[linux-dvb] Video and audio pid problems with dvb-t channels in Norway

Trygve Iversland trygve.iversland at gmail.com
Mon Oct 1 22:10:22 CEST 2007


I think that your problem is the fact that the channels are h.264 and 
not mpeg-2. Running scandvb -vv shows the following pids:
  PMT 0x010d for service 0x0066
  OTHER     : PID 0x020d TYPE 0x1b
  OTHER     : PID 0x02b4 TYPE 0x11
  TELETEXT  : PID 0x0241

I think they are not detected as Audio and Video streams because of the 
h.264 and aac content.  However i have tried converting them to decimal 
and including them in the channels.conf without luck in mplayer.

btw: I've managed tto view the the dvb-t h.264 content using svn vlc 
with svn ffmpeg and the patches described in 
http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-September/035837.html 
for paff-support

Trygve

Per Thomas Jahr skrev:
> Hi,
>
> Just recently the national dvb-t net with mpeg4 opened here in Norway,
> but the video and audio pid for me is always 0 after a scan.
>
> I have a Hauppauge WinTV-HVR-1110 card and a compatible antenna (Cinergy
> Antenna One) on Fedora 7 (kernel 2.6.22.5). I use w_scan to create the
> initial scan file (see below) and after that I use scandvb to create the
> channels.conf file (see below). It finds 41 services. 
>
> But, as I wrote, I can't get any video or audio pid in this file (except
> for two scrambled channels where I only get the audio pid). I've moved
> the antenna around the apartment (windows/balcony) without any success.
> The wiki says that the reason is probably weak signal, but AFAIK I have
> almost straight view to the antenna. Also the scan completes very
> quickly (like 10-15 seconds).
>
> Could it be that they don't transmit this info or maybe they use some
> new standard for dvb-t since they use mpeg4? Or am I doing something
> wrong (not unlikely :-))?
>
> Also, what tool can I use to find out if the signal is weak or not? 
>
>
> Initial scan file from w_scan
> -----------------------------
>
> # T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
> T 714000000 8MHz AUTO AUTO AUTO AUTO AUTO NONE
> T 722000000 8MHz 2/3 2/3 QAM64 8k 1/8 NONE
> T 770000000 8MHz 2/3 2/3 QAM64 8k 1/8 NONE
> T 794000000 8MHz 2/3 2/3 QAM64 8k 1/8 NONE
>
>
> channels.conf (scandvb initial_scan_file > channels.conf)
> ---------------------------------------------------------
> (see http://heim.ifi.uio.no/~perja/channels.conf)
>  
>
> Thanks
> Per Thomas Jahr
>   
>
>
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>
>   




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