[mythtv] Ticket #2811: BBC Series link patch
Stuart Auchterlonie
stuarta at squashedfrog.net
Wed Jan 17 10:32:16 UTC 2007
On Tue, Jan 16, 2007 at 04:49:19PM +0000, David Matthews wrote:
> MythTV wrote:
> > #2811: BBC Series link patch
> > Comment:
> >
> > With the default authority, is this used in a similar way to EIT data with
> > the EITa being the "authoritive" source for that mux, or is the
> > information
> > used to form the fully qualified CRID and that info is broadcast
> > consistently
> > across the muxes?
>
> I'm not sure I've understood your question so rather than start a
> discussion on trac I'm replying to mythtv-dev.
>
> The full form of a CRID from ETSI TS 102 323 is a URI of the form
> crid://<CRIDAuthority>/<data>
> e.g.
> crid://fp.bbc.co.uk/ABC123
> To save space in the EIT when sending the episode and series IDs it is
> only necessary to send the data part beginning with a slash ("/ABC123").
> The full CRID is created by adding the "default authority" (and
> "crid://" to be strictly accurate). The default authority can be
> transmitted in any of NIT, BAT or SDT. Currently it is transmitted on
> the SDT but it seems they will be transmitting it on the NIT in the
> future. I assume that the default authority to be used for the episode
> or series ID for a particular programme is the default authority for the
> channel on which the programme will appear, rather than for the
> transport on which the EIT data is being transmitted.
This is essentially what I was after. That the default authority is
a static bit of information, much like a channel name, but isn't
sent out with the data, rather it's sent out with the other
descriptive information for the channel.
Right, now i can sort this out :)
Stuart
More information about the mythtv-dev
mailing list