@@ -382,11 +382,11 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *buf)

     }

     for (ch = 0; ch < buf->audio->channels; ch++)

-        p->filter((const float *)buf->extended_data[ch],

-                   (float *)out_buf->extended_data[ch], nb_samples,

-                   &p->cache[ch].i1, &p->cache[ch].i2,

-                   &p->cache[ch].o1, &p->cache[ch].o2,

-                   p->b0, p->b1, p->b2, p->a1, p->a2);

+        p->filter(buf->extended_data[ch],

+                  out_buf->extended_data[ch], nb_samples,

+                  &p->cache[ch].i1, &p->cache[ch].i2,

+                  &p->cache[ch].o1, &p->cache[ch].o2,

+                  p->b0, p->b1, p->b2, p->a1, p->a2);

     if (buf != out_buf)

         avfilter_unref_buffer(buf);