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[![License badge](https://img.shields.io/badge/license-Apache2-orange.svg)](http://www.apache.org/licenses/LICENSE-2.0)
[![OpenVidu Tests](https://github.com/OpenVidu/openvidu/actions/workflows/openvidu-ce-test.yml/badge.svg)](https://github.com/OpenVidu/openvidu/actions/workflows/openvidu-ce-test.yml)
[![Documentation Status](https://readthedocs.org/projects/openvidu/badge/?version=stable)](https://docs.openvidu.io/en/stable/?badge=stable)
[![Docker badge](https://img.shields.io/docker/pulls/openvidu/openvidu-server-kms.svg)](https://hub.docker.com/r/openvidu/openvidu-server-kms)
[![Support badge](https://img.shields.io/badge/support-sof-yellowgreen.svg)](https://openvidu.discourse.group/)
[![][OpenViduLogo]](http://openvidu.io)
openvidu-speech-to-text
===
Visit [docs.openvidu.io/en/stable/advanced-features/speech-to-text](http://docs.openvidu.io/en/stable/advanced-features/speech-to-text/)
[OpenViduLogo]: https://secure.gravatar.com/avatar/5daba1d43042f2e4e85849733c8e5702?s=120

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FROM node:16-alpine3.16
# Copy openvidu-basic-node
COPY ./openvidu-basic-node /opt/openvidu-basic-node
# Install openvidu-basic-node dependencies
RUN npm --prefix /opt/openvidu-basic-node install
# Copy static files to openvidu-basic-node
RUN mkdir -p /opt/openvidu-basic-node/public
COPY ./web /opt/openvidu-basic-node/public
WORKDIR /opt/openvidu-basic-node
COPY docker/entrypoint.sh .
ENTRYPOINT [ "./entrypoint.sh" ]

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#!/bin/bash
if [ $# -eq 0 ]; then
echo "No version argument provided. Usage: \"./create_image.sh <IMAGE_NAME>\""
exit 1
fi
pushd ../
cp -r ../openvidu-basic-node .
trap 'rm -rf ./openvidu-basic-node' ERR
docker build --pull --no-cache --rm=true -f docker/Dockerfile -t "$1" .
rm -rf ./openvidu-basic-node

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version: '3.1'
services:
app:
image: openvidu/openvidu-speech-to-text-demo:2.22.0
restart: on-failure
network_mode: host
environment:
- OPENVIDU_URL=https://${DOMAIN_OR_PUBLIC_IP:-}:${HTTPS_PORT:-443}
- OPENVIDU_SECRET=${OPENVIDU_SECRET}

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#!/bin/sh
if [ -n "${OPENVIDU_APPLICATION_SERVER_URL}" ]; then
# Replace OPENVIDU_APPLICATION_SERVER_URL at frontend app
sed -i \
"s|var APPLICATION_SERVER_URL = \"http://localhost:5000/\";|var APPLICATION_SERVER_URL = \"${OPENVIDU_APPLICATION_SERVER_URL}/\";|" \
public/app.js
fi
exec node index.js "$*"

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events {
worker_connections 512;
}
http {
upstream openvidu-deployment {
server host.docker.internal:4443;
}
upstream server-application {
server host.docker.internal:5000;
}
upstream client-application {
server host.docker.internal:8080;
}
server {
listen 443 ssl;
ssl_certificate /etc/nginx/certs/cert.pem;
ssl_certificate_key /etc/nginx/certs/key.pem;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Proto https;
proxy_headers_hash_bucket_size 512;
proxy_redirect off;
# Websockets
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
# OpenVidu deployment API
location /openvidu/api {
proxy_pass http://openvidu-deployment;
}
# OpenVidu WebSocket
location ~ /openvidu$ {
proxy_pass http://openvidu-deployment;
}
# Server application requests
location /api/ {
proxy_pass http://server-application;
}
# Client application requests
location / {
proxy_pass http://client-application;
}
}
}

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var OV;
var session;
/* OPENVIDU METHODS */
function joinSession() {
var mySessionId = document.getElementById("sessionId").value;
var myUserName = document.getElementById("userName").value;
// --- 1) Get an OpenVidu object ---
OV = new OpenVidu();
// --- 2) Init a session ---
session = OV.initSession();
// --- 3) Specify the actions when events take place in the session ---
// On every new Stream received...
