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libavcodec/arm/fft_init_arm.c

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00001 /*
00002  * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
00003  *
00004  * This file is part of Libav.
00005  *
00006  * Libav is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2.1 of the License, or (at your option) any later version.
00010  *
00011  * Libav is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with Libav; if not, write to the Free Software
00018  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00019  */
00020 
00021 #include "libavcodec/fft.h"
00022 #include "libavcodec/rdft.h"
00023 #include "libavcodec/synth_filter.h"
00024 
00025 void ff_fft_permute_neon(FFTContext *s, FFTComplex *z);
00026 void ff_fft_calc_neon(FFTContext *s, FFTComplex *z);
00027 
00028 void ff_imdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
00029 void ff_imdct_half_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
00030 void ff_mdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
00031 
00032 void ff_rdft_calc_neon(struct RDFTContext *s, FFTSample *z);
00033 
00034 void ff_synth_filter_float_neon(FFTContext *imdct,
00035                                 float *synth_buf_ptr, int *synth_buf_offset,
00036                                 float synth_buf2[32], const float window[512],
00037                                 float out[32], const float in[32],
00038                                 float scale);
00039 
00040 av_cold void ff_fft_init_arm(FFTContext *s)
00041 {
00042     if (HAVE_NEON) {
00043         s->fft_permute  = ff_fft_permute_neon;
00044         s->fft_calc     = ff_fft_calc_neon;
00045 #if CONFIG_MDCT
00046         s->imdct_calc   = ff_imdct_calc_neon;
00047         s->imdct_half   = ff_imdct_half_neon;
00048         s->mdct_calc    = ff_mdct_calc_neon;
00049         s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE;
00050 #endif
00051     }
00052 }
00053 
00054 #if CONFIG_RDFT
00055 av_cold void ff_rdft_init_arm(RDFTContext *s)
00056 {
00057     if (HAVE_NEON)
00058         s->rdft_calc    = ff_rdft_calc_neon;
00059 }
00060 #endif
00061 
00062 #if CONFIG_DCA_DECODER
00063 av_cold void ff_synth_filter_init_arm(SynthFilterContext *s)
00064 {
00065     if (HAVE_NEON)
00066         s->synth_filter_float = ff_synth_filter_float_neon;
00067 }
00068 #endif
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