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lavf: Avoid setting avg_frame_rate if delta_dts is negative

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This avoids setting avg_frame_rate to invalid (negative)
values.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2013-09-20 12:20:06 +03:00
parent bb7bf17595
commit ce67f442be
1 changed files with 2 additions and 1 deletions
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3
libavformat/utils.c
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@ -2373,7 +2373,8 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
double best_error = 0.01;
if (delta_dts >= INT64_MAX / st->time_base.num ||
delta_packets >= INT64_MAX / st->time_base.den)
delta_packets >= INT64_MAX / st->time_base.den ||
delta_dts < 0)
continue;
av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
delta_packets*(int64_t)st->time_base.den,