From 7992bdbeb4ba72a9d28e72acc2b3bc0d198401ec Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 4 Mar 2013 18:54:00 +0100 Subject: [PATCH] update_stream_timings: check bitrate for being in range. Fixes numerical overflow Fixes Ticket2089 Signed-off-by: Michael Niedermayer --- libavformat/utils.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/utils.c b/libavformat/utils.c index 724cc05366..f71184f65e 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -2230,8 +2230,10 @@ static void update_stream_timings(AVFormatContext *ic) } if (ic->pb && (filesize = avio_size(ic->pb)) > 0 && ic->duration != AV_NOPTS_VALUE) { /* compute the bitrate */ - ic->bit_rate = (double)filesize * 8.0 * AV_TIME_BASE / + double bitrate = (double)filesize * 8.0 * AV_TIME_BASE / (double)ic->duration; + if (bitrate >= 0 && bitrate <= INT_MAX) + ic->bit_rate = bitrate; } }