COM8 running - has PIDs

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kasg

06-07-2014

Originally Posted by lotrjw:
“Ive added a letter to my altered version of the UHD test card meet test card U:
http://imgbox.com/POTl26DT”

You have far too much time on your hands. For which we are all exceedingly grateful.

jimbo

08-07-2014

Which match is being shown here for the semi finals? Any news on what is currently on? Is it still the first match shown? Thanks

Greebo

08-07-2014

Originally Posted by jimbo:
“Which match is being shown here for the semi finals? Any news on what is currently on? Is it still the first match shown? Thanks”

Neither semifinal - they aren't from the Maracanã stadium where the UHD gear is.

Test is currently showing a replay of the France Germany quarterfinal - maybe looping after only the first 15 minutes or so, as whenever I've looked at a frame this morning that's all I'm seeing.

edit: it loops back to the kickoff at around 22 minutes.

jimbo

08-07-2014

Thanks for that. It will be interesting to see what happens after the final.

When this game wnet out live, did it go straight from test cqard to programme with no formal channel ID.

Greebo

08-07-2014

Originally Posted by jimbo:
“Thanks for that. It will be interesting to see what happens after the final.

When this game wnet out live, did it go straight from test cqard to programme with no formal channel ID.”

Well we know that UHD tests will continue for the Glasgow Commonwealth Games [1]. What isn't clear (to me at least) is whether they'll carry on using COM8 or drop to internal IP-based testing only. I can tell from twitter that staff in BBC Bristol were watching the UHD trial for the France Germany game (and were under the impression it was the first test! [2]) and noone has reported COM8 down there so I presume that was via IP.

As for any sort of channel idents or continuity - I don't actually know, but I suspect not. Remember I can't watch live, my scripts are just grabbing a frame ever few minutes that I can see on an internal webpage if I choose to look - and I didn't happen to see anything between testcard and live football - but yes there could have been. Anyone else see anything?

[1] thanks to A516 - http://www.a516digital.com/2014/06/b...rials-for.html - it would be nice if there was a public demo in Media City too or if anyone wants to pm me and invite me in anyway? Hint!

[2] see https://twitter.com/tomo778/status/485108348145385472 and https://twitter.com/jackmroberts/sta...90822543921152

chrisy

08-07-2014

Originally Posted by Greebo:
“Well we know that UHD tests will continue for the Glasgow Commonwealth Games [1]. What isn't clear (to me at least) is whether they'll carry on using COM8 or drop to internal IP-based testing only.”

It will continue to be broadcast - the BBC press release was quite clear.

lotrjw

14-07-2014

Did the BBC show the World Cup final in 4k UHD?

Captin

14-07-2014

Originally Posted by lotrjw:
“Did the BBC show the World Cup final in 4k UHD?”

Yes they did.

I'll see it tomorrow, need to collect a recording from a friend who lives close enough to Crystal Palace.

DragonQ

14-07-2014

Originally Posted by Captin:
“Yes they did.

I'll see it tomorrow, need to collect a recording from a friend who lives close enough to Crystal Palace.”

Obviously the stream would be huge but would it be possible for you to upload say a one minute clip somewhere? Would be nice to test some UHD HEVC material on my HTPC.

For others asking about software that will support UHD and HEVC, the current "de facto" set is probably this:

Splitters: LAV Filters
Decoders: LAV Filters
Renderer: MadVR (advanced users, max quality) or EVR (much simpler, good quality)
Player: MPC-HC or PotPlayer

You won't get any HEVC hardware acceleration right now but a beefy CPU will work fine.

chris_paulin

14-07-2014

Got some TS dumps and screen grabs here

https://www.dropbox.com/sh/4mwi8io20...iEjOEdNTokSZRa

jimbo

14-07-2014

Originally Posted by DragonQ:
“Obviously the stream would be huge but would it be possible for you to upload say a one minute clip somewhere? Would be nice to test some UHD HEVC material on my HTPC.

For others asking about software that will support UHD and HEVC, the current "de facto" set is probably this:

Splitters: LAV Filters
Decoders: LAV Filters
Renderer: MadVR (advanced users, max quality) or EVR (much simpler, good quality)
Player: MPC-HC or PotPlayer

You won't get any HEVC hardware acceleration right now but a beefy CPU will work fine.”

the channel numbers for this mux is

795: Test
796: Test.

However it is entirely separate to the freeview setup - ie it's its own little network.

kasg

14-07-2014

Originally Posted by chris_paulin:
“Got some TS dumps and screen grabs here

https://www.dropbox.com/sh/4mwi8io20...iEjOEdNTokSZRa”

You're popular!

Error (509)

This account's public links are generating too much traffic and have been temporarily disabled!

lotrjw

15-07-2014

Originally Posted by kasg:
“You're popular!

Error (509)

This account's public links are generating too much traffic and have been temporarily disabled!”

its a shame web hosters do that!

dave.chapman

20-07-2014

Before the final, they were showing a rolling loop of the first 22 minutes of the France-Germany quarter-final. At about 19:20 they cut from that directly to a shot of the stadium just before the teams came out to warm up, and they continued broadcasting until about 23:09 before cutting abruptly back to their rolling loop of France-Germany.

This wasn't BBC One's coverage, it looked more like some kind of raw FIFA feed.

Since about the following day, every time I've checked the channel, they've been showing a rolling loop of part of the final (starting somewhere in the second half).

I was a bit late to the party, so didn't manage to capture the first two games in their entirety (anyone reading this have them?), but I did capture (from Crystal Palace) the 30-minute loop of the Columbia-Uruguay game, and the 22-minute loop of France-Germany, as well as the entire final.

