1 files changed, 3 insertions, 2 deletions
diff --git a/libavcodec/acelp_filters.c b/libavcodec/acelp_filters.c
index 2aedbddab3..fb52d0f8c9 100644
--- a/libavcodec/acelp_filters.c
+++ b/libavcodec/acelp_filters.c
@@ -116,13 +116,14 @@ int ff_acelp_lp_synthesis_filter(
         const int16_t* in,
         int buffer_length,
         int filter_length,
-        int stop_on_overflow)
+        int stop_on_overflow,
+        int rounder)
 {
     int i,n;
 
     for(n=0; n<buffer_length; n++)
     {
-        int sum = 0x800;
+        int sum = rounder;
         for(i=1; i<filter_length; i++)
             sum -= filter_coeffs[i] * out[n-i];