mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
synced 2024-11-26 13:31:00 +00:00
6a23ae168f
It may be desirable for the frontend to receive ancillary information over the control channel. Such information includes but is not limited to time code metas, support for other metas (eg custom meta) might be implemented in the future, as well as downstream events. This patch implements a new info message, probes buffers that arrive at nicesink to look up timecode metas and potentially forwards them to the consumer when the `forward-metas` property is set appropriately. Internally, a "dye" meta is used to trace the media identifier the packet we are about to send over relates to, as rtpfunnel bundles all packets together. The example frontend code also gets a minor update and now logs info messages to the console. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1749>
503 lines
15 KiB
HTML
503 lines
15 KiB
HTML
<!doctype html>
|
|
<html lang="en">
|
|
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
<title>GstWebRTC API</title>
|
|
<style>
|
|
body {
|
|
background-color: #3a3f44;
|
|
color: #c8c8c8;
|
|
}
|
|
|
|
section {
|
|
border-top: 2px solid #272b30;
|
|
}
|
|
|
|
main {
|
|
border-bottom: 2px solid #272b30;
|
|
padding-bottom: 1em;
|
|
}
|
|
|
|
.button {
|
|
cursor: pointer;
|
|
border-radius: 10px;
|
|
user-select: none;
|
|
}
|
|
|
|
.button:disabled {
|
|
cursor: default;
|
|
}
|
|
|
|
button.button {
|
|
box-shadow: 4px 4px 14px 1px #272b30;
|
|
border: none;
|
|
}
|
|
|
|
.spinner {
|
|
display: inline-block;
|
|
position: absolute;
|
|
width: 80px;
|
|
height: 80px;
|
|
}
|
|
|
|
.spinner>div {
|
|
box-sizing: border-box;
|
|
display: block;
|
|
position: absolute;
|
|
width: 64px;
|
|
height: 64px;
|
|
margin: 8px;
|
|
border: 8px solid #fff;
|
|
border-radius: 50%;
|
|
animation: spinner 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
|
|
border-color: #fff transparent transparent transparent;
|
|
}
|
|
|
|
.spinner div:nth-child(1) {
|
|
animation-delay: -0.45s;
|
|
}
|
|
|
|
.spinner div:nth-child(2) {
|
|
animation-delay: -0.3s;
|
|
}
|
|
|
|
.spinner div:nth-child(3) {
|
|
animation-delay: -0.15s;
|
|
}
|
|
|
|
@keyframes spinner {
|
|
0% {
|
|
transform: rotate(0deg);
|
|
}
|
|
|
|
100% {
|
|
transform: rotate(360deg);
|
|
}
|
|
}
|
|
|
|
video:focus-visible,
|
|
video:focus {
|
|
outline: none;
|
|
}
|
|
|
|
div.video, div.offer-options, div.request-box {
|
|
position: relative;
|
|
margin: 1em;
|
|
}
|
|
|
|
div.request-box {
|
|
display: none;
|
|
}
|
|
|
|
#remote-streams>li.streaming.has-remote-control .request-box {
|
|
display: block;
|
|
}
|
|
|
|
div.video>div.fullscreen {
|
|
position: absolute;
|
|
top: 0;
|
|
right: 0;
|
|
width: 2.6em;
|
|
height: 2.6em;
|
|
}
|
|
|
|
div.video>div.fullscreen>span {
|
|
position: absolute;
|
|
top: 0.3em;
|
|
right: 0.4em;
|
|
font-size: 1.5em;
|
|
font-weight: bolder;
|
|
cursor: pointer;
|
|
user-select: none;
|
|
display: none;
|
|
text-shadow: 1px 1px 4px #272b30;
|
|
}
|
|
|
|
div.video>video {
|
|
width: 320px;
|
|
height: 240px;
|
|
background-color: #202020;
|
|
border-radius: 15px;
|
|
box-shadow: 4px 4px 14px 1px #272b30;
|
|
}
|
|
|
|
div.video>.spinner {
|
|
top: 80px;
|
|
left: 120px;
|
|
}
|
|
|
|
#capture {
|
|
padding-top: 1.2em;
|
|
}
|
|
|
|
#capture>.button {
|
|
vertical-align: top;
|
|
margin-top: 1.5em;
|
|
margin-left: 1em;
|
|
background-color: #98d35e;
