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https://github.com/FFmpeg/FFmpeg.git
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616fdeaea3
There is no known (real) hardware with V and without the complete B extension. B was indeed required in the RISC-V application profile from 2022, earlier than V. There should not be any relevant hardware in the future either. In practice, different R-V Vector optimisations in FFmpeg already depend on every constituent of the B extension anyhow, so it would not work well.
67 lines
2.5 KiB
C
67 lines
2.5 KiB
C
/*
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* Copyright © 2022 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 "config.h"
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#include "libavutil/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavcodec/aacpsdsp.h"
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void ff_ps_add_squares_rvv(float *dst, const float (*src)[2], int n);
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void ff_ps_mul_pair_single_rvv(float (*dst)[2], float (*src0)[2], float *src1,
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int n);
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void ff_ps_hybrid_analysis_rvv(float (*out)[2], float (*in)[2],
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const float (*filter)[8][2], ptrdiff_t, int n);
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void ff_ps_hybrid_analysis_ileave_rvv(float (*out)[32][2], float L[2][38][64],
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int i, int len);
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void ff_ps_hybrid_synthesis_deint_rvv(float out[2][38][64], float (*in)[32][2],
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int i, int len);
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void ff_ps_stereo_interpolate_rvv(float (*l)[2], float (*r)[2],
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float h[2][4], float h_step[2][4], int len);
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av_cold void ff_psdsp_init_riscv(PSDSPContext *c)
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{
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#if HAVE_RVV
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int flags = av_get_cpu_flags();
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if (flags & AV_CPU_FLAG_RVV_I32) {
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if (flags & AV_CPU_FLAG_RVV_F32) {
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if (flags & AV_CPU_FLAG_RVB) {
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if (flags & AV_CPU_FLAG_RVV_I64)
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c->add_squares = ff_ps_add_squares_rvv;
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c->mul_pair_single = ff_ps_mul_pair_single_rvv;
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}
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c->hybrid_analysis = ff_ps_hybrid_analysis_rvv;
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}
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if (flags & AV_CPU_FLAG_RVB) {
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c->hybrid_analysis_ileave = ff_ps_hybrid_analysis_ileave_rvv;
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if (flags & AV_CPU_FLAG_RVV_I64)
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c->hybrid_synthesis_deint = ff_ps_hybrid_synthesis_deint_rvv;
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if (flags & AV_CPU_FLAG_RVV_F32)
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c->stereo_interpolate[0] = ff_ps_stereo_interpolate_rvv;
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}
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}
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#endif
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}
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