On Monday 25 February 2008, Raúl Sánchez Siles wrote: > Hello All: > > Thanks for you kind answers and also for your great efforts on providing > free drivers for our hardware. > > George Peter Staplin wrote: > > Quoted Laurent Pinchart <[EMAIL PROTECTED]>: > >> Hi Raúl, > >> > >>> luvcview version 0.2.1 > >>> Video driver: x11 > >>> A window manager is available > >>> video /dev/video0 > >>> Unable to set format: 22. > >>> Init v4L2 failed !! exit fatal > >>> > >>> What does this message mean? Is there a way I could get a simple > >>> screenshot using the driver. Pointers are appreciated. > >>> > >>> Only -f yuv worked, but well, what about the others? > >> > >> Your camera supports YUV only, so there is no other format :-) > > What about a more descriptive error message? If you agree I may try to > work into a patch.
A better way would be to fall back to YUV if MJPEG is not available. Available formats can be enumerated, so this shouldn't be too difficult to implement. > > What you may be able to do is use the mjpg-streamer project's > > uvc_stream. The only problem I've had is writing a suitable program > > to work with its somewhat bizarre MJPEG format. Mozilla Firefox will > > display the JPEG frames, although with some bugs, so I wrote my own > > viewer. My viewer supports Linux and Win32. I just share the viewer > > program with my friends so that they can connect to the MJPEG stream. > > > > I also have a small patch to uvc_stream that seems to be useful. > > > > If desired I could clean it up a bit (it's only ~100 lines of code), > > and add a grab option to save individual frames. It uses code from my > > project called megapkg, specifically the megaimage, jpegext2, and ntk > > extensions to Tcl. > > I think this could be a solution as well, but I may not the be the right > person to look into it. Thanks, by the way. Best regards, Laurent Pinchart _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
