On Wed, 2010-01-20 at 14:22 -0800, k niemand wrote: > Hi Andy, > I am residing in the US and I am using the HVR-1600 to watch some > broadcasting from my cable box (using s-video). A while back you had > mentioned that you were going to work on the VBI issue of this card. I saw > that you had completed support for sliced and raw VBI for 625 line system. I > recently downloaded a fresh v4l-dvb copy from the mercurial deposit and > compiled it. On my system (NTSC, s-video from a cable box), I still see the > black and white horizontal line on the top. In one of your earlier email you > wrote: > "The wrong values for vblank and vactive may be being used in the > cx18-av-core.c file." > > Any idea what it would take to get this working for NTSC? I am more > than happy to try out some changes.
The latest changes for NTSC and other 525 line systems should already have this fixed. Quite a while ago in fact: changeset: 10446:d6f1e45f8167 user: Andy Walls <[email protected]> date: Sun Feb 08 20:40:04 2009 -0500 summary: cx18: Finally get sliced VBI working - for 525 line 60 Hz systems at least The driver should not provide any visible NTSC VBI lines at the top of the screen. If you bypass the cable box, and connect the coaxial cable into the analog RF tuner connector of the HVR-1600 and use the HVR-1600's tuner, do you get the black and white VBI line at the top of the frame? Is it on all channels? Regards, Andy > Thanks a lot, > > Joe > > --- On Tue, 2/24/09, k niemand <[email protected]> wrote: > > > From: k niemand <[email protected]> > > Subject: Re: [ivtv-users] CX18: Black and white horizontal line with > > HVR-1600 > > To: [email protected] > > Date: Tuesday, February 24, 2009, 9:32 AM > > > > I had downloaded the lates one a couple of weeks ago, > > compiled it and installed it, but the problem is still > > there. > > > > Thanks for all the work, > > Joe > > > > > > > > Well I'd suggest the latest driver from the main > > > repository: > > > > > > http://linuxtv.org/hg/v4l-dvb > > > > > > and see if the problem still persists. If dmesg > > tells you > > > right now > > > that you're using a cx18 driver less than version > > > 1.0.4, things should > > > get better with the latest driver. > > > > > > Instructions are here: > > > > > > http://www.ivtvdriver.org/index.php/Cx18 > > > > > > but last I heard, Ubuntu does some distribution > > specific > > > things that may > > > make compiling the latest v4l-dvb repo harder than it > > has > > > to be. Sorry, > > > I won't be able to help with that if that's the > > > case. > > > > > > > > > > Any idea of when you have time to look at this > > issue? > > > It sounds like > > > > you are very busy. > > > > > > I'm travelling off and on the the next two weeks, so > > > I'm not sure when I > > > will be looking at it. > > > > > > Regards, > > > Andy > > > > > > > Anything I can try? > > > > > > > > Thanks, > > > > Joe > > > > > > > > > > > > > > > > --- On Thu, 2/12/09, Andy Walls > > > <[email protected]> > > wrote: > > > > > > > > > From: Andy Walls <[email protected]> > > > > > Subject: Re: [ivtv-users] CX18: Black and > > white > > > horizontal line with HVR-1600 > > > > > To: [email protected], > > "User discussion > > > about IVTV" <[email protected]> > > > > > Date: Thursday, February 12, 2009, 10:45 PM > > > > > On Thu, 2009-02-12 at 17:11 -0800, k > > niemand > > > wrote: > > > > > > I have a HVR-1600 card and installed > > the > > > latest > > > > > driver. I use the > > > > > > latest Ubuntu distribution. Composite > > input > > > works fine > > > > > apart from an > > > > > > annoying black and white horizontal > > line at > > > the top of > > > > > the picture. I > > > > > > tried the --set-crop option using > > v4l2-ctl > > > (v4l2-ctl > > > > > > --set-crop=top=1), but the responds I > > get is > > > > > "VIDIOC_G_CROP: failed: > > > > > > Invalid argument". > > > > > > > > > > The driver doesn't really support the crop > > > ioctl. It > > > > > provides a stub > > > > > that goes through some trivial motions, but > > then > > > always > > > > > returns -EINVAL. > > > > > > > > > > > > > > > > Does anyone have any ideas of how to > > get rid > > > of this > > > > > line? > > > > > > > > > > Well, I have to fix the driver to get rid of > > it. > > > > > > > > > > That line is part of the Vertical Blanking > > > Interval; the > > > > > white areas are > > > > > data that's being sent (like CC over NTSC > > or > > > VPS or > > > > > Teletext for other > > > > > video standards). The wrong values for > > vblank > > > and vactive > > > > > may be being > > > > > used in the cx18-av-core.c file. > > > > > > > > > > Are you using PAL, SECAM, or NTSC? Is > > this a new > > > problem, > > > > > or one that > > > > > you have always had? What is the > > composite video > > > source: a > > > > > VCR, a cable > > > > > convertor, or something else? > > > > > > > > > > Regards, > > > > > Andy > > > > > > > > > > > > > > > > Thanks, > > > > > > Joe > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > ivtv-users mailing list > > > > [email protected] > > > > http://ivtvdriver.org/mailman/listinfo/ivtv-users > > > > > > > > > > > > > > _______________________________________________ > > ivtv-users mailing list > > [email protected] > > http://ivtvdriver.org/mailman/listinfo/ivtv-users > > > > > > > _______________________________________________ > ivtv-users mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-users > _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
