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FFmpeg/libavcodec/arm/fft_fixed_init_arm.c
Carl Eugen Hoyos cf36180143 Only set accelerated arm fft functions if fft is enabled.
Fixes lavc compilation (linking) for configurations without fft.

Reported-by: tyler wear
Tested-by: Gavin Kinsey
2013-02-17 17:29:55 +01:00

49 lines
1.6 KiB
C

/*
* 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
}
}