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

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This commit is contained in:
Karina 2016-06-17 10:30:47 +08:00
parent 6a86e37849
commit 7c0ca2fc14
1 changed files with 1 additions and 1 deletions
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codec/processing/src/downsample/downsample.cpp
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@ -220,7 +220,7 @@ EResult CDownsampling::Process (int32_t iType, SPixMap* pSrcPixMap, SPixMap* pDs
DownsampleHalfAverage ((uint8_t*)pDstPixMap->pPixel[2], pDstPixMap->iStride[2],
(uint8_t*)pSrcV, iSrcStrideV, iSrcWidthUV, iSrcHeightUV);
break;
} else if (((iHalfSrcWidth >> 1) >= iDstWidthY) && ((iHalfSrcHeight >> 1) >= iDstHeightY)) {
} else if ((iHalfSrcWidth > iDstWidthY) && (iHalfSrcHeight > iDstHeightY)){
// use half average functions
iDstStrideY = WELS_ALIGN (iHalfSrcWidth, 32);
iDstStrideU = WELS_ALIGN (iHalfSrcWidth >> 1, 32);