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streamer.html
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<!doctype html>
<!--
Copyright 2023 Ceeblue B.V.
This file is part of https://github.com/CeeblueTV/webrtc-client which is released under GNU Affero General Public License.
See file LICENSE or go to https://spdx.org/licenses/AGPL-3.0-or-later.html for full license details.
-->
<html lang="en">
<head>
<title>Ceeblue WebRTC Streamer Example</title>
<meta charset="utf-8">
<meta content="width=device-width, initial-scale=1.0" name="viewport">
<link rel="icon" href="./assets/ceeblue-logo-32x32.png" sizes="32x32">
<link rel="icon" href="./assets/ceeblue-logo-192x192.png" sizes="192x192">
<link href="./css/bootstrap.css" rel="stylesheet">
<link href="./css/solid.css" rel="stylesheet">
<link href="./css/fontawesome.css" rel="stylesheet">
<style>
body {
margin-top: 1em;
margin-bottom: 3em;
}
.view-window {
background-color: #333333;
}
.active-view-window {
max-width: 100%;
max-height: 60vh;
z-index: 2147483647;
}
.hidden-view-window {
position: fixed;
visibility: hidden;
}
.error-notifications {
position: center;
text-align: center;
z-index: 1000;
width: max-content;
margin: 10px auto 10px auto;
max-width: 100vh;
}
.error-container {
display: flex;
flex-direction: column;
position: absolute;
right: 0;
left: 0;
margin-left: auto;
margin-right: auto;
}
</style>
</head>
<body class="container">
<div class="row">
<div class="col-md-12">
<img alt="Ceeblue B.V." class="rounded mx-auto d-block" src="./assets/ceeblue-logo.png">
<h3 class="text-center">WebRTC Client Streamer Example</h3>
</div>
<div class="col-md-12" id="main">
<div class="error-container">
<div class="alert alert-danger error-notifications" v-on:click="closeErrorMessage(notification)" role="alert" v-for="notification in errorNotifications" :key="notification.timestamp">
<span> {{ notification.message }} </span>
</div>
</div>
<div class="alert alert-success" id="on-air" role="alert" v-bind:class="{ 'd-none': !isStreaming() }">
<h4 class="text-center font-weight-bold">On Air</h4>
</div>
<div class="card text-center border-0">
<div class="card-body">
<video autoplay class="view-window" id="video-preview" playsinline ref="camera" v-bind:class="{ 'active-view-window': !permanentLandscape, 'hidden-view-window': permanentLandscape }"></video>
<canvas class="view-window" id="canvas-preview" ref="canvas" v-bind:class="{ 'active-view-window': permanentLandscape, 'hidden-view-window': !permanentLandscape }"></canvas>
</div>
</div>
<div class="row ml-1 mr-1" style="display: none">
<div class="form-group col-sm">
<label for="rtp-props-nack">Nack</label>
<input @change="updateRTP()" class="form-control" id="rtp-props-nack" min="0" type="number" v-model="streaming.rtp.nack">
</div>
<div class="form-group col-sm">
<label for="rtp-props-drop">Drop</label>
<input @change="updateRTP()" class="form-control" id="rtp-props-drop" min="0" type="number" v-model="streaming.rtp.drop">
</div>
</div>
<div class="row">
<div class="form-group col-sm-2">
<select class="custom-select" id="connector-selection"
:disabled="!isIdle()" v-model="connectorType">
<option v-bind:value="option" v-for="option in connectorTypes">
{{ option }}
</option>
</select>
</div>
<div class="form-group col-sm-5">
<input :disabled="!isIdle()" class="form-control" id="stream-name" placeholder="Stream name as+30189afc-541d-49b7-9ae0-468d15f62059" type="text" v-model="streamName">
</div>
<div class="form-group col-sm-5">
<input :disabled="!isIdle()" class="form-control" id="access-token" placeholder="Access token ebb5cf7e-7818-4fd7-a1e1-9b9cc9dcdd7e" type="text" v-model="accessToken">
</div>
</div>
<div class="row mb-5 ml-1 mr-1">
<div class="col-sm p-2">
<div class="row">
<div class="col-sm">
<select :disabled="!isIdle()" class="custom-select" v-model="streaming.bitrate">
<option disabled selected>Target bitrate</option>
<option value="700000">0.7 Mbps</option>
<option value="1000000">1 Mbps</option>
<option value="1200000">1.2 Mbps</option>
<option value="1400000">1.4 Mbps</option>
<option value="1600000">1.6 Mbps</option>
<option value="1800000">1.8 Mbps</option>
<option value="2000000">2 Mbps</option>
<option value="2500000">2.5 Mbps</option>
<option value="3000000">3 Mbps</option>
<option value="4000000">4 Mbps</option>
<option value="5000000">5 Mbps</option>
</select>
</div>
<div class="col-sm">
<!-- <select :disabled="!isIdle()" class="custom-select" v-model="streaming.resolution">-->
<!-- <option disabled selected>Target resolution</option>-->
