Friday, August 10, 2007

MP4-ALS

I've been doing work recently on the MP4-ALS audio format. I am in the process of writing a decoder by first writing my own specification document based on the reference software. I may eventually break down and purchase the ISO specification, but doing my own specs seems to be going okay for now. Just to have a place to keep my work online and organized, I've applied for a new Sourceforge project which I'm calling Decals. I'm already stretched thin as far as programming projects, so there may not see a release for a while. Another reason I'm putting the work online is because I hope to get some help as well.

So far, my documentation is about 600 lines of text and already covers most of the decoding process. There are some modes which are more complex that haven't been done yet though. As for the code, it's now at about 750 lines, and consists of a partially-working parser covering much of what I've documented up to this point.

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