IIR is a C++ library that implements fast IIR filters: bandpass, bandstop, lowpass, and highpass. These can be designed using popular analogue filter functions such as Butterworth, Bessel, Chebyshev, Elliptic, Legendre, and pole placement. Creation of a complete filter requires only a single command and filtering is performed with a single function taking a sample and returning its result instantly. The library is template-based and avoids new/mallocs throughout. This library has been adapted form Vinnie Falco's original work and has been converted to run on Unix systems and turned into a realtime causal filter.
ClusterShell is a set of tools and an event-based Python library to execute commands on local or remote cluster nodes in parallel. The framework also provides advanced methods for handling node sets and node groups to ease and improve administration of large compute clusters or server farms. Three convenient command line utilities, clush, clubak, and nodeset, allow traditional shell scripts to benefit some useful features offered by the library.
jPDFNotes is a Java bean component which can be integrated into Java applications or deployed on the Web in an applet or using Java Web start. It allows users to mark up, review, and annotate PDF documents online. Most PDF annotations and features are supported, including graphical, sound, free text, typewriter, measurements (distance, perimeter, and area), file attachments, and bookmarks. All PDF fonts are supported (Types 0-3, OpenType, and TrueType).
jWordConvert is a Java library which can read and render Word documents natively to convert to PDF, to convert to images, or to print the documents automatically. The library is 100% Java, so it can run on any platform which supports Java. It does not use any third party software or native calls, and can be run in a server environment or integrated into a desktop application.
jPDFWriter is a Java class library to create PDF documents directly from Java programs without having to install any third party drivers or software. It emulates the standard Java classes to print and draw graphics to reduce the learning curve when using the library and reuse existing code. It can create PDF files in two ways: PDF files can be created directly using jPDFWriter's very simple API (simply create a PDFDocument object, create as many PDFPage objects as necessary, draw strings, graphics, or any other elements supported by Graphics2D to the pages, and save the document), or jPDFWriter can extend the standard Java PrinterJob to create PDF files as though printing to a physical printer. This allows reuse of existing printing code and lets an application decide, at runtime, whether to send the output to a printer or to a PDF file. PDF files can be saved to files on a disk, written to a java.io.OutputStream, or written directly to a javax.servlet.ServletOutputStream to show in a browser when working within a J2EE application server. jPDFWriter is written entirely in Java, so application portability and operating system independence are not compromised.
jPDFProcess is a Java library to work with PDF documents which can be used to deliver customized PDF content to your users or to process and manipulate incoming PDF content. The library has a simple interface to work with PDF documents and is designed to be integrated easily and seamlessly into your PDF document workflow. jPDFProcess provides the functionality found in many other Qoppa Software libraries, including printing, setting permissions and security, creating and assembling documents, digital signing, working with form fields, extracting text, and more. It can work with PDF documents from files, URLs, and input streams, and can save documents to files and output streams, so it can serve documents from a J2EE application directly to a client browser without any temporary files. jPDFProcess is platform-independent, and can be used in any environment which supports Java.
jPDFPrint is a Java library which can load and print Acrobat PDF documents directly from your Java programs or applets with or without user intervention. It is built on top of Qoppa Software's proprietary PDF technology, so there is no need for any third party software or drivers. Simply call the library from your Java programs, and documents can be sent to the printer.
MMLi is a simple Music Macro Language interpreter written in ISO C99. The Music Macro Language originated in 8-bit BASIC implementations (as part of the “PLAY” command), and can still be found in modern BASICs (like QB64) and in system software (like FreeBSD's spkr.c driver.) This interpreter features an example "mmlitest" program which can be used to translate MML sequences into beep(1) commandline arguments.