There has already been a lot of discussion about that, but it was never reduced down to a clear poll, neither did it aim for figuring out what exactly does youtube do to 60 fps footage, and how to properly use it. So here it goes.
YouTube is only able to play at 60 fps in Google Chrome (support in Firefox Nightly and Internet Explorer 11 was reported, but never tested by us), when you select that option in the Quality drop-down menu ("720p60fps" or "1080p60fps"). Other browsers only allow to select quality/resolution, but don't add the "60fps" option.
Why is it important for us? Because absolute majority of our runs are at ~60 fps, so it'd be reasonable to watch it at native framerate. However, streaming at full framerate was not possible until recently. But we really needed it, because many games were using it as a feature to simulate transparency (blinking on every frame at 60 fps does look like transparency on TV). If you upload a 60 fps video with such a blinking object to old youtube, it will show up as solid, or won't show up at all. We tried to fight that by dropping frames at different rates, like making it 25 fps, but I must admit that the smartest way to drop frames (
drop 3rd, 5th and 6th out of every 6-frame segment) was not discovered.
Then
TASBlend, and
ng_deblink were invented. The first one was blending every 2 frames into one, adjusting the percentage of bleeding of one frame into another. The second method calculates the mask for any object that's blinking every other frame, and uses it to make it (and only it) translucent, then after dropping every other frame, you get a look that's very close to the original footage. It only can't handle video where background is shaking at that rate, simply losing one half of it.
It was also suggested, that when watching with modern 60 fps feature, background scrolling (and animation in general) look way smoother than at 30 fps dropped.
The question is: Are you able to actually watch youtube at 60 fps? Which means, your hardware/software is capable of not falling back to 30 fps, even when 60 fps is enabled manually. Mine is not. No matter what I do, it's 30 fps only. So here are the test videos:
Source (60 fps lossless emulator dump):
https://archive.org/download/FullFpsTest/sm.7z
https://archive.org/download/FullFpsTest/s3k.7z
Full fps:
http://www.youtube.com/watch?v=XYWRpehyRqo
http://www.youtube.com/watch?v=WgY1_31eBAo
Deblinked:
http://www.youtube.com/watch?v=ZKMQVCTZFac
http://www.youtube.com/watch?v=TikaZ3NXLQA
For how it
should look like originally, watch the lossless dumps. Then watch full fps videos in Chrome (and other browsers for the sake of a test) with Quality 720p60fps or higher. Then watch deblinked videos in any browser you wish (won't affect the result). And finally, answer the poll.
As for posting, please describe what difference do you see between full fps encodes and deblinked ones.
WARNING: Set the monitor rate to 60 Hz.
