From 68614e9a099ee4ae754da5fa36fbb6a570f4aa73 Mon Sep 17 00:00:00 2001
From: Dale Curtis <dalecurtis@chromium.org>
Date: Fri, 7 Sep 2018 15:37:09 -0700
Subject: [PATCH] Don't calculate duration using AV_NOPTS_VALUE for start_time.
Found by ClusterFuzz, https://crbug.com/879852
---
libavformat/utils.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
@@ -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;
--
2.19.0.rc2.392.g5ba43deb5a-goog