ref: 44c7b98d129afe60aac5bf8a688902a67623c27f
dir: /libfaad/mdct.h/
/* ** FAAD - Freeware Advanced Audio Decoder ** Copyright (C) 2002 M. Bakker ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program 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 General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ** ** $Id: mdct.h,v 1.9 2002/07/14 19:11:12 menno Exp $ **/ #ifndef __MDCT_H__ #define __MDCT_H__ #ifdef __cplusplus extern "C" { #endif #ifdef USE_FFTW #include <fftw.h> #else #include "cfft.h" #endif typedef struct { real_t sin; real_t cos; } faad_sincos; #ifndef USE_FFTW typedef struct { real_t re; real_t im; } faad_complex; #endif typedef struct { faad_sincos *sincos; #ifdef USE_FFTW fftw_complex *Z1; fftw_complex *Z2; fftw_plan plan_backward; #ifdef LTP_DEC fftw_plan plan_forward; #endif #else real_t *Z1; faad_complex *Z2; cfft_info cfft; #endif uint16_t N; } mdct_info; void faad_mdct_init(mdct_info *mdct, uint16_t N); void faad_mdct_end(mdct_info *mdct); void faad_imdct(mdct_info *mdct, real_t *X_in, real_t *X_out); void faad_mdct(mdct_info *mdct, real_t *X_in, real_t *X_out); #ifdef __cplusplus } #endif #endif