681 lines
25 KiB
C
681 lines
25 KiB
C
////////////////////////////////////////////////////////////////////////////
|
|
// **** WAVPACK **** //
|
|
// Hybrid Lossless Wavefile Compressor //
|
|
// Copyright (c) 1998 - 2005 Conifer Software. //
|
|
// All Rights Reserved. //
|
|
// Distributed under the BSD Software License (see license.txt) //
|
|
////////////////////////////////////////////////////////////////////////////
|
|
|
|
// wavpack.h
|
|
|
|
#ifndef WAVPACK_H
|
|
#define WAVPACK_H
|
|
|
|
#if defined(WIN32)
|
|
#define FASTCALL __fastcall
|
|
#else
|
|
#define FASTCALL
|
|
#define SetConsoleTitle(x)
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
|
|
// This header file contains all the definitions required by WavPack.
|
|
|
|
#if defined(_WIN32) && !defined(__MINGW32__)
|
|
#include <stdlib.h>
|
|
typedef unsigned __int64 uint64_t;
|
|
typedef unsigned __int32 uint32_t;
|
|
typedef unsigned __int16 uint16_t;
|
|
typedef unsigned __int8 uint8_t;
|
|
typedef __int64 int64_t;
|
|
typedef __int32 int32_t;
|
|
typedef __int16 int16_t;
|
|
typedef __int8 int8_t;
|
|
typedef float float32_t;
|
|
#else
|
|
#include <inttypes.h>
|
|
#endif
|
|
|
|
typedef unsigned char uchar;
|
|
|
|
#if !defined(__GNUC__) || defined(WIN32)
|
|
typedef unsigned short ushort;
|
|
typedef unsigned int uint;
|
|
#endif
|
|
|
|
#ifndef PATH_MAX
|
|
#ifdef MAX_PATH
|
|
#define PATH_MAX MAX_PATH
|
|
#elif defined (MAXPATHLEN)
|
|
#define PATH_MAX MAXPATHLEN
|
|
#else
|
|
#define PATH_MAX 1024
|
|
#endif
|
|
#endif
|
|
|
|
// This structure is used to access the individual fields of 32-bit ieee
|
|
// floating point numbers. This will not be compatible with compilers that
|
|
// allocate bit fields from the most significant bits, although I'm not sure
|
|
// how common that is.
|
|
|
|
typedef struct {
|
|
unsigned mantissa : 23;
|
|
unsigned exponent : 8;
|
|
unsigned sign : 1;
|
|
} f32;
|
|
|
|
#include <stdio.h>
|
|
|
|
#define FALSE 0
|
|
#define TRUE 1
|
|
|
|
#if defined(WIN32)
|
|
#undef VERSION_OS
|
|
#define VERSION_OS "Win32"
|
|
#endif
|
|
#define VERSION_STR "4.32"
|
|
#define DATE_STR "2006-04-05"
|
|
|
|
// ID3v1 and APEv2 TAG formats (may occur at the end of WavPack files)
|
|
|
|
typedef struct {
|
|
uchar tag_id [3], title [30], artist [30], album [30];
|
|
uchar year [4], comment [30], genre;
|
|
} ID3_Tag;
|
|
|
|
typedef struct {
|
|
char ID [8];
|
|
int32_t version, length, item_count, flags;
|
|
char res [8];
|
|
} APE_Tag_Hdr;
|
|
|
|
#define APE_Tag_Hdr_Format "8LLLL"
|
|
|
|
typedef struct {
|
|
int32_t tag_file_pos;
|
|
ID3_Tag id3_tag;
|
|
APE_Tag_Hdr ape_tag_hdr;
|
|
char *ape_tag_data;
|
|
} M_Tag;
|
|
|
|
// RIFF / wav header formats (these occur at the beginning of both wav files
|
|
// and pre-4.0 WavPack files that are not in the "raw" mode)
|
|
|
|
typedef struct {
|
|
char ckID [4];
|
|
uint32_t ckSize;
|
|
char formType [4];
|
|
} RiffChunkHeader;
|
|
|
|
typedef struct {
|
|
char ckID [4];
|
|
uint32_t ckSize;
|
|
} ChunkHeader;
|
|
|
|
#define ChunkHeaderFormat "4L"
|
|
|
|
typedef struct {
|
|
ushort FormatTag, NumChannels;
|
|
uint32_t SampleRate, BytesPerSecond;
|
|
ushort BlockAlign, BitsPerSample;
|
|
ushort cbSize, ValidBitsPerSample;
|
|
int32_t ChannelMask;
|
|
ushort SubFormat;
|
|
char GUID [14];
|
|
} WaveHeader;
|
|
|
|
#define WaveHeaderFormat "SSLLSSSSLS"
|
|
|
|
////////////////////////////// WavPack Header /////////////////////////////////
|
|
|
|
// Note that this is the ONLY structure that is written to (or read from)
|
|
// WavPack 4.0 files, and is the preamble to every block in both the .wv
|
|
// and .wvc files.
