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66 lines
1.9 KiB
66 lines
1.9 KiB
/* |
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* Copyright © 2023 Rémi Denis-Courmont. |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/riscv/asm.S" |
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func ff_g722_apply_qmf_rvv, zve32x |
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lla t0, qmf_coeffs |
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vsetivli zero, 12, e16, m2, ta, ma |
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vlseg2e16.v v28, (a0) |
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vlseg2e16.v v24, (t0) |
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vwmul.vv v16, v28, v24 |
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vwmul.vv v20, v30, v26 |
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vsetivli zero, 12, e32, m4, ta, ma |
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vmv.s.x v10, zero |
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vredsum.vs v8, v16, v10 |
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vredsum.vs v9, v20, v10 |
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vmv.x.s t0, v8 |
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vmv.x.s t1, v9 |
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sw t0, 4(a1) |
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sw t1, 0(a1) |
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ret |
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endfunc |
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const qmf_coeffs, align=2 |
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.short 3 |
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.short -11 |
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.short -11 |
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.short 53 |
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.short 12 |
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.short -156 |
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.short 32 |
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.short 362 |
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.short -210 |
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.short -805 |
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.short 951 |
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.short 3876 |
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.short 3876 |
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.short 951 |
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.short -805 |
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.short -210 |
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.short 362 |
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.short 32 |
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.short -156 |
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.short 12 |
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.short 53 |
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.short -11 |
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.short -11 |
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.short 3 |
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endconst
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