[linux-dvb] anybody interested in DVB-T/-H modulators?

Manu Abraham manu at kromtek.com
Sat Jun 18 17:05:33 CEST 2005


Holger Wächtler wrote:
> 
> Am 18.06.2005 um 12:19 schrieb Manu Abraham:
> 
>> Holger Wächtler wrote:
>>
>>> http://fabrice.bellard.free.fr/dvbt/
>>> Fabrice claims that PAL modulation is possible, too - he was just  
>>> too  lazy to implement it...
>>>
>>
>> Sounds interesting, require a display adapter that supports those  
>> high res ..
>>
>> Took a look at it some 3 days back, but the sorce doesn't seem to  be 
>> open though.. A patched version of ffmpeg is required ..
> 
> :) he wrote that he will open the source if enough people show  interest 
> and contact him by mail -- so feel free to bug him!
> 
> For the meantime it's probably a nice challenge for most of us to  
> follow the approach and write a bitmap generator... maybe it's even  one 
> day possible to do the modulation in realtime, in some cases it  might 
> be possible to let the GPU do some work...
> 
> In any case the approach to use the video DAC for direct HF  conversion 
> is very interesting. It would be nice if somebody spends  some time to 
> do further research in this direction.
> 
> Combined with the Oscar's multiplexer code and Marek's DSMCC/MHP  
> carousel (both GPL'd on linuxtv.org) one day a complete playout  center 
> in software may become true. Assuming that it is possible to  do the 
> modulation in realtime on normal hardware in not too far future.
> 

With a little bit of work in place many cool things can be worked out..


Manu





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