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watch.html
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<!DOCTYPE html>
<html>
<head>
<style>
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite; /* Safari */
animation: spin 2s linear infinite;
}
/* Safari */
@-webkit-keyframes spin {
0% { -webkit-transform: rotate(0deg); }
100% { -webkit-transform: rotate(360deg); }
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
</style>
</head>
<body>
<div style="text-align:center">
<button onclick="join()">Reload the stream</button>
<button onclick="playPause()">Play/Pause</button>
<button onclick="makeBig()">Big</button>
<button onclick="makeSmall()">Small</button>
<button onclick="makeNormal()">Normal</button>
<br><br>
<center><div name="progressBar" id="progressBar" class="loader"><br><b>Loading the stream</b></div></center>
<video id="stream" preload="auto" width="420" src="" type="video/mp4">
Your browser does not support HTML5 video.
</video>
<video id="streamBuffer" preload="auto" width="420" src="" type="video/mp4">
Your browser does not support HTML5 video buffer.
</video>
</div>
<script>
const daemonIp = "http://127.0.0.1:8080/ipfs/";
const hostIp = "http://127.0.0.1:8888/sync";
var myVideo = document.getElementById("stream");
var buffer = document.getElementById("streamBuffer");
var progressBar = document.getElementById("progressBar");
var parts = [];
var currentPart = 0;
var bufferedPart = -1;
var streamCreatedDate = "";
hideProgress();
buffer.onended = function() {
currentPart++;
if (parts.length > 0 && currentPart < parts.length) {
if (bufferedPart == currentPart) {
buffer.style.visibility = 'hidden';
myVideo.style.visibility = 'visible';
myVideo.play();
return;
}
continueStream(daemonIp + parts[currentPart]);
} else {
showProgress();
console.log("waiting for the parts..");
}
};
myVideo.onended = function() {
currentPart++;
continueVideo();
};
myVideo.addEventListener('canplay', function() {
myVideo.style.visibility = 'visible';
});
var getJSON = function(url, callback) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'json';
xhr.onload = function() {
var status = xhr.status;
if (status === 200) {
callback(null, xhr.response);
} else {
callback(status, xhr.response);
}
};
xhr.send();
};
function continueVideo() {
// if the stream has changed
if (currentPart - 2 > parts.length) {
currentPart = 0;
}
if (parts.length > 0 && currentPart < parts.length)
{
if (bufferedPart == currentPart)
{
if (currentPart + 1 < parts.length)
{
myVideo.pause();
myVideo.setAttribute('src', addr);
myVideo.load();
}
myVideo.style.visibility = 'hidden';
buffer.style.visibility = 'visible';
buffer.play();
return;
}
continueStream(daemonIp + parts[currentPart]);
}
else {
showProgress();
console.log("waiting for the parts..");
setTimeout(updateParts, 2000);
}
}
function updateParts() {
getJSON(hostIp, partUpdatCallback);
}
function partUpdatCallback(status, response) {
parts = response['parts'];
if (streamCreatedDate !== response['started']) {
streamCreatedDate = response['started'];
currentPart = 0;
console.log("stream has changed")
}
continueVideo();
}
function hideProgress() {
progressBar.style.display = 'none';
progressBar.style.visibility = 'hidden';
myVideo.style.visibility = 'visible';
}
function showProgress() {
progressBar.style.display = 'block';
progressBar.style.visibility = 'visible';
myVideo.style.visibility = 'hidden';
}
function joinCallback(status, response) {
//console.log(status, response);
parts = response['parts'];
streamCreatedDate = response['started'];
if (parts.length > 0 && currentPart < parts.length) {
console.log("stream now has", parts.length, "parts");
currentPart = 0;
bufferedPart = -1;
continueStream(daemonIp + parts[currentPart]);
}
}
function join() {
getJSON(hostIp, joinCallback);
myVideo.addEventListener('error', function(msg) {
showProgress();
alert('Stream was interrupted. Trying to reconnect...', msg);
});
}
async function bufferStream(addr) {
console.log("buffering", addr);
if (myVideo.style.visibility === 'hidden') {
myVideo.pause();
myVideo.setAttribute('src', addr);
await myVideo.load();
myVideo.style.visibility = 'hidden';
} else {
buffer.pause();
buffer.setAttribute('src', addr);
await buffer.load();
buffer.style.visibility = 'hidden';
}
}
async function continueStream(addr) {
console.log("continuing on", addr);
hideProgress();
myVideo.pause();
myVideo.setAttribute('src', addr);
await myVideo.load();
myVideo.play();
if (currentPart + 1 < parts.length) {
currentPart++;
bufferedPart = currentPart;
bufferStream(daemonIp + parts[currentPart])
return;
}
}
function playPause() {
if (myVideo.paused) {
hideProgress();
myVideo.play();
}
else myVideo.pause();
}
function makeBig() {
myVideo.width = 1080;
}
function makeSmall() {
myVideo.width = 420;
}
function makeNormal() {
myVideo.width = 720;
}
</script>
</body>
</html>