795 lines
31 KiB
C
795 lines
31 KiB
C
////////////////////////////////////////////////////////////////////////////
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// **** WAVPACK **** //
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// Hybrid Lossless Wavefile Compressor //
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// Copyright (c) 1998 - 2006 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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// wavpack_local.h
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#ifndef WAVPACK_LOCAL_H
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#define WAVPACK_LOCAL_H
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#if defined(WIN32)
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#define FASTCALL __fastcall
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#else
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#define FASTCALL
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#endif
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#if defined(WIN32) || \
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(defined(BYTE_ORDER) && defined(LITTLE_ENDIAN) && (BYTE_ORDER == LITTLE_ENDIAN))
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#define BITSTREAM_SHORTS // use "shorts" for reading/writing bitstreams
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// (only works on little-endian machines)
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#endif
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#include <sys/types.h>
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// This header file contains all the definitions required by WavPack.
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#if defined(_WIN32) && !defined(__MINGW32__)
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#include <stdlib.h>
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typedef unsigned __int64 uint64_t;
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typedef unsigned __int32 uint32_t;
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typedef unsigned __int16 uint16_t;
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typedef unsigned __int8 uint8_t;
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typedef __int64 int64_t;
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typedef __int32 int32_t;
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typedef __int16 int16_t;
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typedef __int8 int8_t;
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typedef float float32_t;
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#else
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#include <inttypes.h>
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#endif
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// Because the C99 specification states that "The order of allocation of
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// bit-fields within a unit (high-order to low-order or low-order to
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// high-order) is implementation-defined" (6.7.2.1), I decided to change
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// the representation of floating-point values from a structure of
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// bit-fields to a 32-bit integer with access macros. Note that the WavPack
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// library doesn't use any floating-point math to implement compression of
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// floating-point data (although a little floating-point math is used in
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// high-level functions unrelated to the codec).
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typedef int32_t f32;
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#define get_mantissa(f) ((f) & 0x7fffff)
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#define get_exponent(f) (((f) >> 23) & 0xff)
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#define get_sign(f) (((f) >> 31) & 0x1)
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#define set_mantissa(f,v) (f) ^= (((f) ^ (v)) & 0x7fffff)
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#define set_exponent(f,v) (f) ^= (((f) ^ ((v) << 23)) & 0x7f800000)
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#define set_sign(f,v) (f) ^= (((f) ^ ((v) << 31)) & 0x80000000)
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#include <stdio.h>
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#define FALSE 0
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#define TRUE 1
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// ID3v1 and APEv2 TAG formats (may occur at the end of WavPack files)
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typedef struct {
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char tag_id [3], title [30], artist [30], album [30];
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char year [4], comment [30], genre;
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} ID3_Tag;
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typedef struct {
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char ID [8];
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int32_t version, length, item_count, flags;
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char res [8];
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} APE_Tag_Hdr;
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#define APE_Tag_Hdr_Format "8LLLL"
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#define APE_TAG_TYPE_TEXT 0x0
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#define APE_TAG_TYPE_BINARY 0x1
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#define APE_TAG_THIS_IS_HEADER 0x20000000
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#define APE_TAG_CONTAINS_HEADER 0x80000000
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#define APE_TAG_MAX_LENGTH (1024 * 1024)
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typedef struct {
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int32_t tag_file_pos;
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ID3_Tag id3_tag;
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APE_Tag_Hdr ape_tag_hdr;
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unsigned char *ape_tag_data;
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} M_Tag;
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// RIFF / wav header formats (these occur at the beginning of both wav files
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// and pre-4.0 WavPack files that are not in the "raw" mode)
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typedef struct {
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char ckID [4];
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uint32_t ckSize;
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char formType [4];
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} RiffChunkHeader;
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typedef struct {
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char ckID [4];
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uint32_t ckSize;
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} ChunkHeader;
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#define ChunkHeaderFormat "4L"
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typedef struct {
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unsigned short FormatTag, NumChannels;
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uint32_t SampleRate, BytesPerSecond;
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unsigned short BlockAlign, BitsPerSample;
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unsigned short cbSize, ValidBitsPerSample;
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int32_t ChannelMask;
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unsigned short SubFormat;
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char GUID [14];
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} WaveHeader;
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#define WaveHeaderFormat "SSLLSSSSLS"
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////////////////////////////// WavPack Header /////////////////////////////////
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// Note that this is the ONLY structure that is written to (or read from)
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// WavPack 4.0 files, and is the preamble to every block in both the .wv
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// and .wvc files.
