[mythtv-users] Fibre/Ethernet based IP based DVB - has anyone ever done this?

ryan patterson ryan.goat at gmail.com
Tue Mar 6 15:11:13 UTC 2007

On 3/6/07, Nicolai Hanssing <nh at deltaelektronik.dk> wrote:
> Hi all,
> Setup:
>         - Full duplex 100mbps fibreconnection to my house
> (www.dongenergy.dk), a 'packetfront' converts this into two ethernet
> segments, one for broadcastbased service (TV etc.), and one for normal
> data.
>         - IP-based TV broadcasted through IBGP [Internet Broadcast
> Gateway Protocol], i think.
>         - Linuxbased setop-boks from www.dbnet.dk type Kreatel 1500,
>           now Motorola
> (http://www.motorola.com/content.jsp?globalObjectId=7461-10536-10544)
> I want to use MythTV for direct Ethernet based caturing, and playback -
> obviously :-)
> What I know:
>         - Access to broadcast streams are filtered on MAC-adresses, and
> perhaps on a embedded service-key.
>         - IP-based TV broadcasted is through IGMP [Internet Gateway
> Multicast Protocol], i think.
>         - Streams are as far as I know NOT encrypted.
>         - Streams are some sort of MPEG2 with bitrates from 4-8 Mbps.
> What I have done so far:
>         - Tried to install FC5 + MythTV_0.20, but failed since I did not
> have any capture cards.
> So what I want to ask:
>         * Has anyone on the list ever tried a setup like this?
>                 * If yes, any guides for installing Myth for an
> application without a defined capture-card (ie. Ethernet interface)?
>                 * If yes, what capture/TV interface is selected in the
> setup.
>         * Is it at all possible to do this?
>                 * First setup, would be leeching a single stream through
> an ethernet-hub to the Mythboks.
>                 * Then getting/reversing the protocol used to get the
> channels broadcasted (IGMP + ??)
>                 * Getting the Myth-boks MAC allowed.
> Is this even the right list to ask this?
> Hoping someone to shed some light on the questions above,
> Nicolai
There is an IPTV tuner being added to MythTV .21.  It is available in MythTV
SVN right now.  I fooled around with it a while ago.  I could tune into a
channel on MythTV as long as it was already being sent to the set top box.
I couldn't change the channel or tune any channel directly from MythTV
though.  Good luck.  Keep us updated.
Ryan Patterson
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