public void Play(string fileName)
{
string fileExtension = fileName.Substring(fileName.LastIndexOf('.'));
if (fileExtension.Equals("vlc"))
{
advancedMediaPlayer = new VLCPlayer();
advancedMediaPlayer.PlayVls(fileName);
}
else if (fileExtension.Equals("mp4"))
{
advancedMediaPlayer = new MP4Player();
advancedMediaPlayer.PlayMP4(fileName);
}
}
