When we view videos online, we sometimes come across a term called VOD. For VOD, many friends don’t know what it is, so what does VOD mean? What is the VOD system? Don’t worry, below Let me introduce it to you in detail.
VOD (Video On Demand) is actually the abbreviation of video on demand technology, also known as interactive TV on demand system. Video on demand is a product of the development of computer technology, network technology and multimedia technology, and is a brand-new information service.
It gets rid of the shackles of traditional TV that are limited by time and space, and solves the problem of watching whatever program you want, and watching it whenever you want. Cable TV video-on-demand refers to the business activity of using the cable television network and using multimedia technology to integrate sound, images, graphics, text, data, etc., to broadcast the designated audio-visual programs to specific users. Including pay-per-view, carousel, on-demand real-time on-demand and other service forms.
VOD can not only provide end users with a variety of media information flow, expand people's information channels, and enrich people's spiritual life, but also in the fields of entertainment, staff training, long-distance market research, advertising business in hospitals, hotels, aircraft and other places It will gradually be flooded with new applications of VOD technology. At present, according to different functional requirements and application scenarios, there are mainly three VOD systems: NVOD, TVOD, and IVOD.
NVOD (Near video on demand), called Near Video on Demand. The way of this on-demand TV is: multiple video streams start to send the same content at a certain interval in turn. For example, twelve video streams start one every ten minutes sending the same two-hour TV program. If users want to watch this TV program, they may have to wait, but it will not exceed ten minutes, and they will choose a starting point of time closest to them to watch it. In this way, one video stream may be shared by many users.
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