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1 /* | |
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license | |
5 * that can be found in the LICENSE file in the root of the source | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #if !defined(__has_feature) || !__has_feature(objc_arc) | |
12 #error "This file requires ARC support." | |
13 #endif | |
14 | |
15 #include <AVFoundation/AVFoundation.h> | |
16 | |
17 #include <string> | |
18 | |
19 #include "webrtc/modules/video_capture/ios/device_info_ios.h" | |
20 #include "webrtc/modules/video_capture/ios/device_info_ios_objc.h" | |
21 #include "webrtc/modules/video_capture/video_capture_impl.h" | |
22 #include "webrtc/system_wrappers/include/trace.h" | |
23 | |
24 using namespace webrtc; | |
25 using namespace videocapturemodule; | |
26 | |
27 static NSArray *camera_presets = @[AVCaptureSessionPreset352x288, | |
28 AVCaptureSessionPreset640x480, | |
29 AVCaptureSessionPreset1280x720, | |
30 AVCaptureSessionPreset1920x1080]; | |
31 | |
32 | |
33 #define IOS_UNSUPPORTED() \ | |
34 WEBRTC_TRACE(kTraceError, \ | |
35 kTraceVideoCapture, \ | |
36 _id, \ | |
37 "%s is not supported on the iOS platform.", \ | |
38 __FUNCTION__); \ | |
39 return -1; | |
40 | |
41 VideoCaptureModule::DeviceInfo* VideoCaptureImpl::CreateDeviceInfo( | |
42 const int32_t device_id) { | |
43 return new DeviceInfoIos(device_id); | |
44 } | |
45 | |
46 DeviceInfoIos::DeviceInfoIos(const int32_t device_id) | |
47 : DeviceInfoImpl(device_id) { | |
48 this->Init(); | |
49 } | |
50 | |
51 DeviceInfoIos::~DeviceInfoIos() {} | |
52 | |
53 int32_t DeviceInfoIos::Init() { | |
54 // Fill in all device capabilities. | |
55 | |
56 int deviceCount = [DeviceInfoIosObjC captureDeviceCount]; | |
57 | |
58 for (int i = 0; i < deviceCount; i++) { | |
59 AVCaptureDevice *avDevice = [DeviceInfoIosObjC captureDeviceForIndex:i]; | |
60 VideoCaptureCapabilities capabilityVector; | |
61 | |
62 for (NSString *preset in camera_presets) { | |
63 BOOL support = [avDevice supportsAVCaptureSessionPreset:preset]; | |
64 if (support) { | |
65 VideoCaptureCapability capability = | |
66 [DeviceInfoIosObjC capabilityForPreset:preset]; | |
67 capabilityVector.push_back(capability); | |
68 } | |
69 } | |
70 | |
71 char deviceNameUTF8[256]; | |
72 char deviceId[256]; | |
73 this->GetDeviceName(i, deviceNameUTF8, 256, deviceId, 256); | |
74 std::string deviceIdCopy(deviceId); | |
75 std::pair<std::string, VideoCaptureCapabilities> mapPair = | |
76 std::pair<std::string, VideoCaptureCapabilities> | |
77 (deviceIdCopy, capabilityVector); | |
78 _capabilitiesMap.insert(mapPair); | |
79 } | |
80 | |
81 return 0; | |
82 } | |
83 | |
84 uint32_t DeviceInfoIos::NumberOfDevices() { | |
85 return [DeviceInfoIosObjC captureDeviceCount]; | |
86 } | |
87 | |
88 int32_t DeviceInfoIos::GetDeviceName(uint32_t deviceNumber, | |
89 char* deviceNameUTF8, | |
90 uint32_t deviceNameUTF8Length, | |
91 char* deviceUniqueIdUTF8, | |
92 uint32_t deviceUniqueIdUTF8Length, | |
93 char* productUniqueIdUTF8, | |
