ITV-HD - finding PIDs?

[Tsiklon]

As most receivers don't seem to be able to find the video PID for ITV-HD and have to be entered manually, does anyone know how the video PID was discovered initially? Something like TSreader and looking at the NIT tables?

So if a new channel were to be transmitted using a format similar to ITV-HD, how might it be identified as a TV channel and how might the video PIDs be determined?

 

[Llew]

I looked at the raw stream in TSReader (ES pid 3401/3402) and used the setedit channel prog for my Fortec Passion to enter the pids. The rest is history

http://www.satellites.co.uk/satellite/freesat/124440-some-success-itv-hd-fortec-passion.html

Llew

 

[Tsiklon]

Llew (or anyone else), would you happen to know what the "Null packets" or "Null PIDS" are for? Do they represent spare capacity on the transponder?

 

[Llew]

Yes, if you view the pid graph you can see the percentages of all the pids add up to 100%. As the 'working' pids vary according to their use of the bandwidth at any moment in time, the null pid varies accordingly.

Llew