To reproduce: 1. Obtain a video of dimensions 1920x1080 2. Use Impress on a monitor with resolution 1920x1080 3. Create a new presentation 4. Run the "Insert Audio or Video" UNO command (it's not on the menus; but see bug 166285 about putting it in Insert > Media) 5. Choose your video file. Expected result: Video object rectangle fits the entire slide, or an area smaller than the entire slide (e.g. size of content area, or the maximum integer multiple scale-down factor which fits the slide, or the maximum power-of-two scale-down factor which fits the slide). Actual result: Video object rectangle far exceeds slide dimensions (e.g. about 1.8x width).
Sounds reasonable although auto-scaling would obfuscate the original size.
(In reply to Heiko Tietze from comment #1) > Sounds reasonable although auto-scaling would obfuscate the original size. Why would the original size be meaningful on a slide? You can't see anything in its original size in a slideshow. And - we scale images to slide dimensions as the bounding rectangle, when inserting them - so how can it be different for videos?