Hi. I can confirm this also. Except on my card (using latest ivtv from cvs) when after switching channel, the top area (similar to your screenshots) also flickers. I just thought that was some randomness due to my setup.
On 11/16/06, Martin Dauskardt <[EMAIL PROTECTED]> wrote: > Hi Hans, > > there is still a problem since the early days of the ivtv driver: > Sometimes, immidiately after switching to a new (analogue) channel, the > picture begins to flicker. I analysed the stream and found out that in a GOP > of 12 pictures it is always the 4th and 10th picture which is faulty (see > pictures: > http://drseltsam.device.name/vdr/sample1.jpg > http://drseltsam.device.name/vdr/sample2.jpg ) > > In earlier ivtv-versions, it helped to switch the channel and go back. I > think it was starting with Rev 3349 when this didn`t help anymore. Since > this time I must stop the application and reload the ivtv-driver. > > A reliable fix for the vdr-plugin "pvrinput" to avoid the flickering is to > close and open the device before setting a new channel: > > close(video_fd); > char devName[64]; > sprintf(devName, "/dev/video%d", number); > video_fd = open(devName, O_RDWR); > > This makes channel switching 1-2 seconds slower, but the problem never > appeared again. Without this fix, I can reliably reproduce the problem. > Sometimes it takes a few dozen of channel switches, and sometimes it appars > after a few switches. > > Do you have any idea how the problem could be fixed in a better way in the > driver? > The strange thing is that some vdr users know the flickering problem very > well while others never had problems. I don?t believe that it is a problem > of the application, because it happens with two totally different coded > plugins (analogtv and pvrinput). > > Are there any similar reports from mythtv-users? > > Greets, > Martin > > > _______________________________________________ > ivtv-devel mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-devel > _______________________________________________ ivtv-devel mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-devel
