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.
68 lines
1.9 KiB
68 lines
1.9 KiB
/* |
|
* Copyright © 2023 Rémi Denis-Courmont. |
|
* |
|
* 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/riscv/asm.S" |
|
|
|
func ff_g722_apply_qmf_rvv, zve32x |
|
lla t0, qmf_coeffs |
|
vsetivli zero, 12, e16, m2, ta, ma |
|
vlseg2e16.v v28, (a0) |
|
addi t1, t0, 12 * 2 |
|
vle16.v v24, (t0) |
|
vle16.v v26, (t1) |
|
vwmul.vv v16, v28, v24 |
|
vwmul.vv v20, v30, v26 |
|
vsetivli zero, 12, e32, m4, ta, ma |
|
vmv.s.x v10, zero |
|
vredsum.vs v8, v16, v10 |
|
vredsum.vs v9, v20, v10 |
|
vmv.x.s t0, v8 |
|
vmv.x.s t1, v9 |
|
sw t0, 4(a1) |
|
sw t1, 0(a1) |
|
ret |
|
endfunc |
|
|
|
const qmf_coeffs, align=2 |
|
.short 3 |
|
.short -11 |
|
.short 12 |
|
.short 32 |
|
.short -210 |
|
.short 951 |
|
.short 3876 |
|
.short -805 |
|
.short 362 |
|
.short -156 |
|
.short 53 |
|
.short -11 |
|
.short -11 |
|
.short 53 |
|
.short -156 |
|
.short 362 |
|
.short -805 |
|
.short 3876 |
|
.short 951 |
|
.short -210 |
|
.short 32 |
|
.short 12 |
|
.short -11 |
|
.short 3 |
|
endconst
|
|
|