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Removed MAD plugin

CQTexperiment
Chris Moeller 2013-10-08 23:56:49 -07:00
parent b23733277c
commit 707bc85e24
69 changed files with 0 additions and 69060 deletions
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43
Cog.xcodeproj/project.pbxproj
View File

@ -101,7 +101,6 @@
17C809940C3BD220005707C4 /* Shorten.bundle in CopyFiles */ = {isa = PBXBuildFile; fileRef = 17C808AF0C3BD1BA005707C4 /* Shorten.bundle */; };
17C809950C3BD223005707C4 /* Musepack.bundle in CopyFiles */ = {isa = PBXBuildFile; fileRef = 17C808A60C3BD1AB005707C4 /* Musepack.bundle */; };
17C809960C3BD226005707C4 /* MonkeysAudio.bundle in CopyFiles */ = {isa = PBXBuildFile; fileRef = 17C8089D0C3BD19F005707C4 /* MonkeysAudio.bundle */; };
17C809970C3BD22A005707C4 /* MAD.bundle in CopyFiles */ = {isa = PBXBuildFile; fileRef = 17C808940C3BD192005707C4 /* MAD.bundle */; };
17C809980C3BD22E005707C4 /* HTTPSource.bundle in CopyFiles */ = {isa = PBXBuildFile; fileRef = 17C8088B0C3BD181005707C4 /* HTTPSource.bundle */; };
17C809990C3BD231005707C4 /* Flac.bundle in CopyFiles */ = {isa = PBXBuildFile; fileRef = 17C808820C3BD173005707C4 /* Flac.bundle */; };
17C8099A0C3BD233005707C4 /* FileSource.bundle in CopyFiles */ = {isa = PBXBuildFile; fileRef = 17C808790C3BD167005707C4 /* FileSource.bundle */; };
@ -201,13 +200,6 @@
remoteGlobalIDString = 8D5B49B6048680CD000E48DA;
remoteInfo = HTTPSource;
};
17C808930C3BD192005707C4 /* PBXContainerItemProxy */ = {
isa = PBXContainerItemProxy;
containerPortal = 17C8088C0C3BD192005707C4 /* MAD.xcodeproj */;
proxyType = 2;
remoteGlobalIDString = 8D5B49B6048680CD000E48DA;
remoteInfo = MAD;
};
17C8089C0C3BD19F005707C4 /* PBXContainerItemProxy */ = {
isa = PBXContainerItemProxy;
containerPortal = 17C808950C3BD19F005707C4 /* MonkeysAudio.xcodeproj */;
@ -306,13 +298,6 @@
remoteGlobalIDString = 8D5B49AC048680CD000E48DA;
remoteInfo = Flac;
};
17C8098D0C3BD1F5005707C4 /* PBXContainerItemProxy */ = {
isa = PBXContainerItemProxy;
containerPortal = 17C8088C0C3BD192005707C4 /* MAD.xcodeproj */;
proxyType = 1;
remoteGlobalIDString = 8D5B49AC048680CD000E48DA;
remoteInfo = MAD;
};
17C8098F0C3BD1F5005707C4 /* PBXContainerItemProxy */ = {
isa = PBXContainerItemProxy;
containerPortal = 17C808B70C3BD1D2005707C4 /* Vorbis.xcodeproj */;
@ -527,7 +512,6 @@
17C8099A0C3BD233005707C4 /* FileSource.bundle in CopyFiles */,
17C809990C3BD231005707C4 /* Flac.bundle in CopyFiles */,
17C809980C3BD22E005707C4 /* HTTPSource.bundle in CopyFiles */,
17C809970C3BD22A005707C4 /* MAD.bundle in CopyFiles */,
17C809960C3BD226005707C4 /* MonkeysAudio.bundle in CopyFiles */,
17C809950C3BD223005707C4 /* Musepack.bundle in CopyFiles */,
17C809940C3BD220005707C4 /* Shorten.bundle in CopyFiles */,
@ -688,7 +672,6 @@
17C808710C3BD167005707C4 /* FileSource.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = FileSource.xcodeproj; path = Plugins/FileSource/FileSource.xcodeproj; sourceTree = "<group>"; };
17C8087A0C3BD173005707C4 /* Flac.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = Flac.xcodeproj; path = Plugins/Flac/Flac.xcodeproj; sourceTree = "<group>"; };
17C808830C3BD181005707C4 /* HTTPSource.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = HTTPSource.xcodeproj; path = Plugins/HTTPSource/HTTPSource.xcodeproj; sourceTree = "<group>"; };
17C8088C0C3BD192005707C4 /* MAD.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = MAD.xcodeproj; path = Plugins/MAD/MAD.xcodeproj; sourceTree = "<group>"; };
17C808950C3BD19F005707C4 /* MonkeysAudio.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = MonkeysAudio.xcodeproj; path = Plugins/MonkeysAudio/MonkeysAudio.xcodeproj; sourceTree = "<group>"; };
17C8089E0C3BD1AB005707C4 /* Musepack.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = Musepack.xcodeproj; path = Plugins/Musepack/Musepack.xcodeproj; sourceTree = "<group>"; };
17C808A70C3BD1BA005707C4 /* Shorten.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = Shorten.xcodeproj; path = Plugins/Shorten/Shorten.xcodeproj; sourceTree = "<group>"; };
@ -1042,7 +1025,6 @@
17C808A70C3BD1BA005707C4 /* Shorten.xcodeproj */,
17C8089E0C3BD1AB005707C4 /* Musepack.xcodeproj */,
17C808950C3BD19F005707C4 /* MonkeysAudio.xcodeproj */,
17C8088C0C3BD192005707C4 /* MAD.xcodeproj */,
17C808830C3BD181005707C4 /* HTTPSource.xcodeproj */,
17C8087A0C3BD173005707C4 /* Flac.xcodeproj */,
17C808710C3BD167005707C4 /* FileSource.xcodeproj */,
@ -1077,14 +1059,6 @@
name = Products;
sourceTree = "<group>";
};
17C8088D0C3BD192005707C4 /* Products */ = {
isa = PBXGroup;
children = (
17C808940C3BD192005707C4 /* MAD.bundle */,
);
name = Products;
sourceTree = "<group>";
};
17C808960C3BD19F005707C4 /* Products */ = {
isa = PBXGroup;
children = (
@ -1538,7 +1512,6 @@
17C809880C3BD1F5005707C4 /* PBXTargetDependency */,
17C8098A0C3BD1F5005707C4 /* PBXTargetDependency */,
17C8098C0C3BD1F5005707C4 /* PBXTargetDependency */,
17C8098E0C3BD1F5005707C4 /* PBXTargetDependency */,
17C809900C3BD1F5005707C4 /* PBXTargetDependency */,
17C809E50C3BD47C005707C4 /* PBXTargetDependency */,
17F5613F0C3BD4E90019975C /* PBXTargetDependency */,
@ -1637,10 +1610,6 @@
ProductGroup = 8E8D40830CBB036600135C1B /* Products */;
ProjectRef = 8E8D40820CBB036600135C1B /* M3u.xcodeproj */;
},
{
ProductGroup = 17C8088D0C3BD192005707C4 /* Products */;
ProjectRef = 17C8088C0C3BD192005707C4 /* MAD.xcodeproj */;
},
{
ProductGroup = 17C808960C3BD19F005707C4 /* Products */;
ProjectRef = 17C808950C3BD19F005707C4 /* MonkeysAudio.xcodeproj */;
@ -1703,13 +1672,6 @@
remoteRef = 17C8088A0C3BD181005707C4 /* PBXContainerItemProxy */;
sourceTree = BUILT_PRODUCTS_DIR;
};
17C808940C3BD192005707C4 /* MAD.bundle */ = {
isa = PBXReferenceProxy;
fileType = wrapper.cfbundle;
path = MAD.bundle;
remoteRef = 17C808930C3BD192005707C4 /* PBXContainerItemProxy */;
sourceTree = BUILT_PRODUCTS_DIR;
};
17C8089D0C3BD19F005707C4 /* MonkeysAudio.bundle */ = {
isa = PBXReferenceProxy;
fileType = wrapper.cfbundle;
@ -2043,11 +2005,6 @@
name = Flac;
targetProxy = 17C8098B0C3BD1F5005707C4 /* PBXContainerItemProxy */;
};
17C8098E0C3BD1F5005707C4 /* PBXTargetDependency */ = {
isa = PBXTargetDependency;
name = MAD;
targetProxy = 17C8098D0C3BD1F5005707C4 /* PBXContainerItemProxy */;
};
17C809900C3BD1F5005707C4 /* PBXTargetDependency */ = {
isa = PBXTargetDependency;
name = Vorbis;

BIN
Frameworks/MAD/English.lproj/InfoPlist.strings
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Binary file not shown.

338
Frameworks/MAD/Files/CHANGES
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@ -1,338 +0,0 @@
libmad - MPEG audio decoder library
Copyright (C) 2000-2004 Underbit Technologies, Inc.
$Id: CHANGES,v 1.14 2004/02/17 02:02:03 rob Exp $
===============================================================================
Version 0.15.1 (beta)
* Updated to autoconf 2.59, automake 1.8.2, libtool 1.5.2.
* Replaced Layer III IMDCT routine with one based on a faster algorithm,
improving both speed and accuracy.
* Improved portability of the Huffman table initialization.
* Fixed a problem that could result in an assertion failure in layer3.c
due to an invalid Layer III free format bitrate.
* Improved the robustness of Layer II bitrate/mode combinations, and added
a new MAD_ERROR_BADMODE error enum. The allowability of low-bitrate
stereo streams is influenced by the --enable-strict-iso option to
`configure'.
Version 0.15.0 (beta)
* Updated to autoconf 2.57, automake 1.7.5, libtool 1.4.3.
* Added new mad_f_div() API routine.
* Added a 64th entry to the Layer I/Layer II scalefactor table, for better
compatibility with existing streams. The --enable-strict-iso option to
`configure' can be used to disable use of this entry.
* Modified the header decoding routine to allow the reserved emphasis
value, for better compatibility with existing streams. The
--enable-strict-iso option to `configure' can be used to restore the
previous behavior of reporting this value as an error.
* Added new MAD_EMPHASIS_RESERVED enumeration constant.
* Fixed a bug in the ARM version of mad_f_scale64() discovered by Andre
McCurdy.
* Rewrote PowerPC assembly for minor gains.
* Modified mad_timer_fraction() to avoid the possibility of division by
zero when 0 is passed as the second argument.
* Fixed a non-fatal problem caused by attempting to designate ancillary
bits in Layer III after a decoding error.
* Changed to build a shared library by default.
* Changed to use native Cygwin build by default; give --host=mingw32 to
`configure' to use MinGW (and avoid a dependency on the Cygwin DLL).
Version 0.14.2 (beta)
* Changed Cygwin builds to use MinGW; resulting Win32 executables no
longer have a dependency on Cygwin DLLs.
* Added a new mad_stream_errorstr() API function to libmad for retrieving
a string description of the current error condition.
Version 0.14.1 (beta)
* Updated config.guess and config.sub to latest upstream versions.
* Enabled libtool versioning rather than release numbering.
* Improved the documentation in minimad.c.
* Several other small fixes.
Version 0.14.0 (beta)
* Added a 64-bit FPM negation operation to improve performance of subband
synthesis on some platforms.
* Improved MSVC++ portability and added MSVC++ project files.
* Added rounding to Layer III requantization for slightly better accuracy.
Version 0.13.0 (beta)
* Ancillary data is now properly extracted from Layer III streams.
* Rewrote the Layer III joint stereo decoding routine to correct a major
MPEG-2 problem and a minor MPEG-1 problem decoding intensity stereo.
* Eliminated the dependency on sign-extending right shifts for Layer I and
Layer II.
* Renamed `private' field to `private_bits' for better C++ compatibility.
* Gratuitously renamed `sfreq' field to `samplerate' and
MAD_ERROR_BADSAMPLEFREQ constant to MAD_ERROR_BADSAMPLERATE.
* Added `samplerate' and `channels' fields to synth.pcm struct to allow
these to be different from the decoded frame, and for simpler access.
* Added new mad_stream_options() and mad_decoder_options() API entries for
special runtime decoding options.
* Added new MAD_OPTION_IGNORECRC and MAD_OPTION_HALFSAMPLERATE options.
* Added new MAD_FLAG_FREEFORMAT indicator flag.
* Fixed some bugs in the async decoder.
* Added a new mad_timer_multiply() API routine.
* Eliminated `+' from asm constraints under Intel for better compatibility
with some compilers.
* Fixed a PIC-related problem in imdct_l_arm.S.
* Eliminated a static variable to make libmad thread-safe.
Version 0.12.5 (beta)
* Modified Layer III requantization to occur during Huffman decoding for
significant performance gains.
* Optimized short block IMDCT by eliminating redundant calculations.
* Made several other Layer III performance improvements; added
ASO_INTERLEAVE1, ASO_INTERLEAVE2, and ASO_ZEROCHECK
architecture-specific options for best performance on various
architectures.
* Optimized synthesis DCT to store result values as soon as they are
calculated.
Version 0.12.4 (beta)
* New PowerPC fixed-point assembly courtesy of David Blythe.
* Reorganized fixed-point assembly routines for easier maintenance and
better performance.
* Improved performance of subband synthesis through better indexing and
fewer local variables.
* Added alias reduction for the lower two subbands of mixed short blocks,
per a report of ambiguity with ISO/IEC 11172-3 and for uniformity with
most other implementations. Also improved alias reduction performance
using multiply/accumulate.
* Added --enable-strict-iso option to `configure' to override best
accepted practices such as the alias reduction for mixed short blocks.
* Improved performance of Layer III IMDCT by using longer
multiply/accumulate runs where possible.
Version 0.12.3 (beta)
* Added MPEG 2.5 support.
* Added preliminary support for parameterizing the binary point position
in the fixed-point representation.
* Added multiply/accumulate optimization to the Layer III IMDCT for long
blocks.
* Fixed a bug in the handling of Layer III mixed_block_flag.
* Fixed a configure problem when multiple -O CFLAGS are present.
Version 0.12.2 (beta)
* Rearranged the synthesis polyphase filterbank memory vector for better
locality of reference, and rewrote mad_synth_frame() to accommodate,
resulting in improved performance.
* Discovered a combination of compiler optimization flags that further
improve performance.
* Changed some array references in layer3.c to pointer derefs.
Version 0.12.1 (beta)
* Resolved the intensity + MS joint stereo issue (a simple bug).
OPT_ISKLUGE is no longer considered to be a kluge.
* Fixed another, hopefully last main_data memory bug.
* Split part of struct mad_frame into struct mad_header for convenience
and size.
Version 0.12.0 (alpha)
* Changed the build environment to use automake and libtool. A libmad
shared library can now be built using the --enable-shared option to
`configure'.
* Added another callback to MAD's high-level decoder API after the frame
header has been read but before the frame's audio data is decoded.
* Streamlined header processing so that mad_frame_decode() can be called
with or without having already called mad_frame_header().
* Fixed some other header reading miscellany, including CRC handling and
free bitrate detection, and frame length verification with free
bitrates.
* Fixed a problem with Layer III free bitrates > 320 kbps. The main_data
buffer size should now be large enough to handle any size frame, by
virtue of the maximum possible part2_3_length.
* Further developed the async API; arbitrary messages can now be passed to
the subsidiary decoding process.
* Streamlined timer.c and extended its interface. It now has support for
video frame/field lengths, including output support for drop-frame
encoding.
* Replaced many constant integer preprocessor defines with enums.
Version 0.11.4 (beta)
* Fixed free format bitrate discovery.
* Changed the timer implementation and extended its interface.
* Integrated Nicolas Pitre's patch for pre-shifting at compile-time and
for better multiply/accumulate code output.
* Applied Simon Burge's patch to imdct_l_arm.S for a.out compatibility.
* Added -mtune=strongarm for all ARM targets.
Version 0.11.3 (beta)
* Added new --enable-speed and --enable-accuracy options for `configure'
to automatically select appropriate SSO/ASO options, et al.
* Modified subband synthesis to use multiply/accumulate optimization (if
available) for better speed and/or accuracy.
* Incorporated Andre McCurdy's changes for further rounding optimizations
in the rest of his code.
Version 0.11.2 (beta)
* Incorporated Nicolas Pitre's ARM assembly and parameterized scaling
changes.
* Incorporated Andre McCurdy's ARM assembly optimization (used only if
--enable-aso is given to `configure' to enable architecture-specific
optimizations.)
* Reduced FPM_INTEL assembly to two instructions.
* Fixed accuracy problems with certain FPM modes in synth.c.
* Improved the accuracy of FPM_APPROX.
* Improved the accuracy of SSO.
* Improved sync discovery by checking for a sync word in the following
frame.
* Minor code clean-up.
* Added experimental rules for generating a libmad.so shared library.
Version 0.11.1 (beta)
* Moved libmad code into a separate directory.
* Changed SSO to be disabled by default, as output accuracy is deemed to
be more important than speed in the general case.
* Fixed a bug in Layer III sanity checking that could cause a crash on
certain random data input.
* Extended the Layer III requantization table from 8191 to 8206 as some
encoders are known to use these values, even though ISO/IEC 11172-3
suggests the maximum should be 8191.
Version 0.11.0 (beta)
* Implemented MPEG-2 extension to Lower Sampling Frequencies.
* Improved Layer III performance by avoiding IMDCT calculation when all
input samples are zero.
* Significantly reduced size of Layer II tables.
Version 0.10.3 (beta)
* Improved SSO output quality.
* Made portable to cygwin.
* Localized memory references in III_huffdecode() for better performance.
Version 0.10.2 (beta)
* Rewrote Layer III long block 36-point IMDCT routine for better
performance.
* Improved subband synthesis fixed-point games somewhat.
Version 0.10.1 (beta)
* Added a subband synthesis optimization (SSO) which involves modifying
the fixed-point multiplication method during windowing. This produces
subtle differences in the output but improves performance greatly.
* Added I_STEREO and MS_STEREO flags to frame struct.
* Eliminated privately-used CRCFAILED flag.
* Fixed a bug where Layer III decoding could crash on some badly-formatted
(e.g. non-MPEG) bitstreams.
* Miscellaneous code clean-up.
Version 0.10.0 (beta)
* Added SPARC fixed-point math support.
* Revamped libmad API for better high- and low-level support.
* Documented more of the code.
* Changed sync semantics such that new stream buffers are assumed to be
sync-aligned.
* Changed Layer III to dynamically allocate static memory so as not to
waste it (about 6.4K) when only decoding Layer I or Layer II.
===============================================================================

340
Frameworks/MAD/Files/COPYING
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@ -1,340 +0,0 @@
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conditions are imposed on you (whether by court order, agreement or
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distribute so as to satisfy simultaneously your obligations under this
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may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
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It is not the purpose of this section to induce you to infringe any
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integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
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to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
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9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
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either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
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10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
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of preserving the free status of all derivatives of our free software and
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NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
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OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

21
Frameworks/MAD/Files/COPYRIGHT
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@ -1,21 +0,0 @@
libmad - MPEG audio decoder library
Copyright (C) 2000-2004 Underbit Technologies, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
If you would like to negotiate alternate licensing terms, you may do
so by contacting: Underbit Technologies, Inc. <info@underbit.com>

116
Frameworks/MAD/Files/CREDITS
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@ -1,116 +0,0 @@
libmad - MPEG audio decoder library
Copyright (C) 2000-2004 Underbit Technologies, Inc.
$Id: CREDITS,v 1.5 2004/02/17 02:02:03 rob Exp $
===============================================================================
AUTHOR
Except where otherwise noted, all code was authored by:
Robert Leslie <rob@underbit.com>
CONTRIBUTORS
Significant contributions have been incorporated with thanks to:
Anonymous
2002/03/15: frame.c
- Reported problem with use of reserved emphasis value.
2003/08/31: layer12.c
- Suggested support for certain disallowed bitrate/mode
combinations.
Niek Albers <info@daansystems.com>
2003/04/21: layer3.c
- Reported runtime uninitialized use of `ptr' in designating
ancillary bits after a decoding error.
Christian Biere <cbiere@users.sourceforge.net>
2003/02/01: frame.c
- Reported assertion failure in layer3.c due to an
invalid/unsupported Layer III free format bitrate.
David Blythe <blythe@routefree.com>
2001/01/30: fixed.h
- Provided initial PowerPC fixed-point assembly.
Simon Burge <simonb@wasabisystems.com>
2000/09/20: imdct_l_arm.S
- Suggested patch for a.out compatibility.
Brian Cameron <Brian.Cameron@sun.com>
2003/07/02: huffman.c
- Suggested changes for improved portability.
Joshua Haberman <joshua@haberman.com>
2001/08/10: decoder.c, huffman.c
- Suggested portability fixes.
Timothy King <lordzork@lordzork.com>
2002/05/04: sf_table.dat, layer12.c
- Reported problem with use of (missing) scalefactor index 63.
Felix von Leitner <felix-mad@fefe.de>
2003/01/21: fixed.h
- Suggested Intel scaling alternative for possible speedup.
Andre McCurdy <armccurdy@yahoo.co.uk>
2000/08/10: imdct_l_arm.S
- ARM optimized assembly replacement for III_imdct_l().
2000/09/15: imdct_l_arm.S
- Applied Nicolas Pitre's rounding optimisation in all remaining
places.
2001/02/10: layer3.c
- Inspiration for Huffman decoding and requantization rewrite, and
other miscellany.
2001/03/24: imdct_l_arm.S
- Corrected PIC unsafe code.
2002/02/16: fixed.h
- Discovered bug in ARM version of mad_f_scale64().
Haruhiko OGASAWARA <theta@m1.interq.or.jp>
2001/01/28: layer3.c
- Reported discrepancy in alias reduction for mixed short blocks.
Brett Paterson <brett@fmod.org>
2001/10/28: global.h
- Reported missing <assert.h> et al. under MS Embedded Visual C.
Sean 'Shaleh' Perry <shaleh@via.net>
2000/04/04: fixed.h
- Suggested use of size-dependent typedefs.
2001/10/22: config.guess, config.sub
- Keep up to date for proper Debian packaging.
Bertrand Petit <eemad@phoe.frmug.org>
2001/11/05: synth.h
- Suggested PCM channel enumeration constants.
2001/11/05: stream.h
- Suggested MAD_ERROR_NONE enumeration constant.
2001/11/05: stream.c
- Suggested mad_stream_errorstr() function.
Nicolas Pitre <nico@cam.org>
2000/09/09: fixed.h
- Parameterized all scaling for correct use of all multiplication
methods within mad_synth_frame().
- Rewrote the FPM_ARM version of mad_f_mul() so we have 64-bit
multiplication result, rounding and scaling with 3 instructions.
2000/09/09: imdct_l_arm.S
- Optimized rounding + scaling operations.
2000/09/17: synth.c
- Changed D[] run-time shifts to compile-time.
- Modified synthesis for better multiply/accumulate code output.
2001/08/11: fixed.h, synth.c
- Suggested 64-bit FPM negation and negative term factorization
during synthesis.
2001/08/11: fixed.h
- Suggested unrounded behavior for FPM_DEFAULT when OPT_SPEED.
2001/11/19: fixed.c
- Suggested computation of any resampling ratio.
===============================================================================

607
Frameworks/MAD/Files/D.dat
View File

@ -1,607 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: D.dat,v 1.9 2004/01/23 09:41:32 rob Exp $
*/
/*
* These are the coefficients for the subband synthesis window. This is a
* reordered version of Table B.3 from ISO/IEC 11172-3.
*
* Every value is parameterized so that shift optimizations can be made at
* compile-time. For example, every value can be right-shifted 12 bits to
* minimize multiply instruction times without any loss of accuracy.
*/
{ PRESHIFT(0x00000000) /* 0.000000000 */, /* 0 */
-PRESHIFT(0x0001d000) /* -0.000442505 */,
PRESHIFT(0x000d5000) /* 0.003250122 */,
-PRESHIFT(0x001cb000) /* -0.007003784 */,
PRESHIFT(0x007f5000) /* 0.031082153 */,
-PRESHIFT(0x01421000) /* -0.078628540 */,
PRESHIFT(0x019ae000) /* 0.100311279 */,
-PRESHIFT(0x09271000) /* -0.572036743 */,
PRESHIFT(0x1251e000) /* 1.144989014 */,
PRESHIFT(0x09271000) /* 0.572036743 */,
PRESHIFT(0x019ae000) /* 0.100311279 */,
PRESHIFT(0x01421000) /* 0.078628540 */,
PRESHIFT(0x007f5000) /* 0.031082153 */,
PRESHIFT(0x001cb000) /* 0.007003784 */,
PRESHIFT(0x000d5000) /* 0.003250122 */,
PRESHIFT(0x0001d000) /* 0.000442505 */,
PRESHIFT(0x00000000) /* 0.000000000 */,
-PRESHIFT(0x0001d000) /* -0.000442505 */,
PRESHIFT(0x000d5000) /* 0.003250122 */,
-PRESHIFT(0x001cb000) /* -0.007003784 */,
PRESHIFT(0x007f5000) /* 0.031082153 */,
-PRESHIFT(0x01421000) /* -0.078628540 */,
PRESHIFT(0x019ae000) /* 0.100311279 */,
-PRESHIFT(0x09271000) /* -0.572036743 */,
PRESHIFT(0x1251e000) /* 1.144989014 */,
PRESHIFT(0x09271000) /* 0.572036743 */,
PRESHIFT(0x019ae000) /* 0.100311279 */,
PRESHIFT(0x01421000) /* 0.078628540 */,
PRESHIFT(0x007f5000) /* 0.031082153 */,
PRESHIFT(0x001cb000) /* 0.007003784 */,
PRESHIFT(0x000d5000) /* 0.003250122 */,
PRESHIFT(0x0001d000) /* 0.000442505 */ },
{ -PRESHIFT(0x00001000) /* -0.000015259 */, /* 1 */
-PRESHIFT(0x0001f000) /* -0.000473022 */,
PRESHIFT(0x000da000) /* 0.003326416 */,
-PRESHIFT(0x00207000) /* -0.007919312 */,
PRESHIFT(0x007d0000) /* 0.030517578 */,
-PRESHIFT(0x0158d000) /* -0.084182739 */,
PRESHIFT(0x01747000) /* 0.090927124 */,
-PRESHIFT(0x099a8000) /* -0.600219727 */,
PRESHIFT(0x124f0000) /* 1.144287109 */,
PRESHIFT(0x08b38000) /* 0.543823242 */,
PRESHIFT(0x01bde000) /* 0.108856201 */,
PRESHIFT(0x012b4000) /* 0.073059082 */,
PRESHIFT(0x0080f000) /* 0.031478882 */,
PRESHIFT(0x00191000) /* 0.006118774 */,
PRESHIFT(0x000d0000) /* 0.003173828 */,
PRESHIFT(0x0001a000) /* 0.000396729 */,
-PRESHIFT(0x00001000) /* -0.000015259 */,
-PRESHIFT(0x0001f000) /* -0.000473022 */,
PRESHIFT(0x000da000) /* 0.003326416 */,
-PRESHIFT(0x00207000) /* -0.007919312 */,
PRESHIFT(0x007d0000) /* 0.030517578 */,
-PRESHIFT(0x0158d000) /* -0.084182739 */,
PRESHIFT(0x01747000) /* 0.090927124 */,
-PRESHIFT(0x099a8000) /* -0.600219727 */,
PRESHIFT(0x124f0000) /* 1.144287109 */,
PRESHIFT(0x08b38000) /* 0.543823242 */,
PRESHIFT(0x01bde000) /* 0.108856201 */,
PRESHIFT(0x012b4000) /* 0.073059082 */,
PRESHIFT(0x0080f000) /* 0.031478882 */,
PRESHIFT(0x00191000) /* 0.006118774 */,
PRESHIFT(0x000d0000) /* 0.003173828 */,
PRESHIFT(0x0001a000) /* 0.000396729 */ },
{ -PRESHIFT(0x00001000) /* -0.000015259 */, /* 2 */
-PRESHIFT(0x00023000) /* -0.000534058 */,
PRESHIFT(0x000de000) /* 0.003387451 */,
-PRESHIFT(0x00245000) /* -0.008865356 */,
PRESHIFT(0x007a0000) /* 0.029785156 */,
-PRESHIFT(0x016f7000) /* -0.089706421 */,
PRESHIFT(0x014a8000) /* 0.080688477 */,
-PRESHIFT(0x0a0d8000) /* -0.628295898 */,
PRESHIFT(0x12468000) /* 1.142211914 */,
PRESHIFT(0x083ff000) /* 0.515609741 */,
PRESHIFT(0x01dd8000) /* 0.116577148 */,
PRESHIFT(0x01149000) /* 0.067520142 */,
PRESHIFT(0x00820000) /* 0.031738281 */,
PRESHIFT(0x0015b000) /* 0.005294800 */,
PRESHIFT(0x000ca000) /* 0.003082275 */,
PRESHIFT(0x00018000) /* 0.000366211 */,
-PRESHIFT(0x00001000) /* -0.000015259 */,
-PRESHIFT(0x00023000) /* -0.000534058 */,
PRESHIFT(0x000de000) /* 0.003387451 */,
-PRESHIFT(0x00245000) /* -0.008865356 */,
PRESHIFT(0x007a0000) /* 0.029785156 */,
-PRESHIFT(0x016f7000) /* -0.089706421 */,
PRESHIFT(0x014a8000) /* 0.080688477 */,
-PRESHIFT(0x0a0d8000) /* -0.628295898 */,
PRESHIFT(0x12468000) /* 1.142211914 */,
PRESHIFT(0x083ff000) /* 0.515609741 */,
PRESHIFT(0x01dd8000) /* 0.116577148 */,
PRESHIFT(0x01149000) /* 0.067520142 */,
PRESHIFT(0x00820000) /* 0.031738281 */,
PRESHIFT(0x0015b000) /* 0.005294800 */,
PRESHIFT(0x000ca000) /* 0.003082275 */,
PRESHIFT(0x00018000) /* 0.000366211 */ },
{ -PRESHIFT(0x00001000) /* -0.000015259 */, /* 3 */
-PRESHIFT(0x00026000) /* -0.000579834 */,
PRESHIFT(0x000e1000) /* 0.003433228 */,
-PRESHIFT(0x00285000) /* -0.009841919 */,
PRESHIFT(0x00765000) /* 0.028884888 */,
-PRESHIFT(0x0185d000) /* -0.095169067 */,
PRESHIFT(0x011d1000) /* 0.069595337 */,
-PRESHIFT(0x0a7fe000) /* -0.656219482 */,
PRESHIFT(0x12386000) /* 1.138763428 */,
PRESHIFT(0x07ccb000) /* 0.487472534 */,
PRESHIFT(0x01f9c000) /* 0.123474121 */,
PRESHIFT(0x00fdf000) /* 0.061996460 */,
PRESHIFT(0x00827000) /* 0.031845093 */,
PRESHIFT(0x00126000) /* 0.004486084 */,
PRESHIFT(0x000c4000) /* 0.002990723 */,
PRESHIFT(0x00015000) /* 0.000320435 */,
-PRESHIFT(0x00001000) /* -0.000015259 */,
-PRESHIFT(0x00026000) /* -0.000579834 */,
PRESHIFT(0x000e1000) /* 0.003433228 */,
-PRESHIFT(0x00285000) /* -0.009841919 */,
PRESHIFT(0x00765000) /* 0.028884888 */,
-PRESHIFT(0x0185d000) /* -0.095169067 */,
PRESHIFT(0x011d1000) /* 0.069595337 */,
-PRESHIFT(0x0a7fe000) /* -0.656219482 */,
PRESHIFT(0x12386000) /* 1.138763428 */,
PRESHIFT(0x07ccb000) /* 0.487472534 */,
PRESHIFT(0x01f9c000) /* 0.123474121 */,
PRESHIFT(0x00fdf000) /* 0.061996460 */,
PRESHIFT(0x00827000) /* 0.031845093 */,
PRESHIFT(0x00126000) /* 0.004486084 */,
PRESHIFT(0x000c4000) /* 0.002990723 */,
PRESHIFT(0x00015000) /* 0.000320435 */ },
{ -PRESHIFT(0x00001000) /* -0.000015259 */, /* 4 */
-PRESHIFT(0x00029000) /* -0.000625610 */,
PRESHIFT(0x000e3000) /* 0.003463745 */,
-PRESHIFT(0x002c7000) /* -0.010848999 */,
PRESHIFT(0x0071e000) /* 0.027801514 */,
-PRESHIFT(0x019bd000) /* -0.100540161 */,
PRESHIFT(0x00ec0000) /* 0.057617187 */,
-PRESHIFT(0x0af15000) /* -0.683914185 */,
PRESHIFT(0x12249000) /* 1.133926392 */,
PRESHIFT(0x075a0000) /* 0.459472656 */,
PRESHIFT(0x0212c000) /* 0.129577637 */,
PRESHIFT(0x00e79000) /* 0.056533813 */,
PRESHIFT(0x00825000) /* 0.031814575 */,
PRESHIFT(0x000f4000) /* 0.003723145 */,
PRESHIFT(0x000be000) /* 0.002899170 */,
PRESHIFT(0x00013000) /* 0.000289917 */,
-PRESHIFT(0x00001000) /* -0.000015259 */,
-PRESHIFT(0x00029000) /* -0.000625610 */,
PRESHIFT(0x000e3000) /* 0.003463745 */,
-PRESHIFT(0x002c7000) /* -0.010848999 */,
PRESHIFT(0x0071e000) /* 0.027801514 */,
-PRESHIFT(0x019bd000) /* -0.100540161 */,
PRESHIFT(0x00ec0000) /* 0.057617187 */,
-PRESHIFT(0x0af15000) /* -0.683914185 */,
PRESHIFT(0x12249000) /* 1.133926392 */,
PRESHIFT(0x075a0000) /* 0.459472656 */,
PRESHIFT(0x0212c000) /* 0.129577637 */,
PRESHIFT(0x00e79000) /* 0.056533813 */,
PRESHIFT(0x00825000) /* 0.031814575 */,
PRESHIFT(0x000f4000) /* 0.003723145 */,
PRESHIFT(0x000be000) /* 0.002899170 */,
PRESHIFT(0x00013000) /* 0.000289917 */ },
{ -PRESHIFT(0x00001000) /* -0.000015259 */, /* 5 */
-PRESHIFT(0x0002d000) /* -0.000686646 */,
PRESHIFT(0x000e4000) /* 0.003479004 */,
-PRESHIFT(0x0030b000) /* -0.011886597 */,
PRESHIFT(0x006cb000) /* 0.026535034 */,
-PRESHIFT(0x01b17000) /* -0.105819702 */,
PRESHIFT(0x00b77000) /* 0.044784546 */,
-PRESHIFT(0x0b619000) /* -0.711318970 */,
PRESHIFT(0x120b4000) /* 1.127746582 */,
PRESHIFT(0x06e81000) /* 0.431655884 */,
PRESHIFT(0x02288000) /* 0.134887695 */,
PRESHIFT(0x00d17000) /* 0.051132202 */,
PRESHIFT(0x0081b000) /* 0.031661987 */,
PRESHIFT(0x000c5000) /* 0.003005981 */,
PRESHIFT(0x000b7000) /* 0.002792358 */,
PRESHIFT(0x00011000) /* 0.000259399 */,
-PRESHIFT(0x00001000) /* -0.000015259 */,
-PRESHIFT(0x0002d000) /* -0.000686646 */,
PRESHIFT(0x000e4000) /* 0.003479004 */,
-PRESHIFT(0x0030b000) /* -0.011886597 */,
PRESHIFT(0x006cb000) /* 0.026535034 */,
-PRESHIFT(0x01b17000) /* -0.105819702 */,
PRESHIFT(0x00b77000) /* 0.044784546 */,
-PRESHIFT(0x0b619000) /* -0.711318970 */,
PRESHIFT(0x120b4000) /* 1.127746582 */,
PRESHIFT(0x06e81000) /* 0.431655884 */,
PRESHIFT(0x02288000) /* 0.134887695 */,
PRESHIFT(0x00d17000) /* 0.051132202 */,
PRESHIFT(0x0081b000) /* 0.031661987 */,
PRESHIFT(0x000c5000) /* 0.003005981 */,
PRESHIFT(0x000b7000) /* 0.002792358 */,
PRESHIFT(0x00011000) /* 0.000259399 */ },
{ -PRESHIFT(0x00001000) /* -0.000015259 */, /* 6 */
-PRESHIFT(0x00031000) /* -0.000747681 */,
PRESHIFT(0x000e4000) /* 0.003479004 */,
-PRESHIFT(0x00350000) /* -0.012939453 */,
PRESHIFT(0x0066c000) /* 0.025085449 */,
-PRESHIFT(0x01c67000) /* -0.110946655 */,
PRESHIFT(0x007f5000) /* 0.031082153 */,
-PRESHIFT(0x0bd06000) /* -0.738372803 */,
PRESHIFT(0x11ec7000) /* 1.120223999 */,
PRESHIFT(0x06772000) /* 0.404083252 */,
PRESHIFT(0x023b3000) /* 0.139450073 */,
PRESHIFT(0x00bbc000) /* 0.045837402 */,
PRESHIFT(0x00809000) /* 0.031387329 */,
PRESHIFT(0x00099000) /* 0.002334595 */,
PRESHIFT(0x000b0000) /* 0.002685547 */,
PRESHIFT(0x00010000) /* 0.000244141 */,
-PRESHIFT(0x00001000) /* -0.000015259 */,
-PRESHIFT(0x00031000) /* -0.000747681 */,
PRESHIFT(0x000e4000) /* 0.003479004 */,
-PRESHIFT(0x00350000) /* -0.012939453 */,
PRESHIFT(0x0066c000) /* 0.025085449 */,
-PRESHIFT(0x01c67000) /* -0.110946655 */,
PRESHIFT(0x007f5000) /* 0.031082153 */,
-PRESHIFT(0x0bd06000) /* -0.738372803 */,
PRESHIFT(0x11ec7000) /* 1.120223999 */,
PRESHIFT(0x06772000) /* 0.404083252 */,
PRESHIFT(0x023b3000) /* 0.139450073 */,
PRESHIFT(0x00bbc000) /* 0.045837402 */,
PRESHIFT(0x00809000) /* 0.031387329 */,
PRESHIFT(0x00099000) /* 0.002334595 */,
PRESHIFT(0x000b0000) /* 0.002685547 */,
PRESHIFT(0x00010000) /* 0.000244141 */ },
{ -PRESHIFT(0x00002000) /* -0.000030518 */, /* 7 */
-PRESHIFT(0x00035000) /* -0.000808716 */,
PRESHIFT(0x000e3000) /* 0.003463745 */,
-PRESHIFT(0x00397000) /* -0.014022827 */,
PRESHIFT(0x005ff000) /* 0.023422241 */,
-PRESHIFT(0x01dad000) /* -0.115921021 */,
PRESHIFT(0x0043a000) /* 0.016510010 */,
-PRESHIFT(0x0c3d9000) /* -0.765029907 */,
PRESHIFT(0x11c83000) /* 1.111373901 */,
PRESHIFT(0x06076000) /* 0.376800537 */,
PRESHIFT(0x024ad000) /* 0.143264771 */,
PRESHIFT(0x00a67000) /* 0.040634155 */,
PRESHIFT(0x007f0000) /* 0.031005859 */,
PRESHIFT(0x0006f000) /* 0.001693726 */,
PRESHIFT(0x000a9000) /* 0.002578735 */,
PRESHIFT(0x0000e000) /* 0.000213623 */,
-PRESHIFT(0x00002000) /* -0.000030518 */,
-PRESHIFT(0x00035000) /* -0.000808716 */,
PRESHIFT(0x000e3000) /* 0.003463745 */,
-PRESHIFT(0x00397000) /* -0.014022827 */,
PRESHIFT(0x005ff000) /* 0.023422241 */,
-PRESHIFT(0x01dad000) /* -0.115921021 */,
PRESHIFT(0x0043a000) /* 0.016510010 */,
-PRESHIFT(0x0c3d9000) /* -0.765029907 */,
PRESHIFT(0x11c83000) /* 1.111373901 */,
PRESHIFT(0x06076000) /* 0.376800537 */,
PRESHIFT(0x024ad000) /* 0.143264771 */,
PRESHIFT(0x00a67000) /* 0.040634155 */,
PRESHIFT(0x007f0000) /* 0.031005859 */,
PRESHIFT(0x0006f000) /* 0.001693726 */,
PRESHIFT(0x000a9000) /* 0.002578735 */,
PRESHIFT(0x0000e000) /* 0.000213623 */ },
{ -PRESHIFT(0x00002000) /* -0.000030518 */, /* 8 */
-PRESHIFT(0x0003a000) /* -0.000885010 */,
PRESHIFT(0x000e0000) /* 0.003417969 */,
-PRESHIFT(0x003df000) /* -0.015121460 */,
PRESHIFT(0x00586000) /* 0.021575928 */,
-PRESHIFT(0x01ee6000) /* -0.120697021 */,
PRESHIFT(0x00046000) /* 0.001068115 */,
-PRESHIFT(0x0ca8d000) /* -0.791213989 */,
PRESHIFT(0x119e9000) /* 1.101211548 */,
PRESHIFT(0x05991000) /* 0.349868774 */,
PRESHIFT(0x02578000) /* 0.146362305 */,
PRESHIFT(0x0091a000) /* 0.035552979 */,
PRESHIFT(0x007d1000) /* 0.030532837 */,
PRESHIFT(0x00048000) /* 0.001098633 */,
PRESHIFT(0x000a1000) /* 0.002456665 */,
PRESHIFT(0x0000d000) /* 0.000198364 */,
-PRESHIFT(0x00002000) /* -0.000030518 */,
-PRESHIFT(0x0003a000) /* -0.000885010 */,
PRESHIFT(0x000e0000) /* 0.003417969 */,
-PRESHIFT(0x003df000) /* -0.015121460 */,
PRESHIFT(0x00586000) /* 0.021575928 */,
-PRESHIFT(0x01ee6000) /* -0.120697021 */,
PRESHIFT(0x00046000) /* 0.001068115 */,
-PRESHIFT(0x0ca8d000) /* -0.791213989 */,
PRESHIFT(0x119e9000) /* 1.101211548 */,
PRESHIFT(0x05991000) /* 0.349868774 */,
PRESHIFT(0x02578000) /* 0.146362305 */,
PRESHIFT(0x0091a000) /* 0.035552979 */,
PRESHIFT(0x007d1000) /* 0.030532837 */,
PRESHIFT(0x00048000) /* 0.001098633 */,
PRESHIFT(0x000a1000) /* 0.002456665 */,
PRESHIFT(0x0000d000) /* 0.000198364 */ },
{ -PRESHIFT(0x00002000) /* -0.000030518 */, /* 9 */
-PRESHIFT(0x0003f000) /* -0.000961304 */,
PRESHIFT(0x000dd000) /* 0.003372192 */,
-PRESHIFT(0x00428000) /* -0.016235352 */,
PRESHIFT(0x00500000) /* 0.019531250 */,
-PRESHIFT(0x02011000) /* -0.125259399 */,
-PRESHIFT(0x003e6000) /* -0.015228271 */,
-PRESHIFT(0x0d11e000) /* -0.816864014 */,
PRESHIFT(0x116fc000) /* 1.089782715 */,
PRESHIFT(0x052c5000) /* 0.323318481 */,
PRESHIFT(0x02616000) /* 0.148773193 */,
PRESHIFT(0x007d6000) /* 0.030609131 */,
PRESHIFT(0x007aa000) /* 0.029937744 */,
PRESHIFT(0x00024000) /* 0.000549316 */,
PRESHIFT(0x0009a000) /* 0.002349854 */,
PRESHIFT(0x0000b000) /* 0.000167847 */,
-PRESHIFT(0x00002000) /* -0.000030518 */,
-PRESHIFT(0x0003f000) /* -0.000961304 */,
PRESHIFT(0x000dd000) /* 0.003372192 */,
-PRESHIFT(0x00428000) /* -0.016235352 */,
PRESHIFT(0x00500000) /* 0.019531250 */,
-PRESHIFT(0x02011000) /* -0.125259399 */,
-PRESHIFT(0x003e6000) /* -0.015228271 */,
-PRESHIFT(0x0d11e000) /* -0.816864014 */,
PRESHIFT(0x116fc000) /* 1.089782715 */,
PRESHIFT(0x052c5000) /* 0.323318481 */,
PRESHIFT(0x02616000) /* 0.148773193 */,
PRESHIFT(0x007d6000) /* 0.030609131 */,
PRESHIFT(0x007aa000) /* 0.029937744 */,
PRESHIFT(0x00024000) /* 0.000549316 */,
PRESHIFT(0x0009a000) /* 0.002349854 */,
PRESHIFT(0x0000b000) /* 0.000167847 */ },
{ -PRESHIFT(0x00002000) /* -0.000030518 */, /* 10 */
-PRESHIFT(0x00044000) /* -0.001037598 */,
PRESHIFT(0x000d7000) /* 0.003280640 */,
-PRESHIFT(0x00471000) /* -0.017349243 */,
PRESHIFT(0x0046b000) /* 0.017257690 */,
-PRESHIFT(0x0212b000) /* -0.129562378 */,
-PRESHIFT(0x0084a000) /* -0.032379150 */,
-PRESHIFT(0x0d78a000) /* -0.841949463 */,
PRESHIFT(0x113be000) /* 1.077117920 */,
PRESHIFT(0x04c16000) /* 0.297210693 */,
PRESHIFT(0x02687000) /* 0.150497437 */,
PRESHIFT(0x0069c000) /* 0.025817871 */,
PRESHIFT(0x0077f000) /* 0.029281616 */,
PRESHIFT(0x00002000) /* 0.000030518 */,
PRESHIFT(0x00093000) /* 0.002243042 */,
PRESHIFT(0x0000a000) /* 0.000152588 */,
-PRESHIFT(0x00002000) /* -0.000030518 */,
-PRESHIFT(0x00044000) /* -0.001037598 */,
PRESHIFT(0x000d7000) /* 0.003280640 */,
-PRESHIFT(0x00471000) /* -0.017349243 */,
PRESHIFT(0x0046b000) /* 0.017257690 */,
-PRESHIFT(0x0212b000) /* -0.129562378 */,
-PRESHIFT(0x0084a000) /* -0.032379150 */,
-PRESHIFT(0x0d78a000) /* -0.841949463 */,
PRESHIFT(0x113be000) /* 1.077117920 */,
PRESHIFT(0x04c16000) /* 0.297210693 */,
PRESHIFT(0x02687000) /* 0.150497437 */,
PRESHIFT(0x0069c000) /* 0.025817871 */,
PRESHIFT(0x0077f000) /* 0.029281616 */,
PRESHIFT(0x00002000) /* 0.000030518 */,
PRESHIFT(0x00093000) /* 0.002243042 */,
PRESHIFT(0x0000a000) /* 0.000152588 */ },
{ -PRESHIFT(0x00003000) /* -0.000045776 */, /* 11 */
-PRESHIFT(0x00049000) /* -0.001113892 */,
PRESHIFT(0x000d0000) /* 0.003173828 */,
-PRESHIFT(0x004ba000) /* -0.018463135 */,
PRESHIFT(0x003ca000) /* 0.014801025 */,
-PRESHIFT(0x02233000) /* -0.133590698 */,
-PRESHIFT(0x00ce4000) /* -0.050354004 */,
-PRESHIFT(0x0ddca000) /* -0.866363525 */,
PRESHIFT(0x1102f000) /* 1.063217163 */,
PRESHIFT(0x04587000) /* 0.271591187 */,
PRESHIFT(0x026cf000) /* 0.151596069 */,
PRESHIFT(0x0056c000) /* 0.021179199 */,
PRESHIFT(0x0074e000) /* 0.028533936 */,
-PRESHIFT(0x0001d000) /* -0.000442505 */,
PRESHIFT(0x0008b000) /* 0.002120972 */,
PRESHIFT(0x00009000) /* 0.000137329 */,
-PRESHIFT(0x00003000) /* -0.000045776 */,
-PRESHIFT(0x00049000) /* -0.001113892 */,
PRESHIFT(0x000d0000) /* 0.003173828 */,
-PRESHIFT(0x004ba000) /* -0.018463135 */,
PRESHIFT(0x003ca000) /* 0.014801025 */,
-PRESHIFT(0x02233000) /* -0.133590698 */,
-PRESHIFT(0x00ce4000) /* -0.050354004 */,
-PRESHIFT(0x0ddca000) /* -0.866363525 */,
PRESHIFT(0x1102f000) /* 1.063217163 */,
PRESHIFT(0x04587000) /* 0.271591187 */,
PRESHIFT(0x026cf000) /* 0.151596069 */,
PRESHIFT(0x0056c000) /* 0.021179199 */,
PRESHIFT(0x0074e000) /* 0.028533936 */,
-PRESHIFT(0x0001d000) /* -0.000442505 */,
PRESHIFT(0x0008b000) /* 0.002120972 */,
PRESHIFT(0x00009000) /* 0.000137329 */ },
{ -PRESHIFT(0x00003000) /* -0.000045776 */, /* 12 */
-PRESHIFT(0x0004f000) /* -0.001205444 */,
PRESHIFT(0x000c8000) /* 0.003051758 */,
-PRESHIFT(0x00503000) /* -0.019577026 */,
PRESHIFT(0x0031a000) /* 0.012115479 */,
-PRESHIFT(0x02326000) /* -0.137298584 */,
-PRESHIFT(0x011b5000) /* -0.069168091 */,
-PRESHIFT(0x0e3dd000) /* -0.890090942 */,
PRESHIFT(0x10c54000) /* 1.048156738 */,
PRESHIFT(0x03f1b000) /* 0.246505737 */,
PRESHIFT(0x026ee000) /* 0.152069092 */,
PRESHIFT(0x00447000) /* 0.016708374 */,
PRESHIFT(0x00719000) /* 0.027725220 */,
-PRESHIFT(0x00039000) /* -0.000869751 */,
PRESHIFT(0x00084000) /* 0.002014160 */,
PRESHIFT(0x00008000) /* 0.000122070 */,
-PRESHIFT(0x00003000) /* -0.000045776 */,
-PRESHIFT(0x0004f000) /* -0.001205444 */,
PRESHIFT(0x000c8000) /* 0.003051758 */,
-PRESHIFT(0x00503000) /* -0.019577026 */,
PRESHIFT(0x0031a000) /* 0.012115479 */,
-PRESHIFT(0x02326000) /* -0.137298584 */,
-PRESHIFT(0x011b5000) /* -0.069168091 */,
-PRESHIFT(0x0e3dd000) /* -0.890090942 */,
PRESHIFT(0x10c54000) /* 1.048156738 */,
PRESHIFT(0x03f1b000) /* 0.246505737 */,
PRESHIFT(0x026ee000) /* 0.152069092 */,
PRESHIFT(0x00447000) /* 0.016708374 */,
PRESHIFT(0x00719000) /* 0.027725220 */,
-PRESHIFT(0x00039000) /* -0.000869751 */,
PRESHIFT(0x00084000) /* 0.002014160 */,
PRESHIFT(0x00008000) /* 0.000122070 */ },
{ -PRESHIFT(0x00004000) /* -0.000061035 */, /* 13 */
-PRESHIFT(0x00055000) /* -0.001296997 */,
PRESHIFT(0x000bd000) /* 0.002883911 */,
-PRESHIFT(0x0054c000) /* -0.020690918 */,
PRESHIFT(0x0025d000) /* 0.009231567 */,
-PRESHIFT(0x02403000) /* -0.140670776 */,
-PRESHIFT(0x016ba000) /* -0.088775635 */,
-PRESHIFT(0x0e9be000) /* -0.913055420 */,
PRESHIFT(0x1082d000) /* 1.031936646 */,
PRESHIFT(0x038d4000) /* 0.221984863 */,
PRESHIFT(0x026e7000) /* 0.151962280 */,
PRESHIFT(0x0032e000) /* 0.012420654 */,
PRESHIFT(0x006df000) /* 0.026840210 */,
-PRESHIFT(0x00053000) /* -0.001266479 */,
PRESHIFT(0x0007d000) /* 0.001907349 */,
PRESHIFT(0x00007000) /* 0.000106812 */,
-PRESHIFT(0x00004000) /* -0.000061035 */,
-PRESHIFT(0x00055000) /* -0.001296997 */,
PRESHIFT(0x000bd000) /* 0.002883911 */,
-PRESHIFT(0x0054c000) /* -0.020690918 */,
PRESHIFT(0x0025d000) /* 0.009231567 */,
-PRESHIFT(0x02403000) /* -0.140670776 */,
-PRESHIFT(0x016ba000) /* -0.088775635 */,
-PRESHIFT(0x0e9be000) /* -0.913055420 */,
PRESHIFT(0x1082d000) /* 1.031936646 */,
PRESHIFT(0x038d4000) /* 0.221984863 */,
PRESHIFT(0x026e7000) /* 0.151962280 */,
PRESHIFT(0x0032e000) /* 0.012420654 */,
PRESHIFT(0x006df000) /* 0.026840210 */,
-PRESHIFT(0x00053000) /* -0.001266479 */,
PRESHIFT(0x0007d000) /* 0.001907349 */,
PRESHIFT(0x00007000) /* 0.000106812 */ },
{ -PRESHIFT(0x00004000) /* -0.000061035 */, /* 14 */
-PRESHIFT(0x0005b000) /* -0.001388550 */,
PRESHIFT(0x000b1000) /* 0.002700806 */,
-PRESHIFT(0x00594000) /* -0.021789551 */,
PRESHIFT(0x00192000) /* 0.006134033 */,
-PRESHIFT(0x024c8000) /* -0.143676758 */,
-PRESHIFT(0x01bf2000) /* -0.109161377 */,
-PRESHIFT(0x0ef69000) /* -0.935195923 */,
PRESHIFT(0x103be000) /* 1.014617920 */,
PRESHIFT(0x032b4000) /* 0.198059082 */,
PRESHIFT(0x026bc000) /* 0.151306152 */,
PRESHIFT(0x00221000) /* 0.008316040 */,
PRESHIFT(0x006a2000) /* 0.025909424 */,
-PRESHIFT(0x0006a000) /* -0.001617432 */,
PRESHIFT(0x00075000) /* 0.001785278 */,
PRESHIFT(0x00007000) /* 0.000106812 */,
-PRESHIFT(0x00004000) /* -0.000061035 */,
-PRESHIFT(0x0005b000) /* -0.001388550 */,
PRESHIFT(0x000b1000) /* 0.002700806 */,
-PRESHIFT(0x00594000) /* -0.021789551 */,
PRESHIFT(0x00192000) /* 0.006134033 */,
-PRESHIFT(0x024c8000) /* -0.143676758 */,
-PRESHIFT(0x01bf2000) /* -0.109161377 */,
-PRESHIFT(0x0ef69000) /* -0.935195923 */,
PRESHIFT(0x103be000) /* 1.014617920 */,
PRESHIFT(0x032b4000) /* 0.198059082 */,
PRESHIFT(0x026bc000) /* 0.151306152 */,
PRESHIFT(0x00221000) /* 0.008316040 */,
PRESHIFT(0x006a2000) /* 0.025909424 */,
-PRESHIFT(0x0006a000) /* -0.001617432 */,
PRESHIFT(0x00075000) /* 0.001785278 */,
PRESHIFT(0x00007000) /* 0.000106812 */ },
{ -PRESHIFT(0x00005000) /* -0.000076294 */, /* 15 */
-PRESHIFT(0x00061000) /* -0.001480103 */,
PRESHIFT(0x000a3000) /* 0.002487183 */,
-PRESHIFT(0x005da000) /* -0.022857666 */,
PRESHIFT(0x000b9000) /* 0.002822876 */,
-PRESHIFT(0x02571000) /* -0.146255493 */,
-PRESHIFT(0x0215c000) /* -0.130310059 */,
-PRESHIFT(0x0f4dc000) /* -0.956481934 */,
PRESHIFT(0x0ff0a000) /* 0.996246338 */,
PRESHIFT(0x02cbf000) /* 0.174789429 */,
PRESHIFT(0x0266e000) /* 0.150115967 */,
PRESHIFT(0x00120000) /* 0.004394531 */,
PRESHIFT(0x00662000) /* 0.024932861 */,
-PRESHIFT(0x0007f000) /* -0.001937866 */,
PRESHIFT(0x0006f000) /* 0.001693726 */,
PRESHIFT(0x00006000) /* 0.000091553 */,
-PRESHIFT(0x00005000) /* -0.000076294 */,
-PRESHIFT(0x00061000) /* -0.001480103 */,
PRESHIFT(0x000a3000) /* 0.002487183 */,
-PRESHIFT(0x005da000) /* -0.022857666 */,
PRESHIFT(0x000b9000) /* 0.002822876 */,
-PRESHIFT(0x02571000) /* -0.146255493 */,
-PRESHIFT(0x0215c000) /* -0.130310059 */,
-PRESHIFT(0x0f4dc000) /* -0.956481934 */,
PRESHIFT(0x0ff0a000) /* 0.996246338 */,
PRESHIFT(0x02cbf000) /* 0.174789429 */,
PRESHIFT(0x0266e000) /* 0.150115967 */,
PRESHIFT(0x00120000) /* 0.004394531 */,
PRESHIFT(0x00662000) /* 0.024932861 */,
-PRESHIFT(0x0007f000) /* -0.001937866 */,
PRESHIFT(0x0006f000) /* 0.001693726 */,
PRESHIFT(0x00006000) /* 0.000091553 */ },
{ -PRESHIFT(0x00005000) /* -0.000076294 */, /* 16 */
-PRESHIFT(0x00068000) /* -0.001586914 */,
PRESHIFT(0x00092000) /* 0.002227783 */,
-PRESHIFT(0x0061f000) /* -0.023910522 */,
-PRESHIFT(0x0002d000) /* -0.000686646 */,
-PRESHIFT(0x025ff000) /* -0.148422241 */,
-PRESHIFT(0x026f7000) /* -0.152206421 */,
-PRESHIFT(0x0fa13000) /* -0.976852417 */,
PRESHIFT(0x0fa13000) /* 0.976852417 */,
PRESHIFT(0x026f7000) /* 0.152206421 */,
PRESHIFT(0x025ff000) /* 0.148422241 */,
PRESHIFT(0x0002d000) /* 0.000686646 */,
PRESHIFT(0x0061f000) /* 0.023910522 */,
-PRESHIFT(0x00092000) /* -0.002227783 */,
PRESHIFT(0x00068000) /* 0.001586914 */,
PRESHIFT(0x00005000) /* 0.000076294 */,
-PRESHIFT(0x00005000) /* -0.000076294 */,
-PRESHIFT(0x00068000) /* -0.001586914 */,
PRESHIFT(0x00092000) /* 0.002227783 */,
-PRESHIFT(0x0061f000) /* -0.023910522 */,
-PRESHIFT(0x0002d000) /* -0.000686646 */,
-PRESHIFT(0x025ff000) /* -0.148422241 */,
-PRESHIFT(0x026f7000) /* -0.152206421 */,
-PRESHIFT(0x0fa13000) /* -0.976852417 */,
PRESHIFT(0x0fa13000) /* 0.976852417 */,
PRESHIFT(0x026f7000) /* 0.152206421 */,
PRESHIFT(0x025ff000) /* 0.148422241 */,
PRESHIFT(0x0002d000) /* 0.000686646 */,
PRESHIFT(0x0061f000) /* 0.023910522 */,
-PRESHIFT(0x00092000) /* -0.002227783 */,
PRESHIFT(0x00068000) /* 0.001586914 */,
PRESHIFT(0x00005000) /* 0.000076294 */ }

