svq1dec: call avcodec_set_dimensions() after dimensions changed.
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>
(cherry picked from commit 8ddc0b491d3c9c11c1e3d638fda51b4b604d32f4)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c
index 7fef10b..7c4e5c9 100644
--- a/libavcodec/svq1dec.c
+++ b/libavcodec/svq1dec.c
@@ -676,6 +676,7 @@
#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