mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
114 lines
2.8 KiB
ArmAsm
114 lines
2.8 KiB
ArmAsm
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "libavutil/aarch64/asm.S"
|
|
|
|
// 0.85..^1 0.85..^2 0.85..^3 0.85..^4
|
|
const tab_st, align=4
|
|
.word 0x3f599a00, 0x3f38f671, 0x3f1d382a, 0x3f05a32f
|
|
endconst
|
|
const tab_x0, align=4
|
|
.word 0x0, 0x3f599a00, 0x3f38f671, 0x3f1d382a
|
|
endconst
|
|
const tab_x1, align=4
|
|
.word 0x0, 0x0, 0x3f599a00, 0x3f38f671
|
|
endconst
|
|
const tab_x2, align=4
|
|
.word 0x0, 0x0, 0x0, 0x3f599a00
|
|
endconst
|
|
|
|
function ff_opus_deemphasis_neon, export=1
|
|
movrel x4, tab_st
|
|
ld1 {v4.4s}, [x4]
|
|
movrel x4, tab_x0
|
|
ld1 {v5.4s}, [x4]
|
|
movrel x4, tab_x1
|
|
ld1 {v6.4s}, [x4]
|
|
movrel x4, tab_x2
|
|
ld1 {v7.4s}, [x4]
|
|
|
|
fmul v0.4s, v4.4s, v0.s[0]
|
|
|
|
1: ld1 {v1.4s, v2.4s}, [x1], #32
|
|
|
|
fmla v0.4s, v5.4s, v1.s[0]
|
|
fmul v3.4s, v7.4s, v2.s[2]
|
|
|
|
fmla v0.4s, v6.4s, v1.s[1]
|
|
fmla v3.4s, v6.4s, v2.s[1]
|
|
|
|
fmla v0.4s, v7.4s, v1.s[2]
|
|
fmla v3.4s, v5.4s, v2.s[0]
|
|
|
|
fadd v1.4s, v1.4s, v0.4s
|
|
fadd v2.4s, v2.4s, v3.4s
|
|
|
|
fmla v2.4s, v4.4s, v1.s[3]
|
|
|
|
st1 {v1.4s, v2.4s}, [x0], #32
|
|
fmul v0.4s, v4.4s, v2.s[3]
|
|
|
|
subs w2, w2, #8
|
|
b.gt 1b
|
|
|
|
mov s0, v2.s[3]
|
|
|
|
ret
|
|
endfunc
|
|
|
|
function ff_opus_postfilter_neon, export=1
|
|
ld1 {v0.4s}, [x2]
|
|
dup v1.4s, v0.s[1]
|
|
dup v2.4s, v0.s[2]
|
|
dup v0.4s, v0.s[0]
|
|
|
|
add w1, w1, #2
|
|
sub x1, x0, x1, lsl #2
|
|
|
|
ld1 {v3.4s}, [x1]
|
|
fmul v3.4s, v3.4s, v2.4s
|
|
|
|
1: add x1, x1, #4
|
|
ld1 {v4.4s}, [x1]
|
|
add x1, x1, #4
|
|
ld1 {v5.4s}, [x1]
|
|
add x1, x1, #4
|
|
ld1 {v6.4s}, [x1]
|
|
add x1, x1, #4
|
|
ld1 {v7.4s}, [x1]
|
|
|
|
fmla v3.4s, v7.4s, v2.4s
|
|
fadd v6.4s, v6.4s, v4.4s
|
|
|
|
ld1 {v4.4s}, [x0]
|
|
fmla v4.4s, v5.4s, v0.4s
|
|
|
|
fmul v6.4s, v6.4s, v1.4s
|
|
fadd v6.4s, v6.4s, v3.4s
|
|
|
|
fadd v4.4s, v4.4s, v6.4s
|
|
fmul v3.4s, v7.4s, v2.4s
|
|
|
|
st1 {v4.4s}, [x0], #16
|
|
|
|
subs w3, w3, #4
|
|
b.gt 1b
|
|
|
|
ret
|
|
endfunc
|