ffmpeg/libavcodec/arm/mdct_fixed_init_arm.c

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2016-01-30 13:45:28 +00:00
/*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/arm/cpu.h"
#define FFT_FLOAT 0
#include "libavcodec/fft.h"
void ff_mdct_fixed_calc_neon(FFTContext *s, FFTSample *o, const FFTSample *i);
void ff_mdct_fixed_calcw_neon(FFTContext *s, FFTDouble *o, const FFTSample *i);
av_cold void ff_mdct_fixed_init_arm(FFTContext *s)
{
int cpu_flags = av_get_cpu_flags();
if (have_neon(cpu_flags)) {
if (!s->inverse && s->nbits >= 3) {
s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE;
s->mdct_calc = ff_mdct_fixed_calc_neon;
s->mdct_calcw = ff_mdct_fixed_calcw_neon;
}
}
}