[linux-dvb] S2 multiple streams and config file

Manu Abraham abraham.manu at gmail.com
Fri Nov 9 22:56:06 CET 2007


Artem Makhutov wrote:
> Hi,
> 
> On Sat, Nov 10, 2007 at 01:04:30AM +0400, Manu Abraham wrote:
>> [...]
>> I do propose a format such as adding 
>>
>> IS:0xff 
>>
>> where IS implies "Input Stream" and "0xff" defines the stream id. 
>>
>> to the end of the current config to denote Multiple streams and the 
>> relevant Stream identifier, and where the lack of which would mean a 
>> normal Single TS.
> 
> This sounds good.
> 
> What I am missing is an identifier for the modulation (DVB-S2, DVB-S
> and/or others), so you don't need to specify the modulation parameter
> for szap (szap -t 2) every time you want to tune to an other channel.

Ok, good point.

What about like this then:

nPSK:DELSYS:IS:0xff

Where "nPSK" represents whatever n=B/Q/8/16A/32A PSK, DELSYS=DSS/S/S2 
indicates that it is a DSS/DVB-S/DVB-S2 system type. Thereby all system specifics 
will be followed by eg: S2:*, thereby better readability.

Why nPSK should come ahead delivery system:

* delivery system is a subset of the modulation
* not all 8PSK modulation is DVB-S2.

Comments ?

Regards,
Manu




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