Fixes use of uninitialized memory
Fixes: asan_heap-oob_35ca682_1474_cov_3230122439_aletrek_tga_16bit.mov
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 007498fc1a)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array read
Fixes: asan_heap-oob_35ca682_1474_cov_3230122439_aletrek_tga_16bit.mov
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1895d414aa)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array read
Fixes: asan_heap-oob_1fb2f9b_3780_cov_3984375136_usf.mkv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 692b22626e)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Prevent a division by zero down the codepath.
Sample-Id: 00001721-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 3a177a9cca)
Improves rgb -> gray16 conversion
Fixes Ticket3422
The pam and png output files look visually similar, in both cases the
dynamics increase to 0x0 -> 0xfffb.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 37c07d4529)
* commit '6b3ff6f91a535d6383f41ca7bdf760165dcb6015':
swscale: provide a default scaler if none is set
Conflicts:
libswscale/utils.c
The default is left at bicubic until someone has compared the scalers
properly speed and quality wise.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Lanczos for general case, sinc for upscaling, Gaussian for
downscaling. According to current literature these scalers
should be the best quality-wise algorithms for each case.
Inspired from a patch by wm4 <nfxjfg@googlemail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Previously this would have lead to a memcpy(a,a) which violates the
requirement of non overlapping src and dst.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '79aec43ce813a3e270743ca64fa3f31fa43df80b':
x86: Add and use more convenience macros to check CPU extension availability
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '1909f6b1b6da2db371c179bed5a19aaf979b7557':
swscale: cosmetics: Drop silly camelCase from swScale function pointer name
Conflicts:
libswscale/swscale_unscaled.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'f61bece684d9685b07895508e6c1c733b5564ccf':
ppc: Add and use convenience macro to check for AltiVec availability
Conflicts:
libavcodec/ppc/dsputil_ppc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This allows specifying more dither algorithms without using up flags and
without ambiguities.
Also initialize the new field based on the flags and use it.
Note, improving the logic of the checks is left to subsequent
commits, this here only switches from flags to enum.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
