[Ffmpeg-devel] [PATCH] flacenc - add basic stereo decorrelation

Michael Niedermayer michaelni
Mon Jun 26 00:11:36 CEST 2006


On Sun, Jun 25, 2006 at 05:02:00PM -0400, Justin Ruggles wrote:
> The estimation method calculates the sum of squares for left, right,
> mid, and side channels.  It uses the minimum of L+R, L+S, R+S, or M+S.
> I am open to any suggestions for methods that might work better.

maybe using the differences from the last values would be more
accurate (lt = left_ch[i] - left_ch[i-1]; ...)

and i think though i might be wrong that the sum of absolute values will
be a better choice then the sum of squares for estimating the number of
bits which is after all what matters in the decission of the decorrelation

except these iam fine with the patch


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

In the past you could go to a library and read, borrow or copy any book
Today you'd get arrested for mere telling someone where the library is

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