86 lines
4.1 KiB
Plaintext
86 lines
4.1 KiB
Plaintext
////////////////////////////////////////////////////////////////////////////
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// **** WAVPACK **** //
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// Hybrid Lossless Wavefile Compressor //
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// Copyright (c) 1998 - 2005 Conifer Software. //
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// All Rights Reserved. //
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// Distributed under the BSD Software License (see license.txt) //
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////////////////////////////////////////////////////////////////////////////
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This package contains all the source code required to build the WavPack
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command-line programs and the WavPack library and it has been tested on many
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platforms. For example code using the library you might want to check some
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of the plugin sources in the Windows source release.
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To build everything, type:
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1. ./configure
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2. make
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3. make install (optionally, to install into /usr/local/bin)
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Notes:
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1. This code is designed to be much easier to port to other platforms than
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the previous version of WavPack. File I/O is done with streams and all file
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functions (except "fopen") are handled in a wrapper in the "utils.c"
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module. The code is even written to be endian-independent and a compile
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option is provided to eliminate the DOS-specific directory searches.
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To maintain compatibility on various platforms, the following conventions
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are used:
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a "short" must be 16-bits
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an "int" must be at least 16-bits, but may be larger
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For version 4.2 references to "long" variables were eliminated to allow
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compilation on 64-bit machines. For version 4.3 "char" types may default
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to signed or unsigned.
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2. For WavPack file decoding, a library interface in "wputils.c" provides all
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the functionality required for both the winamp plugin and the "wvunpack"
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command-line program (including the transparent decoding of "correction"
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files). There is also an alternate entry point that uses reader callbacks
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for all input, although in this case it is the caller's responsibility to
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to open the "correction" file. It is no longer necessary to manipulate the
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WavPack structures directly; everything is handled with function calls. In
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fact, a new header file called "wputils.h" can be used that hides all the
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WavPack internals from the application.
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3. For WavPack file creation, the library interface in "wputils.c" provides
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all the functionality for both the Audition filter and the "wavpack"
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command-line program. No file I/O is performed by the library when creating
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WavPack files. Instead, the user supplies a "write_block" function that
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accepts completed WavPack blocks. For version 4.2 limited functionality
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has been added to append APEv2 tags to WavPack files during creation.
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4. The following #define's are used to control the optimum configuration of
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the library for the desired application and must be the same for the
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compilation of ALL files:
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UNPACK to unpack audio samples from WavPack files
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PACK to create WavPack files from raw audio data
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INFO_ONLY to obtain information from WavPack files, but not audio
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SEEKING to allow seeking to a specific sample index (unpack only)
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USE_FSTREAMS to open WavPack files by name using fstreams (via fopen)
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TAGS to read specified fields from ID3v1 and APEv2 tags and
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create APEv2 tags
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VER3 to handle WavPack files from versions prior to 4.0
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WIN32 required for Win32 platform
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The following files are required for various configurations:
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UNPACK or
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INFO_ONLY: wputils.c unpack.c words.c bits.c metadata.c float.c
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PACK: wputils.c pack.c extra1.c extra2.c
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words.c bits.c metadata.c float.c
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PACK and
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UNPACK: wputils.c unpack.c pack.c extra1.c extra2.c
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words.c bits.c metadata.c float.c
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5. An alternate version of this library is available specifically designed
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for "resource limited" CPUs or hardware decoding. This "tiny" decoder
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library works with less than 32k of code and less than 4k of data.
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6. Questions or comments should be directed to david@wavpack.com
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