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/*
* Copyright © 2022 Rémi Denis-Courmont.
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/riscv/cpu.h"
#include "libavcodec/lpc.h"
void ff_lpc_apply_welch_window_rvv(const int32_t *, ptrdiff_t, double *);
void ff_lpc_compute_autocorr_rvv(const double *, ptrdiff_t, int, double *);
av_cold void ff_lpc_init_riscv(LPCContext *c)
{
#if HAVE_RVV && (__riscv_xlen >= 64)
int flags = av_get_cpu_flags();
if ((flags & AV_CPU_FLAG_RVV_F64) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
c->lpc_apply_welch_window = ff_lpc_apply_welch_window_rvv;
if ((flags & AV_CPU_FLAG_RVB_BASIC) &&
ff_get_rv_vlenb() > c->max_order)
c->lpc_compute_autocorr = ff_lpc_compute_autocorr_rvv;
}
#endif
}
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