Memory leak fix patch by (Burkhard Plaum <plaum >at< ipf.uni-stuttgart )dot( de>)

Originally committed as revision 3717 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/utils.c

@@ -89,6 +89,26 @@ void *av_mallocz_static(unsigned int size)
     return ptr;
 }
 
+/**
+ * same as above, but does realloc
+ */
+
+void *av_realloc_static(void *ptr, unsigned int size)
+{
+    int i;
+    if(!ptr)
+      return av_mallocz_static(size);
+    /* Look for the old ptr */
+    for(i = 0; i < last_static; i++) {
+        if(array_static[i] == ptr) {
+            array_static[i] = av_realloc(array_static[i], size);
+            return array_static[i];
+        }
+    }
+    return NULL;
+
+}
+
 /**
  * free all static arrays and reset pointers to 0.
  */