On Mon, Jun 8, 2009 at 7:09 PM, W. Michael Petullo<mike@xxxxxxxx> wrote: > >>>> You indicated that you had reason to believe it's a PowerPC issue. Is >>>> there any reason that you came to that conclusion other than that you're >>>> running on ppc? I'm not discounting the possibility, but it would be >>>> good to know if you have other information that supports your theory. >>> >>> It was a hypothesis, but based on experience in "seeing" endian bugs in >>> video code and "hearing" endian bugs in audio code. After using PowerPC >>> long enough, you learn to jump to the endian conclusion pretty quickly. I >>> was wrong! >> >> Ok, well that's good to know. I did look at the code and couldn't see >> how it could possibly be an endianness bug. >> >> Bear in mind that the analog support for the 950q is still relatively >> new, and its entirely possible there are some application specific >> bugs to be worked out as there is more testing. >> >> Could you please describe in more detail the *exact* configuration you >> are attempting, including the versions of the applications you are >> using and command line arguments you are passing. If I can reproduce >> the issue here then I can probably debug it much faster. > > I have a VCR connected to my 950Q using the coaxial interface. > > Kernel is 2.6.29.4. > > I am using streamer from Fedora's xawtv-3.95-11.fc11.ppc: > > v4lctl setchannel 3 > streamer -r 30 -s 640x480 -f jpeg -i Television -n NTSC-M -c /dev/video0 -o > ~/Desktop/foo.avi -t 00:60:00 > > I am using gstreamer-plugins-good-0.10.14-2.fc11.ppc: > > gst-launch v4l2src ! ffmpegcolorspace ! ximagesink > > Mike > Looks like the gst-launch picks I420 colorspace mode by default (and the 950q expects UYVY). Try the following and see if your situation improves: gst-launch -v v4l2src ! 'video/x-raw-yuv,width=720,height=480,format=(fourcc)UYVY' ! ffmpegcolorspace ! ximagesink I haven't looked yet though to how gst-launch decides to use i420 by default. Perhaps the 950q isn't properly advertising it's capabilities. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
