shithub: opus

Download patch

ref: 184a4767aad0e813cffa4aa178e0c161a4d17253
parent: 4c9ce97dbfa5f2ab0fb142a6794318444852a23b
author: Jean-Marc Valin <[email protected]>
date: Thu Jul 21 17:56:55 EDT 2016 

getting rid of a PLC overflow (I think)


--- a/celt/celt_decoder.c
+++ b/celt/celt_decoder.c
@@ -630,7 +630,7 @@
             tmp = ROUND16(
                   buf[DECODE_BUFFER_SIZE-MAX_PERIOD-N+extrapolation_offset+j],
                   SIG_SHIFT);
-            S1 += SHR32(MULT16_16(tmp, tmp), 8);
+            S1 += SHR32(MULT16_16(tmp, tmp), 9);
          }
 
          {
@@ -654,7 +654,7 @@
             for (i=0;i<extrapolation_len;i++)
             {
                opus_val16 tmp = ROUND16(buf[DECODE_BUFFER_SIZE-N+i], SIG_SHIFT);
-               S2 += SHR32(MULT16_16(tmp, tmp), 8);
+               S2 += SHR32(MULT16_16(tmp, tmp), 9);
             }
             /* This checks for an "explosion" in the synthesis. */
 #ifdef FIXED_POINT