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hardware PID filtering (30000 symbol rate)

Posted: Fri Nov 07, 2008 10:43 pm
by pausefisk
At my endless search for my HD channels on Thor 3/5 1W, i've googled alot and discovered that some of the HD channels recently changed frequency: http://www.telenorsbc.com/templates/Page.aspx?id=401

As i did a manual transponder scan and changed frequency, i got some of my missing channels back, but only those running at SR 25000. The other channels, are running at SR 30000, and manual scan doesnt help finding them. Info about those channels: http://www.telenorsbc.com/templates/Page.aspx?id=638

I searched in some forums from Digital Everywhere, and latest HW drivers for my FloppyDTV dvb-s2 card does support this: http://forum.digital-everywhere.com/vie ... f=14&t=205

But mostly the solutions around are for DVBViewer/FireDTV Viewer, and in this post: http://www.dvbviewer.info/forum/index.p ... opic=29335 some dude says: "Yes, hardware PID filtering is the solution and the DVBViewer has it as well."
I don't know what this is, but does ProgDVB support this? I know i can select 30000 as an option, but still i can only find HD channels running 25000.

ps! I cant seem to find any HD channels on the included (light version of DVBviewer) FireDTV Viewer either, though, i have not really spent any time testing.

Posted: Sun Nov 09, 2008 2:36 pm
by Juergen
Hardware PID / stream filtering is available from hardware decoding devices only, i.e. the SS1 Premium / Nexus.
Other devices provide the full transport stream, and the software filters out the components it needs.

Most DVB tuners I know are able to handle total data rates of up to around 45 Msps, so SR 30000 should be possible to handle. But some devices can auto detect the symbol rate, others need to get controlled by the software on this, which then would need to have suitable values in the transponder list or channel data base. So if tuning manually, you may have to set the SR as well. And perhaps also FEC...

Posted: Mon Nov 10, 2008 5:23 pm
by pausefisk
Hm, then please tell me what im doing wrong here, because i've edited the transponder list with the right settings, but channels only show up as datachannels etc. EPG shows correct, but no images.
Image

Posted: Mon Nov 10, 2008 8:45 pm
by Juergen
I don't know why, but it seems, you don't find all video IDs at scan time.

One possible reason might be a very slow system data stream on a transponder. Check ProgDVB options to prolong the timing.

Also try to add valid video IDs into channel properties. And audio too, if necessary.

Channel type TV / Radio / Data is derived from video / audio IDs existing or not only, as no flag is defined for this on DVB.