/// <summary>
/// Accesses the local video track, specified by
/// this.selectedDevice and this.selectedProfile.
/// MUST NOT BE CALLED FROM THE UI THREAD.
/// </summary>
/// <param name="factory"></param>
/// <returns></returns>
private IMediaStreamTrack getLocalVideo(IWebRtcFactory factory)
{
IReadOnlyList <IConstraint> mandatoryConstraints = new List <IConstraint>()
{
new Constraint("maxWidth", this.selectedProfile.Width.ToString()),
new Constraint("minWidth", this.selectedProfile.Width.ToString()),
new Constraint("maxHeight", this.selectedProfile.Height.ToString()),
new Constraint("minHeight", this.selectedProfile.Height.ToString()),
new Constraint("maxFrameRate", this.selectedProfile.FrameRate.ToString()),
new Constraint("minFrameRate", this.selectedProfile.FrameRate.ToString())
};
IReadOnlyList <IConstraint> optionalConstraints = new List <IConstraint>();
var mediaConstraints = new MediaConstraints(mandatoryConstraints, optionalConstraints);
// this will throw a very unhelpful exception if called from the UI thread
var videoCapturer = VideoCapturer.Create(this.selectedDevice.Name, this.selectedDevice.Id, false);
var options = new VideoOptions()
{
Factory = factory,
Capturer = videoCapturer,
Constraints = mediaConstraints
};
var videoTrackSource = VideoTrackSource.Create(options);
return(MediaStreamTrack.CreateVideoTrack("LocalVideo", videoTrackSource));
}
void SetupVideoTrack()
{
Logger.Debug("PeerChannel", "SetupVideoTrack");
var capability = mediaOption.VideoCaptureCapability;
Logger.Debug("PeerChannel", "create video capturer");
var capturerParams = capability.CreationParameters(factory);
var capturer = VideoCapturer.Create(capturerParams);
if (capturer == null)
{
Logger.Debug("PeerChannel",
"failed to create video capturer");
return;
}
Logger.Debug("PeerChannel", "create video track");
var track = MediaStreamTrack.CreateVideoTrack(factory,
mediaOption.VideoTrackId, capturer);
(capturer as IDisposable).Dispose();
Logger.Debug("PeerChannel", "add video track");
Conn.AddTrack(track);
Logger.Debug("PeerChannel", "add track");
OnAddLocalVideoTrack?.Invoke(capturer, track);
}
private void GetUserMedia()
{
Debug.WriteLine("Getting user media.");
MediaDevice _selectedVideoDevice = (MediaDevice)Devices.Instance.VideoMediaDevicesList[0];
for (int i = 0; i < Devices.Instance.VideoMediaDevicesList.Count; i++)
{
if (Devices.Instance.VideoMediaDevicesList[i].DisplayName == (string)_localSettings.Values["SelectedCameraName"])
{
_selectedVideoDevice = (MediaDevice)Devices.Instance.VideoMediaDevicesList[i];
}
}
List <int> widths = new List <int>();
List <int> heights = new List <int>();
List <int> frameRates = new List <int>();
foreach (var videoFormat in _selectedVideoDevice.VideoFormats)
{
widths.Add(videoFormat.Dimension.Width);
heights.Add(videoFormat.Dimension.Height);
foreach (var frameRate in videoFormat.FrameRates)
{
frameRates.Add(frameRate);
}
}
// Maximum and minimum values for the selected camera
IReadOnlyList <IConstraint> mandatoryConstraints = new List <IConstraint>()
{
new Constraint("maxWidth", widths.Max().ToString()),
new Constraint("minWidth", widths.Min().ToString()),
new Constraint("maxHeight", heights.Max().ToString()),
new Constraint("minHeight", heights.Min().ToString()),
new Constraint("maxFrameRate", frameRates.Max().ToString()),
new Constraint("minFrameRate", frameRates.Min().ToString())
};
// Add optional constrains
IReadOnlyList <IConstraint> optionalConstraints = new List <IConstraint>();
IMediaConstraints mediaConstraints = new MediaConstraints(mandatoryConstraints, optionalConstraints);
var videoCapturer = VideoCapturer.Create(_selectedVideoDevice.DisplayName, _selectedVideoDevice.Id, false);
var videoOptions = new VideoOptions();
videoOptions.Factory = _factory;
videoOptions.Capturer = videoCapturer;
videoOptions.Constraints = mediaConstraints;
var videoTrackSource = VideoTrackSource.Create(videoOptions);
_selfVideoTrack = MediaStreamTrack.CreateVideoTrack("SELF_VIDEO", videoTrackSource);
var audioOptions = new AudioOptions();
audioOptions.Factory = _factory;
var audioTrackSource = AudioTrackSource.Create(audioOptions);
_selfAudioTrack = MediaStreamTrack.CreateAudioTrack("SELF_AUDIO", audioTrackSource);
}