[linux-dvb] Re: streaming DVB-t over a LAN

[Gregor Lawatscheck <gpel@mpex.net>]

> I've just ordered a DVD-t card (Hauppage Nova-t) from dabs and hope to run 
> it under Debian GNU/Linux although I'm not sure where to start - I've 
> dowloaded  the linux drivers but not sure how to watch channels in X.
Try mplayer http://www.mplayerhq.hu/ and dvbstream CVS ( 
http://www.linuxstb.org/dvbstream/ ).

> What I have found to be a problem is finding players that will listen to
> boradcasted MPEG2 streams.  It seems to stem from the fact there are a lot of
> methods to do this (from dvbstream to videolan etc), and each seem to use
> different methods of sending the data.   So I've yet to come across one that
> can both send the data mutlicast, and have a windows player and unix player
> access the stream.
MPlayer ( http://www.mplayerhq.hu/ ) is pretty good in dealing with rtp or 
http MPEG2 streams on both Unix and Windows (cygwin).

A windows compile of mplay is included in VDR Streamingcontrol 
http://streamingcontrol.p10info.de/. Although VDR itself won't run with a 
primary card the mplayer can be used to receive a rtp steam from dvbstream 
( http://www.linuxstb.org/dvbstream/index.shtml use CVS wih current drivers).

Another windows solution is the Elecard decoder which can also display an 
rtp stream ( www.elecard.com ) in WMP. Another program using Elecard is 
DVBVideoLAN ( http://dvbvideolan.mine.nu/ )

The only "problem" with mplayer is the deinterlacing filters don't work too 
well (at least not with the windows compile) and there are programmes that 
are sent interlaced, which look a bit rubbish on a CRT / LCD monitor. 
Elecard's deinterlace is pretty good, but obviously eats quite some CPU.

I guess interlacing is why a primary decoder card like a DVB-s rev 1.6 / 
rev 2.1 is unbeatable for overlay :) I haven't actually tried overlay in X 
- only TV out - but the full featured TechnoTrend / Siemens cards are 
supposed to be good on that unlike a dxr3.

There's also some project trying to combine vdr with Xine a software player 
for X - but it seems to be at very early stages:
http://www.google.com/search?q=vdr+xine

- Gregor 


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