Ok, another interesting test with the same cameras. This time I used luvcview for one camera and another program for the second that allows me to select the frame rate.
1st camera: YUY2 960x720 @ 10 fps 2nd camera: YUY2 640x480 @ 15 fps works but fails with error -28 at >= 20 fps. So you see that the bandwidth does indeed depend on the frame rate. Also quite interesting 1st camera: YUY2 960x720 @ 10 fps 2nd camera: YUY2 960x720 @ 5 fps Streaming starts but the picture of the second camera is completely messed up (the upper half is okay but the lower half is green and flickering) because packets are lost. I'll post more information as soon as I know where exactly the packets get lost but it might be a while ... Cheers, Martin On Wed, 15 Nov 2006 11:13:54 +0100, Martin Rubli <[EMAIL PROTECTED]> wrote: > Hey Vidar, > > I just did a little testing with two cameras, a QuickCam for Notebooks > Pro > (2006 model) and a QuickCam Orbit MP/Sphere MP (2006 model). > > Using two instances of luvcview the following combinations work (only > tested at the default resolutions): > > MJPEG: > All combinations up to 2 x 640x480 (15 fps). > 2 x 960x720 (theoretically 15 fps but my old laptop didn't manage to > decode more than about 2 x 10 fps). > > YUY2: > All combinations up to 2 x 640x480 (15 fps). > 960x720 (10 fps) + 640x480 (15 fps). > 1280x960 (7.5 fps) + 640x480 (15 fps). > > The following failed with error -28: > > YUY2: > 2 x 960x720 (10 fps). > 1280x960 (7.5 fps) + 640x480 (15 fps). > 1280x960 (7.5 fps) + 960x720 (10 fps). > > That should give you some indication of what you should be able to > achieve > with ffmpeg in terms of resolutions. > > Cheers, > Martin > _______________________________________________ > Linux-uvc-devel mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/linux-uvc-devel _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
