1.添加uvc视频流，

Peripheral/CMakeLists.txt

@@ -8,4 +8,8 @@ target_include_directories(Peripheral
 
 target_link_libraries(Peripheral
     PUBLIC Universal
+    PRIVATE Mfreadwrite
+    PRIVATE Mf
+    PRIVATE mfplat
+    PRIVATE mfuuid
 )

Peripheral/DeviceDiscovery.cpp

@@ -116,6 +116,38 @@ void DeviceDiscovery::enterOtaMode(const std::shared_ptr<Device> &device, std::e
                                         &llTimeStamp, &pSample);
 }
 
+std::vector<std::string> DeviceDiscovery::devices() {
+    std::vector<std::string> ret;
+    IMFAttributes *attributes = nullptr;
+    boost::scope::scope_exit guard([&attributes] { SafeRelease(&attributes); });
+    auto result = MFCreateAttributes(&attributes, 1);
+    if (FAILED(result)) {
+        return ret;
+    }
+
+    result = attributes->SetGUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE, MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID);
+    if (FAILED(result)) {
+        return ret;
+    }
+
+    UINT32 count;
+    IMFActivate **devices = nullptr;
+    result = MFEnumDeviceSources(attributes, &devices, &count);
+    if (FAILED(result)) {
+        return ret;
+    }
+
+    if (count == 0) {
+        return ret;
+    }
+
+    for (int i = 0; i < count; i++) {
+        auto name = this->deviceName(devices[i]);
+        ret.push_back(name);
+    }
+    return ret;
+}
+
 DeviceDiscovery::Resolutions DeviceDiscovery::deviceResolutions(const std::shared_ptr<Device> &source) {
     DeviceDiscovery::Resolutions ret;
     HRESULT result = S_OK;

Peripheral/DeviceDiscovery.h

@@ -24,6 +24,7 @@ public:
     DeviceDiscovery();
     std::shared_ptr<Device> find(const std::string &deviceName, std::error_code &error);
     void enterOtaMode(const std::shared_ptr<Device> &device, std::error_code &error);
+    std::vector<std::string> devices();
 
 protected:
     std::string deviceName(IMFActivate *device);