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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 <stdint.h>
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/alacdsp.h"
void ff_alac_decorrelate_stereo_rvv(int32_t *buffer[2], int nb_samples,
int decorr_shift, int decorr_left_weight);
void ff_alac_append_extra_bits_mono_rvv(int32_t *buffer[2],
int32_t *extra_bits_buf[2],
int extra_bits, int channels,
int nb_samples);
void ff_alac_append_extra_bits_stereo_rvv(int32_t *buffer[2],
int32_t *extra_bits_buf[2],
int extra_bits, int channels,
int nb_samples);
av_cold void ff_alacdsp_init_riscv(ALACDSPContext *c)
{
#if HAVE_RVV && (__riscv_xlen == 64)
int flags = av_get_cpu_flags();
if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB)) {
c->decorrelate_stereo = ff_alac_decorrelate_stereo_rvv;
c->append_extra_bits[0] = ff_alac_append_extra_bits_mono_rvv;
c->append_extra_bits[1] = ff_alac_append_extra_bits_stereo_rvv;
}
#endif
}
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