session.on('streamCreated', event => {
// Subscribe to the Stream to receive it. HTML video will be appended to element with 'video-container' id
var subscriber = session.subscribe(event.stream, 'video-container');
// When the HTML video has been appended to DOM...
subscriber.on('videoElementCreated', event => {
// Add a new <p> element for the user's nickname just below its video
appendUserData(event.element, subscriber.stream.connection);
// Add a new <button> element for the user's captions
appendCaptionsButton(event.element, subscriber.stream);
});
});
// On every Stream destroyed...
session.on('streamDestroyed', event => {
// Delete the HTML element with the user's nickname. HTML videos are automatically removed from DOM
removeUserData(event.stream.connection);
});
// On every asynchronous exception...
session.on('exception', (exception) => {
console.warn(exception);
});
// Listen the speechToText events for showing them on page view
session.on('speechToTextMessage', (event) => {
console.log(event);
var captionContainer = document.getElementById('captions-container');
var caption = document.createElement('div');
var userData = JSON.parse(event.connection.data).clientData;
caption.className = `caption-${event.reason}`;
// caption.id = "caption-" + nodeId;
caption.innerHTML = `<p>${userData}</p><p>${event.text}</p>`;
captionContainer.appendChild(caption);
captionContainer.scrollTop = captionContainer.scrollHeight;
});
// --- 4) Connect to the session with a valid user token ---
// Get a token from the OpenVidu deployment
getToken(mySessionId).then(token => {
// First param is the token got from the OpenVidu deployment. Second param can be retrieved by every user on event
// 'streamCreated' (property Stream.connection.data), and will be appended to DOM as the user's nickname
session.connect(token, { clientData: myUserName })
.then(() => {
// --- 5) Set page layout for active call ---
document.getElementById('session-title').innerText = mySessionId;
document.getElementById('join').style.display = 'none';
document.getElementById('session').style.display = 'block';
document.getElementById('captions-container').style.display = 'block';
// --- 6) Get your own camera stream with the desired properties ---
var publisher = OV.initPublisher('video-container', {
audioSource: undefined, // The source of audio. If undefined default microphone
videoSource: undefined, // The source of video. If undefined default webcam
publishAudio: true, // Whether you want to start publishing with your audio unmuted or not
publishVideo: true, // Whether you want to start publishing with your video enabled or not
resolution: '640x480', // The resolution of your video
frameRate: 30, // The frame rate of your video
insertMode: 'APPEND', // How the video is inserted in the target element 'video-container'
mirror: false // Whether to mirror your local video or not
});
// --- 7) Specify the actions when events take place in our publisher ---
// When our HTML video has been added to DOM...
publisher.on('videoElementCreated', function (event) {
initMainVideo(event.element, myUserName);
appendUserData(event.element, myUserName);
appendCaptionsButton(event.element, publisher.stream);
event.element['muted'] = true;
});
// --- 8) Publish your stream ---
session.publish(publisher);
})
.catch(error => {
console.log('There was an error connecting to the session:', error.code, error.message);
});
});
}
function leaveSession() {
// --- 9) Leave the session by calling 'disconnect' method over the Session object ---
session.disconnect();
// Removing all HTML elements with user's nicknames.
