[FFmpeg-user] Problem with a YT video

[Moritz Barsnick]

On Sun, Apr 24, 2016 at 09:33:40 -0600, jd1008 wrote:
> This video plays in 2 virtual screens in the same display screen.
> Is there a way to fix this?

Could you be a bit more verbose on what you're trying to do?

> https://www.youtube.com/watch?v=WEjqYj17jaA&

That's a webpage.

Let me guess (I shouldn't, because it saves you trying to explain to
us):

$ ffplay -f lavfi -i "movie=input.mp4,crop=w=iw/2:h=ih:x=0:y=0,scale=w=2*iw:h=ih,setdar=2*dar"
(IOW, just play the left eye image, upscaled to full size.)

Moritz