[mythtv-users] Re: DViCO FusionHDTV DVB (ATSC/QAM) and MythTV

Boleslaw Ciesielski bolek-mythtv at curl.com
Wed Jul 27 12:15:51 EDT 2005

Brandon Beattie wrote:
>>The Air2PC can send only the requested program stream instead of the
>>full transport stream, reducing the data sent over the PCI bus and
>>somewhat reducing the CPU overhead.  They do both ATSC and QAM.
> If that's true, then that's a good reason to avoid the air2pc cards.  I 
> know that pchdtv is funding some of the MythTV devs to improve various
> areas, including some that aren't directly related to just the pcHDTV
> cards.  One feature on their list to be done is the ability to save off 
> separate streams from one channel, so for me that means that I could
> record all 5 different PBS programs at once with one pcHDTV card.
> I'd much rather have this functionality than saving 2% CPU usage and a 
> little IO.  Also, when recording 4 shows at once now with 4 cards my
> AMD 2600 it is 97% idle, so a couple extra % is not going to make any
> difference in performance.

But the Air2PC feature mentioned above (the hardware filtering of PIDs) 
is optional. One can still record entire transport stream if desired.

Having said that, I don't think this is an important feature and I 
wouldn't base purchase decisions on that.


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