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avformat/utils: Fix integer overflow with complex time bases in avformat_find_stream_info() 

Fixes: signed integer overflow: 2045163756 * 2 cannot be represented in type 'int'
Fixes: Ticket5132

Found-by: tsmith
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f3d8f517db)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-02-15 23:23:55 +01:00
parent 4b7a304b6e
commit 31098af56d
1 changed files with 1 additions and 1 deletions
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2
libavformat/utils.c
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@ -4024,7 +4024,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
if (!st->r_frame_rate.num) {
if ( avctx->time_base.den * (int64_t) st->time_base.num
<= avctx->time_base.num * avctx->ticks_per_frame * (int64_t) st->time_base.den) {
<= avctx->time_base.num * avctx->ticks_per_frame * (uint64_t) st->time_base.den) {
av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
avctx->time_base.den, (int64_t)avctx->time_base.num * avctx->ticks_per_frame, INT_MAX);
} else {