[linux-dvb] dvbloop - A virtual DVB adapter

Christian Praehauser cpraehaus at cosy.sbg.ac.at
Mon Nov 26 13:48:36 CET 2007

Andreas Oberritter wrote:
> Hello Steven,
> Steven Toth wrote:
>> Exposing an input to the kernel demux via userspace doesn't sound like a 
>> bad idea. It would certainly allow developers to build DVB/ATSC 
>> applications without having access to live feeds, instead using canned 
>> loops provided by who-ever.
>> Any reason why this feature (not necessarily this specific patch) 
>> couldn't be part of the regular v4l-dvb tree?
> I think the feature you want is already available. You can write a TS to
> dvr0. What makes dvbloop different is that it provides a virtual adapter
> (which might also be useful).
> Regards,
> Andreas
Hello Andreas!

Yes, I came to know this feature some while ago (loop-back via dvr device). 
But I also think dvbloop has its use-cases. For example,

(1) dvbloop used to deliver a TS stream received over a network from a PC having a real DVB card, or
(2) inside a Virtual Machine (VM). I personally use this for developing the dvb-net module. Could also
be used to do testing on dvb-core

BTW, I've created a development repository for dvbloop based on the current 
v4l-dvb master repository. It is located at: http://www.cosy.sbg.ac.at/~cpraehaus/hg.cgi/dvbloop/


Christian Praehauser <cpraehaus at cosy.sbg.ac.at>
|| //\\//\\ || Multimedia Communications Group,
||//  \/  \\|| Department of Computer Sciences, University of Salzburg

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