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typedef struct {
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char ckID [4];
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uint32_t ckSize;
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short version;
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unsigned char track_no, index_no;
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uint32_t total_samples, block_index, block_samples, flags, crc;
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} WavpackHeader;
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#define WavpackHeaderFormat "4LS2LLLLL"
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// or-values for "flags"
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#define BYTES_STORED 3 // 1-4 bytes/sample
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#define MONO_FLAG 4 // not stereo
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#define HYBRID_FLAG 8 // hybrid mode
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#define JOINT_STEREO 0x10 // joint stereo
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#define CROSS_DECORR 0x20 // no-delay cross decorrelation
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#define HYBRID_SHAPE 0x40 // noise shape (hybrid mode only)
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#define FLOAT_DATA 0x80 // ieee 32-bit floating point data
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#define INT32_DATA 0x100 // special extended int handling
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#define HYBRID_BITRATE 0x200 // bitrate noise (hybrid mode only)
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#define HYBRID_BALANCE 0x400 // balance noise (hybrid stereo mode only)
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#define INITIAL_BLOCK 0x800 // initial block of multichannel segment
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#define FINAL_BLOCK 0x1000 // final block of multichannel segment
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#define SHIFT_LSB 13
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#define SHIFT_MASK (0x1fL << SHIFT_LSB)
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#define MAG_LSB 18
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#define MAG_MASK (0x1fL << MAG_LSB)
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#define SRATE_LSB 23
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#define SRATE_MASK (0xfL << SRATE_LSB)
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#define FALSE_STEREO 0x40000000 // block is stereo, but data is mono
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#define IGNORED_FLAGS 0x18000000 // reserved, but ignore if encountered
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#define NEW_SHAPING 0x20000000 // use IIR filter for negative shaping
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#define UNKNOWN_FLAGS 0x80000000 // also reserved, but refuse decode if
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// encountered
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#define MONO_DATA (MONO_FLAG | FALSE_STEREO)
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#define MIN_STREAM_VERS 0x402 // lowest stream version we'll decode
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#define MAX_STREAM_VERS 0x410 // highest stream version we'll decode or encode
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#define CUR_STREAM_VERS 0x407 // stream version we are [normally] writing now
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//////////////////////////// WavPack Metadata /////////////////////////////////
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// This is an internal representation of metadata.
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typedef struct {
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int32_t byte_length;
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void *data;
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unsigned char id;
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} WavpackMetadata;
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#define ID_UNIQUE 0x3f
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#define ID_OPTIONAL_DATA 0x20
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#define ID_ODD_SIZE 0x40
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#define ID_LARGE 0x80
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#define ID_DUMMY 0x0
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#define ID_ENCODER_INFO 0x1
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#define ID_DECORR_TERMS 0x2
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#define ID_DECORR_WEIGHTS 0x3
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#define ID_DECORR_SAMPLES 0x4
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#define ID_ENTROPY_VARS 0x5
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#define ID_HYBRID_PROFILE 0x6
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#define ID_SHAPING_WEIGHTS 0x7
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#define ID_FLOAT_INFO 0x8
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#define ID_INT32_INFO 0x9
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#define ID_WV_BITSTREAM 0xa
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#define ID_WVC_BITSTREAM 0xb
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#define ID_WVX_BITSTREAM 0xc
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#define ID_CHANNEL_INFO 0xd
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#define ID_RIFF_HEADER (ID_OPTIONAL_DATA | 0x1)
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#define ID_RIFF_TRAILER (ID_OPTIONAL_DATA | 0x2)
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#define ID_REPLAY_GAIN (ID_OPTIONAL_DATA | 0x3)
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#define ID_CUESHEET (ID_OPTIONAL_DATA | 0x4)
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#define ID_CONFIG_BLOCK (ID_OPTIONAL_DATA | 0x5)
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#define ID_MD5_CHECKSUM (ID_OPTIONAL_DATA | 0x6)
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#define ID_SAMPLE_RATE (ID_OPTIONAL_DATA | 0x7)
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///////////////////////// WavPack Configuration ///////////////////////////////
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// This internal structure is used during encode to provide configuration to
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// the encoding engine and during decoding to provide fle information back to
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// the higher level functions. Not all fields are used in both modes.
