00001 /* 00002 * Fast Fourier Transform include file 00003 * 00004 * Copyright (c) 2000 Mark Taylor 00005 * 00006 * This library 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 of the License, or (at your option) any later version. 00010 * 00011 * This library 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 * Library General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with this library; if not, write to the 00018 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 00019 * Boston, MA 02111-1307, USA. 00020 */ 00021 00022 #ifndef LAME_FFT_H 00023 #define LAME_FFT_H 00024 00025 void fft_long(lame_internal_flags const *const gfc, FLOAT x_real[BLKSIZE], 00026 int chn, const sample_t * data[2]); 00027 00028 void fft_short(lame_internal_flags const *const gfc, FLOAT x_real[3][BLKSIZE_s], 00029 int chn, const sample_t * data[2]); 00030 00031 void init_fft(lame_internal_flags * const gfc); 00032 00033 #endif 00034 00035 /* End of fft.h */