|
|
|
|
typedef struct {
|
|
char ckID [4];
|
|
uint32_t ckSize;
|
|
short version;
|
|
uchar track_no, index_no;
|
|
uint32_t total_samples, block_index, block_samples, flags, crc;
|
|
} WavpackHeader;
|
|
|
|
#define WavpackHeaderFormat "4LS2LLLLL"
|
|
|
|
// or-values for "flags"
|
|
|
|
#define BYTES_STORED 3 // 1-4 bytes/sample
|
|
#define MONO_FLAG 4 // not stereo
|
|
#define HYBRID_FLAG 8 // hybrid mode
|
|
#define JOINT_STEREO 0x10 // joint stereo
|
|
#define CROSS_DECORR 0x20 // no-delay cross decorrelation
|
|
#define HYBRID_SHAPE 0x40 // noise shape (hybrid mode only)
|
|
#define FLOAT_DATA 0x80 // ieee 32-bit floating point data
|
|
|
|
#define INT32_DATA 0x100 // special extended int handling
|
|
#define HYBRID_BITRATE 0x200 // bitrate noise (hybrid mode only)
|
|
#define HYBRID_BALANCE 0x400 // balance noise (hybrid stereo mode only)
|
|
|
|
#define INITIAL_BLOCK 0x800 // initial block of multichannel segment
|
|
#define FINAL_BLOCK 0x1000 // final block of multichannel segment
|
|
|
|
#define SHIFT_LSB 13
|
|
#define SHIFT_MASK (0x1fL << SHIFT_LSB)
|
|
|
|
#define MAG_LSB 18
|
|
#define MAG_MASK (0x1fL << MAG_LSB)
|
|
|
|
#define SRATE_LSB 23
|
|
#define SRATE_MASK (0xfL << SRATE_LSB)
|
|
|
|
#define FALSE_STEREO 0x40000000 // block is stereo, but data is mono
|
|
|
|
#define IGNORED_FLAGS 0x18000000 // reserved, but ignore if encountered
|
|
#define NEW_SHAPING 0x20000000 // use IIR filter for negative shaping
|
|
#define UNKNOWN_FLAGS 0x80000000 // also reserved, but refuse decode if
|
|
// encountered
|
|
|
|
#define MONO_DATA (MONO_FLAG | FALSE_STEREO)
|
|
|
|
#define MIN_STREAM_VERS 0x402 // lowest stream version we'll decode
|
|
#define MAX_STREAM_VERS 0x410 // highest stream version we'll decode
|
|
#define CUR_STREAM_VERS 0x404 // stream version we are writing now
|
|
|
|
|
|
//////////////////////////// WavPack Metadata /////////////////////////////////
|
|
|
|
// This is an internal representation of metadata.
