Video View Not Rendering After Update to QuickBlox Flutter SDK v0.8.1

[st-97]

Hello QuickBlox Team,

I’ve been using your Flutter SDK for implementing audio/video calls. Everything was working as expected until I updated to version 0.8.1. After the update, the video rendering completely stopped for both local and remote streams.

To ensure the issue wasn’t with my own implementation, I downloaded and tested your official example app, and found that the video views are also not rendering there — neither local nor remote. No video frames are being shown even though the call connects successfully and audio works fine.

Previously, this was working perfectly in the older version of the SDK.

Details:
SDK version: 0.8.1

Issue: RTCVideoView not displaying local or remote streams

Tested on: My custom implementation and your official example app

Expected: Both RTCVideoView instances should show video

Actual: Black screen in both views

This seems to be a regression introduced in v0.8.1. Please look into this at your earliest convenience.

Thanks for your support!

[mohitquickblox]

Hello @st-97, Do you mean Flutter SDK Version 0.18.1?

[st-97]

Hi @mohitquickblox,

Thanks for your response.

No, I wasn’t referring to the Flutter SDK version 0.18.1. I’m specifically using quickblox_sdk: ^0.8.1.

That said, I also downloaded and tested your official sample app, which currently uses quickblox_sdk: 0.18.1. I ran the app without making any changes at all just a clean clone and run and I'm still facing the same issue: video is not rendering for either local or remote streams. The call connects successfully and audio works fine, but both video views remain black.

Could you please test this on your side and confirm if it works as expected? If there are any specific account-related settings or configurations required for video to work, please let me know.

Appreciate your help in resolving this.

Thanks!

[mohitquickblox]

@st-97 Thank you for your response.

Kindly provide some additional details:

1. On which platform the issue is happening? (For example: Android, iOS or both)
2. What device(s) (along with the model and OS version) were used for testing?

[st-97]

1. Both ios and android actually i am using flutter and the issue is with both.
2. I've tried it multiple devices, iPhone X, 12, 15, Samsung a55, Redmi Note 11.

FYI, It was working when before and after i publish my app, but after some days video call stopped working to show video of remote and local users on the live app.

[mohitquickblox]

Dear @st-97 ,

Please note that Flutter SDK version 0.8.1 was never released. All publicly available versions of our SDK can be found at: https://pub.dev/packages/quickblox_sdk/versions.

Furthermore, our public WebRTC sample is compatible with Flutter SDK version 0.17.0, not 0.18.1. You can verify this in the sample's pubspec.yaml file here:

quickblox-flutter-samples/videocall_webrtc_sample/pubspec.yaml

Line 34 in 0aa8b47

quickblox_sdk: ^0.17.0

.

May I inquire if you manually upgraded the Flutter SDK version to 0.18.1 before running the sample? To assist you further, please provide the exact version(s) where you are encountering the issue so that we may reproduce the same on our end.

[st-97]

yes, i did, and i am complaining about the sdk version 0.81.1 and 0.81.0, both, These versions are not working even in your sample app

[mohitquickblox]

@st-97 Do you mean SDK versions 0.18.0 and 0.18.1?

[st-97]

yes, also my old work app is stopped working, it was working before, but now its not showing videos of remote and local user.

[mohitquickblox]

@st-97 Can you please mention the SDK version used in your old application?

[st-97]

I used quickblox sdk version: 0.16.3

[st-97]

Hi,

I haven’t heard back from you yet, so I wanted to follow up.

I’ve tested the Native SDK and Flutter SDK in the following scenarios:

Flutter → Android

Android → Android

In all cases, I’m still seeing the black screen issue.

For reference, these are demo apps directly from here:
https://github.com/QuickBlox/quickblox-android-sdk/tree/master

Device details:

Pixel 8

Samsung A23 (Android 14, Samsung UI 6.1)

Here’s the recorded video showing the issue:
https://drive.google.com/file/d/1lWVsAwDT58CXYOTt8aRhICYgWrYt1c4o/view?usp=drivesdk

Could you please review and let me know the next steps?

Thanks.

[mohitquickblox]

Hello @st-97 , Thank you for the additional information. I will update you on our progress promptly.

[mohitquickblox]

Hello @st-97 , Thanks for your patience. We have now fixed the issue and released a new version of Flutter SDK 0.18.3
You may find the notes here: https://github.com/QuickBlox/quickblox-flutter-sdk/releases/tag/0.18.3

Kindly upgrade to this version and run your tests. Your feedback is crucial to us and we will look forward to your response.

[st-97]

@mohitquickblox
Hi Mohit,

I went through the updated version and wanted to share a couple of issues I noticed:

If I don’t grant mic or camera permissions, the app crashes. Ideally, this should be handled more gracefully (e.g., by showing a fallback or error message) rather than crashing.

On Android:

When I receive a call, I’m able to see the video correctly. (note that i tried calling enableVideo method explicitly but no luck)

But when I initiate (dial) a call, I don’t see my own video.

In getEntities, I do see both myself and the opponent listed correctly, so it looks like the entities are being tracked.

On iOS:

I’m unable to see my own video in all cases — whether I’m receiving or dialing a call.

Please let me know if you’d like me to share logs, screen recordings, or any specific test cases to help reproduce these issues. Happy to provide more details if needed.

[mohitquickblox]

Hi @st-97 , Please share the logs, screen recordings or any other information that would help us in reproducing the issue.