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avformat/mov: Skip stsd adjustment without chunks 

Fixes: Assertion failure
Fixes: clusterfuzz-testcase-minimized-media_pipeline_integration_fuzzer-5683096400822272

Found-by: Clusterfuzz
Reported-by: Dan Sanders <sandersd@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-04-16 22:15:14 +02:00
parent ed188f6dcd
commit 18a567c369
1 changed files with 2 additions and 0 deletions
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2
libavformat/mov.c
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@ -7872,6 +7872,7 @@ static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp,
}
/* adjust stsd index */
if (sc->chunk_count) {
time_sample = 0;
for (i = 0; i < sc->stsc_count; i++) {
int64_t next = time_sample + mov_get_stsc_samples(sc, i);
@ -7883,6 +7884,7 @@ static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp,
av_assert0(next == (int)next);
time_sample = next;
}
}
return sample;
}