[mythtv-users] SiliconDust to Announce CableCard Product at CES[RUMOR]
robert.mcnamara at gmail.com
Thu Jan 7 22:31:54 UTC 2010
On Thu, Jan 7, 2010 at 2:28 PM, Tortise <tortise at paradise.net.nz> wrote:
> ----- Original Message ----- From: "Johnny" <jarpublic at gmail.com>
> To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> Sent: Friday, January 08, 2010 10:13 AM
> Subject: Re: [mythtv-users] SiliconDust to Announce CableCard Product at
>>> Blu-ray and Cablecard require a protected video
> path at the OS level to ensure that the from the source file/disc all
> the way to the display there is no way to get at an unencrypted
> version of the video. That is why there is no Blu-ray or Cablecard on
> OSX either. They didn't implement a protected video path that these
> content providers required. Now Windows (actually Vista or newer to be
> more accurate) is the only game in town for Blu-ray or Cablecard.
> I see this as relevant to Mythtv users with vdpau NVIDIA video cards - that
> all seem to be noted as HDCP compliant.
> The video card is also a part of that HDCP / DRM chain.
> What I think this means is that where digital content (no matter the source)
> includes ICT (Image constraint tokens) as best I can tell the NVIDIA card
> will cut down any HD content to SD when played out over analogue component.
> Otherwise it would not be HDCP compliant, would it?
> Without saying why, if that happened I would be annoyed. Anyone else?
Whoah, easy there. The ICT is not a part of HDCP, it's part of the
Blu-ray/HD-DVD AACS specification. Unless you have a licensed AACS
decrypter (none exists in linux, note the specific use of the word
*licensed*) and ACCS-encrypted content (read: not cable) you will
never see any resizing of your video.
So no, that's not not going to happen.
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