WebRTC Video Call API: The Definitive Guide

Published On May 7th, 2024 Engineering

In today’s digital era, real-time communication is the heart of every successful interaction happening around the globe. Be it live video calls explaining product launches or a group gala talk, the presence of WebRTC technology has made communication & collaboration seamlessly possible.

As a result of which, the technology has powered developers to build a highly powerful video chat app or simply integrate video calling capabilities using WebRTC video calling APIs.

So what is it, and how useful is WebRTC video call software in the communication sector, we will see below.

What is WebRTC?

WebRTC, or Web Real-Time Communication (give link to real-time communication) is a technology that facilitates real-time video and audio communication within the browsers, without the need for any plugins or software.

Plus, with the presence of WebRTC APIs, developers can seamlessly add group video calls, or create P2P communication between devices.

Now let us see a recent report that proves how beneficial this technology has been, WebRTC video call service is expected to reach USD 110.2 billion by 2032 from USD 6.2 billion in 2022.

Next up is,

WebRTC API: When it started and how does it work now?

Earlier in 2010, real-time communication systems were only available by additional software, plugins or by using Adobe flash. Later in 2013, a cross-browser video call was introduced where you can connect between Google Chrome and Firefox.

In 2014, a new trend developed as the first cross-border data transfer led to real-time communication through the client-side.

After all these developments, it is now known as the WebRTC peer-to-peer that we use in our everyday routine in all the available browsers such as Chrome, Firefox, Safari, iOS, Android, etc.

WebRTC video API is an HTML5 JavaScript specification that originates with a bunch of web APIs and communication protocols to launch an uninterrupted video/audio enabled communication between browsers. WebRTC Video calling APIs are more popular as the APIs are plugin free, involving no tiresome downloads and installations.

Businesses use the WebRTC-enabled chat application for instant messaging, video conferencing, click-to-calls and peer-to-peer streaming. Plus, when you build a WebRTC video conferencing or video calling app, it offers a unique set of features and innovations, making it widely embraced within the developer community.

Include origination here.

 
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Architecture and Functionality of WebRTC Video Chat App

Building a WebRTC group video call app or voice chat service enables users with mutual communication through browsers to capture, transmit and encode real-time streaming between two parties that consists of 3 HTML5 APIs.

  • Well, this is the beauty of WebRTC service. Along with this, it also does not require any additional software or hardware, the audio and video streaming can be done without the need of the intermediate web services.
  • Now, if you use WebRTC APIs, you can add group video calls, channels, meeting rooms, or any video calling feature that MirrorFly offers.

Now, let us see how WebRTC works?

How Does WebRTC work?

WebRTC is a P2P protocol (peer-to-peer) that allows only 2 users to connect in a single WebRTC connection. Let us see in detail how the protocol works.

  1. Signaling: Users exchange information with each other like IP address, session descriptions, and more using a signaling server.
  2. Peer connection: Post establishing a connection, users can send audio, video, and messages without a server.
  3. Media capture: When a user sends in a video, WebRTC video call API captures the required video from webcams and encodes using a codec. Similarly, the receiver decodes, and the process is called Media Rendering.
  4. NAT Traversal: In case of network issues, the WebRTC group video call APIs, use NAT mechanisms to overcome network lags.

So that was all.

Why WebRTC API for Video & Voice Call?

  1. Removes Noise: The ambient noise from an audio file can be removed by a WebRTC voice call; it is the same case for video calls too. 
  2. Compress Files: WebRTC can compress and decompress the audio or video by treating it with codec. 
  3. Transmits via Firewalls: WebRTC transmits to create interactive Connectivity Establishment (ICE) by routing from one peer to another via firewalls. 
  4. Data Encryption: WebRTC aids the user to manage the bandwidth while securing the user data with end-to-end encryption before transmitting the connections. 
  5. Peer-to-peer Communication: WebRTC is an open source project that constantly evolves and improves the peer-to-peer communication by simplifying it.
  6. Low bandwidth and Low latency: Embedded with audio-video communication, WebRTC helps the user to consume very less bandwidth and offers zero latency that is supported with all the major browsers and mobile devices.

Limitations in WebRTC and How to Overcome it?

  1. Scalability

As the WebRTC API integration was not designed with the attention to scalability, it requires the user’s participating browser to connect with one another through a peer connection.

To solve this, the scalability can be increased with a real-time streaming server if the WebRTC is transcoded into HLS for unlimited distribution. As a result, it will lead the video conferencing API integration to large scale broadcasting.

2. Broadcast Quality

To enable the real-time delivery, WebRTC sacrifices the bidirectional frames from the GOP (Group of Picture) structure which results in a negative impact on the quality.

It can be resolved by reducing the number of connections between each client after all the participants connect to a common streaming server. It will thus lead to a streaming of larger scale and thereby optimizing the quality as well.

How is MirrorFly the Best WebRTC Video Calling API Provider?

MirrorFly is one of the best WebRTC video call API providers to build all kinds of WebRTC applications, like voice apps, group video calling solutions, & real-time chats.

Plus, its in-app communication SDKs are every developer’s favorite because of their quick integration capabilities, scalability, control, 500+ customizable call & chat features, & twin communication model – SaaS & SaaP.

As we spoke of the two different models, let us see them in detail.

  1. SaaS – also known as the Pay-as-you-go model, allows developers to access features at a monthly subscription plan.

Its highlights include:

  • Secure Messaging
  • Unlimited calls
  • Topic-based chats
  • Plug-&-play UI kit

2. SaaP– also known as a self-hosted solution, allows developers to build highly customizable chat apps for a one-time license fee.

Its highlights include:

  • 100% customizable
  • White-labeling
  • Complete Ownership
  • On-prem/cloud hosting
  • Hire WebRTC developers

Therefore, whichever solution you opt for, you can give a crystal-clear video calling experience to users with our SDKs built with WebRTC technology.

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Frequently Asked Questions (FAQ)

How Does WebRTC video call work?

The WebRTC video call solution works by combining Javascript APIs, Media Stream APIs, and P2P communication protocols to establish audio and video connections between user devices over the internet.

What are the benefits of WebRTC video calling?

The benefits of WebRTC video calling solution include:

  • Quick and seamless integration
  • Cost-effectiveness
  • High scalability
  • Advanced security
  • Low latency
Is WebRTC an API?

Yes, WebRTC is a collection of interrelated APIs and protocols that allows developers to enable real-time communication features like audio & video across web browsers. These APIs include functions for establishing connections between devices, streaming media and interacting with devices like webcams and microphones.

What is WebRTC calling?

WebRTC calling refers to a feature with which users can make real-time audio and video calls over the internet. It allows peer-to-peer communication between browsers without the need for third-party plugins or software.

What is WebRTC video conferencing?

WebRTC Conferencing is a technology that connects multiple users across the same video or audio call. It facilitates group video conferencing and meetings in a web-based environment.

Can I use WebRTC for chat?

Yes, you can use a WebRTC chat to easily establish a peer-to-peer connection within your chat apps, without any plugins or downloads.

Alexander S

Alex Sam is a digital marketer by choice & profession. He munches on topics relating to technology, eCommerce, enterprise mobility, Cloud Solutions and Internet of Things. His other interests lies in SEO, Online Reputation Management and Google Analytics.

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