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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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int (*header)(AVFormatContext *, int); |
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int (*packet)(AVFormatContext *, int); |
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uint64_t (*gptopts)(AVFormatContext *, int, uint64_t, int64_t *dts); |
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int granule_is_start; |
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int nb_header; |
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void (*cleanup)(AVFormatContext *s, int idx); |
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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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unsigned int pduration; |
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uint32_t serial; |
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uint64_t granule; |
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uint64_t start_granule; |
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int64_t lastpts; |
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int64_t lastdts; |
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int64_t sync_pos; |
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int64_t page_pos; |
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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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int incomplete; |
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int page_end; |
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int keyframe_seek; |
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int got_start; |
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int got_data; |
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int nb_header; |
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int start_trimming; |
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int end_trimming; |
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uint8_t *new_metadata; |
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size_t new_metadata_size; |
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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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int64_t page_pos; |
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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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#define OGG_NOGRANULE_VALUE (-1ull) |
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extern const struct ogg_codec ff_celt_codec; |
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extern const struct ogg_codec ff_dirac_codec; |
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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_dirac_codec; |
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extern const struct ogg_codec ff_old_flac_codec; |
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extern const struct ogg_codec ff_opus_codec; |
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extern const struct ogg_codec ff_skeleton_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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extern const struct ogg_codec ff_vp8_codec; |
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int ff_vorbis_comment(AVFormatContext *ms, AVDictionary **m, |
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const uint8_t *buf, int size, int parse_picture); |
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int ff_vorbis_stream_comment(AVFormatContext *as, AVStream *st, |
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const uint8_t *buf, int size); |
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static inline int |
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ogg_find_stream (struct ogg * ogg, int serial) |
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{ |
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int i; |
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for (i = 0; i < ogg->nstreams; i++) |
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if (ogg->streams[i].serial == serial) |
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return i; |
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return -1; |
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} |
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static inline uint64_t |
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ogg_gptopts (AVFormatContext * s, int i, uint64_t gp, int64_t *dts) |
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{ |
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struct ogg *ogg = s->priv_data; |
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struct ogg_stream *os = ogg->streams + i; |
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uint64_t pts = AV_NOPTS_VALUE; |
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if(os->codec && os->codec->gptopts){ |
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pts = os->codec->gptopts(s, i, gp, dts); |
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} else { |
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pts = gp; |
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if (dts) |
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*dts = pts; |
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} |
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if (pts > INT64_MAX && pts != AV_NOPTS_VALUE) { |
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av_log(s, AV_LOG_ERROR, "invalid pts %"PRId64"\n", pts); |
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pts = AV_NOPTS_VALUE; |
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} |
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return pts; |
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} |
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#endif |
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