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qoffset tuning

--- a/libcelt/rate.c

+++ b/libcelt/rate.c

@@ -195,9 +195,9 @@

       /* Changing the offset for allocating the second and third fine energy bit */

       if (bits[j] + offset < den*2<<BITRES)

-         offset += (m->logN[j] + logM)*N*C>>BITRES-1;

+         offset += (m->logN[j] + logM)*N*C>>2;

       else if (bits[j] + offset < den*3<<BITRES)

-         offset += (m->logN[j] + logM)*N*C>>BITRES;

+         offset += (m->logN[j] + logM)*N*C>>3;

       ebits[j] = (bits[j] + offset + (den<<(BITRES-1))) / (den<<BITRES);

--- a/libcelt/rate.h

+++ b/libcelt/rate.h

@@ -41,7 +41,7 @@

 #define BITRES 3

 #define FINE_OFFSET 21

-#define QTHETA_OFFSET 6

+#define QTHETA_OFFSET 4

 #define QTHETA_OFFSET_STEREO 4

 #define BITOVERFLOW 30000