[mythtv-users] Block HD Commercials?
Robert McNamara
robert.mcnamara at gmail.com
Wed Apr 15 16:04:04 UTC 2009
On Wed, Apr 15, 2009 at 8:57 AM, Kevin Ar18 <kevinar18 at hotmail.com> wrote:
>> What proprietary software can?
>>
>> This is a problem in general.
>>
>> The only really general purpose option to address this at the
>> moment is the Hauppauge 1212 which bypasses all of this by
>> recording from a non-encrypted analog HD signal.
> Which means you cannot do anything with most all HD signals because they
> have HDCP.
I think you have a bunch of information gleaned from various sources,
but I don't think you have it all straight. First off, HDCP exists
only on DVI or HDMI outputs. The Hauppauge HD-PVR captures from the
component outputs. This is an HD output which is un-HDCPable.
Secondly, you made a reference to downscaling-- this is called the
ICT, or Image Constraint Token. The ICT exists only in the Blu-ray
standard, not as a part of HDCP, nor as a part of any cable standard.
Thirdly, as was previously mentioned to you, the HDFury takes the HDMI
output, strips HDCP, and converts it into component output which is
capturable with the Hauppauge HD-PVR.
>
> Question is, why hasn't open source solve this? :) I remember reading
> before it became popular, that HDCP was actually gonna be quite easy to
> crack. Is it not possible for an open source solution to take in the
> encrypted signal and somehow decrypt it -- perhaps reconfiguring the way the
> device works so that it sets up a proper HDCP handshake?
Because open source isn't about circumventing any copy protection that
comes up, least of all when, as mentioned above, the problem is
already solved?
Robert
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