public IAsyncAction SetVideoDeviceAsync(DtoMediaDevice device)
{
_videoDevice = device;
var settings = ApplicationData.Current.LocalSettings;
if (device != null)
{
settings.Values[MediaSettingsIds.VideoDeviceSettings] = device.Id;
ETWEventLogger.Instance.LogEvent("Video Device Selected",
"name = " + device.Name,
DateTimeOffset.Now.ToUnixTimeMilliseconds().ToString());
var selectedVideoDevice = device.FromDto();
int preferredCaptureWidth = (int)settings.Values[MediaSettingsIds.PreferredVideoCaptureWidth];
int preferredCaptureHeight = (int)settings.Values[MediaSettingsIds.PreferredVideoCaptureHeight];
int preferredCaptureFrameRate = (int)settings.Values[MediaSettingsIds.PreferredVideoCaptureFrameRate];
bool isCapabilityValid = false;
if (selectedVideoDevice != null)
{
var getTask = selectedVideoDevice.GetVideoCaptureCapabilities().AsTask();
getTask.Wait();
var capabilities = getTask.Result;
foreach (var capability in capabilities)
{
if (capability.FrameRate == preferredCaptureFrameRate &&
capability.Height == preferredCaptureHeight &&
capability.Width == preferredCaptureWidth)
{
isCapabilityValid = true;
}
}
}
if (!isCapabilityValid)
{
preferredCaptureWidth = 640;
settings.Values[MediaSettingsIds.PreferredVideoCaptureWidth] = preferredCaptureWidth;
preferredCaptureHeight = 480;
settings.Values[MediaSettingsIds.PreferredVideoCaptureHeight] = preferredCaptureHeight;
preferredCaptureFrameRate = 30;
settings.Values[MediaSettingsIds.PreferredVideoCaptureFrameRate] = preferredCaptureFrameRate;
}
WebRTC.SetPreferredVideoCaptureFormat(preferredCaptureWidth, preferredCaptureHeight,
preferredCaptureFrameRate);
}
else
{
settings.Values.Remove(MediaSettingsIds.VideoDeviceSettings);
}
OnVideoDeviceSelectionChanged?.Invoke();
return(Task.CompletedTask.AsAsyncAction());
}
public IAsyncOperation <DtoMediaDevices> GetVideoCaptureDevicesAsync()
{
RtcManager.Instance.EnsureRtcIsInitialized();
var media = RtcManager.Instance.Media;
var settings = ApplicationData.Current.LocalSettings;
var videoCaptureDevices = media.GetVideoCaptureDevices().ToArray().ToDto();
DtoMediaDevice preferredVideoCapture = null;
// Search for previously selected video capture device and mark as preferred if found.
// Otherwise try to select first available device.
if (settings.Values.ContainsKey(MediaSettingsIds.VideoDeviceSettings))
{
var selectedVideoCaptureDevice = Array.Find(
videoCaptureDevices.Devices,
it => it.Id == (string)settings.Values[MediaSettingsIds.VideoDeviceSettings]);
if (selectedVideoCaptureDevice != null)
{
// Previously selected video recording device found, mark as preferred.
selectedVideoCaptureDevice.IsPreferred = true;
preferredVideoCapture = selectedVideoCaptureDevice;
_videoDevice = selectedVideoCaptureDevice;
}
}
if (preferredVideoCapture == null)
{
// Previously selected video recording device is not found anymore,
// probably removed.
if (videoCaptureDevices.Devices.Length > 0)
{
settings.Values[MediaSettingsIds.VideoDeviceSettings] = videoCaptureDevices.Devices[0].Id;
videoCaptureDevices.Devices[0].IsPreferred = true;
_videoDevice = videoCaptureDevices.Devices[0];
OnVideoDeviceSelectionChanged?.Invoke();
}
else
{
ApplicationData.Current.LocalSettings.Values.Remove(MediaSettingsIds.VideoDeviceSettings);
_videoDevice = null;
OnVideoDeviceSelectionChanged?.Invoke();
}
}
return(Task.FromResult(videoCaptureDevices).AsAsyncOperation());
}