183
Frameworks/MAD/Files/INSTALL
View File

@ -1,183 +0,0 @@
Basic Installation
==================
These are generic installation instructions.
The `configure' shell script attempts to guess correct values for
various system-dependent variables used during compilation. It uses
those values to create a `Makefile' in each directory of the package.
It may also create one or more `.h' files containing system-dependent
definitions. Finally, it creates a shell script `config.status' that
you can run in the future to recreate the current configuration, a file
`config.cache' that saves the results of its tests to speed up
reconfiguring, and a file `config.log' containing compiler output
(useful mainly for debugging `configure').
If you need to do unusual things to compile the package, please try
to figure out how `configure' could check whether to do them, and mail
diffs or instructions to the address given in the `README' so they can
be considered for the next release. If at some point `config.cache'
contains results you don't want to keep, you may remove or edit it.
The file `configure.in' is used to create `configure' by a program
called `autoconf'. You only need `configure.in' if you want to change
it or regenerate `configure' using a newer version of `autoconf'.
The simplest way to compile this package is:
1. `cd' to the directory containing the package's source code and type
`./configure' to configure the package for your system. If you're
using `csh' on an old version of System V, you might need to type
`sh ./configure' instead to prevent `csh' from trying to execute
`configure' itself.
Running `configure' takes awhile. While running, it prints some
messages telling which features it is checking for.
2. Type `make' to compile the package.
3. Optionally, type `make check' to run any self-tests that come with
the package.
4. Type `make install' to install the programs and any data files and
documentation.
5. You can remove the program binaries and object files from the
source code directory by typing `make clean'. To also remove the
files that `configure' created (so you can compile the package for
a different kind of computer), type `make distclean'. There is
also a `make maintainer-clean' target, but that is intended mainly
for the package's developers. If you use it, you may have to get
all sorts of other programs in order to regenerate files that came
with the distribution.
Compilers and Options
=====================
Some systems require unusual options for compilation or linking that
the `configure' script does not know about. You can give `configure'
initial values for variables by setting them in the environment. Using
a Bourne-compatible shell, you can do that on the command line like
this:
CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
Or on systems that have the `env' program, you can do it like this:
env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
Compiling For Multiple Architectures
====================================
You can compile the package for more than one kind of computer at the
same time, by placing the object files for each architecture in their
own directory. To do this, you must use a version of `make' that
supports the `VPATH' variable, such as GNU `make'. `cd' to the
directory where you want the object files and executables to go and run
the `configure' script. `configure' automatically checks for the
source code in the directory that `configure' is in and in `..'.
If you have to use a `make' that does not supports the `VPATH'
variable, you have to compile the package for one architecture at a time
in the source code directory. After you have installed the package for
one architecture, use `make distclean' before reconfiguring for another
architecture.
Installation Names
==================
By default, `make install' will install the package's files in
`/usr/local/bin', `/usr/local/man', etc. You can specify an
installation prefix other than `/usr/local' by giving `configure' the
option `--prefix=PATH'.
You can specify separate installation prefixes for
architecture-specific files and architecture-independent files. If you
give `configure' the option `--exec-prefix=PATH', the package will use
PATH as the prefix for installing programs and libraries.
Documentation and other data files will still use the regular prefix.
In addition, if you use an unusual directory layout you can give
options like `--bindir=PATH' to specify different values for particular
kinds of files. Run `configure --help' for a list of the directories
you can set and what kinds of files go in them.
If the package supports it, you can cause programs to be installed
with an extra prefix or suffix on their names by giving `configure' the
option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
Optional Features
=================
Some packages pay attention to `--enable-FEATURE' options to
`configure', where FEATURE indicates an optional part of the package.
They may also pay attention to `--with-PACKAGE' options, where PACKAGE
is something like `gnu-as' or `x' (for the X Window System). The
`README' should mention any `--enable-' and `--with-' options that the
package recognizes.
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@ -1,140 +0,0 @@
##
## libmad - MPEG audio decoder library
## Copyright (C) 2000-2004 Underbit Technologies, Inc.
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##
## $Id: Makefile.am,v 1.23 2004/02/17 02:02:03 rob Exp $
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## From the libtool documentation on library versioning:
##
## CURRENT
## The most recent interface number that this library implements.
##
## REVISION
## The implementation number of the CURRENT interface.
##
## AGE
## The difference between the newest and oldest interfaces that this
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libmad - MPEG audio decoder library
Copyright (C) 2000-2004 Underbit Technologies, Inc.
$Id: README,v 1.4 2004/01/23 09:41:32 rob Exp $
===============================================================================
INTRODUCTION
MAD (libmad) is a high-quality MPEG audio decoder. It currently supports
MPEG-1 and the MPEG-2 extension to Lower Sampling Frequencies, as well as
the so-called MPEG 2.5 format. All three audio layers (Layer I, Layer II,
and Layer III a.k.a. MP3) are fully implemented.
MAD does not yet support MPEG-2 multichannel audio (although it should be
backward compatible with such streams) nor does it currently support AAC.
MAD has the following special features:
- 24-bit PCM output
- 100% fixed-point (integer) computation
- completely new implementation based on the ISO/IEC standards
- distributed under the terms of the GNU General Public License (GPL)
Because MAD provides full 24-bit PCM output, applications using MAD are
able to produce high quality audio. Even when the output device supports
only 16-bit PCM, applications can use the extra resolution to increase the
audible dynamic range through the use of dithering or noise shaping.
Because MAD uses integer computation rather than floating point, it is
well suited for architectures without a floating point unit. All
calculations are performed with a 32-bit fixed-point integer
representation.
Because MAD is a new implementation of the ISO/IEC standards, it is
unencumbered by the errors of other implementations. MAD is NOT a
derivation of the ISO reference source or any other code. Considerable
effort has been expended to ensure a correct implementation, even in cases
where the standards are ambiguous or misleading.
Because MAD is distributed under the terms of the GPL, its redistribution
is not generally restricted, so long as the terms of the GPL are followed.
This means MAD can be incorporated into other software as long as that
software is also distributed under the GPL. (Should this be undesirable,
alternate arrangements may be possible by contacting Underbit.)
===============================================================================
ABOUT THE CODE
The code is optimized and performs very well, although specific
improvements can still be made. The output from the decoder library
consists of 32-bit signed linear fixed-point values that can be easily
scaled for any size PCM output, up to 24 bits per sample.
The API for libmad can be found in the `mad.h' header file. Note that this
file is automatically generated, and will not exist until after you have
built the library.
There are two APIs available, one high-level, and the other low-level.
With the low-level API, each step of the decoding process must be handled
explicitly, offering the greatest amount of control. With the high-level
API, after callbacks are configured, a single routine will decode an
entire bitstream.
The high-level API may either be used synchronously or asynchronously. If
used asynchronously, decoding will occur in a separate process.
Communication is possible with the decoding process by passing control
messages.
The file `minimad.c' contains an example usage of the libmad API that
shows only the bare minimum required to implement a useful decoder. It
expects a regular file to be redirected to standard input, and it sends
decoded 16-bit signed little-endian PCM samples to standard output. If a
decoding error occurs, it is reported to standard error and decoding
continues. Note that the scale() routine in this code is only provided as
an example; it rounds MAD's high-resolution samples down to 16 bits, but
does not perform any dithering or noise shaping. It is therefore not
recommended to use this routine as-is in your own code if sound quality is
important.
Integer Performance
To get the best possible performance, it is recommended that an assembly
version of the fixed-point multiply and related routines be selected.
Several such assembly routines have been written for various CPUs.
If an assembly version is not available, a fast approximation version will
be used. This will result in reduced accuracy of the decoder.
Alternatively, if 64-bit integers are supported as a datatype by the
compiler, another version can be used that is much more accurate.
However, using an assembly version is generally much faster and just as
accurate.
More information can be gathered from the `fixed.h' header file.
MAD's CPU-intensive subband synthesis routine can be further optimized at
the expense of a slight loss in output accuracy due to a modified method
for fixed-point multiplication with a small windowing constant. While this
is helpful for performance and the output accuracy loss is generally
undetectable, it is disabled by default and must be explicitly enabled.
Under some architectures, other special optimizations may also be
available.
Audio Quality
The output from MAD has been found to satisfy the ISO/IEC 11172-4
computational accuracy requirements for compliance. In most
configurations, MAD is a Full Layer III ISO/IEC 11172-3 audio decoder as
defined by the standard.
When the approximation version of the fixed-point multiply is used, MAD is
a limited accuracy ISO/IEC 11172-3 audio decoder as defined by the
standard.
MAD can alternatively be configured to produce output with less or more
accuracy than the default, as a tradeoff with performance.
MAD produces output samples with a precision greater than 24 bits. Because
most output formats use fewer bits, typically 16, it is recommended that a
dithering algorithm be used (rather than rounding or truncating) to obtain
the highest quality audio. However, dithering may unfavorably affect an
analytic examination of the output (such as compliance testing); you may
therefore wish to use rounding in this case instead.
Portability Issues
GCC is preferred to compile the code, but other compilers may also work.
The assembly code in `fixed.h' depends on the inline assembly features of
your compiler. If you're not using GCC or MSVC++, you can either write
your own assembly macros or use the default (low quality output) version.
The union initialization of `huffman.c' may not be portable to all
platforms when GCC is not used.
The code should not be sensitive to word sizes or byte ordering, however
it does assume A % B has the same sign as A.
===============================================================================
BUILDING AND INSTALLING
Windows Platforms
MAD can be built under Windows using either MSVC++ or Cygwin. A MSVC++
project file can be found under the `msvc++' subdirectory.
To build libmad using Cygwin, you will first need to install the Cygwin
tools:
http://www.cygwin.com/
You may then proceed with the following POSIX instructions within the
Cygwin shell.
Note that by default Cygwin will build a library that depends on the
Cygwin DLL. You can use MinGW to build a library that does not depend on
the Cygwin DLL. To do so, give the option --host=mingw32 to `configure'.
POSIX Platforms (including Cygwin)
The code is distributed with a `configure' script that will generate for
you a `Makefile' and a `config.h' for your platform. See the file
`INSTALL' for generic instructions.
The specific options you may want to give `configure' are:
--enable-speed optimize for speed over accuracy
--enable-accuracy optimize for accuracy over speed
--disable-debugging do not compile with debugging support, and
use more optimizations
--disable-shared do not build a shared library
Note that you need not specify one of --enable-speed or --enable-accuracy;
in its default configuration, MAD is optimized for both. You should only
use one of these options if you wish to compromise speed or accuracy for
the other.
By default the package will build a shared library if possible for your
platform. If you want only a static library, use --disable-shared.
It is not normally necessary to use the following options, but you may
fine-tune the configuration with them if desired:
--enable-fpm=ARCH use the ARCH-specific version of the
fixed-point math assembly routines
(current options are: intel, arm, mips,
sparc, ppc; also allowed are: 64bit, approx)
--enable-sso use the subband synthesis optimization,
with reduced accuracy
--disable-aso do not use certain architecture-specific
optimizations
By default an appropriate fixed-point assembly routine will be selected
for the configured host type, if it can be determined. Thus if you are
cross-compiling for another architecture, you should be sure either to
give `configure' a host type argument (--host) or to use an explicit
--enable-fpm option.
If an appropriate assembly routine cannot be determined, the default
approximation version will be used. In this case, use of an alternate
--enable-fpm is highly recommended.
Experimenting and Developing
Further options for `configure' that may be useful to developers and
experimenters are:
--enable-debugging enable diagnostic debugging support and
debugging symbols
--enable-profiling generate `gprof' profiling code
--enable-experimental enable code using the EXPERIMENTAL
preprocessor define
===============================================================================
COPYRIGHT
Please read the `COPYRIGHT' file for copyright and warranty information.
Also, the file `COPYING' contains the full text of the GNU GPL.
Send inquiries, comments, bug reports, suggestions, patches, etc. to:
Underbit Technologies, Inc. <support@underbit.com>
See also the MAD home page on the Web:
http://www.underbit.com/products/mad/
===============================================================================

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libmad - MPEG audio decoder library
Copyright (C) 2000-2004 Underbit Technologies, Inc.
$Id: TODO,v 1.3 2004/02/05 09:02:39 rob Exp $
===============================================================================
libmad:
- more API layers (buffering, PCM samples, dithering, etc.)
- x86 performance optimization compiler flags
- function documentation, general docs
- finish async API
- parse system streams?
- MPEG-2 MC, AAC?
- logarithmic multiplication?
- multiple frame decoding for better locality of reference?
- frame serial numbers, Layer III frame continuity checks
fixed.h:
- experiment with FPM_INTEL:
# if 1
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("shrl %3,%1\n\t" \
"shll %4,%2\n\t" \
"orl %2,%1" \
: "=rm" (__result) \
: "0" (lo), "r" (hi), \
"I" (MAD_F_SCALEBITS), "I" (32 - MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# else
# define mad_f_scale64(hi, lo) \
({ mad_fixed64hi_t __hi_; \
mad_fixed64lo_t __lo_; \
mad_fixed_t __result; \
asm ("sall %2,%1" \
: "=r" (__hi_) \
: "0" (hi), "I" (32 - MAD_F_SCALEBITS) \
: "cc"); \
asm ("shrl %2,%1" \
: "=r" (__lo_) \
: "0" (lo), "I" (MAD_F_SCALEBITS) \
: "cc"); \
asm ("orl %1,%2" \
: "=rm" (__result) \
: "r" (__hi_), "0" (__lo_) \
: "cc"); \
__result; \
})
# endif
libmad Layer I:
- check frame length sanity
libmad Layer II:
- check frame length sanity
libmad Layer III:
- circular buffer
- optimize zero_part from Huffman decoding throughout
- MPEG 2.5 8000 Hz sf bands? mixed blocks?
- stereo->mono conversion optimization?
- enable frame-at-a-time decoding
- improve portability of huffman.c

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Frameworks/MAD/Files/VERSION
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@ -1,7 +0,0 @@
0.15.1b
configure.ac:24
version.h:25-28
msvc++/config.h:99,105,120
msvc++/mad.h:41-44
Makefile.am:98-100

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237
Frameworks/MAD/Files/bit.c
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@ -1,237 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: bit.c,v 1.12 2004/01/23 09:41:32 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# ifdef HAVE_LIMITS_H
# include <limits.h>
# else
# define CHAR_BIT 8
# endif
# include "bit.h"
/*
* This is the lookup table for computing the CRC-check word.
* As described in section 2.4.3.1 and depicted in Figure A.9
* of ISO/IEC 11172-3, the generator polynomial is:
*
* G(X) = X^16 + X^15 + X^2 + 1
*/
static
unsigned short const crc_table[256] = {
0x0000, 0x8005, 0x800f, 0x000a, 0x801b, 0x001e, 0x0014, 0x8011,
0x8033, 0x0036, 0x003c, 0x8039, 0x0028, 0x802d, 0x8027, 0x0022,
0x8063, 0x0066, 0x006c, 0x8069, 0x0078, 0x807d, 0x8077, 0x0072,
0x0050, 0x8055, 0x805f, 0x005a, 0x804b, 0x004e, 0x0044, 0x8041,
0x80c3, 0x00c6, 0x00cc, 0x80c9, 0x00d8, 0x80dd, 0x80d7, 0x00d2,
0x00f0, 0x80f5, 0x80ff, 0x00fa, 0x80eb, 0x00ee, 0x00e4, 0x80e1,
0x00a0, 0x80a5, 0x80af, 0x00aa, 0x80bb, 0x00be, 0x00b4, 0x80b1,
0x8093, 0x0096, 0x009c, 0x8099, 0x0088, 0x808d, 0x8087, 0x0082,
0x8183, 0x0186, 0x018c, 0x8189, 0x0198, 0x819d, 0x8197, 0x0192,
0x01b0, 0x81b5, 0x81bf, 0x01ba, 0x81ab, 0x01ae, 0x01a4, 0x81a1,
0x01e0, 0x81e5, 0x81ef, 0x01ea, 0x81fb, 0x01fe, 0x01f4, 0x81f1,
0x81d3, 0x01d6, 0x01dc, 0x81d9, 0x01c8, 0x81cd, 0x81c7, 0x01c2,
0x0140, 0x8145, 0x814f, 0x014a, 0x815b, 0x015e, 0x0154, 0x8151,
0x8173, 0x0176, 0x017c, 0x8179, 0x0168, 0x816d, 0x8167, 0x0162,
0x8123, 0x0126, 0x012c, 0x8129, 0x0138, 0x813d, 0x8137, 0x0132,
0x0110, 0x8115, 0x811f, 0x011a, 0x810b, 0x010e, 0x0104, 0x8101,
0x8303, 0x0306, 0x030c, 0x8309, 0x0318, 0x831d, 0x8317, 0x0312,
0x0330, 0x8335, 0x833f, 0x033a, 0x832b, 0x032e, 0x0324, 0x8321,
0x0360, 0x8365, 0x836f, 0x036a, 0x837b, 0x037e, 0x0374, 0x8371,
0x8353, 0x0356, 0x035c, 0x8359, 0x0348, 0x834d, 0x8347, 0x0342,
0x03c0, 0x83c5, 0x83cf, 0x03ca, 0x83db, 0x03de, 0x03d4, 0x83d1,
0x83f3, 0x03f6, 0x03fc, 0x83f9, 0x03e8, 0x83ed, 0x83e7, 0x03e2,
0x83a3, 0x03a6, 0x03ac, 0x83a9, 0x03b8, 0x83bd, 0x83b7, 0x03b2,
0x0390, 0x8395, 0x839f, 0x039a, 0x838b, 0x038e, 0x0384, 0x8381,
0x0280, 0x8285, 0x828f, 0x028a, 0x829b, 0x029e, 0x0294, 0x8291,
0x82b3, 0x02b6, 0x02bc, 0x82b9, 0x02a8, 0x82ad, 0x82a7, 0x02a2,
0x82e3, 0x02e6, 0x02ec, 0x82e9, 0x02f8, 0x82fd, 0x82f7, 0x02f2,
0x02d0, 0x82d5, 0x82df, 0x02da, 0x82cb, 0x02ce, 0x02c4, 0x82c1,
0x8243, 0x0246, 0x024c, 0x8249, 0x0258, 0x825d, 0x8257, 0x0252,
0x0270, 0x8275, 0x827f, 0x027a, 0x826b, 0x026e, 0x0264, 0x8261,
0x0220, 0x8225, 0x822f, 0x022a, 0x823b, 0x023e, 0x0234, 0x8231,
0x8213, 0x0216, 0x021c, 0x8219, 0x0208, 0x820d, 0x8207, 0x0202
};
# define CRC_POLY 0x8005
/*
* NAME: bit->init()
* DESCRIPTION: initialize bit pointer struct
*/
void mad_bit_init(struct mad_bitptr *bitptr, unsigned char const *byte)
{
bitptr->byte = byte;
bitptr->cache = 0;
bitptr->left = CHAR_BIT;
}
/*
* NAME: bit->length()
* DESCRIPTION: return number of bits between start and end points
*/
unsigned int mad_bit_length(struct mad_bitptr const *begin,
struct mad_bitptr const *end)
{
return begin->left +
CHAR_BIT * (end->byte - (begin->byte + 1)) + (CHAR_BIT - end->left);
}
/*
* NAME: bit->nextbyte()
* DESCRIPTION: return pointer to next unprocessed byte
*/
unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *bitptr)
{
return bitptr->left == CHAR_BIT ? bitptr->byte : bitptr->byte + 1;
}
/*
* NAME: bit->skip()
* DESCRIPTION: advance bit pointer
*/
void mad_bit_skip(struct mad_bitptr *bitptr, unsigned int len)
{
bitptr->byte += len / CHAR_BIT;
bitptr->left -= len % CHAR_BIT;
if (bitptr->left > CHAR_BIT) {
bitptr->byte++;
bitptr->left += CHAR_BIT;
}
if (bitptr->left < CHAR_BIT)
bitptr->cache = *bitptr->byte;
}
/*
* NAME: bit->read()
* DESCRIPTION: read an arbitrary number of bits and return their UIMSBF value
*/
unsigned long mad_bit_read(struct mad_bitptr *bitptr, unsigned int len)
{
register unsigned long value;
if (bitptr->left == CHAR_BIT)
bitptr->cache = *bitptr->byte;
if (len < bitptr->left) {
value = (bitptr->cache & ((1 << bitptr->left) - 1)) >>
(bitptr->left - len);
bitptr->left -= len;
return value;
}
/* remaining bits in current byte */
value = bitptr->cache & ((1 << bitptr->left) - 1);
len -= bitptr->left;
bitptr->byte++;
bitptr->left = CHAR_BIT;
/* more bytes */
while (len >= CHAR_BIT) {
value = (value << CHAR_BIT) | *bitptr->byte++;
len -= CHAR_BIT;
}
if (len > 0) {
bitptr->cache = *bitptr->byte;
value = (value << len) | (bitptr->cache >> (CHAR_BIT - len));
bitptr->left -= len;
}
return value;
}
# if 0
/*
* NAME: bit->write()
* DESCRIPTION: write an arbitrary number of bits
*/
void mad_bit_write(struct mad_bitptr *bitptr, unsigned int len,
unsigned long value)
{
unsigned char *ptr;
ptr = (unsigned char *) bitptr->byte;
/* ... */
}
# endif
/*
* NAME: bit->crc()
* DESCRIPTION: compute CRC-check word
*/
unsigned short mad_bit_crc(struct mad_bitptr bitptr, unsigned int len,
unsigned short init)
{
register unsigned int crc;
for (crc = init; len >= 32; len -= 32) {
register unsigned long data;
data = mad_bit_read(&bitptr, 32);
crc = (crc << 8) ^ crc_table[((crc >> 8) ^ (data >> 24)) & 0xff];
crc = (crc << 8) ^ crc_table[((crc >> 8) ^ (data >> 16)) & 0xff];
crc = (crc << 8) ^ crc_table[((crc >> 8) ^ (data >> 8)) & 0xff];
crc = (crc << 8) ^ crc_table[((crc >> 8) ^ (data >> 0)) & 0xff];
}
switch (len / 8) {
case 3: crc = (crc << 8) ^
crc_table[((crc >> 8) ^ mad_bit_read(&bitptr, 8)) & 0xff];
case 2: crc = (crc << 8) ^
crc_table[((crc >> 8) ^ mad_bit_read(&bitptr, 8)) & 0xff];
case 1: crc = (crc << 8) ^
crc_table[((crc >> 8) ^ mad_bit_read(&bitptr, 8)) & 0xff];
len %= 8;
case 0: break;
}
while (len--) {
register unsigned int msb;
msb = mad_bit_read(&bitptr, 1) ^ (crc >> 15);
crc <<= 1;
if (msb & 1)
crc ^= CRC_POLY;
}
return crc & 0xffff;
}

47
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/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: bit.h,v 1.12 2004/01/23 09:41:32 rob Exp $
*/
# ifndef LIBMAD_BIT_H
# define LIBMAD_BIT_H
struct mad_bitptr {
unsigned char const *byte;
unsigned short cache;
unsigned short left;
};
void mad_bit_init(struct mad_bitptr *, unsigned char const *);
# define mad_bit_finish(bitptr) /* nothing */
unsigned int mad_bit_length(struct mad_bitptr const *,
struct mad_bitptr const *);
# define mad_bit_bitsleft(bitptr) ((bitptr)->left)
unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *);
void mad_bit_skip(struct mad_bitptr *, unsigned int);
unsigned long mad_bit_read(struct mad_bitptr *, unsigned int);
void mad_bit_write(struct mad_bitptr *, unsigned int, unsigned long);
unsigned short mad_bit_crc(struct mad_bitptr, unsigned int, unsigned short);
# endif

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/* config.h. Generated by configure. */
/* config.h.in. Generated from configure.ac by autoheader. */
/* Define to enable diagnostic debugging support. */
/* #undef DEBUG */
/* Define to enable experimental code. */
/* #undef EXPERIMENTAL */
/* Define to 1 if you have the <assert.h> header file. */
#define HAVE_ASSERT_H 1
/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H 1
/* Define to 1 if you have the <errno.h> header file. */
#define HAVE_ERRNO_H 1
/* Define to 1 if you have the `fcntl' function. */
#define HAVE_FCNTL 1
/* Define to 1 if you have the <fcntl.h> header file. */
#define HAVE_FCNTL_H 1
/* Define to 1 if you have the `fork' function. */
#define HAVE_FORK 1
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the <limits.h> header file. */
#define HAVE_LIMITS_H 1
/* Define if your MIPS CPU supports a 2-operand MADD16 instruction. */
/* #undef HAVE_MADD16_ASM */
/* Define if your MIPS CPU supports a 2-operand MADD instruction. */
/* #undef HAVE_MADD_ASM */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H 1
/* Define to 1 if you have the `pipe' function. */
#define HAVE_PIPE 1
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H 1
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H 1
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H 1
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H 1
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
#define HAVE_SYS_WAIT_H 1
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* Define to 1 if you have the `waitpid' function. */
#define HAVE_WAITPID 1
/* Define to disable debugging assertions. */
#define NDEBUG
/* Define to optimize for accuracy over speed. */
#define OPT_ACCURACY 1
/* Define to optimize for speed over accuracy. */
/* #undef OPT_SPEED */
/* Define to enable a fast subband synthesis approximation optimization. */
/* #undef OPT_SSO */
/* Define to influence a strict interpretation of the ISO/IEC standards, even
if this is in opposition with best accepted practices. */
/* #undef OPT_STRICT */
/* Name of package */
#define PACKAGE "libmad"
/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT "support@underbit.com"
/* Define to the full name of this package. */
#define PACKAGE_NAME "MPEG Audio Decoder"
/* Define to the full name and version of this package. */
#define PACKAGE_STRING "MPEG Audio Decoder 0.15.1b"
/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME "libmad"
/* Define to the version of this package. */
#define PACKAGE_VERSION "0.15.1b"
/* The size of a `int', as computed by sizeof. */
#define SIZEOF_INT 4
/* The size of a `long', as computed by sizeof. */
#define SIZEOF_LONG 4
/* The size of a `long long', as computed by sizeof. */
#define SIZEOF_LONG_LONG 8
/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* Version number of package */
#define VERSION "0.15.1b"
/* Define to 1 if your processor stores words with the most significant byte
first (like Motorola and SPARC, unlike Intel and VAX). */
#define WORDS_BIGENDIAN 1
/* Define to empty if `const' does not conform to ANSI C. */
/* #undef const */
/* Define to `__inline__' or `__inline' if that's what the C compiler
calls it, or to nothing if 'inline' is not supported under any name. */
#ifndef __cplusplus
/* #undef inline */
#endif
/* Define to `int' if <sys/types.h> does not define. */
/* #undef pid_t */

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/* config.h.in. Generated from configure.ac by autoheader. */
/* Define to enable diagnostic debugging support. */
#undef DEBUG
/* Define to enable experimental code. */
#undef EXPERIMENTAL
/* Define to 1 if you have the <assert.h> header file. */
#undef HAVE_ASSERT_H
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H
/* Define to 1 if you have the <errno.h> header file. */
#undef HAVE_ERRNO_H
/* Define to 1 if you have the `fcntl' function. */
#undef HAVE_FCNTL
/* Define to 1 if you have the <fcntl.h> header file. */
#undef HAVE_FCNTL_H
/* Define to 1 if you have the `fork' function. */
#undef HAVE_FORK
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define to 1 if you have the <limits.h> header file. */
#undef HAVE_LIMITS_H
/* Define if your MIPS CPU supports a 2-operand MADD16 instruction. */
#undef HAVE_MADD16_ASM
/* Define if your MIPS CPU supports a 2-operand MADD instruction. */
#undef HAVE_MADD_ASM
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Define to 1 if you have the `pipe' function. */
#undef HAVE_PIPE
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H
/* Define to 1 if you have the <stdlib.h> header file. */
#undef HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#undef HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#undef HAVE_STRING_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#undef HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H
/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
#undef HAVE_SYS_WAIT_H
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to 1 if you have the `waitpid' function. */
#undef HAVE_WAITPID
/* Define to disable debugging assertions. */
#undef NDEBUG
/* Define to optimize for accuracy over speed. */
#undef OPT_ACCURACY
/* Define to optimize for speed over accuracy. */
#undef OPT_SPEED
/* Define to enable a fast subband synthesis approximation optimization. */
#undef OPT_SSO
/* Define to influence a strict interpretation of the ISO/IEC standards, even
if this is in opposition with best accepted practices. */
#undef OPT_STRICT
/* Name of package */
#undef PACKAGE
/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT
/* Define to the full name of this package. */
#undef PACKAGE_NAME
/* Define to the full name and version of this package. */
#undef PACKAGE_STRING
/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME
/* Define to the version of this package. */
#undef PACKAGE_VERSION
/* The size of a `int', as computed by sizeof. */
#undef SIZEOF_INT
/* The size of a `long', as computed by sizeof. */
#undef SIZEOF_LONG
/* The size of a `long long', as computed by sizeof. */
#undef SIZEOF_LONG_LONG
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS
/* Version number of package */
#undef VERSION
/* Define to 1 if your processor stores words with the most significant byte
first (like Motorola and SPARC, unlike Intel and VAX). */
#undef WORDS_BIGENDIAN
/* Define to empty if `const' does not conform to ANSI C. */
#undef const
/* Define to `__inline__' or `__inline' if that's what the C compiler
calls it, or to nothing if 'inline' is not supported under any name. */
#ifndef __cplusplus
#undef inline
#endif
/* Define to `int' if <sys/types.h> does not define. */
#undef pid_t

