From bb6146ca6d66459254b5e332f258d3e9a72a20ea Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Fri, 13 Apr 2018 11:38:48 +0200
Subject: [PATCH] avformat/utils: Check cur_dts in update_initial_timestamps()
 more

Fixes: runtime error: signed integer overflow: 18133149658382192 - -9223090561878065151 cannot be represented in type 'long long'
Fixes: crbug 831552

Reported-by: Matt Wolenetz <wolenetz@google.com>
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 37d46dc21d708192b12aa13617ebe6a117b07363)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavformat/utils.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index f204bcd3a5..8129528a85 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1075,6 +1075,7 @@ static void update_initial_timestamps(AVFormatContext *s, int stream_index,
     if (st->first_dts != AV_NOPTS_VALUE ||
         dts           == AV_NOPTS_VALUE ||
         st->cur_dts   == AV_NOPTS_VALUE ||
+        st->cur_dts < INT_MIN + RELATIVE_TS_BASE ||
         is_relative(dts))
         return;