[mythtv] DVB integration - first attempt!

[Ben Bucksch]

Edward Wildgoose wrote:

>I'm thinking that a small perl script wrapped around dvbstream would take care of creating a suitable device for myth to access.  We can then start working on the myth side and I am happy to knock you up an mpeg stream which just plays in a loop and gets stuffed down the socket in order to simulate the effect of having a card.
>
I don't think that will be terribly useful. dvbstream, when used with 2 
PIDs (one aud, one vid), should provide me with basically a streamed 
MPEG file, not? I can use any MPEG file for that. What I am wondering 
about is if the timing does matter. dvbstream as well as PVR250 should 
provide it in realtime playback speed, while a recorded/played back 
stream would come in as fast as possible. I am not sure how the MythTV 
code would react to that.

Apart from that, it's useless to test the other (first) approach of 
incorporating everything into Myth - I need to be able to access the DVB 
device nodes to test that.

>But I'm thinking that something as simple as this could grab the output of dvbstream and stuff it into a named pipe.  From here on we can just worry about mythtv reading from /dev/video
>
This is where my knowledge ends. I have no experience with accessing hw 
devices, I have no clue, if there is any difference between a Unix 
socket, stdout and /dev/video or /dev/adapter0/dvr0.