[streaming] Re: DVB-T streaming

[Damien LUCAS]

Hello,



Anne-Laure Sélignan wrote:
> I still have problems with DVB-T:
> I don't really know what are
> types mentionned in this file, or if i can get rid of
> parameters which are not needed by DVB-T like LNBID, SATID,
> TPID, etc...

With the current version of the lib, you need LNBID and SATID even for 
DVB-T. I hope than in the next libdvb versions, you won't need them any 
more.
TPID is important since it gives the mux on which the channel is located 
(a DVB-T multiplex is treated as a DVB-S transponder).

Transponder Type is given with:
         type=0 for FE_QPSK
         type=1 for FE_QAM
         type=2 for FE_OFDM

LNB.TYPE and CHANNEL.TYPE is not used for VLS. You can set it to any value.



> New PAT
>   transport_stream_id : 100
>   version_number      : 29
>     | program_number @ [NIT|PMT]_PID
>     |              0 @ 0x10 (16)
>     |              1 @ 0x1e (30)
>     |              7 @ 0x26 (38)
>     |              2 @ 0x2b (43)
>     |              5 @ 0x97 (151)
>     |              6 @ 0x841 (2113)
>     |              8 @ 0x20 (32)
>     |              3 @ 0x21 (33)
>   active              : 1


This is the PAT of stream. It means that you correctly locked on the 
signal. But, the problem comes from your dvbrc file.
With VideoLAN, you don't need to sepcify audio and video PID but just 
the Program Number. VLS then reads the PAT to find the PMT PID and reads 
the video and audio PIDs in the PMT.

Try with a dvbrc file like this:

  LNB ID 1 TYPE 2
   SAT ID 1 NAME "DVBT" [...]
    TRANSPONDER ID 1 SATID 1 [...]
     CHANNEL ID 1 SID 1 TPID 1 NAME "C2R_LACINQ" TYPE 0 VPID a0 APID 50
     CHANNEL ID 2 SID 2 TPID 1 NAME "C2R_VIVA"   TYPE 0 VPID ac APID ad

( As there is a bug in the uppercase/lowercase interpretation, you 
should rather use only uppercase with no special characters )


> By the way, I have another question, are TRP files
> readable/streamable with vls?

I don't konw TRP files. Could you be more precise on what those files are?

> And finally, I know it exists a vlc plugin for mozilla,
> where can we download it? 


The mozilla plugin only works under linux.

I don't think there is a RedHat package for this plugin you will have to 
compile it from vlc source.

You can find binaries for Debian/GNU and Mandrake:
http://www.videolan.org/vlc/download-mandrake.html
http://www.videolan.org/vlc/download-debian.html



Regards,

-- 
nitrox

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