diff --git a/main.aardio b/main.aardio
index dfd8f08..61e4457 100644
--- a/main.aardio
+++ b/main.aardio
@@ -87,13 +87,12 @@ mainForm.plus.oncommand = function(id,event){
         videoPath = path;
         var tpath = io.splitpath(path);
         var vpath = io._exedir+"temp\"+tpath.name+"\";
-        if(io.exist(vpath)){
-            fsys.delete(vpath);
+        if(!io.exist(vpath)){
+            io.createDir(vpath)
         }
-        io.createDir(vpath)
         
         //var ffmpeg = process.ffmpeg(,"-i "+path+" -vf fps=1 "+vpath+"\%04d.png");
-        var ffmpeg = process.ffmpeg(, `-i `++path++` -vf "select=eq(n\,0)" -vframes 1 `++vpath++`\0001.png`);
+        var ffmpeg = process.ffmpeg(, `-i `++path++` -vf "select=eq(n\,0)" -vframes 1 -y `++vpath++`\0001.png`);
         ffmpeg.logResponse(mainForm.edit);
         
         ffmpeg.onResponseEnd = function(){
@@ -154,14 +153,15 @@ mainForm.plus3.oncommand = function(id,event){
 	
 	var 二维码裁剪后宽度 = frmChild.width / scaleRatio;
 	var 二维码裁剪后高度 = frmChild.height / scaleRatio;
-	var qrcodePath_new = qrpath.dir ++ qrpath.name ++ "-output" ++ qrpath.ext;
+	var qrcodePath_new = io._exedir++"temp\"++ qrpath.name ++ "-output" ++ qrpath.ext;
 	
 	// ffmpeg -i input.jpg -vf "scale=width:height" output.jpg
-	var ffmpeg = process.ffmpeg(, `-i `++ qrcodePath ++` -vf "scale=`++ 二维码裁剪后宽度 ++`:`++ 二维码裁剪后高度 ++`" `++qrcodePath_new);
+	var ffmpeg = process.ffmpeg(, `-i `++ qrcodePath ++` -vf "scale=`++ 二维码裁剪后宽度 ++`:`++ 二维码裁剪后高度 ++`" -y `++qrcodePath_new);
+
 	ffmpeg.logResponse(mainForm.edit);
 	ffmpeg.onResponseEnd = function(){
 		// ffmpeg -i input.mp4 -i overlay.png -filter_complex "overlay=10:10" output.mp4
-		var str = `-i `++ videoPath ++` -i `++ qrcodePath_new ++` -filter_complex "overlay=`++ x ++`:`++ y ++ `" ` ++ vpath.dir ++ vpath.name ++`-output`++vpath.ext;
+		var str = `-i `++ videoPath ++` -i `++ qrcodePath_new ++` -filter_complex "overlay=`++ x ++`:`++ y ++ `" -y ` ++ vpath.dir ++ vpath.name ++`-output`++vpath.ext;
 		var ffmpeg = process.ffmpeg(, str);
 		ffmpeg.logResponse(mainForm.edit);
 		ffmpeg.onResponseEnd = function(){