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 Post subject: DVB-S Radio
PostPosted: Thu Nov 01, 2007 7:49 pm 
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Joined: Sat Oct 29, 2005 8:00 pm
Posts: 50
In NZ we have a number of radio stations that heve feeds to the satellite where I get my DVB-S Freeview TV channels. In knoppmyth (R5F27) the sound never comes up. I just get a black screen (which is OK as there is no video PID), but the lack of audio makes it worthless :-)

It works fine in mythbuntu 7.10 (used as a livecd with knoppmyth as the back end).

Does anyone know how I can fix this?

Nick


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 Post subject: Same here!
PostPosted: Sun Jul 26, 2009 3:03 pm 
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Joined: Sun Jul 26, 2009 1:57 pm
Posts: 4
I seem to have the very same problem. I am running Knoppmyth R5.5.

My Hardware is a PCChips Mobo with an AMD Geode NX1750 CPU and 768 MBytes of RAM.

The graphics card is an Nvidia FX5200 and the TV card is a Skystar 2.

Connected is a Switch with two LNBs (Astra 19° and Astra 28°). Everything else works fine, i.e. TV reception is no problem with both sats.

I also tried to play radio via mplayer (e.g. mplayer dvb://"BBC R2") and this also works without troubles. So I think it is not a problem with HW, signal strength or drivers.

But in mythtv I get a black screen and a partial lock message (with LmS). I believe this is a mythbackend problem, because in the mythbackend.log I get these weird errors:

Code:
2009-07-26 19:25:15.073 Using runtime prefix = /usr
2009-07-26 19:25:15.145 Empty LocalHostName.
2009-07-26 19:25:15.151 Using localhost value of mythtv
2009-07-26 19:25:16.406 New DB connection, total: 1
2009-07-26 19:25:16.630 Connected to database 'mythconverg' at host: localhost
2009-07-26 19:25:16.724 Closing DB connection named 'DBManager0'
2009-07-26 19:25:16.752 Connected to database 'mythconverg' at host: localhost
2009-07-26 19:25:16.831 New DB connection, total: 2
2009-07-26 19:25:16.840 Connected to database 'mythconverg' at host: localhost
2009-07-26 19:25:16.976 Current Schema Version: 1214
2009-07-26 19:25:18.147 [mpeg2video @ 0xb72c5e68]ac-tex damaged at 41 29
2009-07-26 19:25:18.150 [mpeg2video @ 0xb72c5e68]ac-tex damaged at 0 26
2009-07-26 19:25:18.151 [mpeg2video @ 0xb72c5e68]invalid mb type in I Frame at 0 27
2009-07-26 19:25:18.152 [mpeg2video @ 0xb72c5e68]ac-tex damaged at 0 28
2009-07-26 19:25:18.153 [mpeg2video @ 0xb72c5e68]ac-tex damaged at 0 29
2009-07-26 19:25:18.170 [mpeg2video @ 0xb72c5e68]ac-tex damaged at 0 30
2009-07-26 19:25:18.171 [mpeg2video @ 0xb72c5e68]invalid mb type in I Frame at 0 31
2009-07-26 19:25:18.172 [mpeg2video @ 0xb72c5e68]invalid mb type in I Frame at 0 32
2009-07-26 19:25:18.173 [mpeg2video @ 0xb72c5e68]ac-tex damaged at 0 33
2009-07-26 19:25:18.174 [mpeg2video @ 0xb72c5e68]invalid mb type in I Frame at 0 34
2009-07-26 19:25:18.175 [mpeg2video @ 0xb72c5e68]ac-tex damaged at 0 35
2009-07-26 19:25:18.176 [mpeg2video @ 0xb72c5e68]Warning MVs not available
2009-07-26 19:25:20.805 AFD: Opened codec 0x82d2790, id(MPEG2VIDEO) type(Video)
2009-07-26 19:25:20.806 AFD: codec MP3 has 2 channels
2009-07-26 19:25:20.807 AFD: Opened codec 0x82d2d40, id(MP3) type(Audio)
2009-07-26 19:25:21.293 [mpeg2video @ 0xb72c5e68]ac-tex damaged at 41 29
2009-07-26 19:25:21.294 [mpeg2video @ 0xb72c5e68]ac-tex damaged at 0 26
2009-07-26 19:25:21.295 [mpeg2video @ 0xb72c5e68]invalid mb type in I Frame at 0 27
2009-07-26 19:25:21.297 [mpeg2video @ 0xb72c5e68]ac-tex damaged at 0 28


It would seem that the backend somehow interprets the data as video stream.

Can anyone steer me towards how to narrow the problem down any further?


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 Post subject:
PostPosted: Sun Jul 26, 2009 4:52 pm 
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Joined: Sat Oct 29, 2005 8:00 pm
Posts: 50
Re you trying to play back the audio over spdif? My digital spdif system won't play it, I guess because of a funny bitrate or something. It plays over analogue just fine.


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 Post subject:
PostPosted: Mon Jul 27, 2009 1:06 am 
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Joined: Sun Jul 26, 2009 1:57 pm
Posts: 4
Ah that's a different problem then. I don't hear anything, even via analog out (but I do get sound during liveTV or video playback).

Didn't try SPDIF out.


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