On Fri, 2009-11-20 at 11:22 -0800, Tony Ross wrote: > The PVR-500 card that I'm using apparently introduces two features that > don't exist in the original recordings, as evidenced by viewing on a regular > TV screen the VHS tapes that I'm capturing.
Well, likely the case is your TV is more tolerant of marginal video signals - see below... > A thick black vertical band is on the entire left side of the video image, > and a thin band of distortion exists along the entire bottom. How many pixels wide is the vertical band? There should be 720 pixels total across the whole line. How many lines at the bottom of thre screen are affected? An NTSC screen will be 480 lines tall when digitized. > What might be causing these features? Have I got a bad card? Not likely. Most likely your VCR is putting out crappy horizontal sync and/or vertical sync. Tweaking various registers in the CX2584x chip may have positive results for you- but it's not easy for the general user. I wanted to added some advanced controls for twiddling the CX2584x parameters, and at the LPC in Portland we somewhat decided that v4l2_subdev specific device nodes would be used for "technician" type controls. I'm waiting for those v4l2_subdev specific device node changes to go into the v4l-dvb repository before added specialized "tweaker" controls to the cx25840 module. Regards, Andy _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
