Move talk/media to webrtc/media

talk/media/devices/devicemanager.h

-/*
- * libjingle
- * Copyright 2004 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. Redistributions in binary form must reproduce the above copyright notice,
- *     this list of conditions and the following disclaimer in the documentation
- *     and/or other materials provided with the distribution.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef TALK_MEDIA_DEVICES_DEVICEMANAGER_H_
-#define TALK_MEDIA_DEVICES_DEVICEMANAGER_H_
-
-#include <map>
-#include <string>
-#include <vector>
-
-#include "talk/media/base/device.h"
-#include "talk/media/base/screencastid.h"
-#include "talk/media/base/videocapturerfactory.h"
-#include "talk/media/base/videocommon.h"
-#include "webrtc/base/scoped_ptr.h"
-#include "webrtc/base/sigslot.h"
-#include "webrtc/base/stringencode.h"
-#include "webrtc/base/window.h"
-
-namespace rtc {
-
-class DesktopDescription;
-class WindowDescription;
-class WindowPicker;
-
-}
-namespace cricket {
-
-class VideoCapturer;
-
-// DeviceManagerInterface - interface to manage the audio and
-// video devices on the system.
-class DeviceManagerInterface {
- public:
-  virtual ~DeviceManagerInterface() { }
-
-  // Initialization
-  virtual bool Init() = 0;
-  virtual void Terminate() = 0;
-
-  // Capabilities
-  virtual int GetCapabilities() = 0;
-
-  // Device enumeration
-  virtual bool GetAudioInputDevices(std::vector<Device>* devices) = 0;
-  virtual bool GetAudioOutputDevices(std::vector<Device>* devices) = 0;
-
-  virtual bool GetAudioInputDevice(const std::string& name, Device* out) = 0;
-  virtual bool GetAudioOutputDevice(const std::string& name, Device* out) = 0;
-
-  virtual bool GetVideoCaptureDevices(std::vector<Device>* devs) = 0;
-  virtual bool GetVideoCaptureDevice(const std::string& name, Device* out) = 0;
-
-  // If the device manager needs to create video capturers, here is
-  // how to control which video capturers are created.  These take
-  // ownership of the factories.
-  virtual void SetVideoDeviceCapturerFactory(
-      VideoDeviceCapturerFactory* video_device_capturer_factory) = 0;
-  virtual void SetScreenCapturerFactory(
-      ScreenCapturerFactory* screen_capturer_factory) = 0;
-
-  // Caps the capture format according to max format for capturers created
-  // by CreateVideoCapturer(). See ConstrainSupportedFormats() in
-  // videocapturer.h for more detail.
-  // Note that once a VideoCapturer has been created, calling this API will
-  // not affect it.
-  virtual void SetVideoCaptureDeviceMaxFormat(
-      const std::string& usb_id,
-      const VideoFormat& max_format) = 0;
-  virtual void ClearVideoCaptureDeviceMaxFormat(const std::string& usb_id) = 0;
-
-  // Device creation
-  virtual VideoCapturer* CreateVideoCapturer(const Device& device) const = 0;
-
-  virtual bool GetWindows(
-      std::vector<rtc::WindowDescription>* descriptions) = 0;
-  virtual bool GetDesktops(
-      std::vector<rtc::DesktopDescription>* descriptions) = 0;
-  virtual VideoCapturer* CreateScreenCapturer(
-      const ScreencastId& screenid) const = 0;
-
-  sigslot::signal0<> SignalDevicesChange;
-
-  static const char kDefaultDeviceName[];
-};
-
-class DeviceWatcher {
- public:
-  explicit DeviceWatcher(DeviceManagerInterface* dm) {}
-  virtual ~DeviceWatcher() {}
-  virtual bool Start() { return true; }
-  virtual void Stop() {}
-};
-
-class DeviceManagerFactory {
- public:
