diff --git a/scripts/convert-videos.sh b/scripts/convert-videos.sh
index 69ac6e3..0f349c4 100755
--- a/scripts/convert-videos.sh
+++ b/scripts/convert-videos.sh
@@ -4,12 +4,13 @@ SRC=${1:-.}
 DST=${2:-/var/tmp/spielfilme}
 
 declare -A FLAGS
-FORMATS=( "ogg" "webm" "mp4" )
+FORMATS=${FORMATS:-( "ogg" "webm" "mp4" )}
 FLAGS["ogg"]="-c:v libtheora -c:a libvorbis -q:v 6 -q:a 5"
 FLAGS["webm"]="-vcodec libvpx -acodec libvorbis -f webm -aq 5 -ac 2 -qmax 25 -threads 2"
 FLAGS["mp4"]="-vcodec libx264 -acodec aac -strict experimental -crf 19"
 
-for f in $(find "$SRC" \( \( -name '.??*' -o -name '*.jpg' \) -prune \) -o -type f -print); do
+do_convert() {
+    f="$1"
     for format in "${FORMATS[@]}"; do
         t="${f/$SRC/$DST}"
         t="${t%.*}.${format}"
@@ -25,4 +26,16 @@ for f in $(find "$SRC" \( \( -name '.??*' -o -name '*.jpg' \) -prune \) -o -type
 	    rm "$t"; # remove file if conversion failed
         fi
     done
-done
+}
+
+if test -d "$SRC"; then
+    for f in $(find "$SRC" \( \( -name '.??*' -o -name '*.jpg' \) -prune \) -o -type f -print); do
+        do_convert "$1"
+    done
+else
+    IFS="
+"
+    for f in $SRC; do
+        do_convert "$1"
+    done
+fi