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Diffstat (limited to 'src/libfaad/filtbank.h')
-rw-r--r-- | src/libfaad/filtbank.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/libfaad/filtbank.h b/src/libfaad/filtbank.h new file mode 100644 index 000000000..e84e729e0 --- /dev/null +++ b/src/libfaad/filtbank.h @@ -0,0 +1,74 @@ +/* +** 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: filtbank.h,v 1.1 2002/07/14 23:43:01 miguelfreitas Exp $ +**/ + +#ifndef __FILTBANK_H__ +#define __FILTBANK_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "mdct.h" + + +typedef struct +{ + real_t *long_window[2]; + real_t *short_window[2]; +#ifdef LD_DEC + real_t *ld_window[2]; +#endif + + mdct_info mdct256; +#ifdef LD_DEC + mdct_info mdct1024; +#endif + mdct_info mdct2048; +} fb_info; + +void filter_bank_init(fb_info *fb, uint16_t frame_len); +void filter_bank_end(fb_info *fb); + +#ifdef LTP_DEC +void filter_bank_ltp(fb_info *fb, + uint8_t window_sequence, + uint8_t window_shape, + uint8_t window_shape_prev, + real_t *in_data, + real_t *out_mdct, + uint8_t object_type, + uint16_t frame_len); +#endif + +void ifilter_bank(fb_info *fb, + uint8_t window_sequence, + uint8_t window_shape, + uint8_t window_shape_prev, + real_t *freq_in, + real_t *time_buff, + real_t *time_out, + uint8_t object_type, + uint16_t frame_len); + +#ifdef __cplusplus +} +#endif +#endif |