nice work done on Julia set

Fraktalism/encode.sh

@@ -12,13 +12,34 @@ SDIR="$1"
 FNAME="$2"
 echo "Encoding from " $SDIR " to " $FNAME
 
+#
+#  trying to guess the format of inoput files
+#
+firstfile=$(ls -1 $SDIR/* | head -1)
+echo "first file :" $firstfile
+filetype=$(file $firstfile | awk '{ print $2 }')
+echo "file type  :" $filetype
+
+#
+# this is BOGUS, replace file by identify ?
+#
+case  $filetype in
+        PNG)            extension=".png"                ;;
+        Netpbm)         extension=".pgm"                ;;
+        *)              extension=".binary"             ;;
+esac
+echo "extension  :" $extension
+
+
+
 TITLE='---{ experimental }---'
 
 ffmpeg  -nostdin					\
 	-loglevel warning				\
-	-y -r 25 -f image2 -i $SDIR/%05d.png 		\
+	-y -r 30 -f image2 -i $SDIR/%05d.pnm 		\
 	-metadata artist='---{ tTh }---'		\
 	-metadata title="${TITLE}"			\
+ 	-preset veryslow				\
 	-c:v libx264 -pix_fmt yuv420p			\
 	$FNAME