I missed the start of this thread, but how do you know that this problem is the cause of ivtv?
Even if you have analog cable, your upstream provider is going to be using digital. They could be having random problems with their incoming single, which then gets sent to you via analog as a bad field. As well, if you have a dish / digital set top box with cable, it could be causing this bad field.... Just wondering if any work has been done to eliminate source signal as the cause of this bad image? On Mon, 16 Jan 2006 11:36:50 -0500 Al McIntosh <[EMAIL PROTECTED]> wrote: > Bryan Mayland wrote: > > >Bryan Mayland wrote: > > > > > >>Keith C wrote: > >> > >> > >>>Wow, I finally was able to play back your clip (VLC didn't seem to do > > > >>>it and Safari on Mac mangled the file, but mplayer from a firefox > >>>download worked). Thats a very strange flash. I got a screen grab > >>>of it. Its a partially shifted (or interlaced) frame that only > >>>occurs for a single frame. This needs someone from the dev list to > >>>look at it, so I'm cross posting it to that list. > >>> > >>>Here's the screen grab (its a tiff, and its 776 Kb) : > >>>http://allesys.com/images/flash.tiff > >>> > >>> > >> Thanks for the tiff, I couldn't play the file either. > >>Zot! I've got the same issue on a PVR-250, one frame every so often > >>(anywhere between 10secs and a couple minutes) has as the bottom of > >>its frame shifted horizontally off *just* like that. I just assumed > >>my card was crapping out, since my PVR-150 didn't do it. Now I'm > >>going to have to investigate. Running Kubuntu 5.10 and ivtv > >>branches/0.4 and lirc-0.7.2. > >> > >> > >> > >It looks like 0.3.8 works for me too. I went to r2668 which worked, > >and then I tried r2700, r2750, r2766, and then r2781. All those > >worked, which didn't make much sense. So I shut down and pulled the > >power cord and let the machine sit a few minutes and tried again. > > > >Now r2781 showed the error again. Rolled back to r2754, no error. > >Forward again to r2781, no error. Shutdown, wait, reboot with r2781, > >got errors again. > > > >This time I rolled back to r2766, no error again. Forward to r2781, > >still no error. Shutdown again! Error came back when the machine came > > > >back up (r2781). > > > >Now it was getting late so I decided to make sure my unload/reload > >process wasn't the thing fixing the frame errors. Cold booted with > >r2781, and haven't seen an error in 10 minutes :/ I wish it was more > >consistent about failing. I'll try more tomorrow. > > > > > > > > > > Bryan, > When you switched between revisions did you change firmware also? > What firmware version did you use as you cycled through ivtv revisions? > > > > > I ran mplayer -vo jpeg so it would output each frame to a single jpg. > > Frame 44 is fine, 45 is mangled, frame 46 is fine. > > http://allanmcintosh.com/pics/tmp/00000044.jpg > http://allanmcintosh.com/pics/tmp/00000045.jpg > > Then several hudred frames later I'll see 1 bad frame again. > > The recording these frames are harvested from was created with 0.4.2 > rev 3119 > at 640x480. > > > > > > > _______________________________________________ > 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
