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13th November 2009, 15:13 | #1 | Link |
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Youtube is now accepting 1080P files
Youtube just announced on their blog that they will be encoding 1080P files for the viewer to watch on Youtube.
http://youtube-global.blogspot.com/2...o-youtube.html Here is a link to a (poor) sample video: http://www.youtube.com/watch?v=DUM1284TqFc&fmt=37 Here is a sample from a 21MP 6k time lapse, downsampled to 1080P sunset. http://www.youtube.com/watch?v=9iiwWqoqgI4&fmt=37 Quality isn't so great. Originals: http://alexandermejia.net/1080test/1080sunset_m2.mp4 (mp4 uploaded to youtube) http://alexandermejia.net/1080test/screenshot.png (Screenshot of original) http://alexandermejia.net/1080test/1080sunset_m2.avi (Black-magic Uncompressed 4:2:2 AVI) Last edited by demistate; 13th November 2009 at 18:37. |
13th November 2009, 16:08 | #3 | Link |
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It is trash,Realtime stream 1080P is infeasible,on the other hand,Flash is rubbish, expect native HTML5 high performance <video> tag, e.g. chrome brower .
Last edited by dvy; 13th November 2009 at 16:15. |
13th November 2009, 18:19 | #4 | Link |
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Good thing they're not actually doing real-time streaming, but rather progressive download.So, since this is progressive download--just like Flash, except unsupported by 90% of browsers?
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13th November 2009, 18:21 | #5 | Link |
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http://www.youtube.com/watch?v=JGe8DuCy5PU&fmt=37
A better sample for 1080p, |
13th November 2009, 18:39 | #6 | Link | |
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13th November 2009, 19:29 | #7 | Link | |
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FLASH is NON-IE browser plug-in or IE ActiveX control ,which have performance penality,and FLASH itself is low performance ,native HTML5 <video> tag is good stuff instead of FLASH for browser high performance movie playback. |
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13th November 2009, 19:31 | #8 | Link | ||
Derek Prestegard IRL
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Re: the youtube quality - meh. It's okay, but I doubt they're using bleeding edge x264 goodness. I could be wrong. I'm too lazy to bother trying, but has anyone downloaded one of these and grep'd through the file to see if they left the user data in the file, so we can at least peep on the encoding settings? ~MiSfit
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These are all my personal statements, not those of my employer :) Last edited by Blue_MiSfit; 13th November 2009 at 19:33. |
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13th November 2009, 20:29 | #9 | Link | |
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What I mean is that some cameras use pixel shifting or ailasing to create the false impression of resolution. If I were to shoot 1080P video on the same 5d Mark II , the resolution is much less than if I were to shoot an image sequence at the native sensor size, and downsample it to 1920x1080. See these links for more reference. Not all 1920x1080P cameras resolve the same resolution. http://www.dvxuser.com/articles/article.php/20 http://www.dvxuser.com/V6/showthread.php?t=187008 |
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17th November 2009, 10:23 | #12 | Link |
Derek Prestegard IRL
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Actually streaming 1080p isn't that hard, provided your CDN and your customers have enough bandwidth. It's quite feasible these days. Not cheap, though
~MiSfit
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17th November 2009, 14:08 | #15 | Link | |
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You'd have to be fairly close for a consistent 50ms or less. |
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17th November 2009, 14:09 | #16 | Link | |
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Follow x264 development progress | akupenguin quotes | x264 git status ffmpeg and x264-related consulting/coding contracts | Doom10 Last edited by Dark Shikari; 17th November 2009 at 14:11. |
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17th November 2009, 21:54 | #19 | Link |
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And to playback it http://labs.adobe.com/downloads/flashplayer10.html
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18th November 2009, 05:39 | #20 | Link |
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On my Windows XP SP3 32-Bit/nVIDIA GeForce 8800GT/Firefox 3.5.5 setup using the new Flash 10.1 beta there's no bilinear filtering on YouTube videos. Looks really horrible. Reminds me of when Google Video just released.
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Tags |
1080p, h.264, youtube |
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