v4l-utils is a collection of various video4linux (V4L) and DVB utilities. libv4l is an accompanying collection of libraries that adds a thin abstraction layer on top of video4linux2 (V4L2) devices. The purpose of this layer is to make it easy for application writers to support a wide variety of devices without having to write separate code for different devices in the same class. It consists of 3 different libraries. libv4lconvert offers functions to convert from any (known) pixel format to V4l2_PIX_FMT_BGR24 or V4l2_PIX_FMT_YUV420. libv4l1 offers the (deprecated) v4l1 API on top of v4l2 devices, independent of the drivers for those devices supporting v4l1 compatibility (which many v4l2 drivers do not). libv4l2 offers the v4l2 API on top of v4l2 devices, while adding support for the application transparent libv4lconvert conversion where necessary.
Video Contact Sheet *NIX creates a contact sheet (preview) from videos by taking still captures distributed over the length of the video. The output image contains useful information on the video such as codecs, file size, screen size, frame rate, and length. It requires MPlayer or FFmpeg and ImageMagick. It is confirmed to work on Linux and FreeBSD, and possibly other POSIX/UNIX systems.
The Zapping VBI (zvbi) library provides routines to read from raw Vertical Blanking Interval capture devices, to demodulate raw to sliced VBI data, and to interpret the data of several popular services. Basically, it offers all the functionality needed by a VBI application except for the UI.
OGMRip is an application and a set of libraries for ripping and encoding DVDs into AVI/OGM files using a wide variety of codecs. It relies on mplayer, mencoder, ogmtools, oggenc, and lame to perform its tasks. The GUI features a clean HIG-compliant GNOME 2 interface and tries to minimize (as much as possible) esoteric settings.
libCVD is a very portable and high performance C++ library for computer vision, image, and video processing. The emphasis is on providing simple and efficient image and video handling and high quality implementations of common low-level image processing function. The library is designed in a loosely-coupled manner, so that parts can be used easily in isolation if the whole library is not required. The video grabbing module provides a simple, uniform interface for videos from a variety of sources (live and recorded) and allows easy access to the raw pixel data. Likewise, the image loading/saving module provides simple, uniform interfaces for loading and saving images from bitmaps to 64 bit per channel RGBA images. The image processing routines can be applied easily to images and video, and accelerated versions exist for platforms supporting SSE.
Libquicktime is based on the quicktime4linux library with several enhancements. All 3rd-party libraries were removed from the sourcetree. Instead, the systemwide installed libraries are detected by the configure script. All original codecs were moved into dynamically loadable modules, and new codecs are in development. Special API extensions allow access to the codec registry and more convenient processing of audio and video data. Libquicktime comes with original utility programs and additional tools, like a command line player and a GTK configuration utility that can configure the parameters of all installed codecs. The configuration is stored in the home directory, and can be used by all libquicktime applications.
The Chemistry Development Kit (CDK) is a library of Java classes for chemo-, bioinformatics, computational chemistry, and chemometrics. It provides important algorithms like substructure search, SMILES, Gasteiger charges, QSAR descriptor calculation, 3D structure generation, 2D layout and rendering, many IO formats, atom typing, and more.
libplayer is a multimedia A/V abstraction layer API. Its goal is to interact with Enna Media Center. libplayer provides a generic A/V API that relies on various multimedia players for Linux systems. It currently supports MPlayer, xine, VLC, and GStreamer only. Its main goal is to provide a unique API that player frontends can use to control any kind of multimedia player underneath. For example, it provides a library to easily control MPlayer's slave-mode.