Initial check in of AMR (NB and WB) decoders based on PV source code.

1 files changed, 180 insertions, 0 deletions

diff --git a/media/libstagefright/codecs/amrnb/common/src/grid_tbl.cpp b/media/libstagefright/codecs/amrnb/common/src/grid_tbl.cpp
new file mode 100644
index 0000000..cd81566
--- /dev/null
+++ b/media/libstagefright/codecs/amrnb/common/src/grid_tbl.cpp
@@ -0,0 +1,180 @@
+/* ------------------------------------------------------------------
+ * 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: /audio/gsm_amr/c/src/grid_tbl.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Added #ifdef __cplusplus and removed "extern" from table
+              definition.
+
+ Description: Put "extern" back.
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the declaration for grid_tbl[] used by the az_lsp()
+ function.
+
+ //  Table for az_lsp()
+ //
+ // grid[0] = 1.0;
+ // grid[grid_points+1] = -1.0;
+ // for (i = 1; i < grid_points; i++)
+ //   grid[i] = cos((6.283185307*i)/(2.0*grid_points));
+ //
+ //
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; MACROS
+    ; [Define module specific macros here]
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; [Include all pre-processor statements here. Include conditional
+    ; compile variables also.]
+    ----------------------------------------------------------------------------*/
+#define grid_points 60
+
+    /*----------------------------------------------------------------------------
+    ; LOCAL FUNCTION DEFINITIONS
+    ; [List function prototypes here]
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; LOCAL VARIABLE DEFINITIONS
+    ; [Variable declaration - defined here and used outside this module]
+    ----------------------------------------------------------------------------*/
+    extern const Word16 grid[grid_points + 1] =
+    {
+        32760, 32723, 32588, 32364, 32051, 31651,
+        31164, 30591, 29935, 29196, 28377, 27481,
+        26509, 25465, 24351, 23170, 21926, 20621,
+        19260, 17846, 16384, 14876, 13327, 11743,
+        10125, 8480, 6812, 5126, 3425, 1714,
+        0, -1714, -3425, -5126, -6812, -8480,
+        -10125, -11743, -13327, -14876, -16384, -17846,
+        -19260, -20621, -21926, -23170, -24351, -25465,
+        -26509, -27481, -28377, -29196, -29935, -30591,
+        -31164, -31651, -32051, -32364, -32588, -32723,
+        -32760
+    };
+
+    /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    None
+
+ Outputs:
+    None
+
+ Returns:
+    None
+
+ Global Variables Used:
+    None
+
+ Local Variables Needed:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] grid.tab,  UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ RESOURCES USED [optional]
+
+ When the code is written for a specific target processor the
+ the resources used should be documented below.
+
+ HEAP MEMORY USED: x bytes
+
+ STACK MEMORY USED: x bytes
+
+ CLOCK CYCLES: (cycle count equation for this function) + (variable
+                used to represent cycle count for each subroutine
+                called)
+     where: (cycle count variable) = cycle count for [subroutine
+                                     name]
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+