aacencdsp_init.c

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/*
 * AAC encoder assembly optimizations
 * Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
 *
 * 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/float_dsp.h"
#include "libavutil/x86/cpu.h"
#include "libavcodec/aacenc.h"
 
void ff_abs_pow34_sse(float *out, const float *in, const int size);
 
void ff_aac_quantize_bands_sse2(int *out, const float *in, const float *scaled,
                                int size, int is_signed, int maxval, const float Q34,
                                const float rounding);
 
av_cold void ff_aac_dsp_init_x86(AACEncContext *s)
{
    int cpu_flags = av_get_cpu_flags();
 
    if (EXTERNAL_SSE(cpu_flags))
        s->abs_pow34   = ff_abs_pow34_sse;
 
    if (EXTERNAL_SSE2(cpu_flags))
        s->quant_bands = ff_aac_quantize_bands_sse2;
}