The filename follows a standard naming convention used by several mobile video editing and recording apps, most notably CapCut or the TikTok in-app editor.
The "lv" often stands for "Lava," which is the internal project name for CapCut's engine. The numbers represent the timestamp of when the video was exported or saved: . lv_0_20221227214901.mp4
Paper2Video: Automatic Video Generation from Scientific Papers The filename follows a standard naming convention used