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avformat/utils: Move end_time1 AV_NOPTS_VALUE Check after rescale

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Fixes integer overflow
Fixes: 266ee543812e934f7b4a72923a2701d4/signal_sigabrt_7ffff6ae7cc9_7322_85218d61759d461bdf7387180e8000c9.ogg

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-12-02 22:59:56 +01:00
parent d872643cfe
commit ec7a3be11e
1 changed files with 5 additions and 5 deletions
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10
libavformat/utils.c
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@ -2342,11 +2342,11 @@ static void update_stream_timings(AVFormatContext *ic)
start_time_text = start_time1;
} else
start_time = FFMIN(start_time, start_time1);
end_time1 = AV_NOPTS_VALUE;
if (st->duration != AV_NOPTS_VALUE) {
end_time1 = start_time1 +
av_rescale_q(st->duration, st->time_base,
AV_TIME_BASE_Q);
end_time1 = av_rescale_q_rnd(st->duration, st->time_base,
AV_TIME_BASE_Q,
AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
if (end_time1 != AV_NOPTS_VALUE) {
end_time1 += start_time1;
end_time = FFMAX(end_time, end_time1);
}
for (p = NULL; (p = av_find_program_from_stream(ic, p, i)); ) {