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typedef struct {
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float bitrate, shaping_weight;
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int bits_per_sample, bytes_per_sample;
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int qmode, flags, xmode, num_channels, float_norm_exp;
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int32_t block_samples, extra_flags, sample_rate, channel_mask;
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unsigned char md5_checksum [16], md5_read;
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int num_tag_strings;
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char **tag_strings;
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} WavpackConfig;
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#define CONFIG_BYTES_STORED 3 // 1-4 bytes/sample
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#define CONFIG_MONO_FLAG 4 // not stereo
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#define CONFIG_HYBRID_FLAG 8 // hybrid mode
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#define CONFIG_JOINT_STEREO 0x10 // joint stereo
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#define CONFIG_CROSS_DECORR 0x20 // no-delay cross decorrelation
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#define CONFIG_HYBRID_SHAPE 0x40 // noise shape (hybrid mode only)
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#define CONFIG_FLOAT_DATA 0x80 // ieee 32-bit floating point data
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#define CONFIG_FAST_FLAG 0x200 // fast mode
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#define CONFIG_HIGH_FLAG 0x800 // high quality mode
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#define CONFIG_VERY_HIGH_FLAG 0x1000 // very high
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#define CONFIG_BITRATE_KBPS 0x2000 // bitrate is kbps, not bits / sample
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#define CONFIG_AUTO_SHAPING 0x4000 // automatic noise shaping
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#define CONFIG_SHAPE_OVERRIDE 0x8000 // shaping mode specified
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#define CONFIG_JOINT_OVERRIDE 0x10000 // joint-stereo mode specified
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#define CONFIG_DYNAMIC_SHAPING 0x20000 // dynamic noise shaping
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#define CONFIG_CREATE_EXE 0x40000 // create executable
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#define CONFIG_CREATE_WVC 0x80000 // create correction file
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#define CONFIG_OPTIMIZE_WVC 0x100000 // maximize bybrid compression
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#define CONFIG_CALC_NOISE 0x800000 // calc noise in hybrid mode
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#define CONFIG_LOSSY_MODE 0x1000000 // obsolete (for information)
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#define CONFIG_EXTRA_MODE 0x2000000 // extra processing mode
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#define CONFIG_SKIP_WVX 0x4000000 // no wvx stream w/ floats & big ints
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#define CONFIG_MD5_CHECKSUM 0x8000000 // compute & store MD5 signature
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#define CONFIG_MERGE_BLOCKS 0x10000000 // merge blocks of equal redundancy (for lossyWAV)
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#define CONFIG_PAIR_UNDEF_CHANS 0x20000000 // encode undefined channels in stereo pairs
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#define CONFIG_OPTIMIZE_MONO 0x80000000 // optimize for mono streams posing as stereo
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/*
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* These config flags were never actually used, or are no longer used, or are
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* used for something else now. They may be used in the future for what they
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* say, or for something else. WavPack files in the wild *may* have some of
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* these bit set in their config flags (with these older meanings), but only
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* if the stream version is 0x410 or less than 0x407. Of course, this is not
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* very important because once the file has been encoded, the config bits are
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* just for information purposes (i.e., they do not affect decoding),
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*
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#define CONFIG_ADOBE_MODE 0x100 // "adobe" mode for 32-bit floats
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#define CONFIG_VERY_FAST_FLAG 0x400 // double fast
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#define CONFIG_COPY_TIME 0x20000 // copy file-time from source
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#define CONFIG_QUALITY_MODE 0x200000 // psychoacoustic quality mode
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#define CONFIG_RAW_FLAG 0x400000 // raw mode (not implemented yet)
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#define CONFIG_QUIET_MODE 0x10000000 // don't report progress %
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#define CONFIG_IGNORE_LENGTH 0x20000000 // ignore length in wav header
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#define CONFIG_NEW_RIFF_HEADER 0x40000000 // generate new RIFF wav header
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*
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*/
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#define EXTRA_SCAN_ONLY 1
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#define EXTRA_STEREO_MODES 2
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#define EXTRA_TRY_DELTAS 8
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#define EXTRA_ADJUST_DELTAS 16
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#define EXTRA_SORT_FIRST 32
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#define EXTRA_BRANCHES 0x1c0
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#define EXTRA_SKIP_8TO16 512
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#define EXTRA_TERMS 0x3c00
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#define EXTRA_DUMP_TERMS 16384
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#define EXTRA_SORT_LAST 32768
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//////////////////////////////// WavPack Stream ///////////////////////////////
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// This internal structure contains everything required to handle a WavPack
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// "stream", which is defined as a stereo or mono stream of audio samples. For
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// multichannel audio several of these would be required. Each stream contains
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// pointers to hold a complete allocated block of WavPack data, although it's
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// possible to decode WavPack blocks without buffering an entire block.
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typedef struct bs {
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#ifdef BITSTREAM_SHORTS
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unsigned short *buf, *end, *ptr;
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#else
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unsigned char *buf, *end, *ptr;
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#endif
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void (*wrap)(struct bs *bs);
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int error, bc;
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uint32_t sr;
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} Bitstream;
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#define MAX_WRAPPER_BYTES 16777216
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#define NEW_MAX_STREAMS 4096
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#define OLD_MAX_STREAMS 8
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#define MAX_NTERMS 16
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#define MAX_TERM 8
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struct decorr_pass {
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int term, delta, weight_A, weight_B;
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int32_t samples_A [MAX_TERM], samples_B [MAX_TERM];
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int32_t aweight_A, aweight_B;
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int32_t sum_A, sum_B;
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};
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typedef struct {
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char joint_stereo, delta, terms [MAX_NTERMS+1];
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} WavpackDecorrSpec;
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struct entropy_data {
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uint32_t median [3], slow_level, error_limit;
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};
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struct words_data {
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uint32_t bitrate_delta [2], bitrate_acc [2];
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uint32_t pend_data, holding_one, zeros_acc;
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int holding_zero, pend_count;
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struct entropy_data c [2];
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};
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typedef struct {
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WavpackHeader wphdr;
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struct words_data w;
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unsigned char *blockbuff, *blockend;
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unsigned char *block2buff, *block2end;
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int32_t *sample_buffer;
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int bits, num_terms, mute_error, joint_stereo, false_stereo, shift;
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int num_decorrs, num_passes, best_decorr, mask_decorr;
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uint32_t sample_index, crc, crc_x, crc_wvx;
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Bitstream wvbits, wvcbits, wvxbits;
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int init_done, wvc_skip;
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float delta_decay;
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unsigned char int32_sent_bits, int32_zeros, int32_ones, int32_dups;
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unsigned char float_flags, float_shift, float_max_exp, float_norm_exp;
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struct {
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int32_t shaping_acc [2], shaping_delta [2], error [2];
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double noise_sum, noise_ave, noise_max;
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short *shaping_data, *shaping_array;
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int32_t shaping_samples;
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} dc;
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struct decorr_pass decorr_passes [MAX_NTERMS], analysis_pass;
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const WavpackDecorrSpec *decorr_specs;
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} WavpackStream;
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// flags for float_flags:
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#define FLOAT_SHIFT_ONES 1 // bits left-shifted into float = '1'
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#define FLOAT_SHIFT_SAME 2 // bits left-shifted into float are the same
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#define FLOAT_SHIFT_SENT 4 // bits shifted into float are sent literally
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#define FLOAT_ZEROS_SENT 8 // "zeros" are not all real zeros
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#define FLOAT_NEG_ZEROS 0x10 // contains negative zeros
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#define FLOAT_EXCEPTIONS 0x20 // contains exceptions (inf, nan, etc.)
