swf util is a lightweight tool to read swf header、compress/decompress swf for Ruby.It is implemented in pure ruby.

Example:

• read swf'sheader

require 'rubygems'
require 'swfheader'
header=SwfUtil.read_header("test.swf")

header.inspect

header.version

header.frame_rate

header.width
...

• compress swf file

   SwfUtil::compress_swf("test.swf","test_compressed.swf")

• Decompress swf file

  SwfUtil::decompress_swf("test_compressed.swf","test_decompressed.swf")