<!-- <option value="1">640x480</option>-->
<!-- </select>-->
</div>
</div>
</div>
<div class="col-sm-2 p-2">
<div class="d-flex justify-content-center">
<button :disabled="!isIdle()" class="btn btn-light" type="button" v-on:click="changeFacingMode()">
<i class="fas" v-bind:class="facingModeClassObject"></i>
</button>
</div>
</div>
<div class="col-sm p-2">
<div class="d-flex justify-content-between">
<div class="form-check">
<input :disabled="!isIdle()" class="form-check-input" id="landscapeCheck" type="checkbox" v-model="permanentLandscape">
<label class="form-check-label" for="landscapeCheck">Landscape</label>
</div>
<div>
<button :disabled="!isIdle()" class="btn btn-light" type="button" v-on:click="mute()">
<i class="" v-bind:class="mutedClassObject"></i>
</button>
</div>
</div>
</div>
</div>
<div class="d-flex justify-content-center">
<button :disabled="isProcessing()" class="btn" id="streaming" type="button" v-bind:class="{ 'btn-danger': isStreaming(), 'btn-success': isIdle(), 'btn-secondary': isProcessing() }" v-on:click="changeState()">
<i class="fas fa-spinner fa-pulse" v-if="isProcessing()"></i>
<span v-else>{{ getStreamingButtonCaption() }}</span>
</button>
</div>
</div>
</div>
<!-- development version, includes helpful console warnings -->
<!--<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>-->
<!-- production version, optimized for size and speed -->
<script src="https://cdn.jsdelivr.net/npm/vue@2"></script>
<script type="module">
import { Streamer, StreamerStats, HTTPConnector, WSController, VERSION, utils } from "../dist/webrtc-client.js";
const { NetAddress, Util, log } = utils;
log('webrtc-client version:', VERSION).info();
log('web-utils version:', utils.VERSION).info();
const DEFAULT_STREAMING_BITRATE = 3000000;
const DEFAULT_STREAMING_WIDTH = 1280;
const DEFAULT_STREAMING_HEIGHT = 720;
const DEFAULT_STREAMING_FRAMERATE = 30;
const DEFAULT_PERMANENT_LANDSCAPE = false;
const StreamingState = {
IDLE: 'IDLE',
STREAMING: 'STREAMING',
PROCESSING: 'PROCESSING'
};
const FacingMode = {
USER: 'user',
ENVIRONMENT: 'environment'
};
let app;
app = new Vue({
el: '#main',
data: {
streamName: null,
accessToken: null,
diagnostics: null,
host: null,
streaming: {
bitrate: DEFAULT_STREAMING_BITRATE,
width: DEFAULT_STREAMING_WIDTH,
height: DEFAULT_STREAMING_HEIGHT,
framerate: DEFAULT_STREAMING_FRAMERATE,
facingMode: FacingMode.USER,
muted: false,
rtp: {
nack: 0,
drop: 0,
},
videoSource: null
},
permanentLandscape: DEFAULT_PERMANENT_LANDSCAPE,
overlayTimestamp: true,
streamer: null,
state: StreamingState.IDLE,
restarting: false,
connectorType:'WebSocket (WS)',
connectorTypes:['WebSocket (WS)', 'WHIP (HTTP)'],
/* UI */
streamingButtonCaption: '',
errorNotifications: []
},
created() {
const options = Util.options();
// init values
const host = options.host;
this.host = new NetAddress(host || location.host, 4433);
this.streamName = options.stream;
this.accessToken = options.accessToken;
this.connectorType = options.whip || (host && host.toLowerCase().startsWith('http')) ? this.connectorTypes[1] : this.connectorTypes[0];
this.diagnostics = options.diagnostics || options.debug;
this.permanentLandscape = options.landscape? true : false;
this.overlayTimestamp = options.timestamp? true : false;
},
mounted() {
this.$refs.canvas.setAttribute('width', this.streaming.width);
this.$refs.canvas.setAttribute('height', this.streaming.height);
this.$refs.camera.setAttribute('width', this.streaming.width);
this.$refs.camera.setAttribute('height', this.streaming.height);
},
beforeUnmount() {
this.errorNotifications.forEach(e => {
try {
clearTimeout(e.closeTimeout);
} catch (e) {
}
});
this.errorNotifications = [];
},
computed: {
facingModeClassObject() {
return {
'fas fa-image': this.streaming.facingMode === FacingMode.USER,
'fas fa-user-alt': this.streaming.facingMode === FacingMode.ENVIRONMENT,
};
},
mutedClassObject() {
return {
'fas fa-microphone-slash': this.streaming.muted,
'fas fa-microphone': !this.streaming.muted,
};
}
},
methods: {
updateRTP() {
if (this.streamer.controller) {
this.streamer.setRTPProps(this.streaming.rtp.nack, this.streaming.rtp.drop);
}
},
changeState() {
if (this.state === StreamingState.IDLE) {
this.state = StreamingState.PROCESSING;
this.startStreaming();
} else if (this.state === StreamingState.STREAMING) {
this.state = StreamingState.PROCESSING;
this.stopStreaming();
}
},
changeFacingMode() {
if (this.streaming.facingMode === FacingMode.USER) {
this.streaming.facingMode = FacingMode.ENVIRONMENT;
} else {
