cox cable 4K ??
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Not soon. I have heard of no programmers that plan 4K. Plus, are any of Cox's STBs 4K? [no]
Direct Tv has 4k programming for 2015 so I guess I will switch to Direct Tv ....they also have NFL sunday Ticket ...thats a big PLUS for me !!
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Direct Tv has 4k programming for 2015 so I guess I will switch to Direct Tv ....they also have NFL sunday Ticket ...thats a big PLUS for me !!
What channels will DirecTV have in 4K?
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Here's a publication specializing in UHDTV production/potential broadcasting. -- John
Unfortunately, there isn't that much 4K programming available to begin with. Netflix has a few series and a few movies. Amazon Prime seems to have the most 4K content out there.
All of DirecTV's OnDemand stuff (not their scheduled PPV movies and events) is delivered via the internet, not through their satellite signals.
Before switching service providers, weigh everything, not just who has the most 4K content.
All of DirecTV's OnDemand stuff (not their scheduled PPV movies and events) is delivered via the internet, not through their satellite signals.
Before switching service providers, weigh everything, not just who has the most 4K content.
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That's what I thought. Still in the "Discussions are under way with several broadcasters for final distribution of the series" stage.
Thanks.
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Not true for the 4K content, it is delivered via satellite signal, but the current receiver software can't grab a whole 4k signal right now, so they send via satellite the 4k video in a satellite download.
The directv Genie DVR has 5 independent tuners, rumor has it it will need 2 tuners simultaneously to watch live 4k once available due to its massive bandwidth.
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That's a very odd rumour. I'm happily tuning a DVB-S2 HEVC 4K test broadcast from Astra at 28.2E in the UK with TBS PCI-E and Technisat USB DVB-S2 transponders. Similarly my Sony UHD TV set, which has integrated DVB-S2 tuners, is also tuning the Astra UHD tests with no problems. That's live-to-air UHD (aka 4K) in HEVC.
Unless DirecTV are going to be using a new version of DVB-S2 like S2X then the bandwidth of the transponder is unlikely to change. The video data rate may well be higher than before but nothing mad that a current S2 demod and demux can't handle - unless the DirecTV stuff is very shonky.
I guess you could be in a situation where the Genie can't use all 5 tuners simultaneously to record because the disk bandwidth would be too high to record 5 x UHD streams rather than 5 x HD streams - so rather than it needing 2 tuners, it just stops one being used when another is tuning 4K to limit disk bandwidth?
For info - the BBC UHD tests (which were OTA using DVB-T2 rather than DVB-S2 over satellite) over the summer last year for the World Cup and Commonwealth Games used HEVC at 2160/59.94p and 2160/50p at around 38Mbs. The Astra test broadcasts are at around 20Mbs. I expect a formal service will be somewhere in between?
When H264 1080/50i broadcasts started in Europe around 2006, it wasn't uncommon for them to use 16-18Mbs for an HD signal - so the bandwidth used for UHD HEVC isn't that massive...
When did the Genie launch? It must have been recently if it included HEVC / H265 hardware decoding for 4K reception.
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I honestly don't know where that rumor started, or if it is true. It possibly could be a limitation of directv's SWM(single wire multiswitch) system which allows up to 13 tuners on a single cable.
The most current HR44 genie does not decoded H265, only H264
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Odd - AIUI SWM is similar to the European SCR system, which just transposes a specific transponder to a specific IF slot (one IF slot dedicated to each tuner - to avoid the issues with polarisation and band clash that would otherwise be the case with a conventional LNB) so shouldn't offer a bandwith limitation. The RF transponder config for UHD vs HD is the same - it demodulates to a transport stream in the same way. The difference is once the demodulated transport stream is processed - as it contains a UHD rather than HD or SD video stream, and is usually in HEVC/H265 rather than AVC/H264 or MPEG2/H262 format. The RF sent down the cable to the tuner is essentially the same - it's a transponder's worth of RF.
Nobody in their right mind would be doing UHD using H264 - and if the decoders weren't 4K compatible you'd be stuck with 1080i or 1080p (depending on H264 supported level). I very much doubt the HR44 would have the capability to stitch 4 x 1920x1080/60p H264 streams together, which is the other way UHD has been distributed via satellite (either for contribution or because there weren't suitable 2160p encoders available - which there now are)
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LOL! well directv is going to try apparently.
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Interesting. 3840x2160 @ 60p is H264 Level 5.2 and requires HDMI 2.0 for 2160/60p output (can be implemented within HDMI 1.4 bandwith but to do so requires 4:2:0 over HDMI which was added as part of the HDMI 2.0 spec. Some HDMI 1.4 hardware may be driver upgradeable - nVidia video cards are)
You could do 3840x2160 @ 30p or below with Level 5.1 and that can output in 4:2:2 (and 4:4:4?) via HDMI 1,4 outputs - but sport at 30p is horrid.
(Current UK HD receivers are Level 4.0 - so capable of 720/60p, 1080/60i or 1080/30p - though our satellite systems are all dual-tuner not more)
I wonder if they are going to do some insane hack which uses two tuners - though syncing them, merging them and outputting them would have required a lot of forward thinking.
Much more sensible to swap out receivers for H265 compatible models for those signing up for 4K content, to allow more efficient H265 encoding to be used.
It's interesting that European UHD sets are already shipping with integrated H265-compatible DVB-S2/DVB-T2 tuners. (And include conditional access - for some platform - and USB recording functionality)
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