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Author Topic: DVB-S feedback  (Read 1611 times)

audioriver

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DVB-S feedback
« on: January 28, 2012, 04:55:43 am »

Thanks a lot for DVB-S support, most appreciated. Channel scan completes almost immediately without finding any channels. Using the Hauppauge HVR-4000 multituner. Tv log here, I couldn't include it in the message.
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Yaobing

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Re: DVB-S feedback
« Reply #1 on: January 28, 2012, 02:32:19 pm »

Thanks for the feedback.

It appears that we failed to read satellite transponder file.  I will try figuring it out on Monday.

Can you check that this file exists and can be opened:

C:\Program Files (x86)\J River\Media Center 17\TV\DVBS\13.0°E Hot Bird 6,8,9.xml
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audioriver

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Re: DVB-S feedback
« Reply #2 on: January 28, 2012, 02:38:54 pm »

Yes, it's there and opens fine.
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Trond-Eirik

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DVB-S feedback 2
« Reply #3 on: January 28, 2012, 04:29:28 pm »

Hi

I have tested DVB's as well.
Hardware: Digital Devices Cinet C/T card
OS: Windows 7 x64
Digital Devices supplies a DVB-S driver mode for their DVB-C/T cards. I have been using it for Media Center and it is confirmed to work nicely.
What is done in Media Center is to create a transcoder file and use that. I have created that transcoder file with the values that should be used for Canal Digital in Norway (my provider).
The file is attached.

I'm experiences two syndromes.
1) If I try to scan for channels the scan is initiated and then is left with status "Starting channel scan...", and then nothing happends.
2) If I go into TV-options and selects "Configure" for the device I get a message box saying "Failed to initialize TV tuner devide".

To ensure that the device is not in use by any other I have also disabled the windows media center services so that no background servie or anything else in Win Media Center is in use.
Any suggestion?

You may have a look at the following files:
Transponder file (contains transponder codes for Canal Digital in norway)
Log file
User manual for using Cinet CT as DVB-S tuner in media center.

https://skydrive.live.com/redir.aspx?cid=db1e11b2cf05fb28&resid=DB1E11B2CF05FB28!124&parid=root

Some more info:
- If I first access TV-options and then press "Configure" (after a reboot), I get access to the configuration dialog
- If I first try to do a scan and afterwards access TV-options and press "Configure" I get the "Failed to initialize TV tuner devide".
  Seems as if the scan prosess somehow locks up the tuner card.

Another interesting observation is that if I disable the CAM so that it is not used, the Scan success and report that it is Done.
In this case I get the same behaviour that audioriver is reporting.

Seems to some issue rearding reading of informasjon from the CAM and some issue reading the tranponder file.

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Yaobing

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Re: DVB-S feedback
« Reply #4 on: January 28, 2012, 06:58:08 pm »

One thing I can think of about Configure window is that I forgot to modify it to include DVB-S for network type.  So if you run Configure, you will put the device in either ATSC or DVB-T.  That could be the cause of some of the problems.
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Yaobing Deng, JRiver Media Center

Yaobing

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Re: DVB-S feedback
« Reply #5 on: January 28, 2012, 07:17:59 pm »

The Norway parameters you put in the xml file look more like a DVB-C parameters than DVB-S ones.  Are you supposed to scan the channels as if they were DVB-C channels because your device is DVB-C?  If so, maybe you will have a better luck when I finish DVB-C support.

Also, did you put the parameters in the file correctly?  The values for Polarisation (QAM256, QAM64 etc.) are more like Modulation instead.  Polarisation should have four values - "V" for Linear Vertical, "H" for Linear Horizontal, "R" for Circular Right, and "L" for Circular Left.  Also, MC will recognize "256QAM" instead of "QAM256".  Maybe you can try switching those.

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Yaobing Deng, JRiver Media Center

Trond-Eirik

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Re: DVB-S feedback
« Reply #6 on: January 29, 2012, 02:50:18 am »

Hi

The device is a DVB T/C combo. My tv-network is DVB-C.
Windows Media Center (WMC) does not support DVB C. Digital Devices (the manufacture) has supplies a native DVB-S driver that can be used with WMC, so it should work but I do not know how the WMC transponder file look.
I will try with other values in the file as you suggested. I also have this input from Digital Devices that I think will help me (polarization is explained in the bottom of the file):
http://support.digital-devices.de/knowledgebase.php?article=64
If anyone know where to find the transponder files for WMC that would problably help me.

Is support for DVB-C planned anytime soon?
I have been waiting for DVB-C support since 2009 so I would rather try to make DVB-S work than wait another couple of years or so on DVB-C support;-)


A couple of off-topic notes:
- Currently lack of TV-support is for me the one single thing that prevents me from permanently switching from WMC to MC.
- My tv-network provider supplies to types of channels. TV-channels and Radio-channels.
To be able to get Radio-channels in a "Radio UI" instead of along with TV-programs would have been really nice. I would expect that all the hard stuff goes into what you are doing now (or have been doing), and that this is just about adding a Radio UI on top of it.
I cannot remember to have seen a Radio UI in MC, so maybe that is more of an input as one of many sources to consider when/if you add Radio support to MC :-)
- In general I'm really impressed with the current versjon if MC.


I'll try to modify the file and do some more testing later today or tomorrow.

Regards, TEK
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