YUV格式和RGB格式互转

对于R8G8B8A8格式的颜色，能够经过下面公式转换为YUV(I420)格式。php unsigned char Y = static_cast<unsigned char>((65.738*r + 129.057*g + 25.064*b)/256 + 16);算法 unsigned char U = static_cast<unsigned char>((-37.945*r - 74.494*

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