Things i want to do when i find time:

- Implement a 'fast lookup-table' for huffman decoding.

- speedup.

- Make a "small memory mode". This to extract the 
  high resolutions even if you have not enough 
  memory.

- Include an overskip mode. For extracting the
  Base/16, Base/4 and Base picture you have
  X*Y Luma-image and two X/2*Y/2 Chroma-Image, which
  you have to interpolate. For Base/16 and Base/4 you
  could use the Chroma-Images of the next higher
  resolution instead of interpolating.

