private void applyButton_Click(object sender, EventArgs e)
{
EncoderSettings.Profile = (H264Profile)this.encProfileComboBox.SelectedItem;
EncoderSettings.BitrateMode = (BitrateControlMode)this.bitrateModeComboBox.SelectedItem;
EncoderSettings.MaxBitrate = (int)this.MaxBitrateNumeric.Value;
EncoderSettings.Bitrate = (int)this.bitrateNumeric.Value;
EncoderSettings.FrameRate = new MediaRatio((int)this.fpsNumeric.Value, 1);
EncoderSettings.LowLatency = this.latencyModeCheckBox.Checked;
EncoderSettings.Quality = (int)qualityNumeric.Value;
EncoderSettings.GOPSize = (int)this.gopSizeNumeric.Value;
MediaRatio aspectRatio = null;
var item = aspectRatioComboBox.SelectedItem;
if (item != null)
{
aspectRatio = item as MediaRatio;
}
EncoderSettings.AspectRatio = aspectRatio ?? AspectRatio.AspectRatio_1_1;
this.Close();
}
static string ToFormattedString(this MediaRatio mediaRatio, string key)
{
string retVal = string.Empty;
if (!String.IsNullOrEmpty(key) && mediaRatio != null)
{
retVal = key + ":\t" + mediaRatio.Numerator + "/" + mediaRatio.Denominator;
}
return(retVal);
}
public static DtoMediaRatio ToDto(this MediaRatio obj)
{
if (obj == null)
{
return(null);
}
return(new DtoMediaRatio
{
Numerator = obj.Numerator,
Denominator = obj.Denominator
});
}
private async Task InitializeCameraAsync()
{
if (_mediaCapture == null)
{
_mediaCapture = new MediaCapture();
}
if (_allVideoDevices == null)
{
return;
}
if (_allVideoDevices.Count == 0)
{
Debug.WriteLine("ERROR: no webcam found or available");
return;
}
Object storedVideoDeviceId = _localSettings.Values["CurrentVideoDeviceId"];
if (storedVideoDeviceId == null)
{
storedVideoDeviceId = _allVideoDevices[0].Id;
_localSettings.Values["CurrentVideoDeviceId"] = storedVideoDeviceId;
CameraComboBox.SelectedIndex = 0;
Debug.WriteLine("INFO: no webcam configured. Choosing the first available: " + _allVideoDevices[0].Name);
}
else
{
Debug.WriteLine("Loaded from Settings - CurrentVideoDeviceId: " + storedVideoDeviceId.ToString());
}
var mediaFrameSourceGroup = await MediaFrameSourceGroup.FromIdAsync(storedVideoDeviceId.ToString());
MediaFrameSourceInfo selectedMediaFrameSourceInfo = null;
foreach (MediaFrameSourceInfo sourceInfo in mediaFrameSourceGroup.SourceInfos)
{
if (sourceInfo.MediaStreamType == MediaStreamType.VideoRecord)
{
selectedMediaFrameSourceInfo = sourceInfo;
break;
}
}
if (selectedMediaFrameSourceInfo == null)
{
Debug.WriteLine("no compatible MediaSource found.");
return;
}
MediaCaptureInitializationSettings mediaSettings = new MediaCaptureInitializationSettings();
mediaSettings.VideoDeviceId = storedVideoDeviceId.ToString();
mediaSettings.SourceGroup = mediaFrameSourceGroup;
mediaSettings.StreamingCaptureMode = StreamingCaptureMode.Video;
mediaSettings.SharingMode = MediaCaptureSharingMode.ExclusiveControl;
mediaSettings.MemoryPreference = MediaCaptureMemoryPreference.Cpu;
try
{
await _mediaCapture.InitializeAsync(mediaSettings);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("MediaCapture initialization failed: " + ex.Message);
return;
}
Debug.WriteLine("MediaFrameCapture initialized");
var mediaFrameSource = _mediaCapture.FrameSources[selectedMediaFrameSourceInfo.Id];
imageElement.Source = new SoftwareBitmapSource();
MediaRatio mediaRatio = mediaFrameSource.CurrentFormat.VideoFormat.MediaFrameFormat.FrameRate;
_sourceFrameRate = (double)mediaRatio.Numerator / (double)mediaRatio.Denominator;
CalculateFrameRate();
_mediaFrameReader = await _mediaCapture.CreateFrameReaderAsync(mediaFrameSource, MediaEncodingSubtypes.Argb32);
_mediaFrameReader.AcquisitionMode = MediaFrameReaderAcquisitionMode.Realtime;
_mediaFrameReader.FrameArrived += ColorFrameReader_FrameArrivedAsync;
await _mediaFrameReader.StartAsync();
Debug.WriteLine("MediaFrameReader StartAsync done ");
_isInitialized = true;
UpdateCaptureControls();
}
private uint GetHertz(MediaRatio ratio)
{
return(ratio.Numerator / ratio.Denominator);
}
private double GetFrameRate(MediaRatio frameRate)
{
return(frameRate.Numerator / frameRate.Denominator);
}
