private async Task <PPError> CloseAsyncCore(MessageLoop messageLoop = null) { var tcs = new TaskCompletionSource <PPError>(); EventHandler <PPError> handler = (s, e) => { tcs.TrySetResult(e); }; try { HandleClose += handler; if (MessageLoop == null && messageLoop == null) { Close(); } else { Action <PPError> action = new Action <PPError>((e) => { PPBMediaStreamVideoTrack.Close(this); tcs.TrySetResult(PPError.Ok); } ); InvokeHelper(action, messageLoop); } return(await tcs.Task); } catch (Exception exc) { Console.WriteLine(exc.Message); tcs.SetException(exc); return(PPError.Aborted); } finally { HandleClose -= handler; } }
/// <summary> /// Closes the MediaStream video track, and disconnects it from video source. /// After calling <code>Close()</code>, no new frames will be received. /// </summary> public void Close() { PPBMediaStreamVideoTrack.Close(this); OnClose(PPError.Ok); }