Method to Split YUV Planes

gistfile1.cpp

void SplitYUVPlanes(int width, int height, unsigned char *data, int size, unsigned char *yuvInput[3])
{
	// live input *data is YUV444 Packed
	// Conversion from 444 Packed -> 444 Planar
	int index = 0;
	int srcStride = size;
	
	// need to flip image from bottom-up to top-down
	int revheight = height - 1; 
	
	unsigned char* pLuma = yuvInput[0];
	unsigned char* pChromaU = yuvInput[1];
	unsigned char* pChromaV = yuvInput[2];
	
	for (int i = 0; i < height; ++i)
	{
	  // read bottom line first
		int line = (revheight - i) * srcStride;

		for (int j = 0; j < width; ++j)
		{
			int idx = line + (j * 4);
			pLuma[index]	= data[idx + 2]; //Y
			pChromaV[index] = data[idx + 1]; //V
			pChromaU[index] = data[idx + 0]; //U
			index++;
		}
	}
}

Currently this method is needs optimization if anyone is willing to help please do :)
The input pointer *data contains the data that needs to be split into different arrays and put in yuvInput