avformat/matroskaenc: Check that Cluster has been opened

before setting the field indicating that a Cluster has been opened.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2019-11-26 04:40:29 +01:00
parent 907b7f88ca
commit 5d24b6843c
1 changed files with 1 additions and 1 deletions

View File

@ -2311,10 +2311,10 @@ static int mkv_write_packet_internal(AVFormatContext *s, AVPacket *pkt, int add_
}
if (mkv->cluster_pos == -1) {
mkv->cluster_pos = avio_tell(s->pb);
ret = start_ebml_master_crc32(&mkv->cluster_bc, mkv);
if (ret < 0)
return ret;
mkv->cluster_pos = avio_tell(s->pb);
put_ebml_uint(mkv->cluster_bc, MATROSKA_ID_CLUSTERTIMECODE, FFMAX(0, ts));
mkv->cluster_pts = FFMAX(0, ts);
av_log(s, AV_LOG_DEBUG,