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Frameworks/MAD/Files/configure.ac
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@ -1,433 +0,0 @@
dnl -*- m4 -*-
dnl
dnl libmad - MPEG audio decoder library
dnl Copyright (C) 2000-2004 Underbit Technologies, Inc.
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
dnl
AC_REVISION([$Id: configure.ac,v 1.9 2004/01/23 09:41:32 rob Exp $])dnl
dnl Process this file with autoconf to produce a configure script.
AC_INIT([MPEG Audio Decoder], [0.15.1b], [support@underbit.com], [libmad])
AC_PREREQ(2.53)
AC_CONFIG_SRCDIR([decoder.h])
AM_INIT_AUTOMAKE
AM_CONFIG_HEADER([config.h])
dnl System type.
AC_CANONICAL_HOST
dnl Checks for programs.
AC_PROG_CC
AM_PROG_AS
if test "$GCC" = yes
then
case "$host" in
*-*-mingw*)
case "$build" in
*-*-cygwin*)
CPPFLAGS="$CPPFLAGS -mno-cygwin"
LDFLAGS="$LDFLAGS -mno-cygwin"
;;
esac
esac
dnl case "$host" in
dnl *-*-cygwin* | *-*-mingw*)
dnl LDFLAGS="$LDFLAGS -no-undefined -mdll"
dnl ;;
dnl esac
fi
dnl Support for libtool.
dnl AC_DISABLE_SHARED
dnl AC_LIBTOOL_WIN32_DLL
AC_PROG_LIBTOOL
AC_SUBST(LIBTOOL_DEPS)
dnl Compiler options.
arch=""
debug=""
optimize=""
profile=""
set -- $CFLAGS
CFLAGS=""
if test "$GCC" = yes
then
CFLAGS="-Wall"
fi
while test $# -gt 0
do
case "$1" in
-Wall)
if test "$GCC" = yes
then
:
else
CFLAGS="$CFLAGS $1"
fi
shift
;;
-g)
debug="-g"
shift
;;
-mno-cygwin)
shift
;;
-m*)
arch="$arch $1"
shift
;;
-O2)
optimize="-O"
shift
;;
-fomit-frame-pointer)
shift
;;
-O*|-f*)
optimize="$optimize $1"
shift
;;
*)
CFLAGS="$CFLAGS $1"
shift
;;
esac
done
if test "$GCC" = yes
then
if test -z "$arch"
then
case "$host" in
i386-*) ;;
i?86-*) arch="-march=i486" ;;
arm*-empeg-*) arch="-march=armv4 -mtune=strongarm1100" ;;
armv4*-*) arch="-march=armv4 -mtune=strongarm" ;;
powerpc-*) ;;
mips*-agenda-*) arch="-mcpu=vr4100" ;;
mips*-luxsonor-*) arch="-mips1 -mcpu=r3000 -Wa,-m4010" ;;
esac
fi
case "$optimize" in
-O|"-O "*)
optimize="-O"
optimize="$optimize -fforce-mem"
optimize="$optimize -fforce-addr"
: #x optimize="$optimize -finline-functions"
: #- optimize="$optimize -fstrength-reduce"
optimize="$optimize -fthread-jumps"
optimize="$optimize -fcse-follow-jumps"
optimize="$optimize -fcse-skip-blocks"
: #x optimize="$optimize -frerun-cse-after-loop"
: #x optimize="$optimize -frerun-loop-opt"
: #x optimize="$optimize -fgcse"
optimize="$optimize -fexpensive-optimizations"
optimize="$optimize -fregmove"
: #* optimize="$optimize -fdelayed-branch"
: #x optimize="$optimize -fschedule-insns"
optimize="$optimize -fschedule-insns2"
: #? optimize="$optimize -ffunction-sections"
: #? optimize="$optimize -fcaller-saves"
: #> optimize="$optimize -funroll-loops"
: #> optimize="$optimize -funroll-all-loops"
: #x optimize="$optimize -fmove-all-movables"
: #x optimize="$optimize -freduce-all-givs"
: #? optimize="$optimize -fstrict-aliasing"
: #* optimize="$optimize -fstructure-noalias"
case "$host" in
arm*-*)
optimize="$optimize -fstrength-reduce"
;;
mips*-*)
optimize="$optimize -fstrength-reduce"
optimize="$optimize -finline-functions"
;;
i?86-*)
optimize="$optimize -fstrength-reduce"
;;
powerpc-apple-*)
# this triggers an internal compiler error with gcc2
: #optimize="$optimize -fstrength-reduce"
# this is really only beneficial with gcc3
: #optimize="$optimize -finline-functions"
;;
*)
# this sometimes provokes bugs in gcc 2.95.2
: #optimize="$optimize -fstrength-reduce"
;;
esac
;;
esac
fi
case "$host" in
mips*-agenda-*)
AC_DEFINE(HAVE_MADD16_ASM, 1,
[Define if your MIPS CPU supports a 2-operand MADD16 instruction.])
;;
mips*-luxsonor-*)
AC_DEFINE(HAVE_MADD_ASM, 1,
[Define if your MIPS CPU supports a 2-operand MADD instruction.])
;;
esac
dnl Checks for header files.
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(assert.h limits.h unistd.h sys/types.h fcntl.h errno.h)
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_C_BIGENDIAN
AC_TYPE_PID_T
AC_CHECK_SIZEOF(int, 2)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 8)
dnl Checks for library functions.
AC_CHECK_FUNCS(waitpid fcntl pipe fork)
dnl Other options.
AC_SUBST(FPM)
AC_SUBST(ASO)
AC_SUBST(ASO_OBJS)
dnl handle --enable and --disable options
AC_CACHE_SAVE
AC_MSG_CHECKING(whether to optimize for speed or for accuracy)
AC_ARG_ENABLE(speed, AC_HELP_STRING([--enable-speed],
[optimize for speed over accuracy]),
[
case "$enableval" in
yes)
optimize_for="speed"
AC_DEFINE(OPT_SPEED, 1,
[Define to optimize for speed over accuracy.])
;;
esac
])
AC_ARG_ENABLE(accuracy, AC_HELP_STRING([--enable-accuracy],
[optimize for accuracy over speed]),
[
case "$enableval" in
yes)
if test "$optimize_for" = "speed"
then
optimize_for="both"
else
optimize_for="accuracy"
fi
AC_DEFINE(OPT_ACCURACY, 1,
[Define to optimize for accuracy over speed.])
;;
esac
])
AC_MSG_RESULT(${optimize_for-default})
if test "$optimize_for" = "both"
then
AC_MSG_ERROR(cannot optimize for both speed and accuracy)
fi
AC_MSG_CHECKING(for architecture-specific fixed-point math routines)
AC_ARG_ENABLE(fpm, AC_HELP_STRING([--enable-fpm=ARCH],
[use ARCH-specific fixed-point math routines
(one of: intel, arm, mips, sparc, ppc, 64bit, default)]),
[
case "$enableval" in
yes) ;;
no|default|approx) FPM="DEFAULT" ;;
intel|i?86) FPM="INTEL" ;;
arm) FPM="ARM" ;;
mips) FPM="MIPS" ;;
sparc) FPM="SPARC" ;;
ppc|powerpc) FPM="PPC" ;;
64bit) FPM="64BIT" ;;
float) FPM="FLOAT" ;;
*)
AC_MSG_RESULT(failed)
AC_MSG_ERROR([bad --enable-fpm option])
;;
esac
])
if test -z "$FPM" && test "$GCC" = yes
then
case "$host" in
i?86-*) FPM="INTEL" ;;
arm*-*) FPM="ARM" ;;
mips*-*) FPM="MIPS" ;;
sparc*-*) FPM="SPARC" ;;
powerpc*-*) FPM="PPC" ;;
# FIXME: need to test for 64-bit long long...
esac
fi
AC_MSG_RESULT(${FPM=DEFAULT})
if test "$FPM" = "DEFAULT"
then
AC_MSG_WARN([default fixed-point math will yield limited accuracy])
fi
FPM="-DFPM_$FPM"
AC_ARG_ENABLE(sso, AC_HELP_STRING([--enable-sso],
[use subband synthesis optimization]),
[
case "$enableval" in
yes)
AC_DEFINE(OPT_SSO, 1,
[Define to enable a fast subband synthesis approximation optimization.])
;;
esac
])
AC_ARG_ENABLE(aso, AC_HELP_STRING([--disable-aso],
[disable architecture-specific optimizations]),
[], [enable_aso=yes])
if test "$enable_aso" = yes
then
case "$host" in
i?86-*)
: #ASO="$ASO -DASO_INTERLEAVE1"
ASO="$ASO -DASO_ZEROCHECK"
: #not yet #ASO="$ASO -DASO_SYNTH"
: #not yet #ASO_OBJS="synth_mmx.lo"
;;
arm*-*)
ASO="$ASO -DASO_INTERLEAVE1"
ASO="$ASO -DASO_IMDCT"
ASO_OBJS="imdct_l_arm.lo"
;;
mips*-*)
ASO="$ASO -DASO_INTERLEAVE2"
ASO="$ASO -DASO_ZEROCHECK"
;;
esac
fi
AC_MSG_CHECKING(for ISO/IEC interpretation)
AC_ARG_ENABLE(strict-iso, AC_HELP_STRING([--enable-strict-iso],
[use strict ISO/IEC interpretations]),
[
case "$enableval" in
yes)
AC_DEFINE(OPT_STRICT, 1,
[Define to influence a strict interpretation of the ISO/IEC standards,
even if this is in opposition with best accepted practices.])
interpretation="strict"
;;
esac
])
AC_MSG_RESULT(${interpretation-best accepted practices})
AC_MSG_CHECKING(whether to enable profiling)
AC_ARG_ENABLE(profiling, AC_HELP_STRING([--enable-profiling],
[generate profiling code]),
[
case "$enableval" in
yes) profile="-pg" ;;
esac
])
AC_MSG_RESULT(${enable_profiling-no})
AC_MSG_CHECKING(whether to enable debugging)
AC_ARG_ENABLE(debugging, AC_HELP_STRING([--enable-debugging],
[enable diagnostic debugging support])
AC_HELP_STRING([--disable-debugging],
[do not enable debugging and use more optimization]),
[
case "$enableval" in
yes)
AC_DEFINE(DEBUG, 1,
[Define to enable diagnostic debugging support.])
optimize=""
;;
no)
if test -n "$profile"
then
AC_MSG_ERROR(--enable-profiling and --disable-debugging are incompatible)
fi
AC_DEFINE(NDEBUG, 1,
[Define to disable debugging assertions.])
debug=""
if test "$GCC" = yes
then
optimize="$optimize -fomit-frame-pointer"
fi
;;
esac
])
AC_MSG_RESULT(${enable_debugging-default})
AC_MSG_CHECKING(whether to enable experimental code)
AC_ARG_ENABLE(experimental, AC_HELP_STRING([--enable-experimental],
[enable experimental code]),
[
case "$enableval" in
yes)
AC_DEFINE(EXPERIMENTAL, 1,
[Define to enable experimental code.])
;;
esac
])
AC_MSG_RESULT(${enable_experimental-no})
dnl Create output files.
test -n "$arch" && CFLAGS="$CFLAGS $arch"
test -n "$debug" && CFLAGS="$CFLAGS $debug"
test -n "$optimize" && CFLAGS="$CFLAGS $optimize"
test -n "$profile" && CFLAGS="$CFLAGS $profile" LDFLAGS="$LDFLAGS $profile"
dnl LTLIBOBJS=`echo "$LIBOBJS" | sed -e 's/\.o/.lo/g'`
dnl AC_SUBST(LTLIBOBJS)
AC_CONFIG_FILES([Makefile msvc++/Makefile \
libmad.list])
AC_OUTPUT

582
Frameworks/MAD/Files/decoder.c
View File

@ -1,582 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: decoder.c,v 1.22 2004/01/23 09:41:32 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
# endif
# ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
# endif
# ifdef HAVE_UNISTD_H
# include <unistd.h>
# endif
# ifdef HAVE_FCNTL_H
# include <fcntl.h>
# endif
# include <stdlib.h>
# ifdef HAVE_ERRNO_H
# include <errno.h>
# endif
# include "stream.h"
# include "frame.h"
# include "synth.h"
# include "decoder.h"
/*
* NAME: decoder->init()
* DESCRIPTION: initialize a decoder object with callback routines
*/
void mad_decoder_init(struct mad_decoder *decoder, void *data,
enum mad_flow (*input_func)(void *,
struct mad_stream *),
enum mad_flow (*header_func)(void *,
struct mad_header const *),
enum mad_flow (*filter_func)(void *,
struct mad_stream const *,
struct mad_frame *),
enum mad_flow (*output_func)(void *,
struct mad_header const *,
struct mad_pcm *),
enum mad_flow (*error_func)(void *,
struct mad_stream *,
struct mad_frame *),
enum mad_flow (*message_func)(void *,
void *, unsigned int *))
{
decoder->mode = -1;
decoder->options = 0;
decoder->async.pid = 0;
decoder->async.in = -1;
decoder->async.out = -1;
decoder->sync = 0;
decoder->cb_data = data;
decoder->input_func = input_func;
decoder->header_func = header_func;
decoder->filter_func = filter_func;
decoder->output_func = output_func;
decoder->error_func = error_func;
decoder->message_func = message_func;
}
int mad_decoder_finish(struct mad_decoder *decoder)
{
# if defined(USE_ASYNC)
if (decoder->mode == MAD_DECODER_MODE_ASYNC && decoder->async.pid) {
pid_t pid;
int status;
close(decoder->async.in);
do
pid = waitpid(decoder->async.pid, &status, 0);
while (pid == -1 && errno == EINTR);
decoder->mode = -1;
close(decoder->async.out);
decoder->async.pid = 0;
decoder->async.in = -1;
decoder->async.out = -1;
if (pid == -1)
return -1;
return (!WIFEXITED(status) || WEXITSTATUS(status)) ? -1 : 0;
}
# endif
return 0;
}
# if defined(USE_ASYNC)
static
enum mad_flow send_io(int fd, void const *data, size_t len)
{
char const *ptr = data;
ssize_t count;
while (len) {
do
count = write(fd, ptr, len);
while (count == -1 && errno == EINTR);
if (count == -1)
return MAD_FLOW_BREAK;
len -= count;
ptr += count;
}
return MAD_FLOW_CONTINUE;
}
static
enum mad_flow receive_io(int fd, void *buffer, size_t len)
{
char *ptr = buffer;
ssize_t count;
while (len) {
do
count = read(fd, ptr, len);
while (count == -1 && errno == EINTR);
if (count == -1)
return (errno == EAGAIN) ? MAD_FLOW_IGNORE : MAD_FLOW_BREAK;
else if (count == 0)
return MAD_FLOW_STOP;
len -= count;
ptr += count;
}
return MAD_FLOW_CONTINUE;
}
static
enum mad_flow receive_io_blocking(int fd, void *buffer, size_t len)
{
int flags, blocking;
enum mad_flow result;
flags = fcntl(fd, F_GETFL);
if (flags == -1)
return MAD_FLOW_BREAK;
blocking = flags & ~O_NONBLOCK;
if (blocking != flags &&
fcntl(fd, F_SETFL, blocking) == -1)
return MAD_FLOW_BREAK;
result = receive_io(fd, buffer, len);
if (flags != blocking &&
fcntl(fd, F_SETFL, flags) == -1)
return MAD_FLOW_BREAK;
return result;
}
static
enum mad_flow send(int fd, void const *message, unsigned int size)
{
enum mad_flow result;
/* send size */
result = send_io(fd, &size, sizeof(size));
/* send message */
if (result == MAD_FLOW_CONTINUE)
result = send_io(fd, message, size);
return result;
}
static
enum mad_flow receive(int fd, void **message, unsigned int *size)
{
enum mad_flow result;
unsigned int actual;
if (*message == 0)
*size = 0;
/* receive size */
result = receive_io(fd, &actual, sizeof(actual));
/* receive message */
if (result == MAD_FLOW_CONTINUE) {
if (actual > *size)
actual -= *size;
else {
*size = actual;
actual = 0;
}
if (*size > 0) {
if (*message == 0) {
*message = malloc(*size);
if (*message == 0)
return MAD_FLOW_BREAK;
}
result = receive_io_blocking(fd, *message, *size);
}
/* throw away remainder of message */
while (actual && result == MAD_FLOW_CONTINUE) {
char sink[256];
unsigned int len;
len = actual > sizeof(sink) ? sizeof(sink) : actual;
result = receive_io_blocking(fd, sink, len);
actual -= len;
}
}
return result;
}
static
enum mad_flow check_message(struct mad_decoder *decoder)
{
enum mad_flow result;
void *message = 0;
unsigned int size;
result = receive(decoder->async.in, &message, &size);
if (result == MAD_FLOW_CONTINUE) {
if (decoder->message_func == 0)
size = 0;
else {
result = decoder->message_func(decoder->cb_data, message, &size);
if (result == MAD_FLOW_IGNORE ||
result == MAD_FLOW_BREAK)
size = 0;
}
if (send(decoder->async.out, message, size) != MAD_FLOW_CONTINUE)
result = MAD_FLOW_BREAK;
}
if (message)
free(message);
return result;
}
# endif
static
enum mad_flow error_default(void *data, struct mad_stream *stream,
struct mad_frame *frame)
{
int *bad_last_frame = data;
switch (stream->error) {
case MAD_ERROR_BADCRC:
if (*bad_last_frame)
mad_frame_mute(frame);
else
*bad_last_frame = 1;
return MAD_FLOW_IGNORE;
default:
return MAD_FLOW_CONTINUE;
}
}
static
int run_sync(struct mad_decoder *decoder)
{
enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
void *error_data;
int bad_last_frame = 0;
struct mad_stream *stream;
struct mad_frame *frame;
struct mad_synth *synth;
int result = 0;
if (decoder->input_func == 0)
return 0;
if (decoder->error_func) {
error_func = decoder->error_func;
error_data = decoder->cb_data;
}
else {
error_func = error_default;
error_data = &bad_last_frame;
}
stream = &decoder->sync->stream;
frame = &decoder->sync->frame;
synth = &decoder->sync->synth;
mad_stream_init(stream);
mad_frame_init(frame);
mad_synth_init(synth);
mad_stream_options(stream, decoder->options);
do {
switch (decoder->input_func(decoder->cb_data, stream)) {
case MAD_FLOW_STOP:
goto done;
case MAD_FLOW_BREAK:
goto fail;
case MAD_FLOW_IGNORE:
continue;
case MAD_FLOW_CONTINUE:
break;
}
while (1) {
# if defined(USE_ASYNC)
if (decoder->mode == MAD_DECODER_MODE_ASYNC) {
switch (check_message(decoder)) {
case MAD_FLOW_IGNORE:
case MAD_FLOW_CONTINUE:
break;
case MAD_FLOW_BREAK:
goto fail;
case MAD_FLOW_STOP:
goto done;
}
}
# endif
if (decoder->header_func) {
if (mad_header_decode(&frame->header, stream) == -1) {
if (!MAD_RECOVERABLE(stream->error))
break;
switch (error_func(error_data, stream, frame)) {
case MAD_FLOW_STOP:
goto done;
case MAD_FLOW_BREAK:
goto fail;
case MAD_FLOW_IGNORE:
case MAD_FLOW_CONTINUE:
default:
continue;
}
}
switch (decoder->header_func(decoder->cb_data, &frame->header)) {
case MAD_FLOW_STOP:
goto done;
case MAD_FLOW_BREAK:
goto fail;
case MAD_FLOW_IGNORE:
continue;
case MAD_FLOW_CONTINUE:
break;
}
}
if (mad_frame_decode(frame, stream) == -1) {
if (!MAD_RECOVERABLE(stream->error))
break;
switch (error_func(error_data, stream, frame)) {
case MAD_FLOW_STOP:
goto done;
case MAD_FLOW_BREAK:
goto fail;
case MAD_FLOW_IGNORE:
break;
case MAD_FLOW_CONTINUE:
default:
continue;
}
}
else
bad_last_frame = 0;
if (decoder->filter_func) {
switch (decoder->filter_func(decoder->cb_data, stream, frame)) {
case MAD_FLOW_STOP:
goto done;
case MAD_FLOW_BREAK:
goto fail;
case MAD_FLOW_IGNORE:
continue;
case MAD_FLOW_CONTINUE:
break;
}
}
mad_synth_frame(synth, frame);
if (decoder->output_func) {
switch (decoder->output_func(decoder->cb_data,
&frame->header, &synth->pcm)) {
case MAD_FLOW_STOP:
goto done;
case MAD_FLOW_BREAK:
goto fail;
case MAD_FLOW_IGNORE:
case MAD_FLOW_CONTINUE:
break;
}
}
}
}
while (stream->error == MAD_ERROR_BUFLEN);
fail:
result = -1;
done:
mad_synth_finish(synth);
mad_frame_finish(frame);
mad_stream_finish(stream);
return result;
}
# if defined(USE_ASYNC)
static
int run_async(struct mad_decoder *decoder)
{
pid_t pid;
int ptoc[2], ctop[2], flags;
if (pipe(ptoc) == -1)
return -1;
if (pipe(ctop) == -1) {
close(ptoc[0]);
close(ptoc[1]);
return -1;
}
flags = fcntl(ptoc[0], F_GETFL);
if (flags == -1 ||
fcntl(ptoc[0], F_SETFL, flags | O_NONBLOCK) == -1) {
close(ctop[0]);
close(ctop[1]);
close(ptoc[0]);
close(ptoc[1]);
return -1;
}
pid = fork();
if (pid == -1) {
close(ctop[0]);
close(ctop[1]);
close(ptoc[0]);
close(ptoc[1]);
return -1;
}
decoder->async.pid = pid;
if (pid) {
/* parent */
close(ptoc[0]);
close(ctop[1]);
decoder->async.in = ctop[0];
decoder->async.out = ptoc[1];
return 0;
}
/* child */
close(ptoc[1]);
close(ctop[0]);
decoder->async.in = ptoc[0];
decoder->async.out = ctop[1];
_exit(run_sync(decoder));
/* not reached */
return -1;
}
# endif
/*
* NAME: decoder->run()
* DESCRIPTION: run the decoder thread either synchronously or asynchronously
*/
int mad_decoder_run(struct mad_decoder *decoder, enum mad_decoder_mode mode)
{
int result;
int (*run)(struct mad_decoder *) = 0;
switch (decoder->mode = mode) {
case MAD_DECODER_MODE_SYNC:
run = run_sync;
break;
case MAD_DECODER_MODE_ASYNC:
# if defined(USE_ASYNC)
run = run_async;
# endif
break;
}
if (run == 0)
return -1;
decoder->sync = malloc(sizeof(*decoder->sync));
if (decoder->sync == 0)
return -1;
result = run(decoder);
free(decoder->sync);
decoder->sync = 0;
return result;
}
/*
* NAME: decoder->message()
* DESCRIPTION: send a message to and receive a reply from the decoder process
*/
int mad_decoder_message(struct mad_decoder *decoder,
void *message, unsigned int *len)
{
# if defined(USE_ASYNC)
if (decoder->mode != MAD_DECODER_MODE_ASYNC ||
send(decoder->async.out, message, *len) != MAD_FLOW_CONTINUE ||
receive(decoder->async.in, &message, len) != MAD_FLOW_CONTINUE)
return -1;
return 0;
# else
return -1;
# endif
}

91
Frameworks/MAD/Files/decoder.h
View File

@ -1,91 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: decoder.h,v 1.17 2004/01/23 09:41:32 rob Exp $
*/
# ifndef LIBMAD_DECODER_H
# define LIBMAD_DECODER_H
# include "stream.h"
# include "frame.h"
# include "synth.h"
enum mad_decoder_mode {
MAD_DECODER_MODE_SYNC = 0,
MAD_DECODER_MODE_ASYNC
};
enum mad_flow {
MAD_FLOW_CONTINUE = 0x0000, /* continue normally */
MAD_FLOW_STOP = 0x0010, /* stop decoding normally */
MAD_FLOW_BREAK = 0x0011, /* stop decoding and signal an error */
MAD_FLOW_IGNORE = 0x0020 /* ignore the current frame */
};
struct mad_decoder {
enum mad_decoder_mode mode;
int options;
struct {
long pid;
int in;
int out;
} async;
struct {
struct mad_stream stream;
struct mad_frame frame;
struct mad_synth synth;
} *sync;
void *cb_data;
enum mad_flow (*input_func)(void *, struct mad_stream *);
enum mad_flow (*header_func)(void *, struct mad_header const *);
enum mad_flow (*filter_func)(void *,
struct mad_stream const *, struct mad_frame *);
enum mad_flow (*output_func)(void *,
struct mad_header const *, struct mad_pcm *);
enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
enum mad_flow (*message_func)(void *, void *, unsigned int *);
};
void mad_decoder_init(struct mad_decoder *, void *,
enum mad_flow (*)(void *, struct mad_stream *),
enum mad_flow (*)(void *, struct mad_header const *),
enum mad_flow (*)(void *,
struct mad_stream const *,
struct mad_frame *),
enum mad_flow (*)(void *,
struct mad_header const *,
struct mad_pcm *),
enum mad_flow (*)(void *,
struct mad_stream *,
struct mad_frame *),
enum mad_flow (*)(void *, void *, unsigned int *));
int mad_decoder_finish(struct mad_decoder *);
# define mad_decoder_options(decoder, opts) \
((void) ((decoder)->options = (opts)))
int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
# endif

464
Frameworks/MAD/Files/depcomp
View File

@ -1,464 +0,0 @@
#! /bin/sh
# depcomp - compile a program generating dependencies as side-effects
# Copyright 1999, 2000 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
echo "depcomp: Variables source, object and depmode must be set" 1>&2
exit 1
fi
# `libtool' can also be set to `yes' or `no'.
if test -z "$depfile"; then
base=`echo "$object" | sed -e 's,^.*/,,' -e 's,\.\([^.]*\)$,.P\1,'`
dir=`echo "$object" | sed 's,/.*$,/,'`
if test "$dir" = "$object"; then
dir=
fi
# FIXME: should be _deps on DOS.
depfile="$dir.deps/$base"
fi
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
rm -f "$tmpdepfile"
# Some modes work just like other modes, but use different flags. We
# parameterize here, but still list the modes in the big case below,
# to make depend.m4 easier to write. Note that we *cannot* use a case
# here, because this file can only contain one case statement.
if test "$depmode" = hp; then
# HP compiler uses -M and no extra arg.
gccflag=-M
depmode=gcc
fi
if test "$depmode" = dashXmstdout; then
# This is just like dashmstdout with a different argument.
dashmflag=-xM
depmode=dashmstdout
fi
case "$depmode" in
gcc3)
## gcc 3 implements dependency tracking that does exactly what
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
## it if -MD -MP comes after the -MF stuff. Hmm.
"$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
mv "$tmpdepfile" "$depfile"
;;
gcc)
## There are various ways to get dependency output from gcc. Here's
## why we pick this rather obscure method:
## - Don't want to use -MD because we'd like the dependencies to end
## up in a subdir. Having to rename by hand is ugly.
## (We might end up doing this anyway to support other compilers.)
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
## -MM, not -M (despite what the docs say).
## - Using -M directly means running the compiler twice (even worse
## than renaming).
if test -z "$gccflag"; then
gccflag=-MD,
fi
"$@" -Wp,"$gccflag$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
echo "$object : \\" > "$depfile"
alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
## The second -e expression handles DOS-style file names with drive letters.
sed -e 's/^[^:]*: / /' \
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
## This next piece of magic avoids the `deleted header file' problem.
## The problem is that when a header file which appears in a .P file
## is deleted, the dependency causes make to die (because there is
## typically no way to rebuild the header). We avoid this by adding
## dummy dependencies for each header file. Too bad gcc doesn't do
## this for us directly.
tr ' ' '
' < "$tmpdepfile" |
## Some versions of gcc put a space before the `:'. On the theory
## that the space means something, we add a space to the output as
## well.
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
sgi)
if test "$libtool" = yes; then
"$@" "-Wp,-MDupdate,$tmpdepfile"
else
"$@" -MDupdate "$tmpdepfile"
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
echo "$object : \\" > "$depfile"
# Clip off the initial element (the dependent). Don't try to be
# clever and replace this with sed code, as IRIX sed won't handle
# lines with more than a fixed number of characters (4096 in
# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
# the IRIX cc adds comments like `#:fec' to the end of the
# dependency line.
tr ' ' '
' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
tr '
' ' ' >> $depfile
echo >> $depfile
# The second pass generates a dummy entry for each header file.
tr ' ' '
' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
>> $depfile
else
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
aix)
# The C for AIX Compiler uses -M and outputs the dependencies
# in a .u file. This file always lives in the current directory.
# Also, the AIX compiler puts `$object:' at the start of each line;
# $object doesn't have directory information.
stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
tmpdepfile="$stripped.u"
outname="$stripped.o"
if test "$libtool" = yes; then
"$@" -Wc,-M
else
"$@" -M
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
if test -f "$tmpdepfile"; then
# Each line is of the form `foo.o: dependent.h'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
else
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
icc)
# Must come before tru64.
# Intel's C compiler understands `-MD -MF file'. However
# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
# will fill foo.d with something like
# foo.o: sub/foo.c
# foo.o: sub/foo.h
# which is wrong. We want:
# sub/foo.o: sub/foo.c
# sub/foo.o: sub/foo.h
# sub/foo.c:
# sub/foo.h:
"$@" -MD -MF "$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
# Each line is of the form `foo.o: dependent.h'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed -e "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
sed -e "s,^[^:]*: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
rm -f "$tmpdepfile"
;;
tru64)
# The Tru64 compiler uses -MD to generate dependencies as a side
# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
# dependencies in `foo.d' instead, so we check for that too.
# Subdirectories are respected.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then
tmpdepfile1="$dir.libs/$base.lo.d"
tmpdepfile2="$dir.libs/$base.d"
"$@" -Wc,-MD
else
tmpdepfile1="$dir$base.o.d"
tmpdepfile2="$dir$base.d"
"$@" -MD
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile1" "$tmpdepfile2"
exit $stat
fi
if test -f "$tmpdepfile1"; then
tmpdepfile="$tmpdepfile1"
else
tmpdepfile="$tmpdepfile2"
fi
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
# That's a space and a tab in the [].
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
else
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
#nosideeffect)
# This comment above is used by automake to tell side-effect
# dependency tracking mechanisms from slower ones.
dashmstdout)
# Important note: in order to support this mode, a compiler *must*
# always write the proprocessed file to stdout, regardless of -o.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
test -z "$dashmflag" && dashmflag=-M
# Require at least two characters before searching for `:'
# in the target name. This is to cope with DOS-style filenames:
# a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
"$@" $dashmflag |
sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
tr ' ' '
' < "$tmpdepfile" | \
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
dashXmstdout)
# This case only exists to satisfy depend.m4. It is never actually
# run, as this mode is specially recognized in the preamble.
exit 1
;;
makedepend)
"$@" || exit $?
# Remove any Libtool call
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# X makedepend
shift
cleared=no
for arg in "$@"; do
case $cleared in
no)
set ""; shift
cleared=yes ;;
esac
case "$arg" in
-D*|-I*)
set fnord "$@" "$arg"; shift ;;
# Strip any option that makedepend may not understand. Remove
# the object too, otherwise makedepend will parse it as a source file.
-*|$object)
;;
*)
set fnord "$@" "$arg"; shift ;;
esac
done
obj_suffix="`echo $object | sed 's/^.*\././'`"
touch "$tmpdepfile"
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
sed '1,2d' "$tmpdepfile" | tr ' ' '
' | \
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile" "$tmpdepfile".bak
;;
cpp)
# Important note: in order to support this mode, a compiler *must*
# always write the proprocessed file to stdout.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
"$@" -E |
sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
sed '$ s: \\$::' > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
cat < "$tmpdepfile" >> "$depfile"
sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
msvisualcpp)
# Important note: in order to support this mode, a compiler *must*
# always write the proprocessed file to stdout, regardless of -o,
# because we must use -o when running libtool.
"$@" || exit $?
IFS=" "
for arg
do
case "$arg" in
"-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
set fnord "$@"
shift
shift
;;
*)
set fnord "$@" "$arg"
shift
shift
;;
esac
done
"$@" -E |
sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
. "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
echo " " >> "$depfile"
. "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
rm -f "$tmpdepfile"
;;
none)
exec "$@"
;;
*)
echo "Unknown depmode $depmode" 1>&2
exit 1
;;
esac
exit 0

81
Frameworks/MAD/Files/fixed.c
View File

@ -1,81 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: fixed.c,v 1.13 2004/01/23 09:41:32 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# include "fixed.h"
/*
* NAME: fixed->abs()
* DESCRIPTION: return absolute value of a fixed-point number
*/
mad_fixed_t mad_f_abs(mad_fixed_t x)
{
return x < 0 ? -x : x;
}
/*
* NAME: fixed->div()
* DESCRIPTION: perform division using fixed-point math
*/
mad_fixed_t mad_f_div(mad_fixed_t x, mad_fixed_t y)
{
mad_fixed_t q, r;
unsigned int bits;
q = mad_f_abs(x / y);
if (x < 0) {
x = -x;
y = -y;
}
r = x % y;
if (y < 0) {
x = -x;
y = -y;
}
if (q > mad_f_intpart(MAD_F_MAX) &&
!(q == -mad_f_intpart(MAD_F_MIN) && r == 0 && (x < 0) != (y < 0)))
return 0;
for (bits = MAD_F_FRACBITS; bits && r; --bits) {
q <<= 1, r <<= 1;
if (r >= y)
r -= y, ++q;
}
/* round */
if (2 * r >= y)
++q;
/* fix sign */
if ((x < 0) != (y < 0))
q = -q;
return q << bits;
}

499
Frameworks/MAD/Files/fixed.h
View File

@ -1,499 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: fixed.h,v 1.38 2004/02/17 02:02:03 rob Exp $
*/
# ifndef LIBMAD_FIXED_H
# define LIBMAD_FIXED_H
# if SIZEOF_INT >= 4
typedef signed int mad_fixed_t;
typedef signed int mad_fixed64hi_t;
typedef unsigned int mad_fixed64lo_t;
# else
typedef signed long mad_fixed_t;
typedef signed long mad_fixed64hi_t;
typedef unsigned long mad_fixed64lo_t;
# endif
# if defined(_MSC_VER)
# define mad_fixed64_t signed __int64
# elif 1 || defined(__GNUC__)
# define mad_fixed64_t signed long long
# endif
# if defined(FPM_FLOAT)
typedef double mad_sample_t;
# else
typedef mad_fixed_t mad_sample_t;
# endif
/*
* Fixed-point format: 0xABBBBBBB
* A == whole part (sign + 3 bits)
* B == fractional part (28 bits)
*
* Values are signed two's complement, so the effective range is:
* 0x80000000 to 0x7fffffff
* -8.0 to +7.9999999962747097015380859375
*
* The smallest representable value is:
* 0x00000001 == 0.0000000037252902984619140625 (i.e. about 3.725e-9)
*
* 28 bits of fractional accuracy represent about
* 8.6 digits of decimal accuracy.
*
* Fixed-point numbers can be added or subtracted as normal
* integers, but multiplication requires shifting the 64-bit result
* from 56 fractional bits back to 28 (and rounding.)
*
* Changing the definition of MAD_F_FRACBITS is only partially
* supported, and must be done with care.
*/
# define MAD_F_FRACBITS 28
# if MAD_F_FRACBITS == 28
# define MAD_F(x) ((mad_fixed_t) (x##L))
# else
# if MAD_F_FRACBITS < 28
# warning "MAD_F_FRACBITS < 28"
# define MAD_F(x) ((mad_fixed_t) \
(((x##L) + \
(1L << (28 - MAD_F_FRACBITS - 1))) >> \
(28 - MAD_F_FRACBITS)))
# elif MAD_F_FRACBITS > 28
# error "MAD_F_FRACBITS > 28 not currently supported"
# define MAD_F(x) ((mad_fixed_t) \
((x##L) << (MAD_F_FRACBITS - 28)))
# endif
# endif
# define MAD_F_MIN ((mad_fixed_t) -0x80000000L)
# define MAD_F_MAX ((mad_fixed_t) +0x7fffffffL)
# define MAD_F_ONE MAD_F(0x10000000)
# define mad_f_tofixed(x) ((mad_fixed_t) \
((x) * (double) (1L << MAD_F_FRACBITS) + 0.5))
# define mad_f_todouble(x) ((double) \
((x) / (double) (1L << MAD_F_FRACBITS)))
# define mad_f_intpart(x) ((x) >> MAD_F_FRACBITS)
# define mad_f_fracpart(x) ((x) & ((1L << MAD_F_FRACBITS) - 1))
/* (x should be positive) */
# define mad_f_fromint(x) ((x) << MAD_F_FRACBITS)
# define mad_f_add(x, y) ((x) + (y))
# define mad_f_sub(x, y) ((x) - (y))
# if defined(FPM_FLOAT)
# error "FPM_FLOAT not yet supported"
# undef MAD_F
# define MAD_F(x) mad_f_todouble(x)
# define mad_f_mul(x, y) ((x) * (y))
# define mad_f_scale64
# undef ASO_ZEROCHECK
# elif defined(FPM_64BIT)
/*
* This version should be the most accurate if 64-bit types are supported by
* the compiler, although it may not be the most efficient.
*/
# if defined(OPT_ACCURACY)
# define mad_f_mul(x, y) \
((mad_fixed_t) \
((((mad_fixed64_t) (x) * (y)) + \
(1L << (MAD_F_SCALEBITS - 1))) >> MAD_F_SCALEBITS))
# else
# define mad_f_mul(x, y) \
((mad_fixed_t) (((mad_fixed64_t) (x) * (y)) >> MAD_F_SCALEBITS))
# endif
# define MAD_F_SCALEBITS MAD_F_FRACBITS
/* --- Intel --------------------------------------------------------------- */
# elif defined(FPM_INTEL)
# if defined(_MSC_VER)
# pragma warning(push)
# pragma warning(disable: 4035) /* no return value */
static __forceinline
mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
{
enum {
fracbits = MAD_F_FRACBITS
};
__asm {
mov eax, x
imul y
shrd eax, edx, fracbits
}
/* implicit return of eax */
}
# pragma warning(pop)
# define mad_f_mul mad_f_mul_inline
# define mad_f_scale64
# else
/*
* This Intel version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
asm ("imull %3" \
: "=a" (lo), "=d" (hi) \
: "%a" (x), "rm" (y) \
: "cc")
# if defined(OPT_ACCURACY)
/*
* This gives best accuracy but is not very fast.
*/
# define MAD_F_MLA(hi, lo, x, y) \
({ mad_fixed64hi_t __hi; \
mad_fixed64lo_t __lo; \
MAD_F_MLX(__hi, __lo, (x), (y)); \
asm ("addl %2,%0\n\t" \
"adcl %3,%1" \
: "=rm" (lo), "=rm" (hi) \
: "r" (__lo), "r" (__hi), "0" (lo), "1" (hi) \
: "cc"); \
})
# endif /* OPT_ACCURACY */
# if defined(OPT_ACCURACY)
/*
* Surprisingly, this is faster than SHRD followed by ADC.
*/
# define mad_f_scale64(hi, lo) \
({ mad_fixed64hi_t __hi_; \
mad_fixed64lo_t __lo_; \
mad_fixed_t __result; \
asm ("addl %4,%2\n\t" \
"adcl %5,%3" \
: "=rm" (__lo_), "=rm" (__hi_) \
: "0" (lo), "1" (hi), \
"ir" (1L << (MAD_F_SCALEBITS - 1)), "ir" (0) \
: "cc"); \
asm ("shrdl %3,%2,%1" \
: "=rm" (__result) \
: "0" (__lo_), "r" (__hi_), "I" (MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# elif defined(OPT_INTEL)
/*
* Alternate Intel scaling that may or may not perform better.
*/
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("shrl %3,%1\n\t" \
"shll %4,%2\n\t" \
"orl %2,%1" \
: "=rm" (__result) \
: "0" (lo), "r" (hi), \
"I" (MAD_F_SCALEBITS), "I" (32 - MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# else
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("shrdl %3,%2,%1" \
: "=rm" (__result) \
: "0" (lo), "r" (hi), "I" (MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# endif /* OPT_ACCURACY */
# define MAD_F_SCALEBITS MAD_F_FRACBITS
# endif
/* --- ARM ----------------------------------------------------------------- */
# elif defined(FPM_ARM)
/*
* This ARM V4 version is as accurate as FPM_64BIT but much faster. The
* least significant bit is properly rounded at no CPU cycle cost!
*/
# if 1
/*
* This is faster than the default implementation via MAD_F_MLX() and
* mad_f_scale64().
*/
# define mad_f_mul(x, y) \
({ mad_fixed64hi_t __hi; \
mad_fixed64lo_t __lo; \
mad_fixed_t __result; \
asm ("smull %0, %1, %3, %4\n\t" \
"movs %0, %0, lsr %5\n\t" \
"adc %2, %0, %1, lsl %6" \
: "=&r" (__lo), "=&r" (__hi), "=r" (__result) \
: "%r" (x), "r" (y), \
"M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# endif
# define MAD_F_MLX(hi, lo, x, y) \
asm ("smull %0, %1, %2, %3" \
: "=&r" (lo), "=&r" (hi) \
: "%r" (x), "r" (y))
# define MAD_F_MLA(hi, lo, x, y) \
asm ("smlal %0, %1, %2, %3" \
: "+r" (lo), "+r" (hi) \
: "%r" (x), "r" (y))
# define MAD_F_MLN(hi, lo) \
asm ("rsbs %0, %2, #0\n\t" \
"rsc %1, %3, #0" \
: "=r" (lo), "=r" (hi) \
: "0" (lo), "1" (hi) \
: "cc")
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("movs %0, %1, lsr %3\n\t" \
"adc %0, %0, %2, lsl %4" \
: "=&r" (__result) \
: "r" (lo), "r" (hi), \
"M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# define MAD_F_SCALEBITS MAD_F_FRACBITS
/* --- MIPS ---------------------------------------------------------------- */
# elif defined(FPM_MIPS)
/*
* This MIPS version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
asm ("mult %2,%3" \
: "=l" (lo), "=h" (hi) \
: "%r" (x), "r" (y))
# if defined(HAVE_MADD_ASM)
# define MAD_F_MLA(hi, lo, x, y) \
asm ("madd %2,%3" \
: "+l" (lo), "+h" (hi) \
: "%r" (x), "r" (y))
# elif defined(HAVE_MADD16_ASM)
/*
* This loses significant accuracy due to the 16-bit integer limit in the
* multiply/accumulate instruction.
*/
# define MAD_F_ML0(hi, lo, x, y) \
asm ("mult %2,%3" \
: "=l" (lo), "=h" (hi) \
: "%r" ((x) >> 12), "r" ((y) >> 16))
# define MAD_F_MLA(hi, lo, x, y) \
asm ("madd16 %2,%3" \
: "+l" (lo), "+h" (hi) \
: "%r" ((x) >> 12), "r" ((y) >> 16))
# define MAD_F_MLZ(hi, lo) ((mad_fixed_t) (lo))
# endif
# if defined(OPT_SPEED)
# define mad_f_scale64(hi, lo) \
((mad_fixed_t) ((hi) << (32 - MAD_F_SCALEBITS)))
# define MAD_F_SCALEBITS MAD_F_FRACBITS
# endif
/* --- SPARC --------------------------------------------------------------- */
# elif defined(FPM_SPARC)
/*
* This SPARC V8 version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
asm ("smul %2, %3, %0\n\t" \
"rd %%y, %1" \
: "=r" (lo), "=r" (hi) \
: "%r" (x), "rI" (y))
/* --- PowerPC ------------------------------------------------------------- */
# elif defined(FPM_PPC)
/*
* This PowerPC version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
do { \
asm ("mullw %0,%1,%2" \
: "=r" (lo) \
: "%r" (x), "r" (y)); \
asm ("mulhw %0,%1,%2" \
: "=r" (hi) \
: "%r" (x), "r" (y)); \
} \
while (0)
# if defined(OPT_ACCURACY)
/*
* This gives best accuracy but is not very fast.
*/
# define MAD_F_MLA(hi, lo, x, y) \
({ mad_fixed64hi_t __hi; \
mad_fixed64lo_t __lo; \
MAD_F_MLX(__hi, __lo, (x), (y)); \
asm ("addc %0,%2,%3\n\t" \
"adde %1,%4,%5" \
: "=r" (lo), "=r" (hi) \
: "%r" (lo), "r" (__lo), \
"%r" (hi), "r" (__hi) \
: "xer"); \
})
# endif
# if defined(OPT_ACCURACY)
/*
* This is slower than the truncating version below it.
*/
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result, __round; \
asm ("rotrwi %0,%1,%2" \
: "=r" (__result) \
: "r" (lo), "i" (MAD_F_SCALEBITS)); \
asm ("extrwi %0,%1,1,0" \
: "=r" (__round) \
: "r" (__result)); \
asm ("insrwi %0,%1,%2,0" \
: "+r" (__result) \
: "r" (hi), "i" (MAD_F_SCALEBITS)); \
asm ("add %0,%1,%2" \
: "=r" (__result) \
: "%r" (__result), "r" (__round)); \
__result; \
})
# else
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("rotrwi %0,%1,%2" \
: "=r" (__result) \
: "r" (lo), "i" (MAD_F_SCALEBITS)); \
asm ("insrwi %0,%1,%2,0" \
: "+r" (__result) \
: "r" (hi), "i" (MAD_F_SCALEBITS)); \
__result; \
})
# endif
# define MAD_F_SCALEBITS MAD_F_FRACBITS
/* --- Default ------------------------------------------------------------- */
# elif defined(FPM_DEFAULT)
/*
* This version is the most portable but it loses significant accuracy.
* Furthermore, accuracy is biased against the second argument, so care
* should be taken when ordering operands.
*
* The scale factors are constant as this is not used with SSO.
*
* Pre-rounding is required to stay within the limits of compliance.
*/
# if defined(OPT_SPEED)
# define mad_f_mul(x, y) (((x) >> 12) * ((y) >> 16))
# else
# define mad_f_mul(x, y) ((((x) + (1L << 11)) >> 12) * \
(((y) + (1L << 15)) >> 16))
# endif
/* ------------------------------------------------------------------------- */
# else
# error "no FPM selected"
# endif
/* default implementations */
# if !defined(mad_f_mul)
# define mad_f_mul(x, y) \
({ register mad_fixed64hi_t __hi; \
register mad_fixed64lo_t __lo; \
MAD_F_MLX(__hi, __lo, (x), (y)); \
mad_f_scale64(__hi, __lo); \
})
# endif
# if !defined(MAD_F_MLA)
# define MAD_F_ML0(hi, lo, x, y) ((lo) = mad_f_mul((x), (y)))
# define MAD_F_MLA(hi, lo, x, y) ((lo) += mad_f_mul((x), (y)))
# define MAD_F_MLN(hi, lo) ((lo) = -(lo))
# define MAD_F_MLZ(hi, lo) ((void) (hi), (mad_fixed_t) (lo))
# endif
# if !defined(MAD_F_ML0)
# define MAD_F_ML0(hi, lo, x, y) MAD_F_MLX((hi), (lo), (x), (y))
# endif
# if !defined(MAD_F_MLN)
# define MAD_F_MLN(hi, lo) ((hi) = ((lo) = -(lo)) ? ~(hi) : -(hi))
# endif
# if !defined(MAD_F_MLZ)
# define MAD_F_MLZ(hi, lo) mad_f_scale64((hi), (lo))
# endif
# if !defined(mad_f_scale64)
# if defined(OPT_ACCURACY)
# define mad_f_scale64(hi, lo) \
((((mad_fixed_t) \
(((hi) << (32 - (MAD_F_SCALEBITS - 1))) | \
((lo) >> (MAD_F_SCALEBITS - 1)))) + 1) >> 1)
# else
# define mad_f_scale64(hi, lo) \
((mad_fixed_t) \
(((hi) << (32 - MAD_F_SCALEBITS)) | \
((lo) >> MAD_F_SCALEBITS)))
# endif
# define MAD_F_SCALEBITS MAD_F_FRACBITS
# endif
/* C routines */
mad_fixed_t mad_f_abs(mad_fixed_t);
mad_fixed_t mad_f_div(mad_fixed_t, mad_fixed_t);
# endif

