mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
2.8 KiB
113 lines
2.8 KiB
/* |
|
* 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
|
|
|