Newer SVN versions of MythTV apparently do support pulling in data from the DVB program descriptors (I live in North America, where DVB isn't available, so I can't comment on how well it works). I have done some DVB-related work for my employer though, so I do know how the system works.
The EIT is the "Event Information Table" (if I remember my TLAs correctly). The DVB specification supports sending lots (and I mean lots) of information within it (the basics such as show start/end times, program name and genre, but also things like complete cast lists, MPEG format information, etc.). The way it works is that within the MPEG-2 stream that is received by your DVB card, there are video, audio and PCR (timing) PIDs for one or many "channels", there are extra PIDs that are added in by your provider (or may come from the original satellite feed - regardless of how they got there, they are there). A DVB card can listen on these PIDs and capture/parse the data, and turn it into program guide entries. Most of it is TLV-type (type, length, value) data with a fair amount of ASCII text. As I said, I don't know the specifics of the EIT processing within MythTV, but I would suggest that you stick with the tv_grab programs if you get accurate data from them. The reasons that I suggest this are: 1. With the DVB streams that I have seen, the program guide information within the DVB stream is only good for 1-2 hours (typically, you get the "now" and "next", the currently showing program, and the next program). This means that it will be difficult to plan far ahead in the future for scheduling, since the data just won't be there. 2. In order to get complete EIT data, your DVB card will likely need to hit multiple frequencies to capture the EIT data on those frequencies. If you have a single card and aren't recording, this won't be an issue, but if you're recording back to back shows and only have a single card, you've got nothing to tune to other frequencies to find the EIT data. In that case, you're missing program guide listings. Again, this information doesn't come from the MythTV implementation (I've implemented this in the past, and it's quite painful), but comes from my knowledge in the area. YMMV, depending on what kind of hardware you have, and how much program data you want (I'm quite happy with DataDirect, and having about 10 days worth of listings). -- Joe --- Jakob Fix <[EMAIL PROTECTED]> wrote: > Hello, > > I've heard that Myth should be capable by now to > retrieve EPG data > from the DVB stream. There seems to be quite some > talk on the dev > list. > > Is this correct? If so, which version of Myth > should one have in > order for this to work? > > So far I'm using tv_grab_dvb which works fine > although it has some > problems with timezones, and it only gets the > current channel's > transport stream's EPG data. > > Oh, and what does EIT mean, and what's the > difference with EPG > (wikipedia was no help here)? > > -- > cheers, > Jakob. > _______________________________________________ > mythtv-users mailing list > mythtv-users@mythtv.org > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > __________________________________ Yahoo! Music Unlimited Access over 1 million songs. Try it free. http://music.yahoo.com/unlimited/ _______________________________________________ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users