onPlaybackRateChange is not fired

Bug

onPlaybackRateChange callback is not fired on android when player is paused or played.

Platform

Which player are you experiencing the problem on:

• Android ExoPlayer
• Android MediaPlayer

Environment info

React native info output:

System:
    OS: macOS 11.0.1
    CPU: (8) x64 Intel(R) Core(TM) i7-4870HQ CPU @ 2.50GHz
    Memory: 21.38 MB / 16.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 14.16.0 - ~/.nvm/versions/node/v14.16.0/bin/node
    Yarn: 1.22.10 - /usr/local/bin/yarn
    npm: 6.14.11 - ~/.nvm/versions/node/v14.16.0/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  SDKs:
    iOS SDK:
      Platforms: iOS 14.3, DriverKit 20.2, macOS 11.1, tvOS 14.3, watchOS 7.2
  IDEs:
    Android Studio: 4.1 AI-201.8743.12.41.7042882
    Xcode: 12.3/12C33 - /usr/bin/xcodebuild
  npmPackages:
    react: 16.12 => 16.12.0
    react-native: github:jitsi/react-native#891986ec5ecaef65d1c8a7fe472f86cf84fe7551 => 0.61.5-jitsi.2

Library version: 5.1.1

Expected behaviour

1. onPlaybackRateChange callback must be fired when user plays or pause the video.

[Aaron46]

I’m not an Android dev so I can’t say this is super correct, but this is what I changed to get this to work. I used patch-package to install.

index 482ff93..6998417 100644
--- a/node_modules/react-native-video/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
+++ b/node_modules/react-native-video/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
@@ -1270,8 +1270,10 @@ class ReactExoplayerView extends FrameLayout implements
         if (player != null) {
             if (!paused) {
                 startPlayback();
+                eventEmitter.playbackRateChange(rate);
             } else {
                 pausePlayback();
+                eventEmitter.playbackRateChange(0);
             }
         }
     }

[Saikedo]

Same issue on Android,

Also on iOS there are multiple similar calls coming in one after another, not sure if that is expected.