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| 1 // Copyright 2014 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 #include "media/video/capture/mac/video_capture_device_factory_mac.h" | |
| 6 | |
| 7 #import "media/video/capture/mac/avfoundation_glue.h" | |
| 8 #include "media/video/capture/mac/video_capture_device_mac.h" | |
| 9 #import "media/video/capture/mac/video_capture_device_avfoundation_mac.h" | |
| 10 #import "media/video/capture/mac/video_capture_device_qtkit_mac.h" | |
| 11 | |
| 12 namespace media { | |
| 13 | |
| 14 // Some devices are not correctly supported in AVFoundation, f.i. Blackmagic, | |
| 15 // see http://crbug.com/347371. The devices are identified by USB Vendor ID and | |
| 16 // by a characteristic substring of the name, usually the vendor's name. | |
| 17 const struct NameAndVid { | |
| 18 const char* vid; | |
| 19 const char* name; | |
| 20 } kBlacklistedCameras[] = { { "a82c", "Blackmagic" } }; | |
| 21 | |
| 22 // In device identifiers, the USB VID and PID are stored in 4 bytes each. | |
| 23 const size_t kVidPidSize = 4; | |
| 24 | |
| 25 VideoCaptureDeviceFactoryMac::VideoCaptureDeviceFactoryMac() { | |
| 26 thread_checker_.DetachFromThread(); | |
| 27 } | |
| 28 | |
| 29 scoped_ptr<VideoCaptureDevice> VideoCaptureDeviceFactoryMac::Create( | |
| 30 const VideoCaptureDevice::Name& device_name) { | |
| 31 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 32 DCHECK_NE(device_name.capture_api_type(), | |
| 33 VideoCaptureDevice::Name::API_TYPE_UNKNOWN); | |
| 34 | |
| 35 VideoCaptureDevice::Names device_names; | |
| 36 GetDeviceNames(&device_names); | |
| 37 VideoCaptureDevice::Names::iterator it = device_names.begin(); | |
| 38 for (; it != device_names.end(); ++it) { | |
| 39 if (it->id() == device_name.id()) | |
| 40 break; | |
| 41 } | |
| 42 if (it == device_names.end()) | |
| 43 return scoped_ptr<VideoCaptureDevice>(); | |
| 44 | |
| 45 scoped_ptr<VideoCaptureDeviceMac> capture_device( | |
| 46 new VideoCaptureDeviceMac(device_name)); | |
| 47 if (!capture_device->Init(device_name.capture_api_type())) { | |
| 48 LOG(ERROR) << "Could not initialize VideoCaptureDevice."; | |
| 49 capture_device.reset(); | |
| 50 } | |
| 51 return scoped_ptr<VideoCaptureDevice>(capture_device.Pass()); | |
| 52 } | |
| 53 | |
| 54 void VideoCaptureDeviceFactoryMac::GetDeviceNames( | |
| 55 VideoCaptureDevice::Names* const device_names) { | |
| 56 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 57 // Loop through all available devices and add to |device_names|. | |
| 58 NSDictionary* capture_devices; | |
| 59 if (AVFoundationGlue::IsAVFoundationSupported()) { | |
| 60 bool is_any_device_blacklisted = false; | |
| 61 DVLOG(1) << "Enumerating video capture devices using AVFoundation"; | |
| 62 capture_devices = [VideoCaptureDeviceAVFoundation deviceNames]; | |
| 63 std::string device_vid; | |
| 64 // Enumerate all devices found by AVFoundation, translate the info for each | |
| 65 // to class Name and add it to |device_names|. | |
| 66 for (NSString* key in capture_devices) { | |
| 67 VideoCaptureDevice::Name name( | |
| 68 [[capture_devices valueForKey:key] UTF8String], | |
| 69 [key UTF8String], VideoCaptureDevice::Name::AVFOUNDATION); | |
| 70 device_names->push_back(name); | |
| 71 // Extract the device's Vendor ID and compare to all blacklisted ones. | |
| 72 device_vid = name.GetModel().substr(0, kVidPidSize); | |
| 73 for (size_t i = 0; i < arraysize(kBlacklistedCameras); ++i) { | |
| 74 is_any_device_blacklisted |= | |
| 75 !strcasecmp(device_vid.c_str(), kBlacklistedCameras[i].vid); | |
| 76 if (is_any_device_blacklisted) | |
| 77 break; | |
| 78 } | |
| 79 } | |
| 80 // If there is any device blacklisted in the system, walk the QTKit device | |
| 81 // list and add those devices with a blacklisted name to the |device_names|. | |
| 82 // AVFoundation and QTKit device lists partially overlap, so add a "QTKit" | |
| 83 // prefix to the latter ones to distinguish them from the AVFoundation ones. | |
| 84 if (is_any_device_blacklisted) { | |
| 85 capture_devices = [VideoCaptureDeviceQTKit deviceNames]; | |
| 86 for (NSString* key in capture_devices) { | |
| 87 NSString* device_name = [capture_devices valueForKey:key]; | |
| 88 for (size_t i = 0; i < arraysize(kBlacklistedCameras); ++i) { | |
| 89 if ([device_name rangeOfString:@(kBlacklistedCameras[i].name) | |
| 90 options:NSCaseInsensitiveSearch].length != 0) { | |
| 91 DVLOG(1) << "Enumerated blacklisted " << [device_name UTF8String]; | |
| 92 VideoCaptureDevice::Name name( | |
| 93 "QTKit " + std::string([device_name UTF8String]), | |
| 94 [key UTF8String], VideoCaptureDevice::Name::QTKIT); | |
| 95 device_names->push_back(name); | |
| 96 } | |
| 97 } | |
| 98 } | |
| 99 } | |
| 100 } else { | |
| 101 DVLOG(1) << "Enumerating video capture devices using QTKit"; | |
| 102 capture_devices = [VideoCaptureDeviceQTKit deviceNames]; | |
| 103 for (NSString* key in capture_devices) { | |
| 104 VideoCaptureDevice::Name name( | |
| 105 [[capture_devices valueForKey:key] UTF8String], | |
| 106 [key UTF8String], VideoCaptureDevice::Name::QTKIT); | |
| 107 device_names->push_back(name); | |
| 108 } | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 void VideoCaptureDeviceFactoryMac::GetDeviceSupportedFormats( | |
| 113 const VideoCaptureDevice::Name& device, | |
| 114 VideoCaptureFormats* supported_formats) { | |
| 115 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 116 if (device.capture_api_type() == VideoCaptureDevice::Name::AVFOUNDATION) { | |
| 117 DVLOG(1) << "Enumerating video capture capabilities, AVFoundation"; | |
| 118 [VideoCaptureDeviceAVFoundation getDevice:device | |
| 119 supportedFormats:supported_formats]; | |
| 120 } else { | |
| 121 NOTIMPLEMENTED(); | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 } // namespace media | |
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