If "proper feature" refers to what is happening in the video, the timestamp suggests it may be related to:
Open the video in the Photos app , swipe up, and you will see the resolution, frame rate (fps), and file size. 2. "Feature" as a Software Function Video Dec 21, 10 09 54 AM.mp4
Right-click the file and select Get Info . Look under "More Info" for dimensions, codecs (usually H.264 or HEVC), and duration. If "proper feature" refers to what is happening
In many years, December 21 is the Winter Solstice; the video might feature specific lighting or astronomical events related to the shortest day of the year. and you will see the resolution
If you are asking about a specific software feature that generated this video: