| 1 | /**
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| 2 | Copyright (C) 2005 Michael Ahlberg, Måns Rullgård
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| 3 |
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| 4 | Permission is hereby granted, free of charge, to any person
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| 5 | obtaining a copy of this software and associated documentation
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| 6 | files (the "Software"), to deal in the Software without
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| 7 | restriction, including without limitation the rights to use, copy,
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| 8 | modify, merge, publish, distribute, sublicense, and/or sell copies
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| 9 | of the Software, and to permit persons to whom the Software is
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| 10 | furnished to do so, subject to the following conditions:
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| 11 |
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| 12 | The above copyright notice and this permission notice shall be
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| 13 | included in all copies or substantial portions of the Software.
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| 14 |
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| 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 16 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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| 17 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 18 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 19 | HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 20 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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| 21 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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| 22 | DEALINGS IN THE SOFTWARE.
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| 23 | **/
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| 24 |
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| 25 | #ifndef OGG_H
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| 26 | #define OGG_H
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| 27 |
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| 28 | #include "avformat.h"
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| 29 |
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| 30 | typedef struct ogg_codec {
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| 31 | uint8_t *magic;
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| 32 | uint8_t magicsize;
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| 33 | int8_t *name;
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| 34 | int (*header)(AVFormatContext *, int);
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| 35 | int (*packet)(AVFormatContext *, int);
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| 36 | uint64_t (*gptopts)(AVFormatContext *, int, uint64_t);
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| 37 | } ogg_codec_t;
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| 38 |
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| 39 | typedef struct ogg_stream {
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| 40 | uint8_t *buf;
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| 41 | unsigned int bufsize;
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| 42 | unsigned int bufpos;
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| 43 | unsigned int pstart;
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| 44 | unsigned int psize;
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| 45 | uint32_t serial;
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| 46 | uint32_t seq;
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| 47 | uint64_t granule, lastgp;
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| 48 | int flags;
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| 49 | ogg_codec_t *codec;
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| 50 | int header;
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| 51 | int nsegs, segp;
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| 52 | uint8_t segments[255];
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| 53 | void *private;
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| 54 | } ogg_stream_t;
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| 55 |
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| 56 | typedef struct ogg_state {
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| 57 | uint64_t pos;
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| 58 | int curidx;
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| 59 | struct ogg_state *next;
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| 60 | ogg_stream_t streams[1];
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| 61 | } ogg_state_t;
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| 62 |
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| 63 | typedef struct ogg {
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| 64 | ogg_stream_t *streams;
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| 65 | int nstreams;
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| 66 | int headers;
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| 67 | int curidx;
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| 68 | uint64_t size;
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| 69 | ogg_state_t *state;
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| 70 | } ogg_t;
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| 71 |
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| 72 | #define OGG_FLAG_CONT 1
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| 73 | #define OGG_FLAG_BOS 2
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| 74 | #define OGG_FLAG_EOS 4
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| 75 |
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| 76 | extern ogg_codec_t vorbis_codec;
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| 77 | extern ogg_codec_t theora_codec;
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| 78 | extern ogg_codec_t flac_codec;
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| 79 | extern ogg_codec_t ogm_video_codec;
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| 80 | extern ogg_codec_t ogm_audio_codec;
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| 81 | extern ogg_codec_t ogm_old_codec;
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| 82 |
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| 83 | extern int vorbis_comment(AVFormatContext *ms, char *buf, int size);
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| 84 |
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| 85 | #endif
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