On 03/31/2011 12:04 PM, "Клиентский отдел \"Кибернет\"" wrote:
Thanks to all for your answers. Current disposition: Gentoo linux: 2.6.36-r8 (kernel uvcvideo driver). I'm testing 2.6.37.5-zen patched kernel (zen-kernel.org). It slightly reduce total cpu utilisation. But in embedded usb-bus and uvc drivers I found no changes. Yesterday I installed ZoneMinder 1.24.3 (trunk). I'm loading uvcvideo as module with quirks=128. This is allow me to use 4 webcams A4Tech PK-836MJ on each usb-root hub with 352x288 YUYV 30FPS streaming at the same time.
Have you considered using the mjpeg stream with mjpg_streamer (if the cameras support it)? I am currently streaming 6 cameras on an Atom D550 (more powerful then the 330) - with a pci usb card - at 640x480 - but only 5fps (I think I can increase the fps without too much trouble). I am also transcoding to mp4 using ffmpeg on the same machine - and I have spare processor left - on average using about 50%-60%.
Sebastian _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
