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57 lines
1.9 KiB
57 lines
1.9 KiB
/* |
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* Copyright © 2024 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 <assert.h> |
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#include <stdint.h> |
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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 "libavutil/riscv/cpu.h" |
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#include "libavutil/lls.h" |
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void ff_lls_update_covariance_rvv(double covar[][36], const double *var, |
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int count); |
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double ff_scalarproduct_double_rvv(const double *, const double *, size_t); |
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static void ff_lls_update_rvv(struct LLSModel *m, const double *var) |
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{ |
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ff_lls_update_covariance_rvv(m->covariance, var, m->indep_count + 1); |
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} |
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static double ff_lls_evaluate_rvv(struct LLSModel *m, const double *var, |
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int order) |
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{ |
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return ff_scalarproduct_double_rvv(m->coeff[order], var, order + 1); |
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} |
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av_cold void ff_init_lls_riscv(LLSModel *m) |
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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_RVB_ADDR) && (flags & AV_CPU_FLAG_RVV_F64)) { |
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if ((flags & AV_CPU_FLAG_RVB_BASIC) && |
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ff_get_rv_vlenb() > m->indep_count) |
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m->update_lls = ff_lls_update_rvv; |
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m->evaluate_lls = ff_lls_evaluate_rvv; |
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} |
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#endif |
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}
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