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dsicinav: Clip the source size to the expected maximum

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A packet larger than cin->bitmap_size does not make sense.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit fd81899321)

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Luca Barbato
2013-07-19 21:34:21 +02:00
parent 95275723ae
commit 068bc633f2
1 changed files with 2 additions and 0 deletions
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libavcodec/dsicinav.c
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@@ -244,6 +244,8 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
} }
} }
bitmap_frame_size = FFMIN(cin->bitmap_size, bitmap_frame_size);
/* note: the decoding routines below assumes that /* note: the decoding routines below assumes that
* surface.width = surface.pitch */ * surface.width = surface.pitch */
switch (bitmap_frame_type) { switch (bitmap_frame_type) {