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libavcodec/synth_filter.h

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00001 /*
00002  * copyright (c) 2008 Michael Niedermayer <michaelni@gmx.at>
00003  *
00004  * This file is part of FFmpeg.
00005  *
00006  * FFmpeg 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  * FFmpeg 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 FFmpeg; if not, write to the Free Software
00018  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00019  */
00020 
00021 #ifndef AVCODEC_SYNTH_FILTER_H
00022 #define AVCODEC_SYNTH_FILTER_H
00023 
00024 #include "fft.h"
00025 
00026 typedef struct SynthFilterContext {
00027     void (*synth_filter_float)(FFTContext *imdct,
00028                                float *synth_buf_ptr, int *synth_buf_offset,
00029                                float synth_buf2[32], const float window[512],
00030                                float out[32], const float in[32],
00031                                float scale, float bias);
00032 } SynthFilterContext;
00033 
00034 void ff_synth_filter_init(SynthFilterContext *c);
00035 void ff_synth_filter_init_arm(SynthFilterContext *c);
00036 
00037 #endif /* AVCODEC_SYNTH_FILTER_H */

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