[mythtv-users] Comcast HD & firewire

Jerry Rubinow jerrymr at gmail.com
Fri Nov 3 17:39:42 UTC 2006


On 11/3/06, Dylan Semler <dylan.semler at gmail.com> wrote:
>
> On 11/2/06, Dewey Smolka <dsmolka at gmail.com> wrote:
> >
> > Right now there's just no way to get the cable HD channels into Myth
> > while preserving HD if the company has set encryption on them.
> >
>
> I've been wondering about why there are no tuner cards with DVI or HDMI
> inputs for this reason.  It seems it wouldn't be too different than taking
> the mpeg stream from a co-ax cable.  Is there any major technical reason
> preventing the production of such cards?  I know that nvidia has some cards
> with VIVO, but I don't know if there is linux support for them nor if they
> work for all of the card's ports or just the s-video port.


Because taking the raw, uncoded HD video streams and converting them to mpeg
in real time is too CPU intensive, and dealing with raw unencoded HD video
without compressing it first is too bandwidth intensive.

-Jerry
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