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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
miu
2017/04/03 21:31:24
ditto: video_capture_system_impl.cc?
chfremer
2017/04/04 21:59:32
Done.
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2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "media/capture/video/video_capture_system.h" | 5 #include "media/capture/video/video_capture_system.h" |
6 | 6 |
7 #include "media/base/bind_to_current_loop.h" | 7 #include "media/base/bind_to_current_loop.h" |
8 | 8 |
9 namespace { | 9 namespace { |
10 | 10 |
11 // Compares two VideoCaptureFormat by checking smallest frame_size area, then | 11 // Compares two VideoCaptureFormat by checking smallest frame_size area, then |
(...skipping 38 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
50 for (auto& format : *formats) { | 50 for (auto& format : *formats) { |
51 if (format.pixel_format != media::PIXEL_FORMAT_Y16) | 51 if (format.pixel_format != media::PIXEL_FORMAT_Y16) |
52 format.pixel_format = media::PIXEL_FORMAT_I420; | 52 format.pixel_format = media::PIXEL_FORMAT_I420; |
53 } | 53 } |
54 } | 54 } |
55 | 55 |
56 } // anonymous namespace | 56 } // anonymous namespace |
57 | 57 |
58 namespace media { | 58 namespace media { |
59 | 59 |
60 VideoCaptureSystem::VideoCaptureSystem( | 60 VideoCaptureSystemImpl::VideoCaptureSystemImpl( |
61 std::unique_ptr<VideoCaptureDeviceFactory> factory) | 61 std::unique_ptr<VideoCaptureDeviceFactory> factory) |
62 : factory_(std::move(factory)) {} | 62 : factory_(std::move(factory)) {} |
63 | 63 |
64 VideoCaptureSystem::~VideoCaptureSystem() = default; | 64 VideoCaptureSystemImpl::~VideoCaptureSystemImpl() = default; |
65 | 65 |
66 void VideoCaptureSystem::GetDeviceInfosAsync( | 66 void VideoCaptureSystemImpl::GetDeviceInfosAsync( |
67 const DeviceInfoCallback& result_callback) { | 67 const DeviceInfoCallback& result_callback) { |
68 factory_->EnumerateDeviceDescriptors(media::BindToCurrentLoop( | 68 factory_->EnumerateDeviceDescriptors(media::BindToCurrentLoop( |
69 base::Bind(&VideoCaptureSystem::OnDescriptorsReceived, | 69 base::Bind(&VideoCaptureSystemImpl::OnDescriptorsReceived, |
70 base::Unretained(this), result_callback))); | 70 base::Unretained(this), result_callback))); |
71 } | 71 } |
72 | 72 |
73 // Creates a VideoCaptureDevice object. Returns NULL if something goes wrong. | 73 // Creates a VideoCaptureDevice object. Returns NULL if something goes wrong. |
74 std::unique_ptr<VideoCaptureDevice> VideoCaptureSystem::CreateDevice( | 74 std::unique_ptr<VideoCaptureDevice> VideoCaptureSystemImpl::CreateDevice( |
75 const std::string& device_id) { | 75 const std::string& device_id) { |
76 const VideoCaptureDeviceInfo* device_info = LookupDeviceInfoFromId(device_id); | 76 const VideoCaptureDeviceInfo* device_info = LookupDeviceInfoFromId(device_id); |
77 if (!device_info) | 77 if (!device_info) |
78 return nullptr; | 78 return nullptr; |
79 return factory_->CreateDevice(device_info->descriptor); | 79 return factory_->CreateDevice(device_info->descriptor); |
80 } | 80 } |
81 | 81 |
82 void VideoCaptureSystem::OnDescriptorsReceived( | 82 void VideoCaptureSystemImpl::OnDescriptorsReceived( |
83 const DeviceInfoCallback& result_callback, | 83 const DeviceInfoCallback& result_callback, |
84 std::unique_ptr<VideoCaptureDeviceDescriptors> descriptors) { | 84 std::unique_ptr<VideoCaptureDeviceDescriptors> descriptors) { |
85 // For devices for which we already have an entry in |devices_info_cache_|, | 85 // For devices for which we already have an entry in |devices_info_cache_|, |
86 // we do not want to query the |factory_| for supported formats again. We | 86 // we do not want to query the |factory_| for supported formats again. We |
87 // simply copy them from |devices_info_cache_|. | 87 // simply copy them from |devices_info_cache_|. |
88 std::vector<VideoCaptureDeviceInfo> new_devices_info_cache; | 88 std::vector<VideoCaptureDeviceInfo> new_devices_info_cache; |
89 new_devices_info_cache.reserve(descriptors->size()); | 89 new_devices_info_cache.reserve(descriptors->size()); |
90 for (const auto& descriptor : *descriptors) { | 90 for (const auto& descriptor : *descriptors) { |
91 if (auto* cached_info = LookupDeviceInfoFromId(descriptor.device_id)) { | 91 if (auto* cached_info = LookupDeviceInfoFromId(descriptor.device_id)) { |
92 new_devices_info_cache.push_back(*cached_info); | 92 new_devices_info_cache.push_back(*cached_info); |
93 } else { | 93 } else { |
94 // Query for supported formats in order to create the entry. | 94 // Query for supported formats in order to create the entry. |
95 VideoCaptureDeviceInfo device_info(descriptor); | 95 VideoCaptureDeviceInfo device_info(descriptor); |
96 factory_->GetSupportedFormats(descriptor, &device_info.supported_formats); | 96 factory_->GetSupportedFormats(descriptor, &device_info.supported_formats); |
97 ConsolidateCaptureFormats(&device_info.supported_formats); | 97 ConsolidateCaptureFormats(&device_info.supported_formats); |
98 new_devices_info_cache.push_back(device_info); | 98 new_devices_info_cache.push_back(device_info); |
99 } | 99 } |
100 } | 100 } |
101 | 101 |
102 devices_info_cache_.swap(new_devices_info_cache); | 102 devices_info_cache_.swap(new_devices_info_cache); |
103 result_callback.Run(devices_info_cache_); | 103 result_callback.Run(devices_info_cache_); |
104 } | 104 } |
105 | 105 |
106 const VideoCaptureDeviceInfo* VideoCaptureSystem::LookupDeviceInfoFromId( | 106 const VideoCaptureDeviceInfo* VideoCaptureSystemImpl::LookupDeviceInfoFromId( |
107 const std::string& device_id) { | 107 const std::string& device_id) { |
108 auto iter = std::find_if( | 108 auto iter = std::find_if( |
109 devices_info_cache_.begin(), devices_info_cache_.end(), | 109 devices_info_cache_.begin(), devices_info_cache_.end(), |
110 [&device_id](const media::VideoCaptureDeviceInfo& device_info) { | 110 [&device_id](const media::VideoCaptureDeviceInfo& device_info) { |
111 return device_info.descriptor.device_id == device_id; | 111 return device_info.descriptor.device_id == device_id; |
112 }); | 112 }); |
113 if (iter == devices_info_cache_.end()) | 113 if (iter == devices_info_cache_.end()) |
114 return nullptr; | 114 return nullptr; |
115 return &(*iter); | 115 return &(*iter); |
116 } | 116 } |
117 | 117 |
118 } // namespace media | 118 } // namespace media |
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