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15th December 2015, 19:09 | #1 | Link | |
Retried Guesser
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Netflix To Re-Encode Entire 1 Petabyte Video Catalogue In 2016 To Save Bandwidth
http://hardware.slashdot.org/story/1...save-bandwidth
http://variety.com/2015/digital/news...ty-1201661116/ Quote:
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15th December 2015, 22:41 | #2 | Link |
Formerly davidh*****
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So... what? They (re-)invented constant quality encoding...?
I guess there might be a little bit more to it than that, but it sounds like they originally had everything encoded at a flat 5800kbps (or possibly encoded so everything averaged 5800kbps), regardless of the content. So not really sure what, if anything, is "new" here, as far as video encoding goes. |
20th December 2015, 21:50 | #3 | Link |
The image enthusyast
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What?????????????? 1.5 Mbps are equal to 0.1875 MBps. This is for a 1080p video... Impressive! I just want know what is the fps of video you've talked about. If we consider a non-compressed 1080p RGB 888 non-3D 24 fps has bitrate of 145.8 MBps, the Netflix bitrate is quite strange. 777.6 times of compression... I only wish see the artifacts of this algorithm!
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Searching for great solutions Last edited by luquinhas0021; 20th December 2015 at 21:53. |
21st December 2015, 07:55 | #4 | Link |
Angel of Night
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You can download a sample of any YIFY release to see what 1080p@1.5 mbps looks like, if you don't want to do it yourself. It's not unwatchable, barely, but it's definitely not even in the same league as bluray or high-rate recompression. (Comparing against the uncompressed bitrate is pointless, though, that's just 101 Intro to H.264. Video compresses well, who'd have thunk it!)
I wish they'd use the extra bandwidth for more quality, since Netflix always looks noticeably more smooth, but at least they're trying to spend more cpu time on encoding to maximize their bitbudget. |
21st December 2015, 11:30 | #5 | Link | |
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Quote:
http://variety.com/2015/digital/news...ty-1201661116/ Over the past couple of years, Netflix’s video algorithm engineers have worked on perfecting this more flexible approach towards video encoding...... The result is a true title-by-title approach, where every single movie and TV show episode gets its own encoding settings. The article ended with this: And then there is another crazy idea that could require the company to re-encode the entire catalog all over again: After finding the best setting for each single video, Aaron’s team is now thinking about even encoding each scene of a movie or TV show with different settings to account for higher information density during fight scenes and lower demands during slow moments of introspection. |
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21st December 2015, 11:54 | #6 | Link | |
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Quote:
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21st December 2015, 12:11 | #7 | Link |
RipBot264 author
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Indeed netflix has invented wheel again. This is probably nothing but cq mode with set max bitrate limit.
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25th December 2015, 19:31 | #8 | Link |
clueless n00b
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I'd rather they do a few different quality level in function of the available bandwidth. I have an insane line and the ISP hosts a Netflix cache server so I wouldn't mind them streaming at blu-ray rivaling bitrates or 100mbit for 4K... I'm not saying it is for everyone, but given the capabilities, why downgrade what could be delivered in full quality. It's even worse with all those IPTV solutions.. the OTT ones use minimal bitrates to fit those last century DSL lines, the provider based ones are a bit better, but far away from the original Satellite signal that they could easily feed to their customers without any transcoding.
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25th December 2015, 21:03 | #9 | Link | |
Formerly davidh*****
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Quote:
Last edited by wonkey_monkey; 25th December 2015 at 21:05. |
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26th December 2015, 09:17 | #11 | Link | |
Angel of Night
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Storage costs are probably what would kill them, though. |
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1st January 2016, 15:43 | #12 | Link | |
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Quote:
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1st January 2016, 19:52 | #13 | Link | ||
Formerly davidh*****
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Quote:
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7th February 2016, 16:13 | #15 | Link | |
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Quote:
1PB is about 11000 hours of ProRes source, which is not that crazy number at all. 1000 (even more) hours per week can be done on 1 good server, so 10 boxes could do it in a about week time. Last edited by kolak; 7th February 2016 at 16:42. |
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19th March 2016, 22:27 | #16 | Link |
Special SeeD
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The new season of Daredevil was encoded using this "new bandwidth-saving technology", for the high 1080p mode, bitrate varies per episode from 4600 to 6200 kbps, not much different from the old fixed bitrate (5800), but the other resolutions are way more lower than before, the 720p mode when from 3300 Kbps to around 2000 Kbps, I wonder if they are using a lower CRF only for the highest quality mode? Also, they changed the audio codec too, before they were using AAC-HE or WMA10 at 64 or 96 Kbps, now they are using DD+ at 128 Kbps for stereo content, before DD+ was only used for 5.1 (at 192 Kbps).
Quality seems to be good at least during normal playback. Last edited by SquallMX; 19th March 2016 at 22:31. |
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