COM8 running - has PIDs

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lotrjw

29-06-2014

Originally Posted by Greebo:
“Capturing the transport stream to a file with dvbsnoop is what I was already doing. I've now tried MPC-HC (sadly windows-only) and it does the best job I've seen so far- which is slightly odd since I believe it also uses ffmpeg for its H265/HEVC support.

As for jra's 23 year old TV- Freeview HD can still look very good via RGB scart on a CRT - yes, it's not actually HD, but it's about the best quality SD you'll ever get - none of the Freeview SD artefacts will be there.”

Thats very true!

Greebo

29-06-2014

Originally Posted by DragonQ:
“Care to share your DVBSnoop command line?”

Sure, it looks like:

Code:

tzap -c '/home/greebo/.tzap/channels.newmuxes.conf' -S 'TEST37' &
sleep 5
dvbsnoop -tsraw -s ts -b -n 805410 > com8.wh.30s.ts 
killall tzap

where channels.newmuxes.conf contains:

Code:

TEST31:554000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_256:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:101:102:4168
TEST36:594000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:101:102:4168
TEST37:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_256:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:101:102:4168
TEST49:698000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:101:102:4168
TEST50:706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:101:102:4168
TEST56:754000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:101:102:4168
TEST57:762000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:101:102:4168

So to explain, the .conf file contains a fake entry for an imaginary service called TEST37 on the correct frequency 602MHz from Winter Hill. The other entries are for other services that it was looking for at various times before they were broadcasting. With this card most of the settings don't matter, it can still tune if the FEC is wrong - and the PIDs are completely made up and don't matter either - it is just enough to make tzap tune to the correct mux.

So tzap tunes the mux, -S does it silently, and the & drops it into a background process. Then sleep for 5 seconds just to let the tuner stabilise.

Next the dvbsnoop command dumps 805410 raw packets into the .ts file - that's approx 30 seconds worth. Finally the killall command stops the tzap background process to release the tuner for future use.

edit: p.s. calling the output file com8.something.ts is a bad idea if it is going to go anywhere near windows- com8 is a reserved filename related to the good old serial ports. Call it com8_something.ts to be safe!

jimbo

30-06-2014

Has anything changed lately? What is currently on the COM8 mux today? Is it back to a testcard?

polarice

30-06-2014

Originally Posted by jimbo:
“Has anything changed lately? What is currently on the COM8 mux today? Is it back to a testcard?”

Currently a replay of Colombia vs Uruguay.

jra

30-06-2014

Originally Posted by lotrjw:
“I see well Im glad you saw the merits in getting a Freeview HD box even though you dont have a HD TV, many people wouldnt, but you could well end up missing out in the future without a receiver that can receive HD!”

I shall monitor the situation. I can't get the streaming services, even though the box claims it can.

kasg

30-06-2014

Originally Posted by jra:
“I can't get the streaming services, even though the box claims it can.”

What box is it?

jra

30-06-2014

Originally Posted by kasg:
“What box is it?”

This one.

http://ttselectrical.custhelp.com/ci...TBHDIS2010.pdf

chrisy

30-06-2014

Originally Posted by jra:
“This one.

http://ttselectrical.custhelp.com/ci...TBHDIS2010.pdf”

Without even clicking that link, I can tell you that the Technika STBHDIS2010 does not, never has and never will support the MHEG streaming channels.

You can get iPlayer on it (if the exact model doesn't end HY), but that's it.

jra

30-06-2014

Originally Posted by chrisy:
“Without even clicking that link, I can tell you that the Technika STBHDIS2010 does not, never has and never will support the MHEG streaming channels.

You can get iPlayer on it (if the exact model doesn't end HY), but that's it.”

Thanks. I'll check the iPlayer status. The streaming issue I confirmed with a Google.

jimbo

03-07-2014

Anything changed on COM8? What is the HEVC channel now showing?

Greebo

03-07-2014

Originally Posted by jimbo:
“Anything changed on COM8? What is the HEVC channel now showing?”

No, still seems to be repeating Colombia vs Uruguay. Of course they may be working on encoder settings etc but I wouldn't be able to detect that very easily. If you notice any significant changes at http://en.digitalbitrate.com/dtv.php...ng=en&mux=COM8 please let us know, else I'm not expecting anything new until tomorrow's France v Germany game.

