Not included in version 1.5
		     ===========================

		    (not changed from version 1.4)
				   
Encoder:

 * 	A smart way to turn on and off PB-frames depending on how
	difficult the sequence is.


Decoder:

 *	Support for variable framerate
	Right now it decodes sequences with variable framerate
	perfectly ok, but the display framerate and number of frames
	written to disk is constant. This is not too difficult to 
	change.

*	When decoding PB-frames with display, the delay between the
	display of the B and the P-frame is not the same as the delay
	between the P-frame and the next B-frame. This should be
	fixed.

*	Support for other display depths than 8 bits (256 colours)
	should be added.