From 7b352e1903415f630d01429faa818ed259570bf0 Mon Sep 17 00:00:00 2001
From: tonihei <tonihei@google.com>
Date: Thu, 23 May 2024 07:34:35 -0700
Subject: [PATCH] Add more details to thread assertion in
 onAudioCapabilitiesChanged

This helps to debug issues reported in https://github.com/androidx/media/issues/1191

PiperOrigin-RevId: 636545970
---
 .../media3/exoplayer/audio/DefaultAudioSink.java    | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/DefaultAudioSink.java b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/DefaultAudioSink.java
index c9000e69ce..1de4cf13b4 100644
--- a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/DefaultAudioSink.java
+++ b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/DefaultAudioSink.java
@@ -1530,7 +1530,18 @@ public final class DefaultAudioSink implements AudioSink {
   // AudioCapabilitiesReceiver.Listener implementation.
 
   public void onAudioCapabilitiesChanged(AudioCapabilities audioCapabilities) {
-    checkState(playbackLooper == Looper.myLooper());
+    Looper myLooper = Looper.myLooper();
+    if (playbackLooper != myLooper) {
+      String playbackLooperName =
+          playbackLooper == null ? "null" : playbackLooper.getThread().getName();
+      String myLooperName = myLooper == null ? "null" : myLooper.getThread().getName();
+      throw new IllegalStateException(
+          "Current looper ("
+              + myLooperName
+              + ") is not the playback looper ("
+              + playbackLooperName
+              + ")");
+    }
     if (!audioCapabilities.equals(this.audioCapabilities)) {
       this.audioCapabilities = audioCapabilities;
       if (listener != null) {