18e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels/******************************************************************** 28e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * * 38e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * 48e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * 58e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * 68e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * 78e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * * 88e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 * 98e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * by the Xiph.Org Foundation http://www.xiph.org/ * 108e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * * 118e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ******************************************************************** 128e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 138e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels function: stdio-based convenience library for opening/seeking/decoding 148e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels last mod: $Id: vorbisfile.h 17021 2010-03-24 09:29:41Z xiphmont $ 158e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 168e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ********************************************************************/ 178e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 188e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#ifndef _OV_FILE_H_ 198e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#define _OV_FILE_H_ 208e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 218e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#ifdef __cplusplus 228e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern "C" 238e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels{ 248e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#endif /* __cplusplus */ 258e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 268e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#include <stdio.h> 278e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#include "codec.h" 288e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 298e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels/* The function prototypes for the callbacks are basically the same as for 308e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * the stdio functions fread, fseek, fclose, ftell. 318e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * The one difference is that the FILE * arguments have been replaced with 328e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * a void * - this is to be used as a pointer to whatever internal data these 338e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * functions might need. In the stdio case, it's just a FILE * cast to a void * 348e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * 358e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * If you use other functions, check the docs for these functions and return 368e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * the right values. For seek_func(), you *MUST* return -1 if the stream is 378e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * unseekable 388e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels */ 398e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelstypedef struct { 408e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels size_t (*read_func) (void *ptr, size_t size, size_t nmemb, void *datasource); 418e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels int (*seek_func) (void *datasource, ogg_int64_t offset, int whence); 428e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels int (*close_func) (void *datasource); 438e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels long (*tell_func) (void *datasource); 448e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels} ov_callbacks; 458e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 468e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#ifndef OV_EXCLUDE_STATIC_CALLBACKS 478e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 488e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels/* a few sets of convenient callbacks, especially for use under 498e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * Windows where ov_open_callbacks() should always be used instead of 508e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * ov_open() to avoid problems with incompatible crt.o version linking 518e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * issues. */ 528e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 538e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsstatic int _ov_header_fseek_wrap(FILE *f,ogg_int64_t off,int whence){ 548e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels if(f==NULL)return(-1); 558e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 568e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#ifdef __MINGW32__ 578e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels return fseeko64(f,off,whence); 588e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#elif defined (_WIN32) 598e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels return _fseeki64(f,off,whence); 608e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#else 618e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels return fseek(f,off,whence); 628e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#endif 638e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels} 648e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 658e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels/* These structs below (OV_CALLBACKS_DEFAULT etc) are defined here as 668e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * static data. That means that every file which includes this header 678e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * will get its own copy of these structs whether it uses them or 688e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * not unless it #defines OV_EXCLUDE_STATIC_CALLBACKS. 698e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * These static symbols are essential on platforms such as Windows on 708e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * which several different versions of stdio support may be linked to 718e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * by different DLLs, and we need to be certain we know which one 728e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels * we're using (the same one as the main application). 738e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels */ 748e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 758e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsstatic ov_callbacks OV_CALLBACKS_DEFAULT = { 768e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (size_t (*)(void *, size_t, size_t, void *)) fread, 778e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (int (*)(void *, ogg_int64_t, int)) _ov_header_fseek_wrap, 788e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (int (*)(void *)) fclose, 798e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (long (*)(void *)) ftell 808e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels}; 818e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 828e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsstatic ov_callbacks OV_CALLBACKS_NOCLOSE = { 838e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (size_t (*)(void *, size_t, size_t, void *)) fread, 848e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (int (*)(void *, ogg_int64_t, int)) _ov_header_fseek_wrap, 858e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (int (*)(void *)) NULL, 868e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (long (*)(void *)) ftell 878e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels}; 888e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 898e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsstatic ov_callbacks OV_CALLBACKS_STREAMONLY = { 908e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (size_t (*)(void *, size_t, size_t, void *)) fread, 918e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (int (*)(void *, ogg_int64_t, int)) NULL, 928e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (int (*)(void *)) fclose, 938e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (long (*)(void *)) NULL 948e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels}; 958e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 968e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsstatic ov_callbacks OV_CALLBACKS_STREAMONLY_NOCLOSE = { 978e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (size_t (*)(void *, size_t, size_t, void *)) fread, 988e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (int (*)(void *, ogg_int64_t, int)) NULL, 998e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (int (*)(void *)) NULL, 1008e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels (long (*)(void *)) NULL 1018e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels}; 1028e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1038e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#endif 