time length of an mp3 file

Question

What is the simplest way to determine the length (in seconds) of a given mp3 file, without using outside libraries? (python source highly appreciated)

Answer 1

For google followers' sake, here are a few more external libs:

mpg321 -t

ffmpeg -i

midentify (mplayer basically) see Using mplayer to determine length of audio/video file

mencoder (pass it invalid params, it will spit out an error message but also give you info on the file in question, ex $ mencoder inputfile.mp3 -o fake)

mediainfo program http://mediainfo.sourceforge.net/en

exiftool

the linux "file" command

mp3info

sox

refs: https://superuser.com/questions/36871/linux-command-line-utility-to-determine-mp3-bitrate

http://www.ruby-forum.com/topic/139468

mp3 length in milliseconds

(making this a wiki for others to add to).

and libs: .net: naudio, java: jlayer, c: libmad

Cheers!