From 8ef7fb86d62c9d44697c8eef0ddc424be4a3612b Mon Sep 17 00:00:00 2001 From: Dale Curtis Date: Fri, 7 Sep 2018 15:37:09 -0700 Subject: [PATCH] avformat/utils: Don't calculate duration using AV_NOPTS_VALUE for start_time. Found by ClusterFuzz, https://crbug.com/879852 Signed-off-by: Michael Niedermayer --- libavformat/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/utils.c b/libavformat/utils.c index b0b5e164a6..a72f0a482e 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -3869,7 +3869,7 @@ FF_ENABLE_DEPRECATION_WARNINGS break; } if (pkt->duration) { - if (avctx->codec_type == AVMEDIA_TYPE_SUBTITLE && pkt->pts != AV_NOPTS_VALUE && pkt->pts >= st->start_time) { + if (avctx->codec_type == AVMEDIA_TYPE_SUBTITLE && pkt->pts != AV_NOPTS_VALUE && st->start_time != AV_NOPTS_VALUE && pkt->pts >= st->start_time) { st->info->codec_info_duration = FFMIN(pkt->pts - st->start_time, st->info->codec_info_duration + pkt->duration); } else st->info->codec_info_duration += pkt->duration;