take_snapshot.py

def take_snapshot(self):
        # Import the global variables we'll be using
        global framesTaken, clusters, borderSize, offset
        # This will be needed to check if the player was playing at the
        # time of the button press
        wasPlaying = None
        # We need to get the width and height of the video file
        videoSize = self.mediaplayer.video_get_size()
        # This is the VLC function, that let's us
        # take a snap shot of the video frame and save it in the directory
        self.mediaplayer.video_take_snapshot(
            0, "./img_"+str(framesTaken)+".png",
            videoSize[0],
            videoSize[1])

        # While we do the image processing, let's pause the video
        if self.mediaplayer.is_playing():
            self.PlayPause()
            wasPlaying = True