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4k Ultra HD smooth video playback

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Maybe a flash player issue?

My connection can't handle 4k videos. Also, for our ProBooks, only editing in 4k would matter, right?

Edit: downloaded a 4k video and it wen't smooth here.
 

RehabMan

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This is probably still very early stage for our pro books , any chance it's a driver related issue?

Or is our hd3000/4000 pretty much made obselete for 4k ultra hd playback.

editing will prob be a different ball park.

I'm confused. What is the point of watching a supposed 4k demo compressed down to play on internet bandwidth w/ (max) 1080p resolution on your 768p display?

Affordable 4k displays are a long way away, and general availability of 4k content is even further. We have barely realized true 1080p HD content, especially in the streaming world (BD is the only "true" HD content available, primarily because the bandwidth required to stream it over the internet just isn't there).
 
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I'm confused. What is the point of watching a supposed 4k demo compressed down to play on internet bandwidth w/ (max) 1080p resolution on your 768p display?

Affordable 4k displays are a long way away, and general availability of 4k content is even further. We have barely realized true 1080p HD content, especially in the streaming world (BD is the only "true" HD content available, primarily because the bandwidth required to stream it over the internet just isn't there).

Hi Rehabman, on youtube if you select 'original' instead of HD you will get the 4k ultra hd media instead of 1080p etc. I've tested it with the hdmi out display, the one on the left hand side of 4x30s, the graphics look fine, actually awesome more or less as you said about true 1080p hd or bd, but with all the extra depth of field and colour details, playback suffers from high lag. i'm guessing its a software thing, and hope it is.

the easy comparison for image detail is retina display images , on a non retina display.


maybe apple already has plans for quicktime update to include optimized 4k ultra hd for osx 10.8 and sl
 
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Maybe a flash player issue?

My connection can't handle 4k videos. Also, for our ProBooks, only editing in 4k would matter, right?

Edit: downloaded a 4k video and it wen't smooth here.

yes, editing would be great. at 4k maybe in theory the output file is about double the size of bd / true 1080p hd. maybe it might be a bit slower.

and for some background

[h=1]Qualcomm Snapdragon 800 4K Capture and Playback Demo[/h]

https://www.youtube.com/watch?v=v3OYSYBNeKE
 

RehabMan

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yes, editing would be great. at 4k maybe in theory the output file is about double the size of bd / true 1080p hd. maybe it might be a bit slower.

With the same encoder/quality settings it would be 4x the size of BD. But any online content is going to be compressed so much as to make this pointless. Online HD content is no where near BD quality even now. Most online content is delivered in a 4mbit/sec envelope. I've seen BD content at around 30mbit/sec.

Even more pointless when you consider that no one has a 4k display. The whole 4k thing is just a gimmick that the TV manufacturers hope convince us to buy $20,000 TVs again.
 
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This is probably still very early stage for our pro books , any chance it's a driver related issue?

Or is our hd3000/4000 pretty much made obselete for 4k ultra hd playback.

editing will prob be a different ball park.

Maybe you should try downloading a 4k video instead of streaming?

I think we're years off being able to stream 4k content to be honest.

EDIT: link was dead, searching for another
 
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With the same encoder/quality settings it would be 4x the size of BD. But any online content is going to be compressed so much as to make this pointless. Online HD content is no where near BD quality even now. Most online content is delivered in a 4mbit/sec envelope. I've seen BD content at around 30mbit/sec.

Even more pointless when you consider that no one has a 4k display. The whole 4k thing is just a gimmick that the TV manufacturers hope convince us to buy $20,000 TVs again.

I did read somewhere maybe it was tech crunch quite a while ago, about a japanese company that is still in research and development stage, some sort of codec for streaming, where it actually uses much less bandwidth than 1080p, and not sure about the other details. but there was also a youtube video showing a demo of it. as with anything like that, there's probably going to be some delay as they want to keep it top secret to protect their IP and negotiate licence fees etc.

pricing quoted seems in line with recent tv tech introductions.



Model Features: 4K Ultra HD, 4K X-Reality™ PRO Picture Engine, two 65W front-facing speakers, TRILUMINOS display, Dynamic Edge LED backlight, Motionflow™ XR 960, wireless smartphone mirroring technology, plus 4 pairs of 3D glasses
Accepting Pre-orders
Estimated ship date: 05/19/2013


Free 2-day shipping on orders over $50 (excluding TVs over 46").

$4999.99

http://store.sony.com/p/Sony-4K-TV-Ultra-HD/en/p/XBR55X900A



Seiki 50-inch 4K TV offers Ultra HD for a regular HD price -

http://techweird.com/2013/04/14/seiki-50-inch-4k-tv-offers-ultra-hd-for-a-regular-hd-price/

back back on track to the 4x30s, playback is smooth from file to hdmi out, (obviously some issues with streaming playback) and viewing quality seems on par or better than bd or 1080p true hd.

disclaimer not a hardcore audio video enthusiast, just pointing out observations so far. cheers
 

RehabMan

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I did read somewhere maybe it was tech crunch quite a while ago, about a japanese company that is still in research and development stage, some sort of codec for streaming, where it actually uses much less bandwidth than 1080p, and not sure about the other details. but there was also a youtube video showing a demo of it. as with anything like that, there's probably going to be some delay as they want to keep it top secret to protect their IP and negotiate licence fees etc.


Yes, new codecs will be required. This stuff is years off. By the time it is mainstream (if), we certainly won't be using our ProBooks.

Let's not even get started with the fact that at average viewing distances a 4k 50" TV just doesn't make any sense. The human eye cannot discern the detail in a 4k image over a 1080p image at that distance/size. Oh wait... I did get started on that :) OTOH, a 4k projector to a 120" screen is a different matter.

back back on track to the 4x30s, playback is smooth from file to hdmi out, (obviously some issues with streaming playback) and viewing quality seems on par or better than bd or 1080p true hd.

disclaimer not a hardcore audio video enthusiast, just pointing out observations so far. cheers

If you can download the video, you can look at (MediaInfo) it to see what the average bit rate is... There is no way to hide it (unless it was DRMed)... I couldn't find any good Chrome extensions for youtube downloads (google seems to be purging the ones that work).

Side note: I also laugh at those that purchase high-end audio playback systems ($20,000+) to play their horribly compressed mp3 content purchased from iTunes.
 
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Yes, new codecs will be required. This stuff is years off. By the time it is mainstream (if), we certainly won't be using our ProBooks.

Let's not even get started with the fact that at average viewing distances a 4k 50" TV just doesn't make any sense. The human eye cannot discern the detail in a 4k image over a 1080p image at that distance/size. Oh wait... I did get started on that :) OTOH, a 4k projector to a 120" screen is a different matter.



If you can download the video, you can look at (MediaInfo) it to see what the average bit rate is... There is no way to hide it (unless it was DRMed)... I couldn't find any good Chrome extensions for youtube downloads (google seems to be purging the ones that work).

Side note: I also laugh at those that purchase high-end audio playback systems ($20,000+) to play their horribly compressed mp3 content purchased from iTunes.

Download "Realplayer" it has a built in downloader and comes with a free converter too.
I'm in the process of downloading the file from youtube though it claims 4k it's 4:30 long and 792 mb.
That's wrong surely????

NOTE if using realplayer to download it will use the link of default quality but will create a new download when you change the quality on the youtube page.
 
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