hachoir-parser is a package of most common file format parsers written for Hachoir framework. Not all parsers are complete, some are very good and other are poor: only parser first level of the tree for example. . A perfect parser have no "raw" field: with a perfect parser you are able to know *each* bit meaning. Some good (but not perfect ;-)) parsers: * Matroska video * Microsoft RIFF (AVI video, WAV audio, CDA file) * PNG picture * TAR and ZIP archive
