1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_FACTORY_H_
6 #define MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_FACTORY_H_
8 #include "base/threading/thread_checker.h"
9 #include "media/video/capture/video_capture_device.h"
13 // VideoCaptureDeviceFactory is the base class for creation of video capture
14 // devices in the different platforms. VCDFs are created by MediaStreamManager
15 // on IO thread and plugged into VideoCaptureManager, who owns and operates them
16 // in Device Thread (a.k.a. Audio Thread).
17 class MEDIA_EXPORT VideoCaptureDeviceFactory {
19 VideoCaptureDeviceFactory();
20 virtual ~VideoCaptureDeviceFactory() {}
22 // Creates a VideoCaptureDevice object. Returns NULL if something goes wrong.
23 virtual scoped_ptr<VideoCaptureDevice> Create(
24 const VideoCaptureDevice::Name& device_name);
26 // Gets the names of all video capture devices connected to this computer.
27 virtual void GetDeviceNames(VideoCaptureDevice::Names* device_names);
29 // Gets the supported formats of a particular device attached to the system.
30 // This method should be called before allocating or starting a device. In
31 // case format enumeration is not supported, or there was a problem, the
32 // formats array will be empty.
33 virtual void GetDeviceSupportedFormats(
34 const VideoCaptureDevice::Name& device,
35 VideoCaptureFormats* supported_formats);
38 base::ThreadChecker thread_checker_;
41 DISALLOW_COPY_AND_ASSIGN(VideoCaptureDeviceFactory);
46 #endif // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_FACTORY_H_