Question about framegrabbing/video effect chains ..
sandsmark at samfundet.no
Wed Mar 3 14:58:22 GMT 2010
On Wednesday 3. March 2010 12.48.52 Zachris Trolin wrote:
> I'm new to QT and would like some pointers of how and what can be done in
> the way of video manipulation.
> I'm very interested in how to grab frames, or perform manipulation on
> framedata using QT and preferable phonon (although any other suggestion is
> I would like to give it a try to implement a VJ:ing application, I have
> used pd, keyworx, grid etc, and they all have some problems.
> The very first step would be to implement a variable rate videoplayer, but
> soon after comes frame manipulation: preferably done in QT (something
> like the composition demo, but with videostreams. ).
> Any suggestions?
There is some API in Phonon for video frame manipulation, but it isn't stable
nor supported in all backends yet.
You can see a demonstration of it here:
The code for Quasar is here (although unmaintained and probably not working):
Martin T. Sandsmark
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