--- encoder.c	2017-09-20 10:57:41.280806558 -0500
+++ encoder.c-new2	2017-09-20 11:05:03.432834175 -0500
@@ -543,10 +543,10 @@
         h->param.i_threads = x264_cpu_num_processors() * (h->param.b_sliced_threads?2:3)/2;
         /* Avoid too many threads as they don't improve performance and
          * complicate VBV. Capped at an arbitrary 2 rows per thread. */
-        int max_threads = X264_MAX( 1, (h->param.i_height+15)/16 / 2 );
+        int max_threads = X264_MAX( 1, ( 16 );
         h->param.i_threads = X264_MIN( h->param.i_threads, max_threads );
     }
-    int max_sliced_threads = X264_MAX( 1, (h->param.i_height+15)/16 / 4 );
+    int max_sliced_threads = X264_MAX( 1, (h->param.i_height+15)/16 / 8 );
     if( h->param.i_threads > 1 )
     {
 #if !HAVE_THREAD