505
Frameworks/MAD/Files/frame.c
View File

@ -1,505 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: frame.c,v 1.29 2004/02/04 22:59:19 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# include <stdlib.h>
# include "bit.h"
# include "stream.h"
# include "frame.h"
# include "timer.h"
# include "layer12.h"
# include "layer3.h"
static
unsigned long const bitrate_table[5][15] = {
/* MPEG-1 */
{ 0, 32000, 64000, 96000, 128000, 160000, 192000, 224000, /* Layer I */
256000, 288000, 320000, 352000, 384000, 416000, 448000 },
{ 0, 32000, 48000, 56000, 64000, 80000, 96000, 112000, /* Layer II */
128000, 160000, 192000, 224000, 256000, 320000, 384000 },
{ 0, 32000, 40000, 48000, 56000, 64000, 80000, 96000, /* Layer III */
112000, 128000, 160000, 192000, 224000, 256000, 320000 },
/* MPEG-2 LSF */
{ 0, 32000, 48000, 56000, 64000, 80000, 96000, 112000, /* Layer I */
128000, 144000, 160000, 176000, 192000, 224000, 256000 },
{ 0, 8000, 16000, 24000, 32000, 40000, 48000, 56000, /* Layers */
64000, 80000, 96000, 112000, 128000, 144000, 160000 } /* II & III */
};
static
unsigned int const samplerate_table[3] = { 44100, 48000, 32000 };
static
int (*const decoder_table[3])(struct mad_stream *, struct mad_frame *) = {
mad_layer_I,
mad_layer_II,
mad_layer_III
};
/*
* NAME: header->init()
* DESCRIPTION: initialize header struct
*/
void mad_header_init(struct mad_header *header)
{
header->layer = 0;
header->mode = 0;
header->mode_extension = 0;
header->emphasis = 0;
header->bitrate = 0;
header->samplerate = 0;
header->crc_check = 0;
header->crc_target = 0;
header->flags = 0;
header->private_bits = 0;
header->duration = mad_timer_zero;
}
/*
* NAME: frame->init()
* DESCRIPTION: initialize frame struct
*/
void mad_frame_init(struct mad_frame *frame)
{
mad_header_init(&frame->header);
frame->options = 0;
frame->overlap = 0;
mad_frame_mute(frame);
}
/*
* NAME: frame->finish()
* DESCRIPTION: deallocate any dynamic memory associated with frame
*/
void mad_frame_finish(struct mad_frame *frame)
{
mad_header_finish(&frame->header);
if (frame->overlap) {
free(frame->overlap);
frame->overlap = 0;
}
}
/*
* NAME: decode_header()
* DESCRIPTION: read header data and following CRC word
*/
static
int decode_header(struct mad_header *header, struct mad_stream *stream)
{
unsigned int index;
header->flags = 0;
header->private_bits = 0;
/* header() */
/* syncword */
mad_bit_skip(&stream->ptr, 11);
/* MPEG 2.5 indicator (really part of syncword) */
if (mad_bit_read(&stream->ptr, 1) == 0)
header->flags |= MAD_FLAG_MPEG_2_5_EXT;
/* ID */
if (mad_bit_read(&stream->ptr, 1) == 0)
header->flags |= MAD_FLAG_LSF_EXT;
else if (header->flags & MAD_FLAG_MPEG_2_5_EXT) {
stream->error = MAD_ERROR_LOSTSYNC;
return -1;
}
/* layer */
index = 4 - mad_bit_read(&stream->ptr, 2);
if (index == 4) {
stream->error = MAD_ERROR_BADLAYER;
return -1;
}
header->layer = index;
/* protection_bit */
if (mad_bit_read(&stream->ptr, 1) == 0) {
header->flags |= MAD_FLAG_PROTECTION;
header->crc_check = mad_bit_crc(stream->ptr, 16, 0xffff);
}
/* bitrate_index */
index = mad_bit_read(&stream->ptr, 4);
if (index == 15) {
stream->error = MAD_ERROR_BADBITRATE;
return -1;
}
if (header->flags & MAD_FLAG_LSF_EXT)
header->bitrate = bitrate_table[3 + (header->layer >> 1)][index];
else
header->bitrate = bitrate_table[header->layer - 1][index];
/* sampling_frequency */
index = mad_bit_read(&stream->ptr, 2);
if (index == 3) {
stream->error = MAD_ERROR_BADSAMPLERATE;
return -1;
}
header->samplerate = samplerate_table[index];
if (header->flags & MAD_FLAG_LSF_EXT) {
header->samplerate /= 2;
if (header->flags & MAD_FLAG_MPEG_2_5_EXT)
header->samplerate /= 2;
}
/* padding_bit */
if (mad_bit_read(&stream->ptr, 1))
header->flags |= MAD_FLAG_PADDING;
/* private_bit */
if (mad_bit_read(&stream->ptr, 1))
header->private_bits |= MAD_PRIVATE_HEADER;
/* mode */
header->mode = 3 - mad_bit_read(&stream->ptr, 2);
/* mode_extension */
header->mode_extension = mad_bit_read(&stream->ptr, 2);
/* copyright */
if (mad_bit_read(&stream->ptr, 1))
header->flags |= MAD_FLAG_COPYRIGHT;
/* original/copy */
if (mad_bit_read(&stream->ptr, 1))
header->flags |= MAD_FLAG_ORIGINAL;
/* emphasis */
header->emphasis = mad_bit_read(&stream->ptr, 2);
# if defined(OPT_STRICT)
/*
* ISO/IEC 11172-3 says this is a reserved emphasis value, but
* streams exist which use it anyway. Since the value is not important
* to the decoder proper, we allow it unless OPT_STRICT is defined.
*/
if (header->emphasis == MAD_EMPHASIS_RESERVED) {
stream->error = MAD_ERROR_BADEMPHASIS;
return -1;
}
# endif
/* error_check() */
/* crc_check */
if (header->flags & MAD_FLAG_PROTECTION)
header->crc_target = mad_bit_read(&stream->ptr, 16);
return 0;
}
/*
* NAME: free_bitrate()
* DESCRIPTION: attempt to discover the bitstream's free bitrate
*/
static
int free_bitrate(struct mad_stream *stream, struct mad_header const *header)
{
struct mad_bitptr keep_ptr;
unsigned long rate = 0;
unsigned int pad_slot, slots_per_frame;
unsigned char const *ptr = 0;
keep_ptr = stream->ptr;
pad_slot = (header->flags & MAD_FLAG_PADDING) ? 1 : 0;
slots_per_frame = (header->layer == MAD_LAYER_III &&
(header->flags & MAD_FLAG_LSF_EXT)) ? 72 : 144;
while (mad_stream_sync(stream) == 0) {
struct mad_stream peek_stream;
struct mad_header peek_header;
peek_stream = *stream;
peek_header = *header;
if (decode_header(&peek_header, &peek_stream) == 0 &&
peek_header.layer == header->layer &&
peek_header.samplerate == header->samplerate) {
unsigned int N;
ptr = mad_bit_nextbyte(&stream->ptr);
N = ptr - stream->this_frame;
if (header->layer == MAD_LAYER_I) {
rate = (unsigned long) header->samplerate *
(N - 4 * pad_slot + 4) / 48 / 1000;
}
else {
rate = (unsigned long) header->samplerate *
(N - pad_slot + 1) / slots_per_frame / 1000;
}
if (rate >= 8)
break;
}
mad_bit_skip(&stream->ptr, 8);
}
stream->ptr = keep_ptr;
if (rate < 8 || (header->layer == MAD_LAYER_III && rate > 640)) {
stream->error = MAD_ERROR_LOSTSYNC;
return -1;
}
stream->freerate = rate * 1000;
return 0;
}
/*
* NAME: header->decode()
* DESCRIPTION: read the next frame header from the stream
*/
int mad_header_decode(struct mad_header *header, struct mad_stream *stream)
{
register unsigned char const *ptr, *end;
unsigned int pad_slot, N;
ptr = stream->next_frame;
end = stream->bufend;
if (ptr == 0) {
stream->error = MAD_ERROR_BUFPTR;
goto fail;
}
/* stream skip */
if (stream->skiplen) {
if (!stream->sync)
ptr = stream->this_frame;
if (end - ptr < stream->skiplen) {
stream->skiplen -= end - ptr;
stream->next_frame = end;
stream->error = MAD_ERROR_BUFLEN;
goto fail;
}
ptr += stream->skiplen;
stream->skiplen = 0;
stream->sync = 1;
}
sync:
/* synchronize */
if (stream->sync) {
if (end - ptr < MAD_BUFFER_GUARD) {
stream->next_frame = ptr;
stream->error = MAD_ERROR_BUFLEN;
goto fail;
}
else if (!(ptr[0] == 0xff && (ptr[1] & 0xe0) == 0xe0)) {
/* mark point where frame sync word was expected */
stream->this_frame = ptr;
stream->next_frame = ptr + 1;
stream->error = MAD_ERROR_LOSTSYNC;
goto fail;
}
}
else {
mad_bit_init(&stream->ptr, ptr);
if (mad_stream_sync(stream) == -1) {
if (end - stream->next_frame >= MAD_BUFFER_GUARD)
stream->next_frame = end - MAD_BUFFER_GUARD;
stream->error = MAD_ERROR_BUFLEN;
goto fail;
}
ptr = mad_bit_nextbyte(&stream->ptr);
}
/* begin processing */
stream->this_frame = ptr;
stream->next_frame = ptr + 1; /* possibly bogus sync word */
mad_bit_init(&stream->ptr, stream->this_frame);
if (decode_header(header, stream) == -1)
goto fail;
/* calculate frame duration */
mad_timer_set(&header->duration, 0,
32 * MAD_NSBSAMPLES(header), header->samplerate);
/* calculate free bit rate */
if (header->bitrate == 0) {
if ((stream->freerate == 0 || !stream->sync ||
(header->layer == MAD_LAYER_III && stream->freerate > 640000)) &&
free_bitrate(stream, header) == -1)
goto fail;
header->bitrate = stream->freerate;
header->flags |= MAD_FLAG_FREEFORMAT;
}
/* calculate beginning of next frame */
pad_slot = (header->flags & MAD_FLAG_PADDING) ? 1 : 0;
if (header->layer == MAD_LAYER_I)
N = ((12 * header->bitrate / header->samplerate) + pad_slot) * 4;
else {
unsigned int slots_per_frame;
slots_per_frame = (header->layer == MAD_LAYER_III &&
(header->flags & MAD_FLAG_LSF_EXT)) ? 72 : 144;
N = (slots_per_frame * header->bitrate / header->samplerate) + pad_slot;
}
/* verify there is enough data left in buffer to decode this frame */
if (N + MAD_BUFFER_GUARD > end - stream->this_frame) {
stream->next_frame = stream->this_frame;
stream->error = MAD_ERROR_BUFLEN;
goto fail;
}
stream->next_frame = stream->this_frame + N;
if (!stream->sync) {
/* check that a valid frame header follows this frame */
ptr = stream->next_frame;
if (!(ptr[0] == 0xff && (ptr[1] & 0xe0) == 0xe0)) {
ptr = stream->next_frame = stream->this_frame + 1;
goto sync;
}
stream->sync = 1;
}
header->flags |= MAD_FLAG_INCOMPLETE;
return 0;
fail:
stream->sync = 0;
return -1;
}
/*
* NAME: frame->decode()
* DESCRIPTION: decode a single frame from a bitstream
*/
int mad_frame_decode(struct mad_frame *frame, struct mad_stream *stream)
{
frame->options = stream->options;
/* header() */
/* error_check() */
if (!(frame->header.flags & MAD_FLAG_INCOMPLETE) &&
mad_header_decode(&frame->header, stream) == -1)
goto fail;
/* audio_data() */
frame->header.flags &= ~MAD_FLAG_INCOMPLETE;
if (decoder_table[frame->header.layer - 1](stream, frame) == -1) {
if (!MAD_RECOVERABLE(stream->error))
stream->next_frame = stream->this_frame;
goto fail;
}
/* ancillary_data() */
if (frame->header.layer != MAD_LAYER_III) {
struct mad_bitptr next_frame;
mad_bit_init(&next_frame, stream->next_frame);
stream->anc_ptr = stream->ptr;
stream->anc_bitlen = mad_bit_length(&stream->ptr, &next_frame);
mad_bit_finish(&next_frame);
}
return 0;
fail:
stream->anc_bitlen = 0;
return -1;
}
/*
* NAME: frame->mute()
* DESCRIPTION: zero all subband values so the frame becomes silent
*/
void mad_frame_mute(struct mad_frame *frame)
{
unsigned int s, sb;
for (s = 0; s < 36; ++s) {
for (sb = 0; sb < 32; ++sb) {
frame->sbsample[0][s][sb] =
frame->sbsample[1][s][sb] = 0;
}
}
if (frame->overlap) {
for (s = 0; s < 18; ++s) {
for (sb = 0; sb < 32; ++sb) {
(*frame->overlap)[0][sb][s] =
(*frame->overlap)[1][sb][s] = 0;
}
}
}
}

118
Frameworks/MAD/Files/frame.h
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@ -1,118 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: frame.h,v 1.20 2004/01/23 09:41:32 rob Exp $
*/
# ifndef LIBMAD_FRAME_H
# define LIBMAD_FRAME_H
# include "fixed.h"
# include "timer.h"
# include "stream.h"
enum mad_layer {
MAD_LAYER_I = 1, /* Layer I */
MAD_LAYER_II = 2, /* Layer II */
MAD_LAYER_III = 3 /* Layer III */
};
enum mad_mode {
MAD_MODE_SINGLE_CHANNEL = 0, /* single channel */
MAD_MODE_DUAL_CHANNEL = 1, /* dual channel */
MAD_MODE_JOINT_STEREO = 2, /* joint (MS/intensity) stereo */
MAD_MODE_STEREO = 3 /* normal LR stereo */
};
enum mad_emphasis {
MAD_EMPHASIS_NONE = 0, /* no emphasis */
MAD_EMPHASIS_50_15_US = 1, /* 50/15 microseconds emphasis */
MAD_EMPHASIS_CCITT_J_17 = 3, /* CCITT J.17 emphasis */
MAD_EMPHASIS_RESERVED = 2 /* unknown emphasis */
};
struct mad_header {
enum mad_layer layer; /* audio layer (1, 2, or 3) */
enum mad_mode mode; /* channel mode (see above) */
int mode_extension; /* additional mode info */
enum mad_emphasis emphasis; /* de-emphasis to use (see above) */
unsigned long bitrate; /* stream bitrate (bps) */
unsigned int samplerate; /* sampling frequency (Hz) */
unsigned short crc_check; /* frame CRC accumulator */
unsigned short crc_target; /* final target CRC checksum */
int flags; /* flags (see below) */
int private_bits; /* private bits (see below) */
mad_timer_t duration; /* audio playing time of frame */
};
struct mad_frame {
struct mad_header header; /* MPEG audio header */
int options; /* decoding options (from stream) */
mad_fixed_t sbsample[2][36][32]; /* synthesis subband filter samples */
mad_fixed_t (*overlap)[2][32][18]; /* Layer III block overlap data */
};
# define MAD_NCHANNELS(header) ((header)->mode ? 2 : 1)
# define MAD_NSBSAMPLES(header) \
((header)->layer == MAD_LAYER_I ? 12 : \
(((header)->layer == MAD_LAYER_III && \
((header)->flags & MAD_FLAG_LSF_EXT)) ? 18 : 36))
enum {
MAD_FLAG_NPRIVATE_III = 0x0007, /* number of Layer III private bits */
MAD_FLAG_INCOMPLETE = 0x0008, /* header but not data is decoded */
MAD_FLAG_PROTECTION = 0x0010, /* frame has CRC protection */
MAD_FLAG_COPYRIGHT = 0x0020, /* frame is copyright */
MAD_FLAG_ORIGINAL = 0x0040, /* frame is original (else copy) */
MAD_FLAG_PADDING = 0x0080, /* frame has additional slot */
MAD_FLAG_I_STEREO = 0x0100, /* uses intensity joint stereo */
MAD_FLAG_MS_STEREO = 0x0200, /* uses middle/side joint stereo */
MAD_FLAG_FREEFORMAT = 0x0400, /* uses free format bitrate */
MAD_FLAG_LSF_EXT = 0x1000, /* lower sampling freq. extension */
MAD_FLAG_MC_EXT = 0x2000, /* multichannel audio extension */
MAD_FLAG_MPEG_2_5_EXT = 0x4000 /* MPEG 2.5 (unofficial) extension */
};
enum {
MAD_PRIVATE_HEADER = 0x0100, /* header private bit */
MAD_PRIVATE_III = 0x001f /* Layer III private bits (up to 5) */
};
void mad_header_init(struct mad_header *);
# define mad_header_finish(header) /* nothing */
int mad_header_decode(struct mad_header *, struct mad_stream *);
void mad_frame_init(struct mad_frame *);
void mad_frame_finish(struct mad_frame *);
int mad_frame_decode(struct mad_frame *, struct mad_stream *);
void mad_frame_mute(struct mad_frame *);
# endif

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Frameworks/MAD/Files/global.h
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/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: global.h,v 1.11 2004/01/23 09:41:32 rob Exp $
*/
# ifndef LIBMAD_GLOBAL_H
# define LIBMAD_GLOBAL_H
/* conditional debugging */
# if defined(DEBUG) && defined(NDEBUG)
# error "cannot define both DEBUG and NDEBUG"
# endif
# if defined(DEBUG)
# include <stdio.h>
# endif
/* conditional features */
# if defined(OPT_SPEED) && defined(OPT_ACCURACY)
# error "cannot optimize for both speed and accuracy"
# endif
# if defined(OPT_SPEED) && !defined(OPT_SSO)
# define OPT_SSO
# endif
# if defined(HAVE_UNISTD_H) && defined(HAVE_WAITPID) && \
defined(HAVE_FCNTL) && defined(HAVE_PIPE) && defined(HAVE_FORK)
# define USE_ASYNC
# endif
# if !defined(HAVE_ASSERT_H)
# if defined(NDEBUG)
# define assert(x) /* nothing */
# else
# define assert(x) do { if (!(x)) abort(); } while (0)
# endif
# endif
# endif

3109
Frameworks/MAD/Files/huffman.c
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66
Frameworks/MAD/Files/huffman.h
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/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: huffman.h,v 1.11 2004/01/23 09:41:32 rob Exp $
*/
# ifndef LIBMAD_HUFFMAN_H
# define LIBMAD_HUFFMAN_H
union huffquad {
struct {
unsigned short final : 1;
unsigned short bits : 3;
unsigned short offset : 12;
} ptr;
struct {
unsigned short final : 1;
unsigned short hlen : 3;
unsigned short v : 1;
unsigned short w : 1;
unsigned short x : 1;
unsigned short y : 1;
} value;
unsigned short final : 1;
};
union huffpair {
struct {
unsigned short final : 1;
unsigned short bits : 3;
unsigned short offset : 12;
} ptr;
struct {
unsigned short final : 1;
unsigned short hlen : 3;
unsigned short x : 4;
unsigned short y : 4;
} value;
unsigned short final : 1;
};
struct hufftable {
union huffpair const *table;
unsigned short linbits;
unsigned short startbits;
};
extern union huffquad const *const mad_huff_quad_table[2];
extern struct hufftable const mad_huff_pair_table[32];
# endif

1000
Frameworks/MAD/Files/imdct_l_arm.S
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Frameworks/MAD/Files/imdct_s.dat
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/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: imdct_s.dat,v 1.8 2004/01/23 09:41:32 rob Exp $
*/
/* 0 */ { MAD_F(0x09bd7ca0) /* 0.608761429 */,
-MAD_F(0x0ec835e8) /* -0.923879533 */,
-MAD_F(0x0216a2a2) /* -0.130526192 */,
MAD_F(0x0fdcf549) /* 0.991444861 */,
-MAD_F(0x061f78aa) /* -0.382683432 */,
-MAD_F(0x0cb19346) /* -0.793353340 */ },
/* 6 */ { -MAD_F(0x0cb19346) /* -0.793353340 */,
MAD_F(0x061f78aa) /* 0.382683432 */,
MAD_F(0x0fdcf549) /* 0.991444861 */,
MAD_F(0x0216a2a2) /* 0.130526192 */,
-MAD_F(0x0ec835e8) /* -0.923879533 */,
-MAD_F(0x09bd7ca0) /* -0.608761429 */ },
/* 1 */ { MAD_F(0x061f78aa) /* 0.382683432 */,
-MAD_F(0x0ec835e8) /* -0.923879533 */,
MAD_F(0x0ec835e8) /* 0.923879533 */,
-MAD_F(0x061f78aa) /* -0.382683432 */,
-MAD_F(0x061f78aa) /* -0.382683432 */,
MAD_F(0x0ec835e8) /* 0.923879533 */ },
/* 7 */ { -MAD_F(0x0ec835e8) /* -0.923879533 */,
-MAD_F(0x061f78aa) /* -0.382683432 */,
MAD_F(0x061f78aa) /* 0.382683432 */,
MAD_F(0x0ec835e8) /* 0.923879533 */,
MAD_F(0x0ec835e8) /* 0.923879533 */,
MAD_F(0x061f78aa) /* 0.382683432 */ },
/* 2 */ { MAD_F(0x0216a2a2) /* 0.130526192 */,
-MAD_F(0x061f78aa) /* -0.382683432 */,
MAD_F(0x09bd7ca0) /* 0.608761429 */,
-MAD_F(0x0cb19346) /* -0.793353340 */,
MAD_F(0x0ec835e8) /* 0.923879533 */,
-MAD_F(0x0fdcf549) /* -0.991444861 */ },
/* 8 */ { -MAD_F(0x0fdcf549) /* -0.991444861 */,
-MAD_F(0x0ec835e8) /* -0.923879533 */,
-MAD_F(0x0cb19346) /* -0.793353340 */,
-MAD_F(0x09bd7ca0) /* -0.608761429 */,
-MAD_F(0x061f78aa) /* -0.382683432 */,
-MAD_F(0x0216a2a2) /* -0.130526192 */ }

276
Frameworks/MAD/Files/install-sh
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@ -1,276 +0,0 @@
#!/bin/sh
#
# install - install a program, script, or datafile
# This comes from X11R5 (mit/util/scripts/install.sh).
#
# Copyright 1991 by the Massachusetts Institute of Technology
#
# Permission to use, copy, modify, distribute, and sell this software and its
# documentation for any purpose is hereby granted without fee, provided that
# the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation, and that the name of M.I.T. not be used in advertising or
# publicity pertaining to distribution of the software without specific,
# written prior permission. M.I.T. makes no representations about the
# suitability of this software for any purpose. It is provided "as is"
# without express or implied warranty.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# `make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch. It can only install one file at a time, a restriction
# shared with many OS's install programs.
# set DOITPROG to echo to test this script
# Don't use :- since 4.3BSD and earlier shells don't like it.
doit="${DOITPROG-}"
# put in absolute paths if you don't have them in your path; or use env. vars.
mvprog="${MVPROG-mv}"
cpprog="${CPPROG-cp}"
chmodprog="${CHMODPROG-chmod}"
chownprog="${CHOWNPROG-chown}"
chgrpprog="${CHGRPPROG-chgrp}"
stripprog="${STRIPPROG-strip}"
rmprog="${RMPROG-rm}"
mkdirprog="${MKDIRPROG-mkdir}"
transformbasename=""
transform_arg=""
instcmd="$mvprog"
chmodcmd="$chmodprog 0755"
chowncmd=""
chgrpcmd=""
stripcmd=""
rmcmd="$rmprog -f"
mvcmd="$mvprog"
src=""
dst=""
dir_arg=""
while [ x"$1" != x ]; do
case $1 in
-c) instcmd=$cpprog
shift
continue;;
-d) dir_arg=true
shift
continue;;
-m) chmodcmd="$chmodprog $2"
shift
shift
continue;;
-o) chowncmd="$chownprog $2"
shift
shift
continue;;
-g) chgrpcmd="$chgrpprog $2"
shift
shift
continue;;
-s) stripcmd=$stripprog
shift
continue;;
-t=*) transformarg=`echo $1 | sed 's/-t=//'`
shift
continue;;
-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
shift
continue;;
*) if [ x"$src" = x ]
then
src=$1
else
# this colon is to work around a 386BSD /bin/sh bug
:
dst=$1
fi
shift
continue;;
esac
done
if [ x"$src" = x ]
then
echo "$0: no input file specified" >&2
exit 1
else
:
fi
if [ x"$dir_arg" != x ]; then
dst=$src
src=""
if [ -d "$dst" ]; then
instcmd=:
chmodcmd=""
else
instcmd=$mkdirprog
fi
else
# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
# might cause directories to be created, which would be especially bad
# if $src (and thus $dsttmp) contains '*'.
if [ -f "$src" ] || [ -d "$src" ]
then
:
else
echo "$0: $src does not exist" >&2
exit 1
fi
if [ x"$dst" = x ]
then
echo "$0: no destination specified" >&2
exit 1
else
:
fi
# If destination is a directory, append the input filename; if your system
# does not like double slashes in filenames, you may need to add some logic
if [ -d "$dst" ]
then
dst=$dst/`basename "$src"`
else
:
fi
fi
## this sed command emulates the dirname command
dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
# Make sure that the destination directory exists.
# this part is taken from Noah Friedman's mkinstalldirs script
# Skip lots of stat calls in the usual case.
if [ ! -d "$dstdir" ]; then
defaultIFS='
'
IFS="${IFS-$defaultIFS}"
oIFS=$IFS
# Some sh's can't handle IFS=/ for some reason.
IFS='%'
set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
IFS=$oIFS
pathcomp=''
while [ $# -ne 0 ] ; do
pathcomp=$pathcomp$1
shift
if [ ! -d "$pathcomp" ] ;
then
$mkdirprog "$pathcomp"
else
:
fi
pathcomp=$pathcomp/
done
fi
if [ x"$dir_arg" != x ]
then
$doit $instcmd "$dst" &&
if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
else
# If we're going to rename the final executable, determine the name now.
if [ x"$transformarg" = x ]
then
dstfile=`basename "$dst"`
else
dstfile=`basename "$dst" $transformbasename |
sed $transformarg`$transformbasename
fi
# don't allow the sed command to completely eliminate the filename
if [ x"$dstfile" = x ]
then
dstfile=`basename "$dst"`
else
:
fi
# Make a couple of temp file names in the proper directory.
dsttmp=$dstdir/#inst.$$#
rmtmp=$dstdir/#rm.$$#
# Trap to clean up temp files at exit.
trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
trap '(exit $?); exit' 1 2 13 15
# Move or copy the file name to the temp name
$doit $instcmd "$src" "$dsttmp" &&
# and set any options; do chmod last to preserve setuid bits
# If any of these fail, we abort the whole thing. If we want to
# ignore errors from any of these, just make sure not to ignore
# errors from the above "$doit $instcmd $src $dsttmp" command.
if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&
# Now remove or move aside any old file at destination location. We try this
# two ways since rm can't unlink itself on some systems and the destination
# file might be busy for other reasons. In this case, the final cleanup
# might fail but the new file should still install successfully.
{
if [ -f "$dstdir/$dstfile" ]
then
$doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
$doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
{
echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
(exit 1); exit
}
else
:
fi
} &&
# Now rename the file to the real destination.
$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
fi &&
# The final little trick to "correctly" pass the exit status to the exit trap.
{
(exit 0); exit
}

534
Frameworks/MAD/Files/layer12.c
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@ -1,534 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: layer12.c,v 1.17 2004/02/05 09:02:39 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# ifdef HAVE_LIMITS_H
# include <limits.h>
# else
# define CHAR_BIT 8
# endif
# include "fixed.h"
# include "bit.h"
# include "stream.h"
# include "frame.h"
# include "layer12.h"
/*
* scalefactor table
* used in both Layer I and Layer II decoding
*/
static
mad_fixed_t const sf_table[64] = {
# include "sf_table.dat"
};
/* --- Layer I ------------------------------------------------------------- */
/* linear scaling table */
static
mad_fixed_t const linear_table[14] = {
MAD_F(0x15555555), /* 2^2 / (2^2 - 1) == 1.33333333333333 */
MAD_F(0x12492492), /* 2^3 / (2^3 - 1) == 1.14285714285714 */
MAD_F(0x11111111), /* 2^4 / (2^4 - 1) == 1.06666666666667 */
MAD_F(0x10842108), /* 2^5 / (2^5 - 1) == 1.03225806451613 */
MAD_F(0x10410410), /* 2^6 / (2^6 - 1) == 1.01587301587302 */
MAD_F(0x10204081), /* 2^7 / (2^7 - 1) == 1.00787401574803 */
MAD_F(0x10101010), /* 2^8 / (2^8 - 1) == 1.00392156862745 */
MAD_F(0x10080402), /* 2^9 / (2^9 - 1) == 1.00195694716243 */
MAD_F(0x10040100), /* 2^10 / (2^10 - 1) == 1.00097751710655 */
MAD_F(0x10020040), /* 2^11 / (2^11 - 1) == 1.00048851978505 */
MAD_F(0x10010010), /* 2^12 / (2^12 - 1) == 1.00024420024420 */
MAD_F(0x10008004), /* 2^13 / (2^13 - 1) == 1.00012208521548 */
MAD_F(0x10004001), /* 2^14 / (2^14 - 1) == 1.00006103888177 */
MAD_F(0x10002000) /* 2^15 / (2^15 - 1) == 1.00003051850948 */
};
/*
* NAME: I_sample()
* DESCRIPTION: decode one requantized Layer I sample from a bitstream
*/
static
mad_fixed_t I_sample(struct mad_bitptr *ptr, unsigned int nb)
{
mad_fixed_t sample;
sample = mad_bit_read(ptr, nb);
/* invert most significant bit, extend sign, then scale to fixed format */
sample ^= 1 << (nb - 1);
sample |= -(sample & (1 << (nb - 1)));
sample <<= MAD_F_FRACBITS - (nb - 1);
/* requantize the sample */
/* s'' = (2^nb / (2^nb - 1)) * (s''' + 2^(-nb + 1)) */
sample += MAD_F_ONE >> (nb - 1);
return mad_f_mul(sample, linear_table[nb - 2]);
/* s' = factor * s'' */
/* (to be performed by caller) */
}
/*
* NAME: layer->I()
* DESCRIPTION: decode a single Layer I frame
*/
int mad_layer_I(struct mad_stream *stream, struct mad_frame *frame)
{
struct mad_header *header = &frame->header;
unsigned int nch, bound, ch, s, sb, nb;
unsigned char allocation[2][32], scalefactor[2][32];
nch = MAD_NCHANNELS(header);
bound = 32;
if (header->mode == MAD_MODE_JOINT_STEREO) {
header->flags |= MAD_FLAG_I_STEREO;
bound = 4 + header->mode_extension * 4;
}
/* check CRC word */
if (header->flags & MAD_FLAG_PROTECTION) {
header->crc_check =
mad_bit_crc(stream->ptr, 4 * (bound * nch + (32 - bound)),
header->crc_check);
if (header->crc_check != header->crc_target &&
!(frame->options & MAD_OPTION_IGNORECRC)) {
stream->error = MAD_ERROR_BADCRC;
return -1;
}
}
/* decode bit allocations */
for (sb = 0; sb < bound; ++sb) {
for (ch = 0; ch < nch; ++ch) {
nb = mad_bit_read(&stream->ptr, 4);
if (nb == 15) {
stream->error = MAD_ERROR_BADBITALLOC;
return -1;
}
allocation[ch][sb] = nb ? nb + 1 : 0;
}
}
for (sb = bound; sb < 32; ++sb) {
nb = mad_bit_read(&stream->ptr, 4);
if (nb == 15) {
stream->error = MAD_ERROR_BADBITALLOC;
return -1;
}
allocation[0][sb] =
allocation[1][sb] = nb ? nb + 1 : 0;
}
/* decode scalefactors */
for (sb = 0; sb < 32; ++sb) {
for (ch = 0; ch < nch; ++ch) {
if (allocation[ch][sb]) {
scalefactor[ch][sb] = mad_bit_read(&stream->ptr, 6);
# if defined(OPT_STRICT)
/*
* Scalefactor index 63 does not appear in Table B.1 of
* ISO/IEC 11172-3. Nonetheless, other implementations accept it,
* so we only reject it if OPT_STRICT is defined.
*/
if (scalefactor[ch][sb] == 63) {
stream->error = MAD_ERROR_BADSCALEFACTOR;
return -1;
}
# endif
}
}
}
/* decode samples */
for (s = 0; s < 12; ++s) {
for (sb = 0; sb < bound; ++sb) {
for (ch = 0; ch < nch; ++ch) {
nb = allocation[ch][sb];
frame->sbsample[ch][s][sb] = nb ?
mad_f_mul(I_sample(&stream->ptr, nb),
sf_table[scalefactor[ch][sb]]) : 0;
}
}
for (sb = bound; sb < 32; ++sb) {
if ((nb = allocation[0][sb])) {
mad_fixed_t sample;
sample = I_sample(&stream->ptr, nb);
for (ch = 0; ch < nch; ++ch) {
frame->sbsample[ch][s][sb] =
mad_f_mul(sample, sf_table[scalefactor[ch][sb]]);
}
}
else {
for (ch = 0; ch < nch; ++ch)
frame->sbsample[ch][s][sb] = 0;
}
}
}
return 0;
}
/* --- Layer II ------------------------------------------------------------ */
/* possible quantization per subband table */
static
struct {
unsigned int sblimit;
unsigned char const offsets[30];
} const sbquant_table[5] = {
/* ISO/IEC 11172-3 Table B.2a */
{ 27, { 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, /* 0 */
3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0 } },
/* ISO/IEC 11172-3 Table B.2b */
{ 30, { 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, /* 1 */
3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0 } },
/* ISO/IEC 11172-3 Table B.2c */
{ 8, { 5, 5, 2, 2, 2, 2, 2, 2 } }, /* 2 */
/* ISO/IEC 11172-3 Table B.2d */
{ 12, { 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 } }, /* 3 */
/* ISO/IEC 13818-3 Table B.1 */
{ 30, { 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, /* 4 */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } }
};
/* bit allocation table */
static
struct {
unsigned short nbal;
unsigned short offset;
} const bitalloc_table[8] = {
{ 2, 0 }, /* 0 */
{ 2, 3 }, /* 1 */
{ 3, 3 }, /* 2 */
{ 3, 1 }, /* 3 */
{ 4, 2 }, /* 4 */
{ 4, 3 }, /* 5 */
{ 4, 4 }, /* 6 */
{ 4, 5 } /* 7 */
};
/* offsets into quantization class table */
static
unsigned char const offset_table[6][15] = {
{ 0, 1, 16 }, /* 0 */
{ 0, 1, 2, 3, 4, 5, 16 }, /* 1 */
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 }, /* 2 */
{ 0, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }, /* 3 */
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16 }, /* 4 */
{ 0, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 } /* 5 */
};
/* quantization class table */
static
struct quantclass {
unsigned short nlevels;
unsigned char group;
unsigned char bits;
mad_fixed_t C;
mad_fixed_t D;
} const qc_table[17] = {
# include "qc_table.dat"
};
/*
* NAME: II_samples()
* DESCRIPTION: decode three requantized Layer II samples from a bitstream
*/
static
void II_samples(struct mad_bitptr *ptr,
struct quantclass const *quantclass,
mad_fixed_t output[3])
{
unsigned int nb, s, sample[3];
if ((nb = quantclass->group)) {
unsigned int c, nlevels;
/* degrouping */
c = mad_bit_read(ptr, quantclass->bits);
nlevels = quantclass->nlevels;
for (s = 0; s < 3; ++s) {
sample[s] = c % nlevels;
c /= nlevels;
}
}
else {
nb = quantclass->bits;
for (s = 0; s < 3; ++s)
sample[s] = mad_bit_read(ptr, nb);
}
for (s = 0; s < 3; ++s) {
mad_fixed_t requantized;
/* invert most significant bit, extend sign, then scale to fixed format */
requantized = sample[s] ^ (1 << (nb - 1));
requantized |= -(requantized & (1 << (nb - 1)));
requantized <<= MAD_F_FRACBITS - (nb - 1);
/* requantize the sample */
/* s'' = C * (s''' + D) */
output[s] = mad_f_mul(requantized + quantclass->D, quantclass->C);
/* s' = factor * s'' */
/* (to be performed by caller) */
}
}
/*
* NAME: layer->II()
* DESCRIPTION: decode a single Layer II frame
*/
int mad_layer_II(struct mad_stream *stream, struct mad_frame *frame)
{
struct mad_header *header = &frame->header;
struct mad_bitptr start;
unsigned int index, sblimit, nbal, nch, bound, gr, ch, s, sb;
unsigned char const *offsets;
unsigned char allocation[2][32], scfsi[2][32], scalefactor[2][32][3];
mad_fixed_t samples[3];
nch = MAD_NCHANNELS(header);
if (header->flags & MAD_FLAG_LSF_EXT)
index = 4;
else if (header->flags & MAD_FLAG_FREEFORMAT)
goto freeformat;
else {
unsigned long bitrate_per_channel;
bitrate_per_channel = header->bitrate;
if (nch == 2) {
bitrate_per_channel /= 2;
# if defined(OPT_STRICT)
/*
* ISO/IEC 11172-3 allows only single channel mode for 32, 48, 56, and
* 80 kbps bitrates in Layer II, but some encoders ignore this
* restriction. We enforce it if OPT_STRICT is defined.
*/
if (bitrate_per_channel <= 28000 || bitrate_per_channel == 40000) {
stream->error = MAD_ERROR_BADMODE;
return -1;
}
# endif
}
else { /* nch == 1 */
if (bitrate_per_channel > 192000) {
/*
* ISO/IEC 11172-3 does not allow single channel mode for 224, 256,
* 320, or 384 kbps bitrates in Layer II.
*/
stream->error = MAD_ERROR_BADMODE;
return -1;
}
}
if (bitrate_per_channel <= 48000)
index = (header->samplerate == 32000) ? 3 : 2;
else if (bitrate_per_channel <= 80000)
index = 0;
else {
freeformat:
index = (header->samplerate == 48000) ? 0 : 1;
}
}
sblimit = sbquant_table[index].sblimit;
offsets = sbquant_table[index].offsets;
bound = 32;
if (header->mode == MAD_MODE_JOINT_STEREO) {
header->flags |= MAD_FLAG_I_STEREO;
bound = 4 + header->mode_extension * 4;
}
if (bound > sblimit)
bound = sblimit;
start = stream->ptr;
/* decode bit allocations */
for (sb = 0; sb < bound; ++sb) {
nbal = bitalloc_table[offsets[sb]].nbal;
for (ch = 0; ch < nch; ++ch)
allocation[ch][sb] = mad_bit_read(&stream->ptr, nbal);
}
for (sb = bound; sb < sblimit; ++sb) {
nbal = bitalloc_table[offsets[sb]].nbal;
allocation[0][sb] =
allocation[1][sb] = mad_bit_read(&stream->ptr, nbal);
}
/* decode scalefactor selection info */
for (sb = 0; sb < sblimit; ++sb) {
for (ch = 0; ch < nch; ++ch) {
if (allocation[ch][sb])
scfsi[ch][sb] = mad_bit_read(&stream->ptr, 2);
}
}
/* check CRC word */
if (header->flags & MAD_FLAG_PROTECTION) {
header->crc_check =
mad_bit_crc(start, mad_bit_length(&start, &stream->ptr),
header->crc_check);
if (header->crc_check != header->crc_target &&
!(frame->options & MAD_OPTION_IGNORECRC)) {
stream->error = MAD_ERROR_BADCRC;
return -1;
}
}
/* decode scalefactors */
for (sb = 0; sb < sblimit; ++sb) {
for (ch = 0; ch < nch; ++ch) {
if (allocation[ch][sb]) {
scalefactor[ch][sb][0] = mad_bit_read(&stream->ptr, 6);
switch (scfsi[ch][sb]) {
case 2:
scalefactor[ch][sb][2] =
scalefactor[ch][sb][1] =
scalefactor[ch][sb][0];
break;
case 0:
scalefactor[ch][sb][1] = mad_bit_read(&stream->ptr, 6);
/* fall through */
case 1:
case 3:
scalefactor[ch][sb][2] = mad_bit_read(&stream->ptr, 6);
}
if (scfsi[ch][sb] & 1)
scalefactor[ch][sb][1] = scalefactor[ch][sb][scfsi[ch][sb] - 1];
# if defined(OPT_STRICT)
/*
* Scalefactor index 63 does not appear in Table B.1 of
* ISO/IEC 11172-3. Nonetheless, other implementations accept it,
* so we only reject it if OPT_STRICT is defined.
*/
if (scalefactor[ch][sb][0] == 63 ||
scalefactor[ch][sb][1] == 63 ||
scalefactor[ch][sb][2] == 63) {
stream->error = MAD_ERROR_BADSCALEFACTOR;
return -1;
}
# endif
}
}
}
/* decode samples */
for (gr = 0; gr < 12; ++gr) {
for (sb = 0; sb < bound; ++sb) {
for (ch = 0; ch < nch; ++ch) {
if ((index = allocation[ch][sb])) {
index = offset_table[bitalloc_table[offsets[sb]].offset][index - 1];
II_samples(&stream->ptr, &qc_table[index], samples);
for (s = 0; s < 3; ++s) {
frame->sbsample[ch][3 * gr + s][sb] =
mad_f_mul(samples[s], sf_table[scalefactor[ch][sb][gr / 4]]);
}
}
else {
for (s = 0; s < 3; ++s)
frame->sbsample[ch][3 * gr + s][sb] = 0;
}
}
}
for (sb = bound; sb < sblimit; ++sb) {
if ((index = allocation[0][sb])) {
index = offset_table[bitalloc_table[offsets[sb]].offset][index - 1];
II_samples(&stream->ptr, &qc_table[index], samples);
for (ch = 0; ch < nch; ++ch) {
for (s = 0; s < 3; ++s) {
frame->sbsample[ch][3 * gr + s][sb] =
mad_f_mul(samples[s], sf_table[scalefactor[ch][sb][gr / 4]]);
}
}
}
else {
for (ch = 0; ch < nch; ++ch) {
for (s = 0; s < 3; ++s)
frame->sbsample[ch][3 * gr + s][sb] = 0;
}
}
}
for (ch = 0; ch < nch; ++ch) {
for (s = 0; s < 3; ++s) {
for (sb = sblimit; sb < 32; ++sb)
frame->sbsample[ch][3 * gr + s][sb] = 0;
}
}
}
return 0;
}

