| Gloria Wang | 7913073 | 2010-02-08 14:41:04 -0800 | [diff] [blame^] | 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 1994-2002 * |
| 10 | * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ * |
| 11 | * * |
| 12 | ******************************************************************** |
| 13 | |
| 14 | function: libvorbis codec headers |
| 15 | |
| 16 | ********************************************************************/ |
| 17 | |
| 18 | #ifndef _vorbis_codec_h_ |
| 19 | #define _vorbis_codec_h_ |
| 20 | |
| 21 | #ifdef __cplusplus |
| 22 | extern "C" |
| 23 | { |
| 24 | #endif /* __cplusplus */ |
| 25 | |
| 26 | #include "ogg.h" |
| 27 | |
| 28 | struct vorbis_dsp_state; |
| 29 | typedef struct vorbis_dsp_state vorbis_dsp_state; |
| 30 | |
| 31 | typedef struct vorbis_info{ |
| 32 | int version; |
| 33 | int channels; |
| 34 | long rate; |
| 35 | |
| 36 | /* The below bitrate declarations are *hints*. |
| 37 | Combinations of the three values carry the following implications: |
| 38 | |
| 39 | all three set to the same value: |
| 40 | implies a fixed rate bitstream |
| 41 | only nominal set: |
| 42 | implies a VBR stream that averages the nominal bitrate. No hard |
| 43 | upper/lower limit |
| 44 | upper and or lower set: |
| 45 | implies a VBR bitstream that obeys the bitrate limits. nominal |
| 46 | may also be set to give a nominal rate. |
| 47 | none set: |
| 48 | the coder does not care to speculate. |
| 49 | */ |
| 50 | |
| 51 | long bitrate_upper; |
| 52 | long bitrate_nominal; |
| 53 | long bitrate_lower; |
| 54 | long bitrate_window; |
| 55 | |
| 56 | void *codec_setup; |
| 57 | } vorbis_info; |
| 58 | |
| 59 | typedef struct vorbis_comment{ |
| 60 | char **user_comments; |
| 61 | int *comment_lengths; |
| 62 | int comments; |
| 63 | char *vendor; |
| 64 | |
| 65 | } vorbis_comment; |
| 66 | |
| 67 | |
| 68 | /* Vorbis PRIMITIVES: general ***************************************/ |
| 69 | |
| 70 | extern void vorbis_info_init(vorbis_info *vi); |
| 71 | extern void vorbis_info_clear(vorbis_info *vi); |
| 72 | extern int vorbis_info_blocksize(vorbis_info *vi,int zo); |
| 73 | extern void vorbis_comment_init(vorbis_comment *vc); |
| 74 | extern void vorbis_comment_add(vorbis_comment *vc, char *comment); |
| 75 | extern void vorbis_comment_add_tag(vorbis_comment *vc, |
| 76 | char *tag, char *contents); |
| 77 | extern char *vorbis_comment_query(vorbis_comment *vc, char *tag, int count); |
| 78 | extern int vorbis_comment_query_count(vorbis_comment *vc, char *tag); |
| 79 | extern void vorbis_comment_clear(vorbis_comment *vc); |
| 80 | |
| 81 | /* Vorbis ERRORS and return codes ***********************************/ |
| 82 | |
| 83 | #define OV_FALSE -1 |
| 84 | #define OV_EOF -2 |
| 85 | #define OV_HOLE -3 |
| 86 | |
| 87 | #define OV_EREAD -128 |
| 88 | #define OV_EFAULT -129 |
| 89 | #define OV_EIMPL -130 |
| 90 | #define OV_EINVAL -131 |
| 91 | #define OV_ENOTVORBIS -132 |
| 92 | #define OV_EBADHEADER -133 |
| 93 | #define OV_EVERSION -134 |
| 94 | #define OV_ENOTAUDIO -135 |
| 95 | #define OV_EBADPACKET -136 |
| 96 | #define OV_EBADLINK -137 |
| 97 | #define OV_ENOSEEK -138 |
| 98 | |
| 99 | #ifdef __cplusplus |
| 100 | } |
| 101 | #endif /* __cplusplus */ |
| 102 | |
| 103 | #endif |
| 104 | |