标准MIDI文件格式，达思挺·考德威尔。附dec和rec源码-Standard MIDI file format, by Dustin Caldwell. Attachment is source code of decode and rec.

source code of vlc. it can decode many codecs.

This class will bring in an image, and either encode * a message in the least significant bit of the pixels, * or decode a message that is already there. * For encoding, you must load a jpg, and save it as a png. * For decoding, you must