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I have been uploading a lot of videos to Facebook recently, but I don't know whether Facebook will re-encode a video if the video doesn't meet their requirements. Which render options are valid so that Facebook will leave my video untouched?

Options

  • Maximum file size (MB)
  • Maximum video length (Hour)
  • Maximum bitrate (Mbps)
  • Maximum resolution
  • Maximum frame rate
  • 10-bit bit depth support
  • Reference frame (Does Facebook bother this?)
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The only information the provide on this is from Facebook Help:

How can I make sure my videos are high quality?

The easiest way to optimize the quality of your videos is to upload HD video.

If you're exporting your video from editing software (ex: Final Cut Pro, Avid, iMovie) we recommend these custom settings:

  • H.264 video with AAC audio in MOV or MP4 format
  • An aspect ratio no larger than 1280px wide and divisible by 16px
  • A frame rate at, or below, 30fps
  • Stereo audio with a sample rate of 44,100hz

Your software's guide should include information about exporting video with custom settings.

Keep in mind that videos must be less than 45 minutes long and smaller than 1.75 GB. The longer your video is, the larger its file size will be. This may affect the quality of the video.

Beyond this, it's impossible to say what they do to the videos uploaded to them. Chances are they will re-encode all videos regardless of what comes in, to ensure they are exactly what they need them to be.

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  • Yeah, I upload a 720p HD video. But there's a big loss of quality compared to the source. Unfortunately, video editing programs doesn't have a preset option where you can maintain the higher quality of the video by spending longer time, because the video is around 3 mins, even the slowest preset option won't take longer than 30 mins. – Happy Face Jan 28 '16 at 19:13

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