maybe this should be moved to libavutil ...


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fix playback of theora.ogg on mphq patch by (matthieu castet %% castet dat matthieu ot free dat fr %%)


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replace *_dequant (2 intra, 1 inter) by qmat (3 intra, 3 inter) (needed for theora according to spec)


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this change is messy as whoever wrote the original code copied the GetBitContext instead of passing a pointer to it which has to be fixed for the above thing


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available to external programs as well.
Also make more things available to external programs like GET_UTF8, MKTAG etc.


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calculate all coefficients for several orders during cholesky factorization, the resulting coefficients are not strictly optimal though as there is a small difference in the autocorrelation matrixes which is ignored for the smaller orders



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based on patch by Víctor Paesa wzrlpy at arsystel com


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and similar since $libdir contained $prefix, which contained $(DESTDIR)..


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  this will find the coefficients which minimize the sum of the squared errors, 
  levinson-durbin recursion OTOH is only strictly correct if the autocorrelation matrix is a
  toeplitz matrix which it is only if the blocksize is infinite, this is also why applying
  a window (like the welch winodw we currently use) improves the lpc coefficients generated
  by levinson-durbin recursion ...

optionally (use_lpc>2) support iterative linear least abs() solver using cholesky 
  factorization with adjusted weights in each iteration

compression gain for both is small, and multiple passes are of course dead slow
	    


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Removes one of the last FIXMEs from the build system.


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