|
|
|
|
typedef struct {
|
|
int32_t byte_length;
|
|
void *data;
|
|
uchar id;
|
|
} WavpackMetadata;
|
|
|
|
#define ID_UNIQUE 0x3f
|
|
#define ID_OPTIONAL_DATA 0x20
|
|
#define ID_ODD_SIZE 0x40
|
|
#define ID_LARGE 0x80
|
|
|
|
#define ID_DUMMY 0x0
|
|
#define ID_ENCODER_INFO 0x1
|
|
#define ID_DECORR_TERMS 0x2
|
|
#define ID_DECORR_WEIGHTS 0x3
|
|
#define ID_DECORR_SAMPLES 0x4
|
|
#define ID_ENTROPY_VARS 0x5
|
|
#define ID_HYBRID_PROFILE 0x6
|
|
#define ID_SHAPING_WEIGHTS 0x7
|
|
#define ID_FLOAT_INFO 0x8
|
|
#define ID_INT32_INFO 0x9
|
|
#define ID_WV_BITSTREAM 0xa
|
|
#define ID_WVC_BITSTREAM 0xb
|
|
#define ID_WVX_BITSTREAM 0xc
|
|
#define ID_CHANNEL_INFO 0xd
|
|
|
|
#define ID_RIFF_HEADER (ID_OPTIONAL_DATA | 0x1)
|
|
#define ID_RIFF_TRAILER (ID_OPTIONAL_DATA | 0x2)
|
|
#define ID_REPLAY_GAIN (ID_OPTIONAL_DATA | 0x3)
|
|
#define ID_CUESHEET (ID_OPTIONAL_DATA | 0x4)
|
|
#define ID_CONFIG_BLOCK (ID_OPTIONAL_DATA | 0x5)
|
|
#define ID_MD5_CHECKSUM (ID_OPTIONAL_DATA | 0x6)
|
|
#define ID_SAMPLE_RATE (ID_OPTIONAL_DATA | 0x7)
|
|
|
|
///////////////////////// WavPack Configuration ///////////////////////////////
|
|
|
|
// This internal structure is used during encode to provide configuration to
|
|
// the encoding engine and during decoding to provide fle information back to
|
|
// the higher level functions. Not all fields are used in both modes.
|
|
|
|
typedef struct {
|
|
float bitrate, shaping_weight;
|
|
int bits_per_sample, bytes_per_sample;
|
|
int qmode, flags, xmode, num_channels, float_norm_exp;
|
|
int32_t block_samples, extra_flags, sample_rate, channel_mask;
|
|
uchar md5_checksum [16], md5_read;
|
|
int num_tag_strings;
|
|
char **tag_strings;
|
|
} WavpackConfig;
|
|
|
|
#define CONFIG_BYTES_STORED 3 // 1-4 bytes/sample
|
|
#define CONFIG_MONO_FLAG 4 // not stereo
|
|
#define CONFIG_HYBRID_FLAG 8 // hybrid mode
|
|
#define CONFIG_JOINT_STEREO 0x10 // joint stereo
|
|
#define CONFIG_CROSS_DECORR 0x20 // no-delay cross decorrelation
|
|
#define CONFIG_HYBRID_SHAPE 0x40 // noise shape (hybrid mode only)
|
|
#define CONFIG_FLOAT_DATA 0x80 // ieee 32-bit floating point data
|
|
|
|
#define CONFIG_ADOBE_MODE 0x100 // "adobe" mode for 32-bit floats
|
|
#define CONFIG_FAST_FLAG 0x200 // fast mode
|
|
#define CONFIG_VERY_FAST_FLAG 0x400 // double fast
|
|
#define CONFIG_HIGH_FLAG 0x800 // high quality mode
|
|
#define CONFIG_VERY_HIGH_FLAG 0x1000 // double high (not used yet)
|
|
#define CONFIG_BITRATE_KBPS 0x2000 // bitrate is kbps, not bits / sample
|
|
#define CONFIG_AUTO_SHAPING 0x4000 // automatic noise shaping
|
|
#define CONFIG_SHAPE_OVERRIDE 0x8000 // shaping mode specified
|
|
#define CONFIG_JOINT_OVERRIDE 0x10000 // joint-stereo mode specified
|
|
#define CONFIG_COPY_TIME 0x20000 // copy file-time from source
|
|
#define CONFIG_CREATE_EXE 0x40000 // create executable
|
|
#define CONFIG_CREATE_WVC 0x80000 // create correction file
|
|
#define CONFIG_OPTIMIZE_WVC 0x100000 // maximize bybrid compression
|
|
#define CONFIG_QUALITY_MODE 0x200000 // psychoacoustic quality mode
|
|
#define CONFIG_RAW_FLAG 0x400000 // raw mode (not implemented yet)
|
|
