Showview (1 Viewer)

[Bram]

I don't know if this is a possebility in all countries, but in the Netherlands a lot of Video- DVD- and harddriverecorders have the possebility to use 'Showview'. Which means that you can enter a numeric program code and the recorder will automaticly start recording when the program starts and stop recording when the program is finished (a sinal is send by the TV provider). I believe most Online TVguides also rovide this code, so it could automaticly be added to the EPG.
I had a scheduled recording for Formula 1 last weekend and realised that the race could take a little longer then scheduled in the TV guide. It would have seriously freaked me out if I would hav missed the last two rounds :evil:
I know I have some marging by setting the stop time to 10mins after the program should have ended. But this will not always be the safest way.

It would realy make the TV recording a lot more powerfull!

 

[mPod]

As an implementation of ShowView has to be licensed (Gemstar Europe charges for that), we won't be able to implement it.

http://www.europe.gemstartvguide.com/

 

[Bram]

Aha, thank you for the reply. That's a shame.

 

[hwahrmann]

Correct me, if i'm wrong.

i think what Bram was asking for is VPS (Video Programmed Signal).

Showview is more a system, where in TV Magazines you find some number besides the title of the movie, show, etc.
When you key in this number it'll program correctly the Channel, start and end time.
In case of MP we don't need Showview, because we have the EPG, where i can easily select a program to record.

What would be nice indeed is some sort of VPS.
VPS is transmitted in Row 16 of the picture.
In NextViewEPG there are some routines how to capture VPS signals.
Maybe someone from the devs, having more indepth knowledge than me, could speak to Tom Zörner, the author of the pogram.

 

[mPod]

Showview is more a system, where in TV Magazines you find some number besides the title of the movie, show, etc.
When you key in this number it'll program correctly the Channel, start and end time.

That's what he described... :wink:

 

[hwahrmann]

yes, but on the other hand he described, that he realised that the Grand Prix would take longer than scheduled in the TVGuide.
So with VPS turned on, the recording would have stopped when receiving the VPS signal.

 

[Bram]

That's what I thought. If the signal send is not encrypted and you don't have to hack anything to get it to work, how can it be licensed. I 'm not sure if it is not encrypted, it doesn't sound like it.
The newer version of VPS is called PDC (Programme Delivery Control)

More info...
http://625.uk.com/pdc/ (more about PDC)
http://de.wikipedia.org/wiki/Video_Program_System (in german about VPS)

In the Netherlands and UK PDC is used. In germany they use VPS.
I'm not sure if all channels support one of the methods.

 

[mPod]

I don't think that you'd be able to identify a VPS signal in an MPEG. This information gets lost when encoding inside the card (or the sw encoder), just like the teletext signal.
So the card would have to supply that signal (which it does for teletext, that's a standard in DirectShow), cause we can't get that information from the MPEG, as it's just not there anymore.
And I don't know any card/driver that would supply that information. At least not via a standard interface. So it looks very bad, we won't be able to implement it, I think.

If anyone knows more than I do (in case my theory about VPS & PVR cards is wrong), he's welcome to implement it in MP, of course.

 

[pierremenard]

I don't think that you'd be able to identify a VPS signal in an MPEG. This information gets lost when encoding inside the card (or the sw encoder), just like the teletext signal.
So the card would have to supply that signal (which it does for teletext, that's a standard in DirectShow), cause we can't get that information from the MPEG, as it's just not there anymore.
And I don't know any card/driver that would supply that information. At least not via a standard interface. So it looks very bad, we won't be able to implement it, I think.

If anyone knows more than I do (in case my theory about VPS & PVR cards is wrong), he's welcome to implement it in MP, of course.

But I think that in dvb-t and dvb-s stream the vps signal is still carried by the teletext. In this article about projectX (sorry, it's in italian) it'written that:

"I timecodes VPS (Video Program Service ) vengono pure fatti vedere, se la stazione TV li supporta (ORF usa VPS nel teletext digitale)."

"VPS timecodes are shown, if tv station supports them (ORF uses VPS in digital teletext)"

http://www.doom9.it/DigiTV/projectx-fullguide.htm

This software (http://www.coolstf.com/tsreader/) is able to look for vps in mpeg strem, so it is possible, I think.

I'm not a programmer at all (and I'll be always gratefull for MP programmers for being able to do what I would like to be able to do), so take this as newbbee suggestion...

Thanx

F.

 

[hwahrmann]

I'll have a look into it. Let's see, if it is possible,