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