talk/session/phone/fakedevicemanager.h

/*
 * libjingle
 * Copyright 2008--2011, 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_SESSION_PHONE_FAKEDEVICEMANAGER_H_
#define TALK_SESSION_PHONE_FAKEDEVICEMANAGER_H_

#include <string>
#include <vector>

#include "talk/session/phone/devicemanager.h"
#include "talk/session/phone/mediacommon.h"

namespace cricket {

class FakeDeviceManager : public DeviceManagerInterface {
 public:
  FakeDeviceManager() {}
  virtual bool Init() {
    return true;
  }
  virtual void Terminate() {
  }
  virtual int GetCapabilities() {
    std::vector<Device> devices;
    int caps = VIDEO_RECV;
    if (!input_devices_.empty()) {
      caps |= AUDIO_SEND;
    }
    if (!output_devices_.empty()) {
      caps |= AUDIO_RECV;
    }
    if (!vidcap_devices_.empty()) {
      caps |= VIDEO_SEND;
    }
    return caps;
  }
  virtual bool GetAudioInputDevices(std::vector<Device>* devs) {
    *devs = input_devices_;
    return true;
  }
  virtual bool GetAudioOutputDevices(std::vector<Device>* devs) {
    *devs = output_devices_;
    return true;
  }
  virtual bool GetAudioInputDevice(const std::string& name, Device* out) {
    return GetAudioDevice(true, name, out);
  }
  virtual bool GetAudioOutputDevice(const std::string& name, Device* out) {
    return GetAudioDevice(false, name, out);
  }
  virtual bool GetVideoCaptureDevices(std::vector<Device>* devs) {
    *devs = vidcap_devices_;
    return true;
  }

  virtual bool GetDefaultVideoCaptureDevice(Device* device) {
    if (vidcap_devices_.empty()) {
      return false;
    }
    *device = vidcap_devices_[0];
    return true;
  }

#ifdef OSX
  bool QtKitToSgDevice(const std::string& qtkit_name, Device* out) {
    out->name = qtkit_name;
    out->id = "sg:" + qtkit_name;
    return true;
  }
#endif

  void SetAudioInputDevices(const std::vector<std::string>& devices) {
    input_devices_.clear();
    for (size_t i = 0; i < devices.size(); ++i) {
      input_devices_.push_back(Device(devices[i], i));
    }
    SignalDevicesChange();
  }
  void SetAudioOutputDevices(const std::vector<std::string>& devices) {
    output_devices_.clear();
    for (size_t i = 0; i < devices.size(); ++i) {
      output_devices_.push_back(Device(devices[i], i));
    }
    SignalDevicesChange();
  }
  void SetVideoCaptureDevices(const std::vector<std::string>& devices) {
    vidcap_devices_.clear();
    for (size_t i = 0; i < devices.size(); ++i) {
      vidcap_devices_.push_back(Device(devices[i], i));
    }
    SignalDevicesChange();
  }
  virtual bool GetVideoCaptureDevice(const std::string& name,
                                     Device* out) {
    if (vidcap_devices_.empty())
      return false;

    // If the name is empty, return the default device.
    if (name.empty() || name == kDefaultDeviceName) {
      *out = vidcap_devices_[0];
      return true;
    }

    return FindDeviceByName(vidcap_devices_, name, out);
  }
  bool GetAudioDevice(bool is_input, const std::string& name,
                      Device* out) {
    // If the name is empty, return the default device.
    if (name.empty() || name == kDefaultDeviceName) {
      *out = Device(name, -1);
      return true;
    }

    return FindDeviceByName((is_input ? input_devices_ : output_devices_),
                            name, out);
  }
  static bool FindDeviceByName(const std::vector<Device>& devices,
                               const std::string& name,
                               Device* out) {
    for (std::vector<Device>::const_iterator it = devices.begin();
         it != devices.end(); ++it) {
      if (name == it->name) {
        *out = *it;
        return true;
      }
    }
    return false;
  }
 private:
  std::vector<Device> input_devices_;
  std::vector<Device> output_devices_;
  std::vector<Device> vidcap_devices_;
};

}  // namespace cricket

#endif  // TALK_SESSION_PHONE_FAKEDEVICEMANAGER_H_