From e68c50d614bd94571ce35be8cd417c1c6cb50256 Mon Sep 17 00:00:00 2001
From: adbenitez <asieldbenitez@gmail.com>
Date: Wed, 15 Jan 2025 20:56:32 +0100
Subject: [PATCH] avoid race condition in onPlayerStateChanged inside
 AudioSlidePlayer.requestDuration

---
 .../securesms/audio/AudioSlidePlayer.java           | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/main/java/org/thoughtcrime/securesms/audio/AudioSlidePlayer.java b/src/main/java/org/thoughtcrime/securesms/audio/AudioSlidePlayer.java
index 375291bd5..46a05eabe 100644
--- a/src/main/java/org/thoughtcrime/securesms/audio/AudioSlidePlayer.java
+++ b/src/main/java/org/thoughtcrime/securesms/audio/AudioSlidePlayer.java
@@ -87,11 +87,14 @@ public class AudioSlidePlayer {
         public void onPlayerStateChanged(boolean playWhenReady, int playbackState) {
           if (playbackState == Player.STATE_READY) {
               Util.runOnMain(() -> {
-                Log.d(TAG, "request duration " + durationCalculator.getDuration());
-                getListener().onReceivedDuration(Long.valueOf(durationCalculator.getDuration()).intValue());
-                durationCalculator.release();
-                durationCalculator.removeListener(this);
-                durationCalculator = null;
+                synchronized (AudioSlidePlayer.this) {
+                  if (durationCalculator == null) return;
+                  Log.d(TAG, "request duration " + durationCalculator.getDuration());
+                  getListener().onReceivedDuration(Long.valueOf(durationCalculator.getDuration()).intValue());
+                  durationCalculator.release();
+                  durationCalculator.removeListener(this);
+                  durationCalculator = null;
+                }
               });
           }
         }