We are closing.
DemoHere the player will fit its parent without altering its aspect ratio.
<video class="sublime" data-settings="uid:demo-responsive-fit-resizing; autoresize:fit;" title="Demo: Responsive integration, Fit resizing" poster="http://media.sublimevideo.net/vpa/ms_800.jpg" width="640" height="360" preload="none" style="display:none">
<source src="http://media.sublimevideo.net/vpa/ms_360p.mp4" />
<source src="http://media.sublimevideo.net/vpa/ms_360p.webm" />
</video>