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@mistic100
Created September 15, 2018 09:01
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Download video from Vimeo (chopped m4s files)
// 1. Open the browser developper console on the network tab
// 2. Start the video
// 3. In the dev tab, locate the load of the "master.json" file, copy its full URL
// 4. Run: node vimeo-downloader.js "<URL>"
// 5. Combine the m4v and m4a files with mkvmerge
const fs = require('fs');
const url = require('url');
const https = require('https');
let masterUrl = process.argv[2];
if (!masterUrl.endsWith('?base64_init=1')) {
masterUrl+= '?base64_init=1';
}
getJson(masterUrl, (err, json) => {
if (err) {
throw err;
}
const videoData = json.video.pop();
const audioData = json.audio.pop();
const videoBaseUrl = url.resolve(url.resolve(masterUrl, json.base_url), videoData.base_url);
const audioBaseUrl = url.resolve(url.resolve(masterUrl, json.base_url), audioData.base_url);
processFile('video', videoBaseUrl, videoData.init_segment, videoData.segments, json.clip_id + '.m4v', (err) => {
if (err) {
throw err;
}
processFile('audio', audioBaseUrl, audioData.init_segment, audioData.segments, json.clip_id + '.m4a', (err) => {
if (err) {
throw err;
}
});
});
});
function processFile(type, baseUrl, initData, segments, filename, cb) {
if (fs.existsSync(filename)) {
console.log(`${type} already exists`);
return cb();
}
const segmentsUrl = segments.map((seg) => baseUrl + seg.url);
const initBuffer = Buffer.from(initData, 'base64');
fs.writeFileSync(filename, initBuffer);
const output = fs.createWriteStream(filename, {flags: 'a'});
combineSegments(type, 0, segmentsUrl, output, (err) => {
if (err) {
return cb(err);
}
output.end();
cb();
});
}
function combineSegments(type, i, segmentsUrl, output, cb) {
if (i >= segmentsUrl.length) {
console.log(`${type} done`);
return cb();
}
console.log(`Download ${type} segment ${i}`);
https.get(segmentsUrl[i], (res) => {
res.on('data', (d) => output.write(d));
res.on('end', () => combineSegments(type, i+1, segmentsUrl, output, cb));
}).on('error', (e) => {
cb(e);
});
}
function getJson(url, cb) {
let data = '';
https.get(url, (res) => {
res.on('data', (d) => data+= d);
res.on('end', () => cb(null, JSON.parse(data)));
}).on('error', (e) => {
cb(e);
});
}
@abdus
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abdus commented Jan 1, 2021

Easier, if you have youtube-dl installed:

  1. copy the master.json URL
  2. replace .json?base64_init=1 with .mpd
  3. provide it to youtube-dl: youtube-dl EDITED_URL

yt-dl will download the best quality available :)

@Attosius
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Attosius commented Jan 1, 2021

Easier, if you have youtube-dl installed:

  1. copy the master.json URL
  2. replace .json?base64_init=1 with .mpd
  3. provide it to youtube-dl: youtube-dl EDITED_URL

yt-dl will download the best quality available :)

It's amazing! And just add ffmpeg.exe for automerge mp4 and m4a

@aik099
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aik099 commented Jan 2, 2021

@abdus, thanks. I have no idea, that Vimeo has URL to the Manifest file, that Youtube-DL can understand.

@p-try
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p-try commented Mar 1, 2021

You are a hero Sir, thank you SO much. The script works.

@pmayur
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pmayur commented Oct 13, 2021

this is amazing, thanks for this script

@anggapw
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anggapw commented Feb 26, 2022

@abdus I have successfully downloaded the video. But why is there no sound?

WARNING: [generic] Falling back on generic information extractor.
[generic] master: Downloading webpage
[generic] master: Extracting information
[info] master: Downloading 1 format(s): video-cf3328cc+audio-4a1f853e
[dashsegments] Total fragments: 27
[download] Destination: master [master].fvideo-cf3328cc.mp4
[download] 100% of 39.83MiB in 00:24
ERROR: unable to download video data: HTTP Error 403: Forbidden

@Tusko
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Tusko commented Mar 7, 2022

@ajay-ghub
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ajay-ghub commented Mar 23, 2022

Easier, if you have youtube-dl installed:

1. copy the `master.json` URL

2. replace `.json?base64_init=1` with `.mpd`

3. provide it to `youtube-dl`: `youtube-dl EDITED_URL`

yt-dl will download the best quality available :)

If you have the Vimeo Video ID with you (which was the case for me), you can also provide website URL and Video ID based URL to youtube-dl: youtube-dl --referer 'Website URL for Video Page' player.vimeo.com/video/<video-id>

This can save the effort of manually finding master.json URL.

@vaibhavbangwal
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How do I make this work for HTTP?

@DGrv
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DGrv commented Apr 1, 2022

Easier, if you have youtube-dl installed:

  1. copy the master.json URL
  2. replace .json?base64_init=1 with .mpd
  3. provide it to youtube-dl: youtube-dl EDITED_URL

yt-dl will download the best quality available :)

It's amazing! And just add ffmpeg.exe for automerge mp4 and m4a

This works as well like a charm :)

@koma-xrd
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thanks

Easier, if you have youtube-dl installed:

  1. copy the master.json URL
  2. replace .json?base64_init=1 with .mpd
  3. provide it to youtube-dl: youtube-dl EDITED_URL

yt-dl will download the best quality available :)

It's amazing! And just add ffmpeg.exe for automerge mp4 and m4a

thanks for the ffmpeg-hint

@kevinaso
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Hi folks, not a very experienced one. Where am Im supposed to input the master.json url? Also it will work just running the script in visual studio code or is it necessary to set up a project in a dedicated IDE?

@aik099
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aik099 commented Jul 13, 2022

Hi folks, not a very experienced one. Where am Im supposed to input the master.json url? Also it will work just running the script in visual studio code or is it necessary to set up a project in a dedicated IDE?

In the Terminal.

@pencilcheck
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pencilcheck commented Aug 13, 2023

youtube-dl....

This works! I just need to run
ffmpeg -i video_file -i audio_file -c:v copy -c:a copy out_file.mp4 to merge the files after the download then it is a proper mp4 with audio!!

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