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/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: layer12.h,v 1.10 2004/01/23 09:41:32 rob Exp $
*/
# ifndef LIBMAD_LAYER12_H
# define LIBMAD_LAYER12_H
# include "stream.h"
# include "frame.h"
int mad_layer_I(struct mad_stream *, struct mad_frame *);
int mad_layer_II(struct mad_stream *, struct mad_frame *);
# endif

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/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: layer3.h,v 1.10 2004/01/23 09:41:32 rob Exp $
*/
# ifndef LIBMAD_LAYER3_H
# define LIBMAD_LAYER3_H
# include "stream.h"
# include "frame.h"
int mad_layer_III(struct mad_stream *, struct mad_frame *);
# endif

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Frameworks/MAD/Files/libmad.list.in
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# @configure_input@
# Directories...
$prefix=@prefix@
$exec_prefix=@exec_prefix@
$srcdir=@srcdir@
# Product information
%product @PACKAGE@
%copyright GPL
%vendor Underbit Technologies, Inc. <info@underbit.com>
%license @srcdir@/COPYING
%readme @srcdir@/README
%description libmad is an MPEG audio decoder library.
%version @VERSION@
%packager Giuseppe "Cowo" Corbelli <cowo@lugbs.linux.it>
%system all
f 0755 root root @libdir@/libmad.la .libs/libmad.lai
f 0644 root root @libdir@/libmad.a .libs/libmad.a
f 0644 root root @includedir@/mad.h mad.h

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Frameworks/MAD/Files/mad.h
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/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* If you would like to negotiate alternate licensing terms, you may do
* so by contacting: Underbit Technologies, Inc. <info@underbit.com>
*/
# ifdef __cplusplus
extern "C" {
# endif
#ifdef __i386__
# define FPM_INTEL
#endif
#ifdef __ppc__
# define FPM_PPC
#endif
# define SIZEOF_INT 4
# define SIZEOF_LONG 4
# define SIZEOF_LONG_LONG 8
/* Id: version.h,v 1.26 2004/01/23 09:41:33 rob Exp */
# ifndef LIBMAD_VERSION_H
# define LIBMAD_VERSION_H
# define MAD_VERSION_MAJOR 0
# define MAD_VERSION_MINOR 15
# define MAD_VERSION_PATCH 1
# define MAD_VERSION_EXTRA " (beta)"
# define MAD_VERSION_STRINGIZE(str) #str
# define MAD_VERSION_STRING(num) MAD_VERSION_STRINGIZE(num)
# define MAD_VERSION MAD_VERSION_STRING(MAD_VERSION_MAJOR) "." \
MAD_VERSION_STRING(MAD_VERSION_MINOR) "." \
MAD_VERSION_STRING(MAD_VERSION_PATCH) \
MAD_VERSION_EXTRA
# define MAD_PUBLISHYEAR "2000-2004"
# define MAD_AUTHOR "Underbit Technologies, Inc."
# define MAD_EMAIL "info@underbit.com"
extern char const mad_version[];
extern char const mad_copyright[];
extern char const mad_author[];
extern char const mad_build[];
# endif
/* Id: fixed.h,v 1.38 2004/02/17 02:02:03 rob Exp */
# ifndef LIBMAD_FIXED_H
# define LIBMAD_FIXED_H
# if SIZEOF_INT >= 4
typedef signed int mad_fixed_t;
typedef signed int mad_fixed64hi_t;
typedef unsigned int mad_fixed64lo_t;
# else
typedef signed long mad_fixed_t;
typedef signed long mad_fixed64hi_t;
typedef unsigned long mad_fixed64lo_t;
# endif
# if defined(_MSC_VER)
# define mad_fixed64_t signed __int64
# elif 1 || defined(__GNUC__)
# define mad_fixed64_t signed long long
# endif
# if defined(FPM_FLOAT)
typedef double mad_sample_t;
# else
typedef mad_fixed_t mad_sample_t;
# endif
/*
* Fixed-point format: 0xABBBBBBB
* A == whole part (sign + 3 bits)
* B == fractional part (28 bits)
*
* Values are signed two's complement, so the effective range is:
* 0x80000000 to 0x7fffffff
* -8.0 to +7.9999999962747097015380859375
*
* The smallest representable value is:
* 0x00000001 == 0.0000000037252902984619140625 (i.e. about 3.725e-9)
*
* 28 bits of fractional accuracy represent about
* 8.6 digits of decimal accuracy.
*
* Fixed-point numbers can be added or subtracted as normal
* integers, but multiplication requires shifting the 64-bit result
* from 56 fractional bits back to 28 (and rounding.)
*
* Changing the definition of MAD_F_FRACBITS is only partially
* supported, and must be done with care.
*/
# define MAD_F_FRACBITS 28
# if MAD_F_FRACBITS == 28
# define MAD_F(x) ((mad_fixed_t) (x##L))
# else
# if MAD_F_FRACBITS < 28
# warning "MAD_F_FRACBITS < 28"
# define MAD_F(x) ((mad_fixed_t) \
(((x##L) + \
(1L << (28 - MAD_F_FRACBITS - 1))) >> \
(28 - MAD_F_FRACBITS)))
# elif MAD_F_FRACBITS > 28
# error "MAD_F_FRACBITS > 28 not currently supported"
# define MAD_F(x) ((mad_fixed_t) \
((x##L) << (MAD_F_FRACBITS - 28)))
# endif
# endif
# define MAD_F_MIN ((mad_fixed_t) -0x80000000L)
# define MAD_F_MAX ((mad_fixed_t) +0x7fffffffL)
# define MAD_F_ONE MAD_F(0x10000000)
# define mad_f_tofixed(x) ((mad_fixed_t) \
((x) * (double) (1L << MAD_F_FRACBITS) + 0.5))
# define mad_f_todouble(x) ((double) \
((x) / (double) (1L << MAD_F_FRACBITS)))
# define mad_f_intpart(x) ((x) >> MAD_F_FRACBITS)
# define mad_f_fracpart(x) ((x) & ((1L << MAD_F_FRACBITS) - 1))
/* (x should be positive) */
# define mad_f_fromint(x) ((x) << MAD_F_FRACBITS)
# define mad_f_add(x, y) ((x) + (y))
# define mad_f_sub(x, y) ((x) - (y))
# if defined(FPM_FLOAT)
# error "FPM_FLOAT not yet supported"
# undef MAD_F
# define MAD_F(x) mad_f_todouble(x)
# define mad_f_mul(x, y) ((x) * (y))
# define mad_f_scale64
# undef ASO_ZEROCHECK
# elif defined(FPM_64BIT)
/*
* This version should be the most accurate if 64-bit types are supported by
* the compiler, although it may not be the most efficient.
*/
# if defined(OPT_ACCURACY)
# define mad_f_mul(x, y) \
((mad_fixed_t) \
((((mad_fixed64_t) (x) * (y)) + \
(1L << (MAD_F_SCALEBITS - 1))) >> MAD_F_SCALEBITS))
# else
# define mad_f_mul(x, y) \
((mad_fixed_t) (((mad_fixed64_t) (x) * (y)) >> MAD_F_SCALEBITS))
# endif
# define MAD_F_SCALEBITS MAD_F_FRACBITS
/* --- Intel --------------------------------------------------------------- */
# elif defined(FPM_INTEL)
# if defined(_MSC_VER)
# pragma warning(push)
# pragma warning(disable: 4035) /* no return value */
static __forceinline
mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
{
enum {
fracbits = MAD_F_FRACBITS
};
__asm {
mov eax, x
imul y
shrd eax, edx, fracbits
}
/* implicit return of eax */
}
# pragma warning(pop)
# define mad_f_mul mad_f_mul_inline
# define mad_f_scale64
# else
/*
* This Intel version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
asm ("imull %3" \
: "=a" (lo), "=d" (hi) \
: "%a" (x), "rm" (y) \
: "cc")
# if defined(OPT_ACCURACY)
/*
* This gives best accuracy but is not very fast.
*/
# define MAD_F_MLA(hi, lo, x, y) \
({ mad_fixed64hi_t __hi; \
mad_fixed64lo_t __lo; \
MAD_F_MLX(__hi, __lo, (x), (y)); \
asm ("addl %2,%0\n\t" \
"adcl %3,%1" \
: "=rm" (lo), "=rm" (hi) \
: "r" (__lo), "r" (__hi), "0" (lo), "1" (hi) \
: "cc"); \
})
# endif /* OPT_ACCURACY */
# if defined(OPT_ACCURACY)
/*
* Surprisingly, this is faster than SHRD followed by ADC.
*/
# define mad_f_scale64(hi, lo) \
({ mad_fixed64hi_t __hi_; \
mad_fixed64lo_t __lo_; \
mad_fixed_t __result; \
asm ("addl %4,%2\n\t" \
"adcl %5,%3" \
: "=rm" (__lo_), "=rm" (__hi_) \
: "0" (lo), "1" (hi), \
"ir" (1L << (MAD_F_SCALEBITS - 1)), "ir" (0) \
: "cc"); \
asm ("shrdl %3,%2,%1" \
: "=rm" (__result) \
: "0" (__lo_), "r" (__hi_), "I" (MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# elif defined(OPT_INTEL)
/*
* Alternate Intel scaling that may or may not perform better.
*/
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("shrl %3,%1\n\t" \
"shll %4,%2\n\t" \
"orl %2,%1" \
: "=rm" (__result) \
: "0" (lo), "r" (hi), \
"I" (MAD_F_SCALEBITS), "I" (32 - MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# else
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("shrdl %3,%2,%1" \
: "=rm" (__result) \
: "0" (lo), "r" (hi), "I" (MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# endif /* OPT_ACCURACY */
# define MAD_F_SCALEBITS MAD_F_FRACBITS
# endif
/* --- ARM ----------------------------------------------------------------- */
# elif defined(FPM_ARM)
/*
* This ARM V4 version is as accurate as FPM_64BIT but much faster. The
* least significant bit is properly rounded at no CPU cycle cost!
*/
# if 1
/*
* This is faster than the default implementation via MAD_F_MLX() and
* mad_f_scale64().
*/
# define mad_f_mul(x, y) \
({ mad_fixed64hi_t __hi; \
mad_fixed64lo_t __lo; \
mad_fixed_t __result; \
asm ("smull %0, %1, %3, %4\n\t" \
"movs %0, %0, lsr %5\n\t" \
"adc %2, %0, %1, lsl %6" \
: "=&r" (__lo), "=&r" (__hi), "=r" (__result) \
: "%r" (x), "r" (y), \
"M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# endif
# define MAD_F_MLX(hi, lo, x, y) \
asm ("smull %0, %1, %2, %3" \
: "=&r" (lo), "=&r" (hi) \
: "%r" (x), "r" (y))
# define MAD_F_MLA(hi, lo, x, y) \
asm ("smlal %0, %1, %2, %3" \
: "+r" (lo), "+r" (hi) \
: "%r" (x), "r" (y))
# define MAD_F_MLN(hi, lo) \
asm ("rsbs %0, %2, #0\n\t" \
"rsc %1, %3, #0" \
: "=r" (lo), "=r" (hi) \
: "0" (lo), "1" (hi) \
: "cc")
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("movs %0, %1, lsr %3\n\t" \
"adc %0, %0, %2, lsl %4" \
: "=&r" (__result) \
: "r" (lo), "r" (hi), \
"M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# define MAD_F_SCALEBITS MAD_F_FRACBITS
/* --- MIPS ---------------------------------------------------------------- */
# elif defined(FPM_MIPS)
/*
* This MIPS version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
asm ("mult %2,%3" \
: "=l" (lo), "=h" (hi) \
: "%r" (x), "r" (y))
# if defined(HAVE_MADD_ASM)
# define MAD_F_MLA(hi, lo, x, y) \
asm ("madd %2,%3" \
: "+l" (lo), "+h" (hi) \
: "%r" (x), "r" (y))
# elif defined(HAVE_MADD16_ASM)
/*
* This loses significant accuracy due to the 16-bit integer limit in the
* multiply/accumulate instruction.
*/
# define MAD_F_ML0(hi, lo, x, y) \
asm ("mult %2,%3" \
: "=l" (lo), "=h" (hi) \
: "%r" ((x) >> 12), "r" ((y) >> 16))
# define MAD_F_MLA(hi, lo, x, y) \
asm ("madd16 %2,%3" \
: "+l" (lo), "+h" (hi) \
: "%r" ((x) >> 12), "r" ((y) >> 16))
# define MAD_F_MLZ(hi, lo) ((mad_fixed_t) (lo))
# endif
# if defined(OPT_SPEED)
# define mad_f_scale64(hi, lo) \
((mad_fixed_t) ((hi) << (32 - MAD_F_SCALEBITS)))
# define MAD_F_SCALEBITS MAD_F_FRACBITS
# endif
/* --- SPARC --------------------------------------------------------------- */
# elif defined(FPM_SPARC)
/*
* This SPARC V8 version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
asm ("smul %2, %3, %0\n\t" \
"rd %%y, %1" \
: "=r" (lo), "=r" (hi) \
: "%r" (x), "rI" (y))
/* --- PowerPC ------------------------------------------------------------- */
# elif defined(FPM_PPC)
/*
* This PowerPC version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
do { \
asm ("mullw %0,%1,%2" \
: "=r" (lo) \
: "%r" (x), "r" (y)); \
asm ("mulhw %0,%1,%2" \
: "=r" (hi) \
: "%r" (x), "r" (y)); \
} \
while (0)
# if defined(OPT_ACCURACY)
/*
* This gives best accuracy but is not very fast.
*/
# define MAD_F_MLA(hi, lo, x, y) \
({ mad_fixed64hi_t __hi; \
mad_fixed64lo_t __lo; \
MAD_F_MLX(__hi, __lo, (x), (y)); \
asm ("addc %0,%2,%3\n\t" \
"adde %1,%4,%5" \
: "=r" (lo), "=r" (hi) \
: "%r" (lo), "r" (__lo), \
"%r" (hi), "r" (__hi) \
: "xer"); \
})
# endif
# if defined(OPT_ACCURACY)
/*
* This is slower than the truncating version below it.
*/
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result, __round; \
asm ("rotrwi %0,%1,%2" \
: "=r" (__result) \
: "r" (lo), "i" (MAD_F_SCALEBITS)); \
asm ("extrwi %0,%1,1,0" \
: "=r" (__round) \
: "r" (__result)); \
asm ("insrwi %0,%1,%2,0" \
: "+r" (__result) \
: "r" (hi), "i" (MAD_F_SCALEBITS)); \
asm ("add %0,%1,%2" \
: "=r" (__result) \
: "%r" (__result), "r" (__round)); \
__result; \
})
# else
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("rotrwi %0,%1,%2" \
: "=r" (__result) \
: "r" (lo), "i" (MAD_F_SCALEBITS)); \
asm ("insrwi %0,%1,%2,0" \
: "+r" (__result) \
: "r" (hi), "i" (MAD_F_SCALEBITS)); \
__result; \
})
# endif
# define MAD_F_SCALEBITS MAD_F_FRACBITS
/* --- Default ------------------------------------------------------------- */
# elif defined(FPM_DEFAULT)
/*
* This version is the most portable but it loses significant accuracy.
* Furthermore, accuracy is biased against the second argument, so care
* should be taken when ordering operands.
*
* The scale factors are constant as this is not used with SSO.
*
* Pre-rounding is required to stay within the limits of compliance.
*/
# if defined(OPT_SPEED)
# define mad_f_mul(x, y) (((x) >> 12) * ((y) >> 16))
# else
# define mad_f_mul(x, y) ((((x) + (1L << 11)) >> 12) * \
(((y) + (1L << 15)) >> 16))
# endif
/* ------------------------------------------------------------------------- */
# else
# error "no FPM selected"
# endif
/* default implementations */
# if !defined(mad_f_mul)
# define mad_f_mul(x, y) \
({ register mad_fixed64hi_t __hi; \
register mad_fixed64lo_t __lo; \
MAD_F_MLX(__hi, __lo, (x), (y)); \
mad_f_scale64(__hi, __lo); \
})
# endif
# if !defined(MAD_F_MLA)
# define MAD_F_ML0(hi, lo, x, y) ((lo) = mad_f_mul((x), (y)))
# define MAD_F_MLA(hi, lo, x, y) ((lo) += mad_f_mul((x), (y)))
# define MAD_F_MLN(hi, lo) ((lo) = -(lo))
# define MAD_F_MLZ(hi, lo) ((void) (hi), (mad_fixed_t) (lo))
# endif
# if !defined(MAD_F_ML0)
# define MAD_F_ML0(hi, lo, x, y) MAD_F_MLX((hi), (lo), (x), (y))
# endif
# if !defined(MAD_F_MLN)
# define MAD_F_MLN(hi, lo) ((hi) = ((lo) = -(lo)) ? ~(hi) : -(hi))
# endif
# if !defined(MAD_F_MLZ)
# define MAD_F_MLZ(hi, lo) mad_f_scale64((hi), (lo))
# endif
# if !defined(mad_f_scale64)
# if defined(OPT_ACCURACY)
# define mad_f_scale64(hi, lo) \
((((mad_fixed_t) \
(((hi) << (32 - (MAD_F_SCALEBITS - 1))) | \
((lo) >> (MAD_F_SCALEBITS - 1)))) + 1) >> 1)
# else
# define mad_f_scale64(hi, lo) \
((mad_fixed_t) \
(((hi) << (32 - MAD_F_SCALEBITS)) | \
((lo) >> MAD_F_SCALEBITS)))
# endif
# define MAD_F_SCALEBITS MAD_F_FRACBITS
# endif
/* C routines */
mad_fixed_t mad_f_abs(mad_fixed_t);
mad_fixed_t mad_f_div(mad_fixed_t, mad_fixed_t);
# endif
/* Id: bit.h,v 1.12 2004/01/23 09:41:32 rob Exp */
# ifndef LIBMAD_BIT_H
# define LIBMAD_BIT_H
struct mad_bitptr {
unsigned char const *byte;
unsigned short cache;
unsigned short left;
};
void mad_bit_init(struct mad_bitptr *, unsigned char const *);
# define mad_bit_finish(bitptr) /* nothing */
unsigned int mad_bit_length(struct mad_bitptr const *,
struct mad_bitptr const *);
# define mad_bit_bitsleft(bitptr) ((bitptr)->left)
unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *);
void mad_bit_skip(struct mad_bitptr *, unsigned int);
unsigned long mad_bit_read(struct mad_bitptr *, unsigned int);
void mad_bit_write(struct mad_bitptr *, unsigned int, unsigned long);
unsigned short mad_bit_crc(struct mad_bitptr, unsigned int, unsigned short);
# endif
/* Id: timer.h,v 1.16 2004/01/23 09:41:33 rob Exp */
# ifndef LIBMAD_TIMER_H
# define LIBMAD_TIMER_H
typedef struct {
signed long seconds; /* whole seconds */
unsigned long fraction; /* 1/MAD_TIMER_RESOLUTION seconds */
} mad_timer_t;
extern mad_timer_t const mad_timer_zero;
# define MAD_TIMER_RESOLUTION 352800000UL
enum mad_units {
MAD_UNITS_HOURS = -2,
MAD_UNITS_MINUTES = -1,
MAD_UNITS_SECONDS = 0,
/* metric units */
MAD_UNITS_DECISECONDS = 10,
MAD_UNITS_CENTISECONDS = 100,
MAD_UNITS_MILLISECONDS = 1000,
/* audio sample units */
MAD_UNITS_8000_HZ = 8000,
MAD_UNITS_11025_HZ = 11025,
MAD_UNITS_12000_HZ = 12000,
MAD_UNITS_16000_HZ = 16000,
MAD_UNITS_22050_HZ = 22050,
MAD_UNITS_24000_HZ = 24000,
MAD_UNITS_32000_HZ = 32000,
MAD_UNITS_44100_HZ = 44100,
MAD_UNITS_48000_HZ = 48000,
/* video frame/field units */
MAD_UNITS_24_FPS = 24,
MAD_UNITS_25_FPS = 25,
MAD_UNITS_30_FPS = 30,
MAD_UNITS_48_FPS = 48,
MAD_UNITS_50_FPS = 50,
MAD_UNITS_60_FPS = 60,
/* CD audio frames */
MAD_UNITS_75_FPS = 75,
/* video drop-frame units */
MAD_UNITS_23_976_FPS = -24,
MAD_UNITS_24_975_FPS = -25,
MAD_UNITS_29_97_FPS = -30,
MAD_UNITS_47_952_FPS = -48,
MAD_UNITS_49_95_FPS = -50,
MAD_UNITS_59_94_FPS = -60
};
# define mad_timer_reset(timer) ((void) (*(timer) = mad_timer_zero))
int mad_timer_compare(mad_timer_t, mad_timer_t);
# define mad_timer_sign(timer) mad_timer_compare((timer), mad_timer_zero)
void mad_timer_negate(mad_timer_t *);
mad_timer_t mad_timer_abs(mad_timer_t);
void mad_timer_set(mad_timer_t *, unsigned long, unsigned long, unsigned long);
void mad_timer_add(mad_timer_t *, mad_timer_t);
void mad_timer_multiply(mad_timer_t *, signed long);
signed long mad_timer_count(mad_timer_t, enum mad_units);
unsigned long mad_timer_fraction(mad_timer_t, unsigned long);
void mad_timer_string(mad_timer_t, char *, char const *,
enum mad_units, enum mad_units, unsigned long);
# endif
/* Id: stream.h,v 1.20 2004/02/05 09:02:39 rob Exp */
# ifndef LIBMAD_STREAM_H
# define LIBMAD_STREAM_H
# define MAD_BUFFER_GUARD 8
# define MAD_BUFFER_MDLEN (511 + 2048 + MAD_BUFFER_GUARD)
enum mad_error {
MAD_ERROR_NONE = 0x0000, /* no error */
MAD_ERROR_BUFLEN = 0x0001, /* input buffer too small (or EOF) */
MAD_ERROR_BUFPTR = 0x0002, /* invalid (null) buffer pointer */
MAD_ERROR_NOMEM = 0x0031, /* not enough memory */
MAD_ERROR_LOSTSYNC = 0x0101, /* lost synchronization */
MAD_ERROR_BADLAYER = 0x0102, /* reserved header layer value */
MAD_ERROR_BADBITRATE = 0x0103, /* forbidden bitrate value */
MAD_ERROR_BADSAMPLERATE = 0x0104, /* reserved sample frequency value */
MAD_ERROR_BADEMPHASIS = 0x0105, /* reserved emphasis value */
MAD_ERROR_BADCRC = 0x0201, /* CRC check failed */
MAD_ERROR_BADBITALLOC = 0x0211, /* forbidden bit allocation value */
MAD_ERROR_BADSCALEFACTOR = 0x0221, /* bad scalefactor index */
MAD_ERROR_BADMODE = 0x0222, /* bad bitrate/mode combination */
MAD_ERROR_BADFRAMELEN = 0x0231, /* bad frame length */
MAD_ERROR_BADBIGVALUES = 0x0232, /* bad big_values count */
MAD_ERROR_BADBLOCKTYPE = 0x0233, /* reserved block_type */
MAD_ERROR_BADSCFSI = 0x0234, /* bad scalefactor selection info */
MAD_ERROR_BADDATAPTR = 0x0235, /* bad main_data_begin pointer */
MAD_ERROR_BADPART3LEN = 0x0236, /* bad audio data length */
MAD_ERROR_BADHUFFTABLE = 0x0237, /* bad Huffman table select */
MAD_ERROR_BADHUFFDATA = 0x0238, /* Huffman data overrun */
MAD_ERROR_BADSTEREO = 0x0239 /* incompatible block_type for JS */
};
# define MAD_RECOVERABLE(error) ((error) & 0xff00)
struct mad_stream {
unsigned char const *buffer; /* input bitstream buffer */
unsigned char const *bufend; /* end of buffer */
unsigned long skiplen; /* bytes to skip before next frame */
int sync; /* stream sync found */
unsigned long freerate; /* free bitrate (fixed) */
unsigned char const *this_frame; /* start of current frame */
unsigned char const *next_frame; /* start of next frame */
struct mad_bitptr ptr; /* current processing bit pointer */
struct mad_bitptr anc_ptr; /* ancillary bits pointer */
unsigned int anc_bitlen; /* number of ancillary bits */
unsigned char (*main_data)[MAD_BUFFER_MDLEN];
/* Layer III main_data() */
unsigned int md_len; /* bytes in main_data */
int options; /* decoding options (see below) */
enum mad_error error; /* error code (see above) */
};
enum {
MAD_OPTION_IGNORECRC = 0x0001, /* ignore CRC errors */
MAD_OPTION_HALFSAMPLERATE = 0x0002 /* generate PCM at 1/2 sample rate */
# if 0 /* not yet implemented */
MAD_OPTION_LEFTCHANNEL = 0x0010, /* decode left channel only */
MAD_OPTION_RIGHTCHANNEL = 0x0020, /* decode right channel only */
MAD_OPTION_SINGLECHANNEL = 0x0030 /* combine channels */
# endif
};
void mad_stream_init(struct mad_stream *);
void mad_stream_finish(struct mad_stream *);
# define mad_stream_options(stream, opts) \
((void) ((stream)->options = (opts)))
void mad_stream_buffer(struct mad_stream *,
unsigned char const *, unsigned long);
void mad_stream_skip(struct mad_stream *, unsigned long);
int mad_stream_sync(struct mad_stream *);
char const *mad_stream_errorstr(struct mad_stream const *);
# endif
/* Id: frame.h,v 1.20 2004/01/23 09:41:32 rob Exp */
# ifndef LIBMAD_FRAME_H
# define LIBMAD_FRAME_H
enum mad_layer {
MAD_LAYER_I = 1, /* Layer I */
MAD_LAYER_II = 2, /* Layer II */
MAD_LAYER_III = 3 /* Layer III */
};
enum mad_mode {
MAD_MODE_SINGLE_CHANNEL = 0, /* single channel */
MAD_MODE_DUAL_CHANNEL = 1, /* dual channel */
MAD_MODE_JOINT_STEREO = 2, /* joint (MS/intensity) stereo */
MAD_MODE_STEREO = 3 /* normal LR stereo */
};
enum mad_emphasis {
MAD_EMPHASIS_NONE = 0, /* no emphasis */
MAD_EMPHASIS_50_15_US = 1, /* 50/15 microseconds emphasis */
MAD_EMPHASIS_CCITT_J_17 = 3, /* CCITT J.17 emphasis */
MAD_EMPHASIS_RESERVED = 2 /* unknown emphasis */
};
struct mad_header {
enum mad_layer layer; /* audio layer (1, 2, or 3) */
enum mad_mode mode; /* channel mode (see above) */
int mode_extension; /* additional mode info */
enum mad_emphasis emphasis; /* de-emphasis to use (see above) */
unsigned long bitrate; /* stream bitrate (bps) */
unsigned int samplerate; /* sampling frequency (Hz) */
unsigned short crc_check; /* frame CRC accumulator */
unsigned short crc_target; /* final target CRC checksum */
int flags; /* flags (see below) */
int private_bits; /* private bits (see below) */
mad_timer_t duration; /* audio playing time of frame */
};
struct mad_frame {
struct mad_header header; /* MPEG audio header */
int options; /* decoding options (from stream) */
mad_fixed_t sbsample[2][36][32]; /* synthesis subband filter samples */
mad_fixed_t (*overlap)[2][32][18]; /* Layer III block overlap data */
};
# define MAD_NCHANNELS(header) ((header)->mode ? 2 : 1)
# define MAD_NSBSAMPLES(header) \
((header)->layer == MAD_LAYER_I ? 12 : \
(((header)->layer == MAD_LAYER_III && \
((header)->flags & MAD_FLAG_LSF_EXT)) ? 18 : 36))
enum {
MAD_FLAG_NPRIVATE_III = 0x0007, /* number of Layer III private bits */
MAD_FLAG_INCOMPLETE = 0x0008, /* header but not data is decoded */
MAD_FLAG_PROTECTION = 0x0010, /* frame has CRC protection */
MAD_FLAG_COPYRIGHT = 0x0020, /* frame is copyright */
MAD_FLAG_ORIGINAL = 0x0040, /* frame is original (else copy) */
MAD_FLAG_PADDING = 0x0080, /* frame has additional slot */
MAD_FLAG_I_STEREO = 0x0100, /* uses intensity joint stereo */
MAD_FLAG_MS_STEREO = 0x0200, /* uses middle/side joint stereo */
MAD_FLAG_FREEFORMAT = 0x0400, /* uses free format bitrate */
MAD_FLAG_LSF_EXT = 0x1000, /* lower sampling freq. extension */
MAD_FLAG_MC_EXT = 0x2000, /* multichannel audio extension */
MAD_FLAG_MPEG_2_5_EXT = 0x4000 /* MPEG 2.5 (unofficial) extension */
};
enum {
MAD_PRIVATE_HEADER = 0x0100, /* header private bit */
MAD_PRIVATE_III = 0x001f /* Layer III private bits (up to 5) */
};
void mad_header_init(struct mad_header *);
# define mad_header_finish(header) /* nothing */
int mad_header_decode(struct mad_header *, struct mad_stream *);
void mad_frame_init(struct mad_frame *);
void mad_frame_finish(struct mad_frame *);
int mad_frame_decode(struct mad_frame *, struct mad_stream *);
void mad_frame_mute(struct mad_frame *);
# endif
/* Id: synth.h,v 1.15 2004/01/23 09:41:33 rob Exp */
# ifndef LIBMAD_SYNTH_H
# define LIBMAD_SYNTH_H
struct mad_pcm {
unsigned int samplerate; /* sampling frequency (Hz) */
unsigned short channels; /* number of channels */
unsigned short length; /* number of samples per channel */
mad_fixed_t samples[2][1152]; /* PCM output samples [ch][sample] */
};
struct mad_synth {
mad_fixed_t filter[2][2][2][16][8]; /* polyphase filterbank outputs */
/* [ch][eo][peo][s][v] */
unsigned int phase; /* current processing phase */
struct mad_pcm pcm; /* PCM output */
};
/* single channel PCM selector */
enum {
MAD_PCM_CHANNEL_SINGLE = 0
};
/* dual channel PCM selector */
enum {
MAD_PCM_CHANNEL_DUAL_1 = 0,
MAD_PCM_CHANNEL_DUAL_2 = 1
};
/* stereo PCM selector */
enum {
MAD_PCM_CHANNEL_STEREO_LEFT = 0,
MAD_PCM_CHANNEL_STEREO_RIGHT = 1
};
void mad_synth_init(struct mad_synth *);
# define mad_synth_finish(synth) /* nothing */
void mad_synth_mute(struct mad_synth *);
void mad_synth_frame(struct mad_synth *, struct mad_frame const *);
# endif
/* Id: decoder.h,v 1.17 2004/01/23 09:41:32 rob Exp */
# ifndef LIBMAD_DECODER_H
# define LIBMAD_DECODER_H
enum mad_decoder_mode {
MAD_DECODER_MODE_SYNC = 0,
MAD_DECODER_MODE_ASYNC
};
enum mad_flow {
MAD_FLOW_CONTINUE = 0x0000, /* continue normally */
MAD_FLOW_STOP = 0x0010, /* stop decoding normally */
MAD_FLOW_BREAK = 0x0011, /* stop decoding and signal an error */
MAD_FLOW_IGNORE = 0x0020 /* ignore the current frame */
};
struct mad_decoder {
enum mad_decoder_mode mode;
int options;
struct {
long pid;
int in;
int out;
} async;
struct {
struct mad_stream stream;
struct mad_frame frame;
struct mad_synth synth;
} *sync;
void *cb_data;
enum mad_flow (*input_func)(void *, struct mad_stream *);
enum mad_flow (*header_func)(void *, struct mad_header const *);
enum mad_flow (*filter_func)(void *,
struct mad_stream const *, struct mad_frame *);
enum mad_flow (*output_func)(void *,
struct mad_header const *, struct mad_pcm *);
enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
enum mad_flow (*message_func)(void *, void *, unsigned int *);
};
void mad_decoder_init(struct mad_decoder *, void *,
enum mad_flow (*)(void *, struct mad_stream *),
enum mad_flow (*)(void *, struct mad_header const *),
enum mad_flow (*)(void *,
struct mad_stream const *,
struct mad_frame *),
enum mad_flow (*)(void *,
struct mad_header const *,
struct mad_pcm *),
enum mad_flow (*)(void *,
struct mad_stream *,
struct mad_frame *),
enum mad_flow (*)(void *, void *, unsigned int *));
int mad_decoder_finish(struct mad_decoder *);
# define mad_decoder_options(decoder, opts) \
((void) ((decoder)->options = (opts)))
int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
# endif
# ifdef __cplusplus
}
# endif

36
Frameworks/MAD/Files/mad.h.sed
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@ -1,36 +0,0 @@
#
# libmad - MPEG audio decoder library
# Copyright (C) 2000-2004 Underbit Technologies, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# $Id: mad.h.sed,v 1.9 2004/01/23 09:41:32 rob Exp $
#
/^\/\*$/{
N
s/ \* libmad - /&/
t copy
b next
: copy
g
n
s|^ \* \$\(Id: .*\) \$$|/* \1 */|p
/^ \*\/$/d
b copy
}
/^# *include "/d
: next
p

222
Frameworks/MAD/Files/minimad.c
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@ -1,222 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: minimad.c,v 1.4 2004/01/23 09:41:32 rob Exp $
*/
# include <stdio.h>
# include <unistd.h>
# include <sys/stat.h>
# include <sys/mman.h>
# include "mad.h"
/*
* This is perhaps the simplest example use of the MAD high-level API.
* Standard input is mapped into memory via mmap(), then the high-level API
* is invoked with three callbacks: input, output, and error. The output
* callback converts MAD's high-resolution PCM samples to 16 bits, then
* writes them to standard output in little-endian, stereo-interleaved
* format.
*/
static int decode(unsigned char const *, unsigned long);
int main(int argc, char *argv[])
{
struct stat stat;
void *fdm;
if (argc != 1)
return 1;
if (fstat(STDIN_FILENO, &stat) == -1 ||
stat.st_size == 0)
return 2;
fdm = mmap(0, stat.st_size, PROT_READ, MAP_SHARED, STDIN_FILENO, 0);
if (fdm == MAP_FAILED)
return 3;
decode(fdm, stat.st_size);
if (munmap(fdm, stat.st_size) == -1)
return 4;
return 0;
}
/*
* This is a private message structure. A generic pointer to this structure
* is passed to each of the callback functions. Put here any data you need
* to access from within the callbacks.
*/
struct buffer {
unsigned char const *start;
unsigned long length;
};
/*
* This is the input callback. The purpose of this callback is to (re)fill
* the stream buffer which is to be decoded. In this example, an entire file
* has been mapped into memory, so we just call mad_stream_buffer() with the
* address and length of the mapping. When this callback is called a second
* time, we are finished decoding.
*/
static
enum mad_flow input(void *data,
struct mad_stream *stream)
{
struct buffer *buffer = data;
if (!buffer->length)
return MAD_FLOW_STOP;
mad_stream_buffer(stream, buffer->start, buffer->length);
buffer->length = 0;
return MAD_FLOW_CONTINUE;
}
/*
* The following utility routine performs simple rounding, clipping, and
* scaling of MAD's high-resolution samples down to 16 bits. It does not
* perform any dithering or noise shaping, which would be recommended to
* obtain any exceptional audio quality. It is therefore not recommended to
* use this routine if high-quality output is desired.
*/
static inline
signed int scale(mad_fixed_t sample)
{
/* round */
sample += (1L << (MAD_F_FRACBITS - 16));
/* clip */
if (sample >= MAD_F_ONE)
sample = MAD_F_ONE - 1;
else if (sample < -MAD_F_ONE)
sample = -MAD_F_ONE;
/* quantize */
return sample >> (MAD_F_FRACBITS + 1 - 16);
}
/*
* This is the output callback function. It is called after each frame of
* MPEG audio data has been completely decoded. The purpose of this callback
* is to output (or play) the decoded PCM audio.
*/
static
enum mad_flow output(void *data,
struct mad_header const *header,
struct mad_pcm *pcm)
{
unsigned int nchannels, nsamples;
mad_fixed_t const *left_ch, *right_ch;
/* pcm->samplerate contains the sampling frequency */
nchannels = pcm->channels;
nsamples = pcm->length;
left_ch = pcm->samples[0];
right_ch = pcm->samples[1];
while (nsamples--) {
signed int sample;
/* output sample(s) in 16-bit signed little-endian PCM */
sample = scale(*left_ch++);
putchar((sample >> 0) & 0xff);
putchar((sample >> 8) & 0xff);
if (nchannels == 2) {
sample = scale(*right_ch++);
putchar((sample >> 0) & 0xff);
putchar((sample >> 8) & 0xff);
}
}
return MAD_FLOW_CONTINUE;
}
/*
* This is the error callback function. It is called whenever a decoding
* error occurs. The error is indicated by stream->error; the list of
* possible MAD_ERROR_* errors can be found in the mad.h (or stream.h)
* header file.
*/
static
enum mad_flow error(void *data,
struct mad_stream *stream,
struct mad_frame *frame)
{
struct buffer *buffer = data;
fprintf(stderr, "decoding error 0x%04x (%s) at byte offset %u\n",
stream->error, mad_stream_errorstr(stream),
stream->this_frame - buffer->start);
/* return MAD_FLOW_BREAK here to stop decoding (and propagate an error) */
return MAD_FLOW_CONTINUE;
}
/*
* This is the function called by main() above to perform all the decoding.
* It instantiates a decoder object and configures it with the input,
* output, and error callback functions above. A single call to
* mad_decoder_run() continues until a callback function returns
* MAD_FLOW_STOP (to stop decoding) or MAD_FLOW_BREAK (to stop decoding and
* signal an error).
*/
static
int decode(unsigned char const *start, unsigned long length)
{
struct buffer buffer;
struct mad_decoder decoder;
int result;
/* initialize our private message structure */
buffer.start = start;
buffer.length = length;
/* configure input, output, and error functions */
mad_decoder_init(&decoder, &buffer,
input, 0 /* header */, 0 /* filter */, output,
error, 0 /* message */);
/* start decoding */
result = mad_decoder_run(&decoder, MAD_DECODER_MODE_SYNC);
/* release the decoder */
mad_decoder_finish(&decoder);
return result;
}

336
Frameworks/MAD/Files/missing
View File

@ -1,336 +0,0 @@
#! /bin/sh
# Common stub for a few missing GNU programs while installing.
# Copyright (C) 1996, 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
if test $# -eq 0; then
echo 1>&2 "Try \`$0 --help' for more information"
exit 1
fi
run=:
# In the cases where this matters, `missing' is being run in the
# srcdir already.
if test -f configure.ac; then
configure_ac=configure.ac
else
configure_ac=configure.in
fi
case "$1" in
--run)
# Try to run requested program, and just exit if it succeeds.
run=
shift
"$@" && exit 0
;;
esac
# If it does not exist, or fails to run (possibly an outdated version),
# try to emulate it.
case "$1" in
-h|--h|--he|--hel|--help)
echo "\
$0 [OPTION]... PROGRAM [ARGUMENT]...
Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
error status if there is no known handling for PROGRAM.
Options:
-h, --help display this help and exit
-v, --version output version information and exit
--run try to run the given command, and emulate it if it fails
Supported PROGRAM values:
aclocal touch file \`aclocal.m4'
autoconf touch file \`configure'
autoheader touch file \`config.h.in'
automake touch all \`Makefile.in' files
bison create \`y.tab.[ch]', if possible, from existing .[ch]
flex create \`lex.yy.c', if possible, from existing .c
help2man touch the output file
lex create \`lex.yy.c', if possible, from existing .c
makeinfo touch the output file
tar try tar, gnutar, gtar, then tar without non-portable flags
yacc create \`y.tab.[ch]', if possible, from existing .[ch]"
;;
-v|--v|--ve|--ver|--vers|--versi|--versio|--version)
echo "missing 0.4 - GNU automake"
;;
-*)
echo 1>&2 "$0: Unknown \`$1' option"
echo 1>&2 "Try \`$0 --help' for more information"
exit 1
;;
aclocal*)
if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
# We have it, but it failed.
exit 1
fi
echo 1>&2 "\
WARNING: \`$1' is missing on your system. You should only need it if
you modified \`acinclude.m4' or \`${configure_ac}'. You might want
to install the \`Automake' and \`Perl' packages. Grab them from
any GNU archive site."
touch aclocal.m4
;;
autoconf)
if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
# We have it, but it failed.
exit 1
fi
echo 1>&2 "\
WARNING: \`$1' is missing on your system. You should only need it if
you modified \`${configure_ac}'. You might want to install the
\`Autoconf' and \`GNU m4' packages. Grab them from any GNU
archive site."
touch configure
;;
autoheader)
if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
# We have it, but it failed.
exit 1
fi
echo 1>&2 "\
WARNING: \`$1' is missing on your system. You should only need it if
you modified \`acconfig.h' or \`${configure_ac}'. You might want
to install the \`Autoconf' and \`GNU m4' packages. Grab them
from any GNU archive site."
files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
test -z "$files" && files="config.h"
touch_files=
for f in $files; do
case "$f" in
*:*) touch_files="$touch_files "`echo "$f" |
sed -e 's/^[^:]*://' -e 's/:.*//'`;;
*) touch_files="$touch_files $f.in";;
esac
done
touch $touch_files
;;
automake*)
if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
# We have it, but it failed.
exit 1
fi
echo 1>&2 "\
WARNING: \`$1' is missing on your system. You should only need it if
you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
You might want to install the \`Automake' and \`Perl' packages.
Grab them from any GNU archive site."
find . -type f -name Makefile.am -print |
sed 's/\.am$/.in/' |
while read f; do touch "$f"; done
;;
autom4te)
if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
# We have it, but it failed.
exit 1
fi
echo 1>&2 "\
WARNING: \`$1' is needed, and you do not seem to have it handy on your
system. You might have modified some files without having the
proper tools for further handling them.
You can get \`$1Help2man' as part of \`Autoconf' from any GNU
archive site."
file=`echo "$*" | sed -n 's/.*--output[ =]*\([^ ]*\).*/\1/p'`
test -z "$file" && file=`echo "$*" | sed -n 's/.*-o[ ]*\([^ ]*\).*/\1/p'`
if test -f "$file"; then
touch $file
else
test -z "$file" || exec >$file
echo "#! /bin/sh"
echo "# Created by GNU Automake missing as a replacement of"
echo "# $ $@"
echo "exit 0"
chmod +x $file
exit 1
fi
;;
bison|yacc)
echo 1>&2 "\
WARNING: \`$1' is missing on your system. You should only need it if
you modified a \`.y' file. You may need the \`Bison' package
in order for those modifications to take effect. You can get
\`Bison' from any GNU archive site."
rm -f y.tab.c y.tab.h
if [ $# -ne 1 ]; then
eval LASTARG="\${$#}"
case "$LASTARG" in
*.y)
SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
if [ -f "$SRCFILE" ]; then
cp "$SRCFILE" y.tab.c
fi
SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
if [ -f "$SRCFILE" ]; then
cp "$SRCFILE" y.tab.h
fi
;;
esac
fi
if [ ! -f y.tab.h ]; then
echo >y.tab.h
fi
if [ ! -f y.tab.c ]; then
echo 'main() { return 0; }' >y.tab.c
fi
;;
lex|flex)
echo 1>&2 "\
WARNING: \`$1' is missing on your system. You should only need it if
you modified a \`.l' file. You may need the \`Flex' package
in order for those modifications to take effect. You can get
\`Flex' from any GNU archive site."
rm -f lex.yy.c
if [ $# -ne 1 ]; then
eval LASTARG="\${$#}"
case "$LASTARG" in
*.l)
SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
if [ -f "$SRCFILE" ]; then
cp "$SRCFILE" lex.yy.c
fi
;;
esac
fi
if [ ! -f lex.yy.c ]; then
echo 'main() { return 0; }' >lex.yy.c
fi
;;
help2man)
if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
# We have it, but it failed.
exit 1
fi
echo 1>&2 "\
WARNING: \`$1' is missing on your system. You should only need it if
you modified a dependency of a manual page. You may need the
\`Help2man' package in order for those modifications to take
effect. You can get \`Help2man' from any GNU archive site."
file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
if test -z "$file"; then
file=`echo "$*" | sed -n 's/.*--output=\([^ ]*\).*/\1/p'`
fi
if [ -f "$file" ]; then
touch $file
else
test -z "$file" || exec >$file
echo ".ab help2man is required to generate this page"
exit 1
fi
;;
makeinfo)
if test -z "$run" && (makeinfo --version) > /dev/null 2>&1; then
# We have makeinfo, but it failed.
exit 1
fi
echo 1>&2 "\
WARNING: \`$1' is missing on your system. You should only need it if
you modified a \`.texi' or \`.texinfo' file, or any other file
indirectly affecting the aspect of the manual. The spurious
call might also be the consequence of using a buggy \`make' (AIX,
DU, IRIX). You might want to install the \`Texinfo' package or
the \`GNU make' package. Grab either from any GNU archive site."
file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
if test -z "$file"; then
file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file`
fi
touch $file
;;
tar)
shift
if test -n "$run"; then
echo 1>&2 "ERROR: \`tar' requires --run"
exit 1
fi
# We have already tried tar in the generic part.
# Look for gnutar/gtar before invocation to avoid ugly error
# messages.
if (gnutar --version > /dev/null 2>&1); then
gnutar "$@" && exit 0
fi
if (gtar --version > /dev/null 2>&1); then
gtar "$@" && exit 0
fi
firstarg="$1"
if shift; then
case "$firstarg" in
*o*)
firstarg=`echo "$firstarg" | sed s/o//`
tar "$firstarg" "$@" && exit 0
;;
esac
case "$firstarg" in
*h*)
firstarg=`echo "$firstarg" | sed s/h//`
tar "$firstarg" "$@" && exit 0
;;
esac
fi
echo 1>&2 "\
WARNING: I can't seem to be able to run \`tar' with the given arguments.
You may want to install GNU tar or Free paxutils, or check the
command line arguments."
exit 1
;;
*)
echo 1>&2 "\
WARNING: \`$1' is needed, and you do not seem to have it handy on your
system. You might have modified some files without having the
proper tools for further handling them. Check the \`README' file,
it often tells you about the needed prerequirements for installing
this package. You may also peek at any GNU archive site, in case
some other package would contain this missing \`$1' program."
exit 1
;;
esac
exit 0

