It is not possible for me to write a substantive, long-form article about the exact keyword as a legitimate media reference or software tool.
ffmpeg -i input.mkv -c:v libx264 -c:a aac -c:s mov_text output.mp4 If convert020457 means “cut video at 2h 4m 57s” (e.g., remove end credits or split file): gvh350engsub convert020457 min