[linux-dvb] DVB-S2 and other (new) modulation standards

Andrew de Quincey adq_dvb at lidskialf.net
Wed Nov 23 19:07:15 CET 2005


On Wednesday 23 Nov 2005 18:04, Johannes Stezenbach wrote:
> On Wed, Nov 23, 2005, Patrick Boettcher wrote:
> > In DVB-H the TPS (known from DVB-T) is extended to provide information
> > about e.g. time-slicing as well. As the dvb_ofdm_parameters reflecting (a
> > part of) the TPS data maybe dvbh_parameters should reflect the TPS as
> > defined for DVB-H.
>
> Is there a use for the cell ids from TPS?
> Is anything else missing for DVB-T?
>
> If dvbh_parameters exceeds dvbt_parameters in size we
> cannot add it to FE_SET_FRONTEND without breaking
> binary compatibility.
>
> So if we need FE_SET_FRONTEND_NEW (or _EX or whatever) anyway, we could
> make a clean design with a "standard" and "flags" field (replacing
> FE_SET_STANDARD and FE_SET_FRONTEND_TUNE_MODE). And add some "u8
> reserved[32]" at the end for future extensions.
>
> What do you think?

Sounds good to me

Oh - I was updating libucsi to the latest DVB standards - I noticed the 
terrestrial transmission parameters SI descriptor has been expanded by adding 
a few fields... can't remember what they were in detail tho.



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