public override Frame Process(Frame sourceFrame)
{
var width = sourceFrame.Width;
var height = sourceFrame.Height;
var rSourceIndex = 0;
var gSourceIndex = rSourceIndex + 1;
var bSourceIndex = rSourceIndex + 2;
var destFrame = new YuvFrame(width, height, PixelFormatType.PIX_FMT_YUV444);
for (int i = 0, k = 0; i < height; i++)
{
for (var j = 0; j < width; j++)
{
destFrame[0][k] = (byte)((RGB2_YUV_YR[sourceFrame.Data[rSourceIndex]] + RGB2_YUV_YG[sourceFrame.Data[gSourceIndex]] + RGB2_YUV_YB[sourceFrame.Data[bSourceIndex]] + 1048576) >> 16);
destFrame[1][k] = (byte)((-RGB2_YUV_UR[sourceFrame.Data[rSourceIndex]] - RGB2_YUV_UG[sourceFrame.Data[gSourceIndex]] + RGB2_YUV_UBVR[sourceFrame.Data[bSourceIndex]] + 8388608) >> 16);
destFrame[2][k] = (byte)((RGB2_YUV_UBVR[sourceFrame.Data[rSourceIndex]] - RGB2_YUV_VG[sourceFrame.Data[gSourceIndex]] - RGB2_YUV_VB[sourceFrame.Data[bSourceIndex]] + 8388608) >> 16);
rSourceIndex += 3;
gSourceIndex += 3;
bSourceIndex += 3;
k++;
}
}
return destFrame;
}
public override Frame Process(Frame sourceFrame)
{
var width = sourceFrame.Width;
var height = sourceFrame.Height;
var destIntermediateFrame = base.Process(sourceFrame);
var destFrame = new YuvFrame(width, height, PixelFormatType.PIX_FMT_YUV420);
destFrame[0].Copy(destIntermediateFrame[0]);
// For U
var uDestinationIndex1 = 0;
var uDestinationIndex2 = uDestinationIndex1 + 1;
var uDestinationIndex3 = uDestinationIndex1 + width;
var uDestinationIndex4 = uDestinationIndex3 + 1;
// For V
var vDestinationIndex1 = 0;
var vDestinationIndex2 = vDestinationIndex1 + 1;
var vDestinationIndex3 = vDestinationIndex1 + width;
var vDestinationIndex4 = vDestinationIndex3 + 1;
for (int i = 0, k = 0; i < height; i += 2)
{
for (var j = 0; j < width; j += 2)
{
destFrame[1][k] = (byte)((destIntermediateFrame[1][uDestinationIndex1] +
destIntermediateFrame[1][uDestinationIndex2] +
destIntermediateFrame[1][uDestinationIndex3] +
destIntermediateFrame[1][uDestinationIndex4]) >> 2);
destFrame[2][k] = (byte)((destIntermediateFrame[2][vDestinationIndex1] +
destIntermediateFrame[2][vDestinationIndex2] +
destIntermediateFrame[2][vDestinationIndex3] +
destIntermediateFrame[2][vDestinationIndex4]) >> 2);
uDestinationIndex1 += 2;
uDestinationIndex2 += 2;
uDestinationIndex3 += 2;
uDestinationIndex4 += 2;
vDestinationIndex1 += 2;
vDestinationIndex2 += 2;
vDestinationIndex3 += 2;
vDestinationIndex4 += 2;
k++;
}
uDestinationIndex1 += width;
uDestinationIndex2 += width;
uDestinationIndex3 += width;
uDestinationIndex4 += width;
vDestinationIndex1 += width;
vDestinationIndex2 += width;
vDestinationIndex3 += width;
vDestinationIndex4 += width;
}
return destFrame;
}
