Re: [mythtv-users] Is satellite/cable HDTV possible w/ MythTV, or alternatives?
Have you ever tried hooking a cable box up to a computer monitor with a DVI cable? Did it work? No? That's the copy protection in action. On 1/15/06, Robert Johnston <[EMAIL PROTECTED]> wrote: On 1/15/06, Chris Ribe <[EMAIL PROTECTED]> wrote:> > 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 > bandwidth analog.DVI-D and HDMI are *NOT* copy protected. Yet. They are too high abandwidth to cope with encoding at the moment, however. HDCP is the(Proposed) system for copy-protecting content over a HDMI link, but as of yet there is no manufacturer who has added support (As to do sowould break support for current equipment), and Windows Vista is theonly software system known of so far to support it, which is not evenout of beta yet. --Robert "Anaerin" Johnston___mythtv-users mailing listmythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Is satellite/cable HDTV possible w/ MythTV, or alternatives?
On 1/15/06, Chris Ribe <[EMAIL PROTECTED]> wrote: > > 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 > bandwidth analog. DVI-D and HDMI are *NOT* copy protected. Yet. They are too high a bandwidth to cope with encoding at the moment, however. HDCP is the (Proposed) system for copy-protecting content over a HDMI link, but as of yet there is no manufacturer who has added support (As to do so would break support for current equipment), and Windows Vista is the only software system known of so far to support it, which is not even out of beta yet. -- Robert "Anaerin" Johnston ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Is satellite/cable HDTV possible w/ MythTV, or alternatives?
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 bandwidth analog. On 1/14/06, Michael T. Dean <[EMAIL PROTECTED]> 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 issignificantly more processor-intensive than decoding, you'll realize it's impossible to to real-time encoding of high-def streams with ageneral-purpose processor. Those that make the application-specificprocessors 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 allthe broadcasters have purchased their equipment (i.e. they don't want toprice 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 acopy 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 $1+ high-def encodingsystem if you really want. As for me, though, I'll stick with my $165pcHDTV HD-3000's and free OTA channels. Mike___mythtv-users mailing listmythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Is satellite/cable HDTV possible w/ MythTV, or alternatives?
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 $1+ 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. Mike ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Is satellite/cable HDTV possible w/ MythTV, or alternatives?
I was at CES (Consumer Electronics Show) last week and gathered a bit of information on CableCard. Basically, it allows you to record digital cable (read: premium and HD) content without having to have a digital cable box and IR blaster. You just stick one of these things in your computer, buy a decoder card from your cable provider, and it works. In theory. The reality is that these CableCard devices will only be able through OEMs so don't expect to be buying one from NewEgg any time soon. You might be able to find one on Ebay when they become widespread but don't count on it. It also appears that the hardware will remain closed and undocumented, further hindering Linux adoption. AFAIK, Microsoft Vista Media Center will be the only way to make use of these cards. Finally, not all cable providers have signed on to support CableCard and the ones that have are planning to charge a higher monthly fee than a normal digital cable box. The only two providers that I know for sure are going to be providing CableCard support are DirecTV and Comcast. That being said, CableCard isn't a viable option for MythTV. If over-the-air HDTV isn't an alternative either, your choices are fairly limited. pcHDTV sells the HD-3000 card that does to cable HDTV and is supported by MythTV but there appear to be some limitations on the content available to you (other than the fact that most of it is encrypted). I don't know much about the pcHDTV cards but I think that's probably your best bet. On 1/14/06, Reshat Sabiq <[EMAIL PROTECTED]> wrote: > I assume no, because the HDTV cards for PCs only do over-the-air. But > i'd appreciate your feedback. > > Basically, i'm considering buying an HDTV monitor, and i have a strong > feeling that not buying a tuner, and probably also a DVR to go w/ it > (since i'm likely to need to record things for later viewing), is not an > option. > > Thanks. > > > ___ > mythtv-users mailing list > mythtv-users@mythtv.org > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > > > -- Jeremy Grosser Student Rochester Institute of Technology ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Is satellite/cable HDTV possible w/ MythTV, or alternatives?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Jan 14, 2006, at 14.08, Robert Johnston wrote: > On 1/14/06, Reshat Sabiq <[EMAIL PROTECTED]> wrote: >> I assume no, because the HDTV cards for PCs only do over-the-air. But >> i'd appreciate your feedback. >> >> Basically, i'm considering buying an HDTV monitor, and i have a >> strong >> feeling that not buying a tuner, and probably also a DVR to go w/ it >> (since i'm likely to need to record things for later viewing), is >> not an >> option. Well, you sure can buy an HDTV without a DVR. Of course, the trick is finding a DVR that supports HDTV. I know that ComCast and most of the other cable companies sell HD DVRs, but they are generally not preferred over MythTV. > > Cable is possible as some cards (like the PCHDTV and Fusion cards) > support QAM256, which is most commonly used for digital cable. Isn't it possible to do HD over FireWire? Wasn't there some sort of thing that Congress passed that required all HD cable boxes to have an enabled FireWire port? > However, they don't support encryption, so you will only be able to > get the channels broadcast "In the clear". 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. It's supposed to be possible to rig MythTV to record those channels from the analog out, though. 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? > -- > Robert "Anaerin" Johnston > ___ > mythtv-users mailing list > mythtv-users@mythtv.org > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.1 (Darwin) iD8DBQFDyXKJwAwn3hu8KxcRAjcBAJ9nQ0TVQ4f0Br8+jzBOoH2tS8yl5QCghnE3 47O1mMkvM+urKB2sg7CIk0o= =PTEh -END PGP SIGNATURE- ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Is satellite/cable HDTV possible w/ MythTV, or alternatives?
On 1/14/06, Reshat Sabiq <[EMAIL PROTECTED]> wrote: > I assume no, because the HDTV cards for PCs only do over-the-air. But > i'd appreciate your feedback. > > Basically, i'm considering buying an HDTV monitor, and i have a strong > feeling that not buying a tuner, and probably also a DVR to go w/ it > (since i'm likely to need to record things for later viewing), is not an > option. Cable is possible as some cards (like the PCHDTV and Fusion cards) support QAM256, which is most commonly used for digital cable. However, they don't support encryption, so you will only be able to get the channels broadcast "In the clear". -- Robert "Anaerin" Johnston ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Is satellite/cable HDTV possible w/ MythTV, or alternatives?
Reshat Sabiq wrote: I assume no, because the HDTV cards for PCs only do over-the-air. But i'd appreciate your feedback. Basically, i'm considering buying an HDTV monitor, and i have a strong feeling that not buying a tuner, and probably also a DVR to go w/ it (since i'm likely to need to record things for later viewing), is not an option. Thanks. Curious if KWorld at http://www.newegg.com/Product/ProductList.asp?submit=PROPERTY&SubCategory=47&manufactory=0&bop=and&description=HDTV&Order=rating would do the trick. smime.p7s Description: S/MIME Cryptographic Signature ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
[mythtv-users] Is satellite/cable HDTV possible w/ MythTV, or alternatives?
I assume no, because the HDTV cards for PCs only do over-the-air. But i'd appreciate your feedback. Basically, i'm considering buying an HDTV monitor, and i have a strong feeling that not buying a tuner, and probably also a DVR to go w/ it (since i'm likely to need to record things for later viewing), is not an option. Thanks. smime.p7s Description: S/MIME Cryptographic Signature ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
