movenc: fix NULL reference in mov_write_tkhd_tag

st may be NULL when there are more mov streams than AVStreams, e.g. when
chapters are present.
This commit is contained in:
Anton Khirnov 2011-09-19 15:15:56 +02:00
parent f06068bbd6
commit c92a2a4eb8
1 changed files with 1 additions and 1 deletions

View File

@ -1217,7 +1217,7 @@ static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
avio_wb32(pb, 0); /* reserved */
avio_wb32(pb, 0); /* reserved */
avio_wb16(pb, 0); /* layer */
avio_wb16(pb, st->codec->codec_type); /* alternate group) */
avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
/* Volume, only for audio */
if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
avio_wb16(pb, 0x0100);