Greebo

04-07-2014

Now showing a UHD BBC testcard - here for your viewing pleasure....

http://imgbox.com/QykkqXmv

jimbo

04-07-2014

Originally Posted by Greebo:
“Now showing a UHD BBC testcard - here for your viewing pleasure....

http://imgbox.com/QykkqXmv”

OOOOOOO!!!!

Like that.

Greebo

04-07-2014

Also note that the white triangle wave patterns on the four sides of the central HD panel are animated - hence the asymmetry in the frame I happen to have grabbed.

lotrjw

04-07-2014

Originally Posted by Greebo:
“Now showing a UHD BBC testcard - here for your viewing pleasure....

http://imgbox.com/QykkqXmv”

its good, but I dont get why the centre image is so small and why have they not filled the background with squares?

epsilon

04-07-2014

Originally Posted by lotrjw:
“its good, but I dont get why the centre image is so small and why have they not filled the background with squares?”

The picture of the young girl probably isn't available in a higher resolution. Viewers may notice a difference if she posed for an updated testcard pic.

http://media.tumblr.com/ffe731399cae...Ahr1qz4rgp.jpg

jimbo

05-07-2014

What is showing here now? When the football finished, did they just repeat it over and over or what?

Greebo

05-07-2014

Originally Posted by epsilon:
“The picture of the young girl probably isn't available in a higher resolution. Viewers may notice a difference if she posed for an updated testcard pic.

http://media.tumblr.com/ffe731399cae...Ahr1qz4rgp.jpg”

To be pedantic and ignore the humour in your post (sorry) - wrong - the slide was found and was rescanned at 5000x5000 pixels - see http://archive.today/si9re which is a record of the former page at http://www.barney-wol.net/video/test...testcardw.html

epsilon

05-07-2014

Originally Posted by Greebo:
“To be pedantic and ignore the humour in your post (sorry) - wrong - the slide was found and was rescanned at 5000x5000 pixels - see http://archive.today/si9re which is a record of the former page at http://www.barney-wol.net/video/test...testcardw.html”

Unfortunate then that they chose to use an HD sized test card, centred within the UHD frame size, rather than resizing the whole thing for UHD.

The post wasn't particularly meant to be humorous, just an indication that the girl from the original test card had, indeed, re-posed the photo.

http://usvsth3m.com/post/54431526225...bc-test-card-f

http://www.telegraph.co.uk/news/ukne...elevision.html

lotrjw

05-07-2014

Originally Posted by epsilon:
“Unfortunate then that they chose to use an HD sized test card, centred within the UHD frame size, rather than resizing the whole thing for UHD.

The post wasn't particularly meant to be humorous, just an indication that the girl from the original test card had, indeed, re-posed the photo.

http://usvsth3m.com/post/54431526225...bc-test-card-f

http://www.telegraph.co.uk/news/ukne...elevision.html”

lol yes I was actually thinking that a wholesale resize of the testcard to UHD would have been the better option! I would make one myself, but I cant source the center photo at higher resolution myself.
Plus getting the frequency gratings right for UHD is beyond my skills in image manipulation!
I could do most of the rest ok though.

the animated part would be something that they could easily add in over the static image

oh and I like you link about the re-posing the centre image!

lotrjw

05-07-2014

I have rescaled the UHD testcard as best as I could and I think the BBC could have produced something very similar if they had wanted:
http://imgbox.com/299LrkxB
It looks much more like the normal style now

OH and here is something between the two:
http://imgbox.com/UWzWMB7P

Everything Goes

05-07-2014

Originally Posted by lotrjw:
“I have rescaled the UHD testcard as best as I could and I think the BBC could have produced something very similar if they had wanted:
http://imgbox.com/299LrkxB
It looks much more like the normal style now

OH and here is something between the two:
http://imgbox.com/UWzWMB7P”

Good work

lotrjw

06-07-2014

Originally Posted by Everything Goes:
“Good work ”

Thanks Im glad someone likes my apx 8 hours worth in windows pant doing that! whist watching the tennis today.

Captin

06-07-2014

I've found Potplayer, the daum version plays fairly well, just not fast enough on my 3Ghz i7, I get ~35fps.

http://potplayer.daum.net

Best results were with a Samsung HU8500, plays a .ts file pretty much perfectly from usb hard drive.

lotrjw

06-07-2014

Ive added a letter to my altered version of the UHD test card meet test card U:
http://imgbox.com/POTl26DT

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