[FFmpeg-devel] [PATCH] improve DV probe score

Michael Niedermayer michaelni
Mon Sep 14 01:34:32 CEST 2009

On Sun, Sep 13, 2009 at 11:35:35PM +0200, Reimar D?ffinger wrote:
> Hello,
> this is a suggestion for fixing issue1382.
> It returns the rather high probe value of 3/4 of max only when multiple
> DV-typical bit patterns were found (ca. 128 bit worth), otherwise only
> 1/3 of max.
> Though I think with the improved mp3 probe it might make sense to
> increase its values a bit, too...

feeding the probe code with random data or systematic nonsense should
as the amount of data is increased cause the returned score to fall
toward 0
your code can only increase its score as more data is added, this feels
quite incorrect

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Concerning the gods, I have no means of knowing whether they exist or not
or of what sort they may be, because of the obscurity of the subject, and
the brevity of human life -- Protagoras
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