use average downsampling fistly then general downsampling when dst resolution > 1/4 source resolution and dst resolution <1/2 source resolution

Karina committed 10 years ago

Commit 7c0ca2f1 parent 6a86e371 file · +1 −1Browse files

Showing the changes to codec/processing/src (1 of 1 file). Show all

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codec/processing/src/downsample/downsample.cpp+1−1

@@ -220,7 +220,7 @@ EResult CDownsampling::Process (int32_t iType, SPixMap* pSrcPixMap, SPixMap* pDs · 219 unmodified lines
220	DownsampleHalfAverage ((uint8_t*)pDstPixMap->pPixel[2], pDstPixMap->iStride[2],	220	DownsampleHalfAverage ((uint8_t*)pDstPixMap->pPixel[2], pDstPixMap->iStride[2],
221	(uint8_t*)pSrcV, iSrcStrideV, iSrcWidthUV, iSrcHeightUV);	221	(uint8_t*)pSrcV, iSrcStrideV, iSrcWidthUV, iSrcHeightUV);
222	break;	222	break;
223	} else if (((iHalfSrcWidth >> 1) >= iDstWidthY) && ((iHalfSrcHeight >> 1) >= iDstHeightY)) {	223	} else if ((iHalfSrcWidth > iDstWidthY) && (iHalfSrcHeight > iDstHeightY)){
224	// use half average functions	224	// use half average functions
225	iDstStrideY = WELS_ALIGN (iHalfSrcWidth, 32);	225	iDstStrideY = WELS_ALIGN (iHalfSrcWidth, 32);
226	iDstStrideU = WELS_ALIGN (iHalfSrcWidth >> 1, 32);	226	iDstStrideU = WELS_ALIGN (iHalfSrcWidth >> 1, 32);