The basic concept of how Tencent cloud mlvb technology can highlight the siege in mobile live broadcasting services

   Today, Zhimi technology will explain the basic concepts of live video for the engineers who have just entered the development of live video program

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• RTMP

The full name is Real-Time Messaging Protocol （ Real time messaging protocol ）. By the first Macromedia For the Internet in Flash Streaming audio between the player and a server 、 A proprietary protocol developed for video and data . And then he was killed Adobe Systems Acquisition . Simply speaking , The data transmission of live video is based on RTMP This Agreement .

• Push flow / Pull flow

Literally , The streaming here is the streaming media 、 Or video streaming .

Therefore, streaming means that the anchor in the live broadcast pushes the local audio and video sources to the Tencent cloud server behind the live broadcast .

Streaming means that the live audience obtains the first-class media from the ECS , Live broadcast . After the live streaming has been realized , The process of pulling and playing the video source and audio source in Tencent video cloud server with the specified address . Its video source is generated in real time , It's only meaningful if someone pushes the stream live , Once the anchor stops , live broadcast URL It's not working . And because it is live broadcast , So the player doesn't have a progress bar when broadcasting live video .

• Push flow / Pull flow domain name

As there are regulatory systems for website and video content provision in China , Therefore, both streaming and streaming of live broadcast must be registered and filed under the real name system . Push the stream in the background 、 After the domain name configuration of streaming is completed , Tencent cloud MLVB The service will generate the corresponding streaming address .

• UserSig

UserSig（ User signature ） It is a security signature designed by Tencent cloud , Used for login authentication of a user , Confirm whether the user is real , Prevent malicious attackers from stealing your cloud service usage rights .

• License

Now based on Tencent cloud MLVB Live video SDK Both need to pay for traffic packages or advanced functions . And the most basic wisdom + Tencent cloud mobile live broadcast MLVB Can be used in the DEMO The plug-in can quickly build a mobile live broadcast DEMO APP, To test it .

The details page of the plug-in ：

Tencent cloud mobile live broadcast - Live broadcast with goods, even wheat and PK- Zhimi Technology Tencent cloud mobile live broadcast (MLVB) Support the anchor to start broadcasting , Audience viewing function , It also supports live broadcast and delivery , Anchor audience Lian Mai , Anchor room PK War and other functions .https://ext.dcloud.net.cn/plugin?id=4729

• SDKAppID

SDKAppID It is the user who is implementing a small live broadcast App Information to be filled in , It is mainly created when the chat room function is implemented IM Application generated , It is the background of Tencent cloud that is used to distinguish different IM Unique identification of the application . And Zhimi + Tencent cloud mobile live broadcast plug-in MLVB Has been integrated in IM application .

• Little live

Little live App It is an open source and complete online live broadcast solution , It is based on cloud live broadcast service 、 Instant messaging （IM） And object storage services （COS） structure , And use ECs （CVM） Provide simple background services , You can log in 、 register 、 premiere 、 Room list 、 Lianmai interaction 、 Text interaction and bullet screen message . 

• Live broadcast

Live broadcast （Live Event Broadcasting,LEB） It is an extension of the standard live broadcast in the ultra-low delay scenario , Lower latency than traditional live broadcast protocols , Provide the audience with a millisecond level of the ultimate live viewing experience . Higher performance requirements for specific scenarios , For example, online education 、 Live sports events 、 Online answers, etc .