X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=laserbrain_demo;a=blobdiff_plain;f=libs%2Fvorbis%2Fvorbisfile.h;fp=libs%2Fvorbis%2Fvorbisfile.h;h=636c51cc1e1b983a15a9a385fb2b2e377c962918;hp=0000000000000000000000000000000000000000;hb=f25228d21d10f8df4607384ddb879251d31ee40e;hpb=c48096383ed398a518e69070bfc9373537ab00bb diff --git a/libs/vorbis/vorbisfile.h b/libs/vorbis/vorbisfile.h new file mode 100644 index 0000000..636c51c --- /dev/null +++ b/libs/vorbis/vorbisfile.h @@ -0,0 +1,208 @@ +/******************************************************************** + * * + * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * + * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * + * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * + * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * + * * + * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 * + * by the Xiph.Org Foundation http://www.xiph.org/ * + * * + ******************************************************************** + + function: stdio-based convenience library for opening/seeking/decoding + last mod: $Id: vorbisfile.h 17182 2010-04-29 03:48:32Z xiphmont $ + + ********************************************************************/ + +#ifndef _OV_FILE_H_ +#define _OV_FILE_H_ + +#define OV_EXCLUDE_STATIC_CALLBACKS + +#ifdef __cplusplus +extern "C" +{ +#endif /* __cplusplus */ + +#include +#include "codec.h" + +/* The function prototypes for the callbacks are basically the same as for + * the stdio functions fread, fseek, fclose, ftell. + * The one difference is that the FILE * arguments have been replaced with + * a void * - this is to be used as a pointer to whatever internal data these + * functions might need. In the stdio case, it's just a FILE * cast to a void * + * + * If you use other functions, check the docs for these functions and return + * the right values. For seek_func(), you *MUST* return -1 if the stream is + * unseekable + */ +typedef struct { + size_t (*read_func) (void *ptr, size_t size, size_t nmemb, void *datasource); + int (*seek_func) (void *datasource, ogg_int64_t offset, int whence); + int (*close_func) (void *datasource); + long (*tell_func) (void *datasource); +} ov_callbacks; + +#ifndef OV_EXCLUDE_STATIC_CALLBACKS + +/* a few sets of convenient callbacks, especially for use under + * Windows where ov_open_callbacks() should always be used instead of + * ov_open() to avoid problems with incompatible crt.o version linking + * issues. */ + +static int _ov_header_fseek_wrap(FILE *f,ogg_int64_t off,int whence){ + if(f==NULL)return(-1); + +#ifdef __MINGW32__ + return fseeko64(f,off,whence); +#elif defined (_WIN32) + return _fseeki64(f,off,whence); +#else + return fseek(f,off,whence); +#endif +} + +/* These structs below (OV_CALLBACKS_DEFAULT etc) are defined here as + * static data. That means that every file which includes this header + * will get its own copy of these structs whether it uses them or + * not unless it #defines OV_EXCLUDE_STATIC_CALLBACKS. + * These static symbols are essential on platforms such as Windows on + * which several different versions of stdio support may be linked to + * by different DLLs, and we need to be certain we know which one + * we're using (the same one as the main application). + */ + +static ov_callbacks OV_CALLBACKS_DEFAULT = { + (size_t (*)(void *, size_t, size_t, void *)) fread, + (int (*)(void *, ogg_int64_t, int)) _ov_header_fseek_wrap, + (int (*)(void *)) fclose, + (long (*)(void *)) ftell +}; + +static ov_callbacks OV_CALLBACKS_NOCLOSE = { + (size_t (*)(void *, size_t, size_t, void *)) fread, + (int (*)(void *, ogg_int64_t, int)) _ov_header_fseek_wrap, + (int (*)(void *)) NULL, + (long (*)(void *)) ftell +}; + +static ov_callbacks OV_CALLBACKS_STREAMONLY = { + (size_t (*)(void *, size_t, size_t, void *)) fread, + (int (*)(void *, ogg_int64_t, int)) NULL, + (int (*)(void *)) fclose, + (long (*)(void *)) NULL +}; + +static ov_callbacks OV_CALLBACKS_STREAMONLY_NOCLOSE = { + (size_t (*)(void *, size_t, size_t, void *)) fread, + (int (*)(void *, ogg_int64_t, int)) NULL, + (int (*)(void *)) NULL, + (long (*)(void *)) NULL +}; + +#endif + +#define NOTOPEN 0 +#define PARTOPEN 1 +#define OPENED 2 +#define STREAMSET 3 +#define INITSET 4 + +typedef struct OggVorbis_File { + void *datasource; /* Pointer to a FILE *, etc. */ + int seekable; + ogg_int64_t offset; + ogg_int64_t end; + ogg_sync_state oy; + + /* If the FILE handle isn't seekable (eg, a pipe), only the current + stream appears */ + int links; + ogg_int64_t *offsets; + ogg_int64_t *dataoffsets; + long *serialnos; + ogg_int64_t *pcmlengths; /* overloaded to maintain binary + compatibility; x2 size, stores both + beginning and end values */ + vorbis_info *vi; + vorbis_comment *vc; + + /* Decoding working state local storage */ + ogg_int64_t pcm_offset; + int ready_state; + long current_serialno; + int current_link; + + double bittrack; + double samptrack; + + ogg_stream_state os; /* take physical pages, weld into a logical + stream of packets */ + vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */ + vorbis_block vb; /* local working space for packet->PCM decode */ + + ov_callbacks callbacks; + +} OggVorbis_File; + + +extern int ov_clear(OggVorbis_File *vf); +extern int ov_fopen(const char *path,OggVorbis_File *vf); +extern int ov_open(FILE *f,OggVorbis_File *vf,const char *initial,long ibytes); +extern int ov_open_callbacks(void *datasource, OggVorbis_File *vf, + const char *initial, long ibytes, ov_callbacks callbacks); + +extern int ov_test(FILE *f,OggVorbis_File *vf,const char *initial,long ibytes); +extern int ov_test_callbacks(void *datasource, OggVorbis_File *vf, + const char *initial, long ibytes, ov_callbacks callbacks); +extern int ov_test_open(OggVorbis_File *vf); + +extern long ov_bitrate(OggVorbis_File *vf,int i); +extern long ov_bitrate_instant(OggVorbis_File *vf); +extern long ov_streams(OggVorbis_File *vf); +extern long ov_seekable(OggVorbis_File *vf); +extern long ov_serialnumber(OggVorbis_File *vf,int i); + +extern ogg_int64_t ov_raw_total(OggVorbis_File *vf,int i); +extern ogg_int64_t ov_pcm_total(OggVorbis_File *vf,int i); +extern double ov_time_total(OggVorbis_File *vf,int i); + +extern int ov_raw_seek(OggVorbis_File *vf,ogg_int64_t pos); +extern int ov_pcm_seek(OggVorbis_File *vf,ogg_int64_t pos); +extern int ov_pcm_seek_page(OggVorbis_File *vf,ogg_int64_t pos); +extern int ov_time_seek(OggVorbis_File *vf,double pos); +extern int ov_time_seek_page(OggVorbis_File *vf,double pos); + +extern int ov_raw_seek_lap(OggVorbis_File *vf,ogg_int64_t pos); +extern int ov_pcm_seek_lap(OggVorbis_File *vf,ogg_int64_t pos); +extern int ov_pcm_seek_page_lap(OggVorbis_File *vf,ogg_int64_t pos); +extern int ov_time_seek_lap(OggVorbis_File *vf,double pos); +extern int ov_time_seek_page_lap(OggVorbis_File *vf,double pos); + +extern ogg_int64_t ov_raw_tell(OggVorbis_File *vf); +extern ogg_int64_t ov_pcm_tell(OggVorbis_File *vf); +extern double ov_time_tell(OggVorbis_File *vf); + +extern vorbis_info *ov_info(OggVorbis_File *vf,int link); +extern vorbis_comment *ov_comment(OggVorbis_File *vf,int link); + +extern long ov_read_float(OggVorbis_File *vf,float ***pcm_channels,int samples, + int *bitstream); +extern long ov_read_filter(OggVorbis_File *vf,char *buffer,int length, + int bigendianp,int word,int sgned,int *bitstream, + void (*filter)(float **pcm,long channels,long samples,void *filter_param),void *filter_param); +extern long ov_read(OggVorbis_File *vf,char *buffer,int length, + int bigendianp,int word,int sgned,int *bitstream); +extern int ov_crosslap(OggVorbis_File *vf1,OggVorbis_File *vf2); + +extern int ov_halfrate(OggVorbis_File *vf,int flag); +extern int ov_halfrate_p(OggVorbis_File *vf); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif +