Merci à Jacques Urbanska (le créateur).

http://www.arts-numeriques.info/portail/
Pure Data (souvent abrégé pd) est un logiciel de création multimédia interactive couramment utilisé dans les domaines artistiques, scientifiques et pédagogiques. Sa popularité réside notamment dans sa facilité d'utilisation. Plutôt qu'un langage de programmation textuel, Pure Data propose un environnement de programmation graphique dans laquelle l'utilisateur est invité à manipuler des icônes représentants des fonctionnalités et à les brancher ensemble.
You may think of video files as “AVI files” or “MP4 files.” In reality, “AVI” and “MP4″ are just container formats. Just like a ZIP file can contain any sort of file within it, video container formats only define how to store things within them, not whatkinds of data are stored. (It’s a little more complicated than that, because not all video streams are compatible with all container formats, but never mind that for now.)
A video file usually contains multiple tracks — a video track (without audio), plus one or more audio tracks (without video). Tracks are usually interrelated. An audio track contains markers within it to help synchronize the audio with the video. Individual tracks can have metadata, such as the aspect ratio of a video track, or the language of an audio track. Containers can also have metadata, such as the title of the video itself, cover art for the video, episode numbers (for television shows), and so on.
There are lots of video container formats. Some of the most popular include
.mp4
or .m4v
extension. The MPEG 4 container is based on Apple’s older QuickTime container (.mov
). Movie trailers on Apple’s website still use the older QuickTime container, but movies that you rent from iTunes are delivered in an MPEG 4 container..flv
extension. Flash Video is, unsurprisingly, used by Adobe Flash. Prior to Flash 9.0.60.184 (a.k.a. Flash Player 9 Update 3), this was the only container format that Flash supported. More recent versions of Flash also support the MPEG 4 container..ogv
extension. Ogg is an open standard, open source–friendly, and unencumbered by any known patents. Firefox 3.5, Chrome 4, and Opera 10.5 support — natively, without platform-specific plugins — the Ogg container format, Ogg video (called “Theora”), and Ogg audio (called “Vorbis”). On the desktop, Ogg is supported out-of-the-box by all major Linux distributions, and you can use it on Mac and Windows by installing the QuickTime components orDirectShow filters, respectively. It is also playable with the excellent VLC on all platforms..avi
extension. The AVI container format was invented by Microsoft in a simpler time, when the fact that computers could play video at all was considered pretty amazing. It does not officially support features of more recent container formats like embedded metadata. It does not even officially support most of the modern video and audio codecs in use today. Over time, companies have tried to extend it in generally incompatible ways to support this or that, and it is still the default container format for popular encoders such as MEncoder.Testing of Tvor - the intelligent lighting creature from Živé věci / Living Things on Vimeo.
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