mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
1.6 KiB
46 lines
1.6 KiB
/* |
|
* 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; |
|
s->fft_calc = ff_fft_fixed_calc_neon; |
|
|
|
#if CONFIG_MDCT |
|
if (!s->inverse && s->mdct_bits >= 5) { |
|
s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE; |
|
s->mdct_calc = ff_mdct_fixed_calc_neon; |
|
s->mdct_calcw = ff_mdct_fixed_calcw_neon; |
|
} |
|
#endif |
|
} |
|
}
|
|
|