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Rockbox mail archiveSubject: Re: Buffer UnderrunRe: Buffer Underrun
From: gerald clark <gerald_clark_at_mindspring.com>
Date: Mon, 13 Jan 2003 18:52:39 -0600 In view of your explanation, I have re-tested. I wait for the drive to spin down before playing the MP3. This assures a spin-up to get a proper water mark. The watermark value is the same, no matter what anti-skip is set to. It always appears as A410. I stop playing, and wait for the drive to spin down. I play the file again, and the watermark includes anti-skip time. The water mark value does not include anti-skip time until the 2nd spinup. At this point, the buffer has underrun. Linus Nielsen Feltzing wrote: > gerald clark wrote: > >> It does not appear to be calculating the watermark on the first play. > > > The watermark calculation is based on the hard drive spinup time, which > is measured when the drive spins up. Tus, no watermark calculation can > be done until that time is measured, that is when the drive spins up > again after being idle. > Until then, the default value of 0x60000 is used. > >> It does not appear to read the Anti skip value unless you change it. > > > The watermark calculation includes the anti-skip time, and will not be > used until the next spin-up. > > /Linus > > -- Gerald L. Clark Aero TerraTrike #1 http://www.wizwheelz.com/images/clarkaerotrike1.jpg Member: Sky Soaring Illinois, U.S.A. Archos Recorder JBR20101 1.28 0x302 positive 0x200 positive 11.0592Received on 2003-01-14 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |