[linux-dvb] Re: ATSC/DTV question

[Rod.Walsh@nokia.com]

ATSC uses VSB8 modulation so you'll need a new tuning driver (just the same
for DVB-T which uses OFDM+QAM/QPSK) - note DVB-S which uses QPSK.
(Practically this is compiling with new or improved frontend.c and .h)

Some of the DVB and ATSC SI tables are common (because they are both based
on MPEG TS) and some are different so here's another place for work (VDR
guys?).

I am not an ATSC expert so I can't tell you exactly how ATSC encapsulates
IP, but I guess you'll be needing modifications to demux.h and more
significant ones to demux.c (as you might expect).

Naturally, it would be great if the same API handled all DTV methods (anyone
interested in the Japanese system?) so thanks to those who want this
challenge.

Good luck!!!
Rod.

PS For those confused: ATSC is the North American 'equivalent' for DVB-T.
DVB-T is the terrestrial (i.e. standard antenna) version of DVB - the rest
you can work out for fun :)


> -----Original Message-----
> From: ext Ralph Metzler [mailto:rjkm@convergence.de]
> Sent: 19 January, 2001 4:43
> To: Keith Craigie
> Cc: linux-dvb@linuxtv.org
> Subject: [linux-dvb] ATSC/DTV question
> 
> 
> Keith Craigie writes:
>  > Hi there,
>  > 
>  > Now I know this is the DVB mailing-list ... but now that 
> ATSC is more
>  > available, is there plans to start a parallel project on 
> linuxtv for
>  > supporting the American standard?  Also, if anyone knows 
> any links to
>  > projects/mailing lists for ATSC, I'd appreciate their 
> passing them on.
> 
> According to the ATSC specs, it looks similar enough to DVB 
> that a lot of
> the DVB software can be reused for ATSC.
> There are some differences in the hardware as well as the 
> specifications 
> for service information. But I see no reason why the DVB API we are 
> using for our driver could not be used for ATSC as well. 
> I would welcome any discussion on this.
> 
> Ralph
> 
> 
> --- 
> Info:
> To unsubscribe send a mail to listar@linuxtv.org with 
> "unsubscribe linux-dvb" as subject.
> 


--- 
Info:
To unsubscribe send a mail to listar@linuxtv.org with "unsubscribe linux-dvb" as subject.