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Linshizhi
ffmpeg.wasm-core
Commits
5dd045eb
Commit
5dd045eb
authored
Jul 02, 2011
by
Mans Rullgard
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ARM: ac3: update ff_ac3_extract_exponents_neon per
8b7b2d6a
Signed-off-by:
Mans Rullgard
<
mans@mansr.com
>
parent
8aa63f0b
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ac3dsp_neon.S
libavcodec/arm/ac3dsp_neon.S
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libavcodec/arm/ac3dsp_neon.S
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5dd045eb
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@@ -95,19 +95,14 @@ function ff_float_to_fixed24_neon, export=1
endfunc
function ff_ac3_extract_exponents_neon, export=1
vmov.i32 q14, #24
vmov.i32 q15, #8
1:
vld1.32 {q0}, [r1,:128]
vld1.32 {q0}, [r1,:128]
!
vabs.s32 q1, q0
vclz.i32 q3, q1
vsub.i32 q3, q3, q15
vcge.s32 q2, q3, q14
vbit q3, q14, q2
vbic q0, q0, q2
vmovn.i32 d6, q3
vmovn.i16 d6, q3
vst1.32 {q0}, [r1,:128]!
vst1.32 {d6[0]}, [r0,:32]!
subs r2, r2, #4
bgt 1b
...
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