/**
* Decodes @len bytes of data pointed to by @src from base224 encoding.
* All invalid characters are ignored. The result is stored into @dest
* and length of the result is returned.
*/
/**
* Decodes @len bytes of data pointed to by @src from base224 encoding.
* All invalid characters are ignored. The result is stored into @dest
* and length of the result is returned.
*/