length of song

Hii=20
I am developing an cd's burner based in gtk2 and gstreamer, I need
calculate song's length without reproducing the songs, because it's
slow.
There is some form to calculate the time of the songs without
reproducing them?

thanks

PD: Sorry, my english is very bad, my translator has gone.
--=20
Software patents kill innovation.
	-- NO to software patents
	   http://swpat.ffii.org
                    =20
		Jos=E9 Gonz=E1lez Monlle=F3
Estudiante de Ingenieria T=E9cnica en Informatica de Sistemas
JID: 	gonzalez (at) aditel (dot) org
mail;	gonzalez (at) aditel (dot) org


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