--- a/ffmpeg.xml	Wed Oct 18 13:42:31 2017 -0400
+++ b/ffmpeg.xml	Wed Oct 18 13:51:23 2017 -0400
@@ -17,11 +17,12 @@
     #for $i in $conversion_cond.input:
         #set input_filename = $i.file_name
         #set full_name = $i.name
-        #set base_name = $full_name.split('.')[0:-1]
         #set ext = $i.ext
         ln -s $input_filename input_dir/$full_name &&
         #if str($ext) != 'jpg':
-            ffmpeg -i input_dir/$full_name input_dir/$base_name.jpg &&
+            #set base_name = $full_name.split('.')[0]
+            #set jpg_name = '%s.jpg' % $base_name
+            ffmpeg -i input_dir/$full_name input_dir/$jpg_name &&
         #end if
     #end for
     #if str($output_process_log) == 'yes':