FFmpeg/libavcodec/riscv/audiodsp_init.c

/*
 * 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 "libavcodec/audiodsp.h"

void ff_vector_clipf_rvf(float *dst, const float *src, int len, float min, float max);

int32_t ff_scalarproduct_int16_rvv(const int16_t *v1, const int16_t *v2, int len);
void ff_vector_clip_int32_rvv(int32_t *dst, const int32_t *src, int32_t min,
                              int32_t max, unsigned int len);
void ff_vector_clipf_rvv(float *dst, const float *src, int len, float min, float max);

av_cold void ff_audiodsp_init_riscv(AudioDSPContext *c)
{
    int flags = av_get_cpu_flags();

    if (flags & AV_CPU_FLAG_RVF)
        c->vector_clipf = ff_vector_clipf_rvf;
#if HAVE_RVV
    if (flags & AV_CPU_FLAG_RVB_ADDR) {
        if (flags & AV_CPU_FLAG_RVV_I32) {
            c->scalarproduct_int16 = ff_scalarproduct_int16_rvv;
            c->vector_clip_int32 = ff_vector_clip_int32_rvv;
        }
        if (flags & AV_CPU_FLAG_RVV_F32)
            c->vector_clipf = ff_vector_clipf_rvv;
    }
#endif
}