| /* |
| * WMA compatible decoder |
| * Copyright (c) 2002 The FFmpeg Project. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include "types.h" |
| |
| typedef fixed32 FFTSample; |
| |
| typedef struct FFTComplex |
| { |
| fixed32 re, im; |
| } |
| FFTComplex; |
| |
| typedef struct FFTContext |
| { |
| int nbits; |
| int inverse; |
| uint16_t *revtab; |
| FFTComplex *exptab; |
| FFTComplex *exptab1; /* only used by SSE code */ |
| int (*fft_calc)(struct FFTContext *s, FFTComplex *z); |
| } |
| FFTContext; |
| |
| int fft_calc_unscaled(FFTContext *s, FFTComplex *z); |
| int fft_init_global(void); |
| |