#define CONFIG_CALC_NOISE 0x800000 // calc noise in hybrid mode
|
|
#define CONFIG_LOSSY_MODE 0x1000000 // obsolete (for information)
|
|
#define CONFIG_EXTRA_MODE 0x2000000 // extra processing mode
|
|
#define CONFIG_SKIP_WVX 0x4000000 // no wvx stream w/ floats & big ints
|
|
#define CONFIG_MD5_CHECKSUM 0x8000000 // compute & store MD5 signature
|
|
#define CONFIG_QUIET_MODE 0x10000000 // don't report progress %
|
|
#define CONFIG_IGNORE_LENGTH 0x20000000 // ignore length in wav header
|
|
#define CONFIG_NEW_RIFF_HEADER 0x40000000 // generate new RIFF wav header
|
|
|
|
#define EXTRA_SCAN_ONLY 1
|
|
#define EXTRA_STEREO_MODES 2
|
|
#define EXTRA_TRY_DELTAS 8
|
|
#define EXTRA_ADJUST_DELTAS 16
|
|
#define EXTRA_SORT_FIRST 32
|
|
#define EXTRA_BRANCHES 0x1c0
|
|
#define EXTRA_SKIP_8TO16 512
|
|
#define EXTRA_TERMS 0x3c00
|
|
#define EXTRA_DUMP_TERMS 16384
|
|
#define EXTRA_SORT_LAST 32768
|
|
|
|
//////////////////////////////// WavPack Stream ///////////////////////////////
|
|
|
|
// This internal structure contains everything required to handle a WavPack
|
|
// "stream", which is defined as a stereo or mono stream of audio samples. For
|
|
// multichannel audio several of these would be required. Each stream contains
|
|
// pointers to hold a complete allocated block of WavPack data, although it's
|
|
// possible to decode WavPack blocks without buffering an entire block.
|
|
|
|
typedef struct bs {
|
|
uchar *buf, *end, *ptr;
|
|
void (*wrap)(struct bs *bs);
|
|
int error, bc;
|
|
uint32_t sr;
|
|
} Bitstream;
|
|
|
|
#define MAX_STREAMS 8
|
|
#define MAX_NTERMS 16
|
|
#define MAX_TERM 8
|
|
|
|
struct decorr_pass {
|
|
int term, delta, weight_A, weight_B;
|
|
int32_t samples_A [MAX_TERM], samples_B [MAX_TERM];
|
|
int32_t aweight_A, aweight_B;
|
|
int32_t sum_A, sum_B;
|
|
};
|
|
|
|
typedef struct {
|
|
WavpackHeader wphdr;
|
|
|
|
uchar *blockbuff, *blockend;
|
|
uchar *block2buff, *block2end;
|
|
int32_t *sample_buffer;
|
|
|
|
int bits, num_terms, mute_error, false_stereo, shift;
|
|
uint32_t sample_index, crc, crc_x, crc_wvx;
|
|
Bitstream wvbits, wvcbits, wvxbits;
|
|
float delta_decay;
|
|
|
|
uchar int32_sent_bits, int32_zeros, int32_ones, int32_dups;
|
|
uchar float_flags, float_shift, float_max_exp, float_norm_exp;
|
|
|
|
struct {
|
|
int32_t shaping_acc [2], shaping_delta [2], error [2];
|
|
double noise_sum, noise_ave, noise_max;
|
|
} dc;
|
|
|
|
struct decorr_pass decorr_passes [MAX_NTERMS];
|
|
|
|
struct {
|
|
uint32_t bitrate_delta [2], bitrate_acc [2];
|
|
uint32_t median [3] [2], slow_level [2], error_limit [2];
|
|
uint32_t pend_data, holding_one, zeros_acc;
|
|
int holding_zero, pend_count;
|
|
} w;
|
|
} WavpackStream;
|
|
|
|
// flags for float_flags:
|
|
|
|
#define FLOAT_SHIFT_ONES 1 // bits left-shifted into float = '1'
|
|
#define FLOAT_SHIFT_SAME 2 // bits left-shifted into float are the same
|
|
#define FLOAT_SHIFT_SENT 4 // bits shifted into float are sent literally
|
|
#define FLOAT_ZEROS_SENT 8 // "zeros" are not all real zeros
|
|
#define FLOAT_NEG_ZEROS 0x10 // contains negative zeros
|
|
#define FLOAT_EXCEPTIONS 0x20 // contains exceptions (inf, nan, etc.)
