Commit ce67f442 authored by Martin Storsjö's avatar Martin Storsjö

lavf: Avoid setting avg_frame_rate if delta_dts is negative

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: 's avatarMartin Storsjö <martin@martin.st>
parent bb7bf175
...@@ -2373,7 +2373,8 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options) ...@@ -2373,7 +2373,8 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
double best_error = 0.01; double best_error = 0.01;
if (delta_dts >= INT64_MAX / st->time_base.num || 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; continue;
av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den, av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
delta_packets*(int64_t)st->time_base.den, delta_packets*(int64_t)st->time_base.den,
......
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