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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 (39)

  1. 470c46db9a4ef94dc23c9eeabae99d2e?d=mm


    Jun 06, 2018 23:22

    I think I am seeing this problem with 2018.1. What did you do to fix the issue?

  2. E048100fc31c23e870444a4bd9df5111?d=mm


    Jun 01, 2018 20:30

    Ok, nevermind my comment from yesterday. Got it working and it wasn't the cause of the multithreaded rendering. Sorry for the wrong comment :)

  3. E048100fc31c23e870444a4bd9df5111?d=mm


    May 31, 2018 23:39

    Just had this issue on Android for my app using Unity 2018.1.2f1 on Windows 10. Disabling "multithreaded rendering" eliminates the stuttering, but decreases the performace. Please mark this as NOT FIXED! I'm sorry that I can't submit a bug-report, because I'm not allowed by my client to do so.

  4. 46309494fd7b54debf27725002f61ce6?d=mm


    May 10, 2018 14:30

    Still having this issue. Multi threading has always been disabled for me

  5. 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.

  6. 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?

  7. 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.

  8. 969d5aa72b9890c7a922e4758b581e92?d=mm


    Jan 07, 2018 21:07

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

  9. 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!!

  10. 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??

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