Audio problem/API

ViperMAN

Hey all,

Does anyone have an idea how I could implement the following?

Im trying to write a program to queue and play music. My first idea was to have a database with a table of mp3 details (id, name, dir, etc) and a table called queue which would queue up the id's of the songs to be played. Then using the following code (java):

try{
   final String launch = "cmd /c start " + filePath;
   (Runtime.getRuntime()).exec(launch);
} catch (IOException e) ;

which would run the song in the default audio player. One problem with this way is how do I know when a song is finished- to delete the first in the queue and play the next? Anybody have any ideas to overcome this?

Or does someone know of an api to handle this section- you dont have to limit to java, I have a little experience in C# also and I'm willing to learn anything new to accomplish this.

Hopefully someone can help me out,
Thanks in advance...

Ginger

You could output the file list as a M3U file and pass that to the player. Then let the player let it handle it.

Otherwise you will have to create a wrapper than integrates into your selected music players than can send notification that the song has finished and request a new song...

lynchie

Have a read of JMF. It has a mp3 plugin so no need to spawn a separate process to play it.

ViperMAN

Thanks guys-

Had a quick look at the JMF- its looks like it does everything I need. Is there any C# APIs out there- I just want to keep all options open!

Done and dusted

C# API's Im not entirly sure, but i think I have seen some on the codeproject before (Some guy made his own version of winamp). If you cant find it post a message on the msdn forums in the c# section. If you do get an answer be sure to post the solution here in case someone else in the future finds themselfs in the same spot.

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Edit

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I found one of the articles on the codeproject about it: http://www.codeproject.com/KB/audio-video/mp3player.aspx its in C++ though. But it could give you a reason to go and learn a new language! I always find the that finding a solution which makes me go and learn some new technology always a good thing albeit very annoying

MSDN : http://www.google.ie/search?hl=en&q=MP3+player+msdn+forums&btnG=Google+Search&meta= the first link should help too

ViperMAN

Thanks for you help done and dusted-

I have found the following which might be of help:
C#:

Thread on C# MP3 player (sample code)

C# C-Sharpecorner Example C# Example MP3 Player

Sdl.NET MP3 player example code

Done and dusted

Cool, glad I could help!

Let us know how ya get on plus if you want someone to test the app for you I would be more than happy to give a dig out!

Happy Coding