MediaStreamDispatcher

content/renderer/media/media_stream_dispatcher_eventhandler.h

+// Copyright (c) 2011 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 CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_EVENTHANDLER_H_
+#define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_EVENTHANDLER_H_
+
+#include <string>
+
+#include "content/common/media/media_stream_options.h"
+
+class MediaStreamDispatcherEventHandler {
+ public:
+  // A new media stream have been created.
+  virtual void OnStreamGenerated(
+      int request_id,
+      const std::string& label,
+      const media_stream::StreamDeviceInfoArray& audio_device_array,
+      const media_stream::StreamDeviceInfoArray& video_device_array) = 0;
+
+  // Creation of a new media stream failed. The user might have denied access
+  // to the requested devices or no device is available.
+  virtual void OnStreamGenerationFailed(int request_id) = 0;
+
+  // An error have occurred on a video device. This is called if a runtime
+  // error occurs.
+  virtual void OnVideoDeviceFailed(const std::string& label,
+                                   int index) = 0;
+
+  // An error have occurred on an audio device. This is called if a runtime
+  // error occurs.
+  virtual void OnAudioDeviceFailed(const std::string& label,
+                                   int index) = 0;
+
+ protected:
+  virtual ~MediaStreamDispatcherEventHandler();
+};
+
+#endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_EVENTHANDLER_H_