shithub: opus

Info  •  Files  •  Log  •  Branches

Fixes an overflow in the fixed-point celt_sqrt() for large values.

Was causing problems with the PLC

--- a/celt/mathops.c

+++ b/celt/mathops.c

@@ -123,6 +123,8 @@

    static const opus_val16 C[5] = {23175, 11561, -3011, 1699, -664};

    if (x==0)

       return 0;

+   else if (x>=1073741824)

+      return 32767;

    k = (celt_ilog2(x)>>1)-7;

    x = VSHR32(x, 2*k);

    n = x-32768;