datamosh in aviglitch-0.1.0

- old
+ new

@@ -8,11 +8,11 @@
 output = './out.avi'
 all = false
 
 opts = OptionParser.new do |opts|
   opts.banner = "datamosh - AviGlitch's datamoshing video generator."
-  opts.define_head "Usage: #{File.basename($0)} <input> [options]"
+  opts.define_head "Usage: #{File.basename($0)} [options] file [file2 ...]"
   opts.separator "Options:"
   opts.on("-o", "--output [OUTPUT]", 
     "Output the video to OUTPUT (./out.avi by default)") do |f|
     output = f
   end
@@ -32,15 +32,15 @@
   exit 1
 end
 
 a = AviGlitch.open input.shift
 a.glitch_with_index :keyframe do |frame, i|
-  (!all && i == 0) ? frame : "\000" * frame.size # keep the first frame
+  (!all && i == 0) ? frame : nil # keep the first frame
 end
 input.each do |file|
   b = AviGlitch.open file
   b.glitch :keyframe do |frame|
-    "\000" * frame.size
+    nil
   end
   a.frames.concat b.frames
 end
 
 a.output output