|
|
width: 5em;
|
|
height: 5em;
|
|
}
|
|
|
|
#capture>.client-id {
|
|
display: block;
|
|
}
|
|
|
|
#capture>.client-id::before {
|
|
content: "Client ID:";
|
|
margin-right: 0.5em;
|
|
}
|
|
|
|
#capture.has-session>.button {
|
|
background-color: #e36868;
|
|
}
|
|
|
|
#capture>.button::after {
|
|
content: "Start Capture";
|
|
}
|
|
|
|
#capture.has-session>.button::after {
|
|
content: "Stop Capture";
|
|
}
|
|
|
|
#capture .spinner {
|
|
display: none;
|
|
}
|
|
|
|
#capture.starting .spinner {
|
|
display: inline-block;
|
|
}
|
|
|
|
#remote-streams {
|
|
list-style: none;
|
|
padding-left: 1em;
|
|
}
|
|
|
|
#remote-streams>li .button::before {
|
|
content: "\2799";
|
|
padding-right: 0.2em;
|
|
}
|
|
|
|
#remote-streams>li.has-session .button::before {
|
|
content: "\2798";
|
|
}
|
|
|
|
#remote-streams>li div.video {
|
|
display: none;
|
|
}
|
|
|
|
#remote-streams>li.has-session div.video {
|
|
display: inline-block;
|
|
}
|
|
|
|
#remote-streams>li.streaming .spinner {
|
|
display: none;
|
|
}
|
|
|
|
#remote-streams>li.streaming>div.video>div.fullscreen:hover>span {
|
|
display: block;
|
|
}
|
|
|
|
#remote-streams .remote-control {
|
|
display: none;
|
|
position: absolute;
|
|
top: 0.2em;
|
|
left: 0.3em;
|
|
font-size: 1.8em;
|
|
font-weight: bolder;
|
|
animation: blink 1s ease-in-out infinite alternate;
|
|
text-shadow: 1px 1px 4px #272b30;
|
|
}
|
|
|
|
@keyframes blink {
|
|
to {
|
|
opacity: 0;
|
|
}
|
|
}
|
|
|
|
#remote-streams>li.streaming.has-remote-control .remote-control {
|
|
display: block;
|
|
}
|
|
|
|
#remote-streams>li.streaming.has-remote-control>div.video>video {
|
|
width: 640px;
|
|
height: 480px;
|
|
}
|
|
</style>
|
|
<script>
|
|
function initCapture(api) {
|
|
const captureSection = document.getElementById("capture");
|
|
const clientIdElement = captureSection.querySelector(".client-id");
|
|
const videoElement = captureSection.getElementsByTagName("video")[0];
|
|
|
|
const listener = {
|
|
connected: function(clientId) { clientIdElement.textContent = clientId; },
|
|
disconnected: function() { clientIdElement.textContent = "none"; }
|
|
};
|
|
api.registerConnectionListener(listener);
|
|
|
|
document.getElementById("capture-button").addEventListener("click", (event) => {
|
|
event.preventDefault();
|
|
|
|
if (captureSection._producerSession) {
|
|
captureSection._producerSession.close();
|
|
} else if (!captureSection.classList.contains("starting")) {
|
|
captureSection.classList.add("starting");
|
|
|
|
const constraints = {
|
|
video: { width: 1280, height: 720 }
|
|
};
|
|
navigator.mediaDevices.getUserMedia(constraints).then((stream) => {
|
|
const session = api.createProducerSession(stream);
|
|
if (session) {
|
|
captureSection._producerSession = session;
|
|
|
|
session.addEventListener("error", (event) => {
|
|
if (captureSection._producerSession === session) {
|
|
console.error(event.message, event.error);
|
|
}
|
|
});
|
|
|
|
session.addEventListener("closed", () => {
|
|
if (captureSection._producerSession === session) {
|
|
videoElement.pause();
|
|
videoElement.srcObject = null;
|
|
captureSection.classList.remove("has-session", "starting");
|
|
delete captureSection._producerSession;
|
|
}
|
|
});
|
|
|
|
session.addEventListener("stateChanged", (event) => {
|
|
if ((captureSection._producerSession === session) &&
|
|
(event.target.state === GstWebRTCAPI.SessionState.streaming)) {
|
