WebRTC Series - Network Bandwidth Estimation and Bit Rate Estimation (1)

I wrote an article on WebRTC bandwidth evaluation before , WebRTC series -- bandwidth estimation parameters and limiting encoder encoding rate process . This article mainly introduces the impact of setting parameters on the WebRTC bandwidth evaluation interface and the results of bandwidth evaluation. The impact of the code rate of the decoder; start with this article, and then focus on analyzing the key congestion control and bandwidth evaluation in the network module in WebRTC;
webrtc version: M76

1. Some basic concepts

1.1 Protocol selection

Whether it is the OSI seven-layer model or the TCP/IP four-layer model, there are two main protocols in the transport layer: TCP , UDP ; these two protocols