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/*
* Copyright © 2023 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 <stddef.h>
#include <stdint.h>
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavcodec/ac3dsp.h"
void ff_ac3_exponent_min_rvb(uint8_t *exp, int, int);
void ff_ac3_exponent_min_rvv(uint8_t *exp, int, int);
void ff_extract_exponents_rvb(uint8_t *exp, int32_t *coef, int nb_coefs);
void ff_extract_exponents_rvvb(uint8_t *exp, int32_t *coef, int nb_coefs);
void ff_float_to_fixed24_rvv(int32_t *dst, const float *src, size_t len);
void ff_sum_square_butterfly_int32_rvv(int64_t *, const int32_t *,
const int32_t *, int);
void ff_sum_square_butterfly_float_rvv(float *, const float *,
const float *, int);
av_cold void ff_ac3dsp_init_riscv(AC3DSPContext *c)
{
#if HAVE_RV
int flags = av_get_cpu_flags();
if (flags & AV_CPU_FLAG_RVB_BASIC)
c->ac3_exponent_min = ff_ac3_exponent_min_rvb;
if (flags & AV_CPU_FLAG_RVV_I32)
c->ac3_exponent_min = ff_ac3_exponent_min_rvv;
if (flags & AV_CPU_FLAG_RVB_ADDR) {
if (flags & AV_CPU_FLAG_RVB_BASIC)
c->extract_exponents = ff_extract_exponents_rvb;
# if HAVE_RV_ZVBB
if (flags & AV_CPU_FLAG_RV_ZVBB)
c->extract_exponents = ff_extract_exponents_rvvb;
# endif
if (flags & AV_CPU_FLAG_RVV_F32) {
c->float_to_fixed24 = ff_float_to_fixed24_rvv;
c->sum_square_butterfly_float = ff_sum_square_butterfly_float_rvv;
}
# if __riscv_xlen >= 64
if (flags & AV_CPU_FLAG_RVV_I64)
c->sum_square_butterfly_int32 = ff_sum_square_butterfly_int32_rvv;
# endif
}
#endif
}
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