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avformat/mov: Check av_add_index_entry() return value

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Fixes NULL pointer dereference
Fixes: signal_sigsegv_b060e0_3794_cov_1293954059_vc1-wmapro.ism

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-02-23 22:47:49 +01:00
parent 03616af2c9
commit 4d1b017c38
1 changed files with 6 additions and 3 deletions
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9
libavformat/mov.c
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@ -3218,9 +3218,12 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
if (keyframe)
distance = 0;
av_add_index_entry(st, offset, INT64_MAX/2, sample_size, distance,
keyframe ? AVINDEX_KEYFRAME : 0);
st->index_entries[st->nb_index_entries - 1].timestamp = cts;
err = av_add_index_entry(st, offset, INT64_MAX/2, sample_size, distance,
keyframe ? AVINDEX_KEYFRAME : 0);
if (err < 0) {
av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
} else
st->index_entries[st->nb_index_entries - 1].timestamp = cts;
av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", cts %"PRId64", "
"size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
offset, cts, sample_size, distance, keyframe);