1 files changed, 43 insertions, 0 deletions
diff --git a/dom/media/AudioCaptureTrack.h b/dom/media/AudioCaptureTrack.h
new file mode 100644
index 0000000000..c4de4b0581
--- /dev/null
+++ b/dom/media/AudioCaptureTrack.h
@@ -0,0 +1,43 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef MOZILLA_AUDIOCAPTURETRACK_H_
+#define MOZILLA_AUDIOCAPTURETRACK_H_
+
+#include "MediaTrackGraph.h"
+#include "AudioMixer.h"
+#include <algorithm>
+
+namespace mozilla {
+
+class AbstractThread;
+class DOMMediaStream;
+
+/**
+ * See MediaTrackGraph::CreateAudioCaptureTrack.
+ */
+class AudioCaptureTrack : public ProcessedMediaTrack,
+                          public MixerCallbackReceiver {
+ public:
+  explicit AudioCaptureTrack(TrackRate aRate);
+  virtual ~AudioCaptureTrack();
+
+  void Start();
+
+  void ProcessInput(GraphTime aFrom, GraphTime aTo, uint32_t aFlags) override;
+
+  uint32_t NumberOfChannels() const override;
+
+ protected:
+  void MixerCallback(AudioDataValue* aMixedBuffer, AudioSampleFormat aFormat,
+                     uint32_t aChannels, uint32_t aFrames,
+                     uint32_t aSampleRate) override;
+  AudioMixer mMixer;
+  bool mStarted;
+  bool mTrackCreated;
+};
+}  // namespace mozilla
+
+#endif /* MOZILLA_AUDIOCAPTURETRACK_H_ */