hopefully someone can help me on this.
I need to extract a movie into 8 substreams to display it on a 8-projector wall. Because the projectors have overlap regions, I cannot use the "scissors" to generate 8 substreams, but need to cut out each region per pixel and the scale it to fullscreen.
This already works fine. The problem is, that the output of jit.qt.movie is very slow. The video stream is taken from a DVD with 720 x 405 pixels with 25 fps in size. If I put the video stream directly from jit.qt.movie to a window (with hardware acceleration), by using a named context and using @noaccel 1 , the video runs very smooth (just like playing it in Quicktime).
If I take the matrix output of jit.qt.movie instead, I only get nearly 10 fps. It doesnt matter if I immediately move this matrix into a jit.window, or move it into a jit.gl.videoplane and use jit.gl.render to show it. The problem is that the jit.qt.movie is already delivering the frames in a too slow rate. Regarding cpu-power, there