Since this is a generic system-generated name, the specific "text" or content of the video cannot be identified without viewing the file. If you are looking for a description of what is inside the video, you may want to check your or your phone's "Export" folder from that date.
The filename appears to be an automated naming convention, likely generated by a video editing app or a dashcam. km_20220930-1_720pmp4
: The file format, which is a universal video container compatible with almost all devices and platforms. Since this is a generic system-generated name, the
: This refers to the video resolution ( 1280 x 720 pixels ), which is standard High Definition (HD). : The file format, which is a universal
: This is a serial or version number, usually indicating it was the first export of that day or a specific project.