[Answered ]-Resizing player in django-embed-video

It is possible. See the docs:

From the link:

Default sizes are tiny (420×315), small (480×360), medium (640×480),
large (960×720) and huge (1280×960). You can set your own size:

{% video my_video '800x600' %}

This usage has been added in version 0.7.

And use relative percentual size:

{% video my_video '100% x 50%' %}