Introduction
If you are in Streaming Media Industry then definitely you have haired the term WebRTC. It is a project supported by Opera, Mozilla and Google. So it does support chrome, mozilla and opera browsers. Android and iOS are the two supportive platforms of it.
Now we will discuss about it, its working with diagram and features below in brief.
What Is WebRTC ?
WebRTC is acronym for Web Real Time Communication. WebRTC is open source software easily available free to use.
In other words,
WebRTC is a technology used to establish a communication between two web browsers and Mobile Apps. So that both browsers can transfer the Data, Voice and Video. WebRTC enable us to do audio video calls between two different devices on web browsers without use of any internal and external software.
So you need not to install any additional software to do the video calling. Like we are using Skype software to do the video calling WebRTC removes the need of these software applications.
WebRTC Communication is based on APIs. It is having various APIs. These APIs are used for development of applications for software developers. These software enable us to do the video audio calling and data sharing between two different devices.
Google Chrome, Mozilla Firefox and Opera are the supportive browsers of it. While in case of Internet Explorer & Safari you need to install additional plugin to enable WebRTC in these browsers.
WebRTC uses HTML 5 and Various Protocols for communication.
How Does WebRTC Work ?
As show above in the figure there are two Clients named as Client 1 and Client 2 with a Server. Now suppose Client 1 want to establish a connection with Client 2 for communication.
Then First Client 1 will request for communication to server. In this request Client 1 will send his information to server. Now server will forward his request to Client 2 with Client 1’s information.
Now Client 2 respond for the request with its information to the Server. Now server will forward Client 2’s information to Client 1. At this point Client 1 is having Client 2’s information and Client 2 is having Client 1’s information.
So both the Clients now establish a connection. Then they will start communicating with each other. This communication can be Audio Communication, Video Communication and Data Communication as well. This communication is secure communication because it uses the encryption for sending and receiving of data.
It is easy to use because if you want to do video calling by using WebRTC Technology then you need to just write small code of Java Script and HTML. It uses UDP protocol for fast communication. Although UDP is fast but it doesn’t provide acknowledgement.
Types Of APIs Used In WebRTC
There are mainly three APIs used in this mentioned below,
(1) GetUserMedia API
(2) PeerConnection API
(3) DataChannel API
GetUserMedia API is used to get the access of Mic, Cam and display of other device.
PeerConnection API is used to send the media on the network with encoding and decoding tasks of media. It provides security. It does management of bandwidth and signal processing.
DataChannel API is used for data communication between two browsers. It provides low latency.
Features Of WebRTC
(1) No need to have additional software for communication weather the software is internal or external.
(2) High Quality video audio Communication.
(3) Low Latency
(4) Lowe Cost Technology
(5) It is secure communication because it uses Encryption Technique.
(6) Easy To Use.
Conclusion
WebRTC is a technology of secure and fast communication between two different devices, no matter what Operating System they are using. Where communication can be Data, Video and Audio. It is used to eliminate the need of additional software of communication.
This technology is used in various solutions.
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reference : webrtc
