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svq1dec: call avcodec_set_dimensions() after dimensions changed.

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Fixes NGS00148, CVE-2011-4579

Found-by: Phillip Langlois
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

(cherry picked from commit 6e24b9488e67849a28e64a8056e05f83cf439229)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit 0eca0da06e40b73af495cc05fbcfaa030fcf78ea)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
This commit is contained in:
Michael Niedermayer 2011-11-18 19:10:21 +01:00 committed by Reinhard Tartler
parent 94aacaf508
commit 8ddc0b491d
1 changed files with 1 additions and 0 deletions
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libavcodec/svq1dec.c
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@ -678,6 +678,7 @@ static int svq1_decode_frame(AVCodecContext *avctx,
#endif
return result;
}
avcodec_set_dimensions(avctx, s->width, s->height);
//FIXME this avoids some confusion for "B frames" without 2 references
//this should be removed after libavcodec can handle more flexible picture types & ordering