How to stream .mp3 from computer.

Ok, so I know this question has been asked alot. I have spent the past 2 hours reading posts about it and trying to figure it out. However I cannot seem to find any posts that are clear and makes sense to me.

I have my program able to use .wav and .ogg from the hard drive, so I know how to do that. It is just the mp3 format that is the issue.

I understand that the basics of what needs to happen is to grab the mp3 data, decode the mp3, create a new audio file from that data, and then put it into the audio source.

I see alot of posts of "Download this plugin and it will work." however im not quite sure how to use those plugins or they throw errors at me because files are missing.

If anyone could give me a comprehensive answer, or point me to an existing one, to help me understand the full process it would be greatly appreciated. For some reason I am just not able to wrap my head around all of this.