On Sunday 17 March 2002 13:42, Arpi wrote: > Hi, > > > It can also dump the Service Information as an XML file and contains a > > utility to convert this XML file into a channels.conf file for VDR. Scripts > > sounds interesting. what about adding automatic transpoder search/scan > function? i'll may do it, if you're interested. > i've started to write such app, but i stopped because i don't know how that > service and other information stuff works, so my app just scans the freq > range.
There are two approaches to searching a satellite for transponders. The first is to use the Network Information data broadcast as part of the SI. This partly works, but doesn't always give you the complete set of transponders. The "-x" option in dvbtune does this (sort of). You specify the first transponder to tune to, and then -x will recursively scan all transponders listed in the first transponder. The second is to scan the frequency range. This can work fine if you know the possible symbol rates you are searching for, but with the Technotrends cards, it is very hard to search for unknown symbol rates. However, this shouldn't be a problem for satellites like Astra (19 or 28 east) and Hotbird. However, the most reliable solution I have found is to write a short script that extracts the transponder frequencies from a website like www.lyngsat.com, and then use another script (such as the one included with dvbtune) to scan all those transponders for channels. This is how I create my own channel lists. Regards, Dave. -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