|
videoElement.srcObject = stream;
|
|
videoElement.play().catch(() => {});
|
|
captureSection.classList.remove("starting");
|
|
}
|
|
});
|
|
|
|
session.addEventListener("clientConsumerAdded", (event) => {
|
|
if (captureSection._producerSession === session) {
|
|
console.info(`client consumer added: ${event.detail.peerId}`);
|
|
}
|
|
});
|
|
|
|
session.addEventListener("clientConsumerRemoved", (event) => {
|
|
if (captureSection._producerSession === session) {
|
|
console.info(`client consumer removed: ${event.detail.peerId}`);
|
|
}
|
|
});
|
|
|
|
captureSection.classList.add("has-session");
|
|
session.start();
|
|
} else {
|
|
for (const track of stream.getTracks()) {
|
|
track.stop();
|
|
}
|
|
|
|
captureSection.classList.remove("starting");
|
|
}
|
|
}).catch((error) => {
|
|
console.error("cannot have access to webcam and microphone", error);
|
|
captureSection.classList.remove("starting");
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
function initRemoteStreams(api) {
|
|
const remoteStreamsElement = document.getElementById("remote-streams");
|
|
|
|
const listener = {
|
|
producerAdded: function(producer) {
|
|
const producerId = producer.id
|
|
if (!document.getElementById(producerId)) {
|
|
remoteStreamsElement.insertAdjacentHTML("beforeend",
|
|
`<li id="${producerId}">
|
|
<div class="button">${producer.meta.name || producerId}
|
|
</div>
|
|
<div class="offer-options">
|
|
<textarea rows="5" cols="50" placeholder="offer options, empty to answer. For example:\n{\n "offerToReceiveAudio": 1\n "offerToReceiveVideo": 1\n}\n"></textarea>
|
|
</div>
|
|
<div class="request-box">
|
|
<textarea rows="4" cols="50" placeholder="JSON request to send over"></textarea>
|
|
<button disabled="disabled">Submit request</button>
|
|
</div>
|
|
<div class="video">
|
|
<div class="spinner">
|
|
<div></div>
|
|
<div></div>
|
|
<div></div>
|
|
<div></div>
|
|
</div>
|
|
<span class="remote-control">©</span>
|
|
<video></video>
|
|
<div class="fullscreen"><span title="Toggle fullscreen">▢</span></div>
|
|
</div>
|
|
</li>`);
|
|
|
|
const entryElement = document.getElementById(producerId);
|
|
const videoElement = entryElement.getElementsByTagName("video")[0];
|
|
const offerTextareaElement = entryElement.getElementsByTagName("textarea")[0];
|
|
const requestTextAreaElement = entryElement.getElementsByTagName("textarea")[1];
|
|
const submitRequestButtonElement = entryElement.getElementsByTagName("button")[0];
|
|
|
|
submitRequestButtonElement.addEventListener("click", (event) => {
|
|
try {
|
|
let request = requestTextAreaElement.value;
|
|
let id = entryElement._consumerSession.remoteController.sendControlRequest(request);
|
|
} catch (ex) {
|
|
console.error("Failed to parse mix matrix:", ex);
|
|
return;
|
|
}
|
|
});
|
|
|
|
videoElement.addEventListener("playing", () => {
|
|
if (entryElement.classList.contains("has-session")) {
|
|
entryElement.classList.add("streaming");
|
|
}
|
|
});
|
|
|
|
entryElement.addEventListener("click", (event) => {
|
|
event.preventDefault();
|
|
if (!event.target.classList.contains("button")) {
|
|
return;
|
|
}
|
|
|
|
if (entryElement._consumerSession) {
|
|
entryElement._consumerSession.close();
|
|
} else {
|
|
let session = null;
|
|
if (offerTextareaElement.value == '') {
|
|
session = api.createConsumerSession(producerId);
|
|
} else {
|
|
try {
|
|
let offerOptions = JSON.parse(offerTextareaElement.value);
