fourcc.py

class FourCC:

    def __init__(self, code):
        if isinstance(code, str):
            code = sum([ord(c) << (i * 8) for i, c in enumerate(code)])
        self.code = int(code)

    def __int__(self):
        return self.code

    def __str__(self):
        return ''.join([chr((self.code >> (i * 8)) & 0xff) for i in range(4)])

    def __repr__(self):
        return '<FourCC int={} hex={} str={}>'.format(
            self.code,
            hex(self.code),
            str(self),
        )

    def __eq__(self, other):
        if isinstance(other, FourCC):
            return self.code == other.code
        elif isinstance(other, str):
            return str(self) == other
        else:
            return self.code == other


if __name__ == '__main__':

    import sys
    for x in sys.argv[1:]:
        try:
            code = int(x)
        except ValueError:
            try:
                code = int(x, 16)
            except ValueError:
                code = x
        print(repr(FourCC(code)))