From 92dbd65700334ac9c77bf085fca7b72dd7445ffd Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Wed, 14 Sep 2016 21:14:07 +0200
Subject: [PATCH] avcodec/h264_parser: fix for possible overflow
Signed-off-by: Paul B Mahol <onemda@gmail.com>
---
libavcodec/h264_parser.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/h264_parser.c b/libavcodec/h264_parser.c
index 4dacb22cc76..3ed7d77061c 100644
--- a/libavcodec/h264_parser.c
+++ b/libavcodec/h264_parser.c
@@ -600,9 +600,9 @@ static int h264_parse(AVCodecParserContext *s,
}
if (s->dts_sync_point >= 0) {
- int64_t den = avctx->time_base.den * avctx->pkt_timebase.num;
+ int64_t den = avctx->time_base.den * (int64_t)avctx->pkt_timebase.num;
if (den > 0) {
- int64_t num = avctx->time_base.num * avctx->pkt_timebase.den;
+ int64_t num = avctx->time_base.num * (int64_t)avctx->pkt_timebase.den;
if (s->dts != AV_NOPTS_VALUE) {
// got DTS from the stream, update reference timestamp
p->reference_dts = s->dts - av_rescale(s->dts_ref_dts_delta, num, den);
--
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