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/////////////////////////////// WavPack Context ///////////////////////////////
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// This internal structure holds everything required to encode or decode WavPack
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// files. It is recommended that direct access to this structure be minimized
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// and the provided utilities used instead.
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typedef struct {
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int32_t (*read_bytes)(void *id, void *data, int32_t bcount);
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uint32_t (*get_pos)(void *id);
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int (*set_pos_abs)(void *id, uint32_t pos);
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int (*set_pos_rel)(void *id, int32_t delta, int mode);
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int (*push_back_byte)(void *id, int c);
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uint32_t (*get_length)(void *id);
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int (*can_seek)(void *id);
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// this callback is for writing edited tags only
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int32_t (*write_bytes)(void *id, void *data, int32_t bcount);
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} WavpackStreamReader;
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typedef int (*WavpackBlockOutput)(void *id, void *data, int32_t bcount);
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typedef struct {
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WavpackConfig config;
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WavpackMetadata *metadata;
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uint32_t metabytes;
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int metacount;
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unsigned char *wrapper_data;
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uint32_t wrapper_bytes;
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WavpackBlockOutput blockout;
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void *wv_out, *wvc_out;
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WavpackStreamReader *reader;
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void *wv_in, *wvc_in;
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uint32_t filelen, file2len, filepos, file2pos, total_samples, crc_errors, first_flags;
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int wvc_flag, open_flags, norm_offset, reduced_channels, lossy_blocks, close_files;
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uint32_t block_samples, ave_block_samples, block_boundary, max_samples, acc_samples, initial_index, riff_trailer_bytes;
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int riff_header_added, riff_header_created;
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M_Tag m_tag;
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int current_stream, num_streams, max_streams, stream_version;
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WavpackStream **streams;
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void *stream3;
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char error_message [80];
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} WavpackContext;
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//////////////////////// function prototypes and macros //////////////////////
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#define CLEAR(destin) memset (&destin, 0, sizeof (destin));
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// These macros implement the weight application and update operations
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// that are at the heart of the decorrelation loops. Note that there are
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// sometimes two and even three versions of each macro. Theses should be
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// equivalent and produce identical results, but some may perform better
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// or worse on a given architecture.
