HDMI capture cards

[luttrell1962]

Newegg has a one available now, was wondering about support or future support.

http://www.newegg.com/Product/Product.as...-_-Product

I might want to get my cable upgraded, but need to see if I can find a solution for changing channels automatically somehow for recording.

[sub]

Unfortunately its unlikely it'll be supported in GB-PVR. This sort of "different" device could only really be supported if I had one, and may also require information from Aver, but I dont have any contacts in that company.

I'd also guess it wont do HDCP, so probably wouldnt work with the majority of sources that users want to record - HD set top cable/satellites boxes.

[whurlston]

Yeah, you're better off getting a Hauppauge HD-PVR and capturing component output. The AverMedia device will only capture 2 channel audio as well, not 5.1 like the HD-PVR.

[luttrell1962]

Thanks component is ok. The avercard comes with an adapter for comonent also.

[luttrell1962]

I looked at the hd-pvr it's a little on the expensive side for me, I would have to get the new cable box and see if I can program hd-pvr to change channels automatically. Do you need the DVB codec also for hd-pvr box.

So cable box's don't output hdmi it's a different format? I take tv's have this built into them. Probably more and more capture cards are going to come out that will work with cable boxes. They are still pretty new. I didn't see any really bad reviews on the avermedia card saying it didn't work with the cable box.

[JonnyCam]

You could get the device working with GBPVR (using graph recorder), and it does HDCP, but I just didn't like the MPEG2 picture I got out of it. (depending on how you provider chooses to

To get the HDMI & comonent displaying properly, you really have to open th aver software.

I did a small review here
http://forums.nextpvr.com/showthread.php?t=44993

The HDPVR does it as hardware encoding to H264, where the avermedia will captre MPEG2 @ 15Mbps / 60 fps (at about th same bitrates, so vastly superior pic on H264)
I couldn't get the captureHD to keep up with the frames on my dual core 2.6, so used it my quad core machine, and it was OK.
The mpeg recordings had a fuzz on top of them, could be the crappy avermedia codec.

So cable box's don't output hdmi it's a different format? I take tv's have this built into them. Probably more and more capture cards are going to come out that will work with cable boxes. They are still pretty new.

Maybe not, as if it's not HDCP compliant, then the output from your cable box will be downsampled to SD.
More of the content providers want their stuff locked down & protected, so you can't copy in HD from a STB, and if they have HDCP in place, I think it means it cannot capture HD content if it's got the no record flag set.

There is no HDCP for component, but again, if it's set with the no record flag, it will down sample on that output - and they can set macrovision protection on it
(I've seen people saying they can't record to their DVD recorders from HD boxes becasue of it - not sure if it affects tuner cards)

[sgilani]

So cable box's don't output hdmi it's a different format?

The cable boxes will implement a copy-protection mechanism called HDCP. (similar to macrovision back in the days of VHS cassette tapes). In a nutshell, the TV manufacturers have the necessary keys to decrypt the signal and display it. A capture card maker would not be given decryption keys, because their product could potentially be used to make illegal copies, etc.

The reason the Hauppauge HD-PVR is so desirable is because it uses the Component inputs, which are analog, and do not have the copy protection applied to the signal.

but now we're starting to see some devices that disable Component output on 1080p content (or degrade it to 480p or something) to deter this sort of thing.

[luttrell1962]

So if you have a big computer monitor with hdmi inputs you can't plug your cable box into it. I just read this article and it answers the above question
http://tv.about.com/od/hdtv/a/hdmidvihdcp.htm

It's a key that is sent to the tv that it responds back with the correct key. Then the cable box enables transmission. Sounds like software could break this.

This type of encryption is killing blu-ray sales. You see redbox's for dvd rentals but I have not seen any blue boxes. Many older blu ray players will not play new copies. My friend has to update his software all the time to play on his computer. Or just won't play at all and we have to decrypt the thing to the hard drive.

Somebody will produce a box to allow you to connect HDCP to your large monitor or older flat screen tv's. It would be unfair to make people buy a new flat screen tv. HDCP would lose in a court battle. From my point of view that is...

[luttrell1962]

Check this out
http://hd.engadget.com/2008/08/18/hdfury...-componen/

[JonnyCam]

This type of encryption is killing blu-ray sales

It's not a bluray encryption, but just HD.

The bluray encrypton is competely seperate from HDCP, and it's what you are talking about decrypting to harddrive. (anydvdHD etc)
The updating of this software to play on the PC is because the software does not brute force decrypt the disc, but uses keys which are what gets updated by the software (I think)

Many older blu ray players will not play new copies.

I don't think there are any older bluray drives which wouldn't have HDCP, and if they cannot decrypt the actual bluray protection, then a firmware update is needed (which the manufacturers seem pretty good in supplying quickly)


In reards to hacking HDCP - I'm sure it might hppen eventually, but I think the OS checks every second or something for the HDCP signal, and stops output if it's cut.