On Fri, 2008-10-24 at 14:10 +0100, Tony Houghton wrote:
I've read that ITV HD can only be viewd by pressing the red button on a Freesat receiver. Does this mean VDR can't access it?
It seems very unlikely. Red Button services merely act as a GUI frontend to the raw streams.. e.g. the 'News Multiscreen' support on Freeview was like for ages. There was a MPEG2 stream on one of the BBC's muxes which looked like this
---------------------------- | | | ######## | | ########### ######## | | ########### ######## | | ########### | | ########### ######## | | ########### ######## | | ######## | | | ---------------------------
Everything was black except for the # areas..
The BBC showed two News24 reels on the right, and BBC Parliament on the left. If you had the correct Vid and Aud PIDs you could see this raw feed. the 'Red Button' stuff just showed graphics to cover up the part you shouldn't have been able to see :)
In short, no. Hidden PIDs can be easily found by analysing the bitrates of each PID in a transport stream.
gdh