[Android] API 21 to API 25, video frames are not loaded until user perform button click (UI refresh)

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
30/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
android

Research direction

Start by reproducing the call flow with com.azure.android:azure-communication-calling:1.2.0-beta.2 on API 21–25, then compare initial video-renderer behavior with API 26–31. Done means remote video frames render when the renderer view is first attached, without requiring a button click or UI refresh.

Written by the indexing model from the issue text.

Description

ADO Linked Android Bug Calling

Describe the bug
From API 26 to API 31 on call join if remote participant has video on then Android renders video properly. However, for devices with API 21 to 25, the video frames are not loaded on when video renderer view is loaded first time.

Video: video attached at https://skype.visualstudio.com/SPOOL/_workitems/edit/2542990

To Reproduce
Steps to reproduce the behavior:

  1. Launch device or emulator with API 21 to 30
  2. Start call with one remote participant with video on
  3. Join call from each device individually (end call on first device before joining from second)
  4. Issue: API 21 to 25 does not load video when video render view is attached to UI (same code is used for all devices)

Desktop (please complete the following information):**
com.azure.android:azure-communication-calling:1.2.0-beta.2

Smartphone (please complete the following information):

  • Device: API from 21 to 31
Dominant language
No language data
Stars
340
Forks
113
PR merge metrics
No merged PRs in 30d

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