94 uint32_t productUniqueIdUTF8Length) { | |
95 NSString* deviceName = [DeviceInfoIosObjC deviceNameForIndex:deviceNumber]; | |
96 | |
97 NSString* deviceUniqueId = | |
98 [DeviceInfoIosObjC deviceUniqueIdForIndex:deviceNumber]; | |
99 | |
100 strncpy(deviceNameUTF8, [deviceName UTF8String], deviceNameUTF8Length); | |
101 deviceNameUTF8[deviceNameUTF8Length - 1] = '\0'; | |
102 | |
103 strncpy(deviceUniqueIdUTF8, | |
104 [deviceUniqueId UTF8String], | |
105 deviceUniqueIdUTF8Length); | |
106 deviceUniqueIdUTF8[deviceUniqueIdUTF8Length - 1] = '\0'; | |
107 | |
108 if (productUniqueIdUTF8) { | |
109 productUniqueIdUTF8[0] = '\0'; | |
110 } | |
111 | |
112 return 0; | |
113 } | |
114 | |
115 int32_t DeviceInfoIos::NumberOfCapabilities(const char* deviceUniqueIdUTF8) { | |
116 int32_t numberOfCapabilities = 0; | |
117 std::string deviceUniqueId(deviceUniqueIdUTF8); | |
118 std::map<std::string, VideoCaptureCapabilities>::iterator it = | |
119 _capabilitiesMap.find(deviceUniqueId); | |
120 | |
121 if (it != _capabilitiesMap.end()) { | |
122 numberOfCapabilities = it->second.size(); | |
123 } | |
124 return numberOfCapabilities; | |
125 } | |
126 | |
127 int32_t DeviceInfoIos::GetCapability(const char* deviceUniqueIdUTF8, | |
128 const uint32_t deviceCapabilityNumber, | |
129 VideoCaptureCapability& capability) { | |
130 std::string deviceUniqueId(deviceUniqueIdUTF8); | |
131 std::map<std::string, VideoCaptureCapabilities>::iterator it = | |
132 _capabilitiesMap.find(deviceUniqueId); | |
133 | |
134 if (it != _capabilitiesMap.end()) { | |
135 VideoCaptureCapabilities deviceCapabilities = it->second; | |
136 | |
137 if (deviceCapabilityNumber < deviceCapabilities.size()) { | |
138 VideoCaptureCapability cap; | |
139 cap = deviceCapabilities[deviceCapabilityNumber]; | |
140 capability = cap; | |
141 return 0; | |
142 } | |
143 } | |
144 | |
145 return -1; | |
146 } | |
147 | |
148 int32_t DeviceInfoIos::DisplayCaptureSettingsDialogBox( | |
149 const char* deviceUniqueIdUTF8, | |
150 const char* dialogTitleUTF8, | |
151 void* parentWindow, | |
152 uint32_t positionX, | |
153 uint32_t positionY) { | |
154 IOS_UNSUPPORTED(); | |
155 } | |
156 | |
157 int32_t DeviceInfoIos::GetOrientation(const char* deviceUniqueIdUTF8, | |
158 VideoRotation& orientation) { | |
159 if (strcmp(deviceUniqueIdUTF8, "Front Camera") == 0) { | |
160 orientation = kVideoRotation_0; | |
161 } else { | |
162 orientation = kVideoRotation_90; | |
163 } | |
164 return orientation; | |
165 } | |
166 | |
167 int32_t DeviceInfoIos::CreateCapabilityMap(const char* deviceUniqueIdUTF8) { | |
168 std::string deviceName(deviceUniqueIdUTF8); | |
169 std::map<std::string, std::vector<VideoCaptureCapability>>::iterator it = | |
170 _capabilitiesMap.find(deviceName); | |
171 VideoCaptureCapabilities deviceCapabilities; | |
172 if (it != _capabilitiesMap.end()) { | |
173 _captureCapabilities = it->second; | |
174 return 0; | |
175 } | |
176 | |
177 return -1; | |
178 } | |
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