Choppy 4K Video Playback

Discussion in 'MacBook Pro' started by hcole623, Dec 18, 2016.

  1. hcole623 macrumors regular


    Oct 4, 2013
    Good morning, I am shooting video on a DJI Mavic Pro drone at its default settings (4K, 30fps, .mov). When I try to play the video back in QuickTime or in, I experience stuttering and choppiness when viewing on my brand new late 2016 MacBook Pro (touch-bar, 8GB). This hardware should be more than sufficient to play this footage, right? The odd part is, sometimes the same clip will lag, and sometimes it will playback smoothly. Any advice?
  2. imacspert macrumors newbie

    Dec 26, 2007
    Same issue here.
  3. gui0312 macrumors 6502


    Apr 10, 2015
    can anyone confirm if this is a 13 vs 15 issue with the dGPU
  4. imacspert macrumors newbie

    Dec 26, 2007
    Mine is a 13" TB 2.9Ghz with 8GB RAM and 512TB SSD.
  5. jav6454 macrumors P6


    Nov 14, 2007
    1 Geostationary Tower Plaza
    This is most likely a CPU issue as viewing a movie is joint effort between the feeder of frames (GPU) and decoder of said frames (CPU). See what the CPU is doing when playing back.
  6. imacspert macrumors newbie

    Dec 26, 2007
    VTDecoderXPCService is at 180% of CPU activity according to Activity Monitor when the 4k video is slowing down. What would cause this? Can playing back a short 4K clip really overpower the CPU when nothing else is running?

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