1 files changed, 74 insertions, 0 deletions
diff --git a/libfaad2/sbr_hfadj.h b/libfaad2/sbr_hfadj.h
new file mode 100644
index 0000000000..ad3ee29f66
--- /dev/null
+++ b/libfaad2/sbr_hfadj.h
@@ -0,0 +1,74 @@
+/*
+** 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_hfadj.h,v 1.1 2003/07/29 08:20:13 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
+#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,
+                                      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, uint8_t ch);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+