Chiebot-Mirror/FFmpeg - FFmpeg - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Rémi Denis-Courmont	73dea2bb91	lavc/jpeg2000dsp: R-V V ict_float jpeg2000_ict_float_c: 3112.2 jpeg2000_ict_float_rvv_f32: 1225.0	1 year ago
Rémi Denis-Courmont	b2a441a3be	lavc/jpeg2000dsp: make coefficients extern This is so that they can be loaded from assembler, rather than duplicated.	1 year ago
Andreas Rheinhardt	3b09e8f5e9	avcodec/jpeg2000dsp: Use unsigned to avoid overflow Affected the jpeg2000dsp checkasm test. Reviewed-by: Tomas Härdin <git@haerdin.se> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago
Andreas Rheinhardt	40e6575aa3	all: Replace if (ARCH_FOO) checks by #if ARCH_FOO This is more spec-compliant because it does not rely on dead-code elimination by the compiler. Especially MSVC has problems with this, as can be seen in https://ffmpeg.org/pipermail/ffmpeg-devel/2022-May/296373.html or https://ffmpeg.org/pipermail/ffmpeg-devel/2022-May/297022.html This commit does not eliminate every instance where we rely on dead code elimination: It only tackles branching to the initialization of arch-specific dsp code, not e.g. all uses of CONFIG_ and HAVE_ checks. But maybe it is already enough to compile FFmpeg with MSVC with whole-programm-optimizations enabled (if one does not disable too many components). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	3 years ago
Michael Niedermayer	b3192c64b5	avcodec/jpeg2000dsp: Fix integer overflows in ict_int() Fixes: signed integer overflow: 46802 * -71230 cannot be represented in type 'int' Fixes: 4756/clusterfuzz-testcase-minimized-4812495563784192 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	2d025e7428	avcodec/jpeg2000dsp: Fix multiple integer overflows in ict_int() Fixes: runtime error: signed integer overflow: 22553 * -188962 cannot be represented in type 'int' Fixes: 3042/clusterfuzz-testcase-minimized-5174210131394560 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	c746f92a8e	avcodec/jpeg2000dsp: Reorder operations in ict_int() to avoid 2 integer overflows Fixes: runtime error: signed integer overflow: 58065 * 51981 cannot be represented in type 'int' Fixes: 2271/clusterfuzz-testcase-minimized-5778297776504832 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
James Almer	7912a6830d	avcodec/jpeg200dsp: add ff_ict_float_{sse,avx} Original intrinsics version by Nicolas Bertrand. Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>	10 years ago
James Almer	82f8eb5f77	jpeg2000: split off inverse MCT as Jpeg2000DSP This makes the addition of arch optimized functions easier. Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Anton Khirnov <anton@khirnov.net>	10 years ago
James Almer	c9f2ec8a34	jpeg2000: split off inverse MCT decoding as Jpeg2000DSP This makes the addition of arch optimized functions easier. Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>	10 years ago