Averaging over 2 pixels doesn't work correctly for the last pixel, because the
rest of the buffer is not initialized.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 87513d6545)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This fixes the use of uninitialized values in avpriv_do_elbg.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ab759f8f4a)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This fixes freeing the frame buffer twice on cleanup leading to a crash.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 39e4ed7c1d)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Based on patch by Francisco Blas Izquierdo Riera
Commit message partly taken from carl
fixes a compilation
error in mlpdsp_init.c with -fstack-check and some gcc compilers (I
reproduced the issue with gcc 4.7.3) by simplifying the code.
See also https://bugs.gentoo.org/show_bug.cgi?id=471756
$ make libavcodec/x86/mlpdsp_init.o
libavcodec/x86/mlpdsp_init.c: In function ‘mlp_filter_channel_x86’:
libavcodec/x86/mlpdsp_init.c:142:5: error: can’t find a register in
class ‘GENERAL_REGS’ while reloading ‘asm’
libavcodec/x86/mlpdsp_init.c:142:5: error: ‘asm’ operand has impossible
constraints
4551 -> 4509 dezicycles
Reviewed-by: Ramiro Polla <ramiro.polla@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 03f39fbb2a)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This prevents using a wrong (first thread's) AVCodecContext if decoding
a frame in the first pass over all threads fails.
(cherry picked from commit a06b0b1295)
Conflicts:
libavcodec/h264.c
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Missed this hunk in first commit
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 80a851aa5e)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Instead check for all mov code-points when demuxing avi
and print a warning if a video codec is found like this.
Fixes ticket #4307.
(cherry picked from commit 2e0b5f5c90)
Conflicts:
libavformat/riff.c
When OpenCL kernels are compiled, is_compiled flag is being set for each
kernel. But, in opencl uninit, this flag is not being cleared.
This causes an error when an OpenCL kernel is tried on different OpenCL
devices on same platform.
Here is the patch with a fix
Reviewed-by; Wei Gao <highgod0401@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0f2359b869)
ceilf() can only work if the reminder of the division is not 0.
This fixes memory errors with for instance:
ffmpeg -f lavfi -i testsrc=s=800x500 -threads 3 -vf dctdnoiz -frames:v 1 -f null -
(cherry picked from commit eb7efaa924)
Tested-by: Andreas Haupt
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cab6302534)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This might fix a hypothetical race condition
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f111831ed6)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array read
Fixes: asan_static-oob_30328b6_719_cov_3325483287_H264_artifacts_motion.h264
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 69aa79365c)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This reverts commit 3b4ffba3af.
Unbreaks the SSSE3 code on mingw32
Conflicts:
libavcodec/x86/lossless_audiodsp.asm
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a6c2c8fe3f)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This is simpler and more robust, and fixes mismatching XMM save restore
mismatches
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f1214763af)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This is needed as the mmx code is used as fallback from the ssse3 code
Suggested-by: jamrial
Tested-by: wm4
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3b4ffba3af)
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>
Fixes integer overflow and 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 fd52d2d3d1)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array accesses
Fixes: asan_heap-oob_1c1a4ea_1242_cov_2274415971_TESTcmyk.jpg
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit fabbfaa095)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This can lead to an endless loop by seeking back a few bytes after each
attempted chunk read. Assuming negative sizes are always invalid, this
is easy to fix. Other code in this demuxer treats negative sizes as
invalid as well.
Fixes ticket #4262.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 56cc024220)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
