Description Continue following https://devforum.zoom.us/t/the-canvas-video-occasionally-freezes/129584 We’ve observed that in version 2.1.0, when rendering video using canvas, the VM occasionally fails to decode new video frames, resulting in the video freezing. We would like to know: Can we de…

[image] The canvas video occasionally freezes Video SDK Hi @lmtruong1512 Is the “Virtual Machine” issue related to the Zoom SDK’s internal implementation, or is it dependent on the client-side environment? It’s related to the virtual machine as well as our implementati…

Hi @vic.yang , Sorry for the confusion in my previous question. What I meant to ask is: In the current version, we still encounter the issue of video freezing—whether we use canvas or video-player—when WebRTC is not enabled. This seems to be caused by the VM occasionally failing to decode new vide…

Hi @lmtruong1512 From what we understand, in the upcoming release, this issue will be resolved for both canvas and video-player even when WebRTC is disabled. We haven’t fully fixed this issue yet. The video freeze problem on VMs will still exist in the next version. Thanks Vic

Hi @vic.yang , thank you for the update. When a new version is released with a fix for this bug—whether it applies to canvas, video-player, or both—please let us know as well. We appreciate your support!

Hi @vic.yang , Since we’re currently unable to enable WebRTC and the fixed version has not been released yet, we’re exploring a workaround for this issue. Could you help us clarify the following questions? Is there a way to detect when the video has frozen so we can handle it appropriately? When …

Hi @lmtruong1512 We’re currently trying to reproduce this issue using a virtual machine. We’ve spent quite a bit of time on it but haven’t been successful so far. Would you be able to share your VM configuration details with us? This includes hardware specs, OS version, and browser version informat…

Hi @vic.yang , We run on a VM configuration with this info: EC2 InstanceType: ‘c7i.8xlarge’, ‘c7i-flex.8xlarge’ AMI: ami-0426fed36770173b1 TaskDefinition: Cpu: ‘6144’, Memory: ‘12288’ OS: Linux/UNIX Source: amazon/al2023-ami-ecs-hvm-2023.0.20250224-kernel-6.1-x86_64 Browser: Chrome 134 Using a he…

@vic.yang If there’s any progress, please keep us informed. Also, if there’s a way to detect when a video has frozen, it would be very helpful—whether through a ZoomSDK API or any client-side way suggestion you can recommend? We’re attempting to detect video freezing by sampling pixels at specific …

@vic.yang We’re also encountering this error with a regular user (not using a Virtual Machine): Uncaught TypeError: Cannot set property rotation of #‹VideoFrame> which has only a getter js_primitives.dart: 28 cOlba414-fe96-402b-b..-ac3d0e09538c: 22948 @* at Object.render (e01ba414-fe96-402b-b..3d0…

Is There a Way to Detect Canvas Video Freezes

Video SDK Web

lmtruong1512 (TruongLM) June 27, 2025, 11:47am 2

@vic.yang
Will the next SDK release support using video-player instead of just canvas, even without enabling WebRTC?

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Is There a Way to Detect Canvas Video Freezes

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