This is the file format that "wraps" the video and audio data together so it can be played on most devices. Common Use Cases
You are most likely encountering this file in one of the following scenarios: 264-Mary.mp4
This almost certainly refers to H.264 (also known as AVC), the most common video compression standard in the world. It is used for everything from YouTube videos to Blu-ray discs because it balances high quality with small file sizes. This is the file format that "wraps" the
Разница между MPEG-4, AVC/H.264 и MP4 - Elecard Разница между MPEG-4, AVC/H
In a professional or security setting, this often serves as a label for a specific camera (e.g., "Mary" vs. "Paul"), a project name, or a user who uploaded the clip.
Many CCTV and IP camera systems (like Frigate ) use H.264 compression and auto-generate filenames based on camera names and timestamps.