diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
old mode 100644
new mode 100755
index a2d64d1..7a2905f
--- a/libavcodec/libx264.c
+++ b/libavcodec/libx264.c
@@ -282,14 +282,14 @@ static av_cold int X264_init(AVCodecContext *avctx)
     int sw,sh;
 
     x264_param_default(&x4->params);
-
     x4->params.b_deblocking_filter         = avctx->flags & CODEC_FLAG_LOOP_FILTER;
 
     x4->params.rc.f_ip_factor             = 1 / fabs(avctx->i_quant_factor);
     x4->params.rc.f_pb_factor             = avctx->b_quant_factor;
     x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
     if (x4->preset || x4->tune)
-        if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
+        if (/*x264_param_default_preset(&x4->params, x4->preset, x4->tune)*/
+            x264_param_default_preset(&x4->params, "superfast", "zerolatency") < 0) {
             int i;
             av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
             av_log(avctx, AV_LOG_INFO, "Possible presets:");