Choppy 4K Video Playback

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

  1. hcole623 macrumors regular

    hcole623

    Joined:
    Oct 4, 2013
    #1
    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 Photos.app, 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

    Joined:
    Dec 26, 2007
    #2
    Same issue here.
     
  3. gui0312 macrumors 6502

    gui0312

    Joined:
    Apr 10, 2015
    #3
    can anyone confirm if this is a 13 vs 15 issue with the dGPU
     
  4. imacspert macrumors newbie

    Joined:
    Dec 26, 2007
    #4
    Mine is a 13" TB 2.9Ghz with 8GB RAM and 512TB SSD.
     
  5. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #5
    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

    Joined:
    Dec 26, 2007
    #6
    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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