[linux-dvb] Re: DVB-T not working with 'old' driver

[Holger Waechtler <holger@convergence.de>]

Klaus Schmidinger wrote:
> Holger Waechtler wrote:
> 
>>Tomi Ollila wrote:
>>
>>>Friday Sep 27 09:45:17 +0300 2002 Lauri Tischler <lauri.tischler@efore.fi> wrote:
>>>
>>>
>>>>Tomi Ollila wrote:
>>>>
>>>>
>>>>>It should not be hard to find the exact source code lines where those
>>>>>are defined (seems to be in dvb.c)...  Anyway, it is the application that
>>>>>sets those values too (i.e.. you need to patch vdr/dvbstream/etc. (also) to
>>>>>use correct values).
>>>>
>>>>Yep, I think I found it, in dvbapi.c the parameter guard-interval is 1_32,
>>>>it should be 1_8, qam and trans.mode were correct.
>>>
>>>
>>>Hmm, that is true. dvb_defaults.h dvbstream/dvbtune/... has that correct
>>>in FINLAND settings.
>>>
>>>
>>>
>>>>I got following information from Finnish network provider:
>>>>
>>>>Network Name          :[0]Digita Finland
>>>>Transport Stream ID   : 0x1001
>>>>Original Network ID   : 0x20F6
>>>>Bandwidth             : 8MHz
>>>>Constellation         : 64 QAM
>>>>Hierarchy Information : Non Hierarchical
>>>>Code Rate             : 2/3
>>>>Guard Interval                : 1/8
>>>>Transmission Mode     : 8K
>>>>
>>>>Maybe this info should be added to drivers and vdr as conditional code
>>>>for each country.
>>>
>>>
>>>I second that. The way dvbtools does it could be good candidate (If I can
>>>promote my own suggestion ;)
>>>
>>>Even though the final responsibility of setting those values correctly
>>>is the  application, since the driver also sets those (for defaults),
>>>there should be good mechanism to flexible choose country/area/region
>>>defaults.
>>
>>No, it's nowhere specified that the driver has to set any default
>>values. It's up to the application to set the correct tuning parameters.
>>Please fix vdr and dvbstream to use complete channel lists with all
>>tuning parameters.
> 
> 
> VDR will soon use the full DVB-T and DVB-C set of parameters for tuning.

great! let's hope dvbstream will follow...

Holger



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