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Won't Fix

Votes

0

Found in

2019.4.30f1

2020.3

2021.2

2022.1

2022.2

Issue ID

1382732

Regression

No

Stuttering video playback on lower tier Android devices

Video

-

Reproduction steps:
1. Open the attached project "VideoPlayerStutterIssue"
2. Make sure the targeted platform is Android
3. Build and Run

Expected result: Videos are not stuttering
Actual result: Videos are visibly stuttering

Reproducible with: 2020.3.27f1, 2021.2.9f1, 2022.1.0b5, 2022.2.0a2
Could not test with: 2019.4.35f1 (Editor not responsive)

Reproducible with these devices:
VLNQA00334, Xiaomi Mi A3 (Mi A3), Android 11, CPU: Snapdragon 665 SM6125, GPU: Adreno (TM) 610
VLNQA00096, Samsung Galaxy S8 (SM-G950F), Android 8.0.0, CPU: Exynos 9 Octa 8895, GPU: Mali-G71
VLNQA00285 - Samsung Galaxy J4 Core (SM-J410F), OS: 8.1.0, CPU: Snapdragon 425 MSM8917, GPU: Adreno 308

Not reproducible with these devices:
VLNQA00038 - HTC Desire 510 (HTC A11), OS: 4.4.3, CPU: Snapdragon 410 MSM8916, GPU: Adreno 306
VLNQA00412 - LGE LG G3 (LG-D855), OS: 5.0, CPU: Snapdragon 801 MSM8974AC, GPU: Adreno 330
VLNQA00277 - Asus ROG Phone (ASUS_Z01QD), OS: 9.0.0, CPU: Snapdragon 845 SDM845, GPU: Adreno 630
VLNQA00121 - Samsung Galaxy S9 (SM-G960F), OS: 9.0.0, CPU: Exynos 9 Series 9810, GPU: Mali-G72
VLNQA00410 - Galaxy Z Fold3 5G (SM-F926U), OS: 11, CPU: Snapdragon 888, GPU: Adreno 660
VLNQA00147 - Razer Phone (Cheryl), OS: 8.1.0, CPU: Snapdragon 835 MSM8998, GPU: Adreno 540
VLNQA00219 - Samsung Galaxy Note9 USA (SM-N960U), OS: 8.1.0, CPU: Snapdragon 845 SDM845, GPU: Adreno 630
VLNQA00070 - LENOVO PHAB2 Pro (Lenovo PB2-690M), OS: 6.0.1, CPU: Snapdragon 617 MSM8952, GPU: Adreno 510
VLNQA00006 - Samsung Galaxy S7 (SM-G930F), OS: 8.0.0, CPU: Exynos 8 Octa (8890), GPU: Mali-T880
VLNQA00288, Samsung Galaxy J7 (SM-J730F), Android 8.1.0, CPU: Exynos 7 Octa 7870, GPU: Mali-T830
VLNQA00001, Google Pixel 2 (Pixel 2), Android 11, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
VLNQA00316, Samsung Galaxy Note10 (SM-N970F), Android 9, CPU: Exynos 9 Series 9825, GPU: Mali-G76
VLNQA00225, Qualcomm null (SDM845 for arm64), Android 8.1.0, CPU: Snapdragon 845 SDM845, GPU: Adreno (TM) 630

  1. Resolution Note:

    The number of clips that can be played concurrently on Android devices is dependent on their capability. Exceeding capabilities can lead to stutter. Workarounds for these situations include:

    * Care should be taken at using the smallest resolution and frame rate that is acceptable in the context.
    * Another authoring trick would be to have a single movie file that contains all 3 streams concatenated side by side (doable with external tools like ffmpeg). At playback time, one can manipulate texture coordinates to extract the wanted subparts and place them in the right location in the scene.
    * The "skip on drop" setting could also be turned off. When enabled, this setting forces the VideoPlayer to skip-ahead if it falls a bit behind. This procedure can be costly depending how the keyframes are laid out in the video.
    * Having more keyframes in the video could be of help here if skip on drop is to be kept enabled.

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