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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_InterpolateHalfHor_Luma.c b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_InterpolateHalfHor_Luma.c
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+++ b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_InterpolateHalfHor_Luma.c
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+/**
+ * 
+ * File Name:  omxVCM4P10_InterpolateHalfHor_Luma.c
+ * OpenMAX DL: v1.0.2
+ * Revision:   9641
+ * Date:       Thursday, February 7, 2008
+ * 
+ * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
+ * 
+ * 
+ * Description:
+ * This function will calculate Half horizontal luma interpolation
+ * 
+ */
+
+#include "omxtypes.h"
+#include "armOMX.h"
+#include "omxVC.h"
+
+#include "armCOMM.h"
+#include "armVC.h"
+
+/**
+ * Function:  omxVCM4P10_InterpolateHalfHor_Luma   (6.3.5.5.1)
+ *
+ * Description:
+ * This function performs interpolation for two horizontal 1/2-pel positions 
+ * (-1/2,0) and (1/2, 0) - around a full-pel position. 
+ *
+ * Input Arguments:
+ *   
+ *   pSrc - Pointer to the top-left corner of the block used to interpolate in 
+ *            the reconstruction frame plane. 
+ *   iSrcStep - Step of the source buffer. 
+ *   iDstStep - Step of the destination(interpolation) buffer; must be a 
+ *            multiple of iWidth. 
+ *   iWidth - Width of the current block; must be equal to either 4, 8, or 16 
+ *   iHeight - Height of the current block; must be equal to 4, 8, or 16 
+ *
+ * Output Arguments:
+ *   
+ *   pDstLeft -Pointer to the interpolation buffer of the left -pel position 
+ *            (-1/2, 0) 
+ *                 If iWidth==4,  4-byte alignment required. 
+ *                 If iWidth==8,  8-byte alignment required. 
+ *                 If iWidth==16, 16-byte alignment required. 
+ *   pDstRight -Pointer to the interpolation buffer of the right -pel 
+ *            position (1/2, 0) 
+ *                 If iWidth==4,  4-byte alignment required. 
+ *                 If iWidth==8,  8-byte alignment required. 
+ *                 If iWidth==16, 16-byte alignment required. 
+ *
+ * Return Value:
+ *    
+ *    OMX_Sts_NoErr - no error 
+ *    OMX_Sts_BadArgErr - bad arguments; returned if any of the following 
+ *              conditions are true: 
+ *    -    at least one of the following pointers is NULL: 
+ *             pSrc, pDstLeft, or pDstRight 
+ *    -    iWidth or iHeight have values other than 4, 8, or 16 
+ *    -    iWidth==4 but pDstLeft and/or pDstRight is/are not aligned on a 4-byte boundary 
+ *    -    iWidth==8 but pDstLeft and/or pDstRight is/are not aligned on a 8-byte boundary 
+ *    -    iWidth==16 but pDstLeft and/or pDstRight is/are not aligned on a 16-byte boundary 
+ *    -    any alignment restrictions are violated 
+ *
+ */
+
+OMXResult omxVCM4P10_InterpolateHalfHor_Luma(
+        const OMX_U8*     pSrc, 
+        OMX_U32     iSrcStep, 
+        OMX_U8*     pDstLeft, 
+        OMX_U8*     pDstRight, 
+        OMX_U32     iDstStep, 
+        OMX_U32     iWidth, 
+        OMX_U32     iHeight
+)
+{
+    OMXResult   RetValue;    
+
+    /* check for argument error */
+    armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr)
+    armRetArgErrIf(pDstLeft == NULL, OMX_Sts_BadArgErr)
+    armRetArgErrIf(pDstRight == NULL, OMX_Sts_BadArgErr)
+    armRetArgErrIf((iWidth == 4) && 
+                   armNot4ByteAligned(pDstLeft) &&
+                   armNot4ByteAligned(pDstRight), OMX_Sts_BadArgErr)
+    armRetArgErrIf((iWidth == 8) && 
+                   armNot8ByteAligned(pDstLeft) &&
+                   armNot8ByteAligned(pDstRight), OMX_Sts_BadArgErr)
+    armRetArgErrIf((iWidth == 16) && 
+                   armNot16ByteAligned(pDstLeft) &&
+                   armNot16ByteAligned(pDstRight), OMX_Sts_BadArgErr)
+
+    armRetArgErrIf((iHeight != 16) && (iHeight != 8)&& (iHeight != 4), OMX_Sts_BadArgErr)
+	armRetArgErrIf((iWidth != 16) && (iWidth != 8)&& (iWidth != 4), OMX_Sts_BadArgErr)
+
+    RetValue = armVCM4P10_InterpolateHalfHor_Luma (
+        pSrc - 1,     
+        iSrcStep, 
+        pDstLeft,     
+        iDstStep, 
+        iWidth,   
+        iHeight);
+
+    if (RetValue != OMX_Sts_NoErr)
+    {
+        return RetValue;
+    }
+
+    RetValue = armVCM4P10_InterpolateHalfHor_Luma (
+        pSrc,     
+        iSrcStep, 
+        pDstRight,     
+        iDstStep, 
+        iWidth,   
+        iHeight);
+
+    return RetValue;
+}
+
+/*****************************************************************************
+ *                              END OF FILE
+ *****************************************************************************/
+