1 files changed, 83 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/android/src/java/org/webrtc/audio/VolumeLogger.java b/third_party/libwebrtc/sdk/android/src/java/org/webrtc/audio/VolumeLogger.java
new file mode 100644
index 0000000000..06d5cd3a8e
--- /dev/null
+++ b/third_party/libwebrtc/sdk/android/src/java/org/webrtc/audio/VolumeLogger.java
@@ -0,0 +1,83 @@
+/*
+ *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+package org.webrtc.audio;
+
+import android.media.AudioManager;
+import androidx.annotation.Nullable;
+import java.util.Timer;
+import java.util.TimerTask;
+import org.webrtc.Logging;
+
+// TODO(magjed): Do we really need to spawn a new thread just to log volume? Can we re-use the
+// AudioTrackThread instead?
+/**
+ * Private utility class that periodically checks and logs the volume level of the audio stream that
+ * is currently controlled by the volume control. A timer triggers logs once every 30 seconds and
+ * the timer's associated thread is named "WebRtcVolumeLevelLoggerThread".
+ */
+class VolumeLogger {
+  private static final String TAG = "VolumeLogger";
+  private static final String THREAD_NAME = "WebRtcVolumeLevelLoggerThread";
+  private static final int TIMER_PERIOD_IN_SECONDS = 30;
+
+  private final AudioManager audioManager;
+  private @Nullable Timer timer;
+
+  public VolumeLogger(AudioManager audioManager) {
+    this.audioManager = audioManager;
+  }
+
+  public void start() {
+    Logging.d(TAG, "start" + WebRtcAudioUtils.getThreadInfo());
+    if (timer != null) {
+      return;
+    }
+    Logging.d(TAG, "audio mode is: " + WebRtcAudioUtils.modeToString(audioManager.getMode()));
+
+    timer = new Timer(THREAD_NAME);
+    timer.schedule(new LogVolumeTask(audioManager.getStreamMaxVolume(AudioManager.STREAM_RING),
+                       audioManager.getStreamMaxVolume(AudioManager.STREAM_VOICE_CALL)),
+        0, TIMER_PERIOD_IN_SECONDS * 1000);
+  }
+
+  private class LogVolumeTask extends TimerTask {
+    private final int maxRingVolume;
+    private final int maxVoiceCallVolume;
+
+    LogVolumeTask(int maxRingVolume, int maxVoiceCallVolume) {
+      this.maxRingVolume = maxRingVolume;
+      this.maxVoiceCallVolume = maxVoiceCallVolume;
+    }
+
+    @Override
+    public void run() {
+      final int mode = audioManager.getMode();
+      if (mode == AudioManager.MODE_RINGTONE) {
+        Logging.d(TAG,
+            "STREAM_RING stream volume: " + audioManager.getStreamVolume(AudioManager.STREAM_RING)
+                + " (max=" + maxRingVolume + ")");
+      } else if (mode == AudioManager.MODE_IN_COMMUNICATION) {
+        Logging.d(TAG,
+            "VOICE_CALL stream volume: "
+                + audioManager.getStreamVolume(AudioManager.STREAM_VOICE_CALL)
+                + " (max=" + maxVoiceCallVolume + ")");
+      }
+    }
+  }
+
+  public void stop() {
+    Logging.d(TAG, "stop" + WebRtcAudioUtils.getThreadInfo());
+    if (timer != null) {
+      timer.cancel();
+      timer = null;
+    }
+  }
+}