Originally committed as revision 9484 to svn://svn.ffmpeg.org/ffmpeg/trunk

and fix GPL/LGPL version mismatches.

Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5829 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

Originally committed as revision 5758 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5743 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5740 to svn://svn.ffmpeg.org/ffmpeg/trunk