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Recording from Sky HD using game capturing device |
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#1 |
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Join Date: Jan 2010
Location: East Lothian
Posts: 3,233
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Recording from Sky HD using game capturing device
I'm not sure what section to put this thread under but here it goes.
Okay, so I got the Elgato Game Capture HD and a HDMI splitter (this one: http://www.amazon.co.uk/gp/product/B...?ie=UTF8&psc=1) so that I could record HD shows and movies from my Sky box to my computer. I set it up and tested it on my PS3 which also has HDCP and it bypassed it and I was able to record in HD. However, when I do the same for the Sky box, it comes up with the "This display does not support HDCP". I have it set up from the HDMI cable from the Sky box goes into the input of the splitter, then a HDMI cable runs from the output of the splitter to the input of the Elgato Game Capture, and a final HDMI cable runs from the output of the game capture to the TV. The game capture device is also attached to my laptop via USB to record. So have I set something up wrong? Or is this a splitter that just doesn't strip the HDCP from the Sky box even though it does it for the PS3? |
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#2 |
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Forum Member
Join Date: May 2005
Location: Redditch Worcs
Posts: 17,295
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Quote:
I'm not sure what section to put this thread under but here it goes.
Okay, so I got the Elgato Game Capture HD and a HDMI splitter (this one: http://www.amazon.co.uk/gp/product/B...?ie=UTF8&psc=1) so that I could record HD shows and movies from my Sky box to my computer. I set it up and tested it on my PS3 which also has HDCP and it bypassed it and I was able to record in HD. However, when I do the same for the Sky box, it comes up with the "This display does not support HDCP". I have it set up from the HDMI cable from the Sky box goes into the input of the splitter, then a HDMI cable runs from the output of the splitter to the input of the Elgato Game Capture, and a final HDMI cable runs from the output of the game capture to the TV. The game capture device is also attached to my laptop via USB to record. So have I set something up wrong? Or is this a splitter that just doesn't strip the HDCP from the Sky box even though it does it for the PS3? See http://www.gadgetreview.com/2012/07/...hd-review.html Quote:
And double yeah, you can’t record anything off of HDMI that has copyright coding on it, so drop that wish right now.
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#3 |
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Join Date: May 2004
Location: Reading
Posts: 27,918
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What happens if you plug the TV directly into one of the splitter outputs without the Elgato device connected? Do you get a picture on the TV from the Sky box?
If so try connecting the Elgato to the other splitter output leaving the TV connected to the splitter as well. See what happens then. |
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#4 |
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Join Date: Jan 2010
Location: East Lothian
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Quote:
What happens if you plug the TV directly into one of the splitter outputs without the Elgato device connected? Do you get a picture on the TV from the Sky box?
If so try connecting the Elgato to the other splitter output leaving the TV connected to the splitter as well. See what happens then. |
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#5 |
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Join Date: May 2005
Location: Redditch Worcs
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Quote:
I still get the same message "This display does not support HDCP". I suppose that must mean that the splitter doesn't actually strip the HDCP encryption then.
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#6 |
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Join Date: May 2004
Location: Reading
Posts: 27,918
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Quote:
I still get the same message "This display does not support HDCP". I suppose that must mean that the splitter doesn't actually strip the HDCP encryption then.
I assume the TV you are using works fine when connected directly to the Sky box via HDMI? Just that some of the reviews on the Amazon link you provided for the splitter seem to say it will work with a Sky box to split to two TVs. Which would imply the HDCP handshaking works under some situations. So might be worth power cycling everything just to be sure. But I suspect that if you try to connect the Elgato box up the HDCP handshaking will fail to that and the HDCP error message will return. |
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#7 |
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Join Date: May 2005
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Quote:
Did you power off the Sky box before you removed the Elgato box and power it back on when just the TV was connected? That should force the Sky box to redo the handshaking that takes place over HDMI. As should power cycling the splitter and possibly the TV.
