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More energy quantisation work

--- a/libcelt/quant_bands.c

+++ b/libcelt/quant_bands.c

@@ -43,17 +43,21 @@

       float q;

       float res;

       float x;

-      float pred = .8*oldEBands[i];

+      float pred = .9*oldEBands[i];

       x = 20*log10(.3+eBands[i]);

       res = 1.0f;

-      qi = (int)floor(.5+res*(x-pred-prev)/res);

+      qi = (int)floor(.5+(x-pred-prev)/res);

       q = qi*res;

       //printf("%f %f ", pred+prev+q, x);

+      //printf("%d ", qi);

       oldEBands[i] = pred+prev+q;

-      prev = .7*q;

+      eBands[i] = pow(10, .05*oldEBands[i])-.3;

+      if (eBands[i] < 0)

+         eBands[i] = 0;

+      prev = .65*q;

    }

    //printf ("\n");

 }