[TeKo]

Should work like that.

Code:

class MyPlayer(xbmc.Player):
    def _init_ (self):
        xbmc.Player._init_(self)

    def onPlayBackStarted(self):
        if xbmc.Player().isPlayingVideo():
            currentPlayingFile = xbmc.Player().getPlayingFile()
            if re.search(r'3D.OU', currentPlayingFile, re.I):
                xbmc.sleep(500)
                response = xbmc.executebuiltin("Action(3dmodetab)")
                
            if re.search(r'3D.SBS', currentPlayingFile, re.I):
                xbmc.sleep(500)
                response = xbmc.executebuiltin("Action(3dmodesbs)")
                    
    def onPlayBackEnded(self):
        response = xbmc.executebuiltin("Action(3dmodeoff)")

    def onPlayBackStopped(self):
        response = xbmc.executebuiltin("Action(3dmodeoff)")

player=MyPlayer()
while(1):
        xbmc.sleep(500)