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#if 1 // PERFCOND - apply decorrelation weight when no 32-bit overflow possible
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#define apply_weight_i(weight, sample) ((weight * sample + 512) >> 10)
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#else
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#define apply_weight_i(weight, sample) ((((weight * sample) >> 8) + 2) >> 2)
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#endif
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#if 1 // PERFCOND - apply decorrelation weight when 32-bit overflow is possible
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#define apply_weight_f(weight, sample) (((((sample & 0xffff) * weight) >> 9) + \
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(((sample & ~0xffff) >> 9) * weight) + 1) >> 1)
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#else
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#define apply_weight_f(weight, sample) ((int32_t)floor(((double) weight * sample + 512.0) / 1024.0))
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#endif
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#if 1 // PERFCOND - universal version that checks input magnitude (or simply uses 64-bit ints)
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#define apply_weight(weight, sample) (sample != (short) sample ? \
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apply_weight_f (weight, sample) : apply_weight_i (weight, sample))
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#else
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#define apply_weight(weight, sample) ((int32_t)((weight * (int64_t) sample + 512) >> 10))
|
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#endif
|
|
|
|
#if 1 // PERFCOND
|
|
#define update_weight(weight, delta, source, result) \
|
|
if (source && result) { int32_t s = (int32_t) (source ^ result) >> 31; weight = (delta ^ s) + (weight - s); }
|
|
#elif 1
|
|
#define update_weight(weight, delta, source, result) \
|
|
if (source && result) weight += (((source ^ result) >> 30) | 1) * delta;
|
|
#else
|
|
#define update_weight(weight, delta, source, result) \
|
|
if (source && result) (source ^ result) < 0 ? (weight -= delta) : (weight += delta);
|
|
#endif
|
|
|
|
#define update_weight_d2(weight, delta, source, result) \
|
|
if (source && result) weight -= (((source ^ result) >> 29) & 4) - 2;
|
|
|
|
#define update_weight_clip(weight, delta, source, result) \
|
|
if (source && result) { \
|
|
const int32_t s = (source ^ result) >> 31; \
|
|
if ((weight = (weight ^ s) + (delta - s)) > 1024) weight = 1024; \
|
|
weight = (weight ^ s) - s; \
|
|
}
|
|
|
|
#define update_weight_clip_d2(weight, delta, source, result) \
|
|
if (source && result) { \
|
|
const int32_t s = (source ^ result) >> 31; \
|
|
if ((weight = (weight ^ s) + (2 - s)) > 1024) weight = 1024; \
|
|
weight = (weight ^ s) - s; \
|
|
}
|
|
|
|
// bits.c
|
|
|
|
void bs_open_read (Bitstream *bs, void *buffer_start, void *buffer_end);
|
|
void bs_open_write (Bitstream *bs, void *buffer_start, void *buffer_end);
|
|
uint32_t bs_close_read (Bitstream *bs);
|
|
uint32_t bs_close_write (Bitstream *bs);
|
|
|
|
int DoReadFile (FILE *hFile, void *lpBuffer, uint32_t nNumberOfBytesToRead, uint32_t *lpNumberOfBytesRead);
|
|
int DoWriteFile (FILE *hFile, void *lpBuffer, uint32_t nNumberOfBytesToWrite, uint32_t *lpNumberOfBytesWritten);
|
|
uint32_t DoGetFileSize (FILE *hFile), DoGetFilePosition (FILE *hFile);
|
|
int DoSetFilePositionRelative (FILE *hFile, int32_t pos, int mode);
|
|
int DoSetFilePositionAbsolute (FILE *hFile, uint32_t pos);
|
|
int DoUngetc (int c, FILE *hFile), DoDeleteFile (char *filename);
|
|
int DoCloseHandle (FILE *hFile), DoTruncateFile (FILE *hFile);
|
|
|
|
#define bs_is_open(bs) ((bs)->ptr != NULL)
|
|
|
|
#define getbit(bs) ( \
|
|
(((bs)->bc) ? \
|
|
((bs)->bc--, (bs)->sr & 1) : \
|
|
(((++((bs)->ptr) != (bs)->end) ? (void) 0 : (bs)->wrap (bs)), (bs)->bc = sizeof (*((bs)->ptr)) * 8 - 1, ((bs)->sr = *((bs)->ptr)) & 1) \
|
|
) ? \
|
|
((bs)->sr >>= 1, 1) : \
|
|
((bs)->sr >>= 1, 0) \
|
|
)
|
|
|
|
#define getbits(value, nbits, bs) { \
|
|
while ((nbits) > (bs)->bc) { \
|
|
if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \
|
|
(bs)->sr |= (int32_t)*((bs)->ptr) << (bs)->bc; \
|
|
(bs)->bc += sizeof (*((bs)->ptr)) * 8; \
|
|
} \
|
|
*(value) = (bs)->sr; \
|
|