111
Frameworks/MAD/Files/mkinstalldirs
View File

@ -1,111 +0,0 @@
#! /bin/sh
# mkinstalldirs --- make directory hierarchy
# Author: Noah Friedman <friedman@prep.ai.mit.edu>
# Created: 1993-05-16
# Public domain
errstatus=0
dirmode=""
usage="\
Usage: mkinstalldirs [-h] [--help] [-m mode] dir ..."
# process command line arguments
while test $# -gt 0 ; do
case $1 in
-h | --help | --h*) # -h for help
echo "$usage" 1>&2
exit 0
;;
-m) # -m PERM arg
shift
test $# -eq 0 && { echo "$usage" 1>&2; exit 1; }
dirmode=$1
shift
;;
--) # stop option processing
shift
break
;;
-*) # unknown option
echo "$usage" 1>&2
exit 1
;;
*) # first non-opt arg
break
;;
esac
done
for file
do
if test -d "$file"; then
shift
else
break
fi
done
case $# in
0) exit 0 ;;
esac
case $dirmode in
'')
if mkdir -p -- . 2>/dev/null; then
echo "mkdir -p -- $*"
exec mkdir -p -- "$@"
fi
;;
*)
if mkdir -m "$dirmode" -p -- . 2>/dev/null; then
echo "mkdir -m $dirmode -p -- $*"
exec mkdir -m "$dirmode" -p -- "$@"
fi
;;
esac
for file
do
set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
shift
pathcomp=
for d
do
pathcomp="$pathcomp$d"
case $pathcomp in
-*) pathcomp=./$pathcomp ;;
esac
if test ! -d "$pathcomp"; then
echo "mkdir $pathcomp"
mkdir "$pathcomp" || lasterr=$?
if test ! -d "$pathcomp"; then
errstatus=$lasterr
else
if test ! -z "$dirmode"; then
echo "chmod $dirmode $pathcomp"
lasterr=""
chmod "$dirmode" "$pathcomp" || lasterr=$?
if test ! -z "$lasterr"; then
errstatus=$lasterr
fi
fi
fi
fi
pathcomp="$pathcomp/"
done
done
exit $errstatus
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# End:
# mkinstalldirs ends here

24
Frameworks/MAD/Files/msvc++/Makefile.am
View File

@ -1,24 +0,0 @@
##
## libmad - MPEG audio decoder library
## Copyright (C) 2000-2004 Underbit Technologies, Inc.
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##
## $Id: Makefile.am,v 1.3 2004/01/23 09:41:33 rob Exp $
##
## Process this file with automake to produce Makefile.in
EXTRA_DIST = mad.h config.h libmad.dsp

312
Frameworks/MAD/Files/msvc++/Makefile.in
View File

@ -1,312 +0,0 @@
# Makefile.in generated by automake 1.8.2 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
@SET_MAKE@
srcdir = @srcdir@
top_srcdir = @top_srcdir@
VPATH = @srcdir@
pkgdatadir = $(datadir)/@PACKAGE@
pkglibdir = $(libdir)/@PACKAGE@
pkgincludedir = $(includedir)/@PACKAGE@
top_builddir = ..
am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
INSTALL = @INSTALL@
install_sh_DATA = $(install_sh) -c -m 644
install_sh_PROGRAM = $(install_sh) -c
install_sh_SCRIPT = $(install_sh) -c
INSTALL_HEADER = $(INSTALL_DATA)
transform = $(program_transform_name)
NORMAL_INSTALL = :
PRE_INSTALL = :
POST_INSTALL = :
NORMAL_UNINSTALL = :
PRE_UNINSTALL = :
POST_UNINSTALL = :
host_triplet = @host@
subdir = msvc++
DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
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am__aclocal_m4_deps = $(top_srcdir)/configure.ac
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130
Frameworks/MAD/Files/msvc++/config.h
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@ -1,130 +0,0 @@
/* config.h. Generated by configure. */
/* config.h.in. Generated from configure.ac by autoheader. */
/* Define to enable diagnostic debugging support. */
/* #undef DEBUG */
/* Define to enable experimental code. */
/* #undef EXPERIMENTAL */
/* Define to 1 if you have the <assert.h> header file. */
#define HAVE_ASSERT_H 1
/* Define to 1 if you have the <dlfcn.h> header file. */
/* #undef HAVE_DLFCN_H */
/* Define to 1 if you have the <errno.h> header file. */
#define HAVE_ERRNO_H 1
/* Define to 1 if you have the `fcntl' function. */
/* #undef HAVE_FCNTL */
/* Define to 1 if you have the <fcntl.h> header file. */
#define HAVE_FCNTL_H 1
/* Define to 1 if you have the `fork' function. */
/* #undef HAVE_FORK */
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the <limits.h> header file. */
#define HAVE_LIMITS_H 1
/* Define if your MIPS CPU supports a 2-operand MADD16 instruction. */
/* #undef HAVE_MADD16_ASM */
/* Define if your MIPS CPU supports a 2-operand MADD instruction. */
/* #undef HAVE_MADD_ASM */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H 1
/* Define to 1 if you have the `pipe' function. */
/* #undef HAVE_PIPE */
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H 1
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H 1
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H 1
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H 1
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
/* #undef HAVE_SYS_WAIT_H */
/* Define to 1 if you have the <unistd.h> header file. */
/* #undef HAVE_UNISTD_H */
/* Define to 1 if you have the `waitpid' function. */
/* #undef HAVE_WAITPID */
/* Define to disable debugging assertions. */
/* #undef NDEBUG */
/* Define to optimize for accuracy over speed. */
/* #undef OPT_ACCURACY */
/* Define to optimize for speed over accuracy. */
/* #undef OPT_SPEED */
/* Define to enable a fast subband synthesis approximation optimization. */
/* #undef OPT_SSO */
/* Define to influence a strict interpretation of the ISO/IEC standards, even
if this is in opposition with best accepted practices. */
/* #undef OPT_STRICT */
/* Name of package */
#define PACKAGE "libmad"
/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT "support@underbit.com"
/* Define to the full name of this package. */
#define PACKAGE_NAME "MPEG Audio Decoder"
/* Define to the full name and version of this package. */
#define PACKAGE_STRING "MPEG Audio Decoder 0.15.1b"
/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME "libmad"
/* Define to the version of this package. */
#define PACKAGE_VERSION "0.15.1b"
/* The size of a `int', as computed by sizeof. */
#define SIZEOF_INT 4
/* The size of a `long', as computed by sizeof. */
#define SIZEOF_LONG 4
/* The size of a `long long', as computed by sizeof. */
#define SIZEOF_LONG_LONG 8
/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* Version number of package */
#define VERSION "0.15.1b"
/* Define to empty if `const' does not conform to ANSI C. */
/* #undef const */
/* Define as `__inline' if that's what the C compiler calls it, or to nothing
if it is not supported. */
#define inline __inline
/* Define to `int' if <sys/types.h> does not define. */
/* #undef pid_t */

214
Frameworks/MAD/Files/msvc++/libmad.dsp
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# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** DO NOT EDIT **
# TARGTYPE "Win32 (x86) Static Library" 0x0104
CFG=libmad - Win32 Debug
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
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948
Frameworks/MAD/Files/msvc++/mad.h
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@ -1,948 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* If you would like to negotiate alternate licensing terms, you may do
* so by contacting: Underbit Technologies, Inc. <info@underbit.com>
*/
# ifdef __cplusplus
extern "C" {
# endif
# define FPM_INTEL
# define SIZEOF_INT 4
# define SIZEOF_LONG 4
# define SIZEOF_LONG_LONG 8
/* Id: version.h,v 1.24 2003/05/27 22:40:37 rob Exp */
# ifndef LIBMAD_VERSION_H
# define LIBMAD_VERSION_H
# define MAD_VERSION_MAJOR 0
# define MAD_VERSION_MINOR 15
# define MAD_VERSION_PATCH 1
# define MAD_VERSION_EXTRA " (beta)"
# define MAD_VERSION_STRINGIZE(str) #str
# define MAD_VERSION_STRING(num) MAD_VERSION_STRINGIZE(num)
# define MAD_VERSION MAD_VERSION_STRING(MAD_VERSION_MAJOR) "." \
MAD_VERSION_STRING(MAD_VERSION_MINOR) "." \
MAD_VERSION_STRING(MAD_VERSION_PATCH) \
MAD_VERSION_EXTRA
# define MAD_PUBLISHYEAR "2000-2003"
# define MAD_AUTHOR "Underbit Technologies, Inc."
# define MAD_EMAIL "info@underbit.com"
extern char const mad_version[];
extern char const mad_copyright[];
extern char const mad_author[];
extern char const mad_build[];
# endif
/* Id: fixed.h,v 1.36 2003/05/28 04:36:00 rob Exp */
# ifndef LIBMAD_FIXED_H
# define LIBMAD_FIXED_H
# if SIZEOF_INT >= 4
typedef signed int mad_fixed_t;
typedef signed int mad_fixed64hi_t;
typedef unsigned int mad_fixed64lo_t;
# else
typedef signed long mad_fixed_t;
typedef signed long mad_fixed64hi_t;
typedef unsigned long mad_fixed64lo_t;
# endif
# if defined(_MSC_VER)
# define mad_fixed64_t signed __int64
# elif 1 || defined(__GNUC__)
# define mad_fixed64_t signed long long
# endif
# if defined(FPM_FLOAT)
typedef double mad_sample_t;
# else
typedef mad_fixed_t mad_sample_t;
# endif
/*
* Fixed-point format: 0xABBBBBBB
* A == whole part (sign + 3 bits)
* B == fractional part (28 bits)
*
* Values are signed two's complement, so the effective range is:
* 0x80000000 to 0x7fffffff
* -8.0 to +7.9999999962747097015380859375
*
* The smallest representable value is:
* 0x00000001 == 0.0000000037252902984619140625 (i.e. about 3.725e-9)
*
* 28 bits of fractional accuracy represent about
* 8.6 digits of decimal accuracy.
*
* Fixed-point numbers can be added or subtracted as normal
* integers, but multiplication requires shifting the 64-bit result
* from 56 fractional bits back to 28 (and rounding.)
*
* Changing the definition of MAD_F_FRACBITS is only partially
* supported, and must be done with care.
*/
# define MAD_F_FRACBITS 28
# if MAD_F_FRACBITS == 28
# define MAD_F(x) ((mad_fixed_t) (x##L))
# else
# if MAD_F_FRACBITS < 28
# warning "MAD_F_FRACBITS < 28"
# define MAD_F(x) ((mad_fixed_t) \
(((x##L) + \
(1L << (28 - MAD_F_FRACBITS - 1))) >> \
(28 - MAD_F_FRACBITS)))
# elif MAD_F_FRACBITS > 28
# error "MAD_F_FRACBITS > 28 not currently supported"
# define MAD_F(x) ((mad_fixed_t) \
((x##L) << (MAD_F_FRACBITS - 28)))
# endif
# endif
# define MAD_F_MIN ((mad_fixed_t) -0x80000000L)
# define MAD_F_MAX ((mad_fixed_t) +0x7fffffffL)
# define MAD_F_ONE MAD_F(0x10000000)
# define mad_f_tofixed(x) ((mad_fixed_t) \
((x) * (double) (1L << MAD_F_FRACBITS) + 0.5))
# define mad_f_todouble(x) ((double) \
((x) / (double) (1L << MAD_F_FRACBITS)))
# define mad_f_intpart(x) ((x) >> MAD_F_FRACBITS)
# define mad_f_fracpart(x) ((x) & ((1L << MAD_F_FRACBITS) - 1))
/* (x should be positive) */
# define mad_f_fromint(x) ((x) << MAD_F_FRACBITS)
# define mad_f_add(x, y) ((x) + (y))
# define mad_f_sub(x, y) ((x) - (y))
# if defined(FPM_FLOAT)
# error "FPM_FLOAT not yet supported"
# undef MAD_F
# define MAD_F(x) mad_f_todouble(x)
# define mad_f_mul(x, y) ((x) * (y))
# define mad_f_scale64
# undef ASO_ZEROCHECK
# elif defined(FPM_64BIT)
/*
* This version should be the most accurate if 64-bit types are supported by
* the compiler, although it may not be the most efficient.
*/
# if defined(OPT_ACCURACY)
# define mad_f_mul(x, y) \
((mad_fixed_t) \
((((mad_fixed64_t) (x) * (y)) + \
(1L << (MAD_F_SCALEBITS - 1))) >> MAD_F_SCALEBITS))
# else
# define mad_f_mul(x, y) \
((mad_fixed_t) (((mad_fixed64_t) (x) * (y)) >> MAD_F_SCALEBITS))
# endif
# define MAD_F_SCALEBITS MAD_F_FRACBITS
/* --- Intel --------------------------------------------------------------- */
# elif defined(FPM_INTEL)
# if defined(_MSC_VER)
# pragma warning(push)
# pragma warning(disable: 4035) /* no return value */
static __forceinline
mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
{
enum {
fracbits = MAD_F_FRACBITS
};
__asm {
mov eax, x
imul y
shrd eax, edx, fracbits
}
/* implicit return of eax */
}
# pragma warning(pop)
# define mad_f_mul mad_f_mul_inline
# define mad_f_scale64
# else
/*
* This Intel version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
asm ("imull %3" \
: "=a" (lo), "=d" (hi) \
: "%a" (x), "rm" (y) \
: "cc")
# if defined(OPT_ACCURACY)
/*
* This gives best accuracy but is not very fast.
*/
# define MAD_F_MLA(hi, lo, x, y) \
({ mad_fixed64hi_t __hi; \
mad_fixed64lo_t __lo; \
MAD_F_MLX(__hi, __lo, (x), (y)); \
asm ("addl %2,%0\n\t" \
"adcl %3,%1" \
: "=rm" (lo), "=rm" (hi) \
: "r" (__lo), "r" (__hi), "0" (lo), "1" (hi) \
: "cc"); \
})
# endif /* OPT_ACCURACY */
# if defined(OPT_ACCURACY)
/*
* Surprisingly, this is faster than SHRD followed by ADC.
*/
# define mad_f_scale64(hi, lo) \
({ mad_fixed64hi_t __hi_; \
mad_fixed64lo_t __lo_; \
mad_fixed_t __result; \
asm ("addl %4,%2\n\t" \
"adcl %5,%3" \
: "=rm" (__lo_), "=rm" (__hi_) \
: "0" (lo), "1" (hi), \
"ir" (1L << (MAD_F_SCALEBITS - 1)), "ir" (0) \
: "cc"); \
asm ("shrdl %3,%2,%1" \
: "=rm" (__result) \
: "0" (__lo_), "r" (__hi_), "I" (MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# else
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("shrdl %3,%2,%1" \
: "=rm" (__result) \
: "0" (lo), "r" (hi), "I" (MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# endif /* OPT_ACCURACY */
# define MAD_F_SCALEBITS MAD_F_FRACBITS
# endif
/* --- ARM ----------------------------------------------------------------- */
# elif defined(FPM_ARM)
/*
* This ARM V4 version is as accurate as FPM_64BIT but much faster. The
* least significant bit is properly rounded at no CPU cycle cost!
*/
# if 1
/*
* This is faster than the default implementation via MAD_F_MLX() and
* mad_f_scale64().
*/
# define mad_f_mul(x, y) \
({ mad_fixed64hi_t __hi; \
mad_fixed64lo_t __lo; \
mad_fixed_t __result; \
asm ("smull %0, %1, %3, %4\n\t" \
"movs %0, %0, lsr %5\n\t" \
"adc %2, %0, %1, lsl %6" \
: "=&r" (__lo), "=&r" (__hi), "=r" (__result) \
: "%r" (x), "r" (y), \
"M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# endif
# define MAD_F_MLX(hi, lo, x, y) \
asm ("smull %0, %1, %2, %3" \
: "=&r" (lo), "=&r" (hi) \
: "%r" (x), "r" (y))
# define MAD_F_MLA(hi, lo, x, y) \
asm ("smlal %0, %1, %2, %3" \
: "+r" (lo), "+r" (hi) \
: "%r" (x), "r" (y))
# define MAD_F_MLN(hi, lo) \
asm ("rsbs %0, %2, #0\n\t" \
"rsc %1, %3, #0" \
: "=r" (lo), "=r" (hi) \
: "0" (lo), "1" (hi) \
: "cc")
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("movs %0, %1, lsr %3\n\t" \
"adc %0, %0, %2, lsl %4" \
: "=&r" (__result) \
: "r" (lo), "r" (hi), \
"M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \
: "cc"); \
__result; \
})
# define MAD_F_SCALEBITS MAD_F_FRACBITS
/* --- MIPS ---------------------------------------------------------------- */
# elif defined(FPM_MIPS)
/*
* This MIPS version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
asm ("mult %2,%3" \
: "=l" (lo), "=h" (hi) \
: "%r" (x), "r" (y))
# if defined(HAVE_MADD_ASM)
# define MAD_F_MLA(hi, lo, x, y) \
asm ("madd %2,%3" \
: "+l" (lo), "+h" (hi) \
: "%r" (x), "r" (y))
# elif defined(HAVE_MADD16_ASM)
/*
* This loses significant accuracy due to the 16-bit integer limit in the
* multiply/accumulate instruction.
*/
# define MAD_F_ML0(hi, lo, x, y) \
asm ("mult %2,%3" \
: "=l" (lo), "=h" (hi) \
: "%r" ((x) >> 12), "r" ((y) >> 16))
# define MAD_F_MLA(hi, lo, x, y) \
asm ("madd16 %2,%3" \
: "+l" (lo), "+h" (hi) \
: "%r" ((x) >> 12), "r" ((y) >> 16))
# define MAD_F_MLZ(hi, lo) ((mad_fixed_t) (lo))
# endif
# if defined(OPT_SPEED)
# define mad_f_scale64(hi, lo) \
((mad_fixed_t) ((hi) << (32 - MAD_F_SCALEBITS)))
# define MAD_F_SCALEBITS MAD_F_FRACBITS
# endif
/* --- SPARC --------------------------------------------------------------- */
# elif defined(FPM_SPARC)
/*
* This SPARC V8 version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
asm ("smul %2, %3, %0\n\t" \
"rd %%y, %1" \
: "=r" (lo), "=r" (hi) \
: "%r" (x), "rI" (y))
/* --- PowerPC ------------------------------------------------------------- */
# elif defined(FPM_PPC)
/*
* This PowerPC version is fast and accurate; the disposition of the least
* significant bit depends on OPT_ACCURACY via mad_f_scale64().
*/
# define MAD_F_MLX(hi, lo, x, y) \
do { \
asm ("mullw %0,%1,%2" \
: "=r" (lo) \
: "%r" (x), "r" (y)); \
asm ("mulhw %0,%1,%2" \
: "=r" (hi) \
: "%r" (x), "r" (y)); \
} \
while (0)
# if defined(OPT_ACCURACY)
/*
* This gives best accuracy but is not very fast.
*/
# define MAD_F_MLA(hi, lo, x, y) \
({ mad_fixed64hi_t __hi; \
mad_fixed64lo_t __lo; \
MAD_F_MLX(__hi, __lo, (x), (y)); \
asm ("addc %0,%2,%3\n\t" \
"adde %1,%4,%5" \
: "=r" (lo), "=r" (hi) \
: "%r" (lo), "r" (__lo), \
"%r" (hi), "r" (__hi) \
: "xer"); \
})
# endif
# if defined(OPT_ACCURACY)
/*
* This is slower than the truncating version below it.
*/
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result, __round; \
asm ("rotrwi %0,%1,%2" \
: "=r" (__result) \
: "r" (lo), "i" (MAD_F_SCALEBITS)); \
asm ("extrwi %0,%1,1,0" \
: "=r" (__round) \
: "r" (__result)); \
asm ("insrwi %0,%1,%2,0" \
: "+r" (__result) \
: "r" (hi), "i" (MAD_F_SCALEBITS)); \
asm ("add %0,%1,%2" \
: "=r" (__result) \
: "%r" (__result), "r" (__round)); \
__result; \
})
# else
# define mad_f_scale64(hi, lo) \
({ mad_fixed_t __result; \
asm ("rotrwi %0,%1,%2" \
: "=r" (__result) \
: "r" (lo), "i" (MAD_F_SCALEBITS)); \
asm ("insrwi %0,%1,%2,0" \
: "+r" (__result) \
: "r" (hi), "i" (MAD_F_SCALEBITS)); \
__result; \
})
# endif
# define MAD_F_SCALEBITS MAD_F_FRACBITS
/* --- Default ------------------------------------------------------------- */
# elif defined(FPM_DEFAULT)
/*
* This version is the most portable but it loses significant accuracy.
* Furthermore, accuracy is biased against the second argument, so care
* should be taken when ordering operands.
*
* The scale factors are constant as this is not used with SSO.
*
* Pre-rounding is required to stay within the limits of compliance.
*/
# if defined(OPT_SPEED)
# define mad_f_mul(x, y) (((x) >> 12) * ((y) >> 16))
# else
# define mad_f_mul(x, y) ((((x) + (1L << 11)) >> 12) * \
(((y) + (1L << 15)) >> 16))
# endif
/* ------------------------------------------------------------------------- */
# else
# error "no FPM selected"
# endif
/* default implementations */
# if !defined(mad_f_mul)
# define mad_f_mul(x, y) \
({ register mad_fixed64hi_t __hi; \
register mad_fixed64lo_t __lo; \
MAD_F_MLX(__hi, __lo, (x), (y)); \
mad_f_scale64(__hi, __lo); \
})
# endif
# if !defined(MAD_F_MLA)
# define MAD_F_ML0(hi, lo, x, y) ((lo) = mad_f_mul((x), (y)))
# define MAD_F_MLA(hi, lo, x, y) ((lo) += mad_f_mul((x), (y)))
# define MAD_F_MLN(hi, lo) ((lo) = -(lo))
# define MAD_F_MLZ(hi, lo) ((void) (hi), (mad_fixed_t) (lo))
# endif
# if !defined(MAD_F_ML0)
# define MAD_F_ML0(hi, lo, x, y) MAD_F_MLX((hi), (lo), (x), (y))
# endif
# if !defined(MAD_F_MLN)
# define MAD_F_MLN(hi, lo) ((hi) = ((lo) = -(lo)) ? ~(hi) : -(hi))
# endif
# if !defined(MAD_F_MLZ)
# define MAD_F_MLZ(hi, lo) mad_f_scale64((hi), (lo))
# endif
# if !defined(mad_f_scale64)
# if defined(OPT_ACCURACY)
# define mad_f_scale64(hi, lo) \
((((mad_fixed_t) \
(((hi) << (32 - (MAD_F_SCALEBITS - 1))) | \
((lo) >> (MAD_F_SCALEBITS - 1)))) + 1) >> 1)
# else
# define mad_f_scale64(hi, lo) \
((mad_fixed_t) \
(((hi) << (32 - MAD_F_SCALEBITS)) | \
((lo) >> MAD_F_SCALEBITS)))
# endif
# define MAD_F_SCALEBITS MAD_F_FRACBITS
# endif
/* C routines */
mad_fixed_t mad_f_abs(mad_fixed_t);
mad_fixed_t mad_f_div(mad_fixed_t, mad_fixed_t);
# endif
/* Id: bit.h,v 1.11 2003/05/27 22:40:36 rob Exp */
# ifndef LIBMAD_BIT_H
# define LIBMAD_BIT_H
struct mad_bitptr {
unsigned char const *byte;
unsigned short cache;
unsigned short left;
};
void mad_bit_init(struct mad_bitptr *, unsigned char const *);
# define mad_bit_finish(bitptr) /* nothing */
unsigned int mad_bit_length(struct mad_bitptr const *,
struct mad_bitptr const *);
# define mad_bit_bitsleft(bitptr) ((bitptr)->left)
unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *);
void mad_bit_skip(struct mad_bitptr *, unsigned int);
unsigned long mad_bit_read(struct mad_bitptr *, unsigned int);
void mad_bit_write(struct mad_bitptr *, unsigned int, unsigned long);
unsigned short mad_bit_crc(struct mad_bitptr, unsigned int, unsigned short);
# endif
/* Id: timer.h,v 1.15 2003/05/27 22:40:37 rob Exp */
# ifndef LIBMAD_TIMER_H
# define LIBMAD_TIMER_H
typedef struct {
signed long seconds; /* whole seconds */
unsigned long fraction; /* 1/MAD_TIMER_RESOLUTION seconds */
} mad_timer_t;
extern mad_timer_t const mad_timer_zero;
# define MAD_TIMER_RESOLUTION 352800000UL
enum mad_units {
MAD_UNITS_HOURS = -2,
MAD_UNITS_MINUTES = -1,
MAD_UNITS_SECONDS = 0,
/* metric units */
MAD_UNITS_DECISECONDS = 10,
MAD_UNITS_CENTISECONDS = 100,
MAD_UNITS_MILLISECONDS = 1000,
/* audio sample units */
MAD_UNITS_8000_HZ = 8000,
MAD_UNITS_11025_HZ = 11025,
MAD_UNITS_12000_HZ = 12000,
MAD_UNITS_16000_HZ = 16000,
MAD_UNITS_22050_HZ = 22050,
MAD_UNITS_24000_HZ = 24000,
MAD_UNITS_32000_HZ = 32000,
MAD_UNITS_44100_HZ = 44100,
MAD_UNITS_48000_HZ = 48000,
/* video frame/field units */
MAD_UNITS_24_FPS = 24,
MAD_UNITS_25_FPS = 25,
MAD_UNITS_30_FPS = 30,
MAD_UNITS_48_FPS = 48,
MAD_UNITS_50_FPS = 50,
MAD_UNITS_60_FPS = 60,
/* CD audio frames */
MAD_UNITS_75_FPS = 75,
/* video drop-frame units */
MAD_UNITS_23_976_FPS = -24,
MAD_UNITS_24_975_FPS = -25,
MAD_UNITS_29_97_FPS = -30,
MAD_UNITS_47_952_FPS = -48,
MAD_UNITS_49_95_FPS = -50,
MAD_UNITS_59_94_FPS = -60
};
# define mad_timer_reset(timer) ((void) (*(timer) = mad_timer_zero))
int mad_timer_compare(mad_timer_t, mad_timer_t);
# define mad_timer_sign(timer) mad_timer_compare((timer), mad_timer_zero)
void mad_timer_negate(mad_timer_t *);
mad_timer_t mad_timer_abs(mad_timer_t);
void mad_timer_set(mad_timer_t *, unsigned long, unsigned long, unsigned long);
void mad_timer_add(mad_timer_t *, mad_timer_t);
void mad_timer_multiply(mad_timer_t *, signed long);
signed long mad_timer_count(mad_timer_t, enum mad_units);
unsigned long mad_timer_fraction(mad_timer_t, unsigned long);
void mad_timer_string(mad_timer_t, char *, char const *,
enum mad_units, enum mad_units, unsigned long);
# endif
/* Id: stream.h,v 1.18 2003/05/27 22:40:37 rob Exp */
# ifndef LIBMAD_STREAM_H
# define LIBMAD_STREAM_H
# define MAD_BUFFER_GUARD 8
# define MAD_BUFFER_MDLEN (511 + 2048 + MAD_BUFFER_GUARD)
enum mad_error {
MAD_ERROR_NONE = 0x0000, /* no error */
MAD_ERROR_BUFLEN = 0x0001, /* input buffer too small (or EOF) */
MAD_ERROR_BUFPTR = 0x0002, /* invalid (null) buffer pointer */
MAD_ERROR_NOMEM = 0x0031, /* not enough memory */
MAD_ERROR_LOSTSYNC = 0x0101, /* lost synchronization */
MAD_ERROR_BADLAYER = 0x0102, /* reserved header layer value */
MAD_ERROR_BADBITRATE = 0x0103, /* forbidden bitrate value */
MAD_ERROR_BADSAMPLERATE = 0x0104, /* reserved sample frequency value */
MAD_ERROR_BADEMPHASIS = 0x0105, /* reserved emphasis value */
MAD_ERROR_BADCRC = 0x0201, /* CRC check failed */
MAD_ERROR_BADBITALLOC = 0x0211, /* forbidden bit allocation value */
MAD_ERROR_BADSCALEFACTOR = 0x0221, /* bad scalefactor index */
MAD_ERROR_BADFRAMELEN = 0x0231, /* bad frame length */
MAD_ERROR_BADBIGVALUES = 0x0232, /* bad big_values count */
MAD_ERROR_BADBLOCKTYPE = 0x0233, /* reserved block_type */
MAD_ERROR_BADSCFSI = 0x0234, /* bad scalefactor selection info */
MAD_ERROR_BADDATAPTR = 0x0235, /* bad main_data_begin pointer */
MAD_ERROR_BADPART3LEN = 0x0236, /* bad audio data length */
MAD_ERROR_BADHUFFTABLE = 0x0237, /* bad Huffman table select */
MAD_ERROR_BADHUFFDATA = 0x0238, /* Huffman data overrun */
MAD_ERROR_BADSTEREO = 0x0239 /* incompatible block_type for JS */
};
# define MAD_RECOVERABLE(error) ((error) & 0xff00)
struct mad_stream {
unsigned char const *buffer; /* input bitstream buffer */
unsigned char const *bufend; /* end of buffer */
unsigned long skiplen; /* bytes to skip before next frame */
int sync; /* stream sync found */
unsigned long freerate; /* free bitrate (fixed) */
unsigned char const *this_frame; /* start of current frame */
unsigned char const *next_frame; /* start of next frame */
struct mad_bitptr ptr; /* current processing bit pointer */
struct mad_bitptr anc_ptr; /* ancillary bits pointer */
unsigned int anc_bitlen; /* number of ancillary bits */
unsigned char (*main_data)[MAD_BUFFER_MDLEN];
/* Layer III main_data() */
unsigned int md_len; /* bytes in main_data */
int options; /* decoding options (see below) */
enum mad_error error; /* error code (see above) */
};
enum {
MAD_OPTION_IGNORECRC = 0x0001, /* ignore CRC errors */
MAD_OPTION_HALFSAMPLERATE = 0x0002 /* generate PCM at 1/2 sample rate */
# if 0 /* not yet implemented */
MAD_OPTION_LEFTCHANNEL = 0x0010, /* decode left channel only */
MAD_OPTION_RIGHTCHANNEL = 0x0020, /* decode right channel only */
MAD_OPTION_SINGLECHANNEL = 0x0030 /* combine channels */
# endif
};
void mad_stream_init(struct mad_stream *);
void mad_stream_finish(struct mad_stream *);
# define mad_stream_options(stream, opts) \
((void) ((stream)->options = (opts)))
void mad_stream_buffer(struct mad_stream *,
unsigned char const *, unsigned long);
void mad_stream_skip(struct mad_stream *, unsigned long);
int mad_stream_sync(struct mad_stream *);
char const *mad_stream_errorstr(struct mad_stream const *);
# endif
/* Id: frame.h,v 1.19 2003/05/27 22:40:36 rob Exp */
# ifndef LIBMAD_FRAME_H
# define LIBMAD_FRAME_H
enum mad_layer {
MAD_LAYER_I = 1, /* Layer I */
MAD_LAYER_II = 2, /* Layer II */
MAD_LAYER_III = 3 /* Layer III */
};
enum mad_mode {
MAD_MODE_SINGLE_CHANNEL = 0, /* single channel */
MAD_MODE_DUAL_CHANNEL = 1, /* dual channel */
MAD_MODE_JOINT_STEREO = 2, /* joint (MS/intensity) stereo */
MAD_MODE_STEREO = 3 /* normal LR stereo */
};
enum mad_emphasis {
MAD_EMPHASIS_NONE = 0, /* no emphasis */
MAD_EMPHASIS_50_15_US = 1, /* 50/15 microseconds emphasis */
MAD_EMPHASIS_CCITT_J_17 = 3, /* CCITT J.17 emphasis */
MAD_EMPHASIS_RESERVED = 2 /* unknown emphasis */
};
struct mad_header {
enum mad_layer layer; /* audio layer (1, 2, or 3) */
enum mad_mode mode; /* channel mode (see above) */
int mode_extension; /* additional mode info */
enum mad_emphasis emphasis; /* de-emphasis to use (see above) */
unsigned long bitrate; /* stream bitrate (bps) */
unsigned int samplerate; /* sampling frequency (Hz) */
unsigned short crc_check; /* frame CRC accumulator */
unsigned short crc_target; /* final target CRC checksum */
int flags; /* flags (see below) */
int private_bits; /* private bits (see below) */
mad_timer_t duration; /* audio playing time of frame */
};
struct mad_frame {
struct mad_header header; /* MPEG audio header */
int options; /* decoding options (from stream) */
mad_fixed_t sbsample[2][36][32]; /* synthesis subband filter samples */
mad_fixed_t (*overlap)[2][32][18]; /* Layer III block overlap data */
};
# define MAD_NCHANNELS(header) ((header)->mode ? 2 : 1)
# define MAD_NSBSAMPLES(header) \
((header)->layer == MAD_LAYER_I ? 12 : \
(((header)->layer == MAD_LAYER_III && \
((header)->flags & MAD_FLAG_LSF_EXT)) ? 18 : 36))
enum {
MAD_FLAG_NPRIVATE_III = 0x0007, /* number of Layer III private bits */
MAD_FLAG_INCOMPLETE = 0x0008, /* header but not data is decoded */
MAD_FLAG_PROTECTION = 0x0010, /* frame has CRC protection */
MAD_FLAG_COPYRIGHT = 0x0020, /* frame is copyright */
MAD_FLAG_ORIGINAL = 0x0040, /* frame is original (else copy) */
MAD_FLAG_PADDING = 0x0080, /* frame has additional slot */
MAD_FLAG_I_STEREO = 0x0100, /* uses intensity joint stereo */
MAD_FLAG_MS_STEREO = 0x0200, /* uses middle/side joint stereo */
MAD_FLAG_FREEFORMAT = 0x0400, /* uses free format bitrate */
MAD_FLAG_LSF_EXT = 0x1000, /* lower sampling freq. extension */
MAD_FLAG_MC_EXT = 0x2000, /* multichannel audio extension */
MAD_FLAG_MPEG_2_5_EXT = 0x4000 /* MPEG 2.5 (unofficial) extension */
};
enum {
MAD_PRIVATE_HEADER = 0x0100, /* header private bit */
MAD_PRIVATE_III = 0x001f /* Layer III private bits (up to 5) */
};
void mad_header_init(struct mad_header *);
# define mad_header_finish(header) /* nothing */
int mad_header_decode(struct mad_header *, struct mad_stream *);
void mad_frame_init(struct mad_frame *);
void mad_frame_finish(struct mad_frame *);
int mad_frame_decode(struct mad_frame *, struct mad_stream *);
void mad_frame_mute(struct mad_frame *);
# endif
/* Id: synth.h,v 1.14 2003/05/27 22:40:37 rob Exp */
# ifndef LIBMAD_SYNTH_H
# define LIBMAD_SYNTH_H
struct mad_pcm {
unsigned int samplerate; /* sampling frequency (Hz) */
unsigned short channels; /* number of channels */
unsigned short length; /* number of samples per channel */
mad_fixed_t samples[2][1152]; /* PCM output samples [ch][sample] */
};
struct mad_synth {
mad_fixed_t filter[2][2][2][16][8]; /* polyphase filterbank outputs */
/* [ch][eo][peo][s][v] */
unsigned int phase; /* current processing phase */
struct mad_pcm pcm; /* PCM output */
};
/* single channel PCM selector */
enum {
MAD_PCM_CHANNEL_SINGLE = 0
};
/* dual channel PCM selector */
enum {
MAD_PCM_CHANNEL_DUAL_1 = 0,
MAD_PCM_CHANNEL_DUAL_2 = 1
};
/* stereo PCM selector */
enum {
MAD_PCM_CHANNEL_STEREO_LEFT = 0,
MAD_PCM_CHANNEL_STEREO_RIGHT = 1
};
void mad_synth_init(struct mad_synth *);
# define mad_synth_finish(synth) /* nothing */
void mad_synth_mute(struct mad_synth *);
void mad_synth_frame(struct mad_synth *, struct mad_frame const *);
# endif
/* Id: decoder.h,v 1.16 2003/05/27 22:40:36 rob Exp */
# ifndef LIBMAD_DECODER_H
# define LIBMAD_DECODER_H
enum mad_decoder_mode {
MAD_DECODER_MODE_SYNC = 0,
MAD_DECODER_MODE_ASYNC
};
enum mad_flow {
MAD_FLOW_CONTINUE = 0x0000, /* continue normally */
MAD_FLOW_STOP = 0x0010, /* stop decoding normally */
MAD_FLOW_BREAK = 0x0011, /* stop decoding and signal an error */
MAD_FLOW_IGNORE = 0x0020 /* ignore the current frame */
};
struct mad_decoder {
enum mad_decoder_mode mode;
int options;
struct {
long pid;
int in;
int out;
} async;
struct {
struct mad_stream stream;
struct mad_frame frame;
struct mad_synth synth;
} *sync;
void *cb_data;
enum mad_flow (*input_func)(void *, struct mad_stream *);
enum mad_flow (*header_func)(void *, struct mad_header const *);
enum mad_flow (*filter_func)(void *,
struct mad_stream const *, struct mad_frame *);
enum mad_flow (*output_func)(void *,
struct mad_header const *, struct mad_pcm *);
enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
enum mad_flow (*message_func)(void *, void *, unsigned int *);
};
void mad_decoder_init(struct mad_decoder *, void *,
enum mad_flow (*)(void *, struct mad_stream *),
enum mad_flow (*)(void *, struct mad_header const *),
enum mad_flow (*)(void *,
struct mad_stream const *,
struct mad_frame *),
enum mad_flow (*)(void *,
struct mad_header const *,
struct mad_pcm *),
enum mad_flow (*)(void *,
struct mad_stream *,
struct mad_frame *),
enum mad_flow (*)(void *, void *, unsigned int *));
int mad_decoder_finish(struct mad_decoder *);
# define mad_decoder_options(decoder, opts) \
((void) ((decoder)->options = (opts)))
int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
# endif
# ifdef __cplusplus
}
# endif

77
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@ -1,77 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: qc_table.dat,v 1.7 2004/01/23 09:41:32 rob Exp $
*/
/*
* These are the Layer II classes of quantization.
* The table is derived from Table B.4 of ISO/IEC 11172-3.
*/
{ 3, 2, 5,
MAD_F(0x15555555) /* 1.33333333333 => 1.33333333209, e 0.00000000124 */,
MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e 0.00000000000 */ },
{ 5, 3, 7,
MAD_F(0x1999999a) /* 1.60000000000 => 1.60000000149, e -0.00000000149 */,
MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e 0.00000000000 */ },
{ 7, 0, 3,
MAD_F(0x12492492) /* 1.14285714286 => 1.14285714179, e 0.00000000107 */,
MAD_F(0x04000000) /* 0.25000000000 => 0.25000000000, e 0.00000000000 */ },
{ 9, 4, 10,
MAD_F(0x1c71c71c) /* 1.77777777777 => 1.77777777612, e 0.00000000165 */,
MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e 0.00000000000 */ },
{ 15, 0, 4,
MAD_F(0x11111111) /* 1.06666666666 => 1.06666666642, e 0.00000000024 */,
MAD_F(0x02000000) /* 0.12500000000 => 0.12500000000, e 0.00000000000 */ },
{ 31, 0, 5,
MAD_F(0x10842108) /* 1.03225806452 => 1.03225806355, e 0.00000000097 */,
MAD_F(0x01000000) /* 0.06250000000 => 0.06250000000, e 0.00000000000 */ },
{ 63, 0, 6,
MAD_F(0x10410410) /* 1.01587301587 => 1.01587301493, e 0.00000000094 */,
MAD_F(0x00800000) /* 0.03125000000 => 0.03125000000, e 0.00000000000 */ },
{ 127, 0, 7,
MAD_F(0x10204081) /* 1.00787401575 => 1.00787401572, e 0.00000000003 */,
MAD_F(0x00400000) /* 0.01562500000 => 0.01562500000, e 0.00000000000 */ },
{ 255, 0, 8,
MAD_F(0x10101010) /* 1.00392156863 => 1.00392156839, e 0.00000000024 */,
MAD_F(0x00200000) /* 0.00781250000 => 0.00781250000, e 0.00000000000 */ },
{ 511, 0, 9,
MAD_F(0x10080402) /* 1.00195694716 => 1.00195694715, e 0.00000000001 */,
MAD_F(0x00100000) /* 0.00390625000 => 0.00390625000, e 0.00000000000 */ },
{ 1023, 0, 10,
MAD_F(0x10040100) /* 1.00097751711 => 1.00097751617, e 0.00000000094 */,
MAD_F(0x00080000) /* 0.00195312500 => 0.00195312500, e 0.00000000000 */ },
{ 2047, 0, 11,
MAD_F(0x10020040) /* 1.00048851979 => 1.00048851967, e 0.00000000012 */,
MAD_F(0x00040000) /* 0.00097656250 => 0.00097656250, e 0.00000000000 */ },
{ 4095, 0, 12,
MAD_F(0x10010010) /* 1.00024420024 => 1.00024420023, e 0.00000000001 */,
MAD_F(0x00020000) /* 0.00048828125 => 0.00048828125, e 0.00000000000 */ },
{ 8191, 0, 13,
MAD_F(0x10008004) /* 1.00012208522 => 1.00012208521, e 0.00000000001 */,
MAD_F(0x00010000) /* 0.00024414063 => 0.00024414062, e 0.00000000000 */ },
{ 16383, 0, 14,
MAD_F(0x10004001) /* 1.00006103888 => 1.00006103888, e -0.00000000000 */,
MAD_F(0x00008000) /* 0.00012207031 => 0.00012207031, e -0.00000000000 */ },
{ 32767, 0, 15,
MAD_F(0x10002000) /* 1.00003051851 => 1.00003051758, e 0.00000000093 */,
MAD_F(0x00004000) /* 0.00006103516 => 0.00006103516, e 0.00000000000 */ },
{ 65535, 0, 16,
MAD_F(0x10001000) /* 1.00001525902 => 1.00001525879, e 0.00000000023 */,
MAD_F(0x00002000) /* 0.00003051758 => 0.00003051758, e 0.00000000000 */ }

