I have simple animation created using create js and ffmpegserver.js.
ffmpegserver.js.
This is a simple node server and library that sends canvas frames to the server and uses FFmpeg to compress the video. It can be used standalone or with CCapture.js.
Here is repo: video rendering demo.
on folder public, I have demos eg test3.html and test3.js
Test3.html
<!DOCTYPE html>
<html>
<head>
<title>TweenJS: Simple Tween Demo</title>
<style>
canvas {
border: 1px solid #08bf31;
justify-content: center;
display: flex;
align-items: center;
margin: 0px auto;
margin-bottom: 40px;
}
a {
width: 150px;
height: 45px;
background: red;
text-align: center;
display: flex;
justify-content: center;
align-items: center;
border-radius: 300px;
color: white;
}
#container{
flex-direction: column;
justify-content: center;
display: flex;
align-items: center;
margin: 0px auto;
}
#progress{
margin: 30px;
}
#preview{
margin: 40px;
width: 150px;
height: 45px;
background: deepskyblue;
color: white;
border: none;
border-radius: 300px;
}
</style>
</head>
<body onload="init();">
<div>
<div id="container">
<h1>Simple Tween Demo</h1>
<canvas id="testCanvas" width="500" height="400"></canvas>
<div id="progress"></div>
</div>
</div>
<script src="http://localhost:8081/ffmpegserver/CCapture.js"></script>
<script src="http://localhost:8081/ffmpegserver/ffmpegserver.js"></script>
<script src="https://code.createjs.com/1.0.0/createjs.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tween.js/17.2.0/Tween.js"></script>
<script src="test3.js"></script>
</body>
</html>
Test3.js
/* eslint-disable eol-last */
/* eslint-disable no-undef */
/* eslint-disable quotes */
var canvas, stage;
function init() {
var framesPerSecond = 60;
var numFrames = framesPerSecond * 5; // a 5 second 60fps video
var frameNum = 0;
var progressElem = document.getElementById("progress");
var progressNode = document.createTextNode("");
progressElem.appendChild(progressNode);
function onProgress(progress) {
progressNode.nodeValue = (progress * 100).toFixed(1) + "%";
}
function showVideoLink(url, size) {
size = size ? (" [size: " + (size / 1024 / 1024).toFixed(1) + "meg]") : " [unknown size]";
var a = document.createElement("a");
a.href = url;
var filename = url;
var slashNdx = filename.lastIndexOf("/");
if (slashNdx >= 0) {
filename = filename.substr(slashNdx + 1);
}
a.download = filename;
a.appendChild(document.createTextNode("Download"));
var container = document.getElementById("container").insertBefore(a, progressElem);
}
var capturer = new CCapture( {
format: 'ffmpegserver',
//workersPath: "3rdparty/",
//format: 'gif',
//verbose: true,
framerate: framesPerSecond,
onProgress: onProgress,
//extension: ".mp4",
//codec: "libx264",
} );
capturer.start();
canvas = document.getElementById("testCanvas");
stage = new createjs.Stage(canvas);
var ball = new createjs.Shape();
ball.graphics.setStrokeStyle(5, 'round', 'round');
// eslint-disable-next-line quotes
ball.graphics.beginStroke('#000000');
ball.graphics.beginFill("#FF0000").drawCircle(0, 0, 50);
ball.graphics.setStrokeStyle(1, 'round', 'round');
ball.graphics.beginStroke('#000000');
ball.graphics.moveTo(0, 0);
ball.graphics.lineTo(0, 50);
ball.graphics.endStroke();
ball.x = 200;
ball.y = -50;
createjs.Tween.get(ball, {loop: -1})
.to({x: ball.x, y: canvas.height - 55, rotation: -360}, 1500, createjs.Ease.bounceOut)
.wait(1000)
.to({x: canvas.width - 55, rotation: 360}, 2500, createjs.Ease.bounceOut)
.wait(1000)
.to({scaleX: 2, scaleY: 2}, 2500, createjs.Ease.quadOut)
.wait(1000)
stage.addChild(ball);
createjs.Ticker.addEventListener("tick", stage);
function render() {
requestAnimationFrame(render);
capturer.capture( canvas );
++frameNum;
if (frameNum < numFrames) {
progressNode.nodeValue = "rendered frame# " + frameNum + " of " + numFrames;
} else if (frameNum === numFrames) {
capturer.stop();
capturer.save(showVideoLink);
}
}
render();
}
[1]: https://github.com/throne1986/video-rendering
Everything works fine, you can test it yourself if you want by cloning the repo.
Right now animation rendering happens in client side, I would like this animation rendering to happen in the backend side
What do I need to change to make this animation rendering in backend server side using Nodejs? any help or suggestions will be appreciated.
from Animation rendering using Nodejs on backend server side
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