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.






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