Read from stream and decode up to outmemsize bytes.
\param mh handle
\param outmemory address of output buffer to write to
\param outmemsize maximum number of bytes to write
\param done address to store the number of actually decoded bytes to
\return MPG123_OK or error/message code
Read from stream and decode up to outmemsize bytes. \param mh handle \param outmemory address of output buffer to write to \param outmemsize maximum number of bytes to write \param done address to store the number of actually decoded bytes to \return MPG123_OK or error/message code