1 /* 2 * Fast Fourier Transform include file 3 * 4 * Copyright (c) 2000 Mark Taylor 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public 17 * License along with this library; if not, write to the 18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 19 * Boston, MA 02111-1307, USA. 20 */ 21 22 #ifndef LAME_FFT_H 23 #define LAME_FFT_H 24 25 #include "encoder.h" 26 27 void fft_long(lame_internal_flags* gfc, FLOAT x_real[BLKSIZE], 28 int chn, const sample_t *data[2] ); 29 30 void fft_short(lame_internal_flags* gfc, FLOAT x_real[3][BLKSIZE_s], 31 int chn, const sample_t *data[2] ); 32 33 void init_fft(lame_internal_flags* gfc ); 34 35 #endif 36 37 /* End of fft.h */ 38