[mythtv-users] On video w/mostly black,

[David A. Mason]

I used to have this issue when there was a lot of black on the screen, too.

I resolved it by changing the "Jitter Reduction" option in the playback
settings, if I remember correctly.

DAM

-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of wishbone at h4b.org
Sent: Saturday, November 22, 2003 8:02 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] On video w/mostly black,


Yes...  watching the file directly with mplayer and windows shows no
problems at all.  Which I actually hadn't tested yet.  I was actually
refering to useing mplayer to watch /dev/video directly and it doesn't have
any problems.  However, when I watch the recorded show with myth it studders
in the same place every time.  It appears particularly random, although it
does seem to happen more often when there is a lot of black on the screen.

I am not watching a pre-recorded program when anything else is recording or
watching live-tv.

I've tried pausing live tv and it doesn't help at all.  Even rewinding, but
like I said it seems to appear exactly in the same spot every time.  Low
motion VBR problem maybe?  (yes I'm reaching here for anything)

no error or otherwise strange messages from mythbackend or frontend logs.

DMA is always a possible solution, but I see this regardless if I'm watching
a show currently being recorded, or just watching an old recording.  I've
tested this with NOTHING else happening on the box.

Hope that helps get us closer =T  I'll turn on extra logging options if it
will help?

thanks again,
joshua


On Sat, Nov 22, 2003 at 10:35:10PM -0500, Chris Pinkham wrote:
> > It is in the recorded file and why wouldn't it show up in live tv?  
> > Isn't live tv "recorded" and you watch the ringbuffer file?  Anyway 
> > mplayer works fine and you can watch the live stream /dev/video 
> > without any problems.  I'm not sure about the other person who just 
> > mentioned this problem but I only seem to be having the problem in 
> > myth.  Anyway, the studders are ending up in the recorded files as 
> > well and not just in "live" tv.
> 
> So you ran mplayer on one of the Myth recorded files and mplayer 
> stuttered at the same point that Myth did when watching the file?
> 
> Couple questions:
> 
> Are you watching a pre-recorded program while another is recording?
> 
> Does the problem happen if you pause LiveTV for a few minutes and then 
> unpause it and continue watching?
> 
> Are there any messages printed out in the window you ran mythfrontend 
> from or on the backend?  How about the syslog, anything there from 
> ivtv?
> 
> I'm wondering if you're running into problems with reading/writing the 
> mpeg2 files at the same time or maybe dma problems or something.
> 
> --
> 
> Chris
> 
-- 

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