1 files changed, 56 insertions, 0 deletions
diff --git a/src/libfaad/sbr_hfgen.h b/src/libfaad/sbr_hfgen.h
new file mode 100644
index 000000000..d398e26ef
--- /dev/null
+++ b/src/libfaad/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 2003/12/30 02:00:11 miguelfreitas Exp $
+**/
+
+#ifndef __SBR_HFGEN_H__
+#define __SBR_HFGEN_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void hf_generation(sbr_info *sbr, const qmf_t Xlow[MAX_NTSRHFG][32],
+                   qmf_t Xhigh[MAX_NTSRHFG][64]
+#ifdef SBR_LOW_POWER
+                   ,real_t *deg
+#endif
+                   ,uint8_t ch);
+
+static void calc_prediction_coef(sbr_info *sbr, const qmf_t Xlow[MAX_NTSRHFG][32],
+                                 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
+