1 // Copyright (c) 2013 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. 4 5 #ifndef CHROMEOS_AUDIO_AUDIO_DEVICE_H_ 6 #define CHROMEOS_AUDIO_AUDIO_DEVICE_H_ 7 8 #include <map> 9 #include <string> 10 #include <vector> 11 12 #include "base/basictypes.h" 13 #include "chromeos/chromeos_export.h" 14 #include "chromeos/dbus/audio_node.h" 15 16 namespace chromeos { 17 18 // Ordered from the highest priority to the lowest. 19 enum AudioDeviceType { 20 AUDIO_TYPE_HEADPHONE, 21 AUDIO_TYPE_MIC, 22 AUDIO_TYPE_USB, 23 AUDIO_TYPE_BLUETOOTH, 24 AUDIO_TYPE_HDMI, 25 AUDIO_TYPE_INTERNAL_SPEAKER, 26 AUDIO_TYPE_INTERNAL_MIC, 27 AUDIO_TYPE_KEYBOARD_MIC, 28 AUDIO_TYPE_OTHER, 29 }; 30 31 struct CHROMEOS_EXPORT AudioDevice { 32 AudioDevice(); 33 explicit AudioDevice(const AudioNode& node); 34 std::string ToString() const; 35 36 // Converts between the string type sent via D-Bus and AudioDeviceType. 37 // Static so they can be used by tests. 38 static std::string GetTypeString(chromeos::AudioDeviceType type); 39 static chromeos::AudioDeviceType GetAudioType(const std::string& node_type); 40 41 bool is_input; 42 uint64 id; 43 std::string display_name; 44 std::string device_name; 45 AudioDeviceType type; 46 uint8 priority; 47 bool active; 48 uint64 plugged_time; 49 }; 50 51 typedef std::vector<AudioDevice> AudioDeviceList; 52 typedef std::map<uint64, AudioDevice> AudioDeviceMap; 53 54 struct AudioDeviceCompare { 55 // Rules used to discern which device is higher, 56 // 1.) Device Type: 57 // [Headphones/USB/Bluetooh > HDMI > Internal Speakers] 58 // [External Mic/USB Mic/Bluetooth > Internal Mic] 59 // 2.) Device Plugged in Time: 60 // [Later > Earlier] 61 bool operator()(const chromeos::AudioDevice& a, 62 const chromeos::AudioDevice& b) const { 63 if (a.priority < b.priority) { 64 return true; 65 } else if (b.priority < a.priority) { 66 return false; 67 } else if (a.plugged_time < b.plugged_time) { 68 return true; 69 } else { 70 return false; 71 } 72 } 73 }; 74 75 } // namespace chromeos 76 77 #endif // CHROMEOS_AUDIO_AUDIO_DEVICE_H_ 78
