What is streaming TV?

Streaming media refers to a continuous audio/video data stream that is transmitted and played in time sequence on the data network. In the past, when people watched movies or listened to music on the Internet, they had to download the whole video file and store it on their local computer before they could watch it. Different from the traditional playing mode, streaming media does not download the whole file before playing, but only caches part of the content, so that streaming media data can be played while transmitting, saving the waiting time and storage space for downloading. Streaming media data stream has three characteristics: continuous, real-time and timing, that is, its data stream has strict time sequence relationship. In China's 863 high-tech research plan "High-performance information demonstration network 3Tnet", it is clearly proposed to start with typical services such as broadband streaming media and build a high-performance, wide-area (metropolitan) broadband demonstration and verification network 3 Tnet that can adapt to real-time transmission of media streams such as Internet TV. Besides broadband network, streaming media technology can also be widely used in other networks. For example, wireless streaming media transmission is one of the main applications of 3G network. In NGN network, streaming media also plays an important role. Streaming media application types: Streaming media applications can be roughly divided into many types according to transmission mode, real-time and interactivity.

According to the above classification, the common applications of streaming media mainly include: video on demand (VOD), video broadcasting, video surveillance, video conferencing, distance education, interactive games and so on. In a word, there are many applications based on streaming media, and they are developing rapidly. Rich streaming media applications are very attractive to users. After solving the key technical problems that restrict streaming media, it can be expected that streaming media application will inevitably become the mainstream application of the future network.