private Bitmap DecompressPFrame(byte[] bs)
{
int index = 0; // sbytes index
sbyte[] decoded = RunLengthDecode(bs); // data including paddings
// read in vectors
var vectors = new Vector[(int)Math.Ceiling((double)FrameHeight / N) * (int)Math.Ceiling((double)FrameWidth / N)];
for (int i = 0; i < vectors.Length; ++i)
{
vectors[i].x = decoded[index++];
vectors[i].y = decoded[index++];
}
// ycbcr differences
var data = new sbyte[decoded.Length - index];
Array.Copy(decoded, index, data, 0, data.Length);
YCbCrSubSample diffs = SeparateYCbCrFromSbytes(FrameHeight, FrameWidth, data); // pframe diffs
AddDifferencesToMemoryFrame(diffs, vectors);
YCbCr[,] yCbCrs = UpSample(frameMemory);
return(ColorChannel.CreateBitmapFromYCbCr(yCbCrs));
}
private Bitmap DecompressIFrame(byte[] bs)
{
frameMemory = DecodeCompressedBytes(FrameHeight, FrameWidth, bs);
YCbCr[,] yCbCrs = UpSample(frameMemory);
return(ColorChannel.CreateBitmapFromYCbCr(yCbCrs));
}