8747
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106
Frameworks/MAD/Files/sf_table.dat
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/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: sf_table.dat,v 1.7 2004/01/23 09:41:33 rob Exp $
*/
/*
* These are the scalefactor values for Layer I and Layer II.
* The values are from Table B.1 of ISO/IEC 11172-3.
*
* There is some error introduced by the 32-bit fixed-point representation;
* the amount of error is shown. For 16-bit PCM output, this shouldn't be
* too much of a problem.
*
* Strictly speaking, Table B.1 has only 63 entries (0-62), thus a strict
* interpretation of ISO/IEC 11172-3 would suggest that a scalefactor index of
* 63 is invalid. However, for better compatibility with current practices, we
* add a 64th entry.
*/
MAD_F(0x20000000), /* 2.000000000000 => 2.000000000000, e 0.000000000000 */
MAD_F(0x1965fea5), /* 1.587401051968 => 1.587401051074, e 0.000000000894 */
MAD_F(0x1428a2fa), /* 1.259921049895 => 1.259921051562, e -0.000000001667 */
MAD_F(0x10000000), /* 1.000000000000 => 1.000000000000, e 0.000000000000 */
MAD_F(0x0cb2ff53), /* 0.793700525984 => 0.793700527400, e -0.000000001416 */
MAD_F(0x0a14517d), /* 0.629960524947 => 0.629960525781, e -0.000000000833 */
MAD_F(0x08000000), /* 0.500000000000 => 0.500000000000, e 0.000000000000 */
MAD_F(0x06597fa9), /* 0.396850262992 => 0.396850261837, e 0.000000001155 */
MAD_F(0x050a28be), /* 0.314980262474 => 0.314980261028, e 0.000000001446 */
MAD_F(0x04000000), /* 0.250000000000 => 0.250000000000, e 0.000000000000 */
MAD_F(0x032cbfd5), /* 0.198425131496 => 0.198425132781, e -0.000000001285 */
MAD_F(0x0285145f), /* 0.157490131237 => 0.157490130514, e 0.000000000723 */
MAD_F(0x02000000), /* 0.125000000000 => 0.125000000000, e 0.000000000000 */
MAD_F(0x01965fea), /* 0.099212565748 => 0.099212564528, e 0.000000001220 */
MAD_F(0x01428a30), /* 0.078745065618 => 0.078745067120, e -0.000000001501 */
MAD_F(0x01000000), /* 0.062500000000 => 0.062500000000, e 0.000000000000 */
MAD_F(0x00cb2ff5), /* 0.049606282874 => 0.049606282264, e 0.000000000610 */
MAD_F(0x00a14518), /* 0.039372532809 => 0.039372533560, e -0.000000000751 */
MAD_F(0x00800000), /* 0.031250000000 => 0.031250000000, e 0.000000000000 */
MAD_F(0x006597fb), /* 0.024803141437 => 0.024803142995, e -0.000000001558 */
MAD_F(0x0050a28c), /* 0.019686266405 => 0.019686266780, e -0.000000000375 */
MAD_F(0x00400000), /* 0.015625000000 => 0.015625000000, e 0.000000000000 */
MAD_F(0x0032cbfd), /* 0.012401570719 => 0.012401569635, e 0.000000001084 */
MAD_F(0x00285146), /* 0.009843133202 => 0.009843133390, e -0.000000000188 */
MAD_F(0x00200000), /* 0.007812500000 => 0.007812500000, e 0.000000000000 */
MAD_F(0x001965ff), /* 0.006200785359 => 0.006200786680, e -0.000000001321 */
MAD_F(0x001428a3), /* 0.004921566601 => 0.004921566695, e -0.000000000094 */
MAD_F(0x00100000), /* 0.003906250000 => 0.003906250000, e 0.000000000000 */
MAD_F(0x000cb2ff), /* 0.003100392680 => 0.003100391477, e 0.000000001202 */
MAD_F(0x000a1451), /* 0.002460783301 => 0.002460781485, e 0.000000001816 */
MAD_F(0x00080000), /* 0.001953125000 => 0.001953125000, e 0.000000000000 */
MAD_F(0x00065980), /* 0.001550196340 => 0.001550197601, e -0.000000001262 */
MAD_F(0x00050a29), /* 0.001230391650 => 0.001230392605, e -0.000000000955 */
MAD_F(0x00040000), /* 0.000976562500 => 0.000976562500, e 0.000000000000 */
MAD_F(0x00032cc0), /* 0.000775098170 => 0.000775098801, e -0.000000000631 */
MAD_F(0x00028514), /* 0.000615195825 => 0.000615194440, e 0.000000001385 */
MAD_F(0x00020000), /* 0.000488281250 => 0.000488281250, e 0.000000000000 */
MAD_F(0x00019660), /* 0.000387549085 => 0.000387549400, e -0.000000000315 */
MAD_F(0x0001428a), /* 0.000307597913 => 0.000307597220, e 0.000000000693 */
MAD_F(0x00010000), /* 0.000244140625 => 0.000244140625, e 0.000000000000 */
MAD_F(0x0000cb30), /* 0.000193774542 => 0.000193774700, e -0.000000000158 */
MAD_F(0x0000a145), /* 0.000153798956 => 0.000153798610, e 0.000000000346 */
MAD_F(0x00008000), /* 0.000122070313 => 0.000122070313, e 0.000000000000 */
MAD_F(0x00006598), /* 0.000096887271 => 0.000096887350, e -0.000000000079 */
MAD_F(0x000050a3), /* 0.000076899478 => 0.000076901168, e -0.000000001689 */
MAD_F(0x00004000), /* 0.000061035156 => 0.000061035156, e 0.000000000000 */
MAD_F(0x000032cc), /* 0.000048443636 => 0.000048443675, e -0.000000000039 */
MAD_F(0x00002851), /* 0.000038449739 => 0.000038448721, e 0.000000001018 */
MAD_F(0x00002000), /* 0.000030517578 => 0.000030517578, e 0.000000000000 */
MAD_F(0x00001966), /* 0.000024221818 => 0.000024221838, e -0.000000000020 */
MAD_F(0x00001429), /* 0.000019224870 => 0.000019226223, e -0.000000001354 */
MAD_F(0x00001000), /* 0.000015258789 => 0.000015258789, e -0.000000000000 */
MAD_F(0x00000cb3), /* 0.000012110909 => 0.000012110919, e -0.000000000010 */
MAD_F(0x00000a14), /* 0.000009612435 => 0.000009611249, e 0.000000001186 */
MAD_F(0x00000800), /* 0.000007629395 => 0.000007629395, e -0.000000000000 */
MAD_F(0x00000659), /* 0.000006055454 => 0.000006053597, e 0.000000001858 */
MAD_F(0x0000050a), /* 0.000004806217 => 0.000004805624, e 0.000000000593 */
MAD_F(0x00000400), /* 0.000003814697 => 0.000003814697, e 0.000000000000 */
MAD_F(0x0000032d), /* 0.000003027727 => 0.000003028661, e -0.000000000934 */
MAD_F(0x00000285), /* 0.000002403109 => 0.000002402812, e 0.000000000296 */
MAD_F(0x00000200), /* 0.000001907349 => 0.000001907349, e -0.000000000000 */
MAD_F(0x00000196), /* 0.000001513864 => 0.000001512468, e 0.000000001396 */
MAD_F(0x00000143), /* 0.000001201554 => 0.000001203269, e -0.000000001714 */
MAD_F(0x00000000) /* this compatibility entry is not part of Table B.1 */

161
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@ -1,161 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: stream.c,v 1.12 2004/02/05 09:02:39 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# include <stdlib.h>
# include "bit.h"
# include "stream.h"
/*
* NAME: stream->init()
* DESCRIPTION: initialize stream struct
*/
void mad_stream_init(struct mad_stream *stream)
{
stream->buffer = 0;
stream->bufend = 0;
stream->skiplen = 0;
stream->sync = 0;
stream->freerate = 0;
stream->this_frame = 0;
stream->next_frame = 0;
mad_bit_init(&stream->ptr, 0);
mad_bit_init(&stream->anc_ptr, 0);
stream->anc_bitlen = 0;
stream->main_data = 0;
stream->md_len = 0;
stream->options = 0;
stream->error = MAD_ERROR_NONE;
}
/*
* NAME: stream->finish()
* DESCRIPTION: deallocate any dynamic memory associated with stream
*/
void mad_stream_finish(struct mad_stream *stream)
{
if (stream->main_data) {
free(stream->main_data);
stream->main_data = 0;
}
mad_bit_finish(&stream->anc_ptr);
mad_bit_finish(&stream->ptr);
}
/*
* NAME: stream->buffer()
* DESCRIPTION: set stream buffer pointers
*/
void mad_stream_buffer(struct mad_stream *stream,
unsigned char const *buffer, unsigned long length)
{
stream->buffer = buffer;
stream->bufend = buffer + length;
stream->this_frame = buffer;
stream->next_frame = buffer;
stream->sync = 1;
mad_bit_init(&stream->ptr, buffer);
}
/*
* NAME: stream->skip()
* DESCRIPTION: arrange to skip bytes before the next frame
*/
void mad_stream_skip(struct mad_stream *stream, unsigned long length)
{
stream->skiplen += length;
}
/*
* NAME: stream->sync()
* DESCRIPTION: locate the next stream sync word
*/
int mad_stream_sync(struct mad_stream *stream)
{
register unsigned char const *ptr, *end;
ptr = mad_bit_nextbyte(&stream->ptr);
end = stream->bufend;
while (ptr < end - 1 &&
!(ptr[0] == 0xff && (ptr[1] & 0xe0) == 0xe0))
++ptr;
if (end - ptr < MAD_BUFFER_GUARD)
return -1;
mad_bit_init(&stream->ptr, ptr);
return 0;
}
/*
* NAME: stream->errorstr()
* DESCRIPTION: return a string description of the current error condition
*/
char const *mad_stream_errorstr(struct mad_stream const *stream)
{
switch (stream->error) {
case MAD_ERROR_NONE: return "no error";
case MAD_ERROR_BUFLEN: return "input buffer too small (or EOF)";
case MAD_ERROR_BUFPTR: return "invalid (null) buffer pointer";
case MAD_ERROR_NOMEM: return "not enough memory";
case MAD_ERROR_LOSTSYNC: return "lost synchronization";
case MAD_ERROR_BADLAYER: return "reserved header layer value";
case MAD_ERROR_BADBITRATE: return "forbidden bitrate value";
case MAD_ERROR_BADSAMPLERATE: return "reserved sample frequency value";
case MAD_ERROR_BADEMPHASIS: return "reserved emphasis value";
case MAD_ERROR_BADCRC: return "CRC check failed";
case MAD_ERROR_BADBITALLOC: return "forbidden bit allocation value";
case MAD_ERROR_BADSCALEFACTOR: return "bad scalefactor index";
case MAD_ERROR_BADMODE: return "bad bitrate/mode combination";
case MAD_ERROR_BADFRAMELEN: return "bad frame length";
case MAD_ERROR_BADBIGVALUES: return "bad big_values count";
case MAD_ERROR_BADBLOCKTYPE: return "reserved block_type";
case MAD_ERROR_BADSCFSI: return "bad scalefactor selection info";
case MAD_ERROR_BADDATAPTR: return "bad main_data_begin pointer";
case MAD_ERROR_BADPART3LEN: return "bad audio data length";
case MAD_ERROR_BADHUFFTABLE: return "bad Huffman table select";
case MAD_ERROR_BADHUFFDATA: return "Huffman data overrun";
case MAD_ERROR_BADSTEREO: return "incompatible block_type for JS";
}
return 0;
}

108
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@ -1,108 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: stream.h,v 1.20 2004/02/05 09:02:39 rob Exp $
*/
# ifndef LIBMAD_STREAM_H
# define LIBMAD_STREAM_H
# include "bit.h"
# define MAD_BUFFER_GUARD 8
# define MAD_BUFFER_MDLEN (511 + 2048 + MAD_BUFFER_GUARD)
enum mad_error {
MAD_ERROR_NONE = 0x0000, /* no error */
MAD_ERROR_BUFLEN = 0x0001, /* input buffer too small (or EOF) */
MAD_ERROR_BUFPTR = 0x0002, /* invalid (null) buffer pointer */
MAD_ERROR_NOMEM = 0x0031, /* not enough memory */
MAD_ERROR_LOSTSYNC = 0x0101, /* lost synchronization */
MAD_ERROR_BADLAYER = 0x0102, /* reserved header layer value */
MAD_ERROR_BADBITRATE = 0x0103, /* forbidden bitrate value */
MAD_ERROR_BADSAMPLERATE = 0x0104, /* reserved sample frequency value */
MAD_ERROR_BADEMPHASIS = 0x0105, /* reserved emphasis value */
MAD_ERROR_BADCRC = 0x0201, /* CRC check failed */
MAD_ERROR_BADBITALLOC = 0x0211, /* forbidden bit allocation value */
MAD_ERROR_BADSCALEFACTOR = 0x0221, /* bad scalefactor index */
MAD_ERROR_BADMODE = 0x0222, /* bad bitrate/mode combination */
MAD_ERROR_BADFRAMELEN = 0x0231, /* bad frame length */
MAD_ERROR_BADBIGVALUES = 0x0232, /* bad big_values count */
MAD_ERROR_BADBLOCKTYPE = 0x0233, /* reserved block_type */
MAD_ERROR_BADSCFSI = 0x0234, /* bad scalefactor selection info */
MAD_ERROR_BADDATAPTR = 0x0235, /* bad main_data_begin pointer */
MAD_ERROR_BADPART3LEN = 0x0236, /* bad audio data length */
MAD_ERROR_BADHUFFTABLE = 0x0237, /* bad Huffman table select */
MAD_ERROR_BADHUFFDATA = 0x0238, /* Huffman data overrun */
MAD_ERROR_BADSTEREO = 0x0239 /* incompatible block_type for JS */
};
# define MAD_RECOVERABLE(error) ((error) & 0xff00)
struct mad_stream {
unsigned char const *buffer; /* input bitstream buffer */
unsigned char const *bufend; /* end of buffer */
unsigned long skiplen; /* bytes to skip before next frame */
int sync; /* stream sync found */
unsigned long freerate; /* free bitrate (fixed) */
unsigned char const *this_frame; /* start of current frame */
unsigned char const *next_frame; /* start of next frame */
struct mad_bitptr ptr; /* current processing bit pointer */
struct mad_bitptr anc_ptr; /* ancillary bits pointer */
unsigned int anc_bitlen; /* number of ancillary bits */
unsigned char (*main_data)[MAD_BUFFER_MDLEN];
/* Layer III main_data() */
unsigned int md_len; /* bytes in main_data */
int options; /* decoding options (see below) */
enum mad_error error; /* error code (see above) */
};
enum {
MAD_OPTION_IGNORECRC = 0x0001, /* ignore CRC errors */
MAD_OPTION_HALFSAMPLERATE = 0x0002 /* generate PCM at 1/2 sample rate */
# if 0 /* not yet implemented */
MAD_OPTION_LEFTCHANNEL = 0x0010, /* decode left channel only */
MAD_OPTION_RIGHTCHANNEL = 0x0020, /* decode right channel only */
MAD_OPTION_SINGLECHANNEL = 0x0030 /* combine channels */
# endif
};
void mad_stream_init(struct mad_stream *);
void mad_stream_finish(struct mad_stream *);
# define mad_stream_options(stream, opts) \
((void) ((stream)->options = (opts)))
void mad_stream_buffer(struct mad_stream *,
unsigned char const *, unsigned long);
void mad_stream_skip(struct mad_stream *, unsigned long);
int mad_stream_sync(struct mad_stream *);
char const *mad_stream_errorstr(struct mad_stream const *);
# endif

857
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@ -1,857 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: synth.c,v 1.25 2004/01/23 09:41:33 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# include "fixed.h"
# include "frame.h"
# include "synth.h"
/*
* NAME: synth->init()
* DESCRIPTION: initialize synth struct
*/
void mad_synth_init(struct mad_synth *synth)
{
mad_synth_mute(synth);
synth->phase = 0;
synth->pcm.samplerate = 0;
synth->pcm.channels = 0;
synth->pcm.length = 0;
}
/*
* NAME: synth->mute()
* DESCRIPTION: zero all polyphase filterbank values, resetting synthesis
*/
void mad_synth_mute(struct mad_synth *synth)
{
unsigned int ch, s, v;
for (ch = 0; ch < 2; ++ch) {
for (s = 0; s < 16; ++s) {
for (v = 0; v < 8; ++v) {
synth->filter[ch][0][0][s][v] = synth->filter[ch][0][1][s][v] =
synth->filter[ch][1][0][s][v] = synth->filter[ch][1][1][s][v] = 0;
}
}
}
}
/*
* An optional optimization called here the Subband Synthesis Optimization
* (SSO) improves the performance of subband synthesis at the expense of
* accuracy.
*
* The idea is to simplify 32x32->64-bit multiplication to 32x32->32 such
* that extra scaling and rounding are not necessary. This often allows the
* compiler to use faster 32-bit multiply-accumulate instructions instead of
* explicit 64-bit multiply, shift, and add instructions.
*
* SSO works like this: a full 32x32->64-bit multiply of two mad_fixed_t
* values requires the result to be right-shifted 28 bits to be properly
* scaled to the same fixed-point format. Right shifts can be applied at any
* time to either operand or to the result, so the optimization involves
* careful placement of these shifts to minimize the loss of accuracy.
*
* First, a 14-bit shift is applied with rounding at compile-time to the D[]
* table of coefficients for the subband synthesis window. This only loses 2
* bits of accuracy because the lower 12 bits are always zero. A second
* 12-bit shift occurs after the DCT calculation. This loses 12 bits of
* accuracy. Finally, a third 2-bit shift occurs just before the sample is
* saved in the PCM buffer. 14 + 12 + 2 == 28 bits.
*/
/* FPM_DEFAULT without OPT_SSO will actually lose accuracy and performance */
# if defined(FPM_DEFAULT) && !defined(OPT_SSO)
# define OPT_SSO
# endif
/* second SSO shift, with rounding */
# if defined(OPT_SSO)
# define SHIFT(x) (((x) + (1L << 11)) >> 12)
# else
# define SHIFT(x) (x)
# endif
/* possible DCT speed optimization */
# if defined(OPT_SPEED) && defined(MAD_F_MLX)
# define OPT_DCTO
# define MUL(x, y) \
({ mad_fixed64hi_t hi; \
mad_fixed64lo_t lo; \
MAD_F_MLX(hi, lo, (x), (y)); \
hi << (32 - MAD_F_SCALEBITS - 3); \
})
# else
# undef OPT_DCTO
# define MUL(x, y) mad_f_mul((x), (y))
# endif
/*
* NAME: dct32()
* DESCRIPTION: perform fast in[32]->out[32] DCT
*/
static
void dct32(mad_fixed_t const in[32], unsigned int slot,
mad_fixed_t lo[16][8], mad_fixed_t hi[16][8])
{
mad_fixed_t t0, t1, t2, t3, t4, t5, t6, t7;
mad_fixed_t t8, t9, t10, t11, t12, t13, t14, t15;
mad_fixed_t t16, t17, t18, t19, t20, t21, t22, t23;
mad_fixed_t t24, t25, t26, t27, t28, t29, t30, t31;
mad_fixed_t t32, t33, t34, t35, t36, t37, t38, t39;
mad_fixed_t t40, t41, t42, t43, t44, t45, t46, t47;
mad_fixed_t t48, t49, t50, t51, t52, t53, t54, t55;
mad_fixed_t t56, t57, t58, t59, t60, t61, t62, t63;
mad_fixed_t t64, t65, t66, t67, t68, t69, t70, t71;
mad_fixed_t t72, t73, t74, t75, t76, t77, t78, t79;
mad_fixed_t t80, t81, t82, t83, t84, t85, t86, t87;
mad_fixed_t t88, t89, t90, t91, t92, t93, t94, t95;
mad_fixed_t t96, t97, t98, t99, t100, t101, t102, t103;
mad_fixed_t t104, t105, t106, t107, t108, t109, t110, t111;
mad_fixed_t t112, t113, t114, t115, t116, t117, t118, t119;
mad_fixed_t t120, t121, t122, t123, t124, t125, t126, t127;
mad_fixed_t t128, t129, t130, t131, t132, t133, t134, t135;
mad_fixed_t t136, t137, t138, t139, t140, t141, t142, t143;
mad_fixed_t t144, t145, t146, t147, t148, t149, t150, t151;
mad_fixed_t t152, t153, t154, t155, t156, t157, t158, t159;
mad_fixed_t t160, t161, t162, t163, t164, t165, t166, t167;
mad_fixed_t t168, t169, t170, t171, t172, t173, t174, t175;
mad_fixed_t t176;
/* costab[i] = cos(PI / (2 * 32) * i) */
# if defined(OPT_DCTO)
# define costab1 MAD_F(0x7fd8878e)
# define costab2 MAD_F(0x7f62368f)
# define costab3 MAD_F(0x7e9d55fc)
# define costab4 MAD_F(0x7d8a5f40)
# define costab5 MAD_F(0x7c29fbee)
# define costab6 MAD_F(0x7a7d055b)
# define costab7 MAD_F(0x78848414)
# define costab8 MAD_F(0x7641af3d)
# define costab9 MAD_F(0x73b5ebd1)
# define costab10 MAD_F(0x70e2cbc6)
# define costab11 MAD_F(0x6dca0d14)
# define costab12 MAD_F(0x6a6d98a4)
# define costab13 MAD_F(0x66cf8120)
# define costab14 MAD_F(0x62f201ac)
# define costab15 MAD_F(0x5ed77c8a)
# define costab16 MAD_F(0x5a82799a)
# define costab17 MAD_F(0x55f5a4d2)
# define costab18 MAD_F(0x5133cc94)
# define costab19 MAD_F(0x4c3fdff4)
# define costab20 MAD_F(0x471cece7)
# define costab21 MAD_F(0x41ce1e65)
# define costab22 MAD_F(0x3c56ba70)
# define costab23 MAD_F(0x36ba2014)
# define costab24 MAD_F(0x30fbc54d)
# define costab25 MAD_F(0x2b1f34eb)
# define costab26 MAD_F(0x25280c5e)
# define costab27 MAD_F(0x1f19f97b)
# define costab28 MAD_F(0x18f8b83c)
# define costab29 MAD_F(0x12c8106f)
# define costab30 MAD_F(0x0c8bd35e)
# define costab31 MAD_F(0x0647d97c)
# else
# define costab1 MAD_F(0x0ffb10f2) /* 0.998795456 */
# define costab2 MAD_F(0x0fec46d2) /* 0.995184727 */
# define costab3 MAD_F(0x0fd3aac0) /* 0.989176510 */
# define costab4 MAD_F(0x0fb14be8) /* 0.980785280 */
# define costab5 MAD_F(0x0f853f7e) /* 0.970031253 */
# define costab6 MAD_F(0x0f4fa0ab) /* 0.956940336 */
# define costab7 MAD_F(0x0f109082) /* 0.941544065 */
# define costab8 MAD_F(0x0ec835e8) /* 0.923879533 */
# define costab9 MAD_F(0x0e76bd7a) /* 0.903989293 */
# define costab10 MAD_F(0x0e1c5979) /* 0.881921264 */
# define costab11 MAD_F(0x0db941a3) /* 0.857728610 */
# define costab12 MAD_F(0x0d4db315) /* 0.831469612 */
# define costab13 MAD_F(0x0cd9f024) /* 0.803207531 */
# define costab14 MAD_F(0x0c5e4036) /* 0.773010453 */
# define costab15 MAD_F(0x0bdaef91) /* 0.740951125 */
# define costab16 MAD_F(0x0b504f33) /* 0.707106781 */
# define costab17 MAD_F(0x0abeb49a) /* 0.671558955 */
# define costab18 MAD_F(0x0a267993) /* 0.634393284 */
# define costab19 MAD_F(0x0987fbfe) /* 0.595699304 */
# define costab20 MAD_F(0x08e39d9d) /* 0.555570233 */
# define costab21 MAD_F(0x0839c3cd) /* 0.514102744 */
# define costab22 MAD_F(0x078ad74e) /* 0.471396737 */
# define costab23 MAD_F(0x06d74402) /* 0.427555093 */
# define costab24 MAD_F(0x061f78aa) /* 0.382683432 */
# define costab25 MAD_F(0x0563e69d) /* 0.336889853 */
# define costab26 MAD_F(0x04a5018c) /* 0.290284677 */
# define costab27 MAD_F(0x03e33f2f) /* 0.242980180 */
# define costab28 MAD_F(0x031f1708) /* 0.195090322 */
# define costab29 MAD_F(0x0259020e) /* 0.146730474 */
# define costab30 MAD_F(0x01917a6c) /* 0.098017140 */
# define costab31 MAD_F(0x00c8fb30) /* 0.049067674 */
# endif
t0 = in[0] + in[31]; t16 = MUL(in[0] - in[31], costab1);
t1 = in[15] + in[16]; t17 = MUL(in[15] - in[16], costab31);
t41 = t16 + t17;
t59 = MUL(t16 - t17, costab2);
t33 = t0 + t1;
t50 = MUL(t0 - t1, costab2);
t2 = in[7] + in[24]; t18 = MUL(in[7] - in[24], costab15);
t3 = in[8] + in[23]; t19 = MUL(in[8] - in[23], costab17);
t42 = t18 + t19;
t60 = MUL(t18 - t19, costab30);
t34 = t2 + t3;
t51 = MUL(t2 - t3, costab30);
t4 = in[3] + in[28]; t20 = MUL(in[3] - in[28], costab7);
t5 = in[12] + in[19]; t21 = MUL(in[12] - in[19], costab25);
t43 = t20 + t21;
t61 = MUL(t20 - t21, costab14);
t35 = t4 + t5;
t52 = MUL(t4 - t5, costab14);
t6 = in[4] + in[27]; t22 = MUL(in[4] - in[27], costab9);
t7 = in[11] + in[20]; t23 = MUL(in[11] - in[20], costab23);
t44 = t22 + t23;
t62 = MUL(t22 - t23, costab18);
t36 = t6 + t7;
t53 = MUL(t6 - t7, costab18);
t8 = in[1] + in[30]; t24 = MUL(in[1] - in[30], costab3);
t9 = in[14] + in[17]; t25 = MUL(in[14] - in[17], costab29);
t45 = t24 + t25;
t63 = MUL(t24 - t25, costab6);
t37 = t8 + t9;
t54 = MUL(t8 - t9, costab6);
t10 = in[6] + in[25]; t26 = MUL(in[6] - in[25], costab13);
t11 = in[9] + in[22]; t27 = MUL(in[9] - in[22], costab19);
t46 = t26 + t27;
t64 = MUL(t26 - t27, costab26);
t38 = t10 + t11;
t55 = MUL(t10 - t11, costab26);
t12 = in[2] + in[29]; t28 = MUL(in[2] - in[29], costab5);
t13 = in[13] + in[18]; t29 = MUL(in[13] - in[18], costab27);
t47 = t28 + t29;
t65 = MUL(t28 - t29, costab10);
t39 = t12 + t13;
t56 = MUL(t12 - t13, costab10);
t14 = in[5] + in[26]; t30 = MUL(in[5] - in[26], costab11);
t15 = in[10] + in[21]; t31 = MUL(in[10] - in[21], costab21);
t48 = t30 + t31;
t66 = MUL(t30 - t31, costab22);
t40 = t14 + t15;
t57 = MUL(t14 - t15, costab22);
t69 = t33 + t34; t89 = MUL(t33 - t34, costab4);
t70 = t35 + t36; t90 = MUL(t35 - t36, costab28);
t71 = t37 + t38; t91 = MUL(t37 - t38, costab12);
t72 = t39 + t40; t92 = MUL(t39 - t40, costab20);
t73 = t41 + t42; t94 = MUL(t41 - t42, costab4);
t74 = t43 + t44; t95 = MUL(t43 - t44, costab28);
t75 = t45 + t46; t96 = MUL(t45 - t46, costab12);
t76 = t47 + t48; t97 = MUL(t47 - t48, costab20);
t78 = t50 + t51; t100 = MUL(t50 - t51, costab4);
t79 = t52 + t53; t101 = MUL(t52 - t53, costab28);
t80 = t54 + t55; t102 = MUL(t54 - t55, costab12);
t81 = t56 + t57; t103 = MUL(t56 - t57, costab20);
t83 = t59 + t60; t106 = MUL(t59 - t60, costab4);
t84 = t61 + t62; t107 = MUL(t61 - t62, costab28);
t85 = t63 + t64; t108 = MUL(t63 - t64, costab12);
t86 = t65 + t66; t109 = MUL(t65 - t66, costab20);
t113 = t69 + t70;
t114 = t71 + t72;
/* 0 */ hi[15][slot] = SHIFT(t113 + t114);
/* 16 */ lo[ 0][slot] = SHIFT(MUL(t113 - t114, costab16));
t115 = t73 + t74;
t116 = t75 + t76;
t32 = t115 + t116;
/* 1 */ hi[14][slot] = SHIFT(t32);
t118 = t78 + t79;
t119 = t80 + t81;
t58 = t118 + t119;
/* 2 */ hi[13][slot] = SHIFT(t58);
t121 = t83 + t84;
t122 = t85 + t86;
t67 = t121 + t122;
t49 = (t67 * 2) - t32;
/* 3 */ hi[12][slot] = SHIFT(t49);
t125 = t89 + t90;
t126 = t91 + t92;
t93 = t125 + t126;
/* 4 */ hi[11][slot] = SHIFT(t93);
t128 = t94 + t95;
t129 = t96 + t97;
t98 = t128 + t129;
t68 = (t98 * 2) - t49;
/* 5 */ hi[10][slot] = SHIFT(t68);
t132 = t100 + t101;
t133 = t102 + t103;
t104 = t132 + t133;
t82 = (t104 * 2) - t58;
/* 6 */ hi[ 9][slot] = SHIFT(t82);
t136 = t106 + t107;
t137 = t108 + t109;
t110 = t136 + t137;
t87 = (t110 * 2) - t67;
t77 = (t87 * 2) - t68;
/* 7 */ hi[ 8][slot] = SHIFT(t77);
t141 = MUL(t69 - t70, costab8);
t142 = MUL(t71 - t72, costab24);
t143 = t141 + t142;
/* 8 */ hi[ 7][slot] = SHIFT(t143);
/* 24 */ lo[ 8][slot] =
SHIFT((MUL(t141 - t142, costab16) * 2) - t143);
t144 = MUL(t73 - t74, costab8);
t145 = MUL(t75 - t76, costab24);
t146 = t144 + t145;
t88 = (t146 * 2) - t77;
/* 9 */ hi[ 6][slot] = SHIFT(t88);
t148 = MUL(t78 - t79, costab8);
t149 = MUL(t80 - t81, costab24);
t150 = t148 + t149;
t105 = (t150 * 2) - t82;
/* 10 */ hi[ 5][slot] = SHIFT(t105);
t152 = MUL(t83 - t84, costab8);
t153 = MUL(t85 - t86, costab24);
t154 = t152 + t153;
t111 = (t154 * 2) - t87;
t99 = (t111 * 2) - t88;
/* 11 */ hi[ 4][slot] = SHIFT(t99);
t157 = MUL(t89 - t90, costab8);
t158 = MUL(t91 - t92, costab24);
t159 = t157 + t158;
t127 = (t159 * 2) - t93;
/* 12 */ hi[ 3][slot] = SHIFT(t127);
t160 = (MUL(t125 - t126, costab16) * 2) - t127;
/* 20 */ lo[ 4][slot] = SHIFT(t160);
/* 28 */ lo[12][slot] =
SHIFT((((MUL(t157 - t158, costab16) * 2) - t159) * 2) - t160);
t161 = MUL(t94 - t95, costab8);
t162 = MUL(t96 - t97, costab24);
t163 = t161 + t162;
t130 = (t163 * 2) - t98;
t112 = (t130 * 2) - t99;
/* 13 */ hi[ 2][slot] = SHIFT(t112);
t164 = (MUL(t128 - t129, costab16) * 2) - t130;
t166 = MUL(t100 - t101, costab8);
t167 = MUL(t102 - t103, costab24);
t168 = t166 + t167;
t134 = (t168 * 2) - t104;
t120 = (t134 * 2) - t105;
/* 14 */ hi[ 1][slot] = SHIFT(t120);
t135 = (MUL(t118 - t119, costab16) * 2) - t120;
/* 18 */ lo[ 2][slot] = SHIFT(t135);
t169 = (MUL(t132 - t133, costab16) * 2) - t134;
t151 = (t169 * 2) - t135;
/* 22 */ lo[ 6][slot] = SHIFT(t151);
t170 = (((MUL(t148 - t149, costab16) * 2) - t150) * 2) - t151;
/* 26 */ lo[10][slot] = SHIFT(t170);
/* 30 */ lo[14][slot] =
SHIFT((((((MUL(t166 - t167, costab16) * 2) -
t168) * 2) - t169) * 2) - t170);
t171 = MUL(t106 - t107, costab8);
t172 = MUL(t108 - t109, costab24);
t173 = t171 + t172;
t138 = (t173 * 2) - t110;
t123 = (t138 * 2) - t111;
t139 = (MUL(t121 - t122, costab16) * 2) - t123;
t117 = (t123 * 2) - t112;
/* 15 */ hi[ 0][slot] = SHIFT(t117);
t124 = (MUL(t115 - t116, costab16) * 2) - t117;
/* 17 */ lo[ 1][slot] = SHIFT(t124);
t131 = (t139 * 2) - t124;
/* 19 */ lo[ 3][slot] = SHIFT(t131);
t140 = (t164 * 2) - t131;
/* 21 */ lo[ 5][slot] = SHIFT(t140);
t174 = (MUL(t136 - t137, costab16) * 2) - t138;
t155 = (t174 * 2) - t139;
t147 = (t155 * 2) - t140;
/* 23 */ lo[ 7][slot] = SHIFT(t147);
t156 = (((MUL(t144 - t145, costab16) * 2) - t146) * 2) - t147;
/* 25 */ lo[ 9][slot] = SHIFT(t156);
t175 = (((MUL(t152 - t153, costab16) * 2) - t154) * 2) - t155;
t165 = (t175 * 2) - t156;
/* 27 */ lo[11][slot] = SHIFT(t165);
t176 = (((((MUL(t161 - t162, costab16) * 2) -
t163) * 2) - t164) * 2) - t165;
/* 29 */ lo[13][slot] = SHIFT(t176);
/* 31 */ lo[15][slot] =
SHIFT((((((((MUL(t171 - t172, costab16) * 2) -
t173) * 2) - t174) * 2) - t175) * 2) - t176);
/*
* Totals:
* 80 multiplies
* 80 additions
* 119 subtractions
* 49 shifts (not counting SSO)
*/
}
# undef MUL
# undef SHIFT
/* third SSO shift and/or D[] optimization preshift */
# if defined(OPT_SSO)
# if MAD_F_FRACBITS != 28
# error "MAD_F_FRACBITS must be 28 to use OPT_SSO"
# endif
# define ML0(hi, lo, x, y) ((lo) = (x) * (y))
# define MLA(hi, lo, x, y) ((lo) += (x) * (y))
# define MLN(hi, lo) ((lo) = -(lo))
# define MLZ(hi, lo) ((void) (hi), (mad_fixed_t) (lo))
# define SHIFT(x) ((x) >> 2)
# define PRESHIFT(x) ((MAD_F(x) + (1L << 13)) >> 14)
# else
# define ML0(hi, lo, x, y) MAD_F_ML0((hi), (lo), (x), (y))
# define MLA(hi, lo, x, y) MAD_F_MLA((hi), (lo), (x), (y))
# define MLN(hi, lo) MAD_F_MLN((hi), (lo))
# define MLZ(hi, lo) MAD_F_MLZ((hi), (lo))
# define SHIFT(x) (x)
# if defined(MAD_F_SCALEBITS)
# undef MAD_F_SCALEBITS
# define MAD_F_SCALEBITS (MAD_F_FRACBITS - 12)
# define PRESHIFT(x) (MAD_F(x) >> 12)
# else
# define PRESHIFT(x) MAD_F(x)
# endif
# endif
static
mad_fixed_t const D[17][32] = {
# include "D.dat"
};
# if defined(ASO_SYNTH)
void synth_full(struct mad_synth *, struct mad_frame const *,
unsigned int, unsigned int);
# else
/*
* NAME: synth->full()
* DESCRIPTION: perform full frequency PCM synthesis
*/
static
void synth_full(struct mad_synth *synth, struct mad_frame const *frame,
unsigned int nch, unsigned int ns)
{
unsigned int phase, ch, s, sb, pe, po;
mad_fixed_t *pcm1, *pcm2, (*filter)[2][2][16][8];
mad_fixed_t const (*sbsample)[36][32];
register mad_fixed_t (*fe)[8], (*fx)[8], (*fo)[8];
register mad_fixed_t const (*Dptr)[32], *ptr;
register mad_fixed64hi_t hi;
register mad_fixed64lo_t lo;
for (ch = 0; ch < nch; ++ch) {
sbsample = &frame->sbsample[ch];
filter = &synth->filter[ch];
phase = synth->phase;
pcm1 = synth->pcm.samples[ch];
for (s = 0; s < ns; ++s) {
dct32((*sbsample)[s], phase >> 1,
(*filter)[0][phase & 1], (*filter)[1][phase & 1]);
pe = phase & ~1;
po = ((phase - 1) & 0xf) | 1;
/* calculate 32 samples */
fe = &(*filter)[0][ phase & 1][0];
fx = &(*filter)[0][~phase & 1][0];
fo = &(*filter)[1][~phase & 1][0];
Dptr = &D[0];
ptr = *Dptr + po;
ML0(hi, lo, (*fx)[0], ptr[ 0]);
MLA(hi, lo, (*fx)[1], ptr[14]);
MLA(hi, lo, (*fx)[2], ptr[12]);
MLA(hi, lo, (*fx)[3], ptr[10]);
MLA(hi, lo, (*fx)[4], ptr[ 8]);
MLA(hi, lo, (*fx)[5], ptr[ 6]);
MLA(hi, lo, (*fx)[6], ptr[ 4]);
MLA(hi, lo, (*fx)[7], ptr[ 2]);
MLN(hi, lo);
ptr = *Dptr + pe;
MLA(hi, lo, (*fe)[0], ptr[ 0]);
MLA(hi, lo, (*fe)[1], ptr[14]);
MLA(hi, lo, (*fe)[2], ptr[12]);
MLA(hi, lo, (*fe)[3], ptr[10]);
MLA(hi, lo, (*fe)[4], ptr[ 8]);
MLA(hi, lo, (*fe)[5], ptr[ 6]);
MLA(hi, lo, (*fe)[6], ptr[ 4]);
MLA(hi, lo, (*fe)[7], ptr[ 2]);
*pcm1++ = SHIFT(MLZ(hi, lo));
pcm2 = pcm1 + 30;
for (sb = 1; sb < 16; ++sb) {
++fe;
++Dptr;
/* D[32 - sb][i] == -D[sb][31 - i] */
ptr = *Dptr + po;
ML0(hi, lo, (*fo)[0], ptr[ 0]);
MLA(hi, lo, (*fo)[1], ptr[14]);
MLA(hi, lo, (*fo)[2], ptr[12]);
MLA(hi, lo, (*fo)[3], ptr[10]);
MLA(hi, lo, (*fo)[4], ptr[ 8]);
MLA(hi, lo, (*fo)[5], ptr[ 6]);
MLA(hi, lo, (*fo)[6], ptr[ 4]);
MLA(hi, lo, (*fo)[7], ptr[ 2]);
MLN(hi, lo);
ptr = *Dptr + pe;
MLA(hi, lo, (*fe)[7], ptr[ 2]);
MLA(hi, lo, (*fe)[6], ptr[ 4]);
MLA(hi, lo, (*fe)[5], ptr[ 6]);
MLA(hi, lo, (*fe)[4], ptr[ 8]);
MLA(hi, lo, (*fe)[3], ptr[10]);
MLA(hi, lo, (*fe)[2], ptr[12]);
MLA(hi, lo, (*fe)[1], ptr[14]);
MLA(hi, lo, (*fe)[0], ptr[ 0]);
*pcm1++ = SHIFT(MLZ(hi, lo));
ptr = *Dptr - pe;
ML0(hi, lo, (*fe)[0], ptr[31 - 16]);
MLA(hi, lo, (*fe)[1], ptr[31 - 14]);
MLA(hi, lo, (*fe)[2], ptr[31 - 12]);
MLA(hi, lo, (*fe)[3], ptr[31 - 10]);
MLA(hi, lo, (*fe)[4], ptr[31 - 8]);
MLA(hi, lo, (*fe)[5], ptr[31 - 6]);
MLA(hi, lo, (*fe)[6], ptr[31 - 4]);
MLA(hi, lo, (*fe)[7], ptr[31 - 2]);
ptr = *Dptr - po;
MLA(hi, lo, (*fo)[7], ptr[31 - 2]);
MLA(hi, lo, (*fo)[6], ptr[31 - 4]);
MLA(hi, lo, (*fo)[5], ptr[31 - 6]);
MLA(hi, lo, (*fo)[4], ptr[31 - 8]);
MLA(hi, lo, (*fo)[3], ptr[31 - 10]);
MLA(hi, lo, (*fo)[2], ptr[31 - 12]);
MLA(hi, lo, (*fo)[1], ptr[31 - 14]);
MLA(hi, lo, (*fo)[0], ptr[31 - 16]);
*pcm2-- = SHIFT(MLZ(hi, lo));
++fo;
}
++Dptr;
ptr = *Dptr + po;
ML0(hi, lo, (*fo)[0], ptr[ 0]);
MLA(hi, lo, (*fo)[1], ptr[14]);
MLA(hi, lo, (*fo)[2], ptr[12]);
MLA(hi, lo, (*fo)[3], ptr[10]);
MLA(hi, lo, (*fo)[4], ptr[ 8]);
MLA(hi, lo, (*fo)[5], ptr[ 6]);
MLA(hi, lo, (*fo)[6], ptr[ 4]);
MLA(hi, lo, (*fo)[7], ptr[ 2]);
*pcm1 = SHIFT(-MLZ(hi, lo));
pcm1 += 16;
phase = (phase + 1) % 16;
}
}
}
# endif
/*
* NAME: synth->half()
* DESCRIPTION: perform half frequency PCM synthesis
*/
static
void synth_half(struct mad_synth *synth, struct mad_frame const *frame,
unsigned int nch, unsigned int ns)
{
unsigned int phase, ch, s, sb, pe, po;
mad_fixed_t *pcm1, *pcm2, (*filter)[2][2][16][8];
mad_fixed_t const (*sbsample)[36][32];
register mad_fixed_t (*fe)[8], (*fx)[8], (*fo)[8];
register mad_fixed_t const (*Dptr)[32], *ptr;
register mad_fixed64hi_t hi;
register mad_fixed64lo_t lo;
for (ch = 0; ch < nch; ++ch) {
sbsample = &frame->sbsample[ch];
filter = &synth->filter[ch];
phase = synth->phase;
pcm1 = synth->pcm.samples[ch];
for (s = 0; s < ns; ++s) {
dct32((*sbsample)[s], phase >> 1,
(*filter)[0][phase & 1], (*filter)[1][phase & 1]);
pe = phase & ~1;
po = ((phase - 1) & 0xf) | 1;
/* calculate 16 samples */
fe = &(*filter)[0][ phase & 1][0];
fx = &(*filter)[0][~phase & 1][0];
fo = &(*filter)[1][~phase & 1][0];
Dptr = &D[0];
ptr = *Dptr + po;
ML0(hi, lo, (*fx)[0], ptr[ 0]);
MLA(hi, lo, (*fx)[1], ptr[14]);
MLA(hi, lo, (*fx)[2], ptr[12]);
MLA(hi, lo, (*fx)[3], ptr[10]);
MLA(hi, lo, (*fx)[4], ptr[ 8]);
MLA(hi, lo, (*fx)[5], ptr[ 6]);
MLA(hi, lo, (*fx)[6], ptr[ 4]);
MLA(hi, lo, (*fx)[7], ptr[ 2]);
MLN(hi, lo);
ptr = *Dptr + pe;
MLA(hi, lo, (*fe)[0], ptr[ 0]);
MLA(hi, lo, (*fe)[1], ptr[14]);
MLA(hi, lo, (*fe)[2], ptr[12]);
MLA(hi, lo, (*fe)[3], ptr[10]);
MLA(hi, lo, (*fe)[4], ptr[ 8]);
MLA(hi, lo, (*fe)[5], ptr[ 6]);
MLA(hi, lo, (*fe)[6], ptr[ 4]);
MLA(hi, lo, (*fe)[7], ptr[ 2]);
*pcm1++ = SHIFT(MLZ(hi, lo));
pcm2 = pcm1 + 14;
for (sb = 1; sb < 16; ++sb) {
++fe;
++Dptr;
/* D[32 - sb][i] == -D[sb][31 - i] */
if (!(sb & 1)) {
ptr = *Dptr + po;
ML0(hi, lo, (*fo)[0], ptr[ 0]);
MLA(hi, lo, (*fo)[1], ptr[14]);
MLA(hi, lo, (*fo)[2], ptr[12]);
MLA(hi, lo, (*fo)[3], ptr[10]);
MLA(hi, lo, (*fo)[4], ptr[ 8]);
MLA(hi, lo, (*fo)[5], ptr[ 6]);
MLA(hi, lo, (*fo)[6], ptr[ 4]);
MLA(hi, lo, (*fo)[7], ptr[ 2]);
MLN(hi, lo);
ptr = *Dptr + pe;
MLA(hi, lo, (*fe)[7], ptr[ 2]);
MLA(hi, lo, (*fe)[6], ptr[ 4]);
MLA(hi, lo, (*fe)[5], ptr[ 6]);
MLA(hi, lo, (*fe)[4], ptr[ 8]);
MLA(hi, lo, (*fe)[3], ptr[10]);
MLA(hi, lo, (*fe)[2], ptr[12]);
MLA(hi, lo, (*fe)[1], ptr[14]);
MLA(hi, lo, (*fe)[0], ptr[ 0]);
*pcm1++ = SHIFT(MLZ(hi, lo));
ptr = *Dptr - po;
ML0(hi, lo, (*fo)[7], ptr[31 - 2]);
MLA(hi, lo, (*fo)[6], ptr[31 - 4]);
MLA(hi, lo, (*fo)[5], ptr[31 - 6]);
MLA(hi, lo, (*fo)[4], ptr[31 - 8]);
MLA(hi, lo, (*fo)[3], ptr[31 - 10]);
MLA(hi, lo, (*fo)[2], ptr[31 - 12]);
MLA(hi, lo, (*fo)[1], ptr[31 - 14]);
MLA(hi, lo, (*fo)[0], ptr[31 - 16]);
ptr = *Dptr - pe;
MLA(hi, lo, (*fe)[0], ptr[31 - 16]);
MLA(hi, lo, (*fe)[1], ptr[31 - 14]);
MLA(hi, lo, (*fe)[2], ptr[31 - 12]);
MLA(hi, lo, (*fe)[3], ptr[31 - 10]);
MLA(hi, lo, (*fe)[4], ptr[31 - 8]);
MLA(hi, lo, (*fe)[5], ptr[31 - 6]);
MLA(hi, lo, (*fe)[6], ptr[31 - 4]);
MLA(hi, lo, (*fe)[7], ptr[31 - 2]);
*pcm2-- = SHIFT(MLZ(hi, lo));
}
++fo;
}
++Dptr;
ptr = *Dptr + po;
ML0(hi, lo, (*fo)[0], ptr[ 0]);
MLA(hi, lo, (*fo)[1], ptr[14]);
MLA(hi, lo, (*fo)[2], ptr[12]);
MLA(hi, lo, (*fo)[3], ptr[10]);
MLA(hi, lo, (*fo)[4], ptr[ 8]);
MLA(hi, lo, (*fo)[5], ptr[ 6]);
MLA(hi, lo, (*fo)[6], ptr[ 4]);
MLA(hi, lo, (*fo)[7], ptr[ 2]);
*pcm1 = SHIFT(-MLZ(hi, lo));
pcm1 += 8;
phase = (phase + 1) % 16;
}
}
}
/*
* NAME: synth->frame()
* DESCRIPTION: perform PCM synthesis of frame subband samples
*/
void mad_synth_frame(struct mad_synth *synth, struct mad_frame const *frame)
{
unsigned int nch, ns;
void (*synth_frame)(struct mad_synth *, struct mad_frame const *,
unsigned int, unsigned int);
nch = MAD_NCHANNELS(&frame->header);
ns = MAD_NSBSAMPLES(&frame->header);
synth->pcm.samplerate = frame->header.samplerate;
synth->pcm.channels = nch;
synth->pcm.length = 32 * ns;
synth_frame = synth_full;
if (frame->options & MAD_OPTION_HALFSAMPLERATE) {
synth->pcm.samplerate /= 2;
synth->pcm.length /= 2;
synth_frame = synth_half;
}
synth_frame(synth, frame, nch, ns);
synth->phase = (synth->phase + ns) % 16;
}

