[Kwintv] Re: Re: My old problem with v4l & xVideo

[Andras Mantia]

Dirk Ziegelmeier wrote:

> On Monday 14 June 2004 00:26, Andras Mantia wrote:
>> Andras Mantia wrote:
>> > So does anyone see this behavior? Do you have any idea what it can be
>> > (kdetv problem or something other)?
>>
>> I found the reason: the zvbi / teletext plugin. Without zvbi there is no
>> image freeze and without teletext there isn't either. But of course I
>> will not have teletext in this case. :-(
>>  I have zvbi 0.2.5. Is there a know problem with this version?
> My setup is very close to yours: zvbi 0.2.5., Kernel 2.6, AMD 2000+,
> SuSE9.1. I don't see these freezes. Is it the teletext plugin or the
> vbidecoder plugin?
The problem disappears if I disable either the teletext or the vbi plugin. I
watched the TV for some hours without any problems. 
 I've upgraded the zvbi to 0.2.8, but it doesn't help.

> Teletext only decodes, I suspect the vbidecoder to 
> cause the slowdowns. Oh, and beware, the vbidecoder has an optimisation,
> it shuts down when no client (teletext or channelscanner) is using it.
> What vbidecoder does: It has a thread that reads /dev/vbi*, decodes and
> sends Qt events whenever e.g. a page is decoded or a station name is
> broadcasted. Maybe the event sending is too fast and fills Qt's event
> queue?

It might be.It seems to be periodic, but I haven't measured the time
intervals between freezes.

Andras

> 
> Dirk


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