ITV3+1, ITV4+1 now full service

EEPhil

EEPhil

Number 28
Just noticed that ITV2+1 has moved to D3&4 and is now h264/MPEG-4. Also on that multiplex is ITV4+1 which appears to be a full service (also h264/MPEG-4). Meanwhile, back on SDN, ITV3+1 is still MPEG-2 but could be a full service.
 
EEPhil said:
Just noticed that ITV2+1 has moved to D3&4 and is now h264/MPEG-4. Also on that multiplex is ITV4+1 which appears to be a full service (also h264/MPEG-4). Meanwhile, back on SDN, ITV3+1 is still MPEG-2 but could be a full service.
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What do you mean by "a full service" in this context?
 
It's running now and appears in the EPG with the relevant channel +1 programmes. Not just a couple of hours around 4am for shopping. No longer an LCN hog.
Or, in simpler terms, as ITV1+1, ITV2+1., Film4+1, C4+1, 5+1, DaveJaVu...
 
EEPhil said:
It's running now and appears in the EPG with the relevant channel +1 programmes. Not just a couple of hours around 4am for shopping. No longer an LCN hog.
Or, in simpler terms, as ITV1+1, ITV2+1., Film4+1, C4+1, 5+1, DaveJaVu...
Click to expand...
Clearly I'm being thick, I still don't understand. Are you saying they were internet stream channels previously, or what? Of course they appear in the EPG, all channels do.
 
Itv3+1 and itv4+1 were placeholders. Data channels for about 22 hours a day with a static caption - no idea whether they linked to a stream or not. Two hours, around 4am I think, was shopping. Now they are currently running a +1 version of the channel. (You may need a rescan).
 
So this is the first time that we've had MPEG-4 H.264 on a DVB-T mux. and folks still with MPEG-2 only kit won't be able to decode them (really, I wonder how few there are now):
Code: 
Service  8345 TV SD H.264  "ITV2+1"
Service  8347 TV SD H.264  "ITV4+1"
Service  8462 TV SD H.264  "E4 Extra"
Service  8464 TV SD H.264  "Film4+1"
I wonder where they've nicked the bandwidth from to add all those?

The page at https://www.freeview.co.uk/help/updates-alerts/channel-updates-16-september-2026 is so woefully incomplete, but what do we expect from the incompetent idiots that run that...
 
prpr said:
I wonder where they've nicked the bandwidth from to add all those?
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Unfortunately I don't have old data available to confirm anything. My guess would be that converting some channels to MPEG-4/H264 has allowed a reduction in bitrate. There may have been some null bytes and they could also downgrade the quality in the rest of the channels. ITV4+1 looks particularly crappy - slightly better than a static caption!
 
prpr said:
So this is the first time that we've had MPEG-4 H.264 on a DVB-T mux.
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Why do I get the feeling I've seen this somewhere before? Maybe I've seen it on a foreign multiplex listed on digitalbitrate.com. I think we may have discussed it here.
EEPhil

Post in thread 'Looks like the end is in sight for old DVB kit'

prpr said:
There is absolutely no reason why MPEG4 codecs can't be used with DVB-T on a suitable receiver, just as there is no problem using MPEG2 codecs with DVB-T2 (although there's not much point given its less efficient use of space).
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Ages ago I looked through some of the sites listed on www.digitalbitrate.com and I remember seeing MPEG4 on DVB-T. I've just had a quick look and there are still some there. If I'm to believe it all the multiplexes in Rome use DVB-T but all the transmission are MPEG4. What I find confusing is that in Germany they are using DVB-T2 and HEVC but, unlike...
 
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