[mythtv-users] mpeg2 playback quality captured with PVR-150

[Chandi Bernier]

Hi guys,

I've played an mpeg2 file I've found on the net at 5mbps and it did look
fine compared to my recordings. I guess that the problem lies in the capture
card.

The signal I get from the cable is very good since my TV displays it
perfectly.

Even when I encode at 14-15mbps with no dmesg errors, the artefacts are
still there.

Could it be that my signal is too low or too high?

Could it be the card's settings?

Could it be because the card is quite new and it is based on a Samsung tuner
??

Thanks again,

Chandi
-----Message d'origine-----
De : John Drescher [mailto:drescherjm at gmail.com] 
Envoyé : 5 octobre 2007 20:59
À : Chandi Bernier
Cc : Discussion about mythtv
Objet : Re: [mythtv-users] mpeg2 playback quality captured with PVR-150

> Is there a signal booster in the PVR-150? The signal level is perfect in
my
> TV which only is a splitter away from the PVR. But it only does the bars
on
> 2 channels out of 25.
>
No. The PVR 500 is the only one I know with a amp.

>
> What scares me the most is the pixelisation and other artifacts.
>
> You were right. I've got some messages in the dmesg.
>
> >ivtv0: All encoder MPEG stream buffers are full. Dropping data.
> >ivtv0: Cause: the application is not reading fast enough.
>
> Could that be the cause?
>
This will cause blocky off color artifacts.

John