Free multithreaded software for linux

MuSE is a user-friendly tool for network audio streaming.
MuSE provides the free software community with a user friendly but powerful tool for network audio streaming, making life easier for indypendent free speech online radios.
MuSE is an application for the mixing, encoding, and network streaming of sound: it can mix up to 6 encoded audio bitstreams (from files or network, mp3 or ogg) plus a souncard input signal, the resulting stream can be played locally on the sound card and/or encoded at different bitrates, recorded to harddisk and/or streamed to the net.
When sent to a server, the resulting audio can be listened thru the net by a vast number of players available on different operating systems.
To be operated MuSE offers graphical interfaces and a documented commandline interface in the good old unix style.
Main features:
- Mixes up to 6 channels + 1 soundcard input channel simultaniously
- decodes and mixes both ogg and mp3, from files or network streams
- encodes at different bitrates and sends multiple mp3 or ogg streams to icecast, shoutcast and darwin servers.
- offers two different intuitive user interfaces and a documented command line interface
- play, stop, pause/resume, position and volume for each channel, looping thru playlists and reconnecting automatically to lost server connections
- efficient multithreaded architecture with emphasys on performance to support older CPUs
- reusable API interface to the core mixing engine permits to adapt new interfaces

Libmtrwes purpose is to connect a data producer and consumer with optional encoders transparently managing sync issues in a multithreaded environment (GNU phtreads tested).

The user should only provide the routines (or use the supplied ones) and forget all the rest.

Provided examples show a Digital Audio Extractor, an ogg decoder, a mp3 encoder...

Im working on it, it seems to be somewhat stable (not the alarm code. All the buffering systems have been tested. It lacks some serious error management code and signal handling needs testing.

SMTP Relay Checker is a fully configurable, multithreaded open mail relay scanner. It supports scanning of IP blocks, and can print the results to a Web page.
SMTP Relay Checker is intended for Systems Administrators to check IP blocks under their control.
Compilation / Installation
To build SmtpRC please run "make" in the package directory. This will build the package and create the binary "smtprc". To install the package, please run "make install".
By Default, the binary will be installed into /usr/local/bin/, configuration files will be installed under /usr/local/etc/smtprc/ and all documentation files will be installed under /usr/local/share/doc/smtprc/. Please see below for a full list of installed files.
/usr/local/bin/smtprc
/usr/local/bin/gsmtprc
/usr/local/etc/smtprc/auto.conf
/usr/local/etc/smtprc/email.tmpl
/usr/local/etc/smtprc/rcheck.conf
/usr/local/share/doc/smtprc/README
/usr/local/share/doc/smtprc/FAQ
/usr/local/man/man1/smtprc.1
/usr/local/man/man1/gsmtprc.1
Using Smtprc
SmtpRC can be run by specifying options on the command line, or by configuring an "auto configuration" file and letting SmtpRC parse the options from there. The latter is recommended.
When SmtpRC is installed, a example "auto configuration" file is installed in "/usr/local/etc/smtprc/auto.conf". Edit this file, changing the values to suit your specific network requirements and run smtprc with the following option (a full list of options
is detailed below):
"/usr/local/bin/smtprc -j /usr/local/etc/smtprc/auto.conf"
To be sure that a mailserver relays third-party email, SmtpRC will attempt to relay mail to an address specified. It is recommended that this address is a mailbox on the local machine that is being used to run SmtpRC - pop support is a planned feature, but for now, SmtpRC only supports checking local mailboxes (mbox and Maildir). Create a new user account (smtprc), specify the email address for this account, and the local mailbox (on the command line or in the "auto configuration" file), and SmtpRC will attempt to relay emails to this address and check for recieved emails after scanning.
There is also a GUI interface to smtprc (gsmtprc) that is installed in /usr/local/bin. This requires Perl Tk to run.
Enhancements:
- Fixes a race condition between the master and reaper threads.

Niliada is a library of Lisp-like objects in Ada-95.

It features a real time garbage collector. Niliada library is useful for massively multithreaded applications in a mission critical environment.

