Getting video to work with pico projector

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1

Can someone give me some resources on how to send video frames from
the beagle board to the pico projector to display an image sequence.
Also, is it possible to modify the frame rate of the video as you are
showing it and how would this be done?

Thanks

2

Brendan Duncan schrieb:

Can someone give me some resources on how to send video frames from
the beagle board to the pico projector to display an image sequence.
Also, is it possible to modify the frame rate of the video as you are
showing it and how would this be done?

Thanks

Brendan, you can just use libdirectfb to get a sequence of images to the projector. That's the way I've done but not for video, because a have a well defined sequence of images and nothing else. The framerate depends on other factors for me, not as for a video where you have to have a constant framerate.

Sascha

3

Thanks. This is helpful. I also got a little bit more info on using
different modes to control display images.

I see now that you have to send RGB info over the mini HDMI and that
the only way that you can control the internal color sequencing is by
using the special modes. To get a high framerate you have to pack the
R and G channels differently, but it will only result in monochrome.
You can also use a faster framerate with 4-bit colors and packing the
upper and lower 4 bits differently.

I found this info at http://focus.ti.com/lit/an/dlpa021/dlpa021.pdf.