I have two monitors rotated to portrait orientation - 1080x1920 - in a side-by-side configuration, with totem-3.14.1-1.fc22.x86_64 on Fedora Rawhide.

Any time I play a video - seemingly any video - totem displays it at the wrong aspect ratio, both windowed and full screen.

I started it up playing a video with a native resolution of 960x540, resized the window until there were no black bars visible, took a screenshot, and measured the transparent area in GIMP; obviously this is a bit prone to error, but it's fairly close. The playback area looks to be ~1151x1077, a ratio of ~1.07 . 960/540 is 1.7 recurring.

xrandr -q output:

[adamw@adam Videos]$ xrandr -q
Screen 0: minimum 320 x 200, current 2160 x 1926, maximum 8192 x 8192
DVI-I-2 connected primary 1080x1920+0+0 left (normal left inverted right x axis y axis) 475mm x 267mm
   1920x1080     60.00*+
   1280x1024     75.02    60.02  
   1152x864      75.00  
   1024x768      75.08    60.00  
   800x600       75.00    60.32  
   640x480       75.00    60.00  
   720x400       70.08  
DVI-I-1 connected 1080x1920+1080+6 left (normal left inverted right x axis y axis) 475mm x 267mm
   1920x1080     60.00*+
   1280x1024     75.02    60.02  
   1152x864      75.00  
   1024x768      75.08    60.00  
   800x600       75.00    60.32  
   640x480       75.00    60.00  
   720x400       70.08