[mythtv-users] Bottom half of video blips

[Al Mcintosh]

I began to see this behaviour with the introduction of ivtv 0.4. I began 
to notice out of sync frames
This appears to be an issue with ivtv 0.4 from what I can tell. If 
anyone can help pinpoint what version this behviour was introduced that 
would help track down and fix the issue. Post your findings on the 
ivtv-devel list.

It appears that the behaviour only appears when encoding at a moderatly 
low resolution. Perhaps anything less than 720x480.

I see it consistently when encoding at  640x480 using DVD or MPEG-PS and 
6000-9000 vbr.


There is a thread on ivtv-devel regarding this issue, the following link 
also provides a video example and screen shot of what I was seeing.

http://ivtvdriver.org/pipermail/ivtv-devel/2005-December/001432.html




M Smith wrote:

> Using Gentoo and MythTV SVN both updated in October '05 with a PVR250 
> and standard analog Comast Cable.
>
> OK - I don't know the best way to describe this, but recently (within 
> the past month) I am getting a 'random jump / skip / blip / pixelation 
> /blur / whatever you want to call it' on the bottom half of the screen 
> of my recordings.  It lasts less than a second and is only a visual 
> annoyance (you don't really miss anything) and doesn't mess up the 
> sound.  It occurs on all stations from what I can tell.  I don't watch 
> a lot of live tv, but I haven't seen it so far through that.
>
> I can't figure out what could be causing this.  I hadn't made any 
> updates since this started occuring (at least that I can recall, 
> unless this had been occuring since the update and my memory is shoddy).
>
> Any ideas?  Thanks...
> Matt
>
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-- 
Allan