CODEWITHSUNDEEP
shell
user55654
user55654

Reputation:

Using mplayer to determine length of audio/video file

The following works very nicely to determine the length of various audio/video files:

mplayer -identify file.ogg 2>/dev/null | grep ID_LENGTH

However, I want to kill mplayer's output so I can determine the length of many files more efficiently. How do I do that?

Upvotes: 13

Views: 16707

Answers (5)

Tanya Demeter
Tanya Demeter

Reputation: 1

Download your .mp3 file, play it with your Player (ex. Windows Media Player) and the player will show the total time at the end of play.

Upvotes: -1

nijoakim
nijoakim

Reputation: 958

There's another FF-way in addition to @codelogic's method, which doesn't exit with an error:

ffprobe <file>

and look for the duration entry.

Or grep for it directly in the error stream:

ffprobe <file> 2> >(grep Duration)

Upvotes: 3

rogerdpack
rogerdpack

Reputation: 66851

looks like there are a few other libs available, see time length of an mp3 file

Upvotes: 0

ephemient
ephemient

Reputation: 204926

The MPlayer source ships with a sample script called midentify, which looks like this:

#!/bin/sh
#
# This is a wrapper around the -identify functionality.
# It is supposed to escape the output properly, so it can be easily
# used in shellscripts by 'eval'ing the output of this script.
#
# Written by Tobias Diedrich <[email protected]>
# Licensed under GNU GPL.

if [ -z "$1" ]; then
        echo "Usage: midentify.sh <file> [<file> ...]"
        exit 1
fi

mplayer -vo null -ao null -frames 0 -identify "$@" 2>/dev/null |
        sed -ne '/^ID_/ {
                          s/[]()|&;<>`'"'"'\\!$" []/\\&/g;p
                        }'

The -frames 0 makes mplayer exit immediately, and the -vo null -ao null prevent it from trying to open any video or audio devices. These options are all documented in man mplayer.

Upvotes: 16

codelogic
codelogic

Reputation: 73712

FFMPEG can give you the same information in a different format (and doesn't attempt playing the file):

ffmpeg -i <myfile>

Upvotes: 6

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