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Clean up browser examples

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This commit is contained in:
Jerome Wu 2023-07-23 22:58:36 +08:00
parent 5f48200442
commit 93cf474b9e
4 changed files with 36 additions and 154 deletions
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45
apps/browser/concatDemuxer.html
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@ -1,20 +1,8 @@
<html> <html>
<head> <head>
<script src="/dist/ffmpeg.dev.js"></script> <link rel="stylesheet" href="style.css">
<style> <script src="../../packages/ffmpeg/dist/umd/ffmpeg.js"></script>
html, <script src="../../packages/util/dist/umd/index.js"></script>
body {
margin: 0;
width: 100%;
height: 100%;
}
body {
display: flex;
flex-direction: column;
align-items: center;
}
</style>
</head> </head>
<body> <body>
@ -23,24 +11,35 @@
<input type="file" id="uploader" multiple /> <input type="file" id="uploader" multiple />
<p id="message"></p> <p id="message"></p>
<script> <script>
const { createFFmpeg, fetchFile } = FFmpeg; const { fetchFile } = FFmpegUtil;
const ffmpeg = createFFmpeg({ log: true }); const { FFmpeg } = FFmpegWASM;
let ffmpeg = null;
const transcode = async ({ target: { files } }) => { const transcode = async ({ target: { files } }) => {
const message = document.getElementById("message"); const message = document.getElementById("message");
message.innerHTML = "Loading ffmpeg-core.js"; if (ffmpeg === null) {
await ffmpeg.load(); ffmpeg = new FFmpeg();
ffmpeg.on("log", ({ message }) => {
console.log(message);
})
ffmpeg.on("progress", ({ progress }) => {
message.innerHTML = `${progress * 100} %`;
});
await ffmpeg.load({
coreURL: "/packages/core/dist/umd/ffmpeg-core.js",
});
}
message.innerHTML = "Start Concating"; message.innerHTML = "Start Concating";
const inputPaths = []; const inputPaths = [];
for (const file of files) { for (const file of files) {
const { name } = file; const { name } = file;
ffmpeg.FS('writeFile', name, await fetchFile(file)); ffmpeg.writeFile(name, await fetchFile(file));
inputPaths.push(`file ${name}`); inputPaths.push(`file ${name}`);
} }
ffmpeg.FS('writeFile', 'concat_list.txt', inputPaths.join('\n')); await ffmpeg.writeFile('concat_list.txt', inputPaths.join('\n'));
await ffmpeg.run('-f', 'concat', '-safe', '0', '-i', 'concat_list.txt', 'output.mp4'); await ffmpeg.exec(['-f', 'concat', '-safe', '0', '-i', 'concat_list.txt', 'output.mp4']);
message.innerHTML = "Complete Concating"; message.innerHTML = "Complete Concating";
const data = ffmpeg.FS('readFile', 'output.mp4'); const data = await ffmpeg.readFile('output.mp4');
const video = document.getElementById("output-video"); const video = document.getElementById("output-video");
video.src = URL.createObjectURL( video.src = URL.createObjectURL(
new Blob([data.buffer], { new Blob([data.buffer], {

53
apps/browser/image2video.html
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@ -1,53 +0,0 @@
<html>
<head>
<script src="/dist/ffmpeg.dev.js"></script>
<style>
html, body {
margin: 0;
width: 100%;
height: 100%
}
body {
display: flex;
flex-direction: column;
align-items: center;
}
</style>
</head>
<body>
<h3>Click start to transcode images to mp4 (x264) and play!</h3>
<video id="output-video" controls></video><br/>
<button id="start-btn">Start</button>
<p id="message"></p>
<a href="https://github.com/ffmpegjs/ffmpeg.js/tree/master/examples/assets/triangle">Data Set</a>
<script>
const { createFFmpeg, fetchFile } = FFmpeg;
const ffmpeg = createFFmpeg({ log: true });
const image2video = async () => {
const message = document.getElementById('message');
message.innerHTML = 'Loading ffmpeg-core.js';
await ffmpeg.load();
message.innerHTML = 'Loading data';
ffmpeg.FS('writeFile', 'audio.ogg', await fetchFile('../assets/triangle/audio.ogg'));
for (let i = 0; i < 60; i += 1) {
const num = `00${i}`.slice(-3);
ffmpeg.FS('writeFile', `tmp.${num}.png`, await fetchFile(`../assets/triangle/tmp.${num}.png`));
}
message.innerHTML = 'Start transcoding';
await ffmpeg.run('-framerate', '30', '-pattern_type', 'glob', '-i', '*.png', '-i', 'audio.ogg', '-c:a', 'copy', '-shortest', '-c:v', 'libx264', '-pix_fmt', 'yuv420p', 'out.mp4');
const data = ffmpeg.FS('readFile', 'out.mp4');
ffmpeg.FS('unlink', 'audio.ogg')
for (let i = 0; i < 60; i += 1) {
const num = `00${i}`.slice(-3);
ffmpeg.FS('unlink', `tmp.${num}.png`);
}
const video = document.getElementById('output-video');
video.src = URL.createObjectURL(new Blob([data.buffer], { type: 'video/mp4' }));
}
const elm = document.getElementById('start-btn');
elm.addEventListener('click', image2video);
</script>
</body>
</html>

