diff --git a/libavformat/movenc.c b/libavformat/movenc.c index 7a0d9f1150..96bb8851a0 100644 --- a/libavformat/movenc.c +++ b/libavformat/movenc.c @@ -2473,7 +2473,7 @@ static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov, avio_wb32(pb, track->entry); /* sample count */ if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET && - !(mov->flags & (FF_MOV_FLAG_SEPARATE_MOOF | FF_MOV_FLAG_DEFAULT_BASE_MOOF)) && + !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) && !mov->first_trun) avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */ else