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avformat/mov: fix return code for trun box with no sample entries 

A value of zero for sample_count in trun box is not
prohibited by 14496-12 section 8.8.8. 4a9d32baca
disallowed this which led the demuxer to error out
when reading the header of valid files.
This commit is contained in:
Gyan Doshi 2019-07-20 23:44:14 +05:30
parent 817235b195
commit d51d71c1e3
1 changed files with 2 additions and 2 deletions
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4
libavformat/mov.c
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@ -4781,8 +4781,8 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
entries = UINT_MAX / sizeof(AVIndexEntry) - st->nb_index_entries;
av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
}
if (entries <= 0)
return -1;
if (entries == 0)
return 0;
requested_size = (st->nb_index_entries + entries) * sizeof(AVIndexEntry);
new_entries = av_fast_realloc(st->index_entries,