I assume the TV you are using works fine when connected directly to the Sky box via HDMI? Just that some of the reviews on the Amazon link you provided for the splitter seem to say it will work with a Sky box to split to two TVs. Which would imply the HDCP handshaking works under some situations. So might be worth power cycling everything just to be sure. But I suspect that if you try to connect the Elgato box up the HDCP handshaking will fail to that and the HDCP error message will return. Quote:
Okay, so I got the Elgato Game Capture HD and a HDMI splitter (this one: http://www.amazon.co.uk/gp/product/B...?ie=UTF8&psc=1) so that I could record HD shows and movies from my Sky box to my computer.
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#8 |
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Join Date: Jan 2010
Location: East Lothian
Posts: 3,233
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Quote:
Did you power off the Sky box before you removed the Elgato box and power it back on when just the TV was connected? That should force the Sky box to redo the handshaking that takes place over HDMI. As should power cycling the splitter and possibly the TV.
I assume the TV you are using works fine when connected directly to the Sky box via HDMI? Just that some of the reviews on the Amazon link you provided for the splitter seem to say it will work with a Sky box to split to two TVs. Which would imply the HDCP handshaking works under some situations. So might be worth power cycling everything just to be sure. But I suspect that if you try to connect the Elgato box up the HDCP handshaking will fail to that and the HDCP error message will return. |
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#9 |
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Join Date: May 2005
Location: wisbech, cambs / norfolk
Posts: 3,834
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Quote:
The OP wants to record Sky HD content to his computer using the Elgato box as he does for gaming content. Not display the sky box output on a TV.
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#10 |
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Join Date: May 2004
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Quote:
By powering off, do you mean having the Sky box on standby or switching it off at the mains? At the moment I have only had it turned on from standby.
The only other thing to try is turn off Sky box, splitter and TV at the mains. Leave it a couple of minutes then power back up in the order TV, splitter then Sky box. If that fails to get any picture on the telly then you have to conclude the Sky box really does not want to play with the splitter. |
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#11 |
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Join Date: May 2004
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Quote:
The OP wants to record Sky HD content to his computer using the Elgato box as he does for gaming content. Not display the sky box output on a TV.
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#12 |
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Join Date: May 2006
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The HDMI splitter isn't designed to bypass HDCP, it's just that certain makes/models do. It may be that particular model has changed and that newer version can no longer do it.
I have an equivalent set-up of Virgin Media V+, different make/model splitter, and Hauppauge HD PVR2, and it all works. Although there was one occasion where it seemed to fail. It was just a matter of powering everything down(for a few mins) and making them "forget" what they had been attached to. No problems since. |
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#13 |
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Join Date: Oct 2003
Location: North Devon
Posts: 1,568
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I don't know of any splitter that will remove the hdcp. And the specs for the one that you've bought says "hdcp passthrough" so this doesn't either. And as the elgato doesn't either (as it's designed for capturing gameplay, not movies) an alternative set up will probably be required. You will probably need a hdmi to component converter and use the a/v in connector instead of the hdmi in. These converters range from the expensive hdfury 2 or 3 to one like this:
http://www.ebay.co.uk/itm/HDMI-To-RG...item3a8ac90256 which will be ok for sky as that is 1080i. You could opt to pay more for a 1080p if required. You will need the component adapter lead not the ps3 lead to use with the sky box. I presume the elgato came with it, or it's an optional extra: http://www.elgato.com/en/online-store - scroll down to component adapter |
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#14 |
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Join Date: May 2006
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The make/model of splitter that I bought a couple of months ago, was bought via Amazon UK but came from the US with a power supply with a 2 pin US plug(which I knew about). Maybe that is the difference. The same item now says that the power supply has an UK plug and is £1 dearer. Could be a risk of a newer version that doesn't strip HDCP.
I found out about it because people were complaining about X Box One and game capture HDMI passthrough. This splitter was mentioned as a solution. |
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#15 |
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Join Date: Oct 2003
Location: North Devon
Posts: 1,568
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Which splitter is that?
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#16 |
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Join Date: Jan 2010
Location: East Lothian
Posts: 3,233
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Quote:
The HDMI splitter isn't designed to bypass HDCP, it's just that certain makes/models do. It may be that particular model has changed and that newer version can no longer do it.
