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+// Copyright 2014 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_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_FACTORY_H_
+#define MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_FACTORY_H_
+
+#include "base/threading/thread_checker.h"
+#include "media/video/capture/video_capture_device.h"
+
+namespace media {
+
+// VideoCaptureDeviceFactory is the base class for creation of video capture
+// devices in the different platforms. VCDFs are created by MediaStreamManager
+// on IO thread and plugged into VideoCaptureManager, who owns and operates them
+// in Device Thread (a.k.a. Audio Thread).
+class MEDIA_EXPORT VideoCaptureDeviceFactory {
+ public:
+ static scoped_ptr<VideoCaptureDeviceFactory> CreateFactory(
+ scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
+
+ VideoCaptureDeviceFactory();
+ virtual ~VideoCaptureDeviceFactory();
+
+ // Creates a VideoCaptureDevice object. Returns NULL if something goes wrong.
+ virtual scoped_ptr<VideoCaptureDevice> Create(
+ const VideoCaptureDevice::Name& device_name) = 0;
+
+ // Asynchronous version of GetDeviceNames calling back to |callback|.
+ virtual void EnumerateDeviceNames(const base::Callback<
+ void(scoped_ptr<media::VideoCaptureDevice::Names>)>& callback);
+
+ // Gets the supported formats of a particular device attached to the system.
+ // This method should be called before allocating or starting a device. In
+ // case format enumeration is not supported, or there was a problem, the
+ // formats array will be empty.
+ virtual void GetDeviceSupportedFormats(
+ const VideoCaptureDevice::Name& device,
+ VideoCaptureFormats* supported_formats) = 0;
+
+ protected:
+ // Gets the names of all video capture devices connected to this computer.
+ // Used by the default implementation of EnumerateDeviceNames().
+ virtual void GetDeviceNames(VideoCaptureDevice::Names* device_names) = 0;
+
+ base::ThreadChecker thread_checker_;
+
+ private:
+ DISALLOW_COPY_AND_ASSIGN(VideoCaptureDeviceFactory);
+};
+
+} // namespace media
+
+#endif // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_FACTORY_H_