this.streaming.facingMode = FacingMode.USER;
}
},
mute() {
this.streaming.muted = !this.streaming.muted;
},
captureMediaStream() {
log('Capturing media stream ...').info();
return navigator.mediaDevices
.getUserMedia({
audio: !this.streaming.muted,
video: {
facingMode: this.streaming.facingMode,
frameRate: this.streaming.framerate,
width: { ideal: this.streaming.width },
height: { ideal: this.streaming.height }
}
})
.then(stream => {
this.$refs.camera.volume = 0;
this.$refs.camera.muted = true;
this.$refs.camera.srcObject = stream;
this.$refs.camera.play();
this.onDrawFrame.count = 0;
if(this.diagnostics) {
this.diagnostics = { timestamps: []};
window.requestAnimationFrame(this.onDrawFrame);
}
if (this.permanentLandscape) {
stream = this.setupLandscapeAnimation(stream);
window.requestAnimationFrame(this.onDrawFrame);
} else if (this.overlayTimestamp) {
window.requestAnimationFrame(this.onDrawFrame);
}
return stream;
})
.catch((e) => {
log(
this.showErrorMessage(`Failed to capture media stream ${Util.stringify(e)}`)
).error();
});
},
startStreaming() {
if (!(this.streamName && (this.streamName.length > 0))) {
this.state = StreamingState.IDLE;
this.showErrorMessage('Stream name is empty!');
return;
}
this.captureMediaStream()
.then(stream => {
log('Start streaming...').info();
if (!stream) {
this.state = StreamingState.IDLE;
return;
}
this.streamer = new Streamer(this.connectorType.startsWith('WebSocket') ? WSController : HTTPConnector);
this.streamer.onStart = this.onStreamingStart.bind(this);
this.streamer.onStop = this.onStreamingStop.bind(this);
this.streamer.onRTPProps = this.onRTPProps.bind(this);
this.streamer.start(stream,
{
endPoint:this.host.toString(),
streamName: this.streamName,
accessToken: this.accessToken,
iceServer: {
urls: ['turn:' + this.host.domain + ':3478?transport=tcp', 'turn:' + this.host.domain + ':3478'],
username: 'ceeblue', credential: 'ceeblue'
}
},
{
maximum: this.streaming.bitrate,
startup: this.streaming.bitrate * 0.7
});
// WebSocket streamer report every second
// const telemetry = new Telemetry('wss://address/metrics');
// telemetry.report(new StreamerStats(this.streamer), 1);
});
},
stopStreaming() {
if (this.streamer) {
log('Stop streaming...').info();
this.streamer.stop();
}
},
onStreamingStart() {
log('onStreamingStart').info();
this.state = StreamingState.STREAMING;
if (this.streamer.controller) {
// to get current values!
this.streamer.setRTPProps();
}
},
onStreamingStop(error) {
if(error) {
log('onStreamingStop', error).error();
this.showErrorMessage(error.name, true);
} else {
log('onStreamingStop').info();
}
this.state = StreamingState.IDLE;
this.$refs.camera.pause();
this.$refs.camera.srcObject = null;
// stop stream!
if(this.streaming.videoSource) {
this.streaming.videoSource.stop();
this.streaming.videoSource = null;
}
this.streamer = null;
this.clearFrame();
if (this.restarting) {
this.restarting = false;
setTimeout(() => {
log('Planned restarting...').info();
this.startStreaming();
}, 100);
}
},
onRTPProps(nack, drop) {
log('* onRTPProps').info();
if (nack) {
this.streaming.rtp.nack = nack;
}
if (drop) {
this.streaming.rtp.drop = drop;
}
},
setupLandscapeAnimation(cameraStream) {
log('* SetupLandscapeAnimation').info();
const videoTrack = cameraStream.getVideoTracks()[0];
const capabilities = videoTrack.getCapabilities();
log('* Track settings: ', capabilities, Util.stringify(videoTrack.getSettings())).info();
try {
if (capabilities.frameRate && capabilities.frameRate.max) {
videoTrack.applyConstraints({
frameRate: {
ideal: capabilities.frameRate.max,
min: capabilities.frameRate.max,
max: (capabilities.frameRate.max > this.streaming.framerate ? this.streaming.framerate : capabilities.frameRate.max)
}
});
}
} catch (e) {
log('Constraint error (ignoring):', e).error();
}
// Create a stream which captures canvas image + has the same audio tracks that original media-stream
const stream = new MediaStream();
/// add video from canvas capture
stream.addTrack(this.$refs.canvas.captureStream(this.streaming.framerate).getVideoTracks()[0]);
/// add audio from camera
cameraStream.getAudioTracks().forEach(track => stream.addTrack(track));
this.streaming.videoSource = videoTrack;
return stream;
},
onDrawFrame: function () {
if(!this.streamer)
return;
++this.onDrawFrame.count;
let context = this.$refs.canvas.getContext('2d');
context.fillStyle = '#000000';
context.fillRect(0, 0, this.streaming.width, this.streaming.height);
let videoSettings = this.streaming.videoSource;
if(videoSettings) {
// Landscape Wrapper is set! Draw canvas!
