The later may yield incorrect code for on-stack variables.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Found-by: Clang -fsanitize=shift
Reported-by: NThierry Foucu <tfoucu@google.com>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Check memory earlier, check one more allocation and clean up on error.

CC: libav-stable@libav.org
Bug-Id: CID 1257773

CC: libav-stable@libav.org
Bug-Id: CID 1194387 / CID 1194389 / CID 1194393 / CID 1206638

CC: libav-stable@libav.org
Bug-Id: CID 1197061

Signed-off-by: NDiego Biurrun <diego@biurrun.de>

Fixes Ticket3725
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes ticket #3536.

Fixes CID1197061
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

This function was introduced by ac4b32dfSigned-off-by: NMichael Niedermayer <michaelni@gmx.at>

Further performance improvements and security fixes by
Vittorio Giovara, Luca Barbato and Diego Biurrun.
Signed-off-by: NVittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>
Signed-off-by: NDiego Biurrun <diego@biurrun.de>

Signed-off-by: NDiego Biurrun <diego@biurrun.de>

Fixes overread
Fixes Ticket 3501
Found-by: NPiotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

This simply copies the "interframe without a prior keyframe" check
thats done later into vp7_decode_frame_header()
Found-by: NVittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NPeter Ross <pross@xvid.org>
Reviewed-by: BBB
previous patch reviewed by jason
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NPeter Ross <pross@xvid.org>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NPeter Ross <pross@xvid.org>
Reviewed-by: N"Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

The reason is the same as for e588615d

Based on a patch by Ronald S. Bultje <rsbultje@gmail.com>

mb_layout is either zero or non-zero.
Signed-off-by: NPeter Ross <pross@xvid.org>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

They are not measurably faster on x86, they might be somewhat faster on
other platforms due to missing emu edge SIMD, but the gain is not large
enough to justify the added complexity.

Allow supporting files for which the image stride is smaller than
the maximum block size + number of subpel mc taps, e.g. a 64x64 VP9
file or a 16x16 VP8 file with -fflags +emu_edge.

See: libavcodec/webp.c
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

See b2bed932.

This allows supporting files for which the image stride is smaller than
the max. block size + number of subpel mc taps, e.g. a 64x64 VP9 file
or a 16x16 VP8 file with -fflags +emu_edge.

This prevents emulated_edge_mc from not undoing mvy*stride-related
integer overflows.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Container and lossy decoding by Aneesh Dogra <aneesh@sugarlabs.org>
Lossless decoding by Justin Ruggles <justin.ruggles@gmail.com>

This fixes occasional failures of vp8-test-vector-010 with frame-level
multithreading enabled.
Signed-off-by: NMartin Storsjö <martin@martin.st>

This fixes occasional failures of vp8-test-vector-010 with frame-level
multithreading enabled.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

CC: libav-stable@libav.org
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

VP8L, padding and bounds checks by Pascal Massimino
Reviewed-by: NPascal Massimino <pascal.massimino@gmail.com>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>