Configure MediaCodecs for realtime priority

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=180782164

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

@@ -240,14 +240,15 @@ public class MediaCodecAudioRenderer extends MediaCodecRenderer implements Media
   protected void configureCodec(MediaCodecInfo codecInfo, MediaCodec codec, Format format,
       MediaCrypto crypto) {
     codecNeedsDiscardChannelsWorkaround = codecNeedsDiscardChannelsWorkaround(codecInfo.name);
+    MediaFormat mediaFormat = getMediaFormatForPlayback(format);
     if (passthroughEnabled) {
       // Override the MIME type used to configure the codec if we are using a passthrough decoder.
-      passthroughMediaFormat = format.getFrameworkMediaFormatV16();
+      passthroughMediaFormat = mediaFormat;
       passthroughMediaFormat.setString(MediaFormat.KEY_MIME, MimeTypes.AUDIO_RAW);
       codec.configure(passthroughMediaFormat, null, crypto, 0);
       passthroughMediaFormat.setString(MediaFormat.KEY_MIME, format.sampleMimeType);
     } else {
-      codec.configure(format.getFrameworkMediaFormatV16(), null, crypto, 0);
+      codec.configure(mediaFormat, null, crypto, 0);
       passthroughMediaFormat = null;
     }
   }

library/core/src/main/java/com/google/android/exoplayer2/mediacodec/MediaCodecRenderer.java

@@ -430,6 +430,21 @@ public abstract class MediaCodecRenderer extends BaseRenderer {
     return codecInfo;
   }
 
+  /**
+   * Returns the framework {@link MediaFormat} that can be used to configure a {@link MediaCodec}
+   * for decoding the given {@link Format} for playback.
+   *
+   * @param format The format of the media.
+   * @return The framework media format.
+   */
+  protected final MediaFormat getMediaFormatForPlayback(Format format) {
+    MediaFormat mediaFormat = format.getFrameworkMediaFormatV16();
+    if (Util.SDK_INT >= 23) {
+      configureMediaFormatForPlaybackV23(mediaFormat);
+    }
+    return mediaFormat;
+  }
+
   @Override
   protected void onEnabled(boolean joining) throws ExoPlaybackException {
     decoderCounters = new DecoderCounters();
@@ -1108,6 +1123,11 @@ public abstract class MediaCodecRenderer extends BaseRenderer {
     return false;
   }
 
+  @TargetApi(23)
+  private static void configureMediaFormatForPlaybackV23(MediaFormat mediaFormat) {
+    mediaFormat.setInteger(MediaFormat.KEY_PRIORITY, 0 /* realtime priority */);
+  }
+
   /**
    * Returns whether the decoder is known to fail when flushed.
    * <p>

library/core/src/main/java/com/google/android/exoplayer2/video/MediaCodecVideoRenderer.java

@@ -906,19 +906,15 @@ public class MediaCodecVideoRenderer extends MediaCodecRenderer {
   @SuppressLint("InlinedApi")
   protected MediaFormat getMediaFormat(Format format, CodecMaxValues codecMaxValues,
       boolean deviceNeedsAutoFrcWorkaround, int tunnelingAudioSessionId) {
-    MediaFormat frameworkMediaFormat = format.getFrameworkMediaFormatV16();
+    MediaFormat frameworkMediaFormat = getMediaFormatForPlayback(format);
-    // Set the maximum adaptive video dimensions.
     frameworkMediaFormat.setInteger(MediaFormat.KEY_MAX_WIDTH, codecMaxValues.width);
     frameworkMediaFormat.setInteger(MediaFormat.KEY_MAX_HEIGHT, codecMaxValues.height);
-    // Set the maximum input size.
     if (codecMaxValues.inputSize != Format.NO_VALUE) {
       frameworkMediaFormat.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, codecMaxValues.inputSize);
     }
-    // Set FRC workaround.
     if (deviceNeedsAutoFrcWorkaround) {
       frameworkMediaFormat.setInteger("auto-frc", 0);
     }
-    // Configure tunneling if enabled.
     if (tunnelingAudioSessionId != C.AUDIO_SESSION_ID_UNSET) {
       configureTunnelingV21(frameworkMediaFormat, tunnelingAudioSessionId);
     }