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avformat/utils: Fix integer overflow in discontinuity check

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Fixes: signed integer overflow: 7738135736989908991 - -7954308516317364223 cannot be represented in type 'long'
Fixes: find_stream_info_usan

Reported-by: Thomas Guilbert <tguilbert@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-10-12 03:00:32 +02:00
parent e90d4e9272
commit 4e19cfcfa3
1 changed files with 1 additions and 1 deletions
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2
libavformat/utils.c
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@ -3818,7 +3818,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
* sequence, we treat it as a discontinuity. */
if (st->info->fps_last_dts != AV_NOPTS_VALUE &&
st->info->fps_last_dts_idx > st->info->fps_first_dts_idx &&
(pkt->dts - st->info->fps_last_dts) / 1000 >
(pkt->dts - (uint64_t)st->info->fps_last_dts) / 1000 >
(st->info->fps_last_dts - (uint64_t)st->info->fps_first_dts) /
(st->info->fps_last_dts_idx - st->info->fps_first_dts_idx)) {
av_log(ic, AV_LOG_WARNING,