Miracast playback: 4:3 not placed in the middle of 16:9 screen
I used VLC on an Android tablet to stream the Video to the FireTV via screen sharing/miracast.
The video I watched was in 4:3 while the TV has 16:9. Instead of being in the center, the video was shown on the left side of the TV with a big black gap on the right side. With Kodi it was in the center, so I guess that this needs to be solved within VLC. The good thing was that VLC recognized that screen sharing was active and did not display the video on the tablet at the same time.