diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c index 7e108f2db9..c2848fdcd2 100644 --- a/libavformat/matroskaenc.c +++ b/libavformat/matroskaenc.c @@ -2188,7 +2188,7 @@ static int mkv_write_vtt_blocks(AVFormatContext *s, AVIOContext *pb, const AVPac put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, pkt->duration); end_ebml_master(pb, blockgroup); - return pkt->duration; + return 0; } static int mkv_end_cluster(AVFormatContext *s) @@ -2359,9 +2359,9 @@ static int mkv_write_packet_internal(AVFormatContext *s, const AVPacket *pkt) } } else { if (par->codec_id == AV_CODEC_ID_WEBVTT) { - duration = mkv_write_vtt_blocks(s, pb, pkt); - if (duration < 0) - return duration; + ret = mkv_write_vtt_blocks(s, pb, pkt); + if (ret < 0) + return ret; } else { ebml_master blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, mkv_blockgroup_size(pkt->size,