Get MP3 File Lengths

Question

I have 20 mp3 chapter files in a list (per audio book) in a WPF c# that i need to parse to get the lengths of.

I'm currently looping around the following code which is hugely inefficient

MediaElement currentmp3 = new MediaElement();

currentmp3.UnloadedBehavior = MediaState.Manual;
currentmp3.LoadedBehavior = MediaState.Manual;

currentmp3.MediaOpened += new RoutedEventHandler(currentMp3_MediaOpened);
currentmp3.Source = new Uri(filename);
currentmp3.Play();
currentmp3.Pause();

currentmp3.UpdateLayout();
// if i dont add this it doesnt give the time.
Thread.Sleep(1000);

if (currentmp3.NaturalDuration.HasTimeSpan)
    chapter.ChapterLength = currentmp3.NaturalDuration.TimeSpan;

currentmp3.Stop();

It takes up to 30 seconds to process.

Any suggestions on how to improve performance or anyone aware of any native / 3rd party utils that can do the same job quicker ?

This information is probably saved in the file format itself. Maybe look for a library that can read the ID3 tags. — eandersson, Mar 02 '12 at 15:57
Please try to keep tags like "C#" out of your titles. Instead, just keep them in the tags. — John Saunders, Mar 02 '12 at 15:58
possible duplicate: http://stackoverflow.com/questions/1214040/how-to-get-the-length-of-a-mp3-in-c-sharp — vulkanino, Mar 02 '12 at 15:58
possible duplicate of [Finding MP3 length in C#](http://stackoverflow.com/questions/1007547/finding-mp3-length-in-c-sharp) — Chris Shain, Mar 02 '12 at 16:08

eandersson · Answer 1 · 2012-03-02T16:08:27.593

0

I would try to read the ID3 tags in the MP3 files. This should allow you to get the data you need faster.

This library contains everything that you should need, but the question is if it's in the ID3 tag or if you need to scan the file (which takes time). http://sourceforge.net/projects/csid3lib/

This library might also be useful. http://sourceforge.net/projects/mpg123net/

edited Mar 02 '12 at 16:08

answered Mar 02 '12 at 15:59

eandersson

25,781
8
89
110

Get MP3 File Lengths

1 Answers1