Search Issue Tracker

Fixed in 2018.2



Found in


Issue ID




[Win] Stuttering sound of mp4 files, video lags



Steps to reproduce:
1. Open user attached project
2. Play the scene
3. Notice that the sound is stuttering, video lags

Expected result: The sound of an mp4 file should not stutter, video should not lag

Reproduced in: 2017.2.0a1, 2017.1.0b7, 5.6.1p2, 5.6.0b1
Reproduced using Windows 8.1

Comments (10)

  1. 0674041c71805652222f9b2ffa39c626?d=mm


    Sep 03, 2018 04:25

    Testing on 2018.2.6, It doesnt work, audio jumps on mp4 encoded and not encoded...

  2. Eae3b3e8ac8597914ba1a401fcf707a0?d=mm


    Aug 30, 2018 12:24

    Can anyone report that this has really been fixed for you? I'm experiencing a similar problem in 2018.2.5 and 2017.4.10 (less severe in the LTS release but still existent).

  3. Cab93012bf7550234ec2d36f70fa232e?d=mm


    May 02, 2018 23:36

    I found a slight improvement by importing a wmv and asking Unity to transcode it instead. Such funnyness, given the fact that the player was built for mp4

  4. F189e40ad0c4c1c8b525fb0ba02cdb5e?d=mm


    Feb 20, 2018 09:11

    Come on! Bug reported nearly 1 year ago!!

  5. E0d52a801a7475f25994e7cf0bc8a19f?d=mm


    Dec 05, 2017 18:27

    On HoloLens I fixed this issue by separating the AudioSource and VideoPlayer components so they are not on the same GameObjects.

  6. 863e9056c1f94fbb3acd52c4c03eeb6b?d=mm


    Sep 24, 2017 10:49

    I'm still patiently waiting for a fix, or at least a reply from the devs. I hope they get around this issue and find a solution to this type of bug. I have seen in the changelogs (release notes) that they have fixed a lot of VideoPlayer related things... but no mention of this problem yet.

  7. F189e40ad0c4c1c8b525fb0ba02cdb5e?d=mm


    Sep 21, 2017 20:12

    Bug was reported since march 2017 (7 months ago!)!
    Will it be fixed soon!?

  8. 213ba226b8a3af84f712872a9194e18e?d=mm


    Aug 12, 2017 12:38

    Found the issue in all version from 2017.1.0f3 and up. Brand new feature (VideoPlayer) is completely unusable for both normal and VR use. Hopefully someone is going to look into this VideoPlayer more seriously. Right now EasyMovieTexture is the best cheap solution that works.

  9. 8f6aa0cc0f1d81a44e0b88916157e615?d=mm


    Jul 01, 2017 00:09

    Any workarounds? Would some specific video encoding lessen the problem?

  10. D71443b5a3c041684a75390a4b559fde?d=mm


    Jun 28, 2017 08:37

    I get this issue on my iPhone 6S as well. Any workarounds will also be appreciated for now.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.