Add streamType/capabilities for extension audio renderers

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=126913487

extensions/ffmpeg/src/main/java/com/google/android/exoplayer2/ext/ffmpeg/FfmpegAudioTrackRenderer.java

@@ -18,6 +18,8 @@ package com.google.android.exoplayer2.ext.ffmpeg;
 import com.google.android.exoplayer2.AudioTrackRendererEventListener;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
+import com.google.android.exoplayer2.audio.AudioCapabilities;
+import com.google.android.exoplayer2.audio.AudioTrack;
 import com.google.android.exoplayer2.extensions.AudioDecoderTrackRenderer;
 import com.google.android.exoplayer2.util.MimeTypes;
 
@@ -37,11 +39,30 @@ public final class FfmpegAudioTrackRenderer extends AudioDecoderTrackRenderer {
     this(null, null);
   }
 
+  /**
+   * @param eventHandler A handler to use when delivering events to {@code eventListener}. May be
+   *     null if delivery of events is not required.
+   * @param eventListener A listener of events. May be null if delivery of events is not required.
+   */
   public FfmpegAudioTrackRenderer(Handler eventHandler,
       AudioTrackRendererEventListener eventListener) {
     super(eventHandler, eventListener);
   }
 
+  /**
+   * @param eventHandler A handler to use when delivering events to {@code eventListener}. May be
+   *     null if delivery of events is not required.
+   * @param eventListener A listener of events. May be null if delivery of events is not required.
+   * @param audioCapabilities The audio capabilities for playback on this device. May be null if the
+   *     default capabilities (no encoded audio passthrough support) should be assumed.
+   * @param streamType The type of audio stream for the {@link AudioTrack}.
+   */
+  public FfmpegAudioTrackRenderer(Handler eventHandler,
+      AudioTrackRendererEventListener eventListener, AudioCapabilities audioCapabilities,
+      int streamType) {
+    super(eventHandler, eventListener, audioCapabilities, streamType);
+  }
+
   @Override
   protected int supportsFormat(Format format) {
     if (!FfmpegDecoder.IS_AVAILABLE) {

extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/LibflacAudioTrackRenderer.java

@@ -17,6 +17,8 @@ package com.google.android.exoplayer2.ext.flac;
 
 import com.google.android.exoplayer2.AudioTrackRendererEventListener;
 import com.google.android.exoplayer2.Format;
+import com.google.android.exoplayer2.audio.AudioCapabilities;
+import com.google.android.exoplayer2.audio.AudioTrack;
 import com.google.android.exoplayer2.extensions.AudioDecoderTrackRenderer;
 import com.google.android.exoplayer2.util.MimeTypes;
 
@@ -49,6 +51,21 @@ public class LibflacAudioTrackRenderer extends AudioDecoderTrackRenderer {
       AudioTrackRendererEventListener eventListener) {
     super(eventHandler, eventListener);
   }
+
+  /**
+   * @param eventHandler A handler to use when delivering events to {@code eventListener}. May be
+   *     null if delivery of events is not required.
+   * @param eventListener A listener of events. May be null if delivery of events is not required.
+   * @param audioCapabilities The audio capabilities for playback on this device. May be null if the
+   *     default capabilities (no encoded audio passthrough support) should be assumed.
+   * @param streamType The type of audio stream for the {@link AudioTrack}.
+   */
+  public LibflacAudioTrackRenderer(Handler eventHandler,
+      AudioTrackRendererEventListener eventListener, AudioCapabilities audioCapabilities,
+      int streamType) {
+    super(eventHandler, eventListener, audioCapabilities, streamType);
+  }
+
   @Override
   protected int supportsFormat(Format format) {
     return isLibflacAvailable() && MimeTypes.AUDIO_FLAC.equalsIgnoreCase(format.sampleMimeType)

extensions/opus/src/main/java/com/google/android/exoplayer2/ext/opus/LibopusAudioTrackRenderer.java

@@ -17,6 +17,8 @@ package com.google.android.exoplayer2.ext.opus;
 
 import com.google.android.exoplayer2.AudioTrackRendererEventListener;
 import com.google.android.exoplayer2.Format;
+import com.google.android.exoplayer2.audio.AudioCapabilities;
+import com.google.android.exoplayer2.audio.AudioTrack;
 import com.google.android.exoplayer2.extensions.AudioDecoderTrackRenderer;
 import com.google.android.exoplayer2.util.MimeTypes;
 