// HTML videos are automatically removed when leaving a Session
removeAllUserData();
// Back to 'Join session' page
document.getElementById('join').style.display = 'block';
document.getElementById('session').style.display = 'none';
document.getElementById('captions-container').style.display = 'none';
}
window.onbeforeunload = function () {
if (session) session.disconnect();
};
/* APPLICATION SPECIFIC METHODS */
window.addEventListener('load', function () {
generateParticipantInfo();
});
function generateParticipantInfo() {
document.getElementById("sessionId").value = "SessionA";
document.getElementById("userName").value = "Participant" + Math.floor(Math.random() * 100);
}
function appendUserData(videoElement, connection) {
var userData;
var nodeId;
if (typeof connection === "string") {
userData = connection;
nodeId = connection;
} else {
userData = JSON.parse(connection.data).clientData;
nodeId = connection.connectionId;
}
var dataNode = document.createElement('div');
dataNode.className = "data-node";
dataNode.id = "data-" + nodeId;
dataNode.innerHTML = "<p>" + userData + "</p>";
videoElement.parentNode.insertBefore(dataNode, videoElement.nextSibling);
addClickListener(videoElement, userData);
}
function appendCaptionsButton(videoElement, stream) {
var captionsButton = createCaptionsButton();
var lastChild = videoElement.nextElementSibling;
lastChild.insertBefore(captionsButton, lastChild.nextSibling);
captionsButton.onmouseup = async (ev) => {
var text = ev.composedPath()[0].innerText;
if(text === 'Enable captions') {
ev.composedPath()[0].innerText = 'Disable captions';
await this.session.subscribeToSpeechToText(stream, 'en-US');
} else {
ev.composedPath()[0].innerText = 'Enable captions';
await this.session.unsubscribeFromSpeechToText(stream);
}
};
}
function createCaptionsButton() {
var button = document.createElement('button');
button.className = 'caption-btn';
button.innerText = 'Enable captions';
return button;
}
function removeUserData(connection) {
var dataNode = document.getElementById("data-" + connection.connectionId);
dataNode.parentNode.removeChild(dataNode);
}
function removeAllUserData() {
var nicknameElements = document.getElementsByClassName('data-node');
while (nicknameElements[0]) {
nicknameElements[0].parentNode.removeChild(nicknameElements[0]);
}
}
function addClickListener(videoElement, userData) {
videoElement.addEventListener('click', function () {
var mainVideo = $('#main-video video').get(0);
if (mainVideo.srcObject !== videoElement.srcObject) {
$('#main-video').fadeOut("fast", () => {
$('#main-video p').html(userData);
mainVideo.srcObject = videoElement.srcObject;
$('#main-video').fadeIn("fast");
});
}
});
}
function initMainVideo(videoElement, userData) {
document.querySelector('#main-video video').srcObject = videoElement.srcObject;
document.querySelector('#main-video p').innerHTML = userData;
document.querySelector('#main-video video')['muted'] = true;
}
/**
* --------------------------------------------
* GETTING A TOKEN FROM YOUR APPLICATION SERVER
* --------------------------------------------
* The methods below request the creation of a Session and a Token to
* your application server. This keeps your OpenVidu deployment secure.
*
* In this sample code, there is no user control at all. Anybody could
* access your application server endpoints! In a real production
* environment, your application server must identify the user to allow
* access to the endpoints.
*
* Visit https://docs.openvidu.io/en/stable/application-server to learn
* more about the integration of OpenVidu in your application server.