-  static DeviceManagerInterface* Create();
-
- private:
-  DeviceManagerFactory() {}
-};
-
-class DeviceManager : public DeviceManagerInterface {
- public:
-  DeviceManager();
-  virtual ~DeviceManager();
-
-  // Initialization
-  virtual bool Init();
-  virtual void Terminate();
-
-  // Capabilities
-  virtual int GetCapabilities();
-
-  // Device enumeration
-  virtual bool GetAudioInputDevices(std::vector<Device>* devices);
-  virtual bool GetAudioOutputDevices(std::vector<Device>* devices);
-
-  virtual bool GetAudioInputDevice(const std::string& name, Device* out);
-  virtual bool GetAudioOutputDevice(const std::string& name, Device* out);
-
-  virtual bool GetVideoCaptureDevices(std::vector<Device>* devs);
-  virtual bool GetVideoCaptureDevice(const std::string& name, Device* out);
-
-  virtual void SetVideoDeviceCapturerFactory(
-      VideoDeviceCapturerFactory* video_device_capturer_factory) {
-    video_device_capturer_factory_.reset(video_device_capturer_factory);
-  }
-  virtual void SetScreenCapturerFactory(
-      ScreenCapturerFactory* screen_capturer_factory) {
-    screen_capturer_factory_.reset(screen_capturer_factory);
-  }
-
-
-  virtual void SetVideoCaptureDeviceMaxFormat(const std::string& usb_id,
-                                              const VideoFormat& max_format);
-  virtual void ClearVideoCaptureDeviceMaxFormat(const std::string& usb_id);
-
-  // TODO(pthatcher): Rename to CreateVideoDeviceCapturer.
-  virtual VideoCapturer* CreateVideoCapturer(const Device& device) const;
-
-  virtual bool GetWindows(
-      std::vector<rtc::WindowDescription>* descriptions);
-  virtual bool GetDesktops(
-      std::vector<rtc::DesktopDescription>* descriptions);
-  virtual VideoCapturer* CreateScreenCapturer(
-      const ScreencastId& screenid) const;
-
-  // The exclusion_list MUST be a NULL terminated list.
-  static bool FilterDevices(std::vector<Device>* devices,
-      const char* const exclusion_list[]);
-  bool initialized() const { return initialized_; }
-
- protected:
-  virtual bool GetAudioDevices(bool input, std::vector<Device>* devs);
-  virtual bool GetAudioDevice(bool is_input, const std::string& name,
-                              Device* out);
-  virtual bool GetDefaultVideoCaptureDevice(Device* device);
-  bool IsInWhitelist(const std::string& key, VideoFormat* video_format) const;
-  virtual bool GetMaxFormat(const Device& device,
-                            VideoFormat* video_format) const;
-
-  void set_initialized(bool initialized) { initialized_ = initialized; }
-
-  void set_watcher(DeviceWatcher* watcher) { watcher_.reset(watcher); }
-  DeviceWatcher* watcher() { return watcher_.get(); }
-
- private:
-  // The exclusion_list MUST be a NULL terminated list.
-  static bool ShouldDeviceBeIgnored(const std::string& device_name,
-      const char* const exclusion_list[]);
-  bool GetFakeVideoCaptureDevice(const std::string& name, Device* out) const;
-  VideoCapturer* MaybeConstructFakeVideoCapturer(const Device& device) const;
-
-  bool initialized_;
-  rtc::scoped_ptr<
-    VideoDeviceCapturerFactory> video_device_capturer_factory_;
-  rtc::scoped_ptr<
-    ScreenCapturerFactory> screen_capturer_factory_;
-  std::map<std::string, VideoFormat> max_formats_;
-  rtc::scoped_ptr<DeviceWatcher> watcher_;
-  rtc::scoped_ptr<rtc::WindowPicker> window_picker_;
-};
-
-}  // namespace cricket
-
-#endif  // TALK_MEDIA_DEVICES_DEVICEMANAGER_H_