Add pixel-aspect-ratio=1/1 to force the rescaling
-rwxr-xr-x 5891 gst-custom-player.py
-rwxr-xr-x 1146 gst-looping-video-1.py
-rwxr-xr-x 1088 gst-looping-video-2.py
-rwxr-xr-x 2747 gst-trick-mode-looping-1.py
-rwxr-xr-x 3102 gst-trick-mode-looping-2.py
-rwxr-xr-x 2317 gst-trick-mode.py