Playing Video from a parallel thread

@strangerobot wrote:

I am writing a program where a thread passes over a flag and a path through a global variable

Part of the thread class

void play()
	{
		globalpath = path;
		cout <<"playing_"<<globalpath<<endl;
		playcheck = true;
		while(playcheck==true)
		{ } //freezes the thread while video is playing

	}

Part of ofApp.cpp

void ofApp::draw(){
	if (playcheck == true )
	{
		playvideo(globalpath);
		playcheck == false;
	};
}

void ofApp::playvideo(string path)
{

	player.load(path + ".mp4");
	player.play();
	while (player.getCurrentFrame() < player.getTotalNumFrames())
	{
		player.nextFrame();
		player.draw(0,0);
	}
}

When I execute the code, the display window is painfully slow and takes a lot of time to load the first frame, and then the window freezes ( crippling speed )

Is there a better way to execute the same?
I want to execute a video playback from the thread and wait till the playback is over

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