opusdsp_init.c

Go to the documentation of this file.

/*
 * 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/x86/cpu.h"
#include "libavcodec/opus/dsp.h"
 
void ff_opus_postfilter_fma3(float *data, int period, float *gains, int len);
float ff_opus_deemphasis_fma3(float *out, float *in, float coeff, const float *weights, int len);
 
av_cold void ff_opus_dsp_init_x86(OpusDSP *ctx)
{
    int cpu_flags = av_get_cpu_flags();
 
    if (EXTERNAL_FMA3(cpu_flags)) {
        ctx->postfilter = ff_opus_postfilter_fma3;
        ctx->deemphasis = ff_opus_deemphasis_fma3;
    }
}