下一步尝试:) 我认为您的uv缓冲区不是交错的.看起来U值先出现，然后是V值数组.将行更改为

Next try :) I think you're uv buffer is not interleaved. It looks like the U values come first and then the array of V values. Changing the lines to

unsigned int voffset = YUV_HEIGHT * YUV_WIDTH / 2;
float U = lookupTableU [uvBuffer [ y * (YUV_WIDTH / 2) + x/2] ]; 
float V = lookupTableV [uvBuffer [ voffset + y * (YUV_WIDTH / 2) + x/2] ];

可能指示是否确实如此.

might indicate if this is really the case.