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/AliOS-Things-master/components/SDL2/src/image/external/libwebp-1.0.2/examples/
A Danim_util.c741 const int kAlphaChannel = kNumChannels - 1; in GetDiffAndPSNR() local
749 const int alpha1 = rgba1[offset + kAlphaChannel]; in GetDiffAndPSNR()
750 const int alpha2 = rgba2[offset + kAlphaChannel]; in GetDiffAndPSNR()
753 for (k = 0; k < kAlphaChannel; ++k) { in GetDiffAndPSNR()
758 for (k = 0; k < kAlphaChannel; ++k) { in GetDiffAndPSNR()

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