Tizen 2.1 base

1 files changed, 193 insertions, 0 deletions

diff --git a/opencore/codecs_v2/audio/gsm_amr/amr_nb/common/src/shr_r.cpp b/opencore/codecs_v2/audio/gsm_amr/amr_nb/common/src/shr_r.cpp
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+++ b/opencore/codecs_v2/audio/gsm_amr/amr_nb/common/src/shr_r.cpp
@@ -0,0 +1,193 @@
+/* ------------------------------------------------------------------
+ * 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: shr_r.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    var1 = 16 bit short signed integer (Word16) whose value falls in
+           the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+    var2 = 16 bit short signed integer (Word16) whose value falls in
+           the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    var_out = shifted input w/ rounding (Word16)
+
+ Pointers and Buffers Modified:
+    None
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function arithmetically shifts the 16 bit input var1 right var2 positions
+ with rounding. If var2 is negative, arithmetically shift var1 left by
+ -var2 with rounding. Saturate the result in case of underflows or
+ overflows.
+
+    - If var2 is greater than zero :
+        if (sub(shl(shr(var1,var2),1),shr(var1,sub(var2,1))))
+        is equal to zero
+        then
+            shr_r(var1,var2) = shr(var1,var2)
+        else
+            shr_r(var1,var2) = add(shr(var1,var2),1)
+    - If var2 is less than or equal to zero :
+        shr_r(var1,var2) = shr(var1,var2).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 shr_r (Word16 var1, Word16 var2)
+{
+    Word16 var_out;
+
+    if (var2 > 15)
+    {
+        var_out = 0;
+    }
+    else
+    {
+        var_out = shr (var1, var2);
+#if (WMOPS)
+        multiCounter[currCounter].shr--;
+#endif
+
+        if (var2 > 0)
+        {
+            if ((var1 & ((Word16) 1 << (var2 - 1))) != 0)
+            {
+                var_out++;
+            }
+        }
+    }
+#if (WMOPS)
+    multiCounter[currCounter].shr_r++;
+#endif
+    return (var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+OSCL_EXPORT_REF Word16 shr_r(register Word16 var1, register Word16 var2, Flag *pOverflow)
+{
+    /*----------------------------------------------------------------------------
+    ; Define all local variables
+    ----------------------------------------------------------------------------*/
+    Word16 var_out;
+
+    /*----------------------------------------------------------------------------
+    ; Function body here
+    ----------------------------------------------------------------------------*/
+    if (var2 > 15)
+    {
+        var_out = 0;
+    }
+    else
+    {
+        var_out = shr(var1, var2, pOverflow);
+        if (var2 > 0)
+        {
+            if ((var1 & ((Word16) 1 << (var2 - 1))) != 0)
+            {
+                var_out++;
+            }
+        }
+    }
+
+    /*----------------------------------------------------------------------------
+    ; Return nothing or data or data pointer
+    ----------------------------------------------------------------------------*/
+    return (var_out);
+}