android/jni/tremolo/ivorbisfile.h

   1 /********************************************************************
   2  *                                                                  *
   3  * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE.   *
   4  *                                                                  *
   5  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
   6  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
   7  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
   8  *                                                                  *
   9  * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2003    *
  10  * BY THE Xiph.Org FOUNDATION http://www.xiph.org/                  *
  11  *                                                                  *
  12  ********************************************************************
  13
  14  function: stdio-based convenience library for opening/seeking/decoding
  15
  16  ********************************************************************/
  17
  18 #ifndef _OV_FILE_H_
  19 #define _OV_FILE_H_
  20
  21 #ifdef __cplusplus
  22 extern "C"
  23 {
  24 #endif /* __cplusplus */
  25
  26 #include <stdio.h>
  27 #include "ivorbiscodec.h"
  28
  29 /* The function prototypes for the callbacks are basically the same as for
  30  * the stdio functions fread, fseek, fclose, ftell.
  31  * The one difference is that the FILE * arguments have been replaced with
  32  * a void * - this is to be used as a pointer to whatever internal data these
  33  * functions might need. In the stdio case, it's just a FILE * cast to a void *
  34  *
  35  * If you use other functions, check the docs for these functions and return
  36  * the right values. For seek_func(), you *MUST* return -1 if the stream is
  37  * unseekable
  38  */
  39 typedef struct {
  40   size_t (*read_func)  (void *ptr, size_t size, size_t nmemb, void *datasource);
  41   int    (*seek_func)  (void *datasource, ogg_int64_t offset, int whence);
  42   int    (*close_func) (void *datasource);
  43   long   (*tell_func)  (void *datasource);
  44 } ov_callbacks;
  45
  46 typedef struct OggVorbis_File {
  47   void            *datasource; /* Pointer to a FILE *, etc. */
  48   int              seekable;
  49   ogg_int64_t      offset;
  50   ogg_int64_t      end;
  51   ogg_sync_state   *oy;
  52
  53   /* If the FILE handle isn't seekable (eg, a pipe), only the current
  54      stream appears */
  55   int              links;
  56   ogg_int64_t     *offsets;
  57   ogg_int64_t     *dataoffsets;
  58   ogg_uint32_t    *serialnos;
  59   ogg_int64_t     *pcmlengths;
  60   vorbis_info     vi;
  61   vorbis_comment  vc;
  62
  63   /* Decoding working state local storage */
  64   ogg_int64_t      pcm_offset;
  65   int              ready_state;
  66   ogg_uint32_t     current_serialno;
  67   int              current_link;
  68
  69   ogg_int64_t      bittrack;
  70   ogg_int64_t      samptrack;
  71
  72   ogg_stream_state *os; /* take physical pages, weld into a logical
  73                           stream of packets */
  74   vorbis_dsp_state *vd; /* central working state for the packet->PCM decoder */
  75
  76   ov_callbacks callbacks;
  77
  78 } OggVorbis_File;
  79
  80 extern int ov_clear(OggVorbis_File *vf);
  81 extern int ov_open(FILE *f,OggVorbis_File *vf,char *initial,long ibytes);
  82 extern int ov_open_callbacks(void *datasource, OggVorbis_File *vf,
  83                 char *initial, long ibytes, ov_callbacks callbacks);
  84
  85 extern int ov_test(FILE *f,OggVorbis_File *vf,char *initial,long ibytes);
  86 extern int ov_test_callbacks(void *datasource, OggVorbis_File *vf,
  87                 char *initial, long ibytes, ov_callbacks callbacks);
  88 extern int ov_test_open(OggVorbis_File *vf);
  89
  90 extern long ov_bitrate(OggVorbis_File *vf,int i);
  91 extern long ov_bitrate_instant(OggVorbis_File *vf);
  92 extern long ov_streams(OggVorbis_File *vf);
  93 extern long ov_seekable(OggVorbis_File *vf);
  94 extern long ov_serialnumber(OggVorbis_File *vf,int i);
  95
  96 extern ogg_int64_t ov_raw_total(OggVorbis_File *vf,int i);
  97 extern ogg_int64_t ov_pcm_total(OggVorbis_File *vf,int i);
  98 extern ogg_int64_t ov_time_total(OggVorbis_File *vf,int i);
  99
 100 extern int ov_raw_seek(OggVorbis_File *vf,ogg_int64_t pos);
 101 extern int ov_pcm_seek(OggVorbis_File *vf,ogg_int64_t pos);
 102 extern int ov_pcm_seek_page(OggVorbis_File *vf,ogg_int64_t pos);
 103 extern int ov_time_seek(OggVorbis_File *vf,ogg_int64_t pos);
 104 extern int ov_time_seek_page(OggVorbis_File *vf,ogg_int64_t pos);
 105
 106 extern ogg_int64_t ov_raw_tell(OggVorbis_File *vf);
 107 extern ogg_int64_t ov_pcm_tell(OggVorbis_File *vf);
 108 extern ogg_int64_t ov_time_tell(OggVorbis_File *vf);
 109
 110 extern vorbis_info *ov_info(OggVorbis_File *vf,int link);
 111 extern vorbis_comment *ov_comment(OggVorbis_File *vf,int link);
 112
 113 extern long ov_read(OggVorbis_File *vf,void *buffer,int length,
 114                     int *bitstream);
 115
 116 #ifdef __cplusplus
 117 }
 118 #endif /* __cplusplus */
 119
 120 #endif
 121
 122