*/
var APPLICATION_SERVER_URL = "http://localhost:5000/";
function getToken(mySessionId) {
return createSession(mySessionId).then(sessionId => createToken(sessionId));
}
function createSession(sessionId) {
return new Promise((resolve, reject) => {
$.ajax({
type: "POST",
url: APPLICATION_SERVER_URL + "api/sessions",
data: JSON.stringify({ customSessionId: sessionId }),
headers: { "Content-Type": "application/json" },
success: response => resolve(response), // The sessionId
error: (error) => reject(error)
});
});
}
function createToken(sessionId) {
return new Promise((resolve, reject) => {
$.ajax({
type: 'POST',
url: APPLICATION_SERVER_URL + 'api/sessions/' + sessionId + '/connections',
data: JSON.stringify({}),
headers: { "Content-Type": "application/json" },
success: (response) => resolve(response), // The token
error: (error) => reject(error)
});
});
}

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<html>
<head>
<title>openvidu-speech-to-text</title>
<meta name="viewport" content="width=device-width, initial-scale=1" charset="utf-8">
<link rel="shortcut icon" href="resources/images/favicon.ico" type="image/x-icon">
<!-- Bootstrap -->
<script src="https://code.jquery.com/jquery-3.3.1.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<!-- Bootstrap -->
<link rel="stylesheet" href="style.css" type="text/css" media="screen">
<script src="openvidu-browser-2.23.0.js"></script>
<script src="app.js"></script>
</head>
<body>
<nav class="navbar navbar-default">
<div class="container">
<div class="navbar-header">
<a class="navbar-brand" href="/"><img class="demo-logo" src="resources/images/openvidu_vert_white_bg_trans_cropped.png"/> JS</a>
<a class="navbar-brand nav-icon" href="https://github.com/OpenVidu/openvidu-tutorials/tree/master/openvidu-speech-to-text" title="GitHub Repository" target="_blank"><i class="fa fa-github" aria-hidden="true"></i></a>
<a class="navbar-brand nav-icon" href="http://www.docs.openvidu.io/en/stable/tutorials/openvidu-speech-to-text/" title="Documentation" target="_blank"><i class="fa fa-book" aria-hidden="true"></i></a>
</div>
</div>
</nav>
<div id="main-container" class="container">
<div id="join">
<div id="img-div"><img src="resources/images/openvidu_grey_bg_transp_cropped.png" /></div>
<div id="join-dialog" class="jumbotron vertical-center">
<h1>Join a video session</h1>
<form class="form-group" onsubmit="joinSession(); return false">
<p>
<label>Participant</label>
<input class="form-control" type="text" id="userName" required>
</p>
<p>
<label>Session</label>
<input class="form-control" type="text" id="sessionId" required>
</p>
<p class="text-center">
<input class="btn btn-lg btn-success" type="submit" name="commit" value="Join!">
</p>
</form>
</div>
</div>
<div id="session" style="display: none;">
<div id="session-header">
<h1 id="session-title"></h1>
<input class="btn btn-large btn-danger" type="button" id="buttonLeaveSession" onmouseup="leaveSession()" value="Leave session">
</div>
<div id="main-video" class="col-md-6">
<p></p>
<video autoplay playsinline="true"></video>
</div>
<div id="video-container" class="col-md-6"></div>
</div>
</div>
<div id="captions-container" style="display: none;"></div>
<footer class="footer">
<div class="container">
<div class="text-muted">OpenVidu © 2022</div>
<a href="http://www.openvidu.io/" target="_blank"><img class="openvidu-logo" src="resources/images/openvidu_globe_bg_transp_cropped.png"/></a>
</div>
</footer>
</body>
</html>

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openvidu-speech-to-text/web/style.css Normal file
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html {
position: relative;
min-height: 100%;
}
nav {
height: 50px;
width: 100%;
z-index: 1;
background-color: #4d4d4d !important;
border-color: #4d4d4d !important;
