Make MIDI renderer respect custom audio sink

libraries/decoder_midi/src/main/java/androidx/media3/decoder/midi/MidiRenderer.java

@@ -16,12 +16,15 @@
 package androidx.media3.decoder.midi;
 
 import android.content.Context;
+import android.os.Handler;
 import androidx.annotation.Nullable;
 import androidx.media3.common.C;
 import androidx.media3.common.Format;
 import androidx.media3.common.MimeTypes;
 import androidx.media3.common.util.UnstableApi;
 import androidx.media3.decoder.CryptoConfig;
+import androidx.media3.exoplayer.audio.AudioRendererEventListener;
+import androidx.media3.exoplayer.audio.AudioSink;
 import androidx.media3.exoplayer.audio.DecoderAudioRenderer;
 
 /** Decodes and renders MIDI audio. */
@@ -31,7 +34,11 @@ public final class MidiRenderer extends DecoderAudioRenderer<MidiDecoder> {
   private final Context context;
 
   /** Creates the renderer instance. */
-  public MidiRenderer(Context context) {
+  public MidiRenderer(Context context,
+      @Nullable Handler eventHandler,
+      @Nullable AudioRendererEventListener eventListener,
+      AudioSink audioSink) {
+    super(eventHandler, eventListener, audioSink);
     this.context = context.getApplicationContext();
   }
 

libraries/exoplayer/proguard-rules.txt

@@ -31,7 +31,7 @@
 }
 -dontnote androidx.media3.decoder.midi.MidiRenderer
 -keepclassmembers class androidx.media3.decoder.midi.MidiRenderer {
-  <init>(android.content.Context);
+  <init>(android.content.Context, android.os.Handler, androidx.media3.exoplayer.audio.AudioRendererEventListener, androidx.media3.exoplayer.audio.AudioSink);
 }
 -dontnote androidx.media3.decoder.mpegh.MpeghAudioRenderer
 -keepclassmembers class androidx.media3.decoder.mpegh.MpeghAudioRenderer {

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/DefaultRenderersFactory.java

@@ -557,9 +557,15 @@ public class DefaultRenderersFactory implements RenderersFactory {
       // Full class names used for constructor args so the LINT rule triggers if any of them move.
       // LINT.IfChange
       Class<?> clazz = Class.forName("androidx.media3.decoder.midi.MidiRenderer");
-      Constructor<?> constructor = clazz.getConstructor(Context.class);
+      Constructor<?> constructor =
+          clazz.getConstructor(
+              Context.class,
+              android.os.Handler.class,
+              androidx.media3.exoplayer.audio.AudioRendererEventListener.class,
+              androidx.media3.exoplayer.audio.AudioSink.class);
       // LINT.ThenChange(../../../../../../proguard-rules.txt)
-      Renderer renderer = (Renderer) constructor.newInstance(context);
+      Renderer renderer =
+          (Renderer) constructor.newInstance(context, eventHandler, eventListener, audioSink);
       out.add(extensionRendererIndex++, renderer);
       Log.i(TAG, "Loaded MidiRenderer.");
     } catch (ClassNotFoundException e) {