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avformat/mov: do not overwrite extradata in mov_read_glbl()

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Fixes regression from Ticket3962

This basically favors the first global header while since 34751f8313
it was the last. If this heuristic turns out worse, do not hesitate to revert this and
reopen 3962 as a feature request for multiple STSD

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-10-05 23:31:37 +02:00
parent fb7d8d50bc
commit 02f7665a3c
1 changed files with 4 additions and 0 deletions
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4
libavformat/mov.c
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@ -1099,6 +1099,10 @@ static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (type == MKTAG('f','i','e','l') && size == atom.size)
return mov_read_default(c, pb, atom);
}
if (st->codec->extradata_size > 1 && st->codec->extradata) {
av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
return 0;
}
av_free(st->codec->extradata);
if (ff_get_extradata(st->codec, pb, atom.size) < 0)
return AVERROR(ENOMEM);