diff options
Diffstat (limited to 'libfaad2/sbr_hfgen.h')
-rw-r--r-- | libfaad2/sbr_hfgen.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/libfaad2/sbr_hfgen.h b/libfaad2/sbr_hfgen.h new file mode 100644 index 0000000000..496475de2e --- /dev/null +++ b/libfaad2/sbr_hfgen.h @@ -0,0 +1,56 @@ +/* +** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding +** Copyright (C) 2003 M. Bakker, Ahead Software AG, http://www.nero.com +** +** 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. +** +** Any non-GPL usage of this software or parts of this software is strictly +** forbidden. +** +** Commercial non-GPL licensing of this software is possible. +** For more info contact Ahead Software through Mpeg4AAClicense@nero.com. +** +** $Id: sbr_hfgen.h,v 1.1 2003/07/29 08:20:13 menno Exp $ +**/ + +#ifndef __SBR_HFGEN_H__ +#define __SBR_HFGEN_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +void hf_generation(sbr_info *sbr, qmf_t *Xlow, + qmf_t *Xhigh +#ifdef SBR_LOW_POWER + ,real_t *deg +#endif + ,uint8_t ch); + +static void calc_prediction_coef(sbr_info *sbr, qmf_t *Xlow, + complex_t *alpha_0, complex_t *alpha_1 +#ifdef SBR_LOW_POWER + , real_t *rxx +#endif + ); +static void calc_aliasing_degree(sbr_info *sbr, real_t *rxx, real_t *deg); +static void calc_chirp_factors(sbr_info *sbr, uint8_t ch); +static void patch_construction(sbr_info *sbr); + +#ifdef __cplusplus +} +#endif +#endif + |