[mythtv-users] Is satellite/cable HDTV possible w/ MythTV, or alternatives?
chrisribe at gmail.com
Mon Jan 16 04:05:20 UTC 2006
HDMI/DVI/Component in? I mean, seriously, is
it that hard (That's a serious question, not rhetorical)? As I
understand it, the signal is still a digital stream. Is the stream
not compressed, thus requiring the card to recompress it?
HDMI and DVI-D are copy protected. Component is impractically high
On 1/14/06, Michael T. Dean <mtdean at thirdcontact.com> wrote:
> Kichigai Mentat wrote:
> > As I understand it, FireWire has the same limitations. Generally, the
> > encrypted channels tend to be subscription channels, like HBO, SHO,
> > MAX, PayPerView, OnDemand stuff.
> And, typically even ones like Discovery HD...
> > It's supposed to be possible to rig
> > MythTV to record those channels from the analog out, though.
> But not in high def--only in NTSC.
> > You know, this makes me wonder, why the hell hasn't anyone developed
> > an HD card that accepts HDMI/DVI/Component in? I mean, seriously, is
> > it that hard (That's a serious question, not rhetorical)? As I
> > understand it, the signal is still a digital stream. Is the stream
> > not compressed, thus requiring the card to recompress it?
> Yep. And when you consider the fact that it takes a 3GHz processor to
> /decode/ a high-def stream in real time and that encoding is
> significantly more processor-intensive than decoding, you'll realize
> it's impossible to to real-time encoding of high-def streams with a
> general-purpose processor. Those that make the application-specific
> processors for high-def encoders are still able to sell them for a huge
> premium--and will probably try to make sure it stays that way until all
> the broadcasters have purchased their equipment (i.e. they don't want to
> price it such that consumers can afford the capability when broadcasters
> can/will/are being forced to buy even with prices extremely high).
> Then, factor in the content producers lobbying to prevent your getting a
> copy of anything digital and chances are it won't happen--at least not
> in a way that Linux users can enjoy.
> Note, though, that you can buy yourself a $10000+ high-def encoding
> system if you really want. As for me, though, I'll stick with my $165
> pcHDTV HD-3000's and free OTA channels.
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> mythtv-users at mythtv.org
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