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1 /* | |
2 * libjingle | |
3 * Copyright 2004 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 #include "talk/media/devices/macdevicemanager.h" | |
29 | |
30 #include <CoreAudio/CoreAudio.h> | |
31 #include <QuickTime/QuickTime.h> | |
32 | |
33 #include "talk/media/base/mediacommon.h" | |
34 #include "webrtc/base/logging.h" | |
35 #include "webrtc/base/stringutils.h" | |
36 #include "webrtc/base/thread.h" | |
37 | |
38 class DeviceWatcherImpl; | |
39 | |
40 namespace cricket { | |
41 | |
42 DeviceManagerInterface* DeviceManagerFactory::Create() { | |
43 return new MacDeviceManager(); | |
44 } | |
45 | |
46 class MacDeviceWatcher : public DeviceWatcher { | |
47 public: | |
48 explicit MacDeviceWatcher(DeviceManagerInterface* dm); | |
49 virtual ~MacDeviceWatcher(); | |
50 virtual bool Start(); | |
51 virtual void Stop(); | |
52 | |
53 private: | |
54 DeviceManagerInterface* manager_; | |
55 DeviceWatcherImpl* impl_; | |
56 }; | |
57 | |
58 static const char* kFilteredAudioDevicesName[] = { | |
59 NULL, | |
60 }; | |
61 // TODO(tommyw): Try to get hold of a copy of Final Cut to understand why we | |
62 // crash while scanning their components on OS X. | |
63 static const char* const kFilteredVideoDevicesName[] = { | |
64 "DVCPRO HD", // Final cut | |
65 "Sonix SN9C201p", // Crashes in OpenAComponent and CloseComponent | |
66 NULL, | |
67 }; | |
68 static const UInt32 kAudioDeviceNameLength = 64; | |
69 // Obj-C functions defined in macdevicemanagermm.mm | |
70 // TODO(ronghuawu): have a shared header for these function defines. | |
71 extern DeviceWatcherImpl* CreateDeviceWatcherCallback( | |
72 DeviceManagerInterface* dm); | |
73 extern void ReleaseDeviceWatcherCallback(DeviceWatcherImpl* impl); | |
74 extern bool GetAVFoundationVideoDevices(std::vector<Device>* out); | |
75 static bool GetAudioDeviceIDs(bool inputs, std::vector<AudioDeviceID>* out); | |
76 static bool GetAudioDeviceName(AudioDeviceID id, bool input, std::string* out); | |
77 | |
78 MacDeviceManager::MacDeviceManager() { | |
79 set_watcher(new MacDeviceWatcher(this)); | |
80 } | |
81 | |
82 MacDeviceManager::~MacDeviceManager() { | |
83 } | |
84 | |
85 bool MacDeviceManager::GetVideoCaptureDevices(std::vector<Device>* devices) { | |
86 devices->clear(); | |
87 if (!GetAVFoundationVideoDevices(devices)) { | |
88 return false; | |
89 } | |
90 return FilterDevices(devices, kFilteredVideoDevicesName); | |
91 } | |
92 | |
93 bool MacDeviceManager::GetAudioDevices(bool input, | |
94 std::vector<Device>* devs) { | |
95 devs->clear(); | |
96 std::vector<AudioDeviceID> dev_ids; | |
97 bool ret = GetAudioDeviceIDs(input, &dev_ids); | |
98 if (!ret) { | |
99 return false; | |
100 } | |
101 for (size_t i = 0; i < dev_ids.size(); ++i) { | |
102 std::string name; | |
103 if (GetAudioDeviceName(dev_ids[i], input, &name)) { | |
104 devs->push_back(Device(name, dev_ids[i])); | |
105 } | |
106 } | |
107 return FilterDevices(devs, kFilteredAudioDevicesName); | |
108 } | |
109 | |
110 static bool GetAudioDeviceIDs(bool input, | |
111 std::vector<AudioDeviceID>* out_dev_ids) { | |
112 UInt32 propsize; | |
113 OSErr err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, | |
114 &propsize, NULL); | |
115 if (0 != err) { | |
116 LOG(LS_ERROR) << "Couldn't get information about property, " | |
117 << "so no device list acquired."; | |
118 return false; | |
119 } | |
120 | |
121 size_t num_devices = propsize / sizeof(AudioDeviceID); | |
122 rtc::scoped_ptr<AudioDeviceID[]> device_ids( | |
123 new AudioDeviceID[num_devices]); | |
124 | |
125 err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices, | |
126 &propsize, device_ids.get()); | |
127 if (0 != err) { | |
128 LOG(LS_ERROR) << "Failed to get device ids, " | |
129 << "so no device listing acquired."; | |
130 return false; | |
131 } | |
132 | |
133 for (size_t i = 0; i < num_devices; ++i) { | |
134 AudioDeviceID an_id = device_ids[i]; | |
135 // find out the number of channels for this direction | |
136 // (input/output) on this device - | |
137 // we'll ignore anything with no channels. | |
138 err = AudioDeviceGetPropertyInfo(an_id, 0, input, | |
139 kAudioDevicePropertyStreams, | |
140 &propsize, NULL); | |
141 if (0 == err) { | |
142 unsigned num_channels = propsize / sizeof(AudioStreamID); | |
143 if (0 < num_channels) { | |
144 out_dev_ids->push_back(an_id); | |
145 } | |
146 } else { | |
147 LOG(LS_ERROR) << "No property info for stream property for device id " | |
148 << an_id << "(is_input == " << input | |
149 << "), so not including it in the list."; | |
150 } | |
151 } | |
152 | |
153 return true; | |
154 } | |
155 | |
156 static bool GetAudioDeviceName(AudioDeviceID id, | |
157 bool input, | |
158 std::string* out_name) { | |
159 UInt32 nameLength = kAudioDeviceNameLength; | |
160 char name[kAudioDeviceNameLength + 1]; | |
161 OSErr err = AudioDeviceGetProperty(id, 0, input, | |
162 kAudioDevicePropertyDeviceName, | |
163 &nameLength, name); | |
164 if (0 != err) { | |
165 LOG(LS_ERROR) << "No name acquired for device id " << id; | |
166 return false; | |
167 } | |
168 | |
169 *out_name = name; | |
170 return true; | |
171 } | |
172 | |
173 MacDeviceWatcher::MacDeviceWatcher(DeviceManagerInterface* manager) | |
174 : DeviceWatcher(manager), | |
175 manager_(manager), | |
176 impl_(NULL) { | |
177 } | |
178 | |
179 MacDeviceWatcher::~MacDeviceWatcher() { | |
180 } | |
181 | |
182 bool MacDeviceWatcher::Start() { | |
183 if (!impl_) { | |
184 impl_ = CreateDeviceWatcherCallback(manager_); | |
185 } | |
186 return impl_ != NULL; | |
187 } | |
188 | |
189 void MacDeviceWatcher::Stop() { | |
190 if (impl_) { | |
191 ReleaseDeviceWatcherCallback(impl_); | |
192 impl_ = NULL; | |
193 } | |
194 } | |
195 | |
196 }; // namespace cricket | |
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