[mythtv] EIT fixup help please

Janne Grunau janne-mythtv at grunau.be
Fri Apr 25 11:07:50 UTC 2008


On Sunday 20 April 2008 19:00:37 manu wrote:
> I would like to improve the eit in 2 ways: first all accents (French)
> are not correctly displayed, and I would like to do something about
> it. I guess I need to hack something up in eitfixup but it is not
> clear how yet, any pointer would be more than welcome.

That's probably a missing encoding in the eit. look at the bottom of 
libmythtv/eithelper.cpp. We can override the encoding with setting the 
eitfixup to kForceIso8859_15. The keys of the eitfixup map are
transport id << 32 | original network id << 16 | serviceid

If the service id is 0 the all channels on the transport will match. if 
transport and serviceid are 0, all channels with the origianl network 
id wil match.

> Moreover I am in the process of decoding the proprietary epg of
> canalsat caraibes (French people with canalsat subscription who might
> want to try it can contact me). It provides a 7-10 days epg and I
> would like to make the backend aware of it but it is not just a fixuo
> here, so if someone canpoint me to some docs on how to try to do it,
> that would be great.

How different are this epg data from standard EIT? Is there a way to 
detect if the data is broadcasted (maybe a descriptor in PMT). I fear 
there is no manuel and why have to look at the code and try to 
implement the epg gathering and parsing along the EIT and ATSC epg 

The the data structures for the table and descriptors should be in a new 
file in libmythtv/mpeg/, you will need to add listining and detection 
of the eit to libmythtv/mpeg/mpeg|dvbstreamdata.cpp depending on used 
SI standard of those channels. You probably have to add another 
callback for the mpeglisteners.
In libmythtv/eithelper.cpp should the transmitted data be parsed into 
the eit.cpp object which is the proxy for the database.

HTH, if you have more questions, feel free to ask


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