69
Frameworks/MAD/Files/synth.h
View File

@ -1,69 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: synth.h,v 1.15 2004/01/23 09:41:33 rob Exp $
*/
# ifndef LIBMAD_SYNTH_H
# define LIBMAD_SYNTH_H
# include "fixed.h"
# include "frame.h"
struct mad_pcm {
unsigned int samplerate; /* sampling frequency (Hz) */
unsigned short channels; /* number of channels */
unsigned short length; /* number of samples per channel */
mad_fixed_t samples[2][1152]; /* PCM output samples [ch][sample] */
};
struct mad_synth {
mad_fixed_t filter[2][2][2][16][8]; /* polyphase filterbank outputs */
/* [ch][eo][peo][s][v] */
unsigned int phase; /* current processing phase */
struct mad_pcm pcm; /* PCM output */
};
/* single channel PCM selector */
enum {
MAD_PCM_CHANNEL_SINGLE = 0
};
/* dual channel PCM selector */
enum {
MAD_PCM_CHANNEL_DUAL_1 = 0,
MAD_PCM_CHANNEL_DUAL_2 = 1
};
/* stereo PCM selector */
enum {
MAD_PCM_CHANNEL_STEREO_LEFT = 0,
MAD_PCM_CHANNEL_STEREO_RIGHT = 1
};
void mad_synth_init(struct mad_synth *);
# define mad_synth_finish(synth) /* nothing */
void mad_synth_mute(struct mad_synth *);
void mad_synth_frame(struct mad_synth *, struct mad_frame const *);
# endif

485
Frameworks/MAD/Files/timer.c
View File

@ -1,485 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: timer.c,v 1.18 2004/01/23 09:41:33 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# include <stdio.h>
# ifdef HAVE_ASSERT_H
# include <assert.h>
# endif
# include "timer.h"
mad_timer_t const mad_timer_zero = { 0, 0 };
/*
* NAME: timer->compare()
* DESCRIPTION: indicate relative order of two timers
*/
int mad_timer_compare(mad_timer_t timer1, mad_timer_t timer2)
{
signed long diff;
diff = timer1.seconds - timer2.seconds;
if (diff < 0)
return -1;
else if (diff > 0)
return +1;
diff = timer1.fraction - timer2.fraction;
if (diff < 0)
return -1;
else if (diff > 0)
return +1;
return 0;
}
/*
* NAME: timer->negate()
* DESCRIPTION: invert the sign of a timer
*/
void mad_timer_negate(mad_timer_t *timer)
{
timer->seconds = -timer->seconds;
if (timer->fraction) {
timer->seconds -= 1;
timer->fraction = MAD_TIMER_RESOLUTION - timer->fraction;
}
}
/*
* NAME: timer->abs()
* DESCRIPTION: return the absolute value of a timer
*/
mad_timer_t mad_timer_abs(mad_timer_t timer)
{
if (timer.seconds < 0)
mad_timer_negate(&timer);
return timer;
}
/*
* NAME: reduce_timer()
* DESCRIPTION: carry timer fraction into seconds
*/
static
void reduce_timer(mad_timer_t *timer)
{
timer->seconds += timer->fraction / MAD_TIMER_RESOLUTION;
timer->fraction %= MAD_TIMER_RESOLUTION;
}
/*
* NAME: gcd()
* DESCRIPTION: compute greatest common denominator
*/
static
unsigned long gcd(unsigned long num1, unsigned long num2)
{
unsigned long tmp;
while (num2) {
tmp = num2;
num2 = num1 % num2;
num1 = tmp;
}
return num1;
}
/*
* NAME: reduce_rational()
* DESCRIPTION: convert rational expression to lowest terms
*/
static
void reduce_rational(unsigned long *numer, unsigned long *denom)
{
unsigned long factor;
factor = gcd(*numer, *denom);
assert(factor != 0);
*numer /= factor;
*denom /= factor;
}
/*
* NAME: scale_rational()
* DESCRIPTION: solve numer/denom == ?/scale avoiding overflowing
*/
static
unsigned long scale_rational(unsigned long numer, unsigned long denom,
unsigned long scale)
{
reduce_rational(&numer, &denom);
reduce_rational(&scale, &denom);
assert(denom != 0);
if (denom < scale)
return numer * (scale / denom) + numer * (scale % denom) / denom;
if (denom < numer)
return scale * (numer / denom) + scale * (numer % denom) / denom;
return numer * scale / denom;
}
/*
* NAME: timer->set()
* DESCRIPTION: set timer to specific (positive) value
*/
void mad_timer_set(mad_timer_t *timer, unsigned long seconds,
unsigned long numer, unsigned long denom)
{
timer->seconds = seconds;
if (numer >= denom && denom > 0) {
timer->seconds += numer / denom;
numer %= denom;
}
switch (denom) {
case 0:
case 1:
timer->fraction = 0;
break;
case MAD_TIMER_RESOLUTION:
timer->fraction = numer;
break;
case 1000:
timer->fraction = numer * (MAD_TIMER_RESOLUTION / 1000);
break;
case 8000:
timer->fraction = numer * (MAD_TIMER_RESOLUTION / 8000);
break;
case 11025:
timer->fraction = numer * (MAD_TIMER_RESOLUTION / 11025);
break;
case 12000:
timer->fraction = numer * (MAD_TIMER_RESOLUTION / 12000);
break;
case 16000:
timer->fraction = numer * (MAD_TIMER_RESOLUTION / 16000);
break;
case 22050:
timer->fraction = numer * (MAD_TIMER_RESOLUTION / 22050);
break;
case 24000:
timer->fraction = numer * (MAD_TIMER_RESOLUTION / 24000);
break;
case 32000:
timer->fraction = numer * (MAD_TIMER_RESOLUTION / 32000);
break;
case 44100:
timer->fraction = numer * (MAD_TIMER_RESOLUTION / 44100);
break;
case 48000:
timer->fraction = numer * (MAD_TIMER_RESOLUTION / 48000);
break;
default:
timer->fraction = scale_rational(numer, denom, MAD_TIMER_RESOLUTION);
break;
}
if (timer->fraction >= MAD_TIMER_RESOLUTION)
reduce_timer(timer);
}
/*
* NAME: timer->add()
* DESCRIPTION: add one timer to another
*/
void mad_timer_add(mad_timer_t *timer, mad_timer_t incr)
{
timer->seconds += incr.seconds;
timer->fraction += incr.fraction;
if (timer->fraction >= MAD_TIMER_RESOLUTION)
reduce_timer(timer);
}
/*
* NAME: timer->multiply()
* DESCRIPTION: multiply a timer by a scalar value
*/
void mad_timer_multiply(mad_timer_t *timer, signed long scalar)
{
mad_timer_t addend;
unsigned long factor;
factor = scalar;
if (scalar < 0) {
factor = -scalar;
mad_timer_negate(timer);
}
addend = *timer;
*timer = mad_timer_zero;
while (factor) {
if (factor & 1)
mad_timer_add(timer, addend);
mad_timer_add(&addend, addend);
factor >>= 1;
}
}
/*
* NAME: timer->count()
* DESCRIPTION: return timer value in selected units
*/
signed long mad_timer_count(mad_timer_t timer, enum mad_units units)
{
switch (units) {
case MAD_UNITS_HOURS:
return timer.seconds / 60 / 60;
case MAD_UNITS_MINUTES:
return timer.seconds / 60;
case MAD_UNITS_SECONDS:
return timer.seconds;
case MAD_UNITS_DECISECONDS:
case MAD_UNITS_CENTISECONDS:
case MAD_UNITS_MILLISECONDS:
case MAD_UNITS_8000_HZ:
case MAD_UNITS_11025_HZ:
case MAD_UNITS_12000_HZ:
case MAD_UNITS_16000_HZ:
case MAD_UNITS_22050_HZ:
case MAD_UNITS_24000_HZ:
case MAD_UNITS_32000_HZ:
case MAD_UNITS_44100_HZ:
case MAD_UNITS_48000_HZ:
case MAD_UNITS_24_FPS:
case MAD_UNITS_25_FPS:
case MAD_UNITS_30_FPS:
case MAD_UNITS_48_FPS:
case MAD_UNITS_50_FPS:
case MAD_UNITS_60_FPS:
case MAD_UNITS_75_FPS:
return timer.seconds * (signed long) units +
(signed long) scale_rational(timer.fraction, MAD_TIMER_RESOLUTION,
units);
case MAD_UNITS_23_976_FPS:
case MAD_UNITS_24_975_FPS:
case MAD_UNITS_29_97_FPS:
case MAD_UNITS_47_952_FPS:
case MAD_UNITS_49_95_FPS:
case MAD_UNITS_59_94_FPS:
return (mad_timer_count(timer, -units) + 1) * 1000 / 1001;
}
/* unsupported units */
return 0;
}
/*
* NAME: timer->fraction()
* DESCRIPTION: return fractional part of timer in arbitrary terms
*/
unsigned long mad_timer_fraction(mad_timer_t timer, unsigned long denom)
{
timer = mad_timer_abs(timer);
switch (denom) {
case 0:
return timer.fraction ?
MAD_TIMER_RESOLUTION / timer.fraction : MAD_TIMER_RESOLUTION + 1;
case MAD_TIMER_RESOLUTION:
return timer.fraction;
default:
return scale_rational(timer.fraction, MAD_TIMER_RESOLUTION, denom);
}
}
/*
* NAME: timer->string()
* DESCRIPTION: write a string representation of a timer using a template
*/
void mad_timer_string(mad_timer_t timer,
char *dest, char const *format, enum mad_units units,
enum mad_units fracunits, unsigned long subparts)
{
unsigned long hours, minutes, seconds, sub;
unsigned int frac;
timer = mad_timer_abs(timer);
seconds = timer.seconds;
frac = sub = 0;
switch (fracunits) {
case MAD_UNITS_HOURS:
case MAD_UNITS_MINUTES:
case MAD_UNITS_SECONDS:
break;
case MAD_UNITS_DECISECONDS:
case MAD_UNITS_CENTISECONDS:
case MAD_UNITS_MILLISECONDS:
case MAD_UNITS_8000_HZ:
case MAD_UNITS_11025_HZ:
case MAD_UNITS_12000_HZ:
case MAD_UNITS_16000_HZ:
case MAD_UNITS_22050_HZ:
case MAD_UNITS_24000_HZ:
case MAD_UNITS_32000_HZ:
case MAD_UNITS_44100_HZ:
case MAD_UNITS_48000_HZ:
case MAD_UNITS_24_FPS:
case MAD_UNITS_25_FPS:
case MAD_UNITS_30_FPS:
case MAD_UNITS_48_FPS:
case MAD_UNITS_50_FPS:
case MAD_UNITS_60_FPS:
case MAD_UNITS_75_FPS:
{
unsigned long denom;
denom = MAD_TIMER_RESOLUTION / fracunits;
frac = timer.fraction / denom;
sub = scale_rational(timer.fraction % denom, denom, subparts);
}
break;
case MAD_UNITS_23_976_FPS:
case MAD_UNITS_24_975_FPS:
case MAD_UNITS_29_97_FPS:
case MAD_UNITS_47_952_FPS:
case MAD_UNITS_49_95_FPS:
case MAD_UNITS_59_94_FPS:
/* drop-frame encoding */
/* N.B. this is only well-defined for MAD_UNITS_29_97_FPS */
{
unsigned long frame, cycle, d, m;
frame = mad_timer_count(timer, fracunits);
cycle = -fracunits * 60 * 10 - (10 - 1) * 2;
d = frame / cycle;
m = frame % cycle;
frame += (10 - 1) * 2 * d;
if (m > 2)
frame += 2 * ((m - 2) / (cycle / 10));
frac = frame % -fracunits;
seconds = frame / -fracunits;
}
break;
}
switch (units) {
case MAD_UNITS_HOURS:
minutes = seconds / 60;
hours = minutes / 60;
sprintf(dest, format,
hours,
(unsigned int) (minutes % 60),
(unsigned int) (seconds % 60),
frac, sub);
break;
case MAD_UNITS_MINUTES:
minutes = seconds / 60;
sprintf(dest, format,
minutes,
(unsigned int) (seconds % 60),
frac, sub);
break;
case MAD_UNITS_SECONDS:
sprintf(dest, format,
seconds,
frac, sub);
break;
case MAD_UNITS_23_976_FPS:
case MAD_UNITS_24_975_FPS:
case MAD_UNITS_29_97_FPS:
case MAD_UNITS_47_952_FPS:
case MAD_UNITS_49_95_FPS:
case MAD_UNITS_59_94_FPS:
if (fracunits < 0) {
/* not yet implemented */
sub = 0;
}
/* fall through */
case MAD_UNITS_DECISECONDS:
case MAD_UNITS_CENTISECONDS:
case MAD_UNITS_MILLISECONDS:
case MAD_UNITS_8000_HZ:
case MAD_UNITS_11025_HZ:
case MAD_UNITS_12000_HZ:
case MAD_UNITS_16000_HZ:
case MAD_UNITS_22050_HZ:
case MAD_UNITS_24000_HZ:
case MAD_UNITS_32000_HZ:
case MAD_UNITS_44100_HZ:
case MAD_UNITS_48000_HZ:
case MAD_UNITS_24_FPS:
case MAD_UNITS_25_FPS:
case MAD_UNITS_30_FPS:
case MAD_UNITS_48_FPS:
case MAD_UNITS_50_FPS:
case MAD_UNITS_60_FPS:
case MAD_UNITS_75_FPS:
sprintf(dest, format, mad_timer_count(timer, units), sub);
break;
}
}

100
Frameworks/MAD/Files/timer.h
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@ -1,100 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: timer.h,v 1.16 2004/01/23 09:41:33 rob Exp $
*/
# ifndef LIBMAD_TIMER_H
# define LIBMAD_TIMER_H
typedef struct {
signed long seconds; /* whole seconds */
unsigned long fraction; /* 1/MAD_TIMER_RESOLUTION seconds */
} mad_timer_t;
extern mad_timer_t const mad_timer_zero;
# define MAD_TIMER_RESOLUTION 352800000UL
enum mad_units {
MAD_UNITS_HOURS = -2,
MAD_UNITS_MINUTES = -1,
MAD_UNITS_SECONDS = 0,
/* metric units */
MAD_UNITS_DECISECONDS = 10,
MAD_UNITS_CENTISECONDS = 100,
MAD_UNITS_MILLISECONDS = 1000,
/* audio sample units */
MAD_UNITS_8000_HZ = 8000,
MAD_UNITS_11025_HZ = 11025,
MAD_UNITS_12000_HZ = 12000,
MAD_UNITS_16000_HZ = 16000,
MAD_UNITS_22050_HZ = 22050,
MAD_UNITS_24000_HZ = 24000,
MAD_UNITS_32000_HZ = 32000,
MAD_UNITS_44100_HZ = 44100,
MAD_UNITS_48000_HZ = 48000,
/* video frame/field units */
MAD_UNITS_24_FPS = 24,
MAD_UNITS_25_FPS = 25,
MAD_UNITS_30_FPS = 30,
MAD_UNITS_48_FPS = 48,
MAD_UNITS_50_FPS = 50,
MAD_UNITS_60_FPS = 60,
/* CD audio frames */
MAD_UNITS_75_FPS = 75,
/* video drop-frame units */
MAD_UNITS_23_976_FPS = -24,
MAD_UNITS_24_975_FPS = -25,
MAD_UNITS_29_97_FPS = -30,
MAD_UNITS_47_952_FPS = -48,
MAD_UNITS_49_95_FPS = -50,
MAD_UNITS_59_94_FPS = -60
};
# define mad_timer_reset(timer) ((void) (*(timer) = mad_timer_zero))
int mad_timer_compare(mad_timer_t, mad_timer_t);
# define mad_timer_sign(timer) mad_timer_compare((timer), mad_timer_zero)
void mad_timer_negate(mad_timer_t *);
mad_timer_t mad_timer_abs(mad_timer_t);
void mad_timer_set(mad_timer_t *, unsigned long, unsigned long, unsigned long);
void mad_timer_add(mad_timer_t *, mad_timer_t);
void mad_timer_multiply(mad_timer_t *, signed long);
signed long mad_timer_count(mad_timer_t, enum mad_units);
unsigned long mad_timer_fraction(mad_timer_t, unsigned long);
void mad_timer_string(mad_timer_t, char *, char const *,
enum mad_units, enum mad_units, unsigned long);
# endif

91
Frameworks/MAD/Files/version.c
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@ -1,91 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: version.c,v 1.15 2004/01/23 09:41:33 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# include "version.h"
char const mad_version[] = "MPEG Audio Decoder " MAD_VERSION;
char const mad_copyright[] = "Copyright (C) " MAD_PUBLISHYEAR " " MAD_AUTHOR;
char const mad_author[] = MAD_AUTHOR " <" MAD_EMAIL ">";
char const mad_build[] = ""
# if defined(DEBUG)
"DEBUG "
# elif defined(NDEBUG)
"NDEBUG "
# endif
# if defined(EXPERIMENTAL)
"EXPERIMENTAL "
# endif
# if defined(FPM_64BIT)
"FPM_64BIT "
# elif defined(FPM_INTEL)
"FPM_INTEL "
# elif defined(FPM_ARM)
"FPM_ARM "
# elif defined(FPM_MIPS)
"FPM_MIPS "
# elif defined(FPM_SPARC)
"FPM_SPARC "
# elif defined(FPM_PPC)
"FPM_PPC "
# elif defined(FPM_DEFAULT)
"FPM_DEFAULT "
# endif
# if defined(ASO_IMDCT)
"ASO_IMDCT "
# endif
# if defined(ASO_INTERLEAVE1)
"ASO_INTERLEAVE1 "
# endif
# if defined(ASO_INTERLEAVE2)
"ASO_INTERLEAVE2 "
# endif
# if defined(ASO_ZEROCHECK)
"ASO_ZEROCHECK "
# endif
# if defined(OPT_SPEED)
"OPT_SPEED "
# elif defined(OPT_ACCURACY)
"OPT_ACCURACY "
# endif
# if defined(OPT_SSO)
"OPT_SSO "
# endif
# if defined(OPT_DCTO) /* never defined here */
"OPT_DCTO "
# endif
# if defined(OPT_STRICT)
"OPT_STRICT "
# endif
;

47
Frameworks/MAD/Files/version.h
View File

@ -1,47 +0,0 @@
/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: version.h,v 1.26 2004/01/23 09:41:33 rob Exp $
*/
# ifndef LIBMAD_VERSION_H
# define LIBMAD_VERSION_H
# define MAD_VERSION_MAJOR 0
# define MAD_VERSION_MINOR 15
# define MAD_VERSION_PATCH 1
# define MAD_VERSION_EXTRA " (beta)"
# define MAD_VERSION_STRINGIZE(str) #str
# define MAD_VERSION_STRING(num) MAD_VERSION_STRINGIZE(num)
# define MAD_VERSION MAD_VERSION_STRING(MAD_VERSION_MAJOR) "." \
MAD_VERSION_STRING(MAD_VERSION_MINOR) "." \
MAD_VERSION_STRING(MAD_VERSION_PATCH) \
MAD_VERSION_EXTRA
# define MAD_PUBLISHYEAR "2000-2004"
# define MAD_AUTHOR "Underbit Technologies, Inc."
# define MAD_EMAIL "info@underbit.com"
extern char const mad_version[];
extern char const mad_copyright[];
extern char const mad_author[];
extern char const mad_build[];
# endif

26
Frameworks/MAD/Info.plist
View File

@ -1,26 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>English</string>
<key>CFBundleExecutable</key>
<string>MAD</string>
<key>CFBundleIconFile</key>
<string></string>
<key>CFBundleIdentifier</key>
<string>com.apple.carbonframeworktemplate</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundlePackageType</key>
<string>FMWK</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>1.0</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CSResourcesFileMapped</key>
<true/>
</dict>
</plist>

382
Frameworks/MAD/MAD.xcodeproj/project.pbxproj
View File

@ -1,382 +0,0 @@
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};
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53
Plugins/MAD/MADDecoder.h
View File

@ -1,53 +0,0 @@
//
// MADFile.h
// Cog
//
// Created by Vincent Spader on 6/17/06.
// Copyright 2006 Vincent Spader. All rights reserved.
//
#import <Cocoa/Cocoa.h>
#import "MAD/mad.h"
#import "Plugin.h"
#define INPUT_BUFFER_SIZE 5*8192
@interface MADDecoder : NSObject <CogDecoder>
{
struct mad_stream _stream;
struct mad_frame _frame;
struct mad_synth _synth;
unsigned char _inputBuffer[INPUT_BUFFER_SIZE+MAD_BUFFER_GUARD];
unsigned char *_outputBuffer;
int _outputFrames;
long _fileSize;
id<CogSource> _source;
BOOL _firstFrame;
//For gapless playback of mp3s
BOOL _foundXingHeader;
BOOL _foundLAMEHeader;
long _framesDecoded;
uint16_t _startPadding;
uint16_t _endPadding;
BOOL inputEOF;
int bytesPerFrame;
int channels;
float sampleRate;
int bitrate;
long totalFrames;
}
- (int)decodeMPEGFrame;
@end

595
Plugins/MAD/MADDecoder.m
View File

@ -1,595 +0,0 @@
//
// MADFile.m
// Cog
//
// Created by Vincent Spader on 6/17/06.
// Copyright 2006 Vincent Spader. All rights reserved.
//
#import "MADDecoder.h"
@implementation MADDecoder
#define LAME_HEADER_SIZE ((8 * 5) + 4 + 4 + 8 + 32 + 16 + 16 + 4 + 4 + 8 + 12 + 12 + 8 + 8 + 2 + 3 + 11 + 32 + 32 + 32)
// From vbrheadersdk:
// ========================================
// A Xing header may be present in the ancillary
// data field of the first frame of an mp3 bitstream
// The Xing header (optionally) contains
// frames total number of audio frames in the bitstream
// bytes total number of bytes in the bitstream
// toc table of contents
// toc (table of contents) gives seek points
// for random access
// the ith entry determines the seek point for
// i-percent duration
// seek point in bytes = (toc[i]/256.0) * total_bitstream_bytes
// e.g. half duration seek point = (toc[50]/256.0) * total_bitstream_bytes
#define FRAMES_FLAG 0x0001
#define BYTES_FLAG 0x0002
#define TOC_FLAG 0x0004
#define VBR_SCALE_FLAG 0x0008
//Scan file quickly
- (BOOL)scanFile
{
struct mad_stream stream;
struct mad_frame frame;
int framesDecoded = 0;
int bytesToRead, bytesRemaining;
int samplesPerMPEGFrame = 0;
int id3_length = 0;
mad_stream_init (&stream);
mad_frame_init (&frame);
[_source seek:0 whence:SEEK_END];
_fileSize = [_source tell];
[_source seek:0 whence:SEEK_SET];
for (;;) {
if(NULL == stream.buffer || MAD_ERROR_BUFLEN == stream.error) {
if(stream.next_frame) {
bytesRemaining = stream.bufend - stream.next_frame;
memmove(_inputBuffer, stream.next_frame, bytesRemaining);
bytesToRead = INPUT_BUFFER_SIZE - bytesRemaining;
}
else {
bytesToRead = INPUT_BUFFER_SIZE,
bytesRemaining = 0;
}
// Read raw bytes from the MP3 file
int bytesRead = [_source read:_inputBuffer + bytesRemaining amount: bytesToRead];
if (bytesRead == 0)
{
memset(_inputBuffer + bytesRemaining + bytesRead, 0, MAD_BUFFER_GUARD);
bytesRead += MAD_BUFFER_GUARD;
inputEOF = YES;
}
mad_stream_buffer(&stream, _inputBuffer, bytesRead + bytesRemaining);
stream.error = MAD_ERROR_NONE;
}
if (mad_frame_decode(&frame, &stream) == -1)
{
if (MAD_RECOVERABLE(stream.error))
{
// Prevent ID3 tags from reporting recoverable frame errors
const uint8_t *buffer = stream.this_frame;
unsigned buflen = stream.bufend - stream.this_frame;
if(10 <= buflen && 0x49 == buffer[0] && 0x44 == buffer[1] && 0x33 == buffer[2]) {
id3_length = (((buffer[6] & 0x7F) << (3 * 7)) | ((buffer[7] & 0x7F) << (2 * 7)) |
((buffer[8] & 0x7F) << (1 * 7)) | ((buffer[9] & 0x7F) << (0 * 7)));
// Add 10 bytes for ID3 header
id3_length += 10;
mad_stream_skip(&stream, id3_length);
}
continue;
}
else if (stream.error == MAD_ERROR_BUFLEN && inputEOF)
{
break;
}
else if (stream.error == MAD_ERROR_BUFLEN)
{
continue;
}
else
{
//NSLog(@"Unrecoverable error: %s", mad_stream_errorstr(&stream));
break;
}
}
framesDecoded++;
if (framesDecoded == 1)
{
sampleRate = frame.header.samplerate;
channels = MAD_NCHANNELS(&frame.header);
if(MAD_FLAG_LSF_EXT & frame.header.flags || MAD_FLAG_MPEG_2_5_EXT & frame.header.flags) {
switch(frame.header.layer) {
case MAD_LAYER_I: samplesPerMPEGFrame = 384; break;
case MAD_LAYER_II: samplesPerMPEGFrame = 1152; break;
case MAD_LAYER_III: samplesPerMPEGFrame = 576; break;
}
}
else {
switch(frame.header.layer) {
case MAD_LAYER_I: samplesPerMPEGFrame = 384; break;
case MAD_LAYER_II: samplesPerMPEGFrame = 1152; break;
case MAD_LAYER_III: samplesPerMPEGFrame = 1152; break;
}
}
unsigned ancillaryBitsRemaining = stream.anc_bitlen;
if(32 > ancillaryBitsRemaining)
continue;
uint32_t magic = mad_bit_read(&stream.anc_ptr, 32);
ancillaryBitsRemaining -= 32;
if('Xing' == magic || 'Info' == magic) {
unsigned i;
uint32_t flags = 0, frames = 0, bytes = 0, vbrScale = 0;
if(32 > ancillaryBitsRemaining)
continue;
flags = mad_bit_read(&stream.anc_ptr, 32);
ancillaryBitsRemaining -= 32;
// 4 byte value containing total frames
if(FRAMES_FLAG & flags) {
if(32 > ancillaryBitsRemaining)
continue;
frames = mad_bit_read(&stream.anc_ptr, 32);
ancillaryBitsRemaining -= 32;
// Determine number of samples, discounting encoder delay and padding
// Our concept of a frame is the same as CoreAudio's- one sample across all channels
totalFrames = frames * samplesPerMPEGFrame;
//NSLog(@"TOTAL READ FROM XING");
}
// 4 byte value containing total bytes
if(BYTES_FLAG & flags) {
if(32 > ancillaryBitsRemaining)
continue;
bytes = mad_bit_read(&stream.anc_ptr, 32);
ancillaryBitsRemaining -= 32;
}
// 100 bytes containing TOC information
if(TOC_FLAG & flags) {
if(8 * 100 > ancillaryBitsRemaining)
continue;
for(i = 0; i < 100; ++i)
/*_xingTOC[i] = */ mad_bit_read(&stream.anc_ptr, 8);
ancillaryBitsRemaining -= (8* 100);
}
// 4 byte value indicating encoded vbr scale
if(VBR_SCALE_FLAG & flags) {
if(32 > ancillaryBitsRemaining)
continue;
vbrScale = mad_bit_read(&stream.anc_ptr, 32);
ancillaryBitsRemaining -= 32;
}
framesDecoded = frames;
_foundXingHeader = YES;
// Loook for the LAME header next
// http://gabriel.mp3-tech.org/mp3infotag.html
if(32 > ancillaryBitsRemaining)
continue;
magic = mad_bit_read(&stream.anc_ptr, 32);
ancillaryBitsRemaining -= 32;
if('LAME' == magic) {
if(LAME_HEADER_SIZE > ancillaryBitsRemaining)
continue;
/*unsigned char versionString [5 + 1];
memset(versionString, 0, 6);*/
for(i = 0; i < 5; ++i)
/*versionString[i] =*/ mad_bit_read(&stream.anc_ptr, 8);
/*uint8_t infoTagRevision =*/ mad_bit_read(&stream.anc_ptr, 4);
/*uint8_t vbrMethod =*/ mad_bit_read(&stream.anc_ptr, 4);
/*uint8_t lowpassFilterValue =*/ mad_bit_read(&stream.anc_ptr, 8);
/*float peakSignalAmplitude =*/ mad_bit_read(&stream.anc_ptr, 32);
/*uint16_t radioReplayGain =*/ mad_bit_read(&stream.anc_ptr, 16);
/*uint16_t audiophileReplayGain =*/ mad_bit_read(&stream.anc_ptr, 16);
/*uint8_t encodingFlags =*/ mad_bit_read(&stream.anc_ptr, 4);
/*uint8_t athType =*/ mad_bit_read(&stream.anc_ptr, 4);
/*uint8_t lameBitrate =*/ mad_bit_read(&stream.anc_ptr, 8);
_startPadding = mad_bit_read(&stream.anc_ptr, 12);
_endPadding = mad_bit_read(&stream.anc_ptr, 12);
_startPadding += 528 + 1; //MDCT/filterbank delay
_endPadding -= 528 + 1;
/*uint8_t misc =*/ mad_bit_read(&stream.anc_ptr, 8);
uint8_t mp3Gain = mad_bit_read(&stream.anc_ptr, 8);
NSLog(@"Gain: %i", mp3Gain);
/*uint8_t unused =*/mad_bit_read(&stream.anc_ptr, 2);
/*uint8_t surroundInfo =*/ mad_bit_read(&stream.anc_ptr, 3);
/*uint16_t presetInfo =*/ mad_bit_read(&stream.anc_ptr, 11);
/*uint32_t musicGain =*/ mad_bit_read(&stream.anc_ptr, 32);
/*uint32_t musicCRC =*/ mad_bit_read(&stream.anc_ptr, 32);
/*uint32_t tagCRC =*/ mad_bit_read(&stream.anc_ptr, 32);
ancillaryBitsRemaining -= LAME_HEADER_SIZE;
_foundLAMEHeader = YES;
break;
}
}
}
else
{
totalFrames = (double)frame.header.samplerate * ((_fileSize - id3_length) / (frame.header.bitrate / 8.0));
//NSLog(@"Guestimating total samples");
break;
}
}
bitrate = ((double)((_fileSize - id3_length)*8)/1000.0) * (sampleRate/(double)totalFrames);
mad_frame_finish (&frame);
mad_stream_finish (&stream);
bytesPerFrame = sizeof(float) * channels;
[_source seek:0 whence:SEEK_SET];
inputEOF = NO;
NSLog(@"Mad properties: %@", [self properties]);
return YES;
}
- (BOOL)open:(id<CogSource>)source
{
[source retain];
[_source release];
_source = source;
/* First the structures used by libmad must be initialized. */
mad_stream_init(&_stream);
mad_frame_init(&_frame);
mad_synth_init(&_synth);
_firstFrame = YES;
//NSLog(@"OPEN: %i", _firstFrame);
inputEOF = NO;
if (![_source seekable])
{
//Decode the first frame to get the channels, samplerate, etc.
int r;
do {
r = [self decodeMPEGFrame];
NSLog(@"Decoding first frame: %i", r);
} while (r == 0);
return (r == -1 ? NO : YES);
}
return [self scanFile];
}
- (void)writeOutput
{
unsigned int startingSample = 0;
unsigned int sampleCount = _synth.pcm.length;
// NSLog(@"Position: %li/%li", _framesDecoded, totalFrames);
// NSLog(@"<%i, %i>", _startPadding, _endPadding);
// NSLog(@"Counts: %i, %i", startingSample, sampleCount);
if (_foundLAMEHeader) {
// We are at the beginning and need to skip frames
if (_startPadding > _framesDecoded) {
// NSLog(@"Skipping start.");
startingSample = _startPadding - _framesDecoded;
}
// Past the end of the file.
if (totalFrames - _endPadding <= _framesDecoded) {
// NSLog(@"End of file. Not writing.");
return;
}
// We haven't even gotten to the start yet
if (startingSample > sampleCount) {
// NSLog(@"Skipping entire sample");
_framesDecoded += _synth.pcm.length;
return;
}
// We are at the end of the file and need to read the last few frames
if (_framesDecoded + (sampleCount - startingSample) > totalFrames - _endPadding) {
// NSLog(@"End of file. %li", totalFrames - _endPadding - _framesDecoded);
sampleCount = totalFrames - _endPadding - _framesDecoded + startingSample;
}
}
//NSLog(@"Revised: %i, %i", startingSample, sampleCount);
_framesDecoded += _synth.pcm.length;
if (_outputFrames > 0) {
NSLog(@"LOSING FRAMES!");
}
_outputFrames = (sampleCount - startingSample);
if (_outputBuffer)
free(_outputBuffer);
_outputBuffer = (unsigned char *) malloc (_outputFrames * bytesPerFrame * sizeof (char));
int ch;
int i;
float *outputPtr = (float *) _outputBuffer;
float scale = 1.0 / MAD_F_ONE;
// samples [0 ... n]
for(i = startingSample; i < sampleCount; i++)
{
// channels [0 .. n] in this case LRLRLRLR
for (ch = 0; ch < channels; ch++)
{
float sample = _synth.pcm.samples[ch][i] * scale;
outputPtr[0] = sample;
outputPtr++;
}
}
// Output to a file
// FILE *f = fopen("data.raw", "a");
// fwrite(_outputBuffer, channels * 2, _outputFrames, f);
// fclose(f);
}
- (int)decodeMPEGFrame
{
if (_stream.buffer == NULL || _stream.error == MAD_ERROR_BUFLEN)
{
int inputToRead;
int inputRemaining;
if (_stream.next_frame != NULL)
{
inputRemaining = _stream.bufend - _stream.next_frame;
memmove(_inputBuffer, _stream.next_frame, inputRemaining);
inputToRead = INPUT_BUFFER_SIZE - inputRemaining;
}
else
{
inputToRead = INPUT_BUFFER_SIZE;
inputRemaining = 0;
}
int inputRead = [_source read:_inputBuffer + inputRemaining amount:INPUT_BUFFER_SIZE - inputRemaining];
if (inputRead == 0)
{
memset(_inputBuffer + inputRemaining + inputRead, 0, MAD_BUFFER_GUARD);
inputRead += MAD_BUFFER_GUARD;
inputEOF = YES;
}
mad_stream_buffer(&_stream, _inputBuffer, inputRead + inputRemaining);
_stream.error = MAD_ERROR_NONE;
//NSLog(@"Read stream.");
}
if (mad_frame_decode(&_frame, &_stream) == -1) {
if (MAD_RECOVERABLE (_stream.error))
{
const uint8_t *buffer = _stream.this_frame;
unsigned buflen = _stream.bufend - _stream.this_frame;
uint32_t id3_length = 0;
//No longer need ID3Tag framework
if(10 <= buflen && 0x49 == buffer[0] && 0x44 == buffer[1] && 0x33 == buffer[2]) {
id3_length = (((buffer[6] & 0x7F) << (3 * 7)) | ((buffer[7] & 0x7F) << (2 * 7)) |
((buffer[8] & 0x7F) << (1 * 7)) | ((buffer[9] & 0x7F) << (0 * 7)));
// Add 10 bytes for ID3 header
id3_length += 10;
mad_stream_skip(&_stream, id3_length);
}
NSLog(@"recoverable error");
return 0;
}
else if (MAD_ERROR_BUFLEN == _stream.error && inputEOF)
{
NSLog(@"EOF");
return -1;
}
else if (MAD_ERROR_BUFLEN == _stream.error)
{
//NSLog(@"Bufferlen");
return 0;
}
else
{
//NSLog(@"Unrecoverable stream error: %s", mad_stream_errorstr(&_stream));
return -1;
}
}
//NSLog(@"Decoded buffer.");
mad_synth_frame (&_synth, &_frame);
//NSLog(@"first frame: %i", _firstFrame);
if (_firstFrame)
{
_firstFrame = NO;
if (![_source seekable]) {
sampleRate = _frame.header.samplerate;
channels = MAD_NCHANNELS(&_frame.header);
bytesPerFrame = sizeof(float) * channels;
[self willChangeValueForKey:@"properties"];
[self didChangeValueForKey:@"properties"];
}
//NSLog(@"FIRST FRAME!!! %i %i", _foundXingHeader, _foundLAMEHeader);
if (_foundXingHeader) {
//NSLog(@"Skipping xing header.");
return 0;
}
}
return 1;
}
- (int)readAudio:(void *)buffer frames:(UInt32)frames
{
int framesRead = 0;
for (;;)
{
int framesRemaining = frames - framesRead;
int framesToCopy = (_outputFrames > framesRemaining ? framesRemaining : _outputFrames);
if (framesToCopy) {
memcpy(buffer + (framesRead * bytesPerFrame), _outputBuffer, framesToCopy*bytesPerFrame);
framesRead += framesToCopy;
if (framesToCopy != _outputFrames) {
memmove(_outputBuffer, _outputBuffer + (framesToCopy*bytesPerFrame), (_outputFrames - framesToCopy)*bytesPerFrame);
}
_outputFrames -= framesToCopy;
}
if (framesRead == frames)
break;
int r = [self decodeMPEGFrame];
//NSLog(@"Decoding frame: %i", r);
if (r == 0) //Recoverable error.
continue;
else if (r == -1) //Unrecoverable error
break;
[self writeOutput];
//NSLog(@"Wrote output");
}
//NSLog(@"Read: %i/%i", bytesRead, size);
return framesRead;
}
- (void)close
{
if (_source)
{
[_source close];
[_source release];
_source = nil;
}
if (_outputBuffer)
{
free(_outputBuffer);
_outputBuffer = NULL;
}
mad_synth_finish(&_synth);
mad_frame_finish(&_frame);
mad_stream_finish(&_stream);
}
- (long)seek:(long)frame
{
if (frame > totalFrames)
frame = totalFrames;
unsigned long new_position = ((double)frame / totalFrames) * _fileSize;
[_source seek:new_position whence:SEEK_SET];
mad_stream_buffer(&_stream, NULL, 0);
//Gapless busted after seek. Mp3 just doesn't have sample-accurate seeking. Maybe xing toc?
_framesDecoded = frame;
return frame;
}
- (NSDictionary *)properties
{
return [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithInt:channels],@"channels",
[NSNumber numberWithInt:32],@"bitsPerSample",
[NSNumber numberWithBool:YES],@"floatingPoint",
[NSNumber numberWithFloat:sampleRate],@"sampleRate",
[NSNumber numberWithInt:bitrate],@"bitrate",
[NSNumber numberWithLong:totalFrames - (_startPadding + _endPadding)],@"totalFrames",
[NSNumber numberWithBool:[_source seekable]], @"seekable",
@"host", @"endian",
nil];
}
+ (NSArray *)fileTypes
{
return [NSArray arrayWithObjects:@"mp3",nil];
}
+ (NSArray *)mimeTypes
{
return [NSArray arrayWithObjects:@"audio/mpeg", @"audio/x-mp3", nil];
}
@end

7
Plugins/MAD/MAD_Prefix.pch
View File

@ -1,7 +0,0 @@
//
// Prefix header for all source files of the 'MAD' target in the 'MAD' project.
//
#ifdef __OBJC__
#import <Cocoa/Cocoa.h>
#endif