Displaying an .aif file as a Waveform

[Malte Brill]

Hello list, 

perhaps someone of you can help me.
I want to display the waveform of an .aif file. The routine does not need to
be fast. It is not necessary, that I can display the waveform in realtime.
Does anybody know where I can find the specs for .aiffiles?
Is it something like

-header
-mediatypes
-data

Or has somebody allready coded something?

Any help greatfully apprecheated.

Regards,

Malte