|
|
session = api.createConsumerSessionWithOfferOptions(producerId, offerOptions);
|
|
} catch (ex) {
|
|
console.error("Failed to parse offer options:", ex);
|
|
return;
|
|
}
|
|
}
|
|
if (session) {
|
|
entryElement._consumerSession = session;
|
|
|
|
session.mungeStereoHack = true;
|
|
|
|
session.addEventListener("error", (event) => {
|
|
if (entryElement._consumerSession === session) {
|
|
console.error(event.message, event.error);
|
|
}
|
|
});
|
|
|
|
session.addEventListener("closed", () => {
|
|
if (entryElement._consumerSession === session) {
|
|
videoElement.pause();
|
|
videoElement.srcObject = null;
|
|
entryElement.classList.remove("has-session", "streaming", "has-remote-control");
|
|
delete entryElement._consumerSession;
|
|
}
|
|
});
|
|
|
|
session.addEventListener("streamsChanged", () => {
|
|
if (entryElement._consumerSession === session) {
|
|
const streams = session.streams;
|
|
if (streams.length > 0) {
|
|
videoElement.srcObject = streams[0];
|
|
videoElement.play().catch(() => {});
|
|
}
|
|
}
|
|
});
|
|
|
|
session.addEventListener("remoteControllerChanged", () => {
|
|
if (entryElement._consumerSession === session) {
|
|
const remoteController = session.remoteController;
|
|
if (remoteController) {
|
|
entryElement.classList.add("has-remote-control");
|
|
submitRequestButtonElement.disabled = false;
|
|
remoteController.attachVideoElement(videoElement);
|
|
remoteController.addEventListener("info", (e) => {
|
|
console.log("Received info message from producer: ", e.detail);
|
|
});
|
|
} else {
|
|
entryElement.classList.remove("has-remote-control");
|
|
submitRequestButtonElement.disabled = true;
|
|
}
|
|
}
|
|
});
|
|
|
|
entryElement.classList.add("has-session");
|
|
session.connect();
|
|
}
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
producerRemoved: function(producer) {
|
|
const element = document.getElementById(producer.id);
|
|
if (element) {
|
|
if (element._consumerSession) {
|
|
element._consumerSession.close();
|
|
}
|
|
|
|
element.remove();
|
|
}
|
|
}
|
|
};
|
|
|
|
api.registerProducersListener(listener);
|
|
for (const producer of api.getAvailableProducers()) {
|
|
listener.producerAdded(producer);
|
|
}
|
|
}
|
|
|
|
window.addEventListener("DOMContentLoaded", () => {
|
|
document.addEventListener("click", (event) => {
|
|
if (event.target.matches("div.video>div.fullscreen:hover>span")) {
|
|
event.preventDefault();
|
|
event.target.parentNode.previousElementSibling.requestFullscreen();
|
|
}
|
|
});
|
|
|
|
const signalingProtocol = window.location.protocol.startsWith("https") ? "wss" : "ws";
|
|
const gstWebRTCConfig = {
|
|
meta: { name: `WebClient-${Date.now()}` },
|
|
signalingServerUrl: `${signalingProtocol}://${window.location.hostname}:8443`,
|
|
};
|
|
|
|
const api = new GstWebRTCAPI(gstWebRTCConfig);
|
|
initCapture(api);
|
|
initRemoteStreams(api);
|
|
});
|
|
</script>
|
|
</head>
|
|
|
|
<body>
|
|
<header>
|
|
<h1>GstWebRTC API</h1>
|
|
</header>
|
|
<main>
|
|
<section id="capture">
|
|
<span class="client-id">none</span>
|
|
<button class="button" id="capture-button"></button>
|
|
<div class="video">
|
|
<div class="spinner">
|
|
<div></div>
|
|
<div></div>
|
|
<div></div>
|
|
<div></div>
|
|
</div>
|
|
<video></video>
|
|
</div>
|
|
</section>
|
|
<section>
|
|
<h1>Remote Streams</h1>
|
|
<ul id="remote-streams"></ul>
|
|
</section>
|
|
</main>
|
|
</body>
|
|
|
|
</html>
|