On 26/03/2008, Steve Jolly <[EMAIL PROTECTED]> wrote: > > Brian Butterworth wrote: > > I think you are confusing Freeview with Freesat. On Freesat the > > multiple services are statmuxed together, on Freeview BBC ONE is in > > 4.9Mb/s, apart from Scotland, Wales and NI where the extra two radio > > channels mean the whole of mux 1 is statmuxed. > > > I might be wrong, but I'm not confused. :-) I haven't done my own > measurements, but linowsat.com backs me up: of all the BBC One regions, > only London shows any kind of statmux-related bitrate varation that I > can see: > > http://www.linowsat.com/0282/all/0282.shtml
Yes... I realised this later. The streams on satellite are the same ones that get used on Freeview, so they are fixed bandwidth. You would need the original uncompressed sources from each region to encode from to stat mux properly. However, there are plenty of services statmuxed on many transponders on the satellites. > As I said, ideally the BBC One (London) and BBC Two services would form > > the foundation of BBC ONE HD and BBC TWO HD, but it would be brilliant > > if they could switch to the MPEG 2 SD transmissions for the regional > > news. I'm sure ITV1 HD would LOVE to do the same, especially for all > > that regional advertisting they are required to do... So, there may be > > a slight frame pause going to the news at 6:28, 6:58, 7:28, 7:58, 8:28, > > 8:58, 13:30, 15:28, 18:30, 19:59 and 22:25, but it would be a better way > > of sorting out the problem - well, cheaper. > > > > It's hardly rocket science! > > > I think you're underestimating the difficulties. And ignoring the > costs. :-) Bear in mind that you can't make any changes that would > break the millions of installed Sky STBs. As I pointed out before, it would only be the Sky HD boxes that would need reprogramming. The Freesat boxes have not been released yet, so they can be fixed. As the existing Freesat, fSfS (Freesat from Sky) and Sky subscriber boxes can't do MPEG4 or higher resolutions, there is no problem, they need no modification. > A simpler way to get a similar effect would be to tell the receiver > when > > a programme was being simulcast in HD on a different service, so > that it > > could automatically switch over to it at the appropriate moment, if > > that's what the user wanted, and back again at the programme's > end. I > > think TV-Anytime supports that kind of thing in the related content > > table, IIRC. > > > > That would have the same effect, but I personally would perfer to have > > my content in MPEG4 rather than MPEG2. > Your preference is noted. ;-) Personally I'd like Dirac. :-P I don't think that's on offer - it's MPEG-4 (part 10) or MPEG-2. Another thing occurred to me... the Freesat boxes (BBC/ITV Freesat UK, not fSfS) will need to get the user to set up their BBC and ITV regions on 101/103, so there is less of an issue here, as the boxes will default to London and England anyway. My concern here is not that anything is being done 'wrong', but that for a successful BBC in the future, it would be better for the consumers to get HD content on the standard six TV streams without having to dig deep into the EPG. S > > - > Sent via the backstage.bbc.co.uk discussion group. To unsubscribe, please > visit http://backstage.bbc.co.uk/archives/2005/01/mailing_list.html. > Unofficial > list archive: http://www.mail-archive.com/[email protected]/ > -- Please email me back if you need any more help. Brian Butterworth http://www.ukfree.tv
