public async Task RefreshVideoCaptureFormatsAsync(VideoCaptureDeviceInfo item)
{
var formats = new CollectionViewModel <VideoCaptureFormatViewModel>();
if (item != null)
{
IReadOnlyList <VideoCaptureFormat> formatsList;
string profileId = VideoProfiles.SelectedItem?.uniqueId;
if (string.IsNullOrEmpty(profileId))
{
// Device doesn't support video profiles; fall back on flat list of capture formats.
formatsList = await DeviceVideoTrackSource.GetCaptureFormatsAsync(item.Id);
}
else
{
// Enumerate formats for the specified profile only
formatsList = await DeviceVideoTrackSource.GetCaptureFormatsAsync(item.Id, profileId);
}
foreach (var format in formatsList)
{
formats.Add(new VideoCaptureFormatViewModel
{
Format = format,
FormatEncodingDisplayName = FourCCToString(format.fourcc)
});
}
}
VideoCaptureFormats = formats;
// Select first item for convenience
VideoCaptureFormats.SelectFirstItemIfAny();
}
public async void RefreshVideoProfiles(VideoCaptureDeviceInfo item, VideoProfileKind kind)
{
// Clear formats, which are profile-dependent. This ensures the former list doesn't
// stay visible if the current profile kind is not supported (does not return any profile).
VideoCaptureFormats.Clear();
var videoProfiles = new CollectionViewModel <VideoProfile>();
if (item != null)
{
IReadOnlyList <VideoProfile> profiles = await DeviceVideoTrackSource.GetCaptureProfilesAsync(item.Id, kind);
foreach (var profile in profiles)
{
videoProfiles.Add(profile);
}
}
VideoProfiles = videoProfiles;
// Select first item for convenience
VideoProfiles.SelectFirstItemIfAny();
}
public async Task RefreshVideoCaptureFormatsAsync(VideoCaptureDeviceInfo item)
{
var formats = new CollectionViewModel <VideoCaptureFormatViewModel>();
if (item != null)
{
if (MediaCapture.IsVideoProfileSupported(item.Id))
{
foreach (var desc in VideoProfiles.SelectedItem?.SupportedRecordMediaDescription)
{
var formatVM = new VideoCaptureFormatViewModel();
formatVM.Format.width = desc.Width;
formatVM.Format.height = desc.Height;
formatVM.Format.framerate = desc.FrameRate;
//formatVM.Format.fourcc = desc.Subtype; // TODO: string => FOURCC
formatVM.FormatEncodingDisplayName = desc.Subtype;
formats.Add(formatVM);
}
}
else
{
// Device doesn't support video profiles; fall back on flat list of capture formats.
List <VideoCaptureFormat> formatsList = await PeerConnection.GetVideoCaptureFormatsAsync(item.Id);
foreach (var format in formatsList)
{
formats.Add(new VideoCaptureFormatViewModel
{
Format = format,
FormatEncodingDisplayName = FourCCToString(format.fourcc)
});
}
}
}
VideoCaptureFormats = formats;
// Select first item for convenience
VideoCaptureFormats.SelectFirstItemIfAny();
}
