public static async Task<List<DeviceInfo>> enumerateCameras()
{
var deviceInfo = await Windows.Devices.Enumeration.DeviceInformation.FindAllAsync(Windows.Devices.Enumeration.DeviceClass.VideoCapture);
List<DeviceInfo> devices = new List<DeviceInfo>();
for (int i = 0; i < deviceInfo.Count; i++)
{
DeviceInfo device = new DeviceInfo();
device.deviceID = deviceInfo[i].Id;
device.deviceInfo = deviceInfo[i];
device.deviceName = deviceInfo[i].Name;
try
{
MediaCaptureInitializationSettings mediaSetting = new MediaCaptureInitializationSettings();
setCaptureSettings(out mediaSetting, device.deviceID);
MediaCapture mCapture = new MediaCapture();
await mCapture.InitializeAsync(mediaSetting);
device.resolutionList = updateResolution(mCapture);
}
catch
{
}
devices.Add(device);
}
return devices;
}
public static async Task<MediaCapture> SetCameraWithSetting(MediaCapture mediaCapture, DeviceInfo device, uint width, uint height, string type, MediaCaptureInitializationSettings captrueInitSettings)
{
setCaptureSettings(out captrueInitSettings, device.deviceID);
mediaCapture = new MediaCapture();
await mediaCapture.InitializeAsync(captrueInitSettings);
int index = -1;
for (int i = 0; i < device.resolutionList.Count; i++)
{
VideoEncodingProperties properties = device.resolutionList[i];
if (properties.Width == width && properties.Height == height)
{
if (type == string.Empty)
{
index = i;
break;
}
else if (string.Compare(properties.Subtype, type) == 0)
{
index = i;
break;
}
}
}
if (index == -1)
return null;
try
{
await mediaCapture.VideoDeviceController.SetMediaStreamPropertiesAsync(MediaStreamType.VideoPreview, device.resolutionList[index]);
}
catch
{
}
return mediaCapture;
}
public static void debugWriteSingle(DeviceInfo device)
{
string outputString = String.Format(@"Device Name: {0}Device Id: {1}", device.deviceName + Environment.NewLine, device.deviceID + Environment.NewLine);
string resString = "";
int count = 0;
foreach (VideoEncodingProperties property in device.resolutionList)
{
resString += string.Format("Index: {0}", count);
resString += Environment.NewLine;
resString += string.Format("Resolution: {0} x {1}", property.Width, property.Height);
resString += Environment.NewLine;
resString += string.Format("Type: {0}", property.Subtype);
resString += Environment.NewLine + Environment.NewLine;
count++;
}
outputString += resString;
Debug.WriteLine(outputString);
}
