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kmvc: Clip pixel position to valid range

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Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 4e7f0b082d8c4b360312216b9241bec65ff63b35)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>

Conflicts:
	libavcodec/kmvc.c
This commit is contained in:
Luca Barbato 2013-07-01 03:05:41 +02:00 committed by Reinhard Tartler
parent e22a5d490d
commit 79edb9adf6
1 changed files with 3 additions and 1 deletions
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4
libavcodec/kmvc.c
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@ -29,6 +29,8 @@
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
#include "libavutil/common.h"
#define KMVC_KEYFRAME 0x80
#define KMVC_PALETTE 0x40
@ -55,7 +57,7 @@ typedef struct BitBuf {
int bitbuf;
} BitBuf;
#define BLK(data, x, y) data[(x) + (y) * 320]
#define BLK(data, x, y) data[av_clip((x) + (y) * 320, 0, 320 * 200 -1)]
#define kmvc_init_getbits(bb, g) bb.bits = 7; bb.bitbuf = bytestream2_get_byte(g);