I have an equivalent set-up of Virgin Media V+, different make/model splitter, and Hauppauge HD PVR2, and it all works. Although there was one occasion where it seemed to fail. It was just a matter of powering everything down(for a few mins) and making them "forget" what they had been attached to. No problems since. Can't thank you and everyone else enough for all your help, very much appreciate it!
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#17 |
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Join Date: May 2006
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Quote:
Which splitter is that?
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#18 |
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Join Date: May 2005
Location: Redditch Worcs
Posts: 17,295
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Quote:
. A seemingly legitimate use, but do the HDMI/HDCP rules allow it?
It's legal to record HD broadcast content that is transmitted without encryption. For example both Freeview and sateliite FTA HD content can be recorded using something like a HTPC with a suitable card which are freely available in the UK. Sky premium content requiring a smart card is encrypted before transmission. Genuine Freesat+ and Freeview+ pvrs encrypt the unencrypted stream on copying to a hard disk. This is part of the Freesat/Freeview specification. It doesn't apply to generic fta kit. |
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#19 |
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Join Date: May 2004
Location: Reading
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I think the T&C of this sire don't allow that. Do what I did and research ie, Google, X Box and game capture device pass through problems. People want to use X Box or Playstation to view Online services such as NetFlix but have to fiddle around with the HDMI cables is they want to use a game capture device for just capturing gameplay. A seemingly legitimate use, but do the HDMI/HDCP rules allow it?
What would be against the rules is to use some device that removes the HDCP protection. After all if it was legitimate to remove HDCP protection in order to record the video stream what would be the point of having HDCP in the first place? |
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#20 |
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Join Date: May 2005
Location: Redditch Worcs
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I think the posters who talk about HDCP stripping don't understand what HDCP does. It's not an anticopy signal imposed on the output of the box in some way that can be removed. Like Cinavia copy protection on blu-rays for instance.
It's a two way data interchange that involves a High Definition source interrogating a destination device as to what it's capabilities are. Unless the kit identifies itself to the source that it's a display device and not a recorder the sending end kit withholds the video producing the blue/green screen on the destination. The same as if the HDCP handshake failed in some way. |
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#21 |
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Join Date: May 2004
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Quote:
I think the posters who talk about HDCP stripping don't understand what HDCP does. It's not an anticopy signal imposed on the output of the box in some way that can be removed. Like Cinavia copy protection on blu-rays for instance.
It's a two way data interchange that involves a High Definition source interrogating a destination device as to what it's capabilities are. Unless the kit identifies itself to the source that it's a display device and not a recorder the sending end kit withholds the video producing the blue/green screen on the destination. The same as if the HDCP handshake failed in some way. Quote:
Repeater: A repeater accepts content, decrypts it, then re-encrypts and retransmits the data. It may perform some signal processing, such as upconverting video into a higher-resolution format, or splitting out the audio portion of the signal. Repeaters have both HDMI inputs and outputs. Examples include home theater audio-visual receivers that separate and amplify the audio signal, while re-transmitting the video for display on a TV. A repeater could also simply send the input data stream to multiple outputs for simultaneous display on several screens.
http://www.digital-cp.com/files/docu...red_070808.pdfBut instead of re-encrypting the data it passes it on "in the clear" as it were. So the source device sees the splitter as a legitimate destination device and sends it encrypted data. The splitter then decrypts the data and spits the decrypted version out of it's outputs |
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#22 |
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Join Date: May 2006
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Quote:
They don't need to. Most HD games consoles do not force HDCP protection on gaming output it's entirely legal to record the content. What is illegal is defeating the hdcp protection to produce perfect copies of drm protected content, in this case Sky broadcast content.
It's legal to record HD broadcast content that is transmitted without encryption. For example both Freeview and sateliite FTA HD content can be recorded using something like a HTPC with a suitable card which are freely available in the UK. Sky premium content requiring a smart card is encrypted before transmission. Genuine Freesat+ and Freeview+ pvrs encrypt the unencrypted stream on copying to a hard disk. This is part of the Freesat/Freeview specification. It doesn't apply to generic fta kit. |
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#23 |
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Join Date: Jan 2010
Location: East Lothian
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Son of a camel, the splitter stopped working with the Sky box again. I switched off everything at the plugs but it didn't work this time round. Tried it again but to no avail.
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