//////////////////////////////////////////////////////////////////////////// // **** 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 // This header file contains all the definitions required by WavPack. #if defined(_WIN32) && !defined(__MINGW32__) #include 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 #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 #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