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
If "proper feature" refers to what is happening in the video, the timestamp suggests it may be related to: Video Dec 21, 10 09 54 AM.mp4
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. Open the video in the Photos app ,
If you are asking about a specific software feature that generated this video: If you are asking about a specific software
Since the filename "Video Dec 21, 10 09 54 AM.mp4" follows the default naming convention for or macOS screen recordings, here is how you can identify its "proper features": 1. Technical Metadata (The File's Features)
Right-click the file and select Get Info . Look under "More Info" for dimensions, codecs (usually H.264 or HEVC), and duration.
If you saved a Live Photo as a video, it often adopts a timestamped name similar to this. 3. Contextual Content