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I need to ftp upload all the mp4 files in a directory with length > 4 minutes using the shell. I can't find any script to check how long a video is. Does anybody have any idea how to do that?

Thank you very much!

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see this stackoverflow.com/questions/3844430/… :-) hope this helps –  harish.venkat Dec 1 '12 at 13:50

2 Answers 2

This will give you the length of a video.

ffmpeg -i myvideo 2>&1 | grep Duration | cut -d ' ' -f 4 | sed s/,//
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You can try to use avconv command..

First you should to install:

Install via the software center

if you type the command with the flag -i, you will get information about the video:

avconv -i test.mp4

In the output there is a field called Duration

avconv version 0.8.4-4:0.8.4-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers
  built on Nov  6 2012 16:51:33 with gcc 4.6.3
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':

  Duration: 00:58:28.05, start: 0.000000, bitrate: 888 kb/s
    Stream #0.0(eng): Video: h264 (High), yuv420p, 720x404, 748 kb/s, 25 fps, 25 tbr, 20k tbn, 50 tbc
    Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16, 127 kb/s

Now you can use the command to only get the value of the field Duration

Type:

avconv -i file.mp4 2>&1 | grep 'Duration' | awk '{print $2}' | sed s/,//

In my case the result is:

00:58:28.05

58 Minutes and 28.05 seconds.

Hope this will helpful!

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This can also be used with avprobe - no need for the -i, but it otherwise works exactly the same way. Or ffprobe for @per's answer. –  evilsoup Dec 18 '12 at 7:54

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