HandBrake application is a GPLd multiplatform, multithreaded DVD to MPEG-4 ripper/converter. HandBrake was originally available on the BeOS, but now has been ported over to MacOS X and to GNU/Linux.
Main features:
Supported sources:
- Any DVD-like source: VIDEO_TS folder, DVD image or real DVD (even encrypted)
- PAL or NTSC
- AC-3, LPCM or MPEG audio tracks
Outputs:
- File format: MP4, AVI or OGM
- Video: MPEG-4 or H.264 (1 or 2 passes or constant quantizer encoding)
- Audio: AAC, MP3, Vorbis or AC-3 pass-through (supports encoding of several audio tracks)
Misc features
- Chapter selection
- Basic subtitle support (burned into the picture)
- Integrated bitrate calculator
- Picture deinterlacing, cropping and scaling
- Grayscale encoding

GPalta is a genetic programming toolbox that aims for simplicity and speed.
GPalta features tree-based genetic programming, optional strong typing, a multithreaded GUI to control an evolution process, the ability to save evolutions to a file, to be continued at another time and place, and easy interoperability with Matlab.
Main features:
- Tree based genetic programming
- Strongly Typed (optional)
- Multithreaded GUI to control an evolution process
- Evolutions can be saved to file, and be continued later (and/or elsewhere)
- For GP aplications, all you have to do is provide fitness cases, configure some usual GP options and click go (or call evolve from Matlab)
- For advanced research, GPalta can be easily extended with custom nodes, fitness, operators, etc
GPalta is released under the terms of the GNU General Public License.

FreeJ project is an instrument for realtime manipulation of various video layers combined with live effects. Layers are implemented to mix together webcams, TV, movie files, images and text and can be rendered in various ways.
FreeJ can be operated live using hotkeys, also remotely over networks (VJoE), while operations can also be scripted in a object oriented procedural language (Javascript). The core engine is multithreaded and asynchronous so it can accept various controllers at the same time: by now MIDI and joystick controls are implemented.
FreeJ is being developed in the hope to provide the GNU community with a free instrument for video manipulation: to be employed in veejaying, theater performance and digital scenography, while at present is also being used for visualisation in medical analisys.
FreeJ, as a free modularized GNU/Linux framework, makes it easy to write simple effect algorithms and combine them with others, obtaining multiple results and keeping them compatible with as much devices as possible.
FreeJ is written with efficiency in mind, benefits of a realtime object oriented architecture that makes efficient use of multithreading (in which the layers run in parallel), also taking advantage of multiple CPUs and cluster systems.
The language employed in development is C/C++ respecting POSIX compliance and avoiding the computational bloat of some advanced C++ functions.
Its API is fairly understandable, youll also find a first description in the documentation section.
Main features:
- live compositing of multiple webcams, TV signals,
- movie files, images, TXT files, particle generators and more..
- can be remotely controlled (VJoE)
- can be scripted in procedural object oriented language
- no frame drop when looping movie clips
- Emacs/Vi style console with hotkeys (S-Lang)
- can accept asynchronous controllers at the same time
- (Midi, joystick and more coming..)
- very efficient video engine with multithreaded layers
- 100% GNU Public License Free Software
- modular C/C++ code and flexible API
Version restrictions:
- a GNU/Linux or Apple/OSX workstation (see README.OSX)
- Simple Directmedia Layer library
- S-Lang console library
Enhancements:
- encoding to Ogg/Theora video file
- live streaming to Icecast2
- initial support for audio
- improvements to script functionality
- some libraries are now statically included

. Its syntax is almost identical to that of the Interactive Data Language (IDL).
Main features:
- all language elements are supported
- multithreaded operators
- array operations use MMX/SSE/SSE2, if available
- module profiling
- line profiling
- about 300 library functions (more or less usable)
- true-color (24 bit) direct graphics devices: X, WIN, PS, PDF, Z
- run-time performance: for many programs, FL is faster than IDL (eg. the empty loop is three times faster in FL :-)
Installation:
- create a directory (INSTDIR), where you want to install FL
- unpack the archive into this directory
- create an FL_DIR environment variable, which points to INSTDIR/fl/fl_0.61
- run FL_DIR/bin/fl
Enhancements:
- This release introduces Distributed FL, and can be started as a TCP/IP daemon (Linux only), waiting for requests from other hosts (masters) and working for them as a slave.