mp3 frame size

Hi all,

I'm writing a program to walk through a mp3 file and check all the frames are intact etc. One thing I am having a problem with.

FrameSize = 144 * BitRate / SampleRate + Padding


This is all well and good until a VBR file. In vbr the bitrate is set to bin "0000". So the question is how do you calculate the frame size if you haven't got the bit rate?

Any one any ideas or have I missed the point somewhere?

Everso

you could always see if theres any code to help you here:http://home12.inet.tele.dk/mkaratha/

maybe you could post en email to someone on the site