The first functional video MPEG1 decoder. The decoder still opens a window to show the video. This is not optimised a...

Original commit message from CVS:
The first functional video MPEG1 decoder. The decoder still opens a window
to show the video. This is not optimised at all. Some glitches and
crashes due to bugs in mp1videoparse.c. I need to queue incomplete
slices in mp1videoparse before sending them to the decoder.
use test/mp1parse on your favorite video to test. No audio/video sync,
no QoS at all.