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

This way you get the duration in seconds. I think this is more convenient.

ffprobe -loglevel error -show_streams inputFile.mp3 | grep duration | cut -f2 -d=

ffprobe comes with ffmpeg so you should have it.

EDIT: For a more dedicated version you could use for example

ffprobe -loglevel error -show_format -show_streams inputFile.extension -print_format json

Instead of JSON you could also use e.g. CSV or XML. For more output options look here http://ffmpeg.org/ffprobe.html#Writers