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Code Issues Releases Activity

avformat/mov: Do not allocate empty extradata

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Fixes Ticket5723

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2016-07-21 21:55:18 +02:00
parent 9264bb7e79
commit 38cc5c298c
1 changed files with 7 additions and 5 deletions
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libavformat/mov.c
+7 -5
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@@ -2345,12 +2345,14 @@ static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return ret;
/* Restore back the primary extradata. */
av_free(st->codecpar->extradata);
av_freep(&st->codecpar->extradata);
st->codecpar->extradata_size = sc->extradata_size[0];
st->codecpar->extradata = av_mallocz(sc->extradata_size[0] + AV_INPUT_BUFFER_PADDING_SIZE);
if (!st->codecpar->extradata)
return AVERROR(ENOMEM);
memcpy(st->codecpar->extradata, sc->extradata[0], sc->extradata_size[0]);
if (sc->extradata_size[0]) {
st->codecpar->extradata = av_mallocz(sc->extradata_size[0] + AV_INPUT_BUFFER_PADDING_SIZE);
if (!st->codecpar->extradata)
return AVERROR(ENOMEM);
memcpy(st->codecpar->extradata, sc->extradata[0], sc->extradata_size[0]);
}
return 0;
}