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43 lines
1.5 KiB
43 lines
1.5 KiB
/* |
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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 "libavutil/riscv/cpu.h" |
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#include "libavcodec/lpc.h" |
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void ff_lpc_apply_welch_window_rvv(const int32_t *, ptrdiff_t, double *); |
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void ff_lpc_compute_autocorr_rvv(const double *, ptrdiff_t, int, double *); |
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av_cold void ff_lpc_init_riscv(LPCContext *c) |
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{ |
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#if HAVE_RVV && (__riscv_xlen >= 64) |
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int flags = av_get_cpu_flags(); |
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if ((flags & AV_CPU_FLAG_RVV_F64) && (flags & AV_CPU_FLAG_RVB)) { |
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c->lpc_apply_welch_window = ff_lpc_apply_welch_window_rvv; |
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if (ff_get_rv_vlenb() > c->max_order) |
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c->lpc_compute_autocorr = ff_lpc_compute_autocorr_rvv; |
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} |
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#endif |
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}
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