From ddd86a2924b9bc67c406cd66ebb1fc8915cd60f7 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Tue, 28 Feb 2012 18:41:01 +0100
Subject: [PATCH] ffmpeg: Fix division by 0 due to invalid timebase
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
ffmpeg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/ffmpeg.c b/ffmpeg.c
index 4bdca88c7ac..06fb2535a96 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -2269,7 +2269,7 @@ static int output_packet(InputStream *ist,
ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
if (avpkt.duration) {
duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
- } else if(ist->st->codec->time_base.num != 0) {
+ } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
duration = ((int64_t)AV_TIME_BASE *
ist->st->codec->time_base.num * ticks) /
--
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