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avformat/utils: Fix integer overflow in end time calculation in update_stream_timings()

Fixes: crbug 829153

Reported-by: Matt Wolenetz <wolenetz@google.com>
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-04-11 18:55:57 +02:00
parent 5c62a3dbda
commit c48ceff786

View File

@ -2648,7 +2648,7 @@ static void update_stream_timings(AVFormatContext *ic)
else if (start_time > start_time_text)
av_log(ic, AV_LOG_VERBOSE, "Ignoring outlier non primary stream starttime %f\n", start_time_text / (float)AV_TIME_BASE);
if (end_time == INT64_MIN || (end_time < end_time_text && end_time_text - end_time < AV_TIME_BASE)) {
if (end_time == INT64_MIN || (end_time < end_time_text && end_time_text - (uint64_t)end_time < AV_TIME_BASE)) {
end_time = end_time_text;
} else if (end_time < end_time_text) {
av_log(ic, AV_LOG_VERBOSE, "Ignoring outlier non primary stream endtime %f\n", end_time_text / (float)AV_TIME_BASE);