yading@10: /*
yading@10:  * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #include "libavutil/arm/cpu.h"
yading@10: #include "libavcodec/fft.h"
yading@10: #include "libavcodec/rdft.h"
yading@10: #include "libavcodec/synth_filter.h"
yading@10: 
yading@10: void ff_fft_permute_neon(FFTContext *s, FFTComplex *z);
yading@10: void ff_fft_calc_neon(FFTContext *s, FFTComplex *z);
yading@10: 
yading@10: void ff_imdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
yading@10: void ff_imdct_half_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
yading@10: void ff_mdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
yading@10: 
yading@10: void ff_rdft_calc_neon(struct RDFTContext *s, FFTSample *z);
yading@10: 
yading@10: void ff_synth_filter_float_neon(FFTContext *imdct,
yading@10:                                 float *synth_buf_ptr, int *synth_buf_offset,
yading@10:                                 float synth_buf2[32], const float window[512],
yading@10:                                 float out[32], const float in[32],
yading@10:                                 float scale);
yading@10: 
yading@10: av_cold void ff_fft_init_arm(FFTContext *s)
yading@10: {
yading@10:     int cpu_flags = av_get_cpu_flags();
yading@10: 
yading@10:     if (have_neon(cpu_flags)) {
yading@10: #if CONFIG_FFT
yading@10:         s->fft_permute  = ff_fft_permute_neon;
yading@10:         s->fft_calc     = ff_fft_calc_neon;
yading@10: #endif
yading@10: #if CONFIG_MDCT
yading@10:         s->imdct_calc   = ff_imdct_calc_neon;
yading@10:         s->imdct_half   = ff_imdct_half_neon;
yading@10:         s->mdct_calc    = ff_mdct_calc_neon;
yading@10:         s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE;
yading@10: #endif
yading@10:     }
yading@10: }
yading@10: 
yading@10: #if CONFIG_RDFT
yading@10: av_cold void ff_rdft_init_arm(RDFTContext *s)
yading@10: {
yading@10:     int cpu_flags = av_get_cpu_flags();
yading@10: 
yading@10:     if (have_neon(cpu_flags))
yading@10:         s->rdft_calc    = ff_rdft_calc_neon;
yading@10: }
yading@10: #endif
yading@10: 
yading@10: #if CONFIG_DCA_DECODER
yading@10: av_cold void ff_synth_filter_init_arm(SynthFilterContext *s)
yading@10: {
yading@10:     int cpu_flags = av_get_cpu_flags();
yading@10: 
yading@10:     if (have_neon(cpu_flags))
yading@10:         s->synth_filter_float = ff_synth_filter_float_neon;
yading@10: }
yading@10: #endif