| /* |
| * 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 |
