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7 Commits

Author SHA1 Message Date
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>
 2017-11-13 19:54:20 +01:00
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>
 2017-08-27 19:40:28 +02:00
Clément Bœsch
b12a36170b lavc/aacpsdsp: use ptrdiff_t for stride in hybrid_analysis 2017-06-28 12:22:39 +02:00
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
 2017-06-28 12:22:39 +02:00
Clément Bœsch
9bbb0fbd31 lavc/aacpsdsp: fix a few spaces (cosmetics) 2017-06-28 12:22:39 +02:00
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>
 2015-07-30 19:01:15 -03:00
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>
 2015-07-22 21:51:28 +02:00