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Fixed in Unity 2018.1



Found in


Issue ID




[Android] VideoPlayer stuttering and dropping frames




Priority: 3Not yet prioritized for a release


Severity: 3Workaround is possible

How to reproduce:
1. Open stripped project from OC
2. Deploy app to device
3. Click 'Breathing'
4. Click 'What are the benefits?'
5. Click on the video 'play' icon
-- Observe abysmal video performance

Reproduced on: 5.6.2f1, 5.6.2p4, 2017.1.0p1, 2017.2.0b4, 2017.3.0a1

Issue cause: Multithreaded Rendering, with Multithreaded Rendering disabled video plays smoothly.

Devices under testing:
Samsung SM G900F (Galaxy S5)*, OS:6.0.1, CPU:armeabi-v7a, GPU:Adreno (TM) 330, Build:samsung/kltexx/klte:6.0.1/MMB29M/G900FXXS1CQC1:user/release-keys
Samsung SM G950U*, OS:7.0, CPU:arm64-v8a, GPU:Adreno (TM) 540, Build:samsung/dreamqltesq/dreamqltesq:7.0/NRD90M/G950USQU1AQC8:user/release-keys
Verizon SM G930V*, OS:7.0, CPU:arm64-v8a, GPU:Adreno (TM) 530, Build:Verizon/heroqltevzw/heroqltevzw:7.0/NRD90M/G930VVRU4BQC5:user/release-keys
Xiaomi MI NOTE Pro*, OS:7.0, CPU:arm64-v8a, GPU:Adreno (TM) 430, Build:Xiaomi/leo/leo:7.0/NRD90M/7.7.13:user/release-keys

Fixed in: 5.6.4p3, 2017.1.2p3, 2017.2.0p3, 2017.3.0b9, 2018.1.0a2

Response avatar


Aug 25, 2017

Our developer has identified the issue is caused by Multithreaded Rendering option enabled. Disabling it may be a workaround for you until we get a proper fix.

Comments (35)

  1. 8edb9b179816862ea74cba72d29814a0?d=mm


    Mar 13, 2018 09:02

    this issue is not fixed.
    Video doesn't play at all now on Android devices when multithreaded rendering is disabled.

    Please fix it.

  2. Df1a22687df368a376272c76a32c4703?d=mm


    Feb 21, 2018 16:03

    @MAXBOT and @CLPPK could you submit bug reports with your project? Maybe it's something completely different?

  3. D306645456fca907b5d49aa7834d5ada?d=mm


    Jan 10, 2018 13:17

    Issue is still not resolved in the following Unity versions:
    Unity 2017.1.2f1, Unity 2017.2.0f3, Unity 2017.3.0f3

    Disabling Multithreaded Rendering made the stuttering go away, but the video playback runs with half the fps causing a screen tearing like effect. This is unusable for 360 VR app.

  4. 969d5aa72b9890c7a922e4758b581e92?d=mm


    Jan 07, 2018 21:07

    It is Not fixed.
    Video Player works great on IOS.
    Do the same on Android please.

  5. 7ba978ecf31088b97f19634c75dcdac4?d=mm


    Nov 15, 2017 01:50

    Same issue here!! Running Unity 5.6.4p2, stuttering video playback...
    Now rolling back to 5.6.1p1.... Please fix urgently!!

  6. 465166362da5a8a8752195e9c629c025?d=mm


    Nov 09, 2017 17:04

    This issue is marked fixed, and yet, yesterday, using the newest Unity 2017.2f3, it clearly isn't fixed. What's going on guys?

    The main problem i see here, VideoPlayer.prepare() is being run on the main thread. Yikes. Even google suggests not doing so.

    What's going on??

  7. 45c3f1fae55e7e47cc02d4cacf040164?d=mm


    Oct 31, 2017 11:04

    Stuttering continues even with Multithreaded Rendering turned off.

  8. B275d6d9a071fc3dffe7638286285b9c?d=mm


    Oct 30, 2017 14:04

    Really pleased this is marked as "Fixed in a future release" but when is this fix likely to be released or has it already been released? I couldn't find mention of it). Cheers

  9. 9fd9e84667a39905d6b6ad6131b8afec?d=mm


    Oct 23, 2017 11:53

    When deploying an Android app with cardboard enabled under XR settings and playing it on a device, a warning dialog comes up if you don't have Google VR Services installed. After this window pops up, the Video Player starts to noticeably stutter.

    Exiting to home screen and resuming the app fixes the issue, and the Video Player plays smoothly. However, you can replicate the bug by clicking on the gear icon on the upper right, which causes another window to pop up prompting you to install the cardboard app. Everytime this window pops up, the video player stutters more and more (after 2/3 times, it's unwatchable).

    Disabling Multithreaded Rendering did not make a difference for me.

  10. 11098cac9d4289f9ff9882a912ef4985?d=mm


    Oct 23, 2017 11:26

    Disabling "Multithreaded rendering" solved our video freezing problem. (Samsung Galaxy Tab 4)

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