In most cases, a filename with this structure is a typically used by:
: Local security DVRs often export files using standardized alphanumeric codes based on the camera channel and timestamp. g4_0167.mp4
The filename does not correspond to a widely known public video, viral clip, or specific media franchise. In most cases, a filename with this structure
What was the or website where you encountered this file? In most cases
Because this name is generic, the "full content" would be specific to the device or person that created it. If you found this file on a specific device or website, providing that would help in identifying its purpose.