FFmpeg

Commit Graph

Author	SHA1	Message	Date
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	f8f5668df5	avcodec/aacpsdsp_template: Fix integer overflow in ps_hybrid_analysis_c() Fixes: signed integer overflow: -1539565182 + -798086761 cannot be represented in type 'int' Fixes: 14807/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-564925382682214 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	6 years ago
Michael Niedermayer	47db5763e2	avcodec/aacpsdsp_template: Fix integer overflow in ps_stereo_interpolate_c() Fixes: signed integer overflow: -1813244069 + -1407981383 cannot be represented in type 'int' Fixes: 8823/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5643295618236416 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	6 years ago
Michael Niedermayer	62cb6fadf3	oavcodec/aacpsdsp_template: Use unsigned for hs0X to prevent undefined behavior Fixes: signed integer overflow: 1073741842 + 1784008138 cannot be represented in type 'int' Fixes: 6792/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5677589835284480 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	2afe05402f	avcodec/aacpsdsp_template: Fix integer overflows in ps_decorrelate_c() Fixes: runtime error: signed integer overflow: 1939661764 - -454942263 cannot be represented in type 'int' Fixes: 3191/clusterfuzz-testcase-minimized-5688798451073024 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	0181b202cc	avcodec/aacpsdsp_template: Fix undefined integer overflow in ps_add_squares_c() Fixes runtime error: signed integer overflow: 1997494407 + 613252359 cannot be represented in type 'int' Fixes: 2014/clusterfuzz-testcase-minimized-5186337030275072 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
Clément Bœsch	b12a36170b	lavc/aacpsdsp: use ptrdiff_t for stride in hybrid_analysis	8 years ago
Clément Bœsch	ff0ecef624	lavc/aarch64: add a few SIMD functions for AAC PS ☭ tests/checkasm/checkasm --bench --test=aacpsdsp checkasm: using random seed 3318985180 MMX implied by specified flags MMX implied by specified flags NEON: - aacpsdsp.add_squares [OK] - aacpsdsp.mul_pair_single [OK] - aacpsdsp.hybrid_analysis [OK] - aacpsdsp.stereo_interpolate [OK] checkasm: all 5 tests passed nop: 10.0 ps_add_squares_c: 63221.2 ps_add_squares_neon: 22311.7 ps_hybrid_analysis_c: 2466.6 ps_hybrid_analysis_neon: 1521.9 ps_mul_pair_single_c: 68592.0 ps_mul_pair_single_neon: 17426.6 ps_stereo_interpolate_c: 72344.3 ps_stereo_interpolate_neon: 72308.8 ps_stereo_interpolate_ipdopd_c: 117415.2 ps_stereo_interpolate_ipdopd_neon: 113386.3	8 years ago
Clément Bœsch	9bbb0fbd31	lavc/aacpsdsp: fix a few spaces (cosmetics)	8 years ago
James Almer	9dcaae70f2	x86/aacpsdsp: add SSE and SSE3 optimized functions Between 1.5 and 2.5 times faster Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: James Almer <jamrial@gmail.com>	10 years ago
Djordje Pesut	5fd81cf6f0	avcodec: Implementation of AAC_fixed_decoder (PS-module) Add fixed point implementation. Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	10 years ago

11 Commits (53523ed530d0aceb0581c2e4f120ae3915e9bc05)