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avformat/matroskaenc: Fix writing of markers

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When the marker writing code was merged from libav to FFmpeg
in dc62016c, it failed to take into account that the meaning of
cluster_pos had changed in bda5b662; in particular, the special
value for “I'm not currently working on a cluster” had changed
from 0 to -1. This makes the avio_write_marker() call never
be called. Update the if statement to fix it.

Fixes: Ticket9843
Signed-off-by: Steinar H. Gunderson <steinar+ffmpeg@gunderson.no>
Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Steinar H. Gunderson 2023-08-28 19:03:08 +02:00 committed by Martin Storsjö
parent a25a60d763
commit 69c308a6d1
1 changed files with 1 additions and 1 deletions
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libavformat/matroskaenc.c
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@ -3027,7 +3027,7 @@ static int mkv_write_packet(AVFormatContext *s, const AVPacket *pkt)
}
}
if (!mkv->cluster_pos)
if (mkv->cluster_pos == -1)
avio_write_marker(s->pb,
av_rescale_q(pkt->dts, s->streams[pkt->stream_index]->time_base, AV_TIME_BASE_Q),
keyframe && (mkv->have_video ? codec_type == AVMEDIA_TYPE_VIDEO : 1) ? AVIO_DATA_MARKER_SYNC_POINT : AVIO_DATA_MARKER_BOUNDARY_POINT);