Get length of a video using regex and ffmpeg

Question

From the following ffmpeg -i output, how would I get the length (00:35)--

$ ffmpeg -i 1video.mp4

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from \'/Users/d         


        

Answer 1

You can use the shell

$ ff=$(ffmpeg -i video.mp4 2>&1)
$ d="${ff#*Duration: }"
$ echo "${d%%,*}"