I've no way to play these streams currently, but I've re-encoded them to (relatively) low-res videos in order to actually see what was being broadcast. If anyone is interested, this is the ffmpeg command-line i used (using a very recent version of ffmpeg - i.e. from about 4 or 5 days ago):

Code:

ffmpeg -i input.ts -map 0:p:61440 -vf scale=640:360 -acodec copy -vcodec libx264  -crf 22 output.mkv

This seems to work well, and maintains the 59.94 progressive frame-rate. It did take about 18 hours to run though.

Dave.

DragonQ

20-07-2014

You can play the files in any half-decent media player. I listed the best choices earlier.

dave.chapman

20-07-2014

Originally Posted by DragonQ:
“You can play the files in any half-decent media player. I listed the best choices earlier.”

You're assuming I have any hardware capable of decoding it in real-time. Which I don't.

Greebo

21-07-2014

COM8 has gone to null packets only from Winter Hill - sometime after 7pm.

Preparation for the Glasgow UHD trial?

edit: COM8 not currently broadcasting from Winter Hill.

figrin_dan

22-07-2014

Yep, the whole mux has been switched off at Crystal Palace too.

Greebo

22-07-2014

COM8 up again from Winter Hill at around 11:30.

The general arrangement of PIDs seems to be the same as previously. Video on 101 is currently something involving Dan Snow on the footplate of a steam locomotive.

Edit: it could well be an upscaled playout of Genius of Invention

StevenBagley

22-07-2014

Originally Posted by Greebo:
“COM8 up again from Winter Hill at around 11:30.

The general arrangement of PIDs seems to be the same as previously. Video on 101 is currently something involving Dan Snow on the footplate of a steam locomotive.

Edit: it could well be an upscaled playout of Genius of Invention”

Presumably it has now switched over to being 3840x2160@50p instead of 59.94Hz?

Steve

Greebo

22-07-2014

Originally Posted by StevenBagley:
“Presumably it has now switched over to being 3840x2160@50p instead of 59.94Hz?”

Yes - ffprobe now showing :

Code:

Input #0, mpegts, from 'com8.ts':
  Duration: 00:00:06.71, start: 5516.009511, bitrate: 35607 kb/s
  Program 61440 
    Metadata:
      service_name    : Test
      service_provider: 
    Stream #0:0[0x65]: Video: hevc (Main) ([36][0][0][0] / 0x0024), yuv420p(tv), 3840x2160 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn, 50 tbc
    Stream #0:1[0x66](eng): Audio: aac_latm ([17][0][0][0] / 0x0011), 48000 Hz, stereo, fltp
  Program 61504 
    Metadata:
      service_name    : Test.
      service_provider: 
    Stream #0:0[0x65]: Video: hevc (Main) ([36][0][0][0] / 0x0024), yuv420p(tv), 3840x2160 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn, 50 tbc
    Stream #0:1[0x66](eng): Audio: aac_latm ([17][0][0][0] / 0x0011), 48000 Hz, stereo, fltp
[hevc @ 0x2299320] nb threads_frame = 3, nb threads_slice 1, thread_type = frame 
[aac_latm @ 0x2299e20] nb threads_frame = 1, nb threads_slice 1, thread_type = null

whereas with the feed from Brazil it was as follows:

Code:

Input #0, mpegts, from 'com8-wh.final-buildup.1min.ts':
  Duration: 00:01:01.04, start: 8235.696267, bitrate: 39687 kb/s
  Program 61440 
    Metadata:
      service_name    : Test
      service_provider: 
    Stream #0:0[0x65]: Video: hevc (Main) ([36][0][0][0] / 0x0024), yuv420p(tv), 3840x2160 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn, 59.94 tbc
    Stream #0:1[0x66](eng): Audio: aac_latm ([17][0][0][0] / 0x0011), 48000 Hz, stereo, fltp
  Program 61504 
    Metadata:
      service_name    : Test.
      service_provider: 
    Stream #0:0[0x65]: Video: hevc (Main) ([36][0][0][0] / 0x0024), yuv420p(tv), 3840x2160 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn, 59.94 tbc
    Stream #0:1[0x66](eng): Audio: aac_latm ([17][0][0][0] / 0x0011), 48000 Hz, stereo, fltp
[hevc @ 0x3085320] nb threads_frame = 3, nb threads_slice 1, thread_type = frame 
[aac_latm @ 0x3085e20] nb threads_frame = 1, nb threads_slice 1, thread_type = null

jimbo

24-07-2014

Update on COM8

Looks as if the sound of this channel is now what was on BBC HD Channel during daytime - ie 5 minutes of sample programmes.

I played back in ffplay and got a white screen not a picture. Is there a picture on here or not?

Can anyone tell me any more about the broadcast?

Current programme samples include

Copast, a David Attenborough programme, the programme about telecommunications in Shropshire, a couple of dramas and I think Cinderella, plus the ticking test.

Thanks

Greebo

24-07-2014

The UHD stream is currently showing rhythmic gymnastics - similar to BBC RB 2 though I don't know if it is the same cameras/angles etc as I only get a frame generated every 10 minutes unless I stop my media pc's normal monitoring scripts.

figrin_dan

24-07-2014

Apparently this is being shot at 100fps

http://www.bbc.co.uk/news/technology-28440076

I guess either they don't trust the broadcast system or most of the current 4k TVs will not accept that input. I would be interested to see this framerate as the Olympics 8k at 60fps was quite disappointing.

DragonQ

24-07-2014

2160p/100 is going to be so much better for almost all environments than 4320p/50, so hopefully they continue with this "high frame rate" tests. If current "4K" branded TVs don't work with >60 fps inputs then oh well; for those who bought into a technology that isn't even properly standardised yet, that's their problem.

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