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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 37d46dc21d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-04-13 11:38:48 +02:00
parent cf321e93c4
commit b591673c50

View File

@ -937,6 +937,7 @@ 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;