[mythtv-users] Re: Answers about pcHDTV HD-3000 support in Myth,
QAM support, and more
Joseph A. Caputo
jcaputo1 at comcast.net
Tue Oct 19 19:38:42 UTC 2004
On Tuesday 19 October 2004 15:13, Grant Edwards wrote:
> On Tue, Oct 19, 2004 at 01:54:28PM -0400, David George wrote:
> > Yes, the ATSC stuff is already MPEG2 which is why the card outputs
> > MPEG2 for ATSC.
> If the card is outputting MPEG2, why does the web page say that
> it requires so much CPU to use it (1.2+ GHz)? Is doing
> programmed I/O? I can't believe it's not capable of bus-master
> DMA, but the web page never mentions it.
The CPU requirements are likely to do with the horsepower needed to
decode the received MPEG-2 stream. Actually, 1.2GHz is probably quite
underpowered for HD content.
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