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@rphk/wide-webrtc

v2.0.0

Published

WebRTC for React Native

Downloads

7

Readme

-rphk-react-native-webrtc

Forked from react-native-webrtc with minimal changes to use the ultra wide camera in ios instead of the standard wide. This change is hard coded, so it renders the standard wide unusable. Todo: do it properly.

This is based on version 1.100.1 which fits expo sdk 46.

npm version npm downloads

A WebRTC module for React Native.

  • Support iOS / macOS / Android.
  • Support Video / Audio / Data Channels.

🚨 Expo: This package is not available in the Expo Go app. Learn how you can use this package in Custom Dev Clients via the out-of-tree Expo Config Plugin.

Community

Everyone is welcome to our Discourse community to discuss any React Native and WebRTC related topics.

WebRTC Revision

  • Currently used revision: M100
  • Supported architectures
    • Android: armeabi-v7a, arm64-v8a, x86, x86_64
    • iOS: arm64, x86_64 (for bitcode support, run this script)
    • macOS: x86_64

Installation

Usage

Now, you can use WebRTC like in browser. In your index.ios.js/index.android.js, you can require WebRTC to import RTCPeerConnection, RTCSessionDescription, etc.

import {
    RTCPeerConnection,
    RTCIceCandidate,
    RTCSessionDescription,
    RTCView,
    MediaStream,
    MediaStreamTrack,
    mediaDevices,
    registerGlobals
} from 'react-native-webrtc';

Anything about using RTCPeerConnection, RTCSessionDescription and RTCIceCandidate is like browser. Support most WebRTC APIs, please see the Document.

const configuration = { iceServers: [{ url: 'stun:stun.l.google.com:19302' }] };
const pc = new RTCPeerConnection(configuration);

let isFront = true;
mediaDevices.enumerateDevices().then(sourceInfos => {
    console.log(sourceInfos);
    let videoSourceId;
    for (let i = 0; i < sourceInfos.length; i++) {
        const sourceInfo = sourceInfos[i];
        if (sourceInfo.kind == 'videoinput' && sourceInfo.facing == (isFront ? 'front' : 'environment')) {
            videoSourceId = sourceInfo.deviceId;
        }
    }
    mediaDevices
        .getUserMedia({
            audio: true,
            video: {
                width: 640,
                height: 480,
                frameRate: 30,
                facingMode: isFront ? 'user' : 'environment',
                deviceId: videoSourceId
            }
        })
        .then(stream => {
            // Got stream!
        })
        .catch(error => {
            // Log error
        });
});

pc.createOffer().then(desc => {
    pc.setLocalDescription(desc).then(() => {
        // Send pc.localDescription to peer
    });
});

pc.onicecandidate = function (event) {
    // send event.candidate to peer
};

// also support setRemoteDescription, createAnswer, addIceCandidate, onnegotiationneeded, oniceconnectionstatechange, onsignalingstatechange, onaddstream

RTCView

However, render video stream should be used by React way.

Rendering RTCView.

<RTCView streamURL={this.state.stream.toURL()} />

| Name | Type | Default | Description | | --------- | ------- | --------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | | mirror | boolean | false | Indicates whether the video specified by "streamURL" should be mirrored during rendering. Commonly, applications choose to mirror theuser-facing camera. | | objectFit | string | 'contain' | Can be contain or cover | | streamURL | string | '' | This is mandatory | | zOrder | number | 0 | Similarly to zIndex |

Custom APIs

registerGlobals()

By calling this method the JavaScript global namespace gets "polluted" with the following additions:

  • navigator.mediaDevices.getUserMedia()
  • navigator.mediaDevices.getDisplayMedia()
  • navigator.mediaDevices.enumerateDevices()
  • window.RTCPeerConnection
  • window.RTCIceCandidate
  • window.RTCSessionDescription
  • window.MediaStream
  • window.MediaStreamTrack

This is useful to make existing WebRTC JavaScript libraries (that expect those globals to exist) work with react-native-webrtc.

MediaStreamTrack.prototype._switchCamera()

This function allows to switch the front / back cameras in a video track on the fly, without the need for adding / removing tracks or renegotiating.

VideoTrack.enabled

Starting with version 1.67, when setting a local video track's enabled state to false, the camera will be closed, but the track will remain alive. Setting it back to true will re-enable the camera.

Related projects

The react-native-webrtc organization provides a number of packages which are useful when developing Real Time Communications applications.

The react-native-webrtc-web-shim project provides a shim for react-native-web support, allowing you to use (almost) the same code in react-native-web as in react-native.

Acknowledgements

Thanks to all contributors for helping with the project!

Special thanks to Wan Huang Yang for creating the first version of this package.