SIMD-accelerated libjpeg-compatible JPEG codec library
libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression on x86, x86-64, ARM, and PowerPC systems. On such systems, libjpeg-turbo is generally 2-6x as fast as libjpeg, all else being equal. On other types of systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by virtue of its highly-optimized Huffman coding routines. In many cases, the performance of libjpeg-turbo rivals that of proprietary high-speed JPEG codecs. libjpeg-turbo implements both the traditional libjpeg API as well as the less powerful but more straightforward TurboJPEG API. libjpeg-turbo also features colorspace extensions that allow it to compress from/decompress to 32-bit and big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java interface.
A cross-platform library that gives apps easy access to USB devices
Library to enable user space application programs to communicate with USB devices
A multimedia framework based on Qt and FFmpeg
QtAV is a cross-platform and high performance multimedia playback framework based on Qt and FFmpeg. Features: timeline preview, gpu decoding etc
A project that has moved to GitHub
GLFW is an Open Source, multi-platform library for creating windows with OpenGL contexts and receiving input and events. It is easy to integrate into existing applications and does not lay claim to the main loop. GLFW has moved to GitHub: https://github.com/glfw
A C# interface for TWAIN
[Important] The project moved to GitHub. Please use the following GitHub project page from now on: https://github.com/twain/twain-cs A C# interface for the TWAIN image capture API, that also includes a toolkit layer, a diagnostic application and a sample application.
Blister is an extremely fast, scalable, lightweight, cross-platform C++ library and cmdline tool set for building async I/O servers and clients. It includes optimized logging, configuration, networking, process control, HTTP and SMTP APIs
Extended C Library
Why Is libxc needed? There doesn't exist a library for ANSI C99 for common data containers, such as vectors, trees, etc. There also also doesn't exist a library for common functionality, such as error reporting/logging, string functions, configuration management (reading config files), etc... The programmer working in C doesn't have anything analogous to the Boost C++ library. The extended C library is intended to make some headway into providing this functionality. To ensure unrestricted usage the libxc project is provided under the very permissive BSD license. If you need a different license then please send me a request (lelanthran at gmail) and I'll do my best to satisfy your request. What's completed? As of writing, the following libraries have been written and tested: 1. Memory accounting/tracking 2. String operations 3. Vectors 4. Trees 5. Dictionary arrays 6. Configuration management See the wiki page for more information
a CLI generator and and SW library
CLIck allows you to create flat or hierarchical CLI (command line interfaces) in an extremely easy and quick way, supporting very popular features like history with command recalling, context-based auto-completion, tab-based command list, automatic command-line help, special characters, automatic structure builder, and much more. CLIck is written in ANSI C and tested on C and C++ applications on several architectures. It doesn't depend on any external library and uses only a very small subset of POSIX APIs. Despite the project name, you won't need your mouse at all!
Moved to GITORIOUS: http://gitorious.org/tinythread TinyThread++ is a minimalist, portable threading library for C++. It is modeled after the current C++0x standard (draft), implementing a subset thereof, and acts as a simple replacement library for compilers that lack support for C++0x.
C#/Java/C++ implementation of the Styx (9P2000) protocol for distributed systems. This protocol used by Inferno and Plan9 OSes.