if ((bs)->bc > 32) { \
|
|
(bs)->bc -= (nbits); \
|
|
(bs)->sr = *((bs)->ptr) >> (sizeof (*((bs)->ptr)) * 8 - (bs)->bc); \
|
|
} \
|
|
else { \
|
|
(bs)->bc -= (nbits); \
|
|
(bs)->sr >>= (nbits); \
|
|
} \
|
|
}
|
|
|
|
#define putbit(bit, bs) { if (bit) (bs)->sr |= (1 << (bs)->bc); \
|
|
if (++((bs)->bc) == sizeof (*((bs)->ptr)) * 8) { \
|
|
*((bs)->ptr) = (bs)->sr; \
|
|
(bs)->sr = (bs)->bc = 0; \
|
|
if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \
|
|
}}
|
|
|
|
#define putbit_0(bs) { \
|
|
if (++((bs)->bc) == sizeof (*((bs)->ptr)) * 8) { \
|
|
*((bs)->ptr) = (bs)->sr; \
|
|
(bs)->sr = (bs)->bc = 0; \
|
|
if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \
|
|
}}
|
|
|
|
#define putbit_1(bs) { (bs)->sr |= (1 << (bs)->bc); \
|
|
if (++((bs)->bc) == sizeof (*((bs)->ptr)) * 8) { \
|
|
*((bs)->ptr) = (bs)->sr; \
|
|
(bs)->sr = (bs)->bc = 0; \
|
|
if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \
|
|
}}
|
|
|
|
#define putbits(value, nbits, bs) { \
|
|
(bs)->sr |= (int32_t)(value) << (bs)->bc; \
|
|
if (((bs)->bc += (nbits)) >= sizeof (*((bs)->ptr)) * 8) \
|
|
do { \
|
|
*((bs)->ptr) = (bs)->sr; \
|
|
(bs)->sr >>= sizeof (*((bs)->ptr)) * 8; \
|
|
if (((bs)->bc -= sizeof (*((bs)->ptr)) * 8) > 32 - sizeof (*((bs)->ptr)) * 8) \
|
|
(bs)->sr |= ((value) >> ((nbits) - (bs)->bc)); \
|
|
if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \
|
|
} while ((bs)->bc >= sizeof (*((bs)->ptr)) * 8); \
|
|
}
|
|
|
|
void little_endian_to_native (void *data, char *format);
|
|
void native_to_little_endian (void *data, char *format);
|
|
|
|
// pack.c
|
|
|
|
void pack_init (WavpackContext *wpc);
|
|
int pack_block (WavpackContext *wpc, int32_t *buffer);
|
|
double WavpackGetEncodedNoise (WavpackContext *wpc, double *peak);
|
|
|
|
// unpack.c
|
|
|
|
int unpack_init (WavpackContext *wpc);
|
|
int init_wv_bitstream (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int init_wvc_bitstream (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int init_wvx_bitstream (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int read_decorr_terms (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int read_decorr_weights (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int read_decorr_samples (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int read_shaping_info (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int read_float_info (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int read_int32_info (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int read_channel_info (WavpackContext *wpc, WavpackMetadata *wpmd);
|
|
int read_config_info (WavpackContext *wpc, WavpackMetadata *wpmd);
|
|
int read_sample_rate (WavpackContext *wpc, WavpackMetadata *wpmd);
|
|
int read_wrapper_data (WavpackContext *wpc, WavpackMetadata *wpmd);
|
|
int32_t unpack_samples (WavpackContext *wpc, int32_t *buffer, uint32_t sample_count);
|
|
int check_crc_error (WavpackContext *wpc);
|
|
|
|
// unpack3.c
|
|
|
|
WavpackContext *open_file3 (WavpackContext *wpc, char *error);
|
|
int32_t unpack_samples3 (WavpackContext *wpc, int32_t *buffer, uint32_t sample_count);
|
|
int seek_sample3 (WavpackContext *wpc, uint32_t desired_index);
|
|
uint32_t get_sample_index3 (WavpackContext *wpc);
|
|
void free_stream3 (WavpackContext *wpc);
|
|
int get_version3 (WavpackContext *wpc);
|
|
|
|
// metadata.c stuff
|
|
|
|
int read_metadata_buff (WavpackMetadata *wpmd, unsigned char *blockbuff, unsigned char **buffptr);
|
|
int write_metadata_block (WavpackContext *wpc);
|
|
int copy_metadata (WavpackMetadata *wpmd, unsigned char *buffer_start, unsigned char *buffer_end);
|
|
int add_to_metadata (WavpackContext *wpc, void *data, uint32_t bcount, unsigned char id);
|
|
int process_metadata (WavpackContext *wpc, WavpackMetadata *wpmd);
|
|
void free_metadata (WavpackMetadata *wpmd);
|
|
|
|
// words.c stuff
|
|
|
|
void init_words (WavpackStream *wps);
|
|
void word_set_bitrate (WavpackStream *wps);
|
|
void write_entropy_vars (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
void write_hybrid_profile (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int read_entropy_vars (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int read_hybrid_profile (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int32_t FASTCALL send_word (WavpackStream *wps, int32_t value, int chan);
|
|
void send_words_lossless (WavpackStream *wps, int32_t *buffer, int32_t nsamples);
