0,0 → 1,48 |
/* |
* Copyright (c) 2009 Mans Rullgard <mans@mansr.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 "libavutil/arm/cpu.h" |
|
#define CONFIG_FFT_FLOAT 0 |
#include "libavcodec/fft.h" |
|
void ff_fft_fixed_calc_neon(FFTContext *s, FFTComplex *z); |
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_fft_fixed_init_arm(FFTContext *s) |
{ |
int cpu_flags = av_get_cpu_flags(); |
|
if (have_neon(cpu_flags)) { |
s->fft_permutation = FF_FFT_PERM_SWAP_LSBS; |
#if CONFIG_FFT |
s->fft_calc = ff_fft_fixed_calc_neon; |
#endif |
|
#if CONFIG_MDCT |
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; |
} |
#endif |
} |
} |