On Mon, 2008-06-30 at 20:15 -0400, Andy Walls wrote: > > > > > > > Please find the output attached, however I provide only 1 stdout and 1 > > stderr file instead of two, since the logs are identical for the static > > OSD and for the tape being played (so I assume it will not help much). > > You appear to have the correct syntax, but the command needs to be run > as the "root" user to get any useful output for me. > > If you did run it as root and your card is at a device node other > than /dev/video0, you'll need to add the "-d /dev/videoN" argument to > the command, where "N" is the proper number for the ivtv card of > interest. >
I will redo it this afternoon, however I am pretty sure I ran it as root moreover my device is at /dev/video0 and not something else. > > > One more thing: what is the exact color standard for VHS tapes in a > > PAL-BG land? I know for the TV it is PAL-BG but is it the same for the > > tape? Maybe specifying it manually would help. > > >From my research the biggest difference between letter standards are > parameters of the RF modulation. The letters make less of a difference > to the baseband video signal which the VCR records and outputs. > > > > In the meantime, after I wrote the previous paragraph, I experimented a > > bit with the PAL/SECAM modes with v4l2-ctl. PAL-B/G/H were better than > > PAL-D/I/K and much better than PAL-M/Nc/60. > > As it turns out, the baseband video signal for PAL-BDGHI should be the > same. PAL-N/Nc certainly has different sync and blanking levels. I > can't recall for PAL-M. PAL-60 has a different, 60 Hz vertical refresh > rate than the normal 50 Hz for PAL, and is never used over the air. It > is extremely unlikely that your VCR would output PAL-60. > > > > > The first group gave a > > non-striped, uniform blue screen (but with horizontal lock problems as > > for the latter two groups). Moreover, all SECAM types were as good as > > PAL-B/G/H! > > I think the biggest difference with SECAM over PAL is how the sound is > modulated in the RF signal. Maybe the color is done differently too, I > can't recall the details. What was a bit suspicious is that sometimes $ v4l2-ctl -s pal-X $ v4l2-ctl -S showed 'SECAM-X' instead of 'PAL-X' where X is B/D/G/H/I/... etc. For other combinations, the setting and the mode reported back were the same (as they should be). If needed, I can repeat these steps to spot which ones behave normally and which ones do not. > > > The next step will be to try to extract as much information as possible > > from under Windows. > > Also please try to dump the cx25843 registers again. > Do you have a hint how would one dump such registers under Windows? I have a Hauppauge tweaking utility, but it is mainly for adjusting the filters and the MPEG encoding parameters. Regards, Levente _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