|
|
int32_t FASTCALL get_word (WavpackStream *wps, int chan, int32_t *correction);
|
|
int32_t get_words_lossless (WavpackStream *wps, int32_t *buffer, int32_t nsamples);
|
|
void flush_word (WavpackStream *wps);
|
|
int32_t nosend_word (WavpackStream *wps, int32_t value, int chan);
|
|
void scan_word (WavpackStream *wps, int32_t *samples, uint32_t num_samples, int dir);
|
|
|
|
int log2s (int32_t value);
|
|
int32_t exp2s (int log);
|
|
uint32_t log2buffer (int32_t *samples, uint32_t num_samples, int limit);
|
|
|
|
signed char store_weight (int weight);
|
|
int restore_weight (signed char weight);
|
|
|
|
#define WORD_EOF ((int32_t)(1L << 31))
|
|
|
|
// float.c
|
|
|
|
void write_float_info (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
int scan_float_data (WavpackStream *wps, f32 *values, int32_t num_values);
|
|
void send_float_data (WavpackStream *wps, f32 *values, int32_t num_values);
|
|
int read_float_info (WavpackStream *wps, WavpackMetadata *wpmd);
|
|
void float_values (WavpackStream *wps, int32_t *values, int32_t num_values);
|
|
void WavpackFloatNormalize (int32_t *values, int32_t num_values, int delta_exp);
|
|
|
|
// extra?.c
|
|
|
|
// void analyze_stereo (WavpackContext *wpc, int32_t *samples);
|
|
// void analyze_mono (WavpackContext *wpc, int32_t *samples);
|
|
void execute_stereo (WavpackContext *wpc, int32_t *samples, int no_history, int do_samples);
|
|
void execute_mono (WavpackContext *wpc, int32_t *samples, int no_history, int do_samples);
|
|
|
|
// wputils.c
|
|
|
|
WavpackContext *WavpackOpenFileInputEx (WavpackStreamReader *reader, void *wv_id, void *wvc_id, char *error, int flags, int norm_offset);
|
|
WavpackContext *WavpackOpenFileInput (const char *infilename, char *error, int flags, int norm_offset);
|
|
|
|
#define OPEN_WVC 0x1 // open/read "correction" file
|
|
#define OPEN_TAGS 0x2 // read ID3v1 / APEv2 tags (seekable file)
|
|
#define OPEN_WRAPPER 0x4 // make audio wrapper available (i.e. RIFF)
|
|
#define OPEN_2CH_MAX 0x8 // open multichannel as stereo (no downmix)
|
|
#define OPEN_NORMALIZE 0x10 // normalize floating point data to +/- 1.0
|
|
#define OPEN_STREAMING 0x20 // "streaming" mode blindly unpacks blocks
|
|
// w/o regard to header file position info
|
|
#define OPEN_EDIT_TAGS 0x40 // allow editing of tags
|
|
|
|
int WavpackGetMode (WavpackContext *wpc);
|
|
|
|
#define MODE_WVC 0x1
|
|
#define MODE_LOSSLESS 0x2
|
|
#define MODE_HYBRID 0x4
|
|
#define MODE_FLOAT 0x8
|
|
#define MODE_VALID_TAG 0x10
|
|
#define MODE_HIGH 0x20
|
|
#define MODE_FAST 0x40
|
|
#define MODE_EXTRA 0x80 // extra mode used, see MODE_XMODE for possible level
|
|
#define MODE_APETAG 0x100
|
|
#define MODE_SFX 0x200
|
|
#define MODE_VERY_HIGH 0x400
|
|
#define MODE_MD5 0x800
|
|
#define MODE_XMODE 0x7000 // mask for extra level (1-6, 0=unknown)
|
|
#define MODE_DNS 0x8000
|
|
|
|
char *WavpackGetErrorMessage (WavpackContext *wpc);
|
|
int WavpackGetVersion (WavpackContext *wpc);
|
|
uint32_t WavpackUnpackSamples (WavpackContext *wpc, int32_t *buffer, uint32_t samples);
|
|
uint32_t WavpackGetNumSamples (WavpackContext *wpc);
|
|
uint32_t WavpackGetSampleIndex (WavpackContext *wpc);
|
|
int WavpackGetNumErrors (WavpackContext *wpc);
|
|
int WavpackLossyBlocks (WavpackContext *wpc);
|
|
int WavpackSeekSample (WavpackContext *wpc, uint32_t sample);
|
|
WavpackContext *WavpackCloseFile (WavpackContext *wpc);
|
|
uint32_t WavpackGetSampleRate (WavpackContext *wpc);
|
|
int WavpackGetBitsPerSample (WavpackContext *wpc);
|
|
int WavpackGetBytesPerSample (WavpackContext *wpc);
|
|
int WavpackGetNumChannels (WavpackContext *wpc);
|
|
int WavpackGetChannelMask (WavpackContext *wpc);
|
|
int WavpackGetReducedChannels (WavpackContext *wpc);
|
|
int WavpackGetFloatNormExp (WavpackContext *wpc);
|
|
int WavpackGetMD5Sum (WavpackContext *wpc, unsigned char data [16]);
|
|
uint32_t WavpackGetWrapperBytes (WavpackContext *wpc);
|
|
unsigned char *WavpackGetWrapperData (WavpackContext *wpc);
|
|
void WavpackFreeWrapper (WavpackContext *wpc);
|
|
void WavpackSeekTrailingWrapper (WavpackContext *wpc);
|
|
double WavpackGetProgress (WavpackContext *wpc);
|
|
uint32_t WavpackGetFileSize (WavpackContext *wpc);
|
|
double WavpackGetRatio (WavpackContext *wpc);
|
|
double WavpackGetAverageBitrate (WavpackContext *wpc, int count_wvc);
|
|
double WavpackGetInstantBitrate (WavpackContext *wpc);
