On 04/28/2011 08:30 PM, damateem wrote:
I want to use wxArt2D to draw on live video to mark features in the video. For instance, I might draw a line where an edge is detected and then update the line as that edge moves in the video.

wxArt2D can not play video, so live video is played how?
In case you mean you have a sequence of frames in some image format, and want to add stuff to that, I think makes sense.

It would be great to have resizeable video objects in wxArt2d, but i don't know how to display a video into a rectangular area. I know all the software to handle video is available in linux "gstreamer ffmpeg etc.". But i don;t have the time to dive into that. In principle i think it is possible. But speed is always an issue. Even in video editing apps, when editing they only display the video small/low resolution.

With or without wxart2d, video is complicated i think. The real solution is with hardware acceleration, without that, the software is to busy putting 25 frames per second to the screen in order to be able to do anything else.
So a thread for each video displayed??

I made once an application to show slides as a slideshow with a transition, but with a walking ticker at the bottom. The speed of the ticker walking is close to the framerate. Even with OpenGl and all that is complicated.

Hope this helps you.

Klaas


Before I spend a great deal of time understanding how to use wxArt2D, I thought I'd get some advice on feasibility.

   1. Is this a good use of wxArt2D?
   2. Any advice on how best to implement this feature using wxArt2D?



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