Index: media/audio/audio_system.h |
diff --git a/media/audio/audio_system.h b/media/audio/audio_system.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3827e69c85fc8134f6e5c7e5b5705b4cb2dbb442 |
--- /dev/null |
+++ b/media/audio/audio_system.h |
@@ -0,0 +1,40 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef MEDIA_AUDIO_AUDIO_SYSTEM_H_ |
+#define MEDIA_AUDIO_AUDIO_SYSTEM_H_ |
+ |
+#include "base/callback.h" |
+#include "media/audio/audio_device_description.h" |
+#include "media/base/audio_parameters.h" |
+#include "media/base/media_export.h" |
+ |
+namespace base { |
+class SingleThreadTaskRunner; |
+} |
+ |
+namespace media { |
+class AudioManager; |
+ |
+// Work in progress: Provides asynchronous interface to AudioManager. All the |
+// AudioManager clients will be switched to it, in preparation for moving |
+// to Mojo audio service. |
+class MEDIA_EXPORT AudioSystem { |
+ public: |
+ // Replies are asynchronously sent to the thread the call is issued on. |
+ using OnAudioParamsCallback = base::Callback<void(const AudioParameters&)>; |
+ |
+ virtual base::SingleThreadTaskRunner* GetTaskRunner() const = 0; |
+ |
+ // Callback will receive invalid parameters if the device is not found. |
+ virtual void GetInputStreamParameters(const std::string& device_id, |
tommi (sloooow) - chröme
2017/02/05 20:14:54
Since we're making a new interface, would it make
o1ka
2017/02/06 12:06:08
Right! Done.
|
+ OnAudioParamsCallback on_params_cb) = 0; |
+ |
+ // Must not be used for anything but stream creation. |
+ virtual AudioManager* GetAudioManager() = 0; |
+}; |
+ |
+} // namespace media |
+ |
+#endif // MEDIA_AUDIO_AUDIO_SYSTEM_H_ |