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  1. Member
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    Is there some specific way of encoding videos so that YouTube does not change their framerate back to 30fps? I'm trying to upload 60fps videos but YT automatically changes them to 30fps after processing.

    Here are some examples of 60fps videos on YouTube:
    http://www.youtube.com/watch?v=1KV5-xs6-nc
    http://www.youtube.com/watch?v=MRH-xagnvBw
    http://www.youtube.com/watch?v=0xN6eL_pAPw
    http://www.youtube.com/watch?v=7aubLF9v4qo
    http://www.youtube.com/watch?v=biT1cm2lfEI
    http://www.youtube.com/watch?v=lZ9ZZbEttyU

    I've tried lots of different codecs, resolutions, bitrates, containers, but still cannot get the right configuration.

    I hope someone can help me with this!
    Thanks in advance.
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  2. Have you tried uploading 60 fps flv file? Downloading one of the files then uploading it yourself?
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  3. Member
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    Originally Posted by jagabo
    Have you tried uploading 60 fps flv file? Downloading one of the files then uploading it yourself?
    Yes. YouTube apparently does not accept .flv video files any more for upload. Whenever I uploaded a .flv (Flash Video) file, it said "Failed (unable to convert video file)".
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  4. Chicken McNewblet
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    I'm having issues with this as well, I have an MP4 file that I've run through VDub (captured from a DV camera) that runs at 60 fps on my computer, but Youtube destroys the quality (evident here http://www.youtube.com/watch?v=suJCWkgwBr8). Anyone have any advice?
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  5. What did you upload ? The original footage or something else like a deinterlaced intermediate?

    Youtube re-encodes everything at a limited bitrate, so it will destroy the quality . It's supposed to.
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  6. sorry double post
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  7. Chicken McNewblet
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    Originally Posted by poisondeathray
    What did you upload ? The original footage or something else like a deinterlaced intermediate?

    Youtube re-encodes everything at a limited bitrate, so it will destroy the quality . It's supposed to.
    I used VDub's deinterlacing with the yadif algorithm and preserved the doubled framerate, then exported it as a 16:9 MP4 at full available quality. I suppose I care more about the framerate than the actual quality of the video in this particular case.
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  8. AFAIK, youtube doesn't allow 60fps

    The examples above are all old, before the changes at youtube

    Also notice they are all tiny like 320x240 and less than a few MB
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  9. Chicken McNewblet
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    Damn, oh well.
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  10. Member
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    If you hunt around for videos with occasional comb artifacts visible and then play them at the lowest YouTube quality available, sometimes they jump to 60fps. If you reduce the quality of some of the video samples posted (as in if it says 360p, try 240p), they are in fact still 60fps on YouTube. I think their conversion process is frame rate at high quality, interpolated field rate at low quality? 60fps at low quality doesn't seem to work with progressive video. Maybe there's still some magic trick..
    Last edited by Armandoban; 27th Nov 2010 at 17:24. Reason: mistake/clarity/rampant perfectionism
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  11. Member
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    Originally Posted by Armandoban View Post
    If you hunt around for videos with occasional comb artifacts visible and then play them at the lowest YouTube quality available, sometimes they jump to 60fps. If you reduce the quality of some of the video samples posted (as in if it says 360p, try 240p), they are in fact still 60fps on YouTube. I think their conversion process is frame rate at high quality, interpolated field rate at low quality? 60fps at low quality doesn't seem to work with progressive video. Maybe there's still some magic trick..
    My "magic trick" is to cross-convert to interlaced at double the resolution, to wit:

    2160i60 video:


    You can see the 60fps effect by using one of the usual tricks to download to disk, then view in VLC, with "Linear" deinterlacer.

    This takes advantage of the (stupid!) situation where you can go insane with megapixels, but not even SDTV with frame rate.

    Frankly I don't see why YouTube is pursuing the pipe-dream of 4K and 8K video. Nobody has computer screens that high.

    On the other hand, long after the first "HQ" feature, YouTube still doesn't truly support Standard Definition, either 60Hz 480i or 480p, or 50Hz 576i or 576p.

    Ridiculous.

    CK.
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  12. Lone soldier Cauptain's Avatar
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    Info about YT at 60fps from TAS video site:

    Enable YouTube's html5 player(required)

    -Select a browser that supports html5 video(chrome, opera, ie9, safari)

    Watch the below videos at 2x speed!

    Gunstar Heroes
    Super Mario World
    Super Metroid
    Alisia Dragoon
    Super Mario World
    Super Metroid

    Yes the sound breaks, but as a quick 60fps hack what do you guys think?

    PC games look pretty: http://www.youtube.com/watch?v=AhamPScmrLQ


    source: Tas forum
    Awesome trick to 60fps videos.


    Claudio
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  13. Member
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    I'm trying to start a video sharing site for high-frame-rate videos up to 120 fps. Please see my campaign on Indiegogo: http://igg.me/p/452815/x/3811011
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