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>
av_add_index_entry() can fail, for example because the parameters are
invalid, or because memory allocation fails. Check this; it can actually
happen with corrupted files.
The second hunk is just for robustness. Just in case functions like
ff_reduce_index() remove entries. (Not sure if this can actually
happen.)
Fixes ticket #4294.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6a0cd529a3)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
also add GET_TMP2() macro
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit fc35df8931)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The mb address fits in int
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 592ba6ec10)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This is probably unneeded and normal int would be fine, but its
safer to use LL and this isnt speed relevant
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b4ad2853c5)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The <<31 case needs LL
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c77cc2c176)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
all values before 2.5 seem to be filled in now
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8c8ee17e8d)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
also add deprecation note for avcodec_get_pix_fmt_loss(), avcodec_find_best_pix_fmt_of_2()
Found-by: wm4
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f7a1c5e4d2)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The vec_ste calls were mistakenly changed to vec_vsx_st in c5ca76a, which
caused stack smashing.
Changing them back fixes crashes on ppc64el, when configured with
--toolchain=hardened.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 840c3c0531)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes: misdetection of test2.mp3
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e15b29bb18)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
