Project Title: “Ghost Rider: Spirit of Vengeance - High-Performance Media with WebCodecs API”
Level: Advanced (Secure context required: https:// or http://localhost)
Description:
In this project, we integrate the fiery and intense atmosphere of Ghost Rider: Spirit of Vengeance with the powerful capabilities of the WebCodecs API. Ghost Rider: Spirit of Vengeance follows Johnny Blaze as he harnesses his supernatural powers to fight evil. Similarly, this project will enable users to handle high-performance media encoding and decoding, providing a seamless media experience.
Features:
- Media Encoding and Decoding: Use the WebCodecs API to efficiently encode and decode video and audio data.
- Real-Time Media Processing: Implement real-time media processing for a smooth and responsive user experience.
- Thematic Design: Create a design inspired by the intense and fiery world of Ghost Rider: Spirit of Vengeance.
Starting Code:
Beginner Hints:
- Create a single
index.htmlfile. - Copy the full HTML code block into that file.
- Open
index.htmlin your browser. If something doesn’t work, try a local server likepython -m http.server. - Open DevTools Console to spot errors and typos quickly.
Here’s a basic setup to get you started. This includes the initial HTML, CSS, and JavaScript to integrate the WebCodecs API and create a high-performance media experience.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Ghost Rider: Spirit of Vengeance - High-Performance Media</title>
<style>
body {
font-family: Arial, sans-serif;
background-color: #111;
color: #fff;
text-align: center;
padding: 20px;
}
h1 {
color: #ff4500;
}
video {
width: 80%;
max-width: 800px;
margin: 20px auto;
display: block;
}
</style>
</head>
<body>
<h1>Ghost Rider: Spirit of Vengeance - High-Performance Media</h1>
<p>Experience high-performance media handling with the WebCodecs API!</p>
<button id="startButton">Run WebCodecs Demo</button>
<canvas id="outputCanvas" width="320" height="180"></canvas>
<div id="output"></div>
<script>
async function initializeVideo() {
const startButton = document.getElementById('startButton');
const canvas = document.getElementById('outputCanvas');
const output = document.getElementById('output');
const ctx = canvas.getContext('2d');
if (!('VideoDecoder' in window) || !('VideoEncoder' in window)) {
output.innerText = 'WebCodecs API is not supported in this browser.';
startButton.disabled = true;
return;
}
const width = canvas.width;
const height = canvas.height;
const sourceCanvas = document.createElement('canvas');
sourceCanvas.width = width;
sourceCanvas.height = height;
const sourceCtx = sourceCanvas.getContext('2d');
const decoder = new VideoDecoder({
output: frame => {
ctx.drawImage(frame, 0, 0, width, height);
frame.close();
},
error: err => {
output.innerText = `Decode error: ${err.message}`;
}
});
const encoder = new VideoEncoder({
output: chunk => decoder.decode(chunk),
error: err => {
output.innerText = `Encode error: ${err.message}`;
}
});
const config = { codec: 'vp8', width, height, bitrate: 500000, framerate: 30 };
if (VideoEncoder.isConfigSupported) {
const support = await VideoEncoder.isConfigSupported(config);
if (!support.supported) {
output.innerText = 'WebCodecs vp8 encoding is not supported in this browser.';
startButton.disabled = true;
return;
}
}
encoder.configure(config);
decoder.configure({ codec: 'vp8' });
let frameIndex = 0;
function encodeFrame() {
const color = frameIndex % 2 === 0 ? '#ff4500' : '#111111';
sourceCtx.fillStyle = color;
sourceCtx.fillRect(0, 0, width, height);
sourceCtx.fillStyle = '#ffffff';
sourceCtx.font = '20px Arial, sans-serif';
sourceCtx.fillText(`Frame ${frameIndex + 1}`, 10, 30);
const frame = new VideoFrame(sourceCanvas, { timestamp: frameIndex * 33333 });
encoder.encode(frame);
frame.close();
frameIndex += 1;
if (frameIndex < 30) {
requestAnimationFrame(encodeFrame);
} else {
output.innerText = 'Demo complete. WebCodecs encode/decode ran successfully.';
}
}
startButton.addEventListener('click', () => {
startButton.disabled = true;
output.innerText = 'Running WebCodecs demo...';
encodeFrame();
});
}
document.addEventListener('DOMContentLoaded', initializeVideo);
</script>
</body>
</html>
References:
- Ghost Rider: Spirit of Vengeance (2011):
- WebCodecs API:
Praise Cage! Embark on this coding adventure and create an interactive media experience that leverages the WebCodecs API to handle high-performance media, inspired by the intense and fiery world of Ghost Rider: Spirit of Vengeance.