shithub: opus

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Fixes a fixed-point divide-by-zero issue

--- a/celt/celt.c

+++ b/celt/celt.c

@@ -372,7 +372,7 @@

       }

 #endif

-      mean=EPSILON;

+      mean=0;

       mem0=0;

       /*  Grouping by two to reduce complexity */

       len/=2;

@@ -407,7 +407,7 @@

          ratio */

       /* Inverse of the mean energy in Q15+6 */

-      norm = SHL32(EXTEND32(len),6+14)/SHR32(mean,1);

+      norm = SHL32(EXTEND32(len),6+14)/ADD32(EPSILON,SHR32(mean,1));

       /* Compute harmonic mean discarding the unreliable boundaries

          The data is smooth, so we only take 1/4th of the samples */

       unmask=0;