1 files changed, 84 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_Average_4x.c b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_Average_4x.c
new file mode 100644
index 0000000..ac0d523
--- /dev/null
+++ b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_Average_4x.c
@@ -0,0 +1,84 @@
+/**
+ * 
+ * File Name:  omxVCM4P10_Average_4x.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 Average of two 4x4 or 4x8 blocks
+ * 
+ */
+
+#include "omxtypes.h"
+#include "armOMX.h"
+#include "omxVC.h"
+
+#include "armCOMM.h"
+#include "armVC.h"
+
+/**
+ * Function:  omxVCM4P10_Average_4x   (6.3.5.5.3)
+ *
+ * Description:
+ * This function calculates the average of two 4x4, 4x8 blocks.  The result 
+ * is rounded according to (a+b+1)/2. 
+ *
+ * Input Arguments:
+ *   
+ *   pPred0 - Pointer to the top-left corner of reference block 0 
+ *   pPred1 - Pointer to the top-left corner of reference block 1 
+ *   iPredStep0 - Step of reference block 0; must be a multiple of 4. 
+ *   iPredStep1 - Step of reference block 1; must be a multiple of 4. 
+ *   iDstStep - Step of the destination buffer; must be a multiple of 4. 
+ *   iHeight - Height of the blocks; must be either 4 or 8. 
+ *
+ * Output Arguments:
+ *   
+ *   pDstPred - Pointer to the destination buffer. 4-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: 
+ *           pPred0, pPred1, or pDstPred 
+ *    -    pDstPred is not aligned on a 4-byte boundary 
+ *    -    iPredStep0 <= 0 or iPredStep0 is not a multiple of 4 
+ *    -    iPredStep1 <= 0 or iPredStep1 is not a multiple of 4 
+ *    -    iDstStep <= 0 or iDstStep is not a multiple of 4 
+ *    -    iHeight is not equal to either 4 or 8 
+ *
+ */
+ OMXResult omxVCM4P10_Average_4x (
+	 const OMX_U8* 	    pPred0,
+	 const OMX_U8* 	    pPred1,	
+	 OMX_U32		iPredStep0,
+	 OMX_U32		iPredStep1,
+	 OMX_U8*		pDstPred,
+	 OMX_U32		iDstStep, 
+	 OMX_U32		iHeight
+)
+{
+    /* check for argument error */
+    armRetArgErrIf(pPred0 == NULL, OMX_Sts_BadArgErr)
+    armRetArgErrIf(pPred1 == NULL, OMX_Sts_BadArgErr)
+    armRetArgErrIf(pDstPred == NULL, OMX_Sts_BadArgErr)
+    armRetArgErrIf((iHeight != 4) && (iHeight != 8), OMX_Sts_BadArgErr)
+    armRetArgErrIf((iPredStep0 == 0) || (iPredStep0 & 3), OMX_Sts_BadArgErr)
+    armRetArgErrIf((iPredStep1 == 0) || (iPredStep1 & 3), OMX_Sts_BadArgErr)
+    armRetArgErrIf((iDstStep == 0) || (iDstStep & 3), OMX_Sts_BadArgErr)
+    armRetArgErrIf(armNot4ByteAligned(pDstPred), OMX_Sts_BadArgErr)
+
+    return armVCCOMM_Average 
+        (pPred0, pPred1, iPredStep0, iPredStep1, pDstPred, iDstStep, 4, iHeight);
+}
+
+/*****************************************************************************
+ *                              END OF FILE
+ *****************************************************************************/
+