ref: 99faf1ec4a47c5362a6bde552d6097166e2fda16
dir: /processing/src/scenechangedetection/SceneChangeDetectionCommon.cpp/
/*!
* \copy
* Copyright (c) 2013, Cisco Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "SceneChangeDetectionCommon.h"
#include "../common/cpu.h"
WELSVP_NAMESPACE_BEGIN
int32_t WelsSampleSad8x8_c( uint8_t * pSrcY, int32_t iSrcStrideY, uint8_t * pRefY, int32_t iRefStrideY )
{
int32_t iSadSum = 0;
uint8_t* pSrcA = pSrcY;
uint8_t* pSrcB = pRefY;
for (int32_t i = 0; i < 8; i++ )
{
iSadSum += WELS_ABS( ( pSrcA[0] - pSrcB[0] ) );
iSadSum += WELS_ABS( ( pSrcA[1] - pSrcB[1] ) );
iSadSum += WELS_ABS( ( pSrcA[2] - pSrcB[2] ) );
iSadSum += WELS_ABS( ( pSrcA[3] - pSrcB[3] ) );
iSadSum += WELS_ABS( ( pSrcA[4] - pSrcB[4] ) );
iSadSum += WELS_ABS( ( pSrcA[5] - pSrcB[5] ) );
iSadSum += WELS_ABS( ( pSrcA[6] - pSrcB[6] ) );
iSadSum += WELS_ABS( ( pSrcA[7] - pSrcB[7] ) );
pSrcA += iSrcStrideY;
pSrcB += iRefStrideY;
}
return iSadSum;
}
WELSVP_NAMESPACE_END