The video server ( video server in English) is a storage system which, in an application Vidéo, offers audio-visual resources (animated images of the video and audio, sounds) to a computer network customers.
One calls upon the video servers for the operations of Radiodiffusion or broadcast and of Postproduction.
Basic
The video server is appeared as a peripheral of a computer, which transforms, or converts, one, sometimes up to 4 or 8 analogical sources, signal/video signals STAKE (example: Camera, Video camera) in numerical flow MPEG-2 or MPEG-4 (according to the manufacturer) via the output port RJ45. Its basic application is exerted in the field of the Webcam S and the video cameras dedicated to the video surveillance in general. Certain video servers are also and sometimes called analog-to-digital Converter. The standard and the flow of exit can be only limited to USB 1 or 2. A mono audio way (CINCH) is generally at least available.
Evolved/moved
There exists a variation general public called Video server TV which allows router the compressed signal, either on fabric Internet, or quite simply in telegraphic lan (LAN) or even wireless telegraphies 2,4 GHz (WLAN) in the house or the neighborhoods, via the process Wifi incorporated, a little with the manner of a transmitting .
It treats now, either an analogical signal or numerical, of an unspecified source, such as for example a Terminal or Adaptateur TNT (DVB-T), a terminal or satellite Démodulateur (DVB-S), a reader DVD a video tape recorder, a video camera, etc the entries are done classically by CINCH or Peritel. The exit allows higher flows, since RJ45 (Ethernet).
In short, via this last type of domestic waiter, it is from now on possible to follow on line or in recorded moments before, in compression MPEG-4, a chain preset TV (impossible to change it remotely since it is imperatively necessary to operate the ordering of the demodulator or terminal), beyond its zone of hertzian reception normal, TNT or satellite, provided of course to have a downward connection ADSL (entering) to sufficient band-width.
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