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mov: reset dref_count on realloc to keep values consistent. 

This fixes a potential crash.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-15 23:37:09 +02:00
parent 35e0496a7b
commit 689e59b7ff
1 changed files with 1 additions and 0 deletions
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libavformat/mov.c
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@ -401,6 +401,7 @@ static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (entries >= UINT_MAX / sizeof(*sc->drefs))
return AVERROR_INVALIDDATA;
av_free(sc->drefs);
sc->drefs_count = 0;
sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
if (!sc->drefs)
return AVERROR(ENOMEM);