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/**
*
* File Name: armVCCOMM_SAD.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 for NxM blocks
*
*/
#include "omxtypes.h"
#include "armOMX.h"
#include "omxVC.h"
#include "armCOMM.h"
/**
* Function: armVCCOMM_SAD
*
* Description:
* This function calculate the SAD for NxM blocks.
*
* Remarks:
*
* [in] pSrcOrg Pointer to the original block
* [in] iStepOrg Step of the original block buffer
* [in] pSrcRef Pointer to the reference block
* [in] iStepRef Step of the reference block buffer
* [in] iHeight Height of the block
* [in] iWidth Width of the block
* [out] pDstSAD Pointer of result SAD
*
* Return Value:
* Standard OMXResult value.
*
*/
OMXResult armVCCOMM_SAD(
const OMX_U8* pSrcOrg,
OMX_U32 iStepOrg,
const OMX_U8* pSrcRef,
OMX_U32 iStepRef,
OMX_S32* pDstSAD,
OMX_U32 iHeight,
OMX_U32 iWidth
)
{
OMX_INT x, y;
/* check for argument error */
armRetArgErrIf(pSrcOrg == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(pSrcRef == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(pDstSAD == NULL, OMX_Sts_BadArgErr)
*pDstSAD = 0;
for (y = 0; y < iHeight; y++)
{
for (x = 0; x < iWidth; x++)
{
*pDstSAD += armAbs(pSrcOrg [(y * iStepOrg) + x] -
pSrcRef [(y * iStepRef) + x]);
}
}
return OMX_Sts_NoErr;
}
/*****************************************************************************
* END OF FILE
*****************************************************************************/
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