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Uber Geek

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# 17036 8-Nov-2007 20:52
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The three Wgtn TX's are now live for testing on CH48,50 and 59

I've managed to get my GB-PVR box to find them but have had no luck seeing any video yet despite having an MPEG4 decoder installed (CoreAVC)



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395 posts

Ultimate Geek


  # 94351 8-Nov-2007 21:12
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for those of us in Auckland, the auckland test feeds should start before the end of November

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Uber Geek

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  # 94365 8-Nov-2007 22:43
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I hope so. Sbiddle, have you tried

"DVBViewer"?


 
 
 
 


sub

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Ultimate Geek


  # 94393 9-Nov-2007 09:01
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The Swedish and UK MPEG4 transmissions work fine with GB-PVR, but you have to install the Cyberlink H.264 decoder to get it working.  NZ's MPEG4 transmissions should be exactly the same.

These h.264 directshow decoders arent as interchangeable as MPEG2 decoders, and need bit of specific work for each decoder your want to support in an application. I'll try to add support for other h.264 decoders in the near future.

If you do want to try other H.264 decoders, then you can edit the decoder name in the <PreferredH264VideoDecoder> setting in the config.xml file. Its default value is to use the Cyberlink H.264 decoder.

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  # 94400 9-Nov-2007 09:28
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Does that mean sbiddle, that you can test the dual functions of you HVR card?  I think there'd be a few people interested inthe outcome on the geekzone and gbpvr forums.

Anything interesting on the test channels or are they staic pictures?




Previously known as psycik

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  # 94408 9-Nov-2007 10:07
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davidcole: Does that mean sbiddle, that you can test the dual functions of you HVR card?  I think there'd be a few people interested inthe outcome on the geekzone and gbpvr forums.

Anything interesting on the test channels or are they staic pictures?


I got no picture just audio which was probably related to the h.264 codec I was trying to use (turned out to be ffdshow not coreavc) not working with GB-PVR.

It appears this morning that the transmissions are gone and yesterday was possibly just a small test. sub posted elsewhere this morning that testing is not due to begin in Wellington until December running a demo loop.

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Ultimate Geek


  # 94448 9-Nov-2007 13:40
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@sbiddle. From a Media Portal perspective, I need to load the actual frequencies for these channels. From what I can discover, they appear to be: 690000, 706000 and 778000 respectively. Are those frequencies correct?

Cheers Mike



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  # 94574 10-Nov-2007 14:16
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Just an update.

I appears the test signal isn't up 24/7 - I tried last night and it wasn't working.

Right now I have GB-PVR decoding the test channels! All that is required is PowerDVD Ultra with the H.264 codec installed and it works great. It's a bit jumpy on my system at present but I haven't looked any any of the finer details yet.

 
 
 
 


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  # 94627 11-Nov-2007 00:40
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have you tried playing the footage back with VLC? Might be less CPU intensive.



As I recall the GB-PVR devloper 'Sub' lives in Wellington, perhaps you might want to post something on their forum on how to get the video up and running with GB-PVR

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Uber Geek


  # 94630 11-Nov-2007 02:31
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sub:
These h.264 directshow decoders arent as interchangeable as MPEG2 decoders, and need bit of specific work for each decoder your want to support in an application. I'll try to add support for other h.264 decoders in the near future.

If you do want to try other H.264 decoders, then you can edit the decoder name in the <PreferredH264VideoDecoder> setting in the config.xml file. Its default value is to use the Cyberlink H.264 decoder.






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  # 94635 11-Nov-2007 07:56
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allstarnz: have you tried playing the footage back with VLC? Might be less CPU intensive.


As I recall the GB-PVR devloper 'Sub' lives in Wellington, perhaps you might want to post something on their forum on how to get the video up and running with GB-PVR


VLC actually chokes on the .ts files and won't play them (at least on my PVR I haven't tried on another machine)

sub is aware of the transmissions and has viewed them himself.
 
There actually isn't anything special that you need to do to view them. Providing you have PowerDVD Ultra installed you can scan for digital channels and things will work straight away. You can check if you have the CyberLink H.264 codec installed by running PowerDVD and seeing if there is a H.264 icon on the main screen of PowerDVD.

Currently there are a few short loops running, a SD channel showing netball and a few 1080i channels which look nice. After a couple of tweaks my playback is now as good as I will get on my motherboard. I purchased an Asus M2A-HDMI when they were brand new and they are a bit of a dog.. It does use a lot of CPU time and I do have an X2 4800 but obviously a video card with MPEG4 hardware should make things better. sub has just released a new version of GB-PVR today that does DXVA 2.0 which should speed things up with appropiate hardware.

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Uber Geek

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  # 94651 11-Nov-2007 10:50
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sbiddle:
allstarnz: have you tried playing the footage back with VLC? Might be less CPU intensive.


As I recall the GB-PVR devloper 'Sub' lives in Wellington, perhaps you might want to post something on their forum on how to get the video up and running with GB-PVR


VLC actually chokes on the .ts files and won't play them (at least on my PVR I haven't tried on another machine)

sub is aware of the transmissions and has viewed them himself.

There actually isn't anything special that you need to do to view them. Providing you have PowerDVD Ultra installed you can scan for digital channels and things will work straight away. You can check if you have the CyberLink H.264 codec installed by running PowerDVD and seeing if there is a H.264 icon on the main screen of PowerDVD.

Currently there are a few short loops running, a SD channel showing netball and a few 1080i channels which look nice. After a couple of tweaks my playback is now as good as I will get on my motherboard. I purchased an Asus M2A-HDMI when they were brand new and they are a bit of a dog.. It does use a lot of CPU time and I do have an X2 4800 but obviously a video card with MPEG4 hardware should make things better. sub has just released a new version of GB-PVR today that does DXVA 2.0 which should speed things up with appropiate hardware.


The problem is the stream is using PAFF interlacing which isn't currently implemented in x264 which VLC uses. Sadly it also isn't implemented in the FFMPEG h264 decoder.

The tvone stream looks a little bit odd to me so I have a feeling that they are just having a bit of a play with settings.

1. The original resolution is 1920x1080i with 1:1 pixel mapping. In Europe they tend to transmit 1440x1080 anamorphic 16:9.

2. TVNZ are planning on 720p50 rather than 1080i25

3. The audio is currently MPEG2 rather than AC3.

Steve




Generally known online as OpenMedia, now working for Red Hat APAC a Technology Evangelist and Product Manager. Still playing with MythTV and digital media on the side.


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Master Geek


  # 94683 11-Nov-2007 13:02
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I only seem to pick them up as Radio Stations - This is with WinTV2000, might try it on my myth pc soon.

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Uber Geek

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  # 94684 11-Nov-2007 13:07
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ofcourse wintv 2000 won't display picture :P It isn't able to handle the codec.

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Master Geek


  # 94720 11-Nov-2007 18:01
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I had never used the program before so I was unaware of that, anyway got it working fine now, really nice quality.
Some screenshots from my Laptop:
http://iforce.co.nz/i/c028b47231c169ffae89e928c2b94f17.jpg
http://iforce.co.nz/i/95f0d114e116389ed778216349312c46.jpg

395 posts

Ultimate Geek


  # 94724 11-Nov-2007 18:59
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what tuner were you using? + what frontend?

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