/// <summary>
/// Callback invoked when a transceiver is added to the peer connection, either from
/// applying a remote offer/answer, or from manually adding it. In the latter case, the
/// transceiver has already a view model in the pending collection. In the former case,
/// create a view model for it and add it to the negotiated collection.
/// </summary>
/// <param name="transceiver">The newly added transceiver.</param>
private void OnTransceiverAdded(Transceiver transceiver)
{
Logger.Log($"Added transceiver '{transceiver.Name}' (mid=#{transceiver.MlineIndex}).");
ThreadHelper.RunOnMainThread(() =>
{
var trvm = new TransceiverViewModel(transceiver);
Transceivers.Add(trvm);
});
}
/// <summary>
/// Callback on remote videa track added.
///
/// For simplicity this grabs the first remote video track found and uses it to render its
/// content on the right pane of the Tracks window.
/// </summary>
/// <param name="track">The video track added.</param>
/// <seealso cref="RemoteVideoTrack_I420AFrameReady"/>
private void OnRemoteVideoTrackAdded(RemoteVideoTrack track)
{
Logger.Log($"Added remote video track {track.Name} of transceiver {track.Transceiver.Name}.");
ThreadHelper.RunOnMainThread(() =>
{
var trvm = Transceivers.SingleOrDefault(tr => tr.Transceiver == track.Transceiver);
Debug.Assert(trvm.Transceiver.RemoteVideoTrack == track);
trvm.NotifyReceiverChanged(); // this is thread-aware
// This raises property changed events in current thread, needs to be main one
VideoTracks.Add(new VideoTrackViewModel(track));
});
}
private void LocalVideoTrackCollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
Transceivers.RefreshSenderList(MediaKind.Video, force: true);
}