|
|
|
|
WavpackContext *WavpackOpenFileOutput (WavpackBlockOutput blockout, void *wv_id, void *wvc_id);
|
|
int WavpackSetConfiguration (WavpackContext *wpc, WavpackConfig *config, uint32_t total_samples);
|
|
int WavpackAddWrapper (WavpackContext *wpc, void *data, uint32_t bcount);
|
|
int WavpackStoreMD5Sum (WavpackContext *wpc, unsigned char data [16]);
|
|
int WavpackPackInit (WavpackContext *wpc);
|
|
int WavpackPackSamples (WavpackContext *wpc, int32_t *sample_buffer, uint32_t sample_count);
|
|
int WavpackFlushSamples (WavpackContext *wpc);
|
|
void WavpackUpdateNumSamples (WavpackContext *wpc, void *first_block);
|
|
void *WavpackGetWrapperLocation (void *first_block, uint32_t *size);
|
|
|
|
void WavpackLittleEndianToNative (void *data, char *format);
|
|
void WavpackNativeToLittleEndian (void *data, char *format);
|
|
|
|
uint32_t WavpackGetLibraryVersion (void);
|
|
const char *WavpackGetLibraryVersionString (void);
|
|
|
|
// tags.c
|
|
|
|
int WavpackGetNumTagItems (WavpackContext *wpc);
|
|
int WavpackGetTagItem (WavpackContext *wpc, const char *item, char *value, int size);
|
|
int WavpackGetTagItemIndexed (WavpackContext *wpc, int index, char *item, int size);
|
|
int WavpackGetNumBinaryTagItems (WavpackContext *wpc);
|
|
int WavpackGetBinaryTagItem (WavpackContext *wpc, const char *item, char *value, int size);
|
|
int WavpackGetBinaryTagItemIndexed (WavpackContext *wpc, int index, char *item, int size);
|
|
int WavpackAppendTagItem (WavpackContext *wpc, const char *item, const char *value, int vsize);
|
|
int WavpackAppendBinaryTagItem (WavpackContext *wpc, const char *item, const char *value, int vsize);
|
|
int WavpackDeleteTagItem (WavpackContext *wpc, const char *item);
|
|
int WavpackWriteTag (WavpackContext *wpc);
|
|
int load_tag (WavpackContext *wpc);
|
|
void free_tag (M_Tag *m_tag);
|
|
int valid_tag (M_Tag *m_tag);
|
|
|
|
///////////////////////////// SIMD helper macros /////////////////////////////
|
|
|
|
#ifdef OPT_MMX
|
|
|
|
#if defined (__GNUC__) && !defined (__INTEL_COMPILER)
|
|
//directly map to gcc's native builtins for faster code
|
|
|
|
#if __GNUC__ < 4
|
|
typedef int __di __attribute__ ((__mode__ (__DI__)));
|
|
typedef int __m64 __attribute__ ((__mode__ (__V2SI__)));
|
|
typedef int __v4hi __attribute__ ((__mode__ (__V4HI__)));
|
|
#define _m_paddsw(m1, m2) (__m64) __builtin_ia32_paddsw ((__v4hi) m1, (__v4hi) m2)
|
|
#define _m_pand(m1, m2) (__m64) __builtin_ia32_pand ((__di) m1, (__di) m2)
|
|
#define _m_pandn(m1, m2) (__m64) __builtin_ia32_pandn ((__di) m1, (__di) m2)
|
|
#define _m_pmaddwd(m1, m2) __builtin_ia32_pmaddwd ((__v4hi) m1, (__v4hi) m2)
|
|
#define _m_por(m1, m2) (__m64) __builtin_ia32_por ((__di) m1, (__di) m2)
|
|
#define _m_pxor(m1, m2) (__m64) __builtin_ia32_pxor ((__di) m1, (__di) m2)
|
|
#else
|
|
typedef int __m64 __attribute__ ((__vector_size__ (8)));
|
|
typedef short __m64_16 __attribute__ ((__vector_size__ (8)));
|
|
#define _m_paddsw(m1, m2) (__m64) __builtin_ia32_paddsw ((__m64_16) m1, (__m64_16) m2)
|
|
#define _m_pand(m1, m2) __builtin_ia32_pand (m1, m2)
|
|
#define _m_pandn(m1, m2) __builtin_ia32_pandn (m1, m2)
|
|
#define _m_pmaddwd(m1, m2) __builtin_ia32_pmaddwd ((__m64_16) m1, (__m64_16) m2)
|
|
#define _m_por(m1, m2) __builtin_ia32_por (m1, m2)
|
|
#define _m_pxor(m1, m2) __builtin_ia32_pxor (m1, m2)
|
|
#endif
|
|
|
|
#define _m_paddd(m1, m2) __builtin_ia32_paddd (m1, m2)
|
|
#define _m_pcmpeqd(m1, m2) __builtin_ia32_pcmpeqd (m1, m2)
|
|
|
|
#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) || __GNUC__ > 4
|
|
# define _m_pslldi(m1, m2) __builtin_ia32_pslldi ((__m64)m1, m2)
|
|
# define _m_psradi(m1, m2) __builtin_ia32_psradi ((__m64)m1, m2)
|
|
# define _m_psrldi(m1, m2) __builtin_ia32_psrldi ((__m64)m1, m2)
|
|
#else
|
|
# define _m_pslldi(m1, m2) __builtin_ia32_pslld (m1, m2)
|
|
# define _m_psradi(m1, m2) __builtin_ia32_psrad (m1, m2)
|
|
# define _m_psrldi(m1, m2) __builtin_ia32_psrld (m1, m2)
|
|
#endif
|
|
|
|
#define _m_psubd(m1, m2) __builtin_ia32_psubd (m1, m2)
|
|
#define _m_punpckhdq(m1, m2) __builtin_ia32_punpckhdq (m1, m2)
|
|
#define _m_punpckldq(m1, m2) __builtin_ia32_punpckldq (m1, m2)
|
|
#define _mm_empty() __builtin_ia32_emms ()
|
|
#define _mm_set_pi32(m1, m2) { m2, m1 }
|
|
#define _mm_set1_pi32(m) { m, m }
|
|
|
|
#else
|
|
#include <mmintrin.h>
|
|
#endif
|
|
|
|
#endif //OPT_MMX
|
|
|
|
#endif
|