videoSettings = videoSettings.getSettings();
if (videoSettings.width && videoSettings.height) {
const scaleFactor = Math.min(this.streaming.height / videoSettings.height, this.streaming.width / videoSettings.width);
const scaledWidth = videoSettings.width * scaleFactor;
const scaledHeight = videoSettings.height * scaleFactor;
context.drawImage(this.$refs.camera,
0, 0, videoSettings.width, videoSettings.height,
((this.streaming.width - scaledWidth) / 2), 0, scaledWidth, scaledHeight);
} else {
context.drawImage(this.$refs.camera,
0, 0, this.streaming.width, this.streaming.height);
}
context.globalAlpha = 1;
}
if (this.diagnostics) {
// Debug is activated
context.font = 'bold 32px sans-serif';
context.textAlign = 'left';
context.fillStyle = '#ff2b00';
const msgHeight = 32 + 10;
let shift = msgHeight;
if (videoSettings && videoSettings.width && videoSettings.height) {
context.fillText(`Camera: ${videoSettings.width}X${videoSettings.height} ${videoSettings.frameRate}fps`, 20, shift);
shift += msgHeight;
}
context.fillText(`Streaming: ${this.streaming.width}X${this.streaming.height}`, 20, shift);
shift += msgHeight;
const timestamps = this.diagnostics.timestamps;
timestamps.push(Date.now());
if (timestamps.length > 30) {
timestamps.shift();
}
const begin = timestamps[0];
const end = timestamps[timestamps.length - 1];
const fps = timestamps.length / ((end - begin) / 1000);
context.fillText(`#${this.onDrawFrame.count} ${fps.toFixed(2)}fps`, 20, shift);
}
if (this.overlayTimestamp) {
// Overlay time enabled
const timestamp = new Date();
context.font = '36px Arial';
context.fillStyle = '#1854de';
context.textAlign = 'center';
context.fillText(`${timestamp.toLocaleDateString('en-GB', {
weekday: 'long',
year: 'numeric',
month: 'long',
day: 'numeric',
timeZone: 'Europe/Amsterdam'
})} ${timestamp.toLocaleTimeString('en-GB', {timeZone: 'Europe/Amsterdam', timeZoneName: 'short'})}`,
this.streaming.width / 2, this.streaming.height - 50);
context.fillText(`${timestamp.toISOString()}`,
this.streaming.width / 2, this.streaming.height - 10);
}
window.requestAnimationFrame(this.onDrawFrame);
},
clearFrame() {
let context = this.$refs.canvas.getContext('2d');
context.fillStyle = '#333333';
context.fillRect(0, 0, this.streaming.width, this.streaming.height);
},
/* UI */
isStreaming() {
return this.state === StreamingState.STREAMING;
},
isIdle() {
return this.state === StreamingState.IDLE;
},
isProcessing() {
return this.state === StreamingState.PROCESSING;
},
getStreamingButtonCaptionByState(state) {
if (state === StreamingState.IDLE) {
return 'Start streaming';
} else if (state === StreamingState.STREAMING) {
return 'Stop streaming';
} else {
return '...';
}
},
getStreamingButtonCaption() {
return this.getStreamingButtonCaptionByState(this.state);
},
showErrorMessage(message, isPersistence) {
const timestamp = Date.now();
const errorNotification = { message, timestamp };
let timeOut = 3000;
if (isPersistence) {
timeOut *= timeOut;
}
errorNotification.closeTimeout = setTimeout(() => {
this.errorNotifications = this.errorNotifications.filter(e => e.timestamp !== timestamp);
}, timeOut);
this.errorNotifications.push(errorNotification);
return message;
},
closeErrorMessage(notification) {
this.errorNotifications = this.errorNotifications.filter(e => e.timestamp !== notification.timestamp);
clearTimeout(notification.closeTimeout);
},
}
});
</script>
</body>
</html>