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avformat/utils: Fix integer overflow of fps_first/last_dts

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Fixes: runtime error: signed integer overflow: 7738135736989908991 - -7898362169240453118 cannot be represented in type 'long'
Fixes: Chromium bug 796778
Reported-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-03-07 00:10:11 +01:00
parent da069e9c68
commit 1b1362e408
1 changed files with 1 additions and 1 deletions
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2
libavformat/utils.c
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@ -3778,7 +3778,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
if (st->info->fps_last_dts != AV_NOPTS_VALUE && if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
st->info->fps_last_dts_idx > st->info->fps_first_dts_idx && st->info->fps_last_dts_idx > st->info->fps_first_dts_idx &&
(pkt->dts - st->info->fps_last_dts) / 1000 > (pkt->dts - st->info->fps_last_dts) / 1000 >
(st->info->fps_last_dts - st->info->fps_first_dts) / (st->info->fps_last_dts - (uint64_t)st->info->fps_first_dts) /
(st->info->fps_last_dts_idx - st->info->fps_first_dts_idx)) { (st->info->fps_last_dts_idx - st->info->fps_first_dts_idx)) {
av_log(ic, AV_LOG_WARNING, av_log(ic, AV_LOG_WARNING,
"DTS discontinuity in stream %d: packet %d with DTS " "DTS discontinuity in stream %d: packet %d with DTS "