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Making the pulsesAtOnce code 16-bit safe.

--- a/libcelt/vq.c

+++ b/libcelt/vq.c

@@ -111,7 +111,7 @@

    ALLOC(y, N, celt_norm_t);

    ALLOC(iy, N, int);

    ALLOC(signx, N, int);

-   N_1 = 16384/N;

+   N_1 = 512/N;

    for (j=0;j<N;j++)

    {

@@ -148,7 +148,7 @@

       int best_id;

       /* Decide on how many pulses to find at once */

-      pulsesAtOnce = (pulsesLeft*N_1)>>14; /* pulsesLeft/N */

+      pulsesAtOnce = (pulsesLeft*N_1)>>9; /* pulsesLeft/N */

       if (pulsesAtOnce<1)

          pulsesAtOnce = 1;