|
|
|
|
/////////////////////////////// WavPack Context ///////////////////////////////
|
|
|
|
// This internal structure holds everything required to encode or decode WavPack
|
|
// files. It is recommended that direct access to this structure be minimized
|
|
// and the provided utilities used instead.
|
|
|
|
typedef struct {
|
|
int32_t (*read_bytes)(void *id, void *data, int32_t bcount);
|
|
uint32_t (*get_pos)(void *id);
|
|
int (*set_pos_abs)(void *id, uint32_t pos);
|
|
int (*set_pos_rel)(void *id, int32_t delta, int mode);
|
|
int (*push_back_byte)(void *id, int c);
|
|
uint32_t (*get_length)(void *id);
|
|
int (*can_seek)(void *id);
|
|
|
|
// this callback is for writing edited tags only
|
|
int32_t (*write_bytes)(void *id, void *data, int32_t bcount);
|
|
} WavpackStreamReader;
|
|
|
|
typedef int (*WavpackBlockOutput)(void *id, void *data, int32_t bcount);
|
|
|
|
typedef struct {
|
|
WavpackConfig config;
|
|
|
|
WavpackMetadata *metadata;
|
|
uint32_t metabytes;
|
|
int metacount;
|
|
|
|
uchar *wrapper_data;
|
|
uint32_t wrapper_bytes;
|
|
|
|
WavpackBlockOutput blockout;
|
|
void *wv_out, *wvc_out;
|
|
|
|
WavpackStreamReader *reader;
|
|
void *wv_in, *wvc_in;
|
|
|
|
uint32_t filelen, file2len, filepos, file2pos, total_samples, crc_errors, first_flags;
|
|
int wvc_flag, open_flags, norm_offset, reduced_channels, lossy_blocks, close_files;
|
|
int block_samples, max_samples, acc_samples, riff_header_added, riff_header_created;
|
|
M_Tag m_tag;
|
|
|
|
int current_stream, num_streams, stream_version;
|
|
WavpackStream *streams [8];
|
|
void *stream3;
|
|
|
|
char error_message [80];
|
|
} WavpackContext;
|
|
|
|
//////////////////////// function prototypes and macros //////////////////////
|
|
|
|
#define CLEAR(destin) memset (&destin, 0, sizeof (destin));
|
|
|
|
// these macros implement the weight application and update operations
|
|
// that are at the heart of the decorrelation loops
|
|
|
|
#define apply_weight_i(weight, sample) ((weight * sample + 512) >> 10)
|
|
|
|
#define apply_weight_f(weight, sample) (((((sample & 0xffff) * weight) >> 9) + \
|
|
(((sample & ~0xffff) >> 9) * weight) + 1) >> 1)
|
|
|
|
#if 1 // PERFCOND
|
|
#define apply_weight(weight, sample) (sample != (short) sample ? \
|
|
apply_weight_f (weight, sample) : apply_weight_i (weight, sample))
|
|
#else
|
|
#define apply_weight(weight, sample) ((int32_t)((weight * (int64_t) sample + 512) >> 10))
|
|
#endif
|
|
|
|
#if 1 // PERFCOND
|
|
#define update_weight(weight, delta, source, result) \
|
|
if (source && result) weight -= ((((source ^ result) >> 30) & 2) - 1) * delta;
|
|
#else
|
|
#define update_weight(weight, delta, source, result) \
|
|
if (source && result) (source ^ result) < 0 ? (weight -= delta) : (weight += delta);
|
|
#endif
|
|
|
|
#define update_weight_d1(weight, delta, source, result) \
|
|
if (source && result) weight -= (((source ^ result) >> 30) & 2) - 1;
|
|
|
|
#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 && ((source ^ result) < 0 ? (weight -= delta) < -1024 : (weight += delta) > 1024)) \
|
|
weight = weight < 0 ? -1024 : 1024;
|
|
|
|
#define update_weight_clip_d1(weight, delta, source, result) \
|
|
if (source && result && abs (weight -= (((source ^ result) >> 30) & 2) - 1) > 1024) \
|
|
weight = weight < 0 ? -1024 : 1024;
|
|
|
|
#define update_weight_clip_d2(weight, delta, source, result) \
|
|
