autocmd event for mp4 files on the cursor

[sazam0]

I have a command which shows the duration of media (mp4) files in the status bar (macro %S). It works ok with executing manually. I want to add it to the autocmd to show the information (duration) when the cursor is on the mp4 files. I only found DirEnter event, I am not sure how to use that, since the files can be in any directory.

here I attach the code: command! statf vstat singlef %d %c %S 2> /dev/null (vstat is the script file name)

singlef(){
	lpath="$1"/"$2"
	duration="mediainfo --Inform=\"General;%Duration/String3%\" ${lpath}"
	tmp=$(eval "$duration")
	echo "duration : " ${tmp} | sed 's/.\{4\}$//'
}

[xaizek]

The use case like this was never considered. The closest thing is to use extcached() function in status line format and filter out non-mp4 files in the script to return an empty line and take no extra space.