1048e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1058e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#define NOTOPEN 0 1068e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#define PARTOPEN 1 1078e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#define OPENED 2 1088e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#define STREAMSET 3 1098e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#define INITSET 4 1108e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1118e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelstypedef struct OggVorbis_File { 1128e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels void *datasource; /* Pointer to a FILE *, etc. */ 1138e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels int seekable; 1148e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ogg_int64_t offset; 1158e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ogg_int64_t end; 1168e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ogg_sync_state oy; 1178e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1188e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels /* If the FILE handle isn't seekable (eg, a pipe), only the current 1198e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels stream appears */ 1208e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels int links; 1218e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ogg_int64_t *offsets; 1228e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ogg_int64_t *dataoffsets; 1238e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels long *serialnos; 1248e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ogg_int64_t *pcmlengths; /* overloaded to maintain binary 1258e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels compatibility; x2 size, stores both 1268e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels beginning and end values */ 1278e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels vorbis_info *vi; 1288e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels vorbis_comment *vc; 1298e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1308e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels /* Decoding working state local storage */ 1318e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ogg_int64_t pcm_offset; 1328e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels int ready_state; 1338e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels long current_serialno; 1348e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels int current_link; 1358e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1368e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels double bittrack; 1378e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels double samptrack; 1388e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1398e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ogg_stream_state os; /* take physical pages, weld into a logical 1408e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels stream of packets */ 1418e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */ 1428e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels vorbis_block vb; /* local working space for packet->PCM decode */ 1438e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1448e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels ov_callbacks callbacks; 1458e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1468e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels} OggVorbis_File; 1478e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1488e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1498e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_clear(OggVorbis_File *vf); 1508e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_fopen(char *path,OggVorbis_File *vf); 1518e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_open(FILE *f,OggVorbis_File *vf,char *initial,long ibytes); 1528e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_open_callbacks(void *datasource, OggVorbis_File *vf, 1538e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels char *initial, long ibytes, ov_callbacks callbacks); 1548e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1558e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_test(FILE *f,OggVorbis_File *vf,char *initial,long ibytes); 1568e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_test_callbacks(void *datasource, OggVorbis_File *vf, 1578e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels char *initial, long ibytes, ov_callbacks callbacks); 1588e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_test_open(OggVorbis_File *vf); 1598e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1608e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern long ov_bitrate(OggVorbis_File *vf,int i); 1618e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern long ov_bitrate_instant(OggVorbis_File *vf); 1628e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern long ov_streams(OggVorbis_File *vf); 1638e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern long ov_seekable(OggVorbis_File *vf); 1648e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern long ov_serialnumber(OggVorbis_File *vf,int i); 1658e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1668e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern ogg_int64_t ov_raw_total(OggVorbis_File *vf,int i); 1678e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern ogg_int64_t ov_pcm_total(OggVorbis_File *vf,int i); 1688e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern double ov_time_total(OggVorbis_File *vf,int i); 1698e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1708e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_raw_seek(OggVorbis_File *vf,ogg_int64_t pos); 1718e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_pcm_seek(OggVorbis_File *vf,ogg_int64_t pos); 1728e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_pcm_seek_page(OggVorbis_File *vf,ogg_int64_t pos); 1738e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_time_seek(OggVorbis_File *vf,double pos); 1748e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_time_seek_page(OggVorbis_File *vf,double pos); 1758e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1768e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_raw_seek_lap(OggVorbis_File *vf,ogg_int64_t pos); 1778e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_pcm_seek_lap(OggVorbis_File *vf,ogg_int64_t pos); 1788e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_pcm_seek_page_lap(OggVorbis_File *vf,ogg_int64_t pos); 1798e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_time_seek_lap(OggVorbis_File *vf,double pos); 1808e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_time_seek_page_lap(OggVorbis_File *vf,double pos); 1818e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1828e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern ogg_int64_t ov_raw_tell(OggVorbis_File *vf); 1838e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern ogg_int64_t ov_pcm_tell(OggVorbis_File *vf); 1848e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern double ov_time_tell(OggVorbis_File *vf); 1858e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1868e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern vorbis_info *ov_info(OggVorbis_File *vf,int link); 1878e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern vorbis_comment *ov_comment(OggVorbis_File *vf,int link); 1888e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1898e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern long ov_read_float(OggVorbis_File *vf,float ***pcm_channels,int samples, 1908e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels int *bitstream); 1918e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern long ov_read_filter(OggVorbis_File *vf,char *buffer,int length, 1928e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels int bigendianp,int word,int sgned,int *bitstream, 1938e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels void (*filter)(float **pcm,long channels,long samples,void *filter_param),void *filter_param); 1948e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern long ov_read(OggVorbis_File *vf,char *buffer,int length, 1958e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels int bigendianp,int word,int sgned,int *bitstream); 1968e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_crosslap(OggVorbis_File *vf1,OggVorbis_File *vf2); 1978e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 1988e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_halfrate(OggVorbis_File *vf,int flag); 1998e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckelsextern int ov_halfrate_p(OggVorbis_File *vf); 2008e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 2018e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#ifdef __cplusplus 2028e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels} 2038e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#endif /* __cplusplus */ 2048e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 2058e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels#endif 2068e01cdce135d5d816f92d7bb83f9a930aa1b45aeLucas Eckels 207