if (source && result && abs (weight -= (((source ^ result) >> 29) & 4) - 2) > 1024) \
|
|
weight = weight < 0 ? -1024 : 1024;
|
|
|
|
// bits.c
|
|
|
|
void bs_open_read (Bitstream *bs, uchar *buffer_start, uchar *buffer_end);
|
|
void bs_open_write (Bitstream *bs, uchar *buffer_start, uchar *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 = 7, ((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 += 8; \
|
|
} \
|
|
*(value) = (bs)->sr; \
|
|
if ((bs)->bc > 32) { \
|
|
(bs)->bc -= (nbits); \
|
|
(bs)->sr = *((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) == 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) == 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) == 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)) >= 8) \
|
|
do { \
|
|
*((bs)->ptr) = (bs)->sr; \
|
|
(bs)->sr >>= 8; \
|
|
if (((bs)->bc -= 8) > 24) (bs)->sr |= ((value) >> ((nbits) - (bs)->bc)); \
|
|
if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \
|
|
} while ((bs)->bc >= 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 pack_noise (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);
|
|
|
|
// utils.c
|
|
|
|
int copy_timestamp (const char *src_filename, const char *dst_filename);
|
|
char *filespec_ext (char *filespec), *filespec_path (char *filespec);
|
|
char *filespec_name (char *filespec), *filespec_wild (char *filespec);
|
|
void error_line (char *error, ...);
|
|
void setup_break (void), finish_line (void);
|
|
int check_break (void);
|
|
char yna (void);
|
|
|
|
#define FN_FIT(fn) ((strlen (fn) > 30) ? filespec_name (fn) : fn)
|
|
|
|
// metadata.c stuff
|
|
|
|
int read_metadata_buff (WavpackMetadata *wpmd, uchar *blockbuff, uchar **buffptr);
|
|
int write_metadata_block (WavpackContext *wpc);
|
|
int copy_metadata (WavpackMetadata *wpmd, uchar *buffer_start, uchar *buffer_end);
|
|
int add_to_metadata (WavpackContext *wpc, void *data, uint32_t bcount, uchar 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 FASTCALL send_word_lossless (WavpackStream *wps, int32_t value, int chan);
|
|
int32_t FASTCALL get_word (WavpackStream *wps, int chan, int32_t *correction);
|
|
int32_t FASTCALL get_word_lossless (WavpackStream *wps, int chan);
|
|
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 (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 float_normalize (int32_t *values, int32_t num_values, int delta_exp);
|
|
|
|
// analyze?.c
|
|
|
|
void analyze_stereo (WavpackContext *wpc, int32_t *samples);
|
|
void analyze_mono (WavpackContext *wpc, int32_t *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
|
|
#define MODE_APETAG 0x100
|
|
#define MODE_SFX 0x200
|
|
|
|
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 WavpackGetReducedChannels (WavpackContext *wpc);
|
|
int WavpackGetMD5Sum (WavpackContext *wpc, uchar data [16]);
|
|
uint32_t WavpackGetWrapperBytes (WavpackContext *wpc);
|
|
uchar *WavpackGetWrapperData (WavpackContext *wpc);
|
|
void WavpackFreeWrapper (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);
|
|
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 WavpackAppendTagItem (WavpackContext *wpc, const char *item, const char *value, int vsize);
|
|
int WavpackDeleteTagItem (WavpackContext *wpc, const char *item);
|
|
int WavpackWriteTag (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, uchar 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);
|
|
|
|
#endif
|