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