border-top-right-radius: 0 !important;
border-top-left-radius: 0 !important;
}
.navbar-header {
width: 100%;
}
.nav-icon {
padding: 5px 15px 5px 15px;
float: right;
}
nav a {
color: #ccc !important;
}
nav i.fa {
font-size: 40px;
color: #ccc;
}
nav a:hover {
color: #a9a9a9 !important;
}
nav i.fa:hover {
color: #a9a9a9;
}
#main-container {
padding-bottom: 60px;
}
/*vertical-center {
position: relative;
top: 30%;
left: 50%;
transform: translate(-50%, -50%);
}*/
.horizontal-center {
margin: 0 auto;
}
.form-control {
color: #0088aa;
font-weight: bold;
}
.form-control:focus {
border-color: #0088aa;
-webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 8px rgba(0, 136, 170, 0.6);
box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 8px rgba(0, 136, 170, 0.6);
}
input.btn {
font-weight: bold;
}
.btn {
font-weight: bold !important;
}
.btn-success {
background-color: #06d362 !important;
border-color: #06d362;
}
.btn-success:hover {
background-color: #1abd61 !important;
border-color: #1abd61;
}
.footer {
position: absolute;
bottom: 0;
width: 100%;
height: 60px;
background-color: #4d4d4d;
}
.footer .text-muted {
margin: 20px 0;
float: left;
color: #ccc;
}
.openvidu-logo {
height: 35px;
float: right;
margin: 12px 0;
-webkit-transition: all 0.1s ease-in-out;
-moz-transition: all 0.1s ease-in-out;
-o-transition: all 0.1s ease-in-out;
transition: all 0.1s ease-in-out;
}
.openvidu-logo:hover {
-webkit-filter: grayscale(0.5);
filter: grayscale(0.5);
}
.demo-logo {
margin: 0;
height: 22px;
float: left;
padding-right: 8px;
}
a:hover .demo-logo {
-webkit-filter: brightness(0.7);
filter: brightness(0.7);
}
#join-dialog {
margin-left: auto;
margin-right: auto;
max-width: 70%;
}
#join-dialog h1 {
color: #4d4d4d;
font-weight: bold;
text-align: center;
}
#img-div {
text-align: center;
margin-top: 3em;
margin-bottom: 3em;
/*position: relative;
top: 20%;
left: 50%;
transform: translate(-50%, -50%);*/
}
#img-div img {
height: 15%;
}
#join-dialog label {
color: #0088aa;
}
#join-dialog input.btn {
margin-top: 15px;
}
#session-header {
margin-bottom: 20px;
}
#session-title {
display: inline-block;
}
#buttonLeaveSession {
float: right;
margin-top: 20px;
}
#video-container video {
position: relative;
float: left;
width: 50%;
cursor: pointer;
}
#video-container div {
float: left;
width: 50%;
position: relative;
margin-left: -50%;
}
#video-container p {
display: inline-block;
background: #f8f8f8;
padding-left: 5px;
padding-right: 5px;
color: #777777;
font-weight: bold;
border-bottom-right-radius: 4px;
}
video {
width: 100%;
height: auto;
}
#main-video p {
position: absolute;
display: inline-block;
background: #f8f8f8;
padding-left: 5px;
padding-right: 5px;
font-size: 22px;
color: #777777;
font-weight: bold;
border-bottom-right-radius: 4px;
}
#session img {
width: 100%;
height: auto;
display: inline-block;
object-fit: contain;
vertical-align: baseline;
}
#session #video-container img {
position: relative;
float: left;
width: 50%;
cursor: pointer;
object-fit: cover;
height: 180px;
}
#captions-container {
width: 90%;
height: 300px;
overflow: auto;
margin: auto;
}
.caption-recognized {
background-color: #ffe87f;
}
/* xs ans md screen resolutions*/
@media screen and (max-width: 991px) and (orientation: portrait) {
#join-dialog {
max-width: inherit;
}
#img-div img {
height: 10%;
}
#img-div {
margin-top: 2em;
margin-bottom: 2em;
}
.container-fluid>.navbar-collapse, .container-fluid>.navbar-header, .container>.navbar-collapse, .container>.navbar-header {
margin-right: 0;
margin-left: 0;
}
.navbar-header i.fa {
font-size: 30px;
}
.navbar-header a.nav-icon {
padding: 7px 3px 7px 3px;
}
}
@media only screen and (max-height: 767px) and (orientation: landscape) {
#img-div {
margin-top: 1em;
margin-bottom: 1em;
}
#join-dialog {
max-width: inherit;
}
}