1/*
2 * libjingle
3 * Copyright 2008 Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef TALK_MEDIA_DEVICES_FAKEDEVICEMANAGER_H_
29#define TALK_MEDIA_DEVICES_FAKEDEVICEMANAGER_H_
30
31#include <string>
32#include <vector>
33
34#include "talk/media/base/fakevideocapturer.h"
35#include "talk/media/base/mediacommon.h"
36#include "talk/media/devices/devicemanager.h"
37#include "webrtc/base/scoped_ptr.h"
38#include "webrtc/base/window.h"
39#include "webrtc/base/windowpicker.h"
40
41namespace cricket {
42
43class FakeDeviceManager : public DeviceManagerInterface {
44 public:
45  FakeDeviceManager() {}
46  virtual bool Init() {
47    return true;
48  }
49  virtual void Terminate() {
50  }
51  virtual int GetCapabilities() {
52    std::vector<Device> devices;
53    int caps = VIDEO_RECV;
54    if (!input_devices_.empty()) {
55      caps |= AUDIO_SEND;
56    }
57    if (!output_devices_.empty()) {
58      caps |= AUDIO_RECV;
59    }
60    if (!vidcap_devices_.empty()) {
61      caps |= VIDEO_SEND;
62    }
63    return caps;
64  }
65  virtual bool GetAudioInputDevices(std::vector<Device>* devs) {
66    *devs = input_devices_;
67    return true;
68  }
69  virtual bool GetAudioOutputDevices(std::vector<Device>* devs) {
70    *devs = output_devices_;
71    return true;
72  }
73  virtual bool GetAudioInputDevice(const std::string& name, Device* out) {
74    return GetAudioDevice(true, name, out);
75  }
76  virtual bool GetAudioOutputDevice(const std::string& name, Device* out) {
77    return GetAudioDevice(false, name, out);
78  }
79  virtual bool GetVideoCaptureDevices(std::vector<Device>* devs) {
80    *devs = vidcap_devices_;
81    return true;
82  }
83  virtual void SetVideoDeviceCapturerFactory(
84      VideoDeviceCapturerFactory* video_device_capturer_factory) {
85  }
86  virtual void SetScreenCapturerFactory(
87      ScreenCapturerFactory* screen_capturer_factory) {
88    screen_capturer_factory_.reset(screen_capturer_factory);
89  }
90  virtual void SetVideoCaptureDeviceMaxFormat(const std::string& usb_id,
91                                              const VideoFormat& max_format) {
92    max_formats_[usb_id] = max_format;
93  }
94  bool IsMaxFormatForDevice(const std::string& usb_id,
95                            const VideoFormat& max_format) const {
96    std::map<std::string, VideoFormat>::const_iterator found =
97        max_formats_.find(usb_id);
98    return (found != max_formats_.end()) ?
99        max_format == found->second :
100        false;
101  }
102  virtual void ClearVideoCaptureDeviceMaxFormat(const std::string& usb_id) {
103    max_formats_.erase(usb_id);
104  }
105  virtual VideoCapturer* CreateVideoCapturer(const Device& device) const {
106    return new FakeVideoCapturer();
107  }
108  virtual VideoCapturer* CreateScreenCapturer(
109      const ScreencastId& screenid) const {
110    if (!screen_capturer_factory_) {
111      return new FakeVideoCapturer();
112    }
113    return screen_capturer_factory_->Create(screenid);
114  }
115  virtual bool GetWindows(
116      std::vector<rtc::WindowDescription>* descriptions) {
117    descriptions->clear();
118    const uint32_t id = 1u;  // Note that 0 is not a valid ID.
