So I upgraded my Mac to high Sierra and I was about the H.265 video encoding standard but when I encode a H.264 video to H.265 standard and then when I attempt to open the video using quick time player it shows "Quick Time player does not support these kind of videos"

So is this a problem that only I am experiencing or is this expected. I am running latest version of High Sierra by the way.

  • What is the file container? (AVI, MOV, MP4, MKV, etc)
    – NoahL
    Commented Dec 1, 2017 at 16:03
  • FFmpeg h.265 .mp4 plays back fine here. Commented Dec 27, 2017 at 18:00

1 Answer 1


“All iOS devices running iOS 11 and all Macs on High Sierra will support HEVC playback” https://www.macrumors.com/guide/hevc-video-macos-high-sierra-ios-11

Use QuickTime to encode the video to HEVC/H.265 so you can ensure it is encoded to the correct standards. https://developer.apple.com/library/content/documentation/General/Reference/HLSAuthoringSpec/Requirements.html

I’m guessing you were encoding using Handbrake.

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