[linux-dvb] Re: Software-only Loopback DVB

[Holger Waechtler <holger@convergence.de>]

Emard wrote:
> HI
>
> To greatly increase the number of people who can
> try, test and improve dvb-kernel without prior
> owning of the card and infrastructure, it would
> be of great benefit that a software-only, dummy
> dvb device is available in the kernel.
>
> This device will act as normal dvb card, which
> will, upon tuning provide a blueish test screen,
> continuous tone and, if practicable, cca every 
> 50th of second should dump few nework test packets 
> consisting of one ping, one udp and one tcp packet.
>
> All of that can be kept in one prepared
> half-frame of TS stream.
This would require an MPEG-decoder, if you don't have this your test 
tone and images don't make any sense.


> If possible, from user space should be possible
> to feed such dummy device with saved TS stream
> to simulate real situation.
We could register a software demux on request. This would allow 
DVB-over-IP applications using the DVB infrastructure. The DVB over IP 
protocol was specified in TM2578R3 "Transport of DVB Services over 
IP-based networks, MPEG-2 TS", when somebody has some time it would be 
great to introduce "network-frontends" which can feed the demux directly.

Holger



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