Plugin takes a lt of time generating thumbnails

  • Hi. I have an issue where I click “Randomize”, but it takes a lot of time for thumbnails to generate. Video also won’t play in timeline selector.

    Do you have any idea why would this happening? Also does the image generation happen on server or client side?

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  • Plugin Author Kyle Gilman

    (@kylegilman)

    If you don’t have FFMPEG installed on your server (and you probably don’t) then thumbnails are generated on the client side. Videopack relies on the browser to decode the video image. Usually if it takes a long time to generate thumbnails, it’s because the moov atom that contains the video metadata is at the end of your video, so the browser has to download the entire file before thumbnails start generating. If it’s a particularly large file, it could take a long time. Does this happen on every video you upload or just some? Programs like qt-faststart or MP4Box can quickly move the header to the start of the file without completely re-encoding the file. If you can’t run those programs, you can use a program like Handbrake to re-encode, and make sure “Web optimized” is checked.

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