Generally, no. .ajb files are video data, not executable scripts (.exe, .scr). However, scammers often disguise malware as video_player_ajb.exe or ajb_to_mp4_converter.exe .
Therefore, for a filmmaker, "AJB MP4" could easily be shorthand for "the MP4 video file I am submitting to the Al Jazeera Balkans (AJB) film festival." This is a completely legitimate and logical pairing of the two terms. ajb mp4
ffprobe -v error -show_entries stream=codec_name,profile,level,pix_fmt -of default=noprint_wrappers=1 output.mp4 Generally, no