| /** |
| Copyright (C) 2005 Michael Ahlberg, Måns Rullgård |
| |
| Permission is hereby granted, free of charge, to any person |
| obtaining a copy of this software and associated documentation |
| files (the "Software"), to deal in the Software without |
| restriction, including without limitation the rights to use, copy, |
| modify, merge, publish, distribute, sublicense, and/or sell copies |
| of the Software, and to permit persons to whom the Software is |
| furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be |
| included in all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
| HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| DEALINGS IN THE SOFTWARE. |
| **/ |
| |
| #ifndef AVFORMAT_OGGDEC_H |
| #define AVFORMAT_OGGDEC_H |
| |
| #include "avformat.h" |
| |
| struct ogg_codec { |
| const int8_t *magic; |
| uint8_t magicsize; |
| const int8_t *name; |
| int (*header)(AVFormatContext *, int); |
| int (*packet)(AVFormatContext *, int); |
| uint64_t (*gptopts)(AVFormatContext *, int, uint64_t); |
| }; |
| |
| struct ogg_stream { |
| uint8_t *buf; |
| unsigned int bufsize; |
| unsigned int bufpos; |
| unsigned int pstart; |
| unsigned int psize; |
| unsigned int pflags; |
| uint32_t serial; |
| uint32_t seq; |
| uint64_t granule, lastgp; |
| int flags; |
| struct ogg_codec *codec; |
| int header; |
| int nsegs, segp; |
| uint8_t segments[255]; |
| void *private; |
| }; |
| |
| struct ogg_state { |
| uint64_t pos; |
| int curidx; |
| struct ogg_state *next; |
| int nstreams; |
| struct ogg_stream streams[1]; |
| }; |
| |
| struct ogg { |
| struct ogg_stream *streams; |
| int nstreams; |
| int headers; |
| int curidx; |
| uint64_t size; |
| struct ogg_state *state; |
| }; |
| |
| #define OGG_FLAG_CONT 1 |
| #define OGG_FLAG_BOS 2 |
| #define OGG_FLAG_EOS 4 |
| |
| extern const struct ogg_codec ff_flac_codec; |
| extern const struct ogg_codec ff_ogm_audio_codec; |
| extern const struct ogg_codec ff_ogm_old_codec; |
| extern const struct ogg_codec ff_ogm_text_codec; |
| extern const struct ogg_codec ff_ogm_video_codec; |
| extern const struct ogg_codec ff_old_flac_codec; |
| extern const struct ogg_codec ff_speex_codec; |
| extern const struct ogg_codec ff_theora_codec; |
| extern const struct ogg_codec ff_vorbis_codec; |
| |
| int vorbis_comment(AVFormatContext *ms, uint8_t *buf, int size); |
| |
| #endif /* AVFORMAT_OGGDEC_H */ |