1 files changed, 13 insertions, 0 deletions
diff --git a/opl/opl_queue.c b/opl/opl_queue.c
index d05cc6a1..ee87a19b 100644
--- a/opl/opl_queue.c
+++ b/opl/opl_queue.c
@@ -201,6 +201,19 @@ unsigned int OPL_Queue_Peek(opl_callback_queue_t *queue)
     }
 }
 
+void OPL_Queue_AdjustCallbacks(opl_callback_queue_t *queue,
+                               unsigned int time, float factor)
+{
+    int offset;
+    int i;
+
+    for (i = 0; i < queue->num_entries; ++i)
+    {
+        offset = queue->entries[i].time - time;
+        queue->entries[i].time = time + (int) (offset * factor);
+    }
+}
+
 #ifdef TEST
 
 #include <assert.h>