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Duplicate

Votes

15

Found in

2021.3.31f1

2022.3.11f1

2023.2.0b13

2023.3.0a9

6000.0.0b11

Issue ID

UUM-54397

Regression

No

[General] Video and audio stutters when playing video in highly CPU demanding Scene

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Reproduction steps:
1. Open the attached project "ReproProj"
2. Open the “/Assets/SampleScene.unity” Scene
3. Enter the Play Mode
4. Observe the playing video and audio

Expected result: Video and audio plays smoothly without stuttering
Actual result: Video and audio stutters

Reproducible with: 2021.3.31f1, 2022.3.11f1, 2023.1.16f1, 2023.2.0b13, 2023.3.0a9

Reproducible on:
VLNQA00325, Samsung Galaxy Note10 (SM-N970F), Android 12, CPU: Exynos 9 (9825), GPU: Mali-G76
VLNQA00318, Oneplus OnePlus 7 Pro (GM1913), Android 11, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
VLNQA00231, Huawei HUAWEI Mate 20 Pro (LYA-L29), Android 9, CPU: HiSilicon Kirin 980, GPU: Mali-G76
VLNQA00231, Samsung Galaxy A5(2017) (SM-A520F), Android 8.0.0, CPU: Exynos 7 Octa 7880, GPU: Mali-T830
VLNQA00332, Samsung Galaxy XCover4 (SM-G390F), Android 9, CPU: Exynos 7 Quad 7570, GPU: Mali-T720
Editor Play Mode
Windows Standalone Player
Apple M1 Pro (User reported Play Mode and Build)

Testing environment: Windows 10 Enterprise 21H2
Not reproducible on: No other environment tested

Note:
- In Android Player, the video freezes at the beginning, but the stuttering audio can still be heard

  1. This is a duplicate of issue #UUM-65398

    [Android] Video freezes when built for Android with specific project

  1. Resolution Note:

    A performance degradation introduced in 2022.2.0a16 on a number of platform got repaired in a number of different but related fixes. The Android one was the last one to be fixed in the platforms reported by this bug.

    Essentially, the VideoPlayer had become too strict about how much delay it tolerates between game time and video time, causing it to try to seek ahead to catch up. The original level of tolerance was brought back while preserving the new video-clock-related features like clock source selection and capture frame rate support.
    Duplicate of https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-65398

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Comments (3)

  1. AlexCornellier

    Apr 15, 2024 19:39

    Appears to be fixed as of 2022.3.24f1. Was fixed somewhere between 2022.3.8 and 2022.3.24

  3. sonnyb

    Nov 09, 2023 15:25

    See related forum thread titled "Video player audio performance regression 2021 > 2022"

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