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Diffstat (limited to 'src/libfaad/mdct.h')
-rw-r--r-- | src/libfaad/mdct.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/libfaad/mdct.h b/src/libfaad/mdct.h new file mode 100644 index 000000000..42b80eced --- /dev/null +++ b/src/libfaad/mdct.h @@ -0,0 +1,56 @@ +/* +** 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 1.1 2002/07/14 23:43:01 miguelfreitas Exp $ +**/ + +#ifndef __MDCT_H__ +#define __MDCT_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +#include <fftw.h> + +typedef struct { + real_t sin; + real_t cos; +} faad_sincos; + +typedef struct { + fftw_complex *Z1; + fftw_complex *Z2; + faad_sincos *sincos; + fftw_plan plan_backward; +#ifdef LTP_DEC + fftw_plan plan_forward; +#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 |