1 files changed, 4 insertions, 5 deletions

diff --git a/apps/codecs/libwmapro/wmapro_mdct.c b/apps/codecs/libwmapro/wmapro_mdct.c
index 12cd8ce024..aaa95dccdf 100644
--- a/apps/codecs/libwmapro/wmapro_mdct.c
+++ b/apps/codecs/libwmapro/wmapro_mdct.c
@@ -5,10 +5,10 @@
 #include "../lib/fft.h"     /* for FFT data structures */
 #include "codeclib.h"
 #include "../lib/codeclib_misc.h" /* for XNPROD31 */
+#include "wmapro_math.h"
 
 void imdct_half(unsigned int nbits, int32_t *output, const int32_t *input){
     int k, n8, n4, n2, n, j;
-    //const uint16_t *revtab = s->revtab;
     const int32_t *in1, *in2;
     FFTComplex *z = (FFTComplex *)output;
 
@@ -23,10 +23,9 @@ void imdct_half(unsigned int nbits, int32_t *output, const int32_t *input){
     const int revtab_shift = (14- nbits);
     in1 = input;
     in2 = input + n2 - 1;
-    int step = 2<<(12-nbits);
     for(k = 0; k < n4; k++) {
         j=revtab[k]>>revtab_shift;
-        XNPROD31(*in2, *in1, T[1]<<16, T[0]<<16, &z[j].re, &z[j].im );
+        XNPROD31(*in2<<2, *in1<<2, T[1]<<14, T[0]<<14, &z[j].re, &z[j].im );
         in1 += 2;
         in2 -= 2;
         T += 2;
@@ -39,8 +38,8 @@ void imdct_half(unsigned int nbits, int32_t *output, const int32_t *input){
     const int32_t *V = T;
     for(k = 0; k < n8; k++) {
         int32_t r0, i0, r1, i1;
-        XNPROD31(z[n8-k-1].im, z[n8-k-1].re, T[0]<<16, T[1]<<16, &r0, &i1 );
-        XNPROD31(z[n8+k  ].im, z[n8+k  ].re, V[0]<<16, V[1]<<16, &r1, &i0 );
+        XNPROD31(z[n8-k-1].im, z[n8-k-1].re, T[0]<<8, T[1]<<8, &r0, &i1 );
+        XNPROD31(z[n8+k  ].im, z[n8+k  ].re, V[0]<<8, V[1]<<8, &r1, &i0 );
         z[n8-k-1].re = r0;
         z[n8-k-1].im = i0;
         z[n8+k  ].re = r1;