wpf_player.AudioPlayerModel.play C# (CSharp) Method

        private void play(object args=null)
        {
            if (rsc == null) return;
            if (player.PlaybackState == PlaybackState.Playing) return;
            //NotifyPropertyChanged("Position");
            //localstream = new FileStream(@"C:\prog\p2p-player\Examples\Resource\Garden.mp3",FileMode.Open);
            //if (localstream == null) return;
            //long lastpos = (lmem!=null?lmem.Position:startPosition);
            long lastpos = (lmem != null ? Position : startPosition);
            lmem = new MemoryStream(streambuff);
            resetWaveStream();
            if (player.PlaybackState != PlaybackState.Paused)
            {
                //rsc = new KademliaResource(@"C:\prog\p2p-player\Examples\Resource\Garden.mp3");
                //NotifyPropertyChanged("ResourceTag");
                Position = startPosition;
            }
            else
            {
                Position = lastpos;
            }
            player.Init(wc);
            player.Play();
            NotifyPropertyChanged("PlayingState");
        }