119    const rtc::WindowId window_id =
120        rtc::WindowId::Cast(id);
121    std::string title = "FakeWindow";
122    rtc::WindowDescription window_description(window_id, title);
123    descriptions->push_back(window_description);
124    return true;
125  }
126  virtual VideoCapturer* CreateWindowCapturer(rtc::WindowId window) {
127    if (!window.IsValid()) {
128      return NULL;
129    }
130    return new FakeVideoCapturer;
131  }
132  virtual bool GetDesktops(
133      std::vector<rtc::DesktopDescription>* descriptions) {
134    descriptions->clear();
135    const int id = 0;
136    const int valid_index = 0;
137    const rtc::DesktopId desktop_id =
138        rtc::DesktopId::Cast(id, valid_index);
139    std::string title = "FakeDesktop";
140    rtc::DesktopDescription desktop_description(desktop_id, title);
141    descriptions->push_back(desktop_description);
142    return true;
143  }
144  virtual VideoCapturer* CreateDesktopCapturer(rtc::DesktopId desktop) {
145    if (!desktop.IsValid()) {
146      return NULL;
147    }
148    return new FakeVideoCapturer;
149  }
150
151  virtual bool GetDefaultVideoCaptureDevice(Device* device) {
152    if (vidcap_devices_.empty()) {
153      return false;
154    }
155    *device = vidcap_devices_[0];
156    return true;
157  }
158
159#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
160  bool QtKitToSgDevice(const std::string& qtkit_name, Device* out) {
161    out->name = qtkit_name;
162    out->id = "sg:" + qtkit_name;
163    return true;
164  }
165#endif
166
167  void SetAudioInputDevices(const std::vector<std::string>& devices) {
168    input_devices_.clear();
169    for (size_t i = 0; i < devices.size(); ++i) {
170      input_devices_.push_back(Device(devices[i],
171                                      static_cast<int>(i)));
172    }
173    SignalDevicesChange();
174  }
175  void SetAudioOutputDevices(const std::vector<std::string>& devices) {
176    output_devices_.clear();
177    for (size_t i = 0; i < devices.size(); ++i) {
178      output_devices_.push_back(Device(devices[i],
179                                       static_cast<int>(i)));
180    }
181    SignalDevicesChange();
182  }
183  void SetVideoCaptureDevices(const std::vector<std::string>& devices) {
184    vidcap_devices_.clear();
185    for (size_t i = 0; i < devices.size(); ++i) {
186      vidcap_devices_.push_back(Device(devices[i],
187                                       static_cast<int>(i)));
188    }
189    SignalDevicesChange();
190  }
191  virtual bool GetVideoCaptureDevice(const std::string& name,
192                                     Device* out) {
193    if (vidcap_devices_.empty())
194      return false;
195
196    // If the name is empty, return the default device.
197    if (name.empty() || name == kDefaultDeviceName) {
198      *out = vidcap_devices_[0];
199      return true;
200    }
201
202    return FindDeviceByName(vidcap_devices_, name, out);
203  }
204  bool GetAudioDevice(bool is_input, const std::string& name,
205                      Device* out) {
206    // If the name is empty, return the default device.
207    if (name.empty() || name == kDefaultDeviceName) {
208      *out = Device(name, -1);
209      return true;
210    }
211
212    return FindDeviceByName((is_input ? input_devices_ : output_devices_),
213                            name, out);
214  }
215  static bool FindDeviceByName(const std::vector<Device>& devices,
216                               const std::string& name,
217                               Device* out) {
218    for (std::vector<Device>::const_iterator it = devices.begin();
219         it != devices.end(); ++it) {
220      if (name == it->name) {
221        *out = *it;
222        return true;
223      }
224    }
225    return false;
226  }
227
228 private:
229  std::vector<Device> input_devices_;
230  std::vector<Device> output_devices_;
231  std::vector<Device> vidcap_devices_;
232  std::map<std::string, VideoFormat> max_formats_;
233  rtc::scoped_ptr<
234    ScreenCapturerFactory> screen_capturer_factory_;
235};
236
237}  // namespace cricket
238
239#endif  // TALK_MEDIA_DEVICES_FAKEDEVICEMANAGER_H_
240