Speed up audio on double tap

app/src/main/java/org/thoughtcrime/securesms/audio/AudioSlidePlayer.java

@@ -23,6 +23,7 @@ import com.google.android.exoplayer2.DefaultRenderersFactory;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayerFactory;
 import com.google.android.exoplayer2.LoadControl;
+import com.google.android.exoplayer2.PlaybackParameters;
 import com.google.android.exoplayer2.Player;
 import com.google.android.exoplayer2.SimpleExoPlayer;
 import com.google.android.exoplayer2.audio.AudioAttributes;
@@ -284,6 +285,16 @@ public class AudioSlidePlayer implements SensorEventListener {
     }
   }
 
+  public float getPlaybackSpeed() {
+    if (mediaPlayer == null) { return 1.0f; }
+    return mediaPlayer.getPlaybackParameters().speed;
+  }
+
+  public void setPlaybackSpeed(float speed) {
+    if (mediaPlayer == null) { return; }
+    mediaPlayer.setPlaybackParameters(new PlaybackParameters(speed));
+  }
+
   private void notifyOnStart() {
     Util.runOnMain(() -> getListener().onPlayerStart(AudioSlidePlayer.this));
   }

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/messages/VoiceMessageView.kt

@@ -105,7 +105,8 @@ class VoiceMessageView : LinearLayout, AudioSlidePlayer.Listener {
     }
 
     fun handleDoubleTap() {
-        Log.d("Test", "handleDoubleTap()")
+        val player = this.player ?: return
+        player.playbackSpeed = if (player.playbackSpeed == 1.0f) 1.5f else 1.0f
     }
     // endregion
 }