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/**
*
* File Name: armVCM4P10_SADQuar.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 SAD of pSrc with average of two Ref blocks
*
*/
#include "omxtypes.h"
#include "armOMX.h"
#include "armVC.h"
#include "armCOMM.h"
/**
* Function: armVCM4P10_SADQuar
*
* Description:
* This function calculates the SAD between one block (pSrc) and the
* average of the other two (pSrcRef0 and pSrcRef1)
*
* Remarks:
*
* [in] pSrc Pointer to the original block
* [in] pSrcRef0 Pointer to reference block 0
* [in] pSrcRef1 Pointer to reference block 1
* [in] iSrcStep Step of the original block buffer
* [in] iRefStep0 Step of reference block 0
* [in] iRefStep1 Step of reference block 1
* [in] iHeight Height of the block
* [in] iWidth Width of the block
* [out] pDstSAD Pointer of result SAD
*
* Return Value:
* Standard OMXResult value.
*
*/
OMXResult armVCM4P10_SADQuar(
const OMX_U8* pSrc,
const OMX_U8* pSrcRef0,
const OMX_U8* pSrcRef1,
OMX_U32 iSrcStep,
OMX_U32 iRefStep0,
OMX_U32 iRefStep1,
OMX_U32* pDstSAD,
OMX_U32 iHeight,
OMX_U32 iWidth
)
{
OMX_INT x, y;
OMX_S32 SAD = 0;
/* check for argument error */
armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(pSrcRef0 == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(pSrcRef1 == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(pDstSAD == NULL, OMX_Sts_BadArgErr)
for (y = 0; y < iHeight; y++)
{
for (x = 0; x < iWidth; x++)
{
SAD += armAbs(pSrc [y * iSrcStep + x] - ((
pSrcRef0 [y * iRefStep0 + x] +
pSrcRef1 [y * iRefStep1 + x] + 1) >> 1));
}
}
*pDstSAD = SAD;
return OMX_Sts_NoErr;
}
/*****************************************************************************
* END OF FILE
*****************************************************************************/
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