1 files changed, 58 insertions, 0 deletions
diff --git a/src/libfaad/is.h b/src/libfaad/is.h
new file mode 100644
index 000000000..3b311b8d8
--- /dev/null
+++ b/src/libfaad/is.h
@@ -0,0 +1,58 @@
+/*
+** 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: is.h,v 1.1 2002/07/14 23:43:01 miguelfreitas Exp $
+**/
+
+#ifndef __IS_H__
+#define __IS_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "syntax.h"
+
+void is_decode(ic_stream *ics, ic_stream *icsr, real_t *l_spec, real_t *r_spec,
+               uint16_t frame_len);
+
+static INLINE int8_t is_intensity(ic_stream *ics, uint8_t group, uint8_t sfb)
+{
+    switch (ics->sfb_cb[group][sfb])
+    {
+    case INTENSITY_HCB:
+        return 1;
+    case INTENSITY_HCB2:
+        return -1;
+    default:
+        return 0;
+    }
+}
+
+static INLINE int8_t invert_intensity(ic_stream *ics, uint8_t group, uint8_t sfb)
+{
+    if (ics->ms_mask_present == 1)
+        return (1-2*ics->ms_used[group][sfb]);
+    return 1;
+}
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif