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avformat/matroskaenc: Add support for FlagTextDescriptions

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This is the Matroska equivalent of D_WEBVTT_DESCRIPTIONS and is
therefore only enabled for subtitles.

Reviewed-by: Ridley Combs <rcombs@rcombs.me>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2021-02-16 19:49:16 +01:00
parent 48cf1d878c
commit 053144008e
1 changed files with 2 additions and 0 deletions
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libavformat/matroskaenc.c
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@ -1359,6 +1359,8 @@ static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv,
av_log(s, AV_LOG_ERROR, "Subtitle codec %d is not supported.\n", par->codec_id);
return AVERROR(ENOSYS);
}
if (mkv->mode != MODE_WEBM && st->disposition & AV_DISPOSITION_DESCRIPTIONS)
put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGTEXTDESCRIPTIONS, 1);
if (mkv->mode != MODE_WEBM || par->codec_id != AV_CODEC_ID_WEBVTT)
native_id = MATROSKA_TRACK_TYPE_SUBTITLE;