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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-29 23:23:25 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-01 12:11:55 +0200 |
| commit | b735adcec5ef80bde216e20552a661b1221d3899 (patch) | |
| tree | 30bb28f1a245879218f6918a480e9d98249ae343 | |
| parent | 1da95b4bd1deae52cb94a64f55e9fd2a759750ab (diff) | |
| download | ffmpeg-b735adcec5ef80bde216e20552a661b1221d3899.tar.gz | |
avformat/utils: Check timebase before use in estimate_timings()
Fixes: division by 0
Fixes: 15480/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5746727434321920
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f57e97dfd9539bc3f4f97a76ebc001f0b055cb88)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/utils.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c index dc867a96a3..8bef917b13 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -2859,6 +2859,7 @@ static void estimate_timings(AVFormatContext *ic, int64_t old_offset) AVStream av_unused *st; for (i = 0; i < ic->nb_streams; i++) { st = ic->streams[i]; + if (st->time_base.den) av_log(ic, AV_LOG_TRACE, "stream %d: start_time: %0.3f duration: %0.3f\n", i, (double) st->start_time * av_q2d(st->time_base), (double) st->duration * av_q2d(st->time_base)); |