Use AudioTrack.isDirectPlaybackSupported on TVs only

Issue: #9239

#minor-release

PiperOrigin-RevId: 388437614

RELEASENOTES.md

@@ -51,6 +51,10 @@
         behavior of track and location fallback. Location fallback is currently
         behavior of track and location fallback. Location fallback is currently
         only supported for DASH manifests with multiple base URLs.
         only supported for DASH manifests with multiple base URLs.
     *   Disable platform transcoding when playing content URIs on Android 12.
     *   Disable platform transcoding when playing content URIs on Android 12.
+    *   Restrict use of `AudioTrack.isDirectPlaybackSupported` to TVs, to avoid
+        listing audio offload encodings as supported for passthrough mode on
+        mobile devices
+        ([#9239](https://github.com/google/ExoPlayer/issues/9239)).
 *   Remove deprecated symbols:
 *   Remove deprecated symbols:
     *   Remove `Player.getPlaybackError`. Use `Player.getPlayerError` instead.
     *   Remove `Player.getPlaybackError`. Use `Player.getPlayerError` instead.
     *   Remove `Player.getCurrentTag`. Use `Player.getCurrentMediaItem` and
     *   Remove `Player.getCurrentTag`. Use `Player.getCurrentMediaItem` and

library/core/src/main/java/com/google/android/exoplayer2/audio/AudioCapabilities.java

@@ -88,9 +88,12 @@ public final class AudioCapabilities {
         && Global.getInt(context.getContentResolver(), EXTERNAL_SURROUND_SOUND_KEY, 0) == 1) {
         && Global.getInt(context.getContentResolver(), EXTERNAL_SURROUND_SOUND_KEY, 0) == 1) {
       return EXTERNAL_SURROUND_SOUND_CAPABILITIES;
       return EXTERNAL_SURROUND_SOUND_CAPABILITIES;
     }
     }
-    if (Util.SDK_INT >= 29) {
+    // AudioTrack.isDirectPlaybackSupported returns true for encodings that are supported for audio
+    // offload, as well as for encodings we want to list for passthrough mode. Therefore we only use
+    // it on TV devices, which generally shouldn't support audio offload for surround encodings.
+    if (Util.SDK_INT >= 29 && Util.isTv(context)) {
       return new AudioCapabilities(
       return new AudioCapabilities(
-          AudioTrackWrapperV29.getDirectPlaybackSupportedEncodingsV29(), DEFAULT_MAX_CHANNEL_COUNT);
+          Api29.getDirectPlaybackSupportedEncodingsV29(), DEFAULT_MAX_CHANNEL_COUNT);
     }
     }
     if (intent == null || intent.getIntExtra(AudioManager.EXTRA_AUDIO_PLUG_STATE, 0) == 0) {
     if (intent == null || intent.getIntExtra(AudioManager.EXTRA_AUDIO_PLUG_STATE, 0) == 0) {
       return DEFAULT_AUDIO_CAPABILITIES;
       return DEFAULT_AUDIO_CAPABILITIES;
@@ -185,7 +188,7 @@ public final class AudioCapabilities {
   }
   }
 
 
   @RequiresApi(29)
   @RequiresApi(29)
-  private static final class AudioTrackWrapperV29 {
+  private static final class Api29 {
     @DoNotInline
     @DoNotInline
     public static int[] getDirectPlaybackSupportedEncodingsV29() {
     public static int[] getDirectPlaybackSupportedEncodingsV29() {
       ImmutableList.Builder<Integer> supportedEncodingsListBuilder = ImmutableList.builder();
       ImmutableList.Builder<Integer> supportedEncodingsListBuilder = ImmutableList.builder();