20
apps/browser/trim.html
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@ -11,21 +11,29 @@
<p id="message"></p> <p id="message"></p>
<script> <script>
const { fetchFile } = FFmpegUtil; const { fetchFile } = FFmpegUtil;
const { FFmpeg } = FFmpegWASM;
let ffmpeg = null; let ffmpeg = null;
const trim = async ({ target: { files } }) => { const trim = async ({ target: { files } }) => {
const message = document.getElementById('message'); const message = document.getElementById('message');
if (ffmpeg === null) { if (ffmpeg === null) {
ffmpeg = await createFFmpeg(); ffmpeg = new FFmpeg();
ffmpeg.setProgress((progress) => { console.log(progress * 100) }); ffmpeg.on("log", ({ message }) => {
console.log(message);
})
ffmpeg.on("progress", ({ progress }) => {
message.innerHTML = `${progress * 100} %`;
});
await ffmpeg.load({
coreURL: "/packages/core/dist/umd/ffmpeg-core.js",
});
} }
const { name } = files[0]; const { name } = files[0];
message.innerHTML = 'Loading ffmpeg-core.js'; await ffmpeg.writeFile(name, await fetchFile(files[0]));
message.innerHTML = 'Start trimming'; message.innerHTML = 'Start trimming';
ffmpeg.FS.writeFile(name, await fetchFile(files[0])); await ffmpeg.exec(['-i', name, '-ss', '0', '-to', '1', 'output.mp4']);
await ffmpeg.exec('-i', name, '-ss', '0', '-to', '1', 'output.mp4');
message.innerHTML = 'Complete trimming'; message.innerHTML = 'Complete trimming';
const data = ffmpeg.FS.readFile('output.mp4'); const data = await ffmpeg.readFile('output.mp4');
const video = document.getElementById('output-video'); const video = document.getElementById('output-video');
video.src = URL.createObjectURL(new Blob([data.buffer], { type: 'video/mp4' })); video.src = URL.createObjectURL(new Blob([data.buffer], { type: 'video/mp4' }));

72
apps/browser/webcam.html
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@ -1,72 +0,0 @@
<html>
<head>
<script src="/dist/ffmpeg.dev.js"></script>
<style>
html, body {
margin: 0;
width: 100%;
height: 100%
}
body {
display: flex;
flex-direction: column;
align-items: center;
}
</style>
</head>
<body>
<h3>Record video from webcam and transcode to mp4 (x264) and play!</h3>
<div>
<video id="webcam" width="320px" height="180px"></video>
<video id="output-video" width="320px" height="180px" controls></video>
</div>
<button id="record" disabled>Start Recording</button>
<p id="message"></p>
<script>
const { createFFmpeg, fetchFile } = FFmpeg;
const ffmpeg = createFFmpeg({ log: true });
const webcam = document.getElementById('webcam');
const recordBtn = document.getElementById('record');
const startRecording = () => {
const rec = new MediaRecorder(webcam.srcObject);
const chunks = [];
recordBtn.textContent = 'Stop Recording';
recordBtn.onclick = () => {
rec.stop();
recordBtn.textContent = 'Start Recording';
recordBtn.onclick = startRecording;
}
rec.ondataavailable = e => chunks.push(e.data);
rec.onstop = async () => {
transcode(new Uint8Array(await (new Blob(chunks)).arrayBuffer()));
};
rec.start();
};
(async () => {
webcam.srcObject = await navigator.mediaDevices.getUserMedia({ video: true, audio: true });
await webcam.play();
recordBtn.disabled = false;
recordBtn.onclick = startRecording;
})();
const transcode = async (webcamData) => {
const message = document.getElementById('message');
const name = 'record.webm';
message.innerHTML = 'Loading ffmpeg-core.js';
await ffmpeg.load();
message.innerHTML = 'Start transcoding';
ffmpeg.FS('writeFile', name, await fetchFile(webcamData));
await ffmpeg.run('-i', name, 'output.mp4');
message.innerHTML = 'Complete transcoding';
const data = ffmpeg.FS('readFile', 'output.mp4');
const video = document.getElementById('output-video');
video.src = URL.createObjectURL(new Blob([data.buffer], { type: 'video/mp4' }));
}
</script>
</body>
</html>