mp4info(3): Return textual summary of mp4 file - Linux man page
Broadly speaking, a "g074.mp4" file is a digital video container that likely follows the standard. While specific "g074.mp4" content can vary depending on its source—such as a personal recording, a forensic sample, or a technical asset—it generally functions as a high-quality, compressed file for video and audio playback. Guide to Managing .mp4 Files g074.mp4