I have a system with one monitor and three HD 1080p projectors. The computer is a Mac Pro 4 cores and 8GB RAM and two graphic cards with both miniport (dual link) and DVI (The computer was bought four weeks ago, so it is really new and powerful). I implemented the MAX/Jitter routine using @colormode uyvy and jit.gl.videoplane to send the process to the GPU. In theory, the videos should be played fluently ( and it happens if I do the same directly with QuickTime) but they are not fluent. The patch is: jit.qt.movie 1920 1080 @colormode uyvy to open the video file. Then I fill a jit.matrix 4 char 1920 1080 and from there I crop the image using jit.submatrix. The result is sent to jit.gl.slab @colormode uyvy and then to jit.gl.videoplane for render and visualization. I was trying different configurations (like without cropping) and always obtaining the same result. If I use @colormode argb it is even worse. The patch is uploaded to check it.
Does someone know what is happening and how to fix it?