//////////////////////////////////////////////////////////////////////////// // **** WAVPACK **** // // Hybrid Lossless Wavefile Compressor // // Copyright (c) 1998 - 2005 Conifer Software. // // All Rights Reserved. // // Distributed under the BSD Software License (see license.txt) // //////////////////////////////////////////////////////////////////////////// // wputils.h #ifndef WPUTILS_H #define WPUTILS_H // This header file contains all the definitions required to use the // functions in "wputils.c" to read and write WavPack files and streams. #include #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 ///////////////////////// WavPack Configuration /////////////////////////////// // This external 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_HYBRID_FLAG 8 // hybrid mode #define CONFIG_JOINT_STEREO 0x10 // joint stereo #define CONFIG_HYBRID_SHAPE 0x40 // noise shape (hybrid mode only) #define CONFIG_FAST_FLAG 0x200 // fast mode #define CONFIG_HIGH_FLAG 0x800 // high quality mode #define CONFIG_BITRATE_KBPS 0x2000 // bitrate is kbps, not bits / sample #define CONFIG_SHAPE_OVERRIDE 0x8000 // shaping mode specified #define CONFIG_JOINT_OVERRIDE 0x10000 // joint-stereo mode specified #define CONFIG_CREATE_WVC 0x80000 // create correction file #define CONFIG_OPTIMIZE_WVC 0x100000 // maximize bybrid compression #define CONFIG_CALC_NOISE 0x800000 // calc noise in hybrid mode #define CONFIG_EXTRA_MODE 0x2000000 // extra processing mode #define CONFIG_SKIP_WVX 0x4000000 // no wvx stream w/ floats & big ints ////////////// Callbacks used for reading & writing WavPack streams ////////// 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); } stream_reader; typedef int (*blockout)(void *id, void *data, int32_t bcount); //////////////////////// function prototypes and macros ////////////////////// typedef void WavpackContext; #ifdef __cplusplus extern "C" { #endif WavpackContext *WavpackOpenFileInputEx (stream_reader *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 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 WavpackGetFloatNormExp (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 WavpackGetTagItem (WavpackContext *wpc, const char *item, char *value, int size); int WavpackAppendTagItem (WavpackContext *wpc, const char *item, const char *value); int WavpackWriteTag (WavpackContext *wpc); WavpackContext *WavpackOpenFileOutput (blockout 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); // this function is not actually in wputils.c, but is generally useful void float_normalize (int32_t *values, int32_t num_values, int delta_exp); #ifdef __cplusplus } #endif #endif