What is a video stream?

Streaming media refers to the technology and process of compressing a series of media data, sending data in segments on the Internet, and transmitting audio and video on the Internet for viewing. This technology enables data packets to be sent like water. If you don't use this technology, you must download the entire media file before using it.

Streaming media files are generally defined by bit hierarchy, so stream data packets do not have to be byte-aligned, although ordinary media files are packaged in this way. The three operating platforms of streaming media are provided by Microsoft, RealNetworks and Apple respectively.

There are two main schemes for transmitting multimedia information such as audio/video on the network: downloading and streaming. A/V files are generally large, so the required storage capacity is also large; At the same time, due to the limitation of network bandwidth, downloading often takes several minutes or even hours, so this processing method has great delay.

In the process of streaming, time-based media such as sound, video or animation are continuously transmitted from the audio-video server to the user's computer in real time, so that the user can watch it only after a few seconds or more startup delay.

Extended data:

Since the 1990s, the rapid development of Internet communication technology has profoundly affected people's daily life and work style, but also brought great challenges to the traditional education and teaching model. The development of online teaching and online courses has become the central topic discussed by colleagues in the field of educational technology and the new trend of educational reform and development in the 2/kloc-0 century.

In today's world, with the rapid development of science and technology, knowledge economy has emerged. Knowledge economy calls for innovative education, which requires us to change the traditional teaching mode, cultivate students' innovative consciousness and creative thinking ability, and cultivate innovative talents.

Streaming media technology has played an important role in Internet media communication, which has facilitated people's information and emotional exchange around the world. Among them, video on demand, distance education, video conference, live Internet broadcast, online news release and online advertising are more widely used than ever before.

Baidu encyclopedia-streaming media

Baidu Encyclopedia-Streaming Media Technology