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Duplicate

Votes

2

Found in

2021.3.6f1

2022.3.43f1

6000.0.15f1

6000.1.0a3

6000.2.0a1

6000.3.0a1

Issue ID

UUM-12107

Regression

No

Video stutters on playback when the 'loop' option is enabled in the Video Player Component

-

Reproduction steps:
1. Open the attached ‘VideoLoop’ project
2. Open the ‘SampleScene’
3. Enter Play mode

Expected result: Video loops without stutterings
Actual result: The video noticeably stutters when it loops

Reproducible with: 2020.3.37f1, 2021.3.6f1, 2022.1.12f1, 2022.2.0b2, 2023.1.0a6

Reproduced on: Windows 11 (Nvidia)

Note: The issue is not reproducible when the Codec is set to ‘VP8’

  1. This is a duplicate of issue #UUM-58173

    Setting VideoPlayer.time and pausing results in incorrect player.frame values

  1. Resolution Note:

    This bug had the same underlying cause as UUM-58173. I validated that this was true by testing the project in:
    - 6000.2.0a1 (right before the fix for UUM-58173 landed)
    - 6000.2.0a4 (after the fix for UUM-58173 landed)

    and I was only able to reproduce the issue in 6000.2.0a1.

    NOTE: The video still doesn't loop in a perfectly smooth manner; there's still a short "lag" at the loop point. But that's a known design weakness of the Video Player, we don't currently support seamless looping.

    The issue that existed in 6000.2.0a1 and is fixed in 6000.2.0a4 is that there was a jitter at the loop point where the frames were shown out of order. So when the video looped, you would see the video jump back a little bit because it was showing older frames instead of the frames in the beginning of the clip.
    Duplicate of https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-58173

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Comments (1)

  1. minijaham

    Apr 11, 2025 09:39

    Confirmed that this happens on 6000.0.38f1 as well.

    The video doesn't stutter ALL the time upon loop, but it sometimes does - and is completely... random, it seems.

    Not entirely sure why this is happening.

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