@@ -58,6 +60,20 @@ public final class LibopusAudioTrackRenderer extends AudioDecoderTrackRenderer {
     super(eventHandler, eventListener);
   }
 
+  /**
+   * @param eventHandler A handler to use when delivering events to {@code eventListener}. May be
+   *     null if delivery of events is not required.
+   * @param eventListener A listener of events. May be null if delivery of events is not required.
+   * @param audioCapabilities The audio capabilities for playback on this device. May be null if the
+   *     default capabilities (no encoded audio passthrough support) should be assumed.
+   * @param streamType The type of audio stream for the {@link AudioTrack}.
+   */
+  public LibopusAudioTrackRenderer(Handler eventHandler,
+      AudioTrackRendererEventListener eventListener, AudioCapabilities audioCapabilities,
+      int streamType) {
+    super(eventHandler, eventListener, audioCapabilities, streamType);
+  }
+
   @Override
   protected int supportsFormat(Format format) {
     return isLibopusAvailable() && MimeTypes.AUDIO_OPUS.equalsIgnoreCase(format.sampleMimeType)

library/src/main/java/com/google/android/exoplayer2/audio/AudioTrack.java

@@ -24,7 +24,6 @@ import com.google.android.exoplayer2.util.Util;
 
 import android.annotation.TargetApi;
 import android.media.AudioFormat;
-import android.media.AudioManager;
 import android.media.AudioTimestamp;
 import android.media.PlaybackParams;
 import android.os.ConditionVariable;
@@ -231,13 +230,6 @@ public final class AudioTrack {
   private boolean useResampledBuffer;
 
   /**
-   * Creates an audio track with default audio capabilities (no encoded audio passthrough support).
-   */
-  public AudioTrack() {
-    this(null, AudioManager.STREAM_MUSIC);
-  }
-
-  /**
    * Creates an audio track using the specified audio capabilities and stream type.
    *
    * @param audioCapabilities The current audio playback capabilities.

library/src/main/java/com/google/android/exoplayer2/extensions/AudioDecoderTrackRenderer.java

@@ -26,10 +26,12 @@ import com.google.android.exoplayer2.FormatHolder;
 import com.google.android.exoplayer2.MediaClock;
 import com.google.android.exoplayer2.TrackRenderer;
 import com.google.android.exoplayer2.TrackStream;
+import com.google.android.exoplayer2.audio.AudioCapabilities;
 import com.google.android.exoplayer2.audio.AudioTrack;
 import com.google.android.exoplayer2.util.MimeTypes;
 import com.google.android.exoplayer2.util.TraceUtil;
 
+import android.media.AudioManager;
 import android.media.PlaybackParams;
 import android.os.Handler;
 import android.os.SystemClock;
@@ -45,7 +47,7 @@ public abstract class AudioDecoderTrackRenderer extends TrackRenderer implements
   private CodecCounters codecCounters;
   private Format inputFormat;
   private SimpleDecoder<DecoderInputBuffer, ? extends SimpleOutputBuffer,
-      ? extends AudioDecoderException> decoder;
+        ? extends AudioDecoderException> decoder;
   private DecoderInputBuffer inputBuffer;
   private SimpleOutputBuffer outputBuffer;
 
@@ -71,9 +73,23 @@ public abstract class AudioDecoderTrackRenderer extends TrackRenderer implements
    */
   public AudioDecoderTrackRenderer(Handler eventHandler,
       AudioTrackRendererEventListener eventListener) {
+    this (eventHandler, eventListener, null, AudioManager.STREAM_MUSIC);
+  }
+
+  /**
+   * @param eventHandler A handler to use when delivering events to {@code eventListener}. May be
+   *     null if delivery of events is not required.
+   * @param eventListener A listener of events. May be null if delivery of events is not required.
+   * @param audioCapabilities The audio capabilities for playback on this device. May be null if the
+   *     default capabilities (no encoded audio passthrough support) should be assumed.
+   * @param streamType The type of audio stream for the {@link AudioTrack}.
+   */
+  public AudioDecoderTrackRenderer(Handler eventHandler,
+      AudioTrackRendererEventListener eventListener, AudioCapabilities audioCapabilities,
+      int streamType) {
     eventDispatcher = new EventDispatcher(eventHandler, eventListener);
     audioSessionId = AudioTrack.SESSION_ID_NOT_SET;
-    audioTrack = new AudioTrack();
+    audioTrack = new AudioTrack(audioCapabilities, streamType);
     formatHolder = new FormatHolder();
   }