From 15d50d0bf0ffed037d2b865b70974672904f543d Mon Sep 17 00:00:00 2001
From: ibaker <ibaker@google.com>
Date: Fri, 4 Feb 2022 16:16:46 +0000
Subject: [PATCH] Remove @C.AudioManagerOffloadMode IntDef

This is only used in DefaultAudioSink, so we could move it there and
make it private - but at that point we might as well refer to the
underlying AudioManager constants instead.

#minor-release

PiperOrigin-RevId: 426407661
---
 .../java/com/google/android/exoplayer2/C.java | 20 -------------------
 .../exoplayer2/audio/DefaultAudioSink.java    | 16 +++++++--------
 2 files changed, 7 insertions(+), 29 deletions(-)

diff --git a/library/common/src/main/java/com/google/android/exoplayer2/C.java b/library/common/src/main/java/com/google/android/exoplayer2/C.java
index c94f251c58..44a546486f 100644
--- a/library/common/src/main/java/com/google/android/exoplayer2/C.java
+++ b/library/common/src/main/java/com/google/android/exoplayer2/C.java
@@ -499,26 +499,6 @@ public final class C {
   public static final int AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE =
       AudioManager.AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE;
 
-  /**
-   * Playback offload mode. One of {@link #PLAYBACK_OFFLOAD_NOT_SUPPORTED},{@link
-   * #PLAYBACK_OFFLOAD_SUPPORTED} or {@link #PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED}.
-   */
-  @IntDef({
-    PLAYBACK_OFFLOAD_NOT_SUPPORTED,
-    PLAYBACK_OFFLOAD_SUPPORTED,
-    PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED
-  })
-  @Retention(RetentionPolicy.SOURCE)
-  public @interface AudioManagerOffloadMode {}
-  /** See AudioManager#PLAYBACK_OFFLOAD_NOT_SUPPORTED */
-  public static final int PLAYBACK_OFFLOAD_NOT_SUPPORTED =
-      AudioManager.PLAYBACK_OFFLOAD_NOT_SUPPORTED;
-  /** See AudioManager#PLAYBACK_OFFLOAD_SUPPORTED */
-  public static final int PLAYBACK_OFFLOAD_SUPPORTED = AudioManager.PLAYBACK_OFFLOAD_SUPPORTED;
-  /** See AudioManager#PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED */
-  public static final int PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED =
-      AudioManager.PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED;
-
   /**
    * Flags which can apply to a buffer containing a media sample. Possible flag values are {@link
    * #BUFFER_FLAG_KEY_FRAME}, {@link #BUFFER_FLAG_END_OF_STREAM}, {@link #BUFFER_FLAG_LAST_SAMPLE},
diff --git a/library/core/src/main/java/com/google/android/exoplayer2/audio/DefaultAudioSink.java b/library/core/src/main/java/com/google/android/exoplayer2/audio/DefaultAudioSink.java
index 74d5b5c0da..3e6c7d1c7b 100644
--- a/library/core/src/main/java/com/google/android/exoplayer2/audio/DefaultAudioSink.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/audio/DefaultAudioSink.java
@@ -1815,13 +1815,13 @@ public final class DefaultAudioSink implements AudioSink {
     AudioFormat audioFormat = getAudioFormat(format.sampleRate, channelConfig, encoding);
 
     switch (getOffloadedPlaybackSupport(audioFormat, audioAttributes.getAudioAttributesV21())) {
-      case C.PLAYBACK_OFFLOAD_NOT_SUPPORTED:
+      case AudioManager.PLAYBACK_OFFLOAD_NOT_SUPPORTED:
         return false;
-      case C.PLAYBACK_OFFLOAD_SUPPORTED:
+      case AudioManager.PLAYBACK_OFFLOAD_SUPPORTED:
         boolean isGapless = format.encoderDelay != 0 || format.encoderPadding != 0;
         boolean gaplessSupportRequired = offloadMode == OFFLOAD_MODE_ENABLED_GAPLESS_REQUIRED;
         return !isGapless || !gaplessSupportRequired;
-      case C.PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED:
+      case AudioManager.PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED:
         return true;
       default:
         throw new IllegalStateException();
@@ -1829,22 +1829,20 @@ public final class DefaultAudioSink implements AudioSink {
   }
 
   @RequiresApi(29)
-  // Return values of AudioManager.getPlaybackOffloadSupport are equal to C.AudioManagerOffloadMode.
-  @SuppressLint("WrongConstant")
-  @C.AudioManagerOffloadMode
+  @SuppressLint("InlinedApi")
   private int getOffloadedPlaybackSupport(
       AudioFormat audioFormat, android.media.AudioAttributes audioAttributes) {
     if (Util.SDK_INT >= 31) {
       return AudioManager.getPlaybackOffloadSupport(audioFormat, audioAttributes);
     }
     if (!AudioManager.isOffloadedPlaybackSupported(audioFormat, audioAttributes)) {
-      return C.PLAYBACK_OFFLOAD_NOT_SUPPORTED;
+      return AudioManager.PLAYBACK_OFFLOAD_NOT_SUPPORTED;
     }
     // Manual testing has shown that Pixels on Android 11 support gapless offload.
     if (Util.SDK_INT == 30 && Util.MODEL.startsWith("Pixel")) {
-      return C.PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED;
+      return AudioManager.PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED;
     }
-    return C.PLAYBACK_OFFLOAD_SUPPORTED;
+    return AudioManager.PLAYBACK_OFFLOAD_SUPPORTED;
   }
 
   private static boolean isOffloadedPlayback(AudioTrack audioTrack) {