diff --git a/mybashrc b/mybashrc
index 449de56..0fbaed6 100644
--- a/mybashrc
+++ b/mybashrc
@@ -756,12 +756,20 @@ _TRANSFER_AUDIO() {
 }
 
 _x265_encode() {
-    if [ "$#" -eq 1 ]; then
-        ffmpeg -i "$1" -c:v libx265 -crf 28 -c:a aac -b:a 160k "${1%.*}-x265.mp4"
-    else
-        for i in "$PWD"/*; do
-            ffmpeg -i "$i" -c:v libx265 -crf 28 -c:a aac -b:a 160k "${i%.*}-x265.mp4"
-        done
+    if [ "$#" -eq 0 ]; then
+        echo "Usage : ffmpeg-x265 <file> <options>"
+        echo "Options :"
+        echo "  -d : process all files in the current directory"
+    elif [ "$#" -eq 1 ]; then
+        if [ "$1" = "-d" ]; then
+            for i in "$PWD"/*; do
+                ffmpeg -i "$i" -c:v libx265 -crf 28 -c:a aac -b:a 160k "${i%.*}-x265.mp4"
+            done
+        else
+            if [ -f "$1" ]; then
+                ffmpeg -i "$1" -c:v libx265 -crf 28 -c:a aac -b:a 160k "${1%.*}-x265.mp4"
+            fi
+        fi
     fi
 }