[linux-dvb] Re: scantv hangs

[Michael Hunold <hunold@convergence.de>]

Hello Michael,

fyi: the list has reply-to set to the sender, so you sent your answer to 
me personally only. I took this discussion back to the mailing list, 
please use "reply to all" next time, so that user can look up stuff in 
the mailing list archives.

If it was your intention to continue this discussion in private (I did 
not see anything personal in the mail, though) I apologize in advance.

> > Running the analog module with "xawtv" and "vdr" in parallel simply does
> > not work, because access to the tuner is not exclusive, ie. tuning in
> > "xawtv" and "vdr" will kill each others settings. Of course this is a
> > bug and should be fixed.
>
> Well, I have to disagree .. in some sense. I use xawtv as a frontend to vdr.
> This works fine. Using CVS-dvb-driver I can switch from dvb to television 
> (analog) an back within xawtv. 
In that case (ie. switching to analog tv) "vdr" should go into some 
"suspend mode" (I don't know if something like this exists) or at least 
free the frontend device, so that "vdr" (or some plugin) does not tune 
to another frequency accidently.

> This works but I have to find the analog
> channels by interupting scantv ;-( yes, quiet buggy.   
As I already said, "scantv" only helps you to find an initial 
configuration. But you can do all this manually in "xawtv", too.

> > There is no usable scenario where you would want to run both programs in
> > parallel anyway IMHO.
> There are channels I receive only by dvb or analog. Thus IMHO it's convenient
> to use both at the same time.
Ok, I admit that I wasn't very precise: no usable scenario means the 
usual "vdr" user which has the tv connected to the video output of the 
card. Because the analog stuff is completely separated from this ouput, 
it's completely useless, unless you use your monitor with "xawtv" to 
watch tv.

> analogtv as a plugin to vdr seems to be a
> solution. I don't know how far it's integrated, do you know?
In theory it should work, but of course not if you plan to still use 
"vdr" in conjunction with "xawtv" on your monitor. "analogtv" captures 
live-tv from the analog input (so no overlay video with "xawtv" is 
possible any more) compresses it to mpeg and uses the playback 
facilities of the card to show it.

The main problem that I described above exists here, too: "analogtv" 
needs to tune the tuner, while "vdr" already has it open via the 
frontend device. It currently works, but only because both don't know of 
each other.

> Thanks.
> Michael
To be honest, I personally think that the analog module of the dvb-c 
cards isn't really usable for a "real" tv experience, because it was 
simply glued to the dvb hardware, nobody really cared to make it really 
usable completely.

It sucks that imporantant programs are not available digitally on cable 
but fixing it on the software side (ie. encode to mpeg1 in realtime via 
"analogtv") contradicts the idea that the dvb cards with mpeg decoder 
can be used on systems with small processors, too.

CU
Michael.




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