[vdr] Re: analog solution wanted!

[Michael Hunold <hunold@convergence.de>]

Hello Uwe,

> > eine private Mail in eigener Sache:
Sorry, this should have gone to you in private, but I mixed up the 
recepients. Ok, so here we go... ;-)

> so if Andreas could make some modification, this should work with
> analogtv plugin - without the need of an extra TV/Soundcard - right?
Hmm, that's difficult. "analogtv" is basically a mpeg-1 encoder, which 
takes the video signal from an analog video source, encodes it, then 
sends it to the dvb card.

>>Insgesamt bringt es also leider nichts, das Analog-Modul für vdr zu
>>unterstützen, weil die Infrastruktur dafür einfach nicht da ist.

> what do you mean exactly?

All osd functionality from vdr comes through the av7110 -- the av7110 
then "sends" the images to your tv-set or to the one video input port of 
the saa7146, where you can view it from with xawtv.

Now, the analog input module of the DVB-C is simply connected to the 
second video input port of the saa7146. You can control it via 
Video4Linux I/O-Controls.

So, "analogtv" needs to capture from /dev/video0, input 1. You won't be 
able to see the vdr output via "xawtv" anymore (because it's on 
/dev/video, input 0), but in theory the result of the whole stuff should 
still be visible on your external tv.

> IMHO lot of people would really look forward to an analog support as
> described above
>
> Can you provide me/us with some further information on your
> implementation - not too technical ;) 
See above. The saa7146 has two input ports. When you use the dvb input 
(port 0), then you use the dvb/vdr/osd stuff of thing through xawtv.

If you switch to port 1, then you get raw analog tv, the av7110 stuff is 
completely bypassed, but still works in the background.

> uwe
If the support for the analog-module is fully working, we can simply try 
it out and see if it works.

CU
Michael.




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