mov: avoid a memleak when multiple stss boxes are present

CC: libav-stable@libav.org
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
(cherry picked from commit 64f7575fbd64e5b65d5c644347408588c776f1fe)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit 577f1feb3fd1e51fd14af7ce6d79d468faa3b929)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
mjpegdec: check for pixel format changes

Fixes possible invalid memory access.

Based on code by Michael Niedermayer <michaelni@gmx.at>

CC: libav-stable@libav.org
Bug-ID: CVE-2014-8541
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
(cherry picked from commit 809c3023b699c54c90511913d3b6140dd2436550)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit aa7a19b41774ce5f8a4e43f3692a4f9d90aa5c92)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
jvdec: check frame dimensions

The frame size must be set by the caller and each dimension must be a
multiple of 8.

CC: libav-stable@libav.org
Bug-ID: CVE-2014-8542
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
(cherry picked from commit 88626e5af8d006e67189bf10b96b982502a7e8ad)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit 55788572ea7b89cdd77bab1cf4bf06d14ead34f5)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
mmvideo: check frame dimensions

The frame size must be set by the caller and each dimension must be a
multiple of 2.

CC: libav-stable@libav.org
Bug-ID: CVE-2014-8543
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
(cherry picked from commit 17ba719d9ba30c970f65747f42d5fbb1e447ca28)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit 69a930b988ff4f88ae27e4fc24ff6ed116840b5e)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
gifdec: refactor interleave end handling

Fixes invalid writes with very small image heights.

CC: libav-stable@libav.org
Bug-ID: CVE-2014-8547
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit 0b39ac6f54505a538c21fe49a626de94c518c903)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit eac49477aa95cf727d87d2741ee8e60be59d394b)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
smc: fix the bounds check

Fixes invalid writes when there are more blocks in a run than total
remaining blocks.

CC: libav-stable@libav.org
Bug-ID: CVE-2014-8548
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit d423dd72be451462c6fb1cbbe313bed0194001ab)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit 58dc526ebf722d33bf09275c1241674e0e6b9ef1)
Signed-off-by: Anton Khirnov <anton@khirnov.net>