No matter one-to-many or one-to-one live broadcasting, streaming media technology is indispensable. It can be said that the streaming media architecture is the core architecture of any live broadcasting system, without which no so-called “live broadcasting” process can be realized. So what is streaming? In the process of building network video live broadcasting system, how to realize streaming media architecture? Next xiaobian will answer them one by one.
What is streaming media?
As for its implementation process, the popular point is that the video producer or operator sends the “program” (video) as a packet and transmits it to the network. After the receiver (the user) unzips the data through the decompression device, the ‘program’ (video) is displayed as it was before it was sent. The whole process is called “streaming” because it looks like data is packaged and sent over the Internet like water.
Second, the implementation of video streaming media architecture
After having a general understanding of convection media, let’s have a look at the architecture of streaming media in network video live broadcasting system. Let’s first put the figure:
1, AVSDK
As we all know, an SDK is a specific software package or plug-in package that complements and extends the functionality of an existing carrier. In the process of live broadcast, AVSDK is a collection of plug-ins for centralized processing of audio and video, including a series of functions such as camera collection, coding, decoding, beautifying, beautifying and so on. It also has an internal architecture. For different platforms, the implementation of internal functions can be shown in the following figure:
UDP is also known as the User Datagram Protocol. It is a fast transmission Protocol for sending data packets. Presentation in streaming media architecture is the delivery of processed audio and video data to the next processing module. Or return incomplete data to the previous module.
3. Bypass recording
Bypass after recording is to deal with a copy of the video information of mixed flow record and handle, and push the mixed flow of information flow to the cloud server process, because of the mixed flow after the audio and video data flow and the initial flow of audio and video information in fact is not the same way, but in the other parallel along the way, so called the bypass, which is not the main road.
4, the CDN
CDN is content distribution network, its key technology is content storage and distribution technology. The acceleration function is mainly used in the network video live broadcast system. I believe that many investors in the live broadcast industry have more contact with this area, so I will not go into details.
The above is the realization of streaming media architecture in the construction process of network video live broadcasting system. If you have any questions about this, please leave a message to the editor.