ref: c0ae72652fc9619e8b1e8f365ab977614179779a
dir: /libfaad/sbr_hfadj.h/
/*
** 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 [email protected].
**
** $Id: sbr_hfadj.h,v 1.8 2003/12/17 14:43:16 menno Exp $
**/
#ifndef __SBR_HFADJ_H__
#define __SBR_HFADJ_H__
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
real_t Q_mapped[64][5];
uint8_t S_index_mapped[64][5];
uint8_t S_mapped[64][5];
real_t G_lim_boost[5][64];
real_t Q_M_lim_boost[5][64];
real_t S_M_boost[5][64];
} sbr_hfadj_info;
void hf_adjustment(sbr_info *sbr, qmf_t Xsbr[MAX_NTSRHFG][64]
#ifdef SBR_LOW_POWER
,real_t *deg
#endif
,uint8_t ch);
static void map_envelope_data(sbr_info *sbr, sbr_hfadj_info *adj, uint8_t ch);
static void map_noise_data(sbr_info *sbr, sbr_hfadj_info *adj, uint8_t ch);
static void map_sinusoids(sbr_info *sbr, sbr_hfadj_info *adj, uint8_t ch);
static void estimate_current_envelope(sbr_info *sbr, sbr_hfadj_info *adj,
qmf_t Xsbr[MAX_NTSRHFG][64], uint8_t ch);
static void additional_component_levels(sbr_info *sbr, sbr_hfadj_info *adj, uint8_t ch);
static void calculate_gain(sbr_info *sbr, sbr_hfadj_info *adj, uint8_t ch);
#ifdef SBR_LOW_POWER
static void calc_gain_groups(sbr_info *sbr, sbr_hfadj_info *adj, real_t *deg, uint8_t ch);
static void aliasing_reduction(sbr_info *sbr, sbr_hfadj_info *adj, real_t *deg, uint8_t ch);
#endif
static void hf_assembly(sbr_info *sbr, sbr_hfadj_info *adj, qmf_t Xsbr[MAX_NTSRHFG][64], uint8_t ch);
#ifdef __cplusplus
}
#endif
#endif