On 28/06/2018 01:08, Luca Barbato wrote: > Defined in > https://datatracker.ietf.org/doc/html/draft-lhomme-cellar-matroska-04#section-8.2.86 > --- > libavformat/matroska.h | 1 + > libavformat/matroskadec.c | 2 ++ > 2 files changed, 3 insertions(+) > > diff --git a/libavformat/matroska.h b/libavformat/matroska.h > index 4e9f96e530..eda1dafa91 100644 > --- a/libavformat/matroska.h > +++ b/libavformat/matroska.h > @@ -87,6 +87,7 @@ > #define MATROSKA_ID_CODECDOWNLOADURL 0x26B240 > #define MATROSKA_ID_CODECDECODEALL 0xAA > #define MATROSKA_ID_CODECDELAY 0x56AA > +#define MATROSKA_ID_SEEKPREROLL 0x56BB > #define MATROSKA_ID_TRACKNAME 0x536E > #define MATROSKA_ID_TRACKLANGUAGE 0x22B59C > #define MATROSKA_ID_TRACKFLAGENABLED 0xB9 > diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c > index 9c8aea36ff..2c29a3e909 100644 > --- a/libavformat/matroskadec.c > +++ b/libavformat/matroskadec.c > @@ -171,6 +171,7 @@ typedef struct MatroskaTrack { > MatroskaTrackAudio audio; > EbmlList encodings; > uint64_t codec_delay; > + uint64_t seek_preroll; > > AVStream *stream; > int64_t end_timecode; > @@ -383,6 +384,7 @@ static EbmlSyntax matroska_track[] = { > { MATROSKA_ID_CODECID, EBML_STR, 0, > offsetof(MatroskaTrack, codec_id) }, > { MATROSKA_ID_CODECPRIVATE, EBML_BIN, 0, > offsetof(MatroskaTrack, codec_priv) }, > { MATROSKA_ID_CODECDELAY, EBML_UINT, 0, > offsetof(MatroskaTrack, codec_delay) }, > + { MATROSKA_ID_SEEKPREROLL, EBML_UINT, 0, > offsetof(MatroskaTrack, seek_preroll) }, > { MATROSKA_ID_TRACKLANGUAGE, EBML_UTF8, 0, > offsetof(MatroskaTrack, language), { .s = "eng" } }, > { MATROSKA_ID_TRACKDEFAULTDURATION, EBML_UINT, 0, > offsetof(MatroskaTrack, default_duration) }, > { MATROSKA_ID_TRACKTIMECODESCALE, EBML_FLOAT, 0, > offsetof(MatroskaTrack, time_scale), { .f = 1.0 } }, >
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