bin/datamosh in aviglitch-0.2.0 vs bin/datamosh in aviglitch-0.2.2

@@ -6,10 +6,11 @@
 require 'aviglitch'
 
 output = './out.avi'
 all = false
 fake = false
+tmpdir = nil
 
 opts = OptionParser.new do |opts|
   opts.banner = "datamosh - AviGlitch's datamoshing video generator."
   opts.define_head "Usage: #{File.basename($0)} [options] file [file2 ...]"
   opts.separator "Options:"
@@ -26,14 +27,18 @@
     if all
       warn "The --fake option cannot use with -a/--all option.\n"
       exit
     end
   end
+  opts.on("--tmpdir [DIR]", "Specify the temporary directory") do |dir| 
+    tmpdir = dir
+  end
   opts.on_tail("-h", "--help", "Show this message") do
     puts opts
     exit
   end
+  opts.version = AviGlitch::VERSION
 end
 
 input = opts.parse!
 if input.empty?
   puts opts
@@ -46,11 +51,11 @@
       exit 1
     end
   end
 end
 
-a = AviGlitch.open input.shift
+a = AviGlitch.open input.shift, tmpdir: tmpdir
 unless fake
   a.glitch_with_index :keyframe do |frame, i|
     (!all && i == 0) ? frame : "" # keep the first frame
   end
 end
@@ -60,10 +65,10 @@
 else
   a.mutate_keyframes_into_deltaframes!
 end
 
 input.each do |file|
-  b = AviGlitch.open file
+  b = AviGlitch.open file, tmpdir: tmpdir
   unless fake
     b.glitch :keyframe do |frame|
       ""
     end
   end