[linux-dvb] Re: backwards compatability -was- actual cvs broken?

Michael Krufky mkrufky at m1k.net
Thu Nov 3 03:12:18 CET 2005

Philip Prindeville wrote:

> Given that NTSC is going dark in the US in another 14 months (no idea
> if there are still any analog transmitters in Europe or not), perhaps we
> should move the glue logic into DVB, and make the analog capture
> functionality be the optional part?

Nah... It's not that simple... The functional dvb code for these "hybrid 
v4l/dvb" devices is nothing but the frontend module.  The cx88 / bt878 / 
saa7134 is the "bridge". The "glue code" is just a few lines of code 
that connect the frontend module to an input of the "bridge".  The way 
that it is currently set up is the way it has to be, unless somebody 
does a total re-write.  That ain't happening, at least not now.  The 
tuners, now that is a different story, and too much to explain right now.

It's not as easy to explain this stuff in English as it is to explain in 
C.  Take a look at the code.  It wouldnt make any sense to do what you 

...and NTSC is not "going dark".

IIRC, What Philip is talking about is an FCC regulation that all 
programming in the USA must ALSO have digital broadcast available, 
without any additional fee by a certain time, i guess 14 months from 
now.  Analog broadcast will no longer be *required* after that point, 
but nobody said that all analog broadcasting will be discontinued.  That 
just isnt practical -- The Television  / advertising industry simply 
cannot afford to lose a majority of its customer base due to all analog 
televisions going obsolete.  There *will* be overlap, and probably for a 
long time.

However, some channels WILL discontinue their analog broadcasts, one by one.

-Michael Krufky

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