[Coco] CoCo video?

[Roger Taylor]

I've brought this up before but I forgot what conclusions we came 
to.  Could the CoCo play a preformatted full-length movie from HD if each 
frame was a raw 32000 bytes (320x200 16-color image per frame) @ 24 fps or 
less?

I'm not sure how these new IDE interfaces work, but if a DMA mode is in 
there for pushing the sectors into CoCo RAM then perhaps we could tap into 
that memory with the video pointer to show the frames quickly.

As you can see from the Projector-3 sample renderings, 320x200x16-color 
dithered images look quite well at about 4 feet or so back from the monitor.

As for the audio track, I've used the FIRQ interrupt to play simultaneous 
music in a few of my games and with the right buffering, I think the audio 
track (mono, 8-bit?) could be pulled off.

Correct me if I'm way wrong here but a 90 minute movie @ 24fps would be 
90x60x24 for 129600 frames of 32000 bytes each, for a total of ~3.86gigs?

As crazy as it seems, and as impossible as it is to get that size of a 
movie into a CoCo HD... if the right PC software were made to encode such a 
raw movie just for the CoCo, this could be pulled off, even if the results 
are sloppy.

If anything, this could be used as a demo at a CoCo Fest.

-- 
Roger Taylor