[FFmpeg-cvslog] avformat: Fix overflow in compute_pkt_fields().

[Dale Curtis]

ffmpeg | branch: master | Dale Curtis <dalecurtis at chromium.org> | Thu May 14 14:47:49 2020 -0700| [63ce7c71bc1b1b6c141df5daae0f8fed52194b72] | committer: Michael Niedermayer

avformat: Fix overflow in compute_pkt_fields().

Signed-off-by: Dale Curtis <dalecurtis at chromium.org>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=63ce7c71bc1b1b6c141df5daae0f8fed52194b72
---

 libavformat/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index b3d902c6b5..667249362c 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1359,7 +1359,7 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
             if (st->last_IP_duration == 0 && (uint64_t)pkt->duration <= INT32_MAX)
                 st->last_IP_duration = pkt->duration;
             if (pkt->dts != AV_NOPTS_VALUE)
-                st->cur_dts = pkt->dts + st->last_IP_duration;
+                st->cur_dts = av_sat_add64(pkt->dts, st->last_IP_duration);
             if (pkt->dts != AV_NOPTS_VALUE &&
                 pkt->pts == AV_NOPTS_VALUE &&
                 st->last_IP_duration > 0 &&