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67 lines
1.9 KiB
67 lines
1.9 KiB
1 year ago
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/*
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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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