1 files changed, 140 insertions, 0 deletions
diff --git a/opencore/codecs_v2/audio/gsm_amr/amr_nb/common/include/norm_s.h b/opencore/codecs_v2/audio/gsm_amr/amr_nb/common/include/norm_s.h
new file mode 100644
index 0000000..955903a
--- /dev/null
+++ b/opencore/codecs_v2/audio/gsm_amr/amr_nb/common/include/norm_s.h
@@ -0,0 +1,140 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+    3GPP TS 26.073
+    ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+    Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: norm_s.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the norm_s function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef NORM_S_H
+#define NORM_S_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; MACROS
+    ; Define module specific macros here
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+#if !( defined(PV_ARM_V5) || defined(PV_ARM_GCC_V5) )
+
+    /* C EQUIVALENT */
+
+    OSCL_IMPORT_REF Word16 norm_s(Word16 var1);
+
+#elif defined(PV_ARM_V5)
+
+    __inline Word16  norm_s(Word16 var)
+    {
+        register Word32 var_out = 0;
+        Word32 var1 = var << 16;
+
+        __asm
+        {
+            CMP    var1, #0
+            EORNE  var1, var1, var1, LSL #1
+            CLZNE  var_out, var1
+        }
+
+        return ((Word16)var_out);
+    }
+
+#elif defined(PV_ARM_GCC_V5)
+
+    static inline Word16 norm_s(Word16 var1)
+    {
+        register Word32 var_out = 0;
+        register Word32 ra = var1 << 16;
+        if (ra)
+        {
+            ra ^= (ra << 1);
+            asm volatile(
+                "clz %0, %1"
+    : "=r"(var_out)
+                        : "r"(ra)
+                    );
+        }
+        return (var_out);
+    }
+
+#endif
+    /*----------------------------------------------------------------------------
+    ; END
+    ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+