Take a scrolling screenshot of a website automatically (by using a URL)

Transloadit can take a scrolling screenshot of any website or HTML file. In this demo below we let 🤖/html/convert take a PNG screenshot from the Uppy website.

We then feed this screenshot into 🤖/video/merge, and use the scroll FFmpeg parameter to automatically generate a video that slowly pans down the screenshot we took.

To achieve this effect we use the scroll filter, to animate the image moving down. The value of v determines how fast the image will scroll. After this, we use the crop filter to define the size of our "viewbox".

Step 1:

Take screenshots of webpages or HTML files

We can process your documents in an automated way, saving you costly resources.Learn more

tus-io.png

Image – 285 KB

1024 × 3000

"screenshot": {
  "robot": "/html/convert",
  "result": true,
  "format": "png",
  "fullpage": false,
  "height": 3000,
  "url": "https://tus.io/",
  "width": 1024
}

/html/convert

This bot takes screenshots of web pages or uploaded HTML pages

Step 2:

Merge video, audio, images into one video

We offer a variety of video encoding features like optimizing for different devices, merging, injecting ads, changing audio tracks, or adding company logos.Learn more

tus-io.mp4

Video – 433 KB

20s · 1024 × 720

"scroll": {
  "use": {
    "steps": [
      {
        "name": "screenshot",
        "as": "image"
      }
    ]
  },
  "robot": "/video/merge",
  "result": true,
  "duration": 20,
  "ffmpeg": {
    "r": 30,
    "vf": "scroll=v=0.001,crop=1024:720:0:0",
    "f": "mp4",
    "pix_fmt": "yuv420p"
  },
  "ffmpeg_stack": "v7",
  "preset": "empty"
}

/video/merge

This bot composes a new video by adding an audio track to existing still image(s) or video

Step 3:

Export files to Amazon S3

We export to the storage platform of your choice.Learn more

screenshot

https://demos.transloadit.com/8f/a1b5bd98ad49daa2ae9267cc5c417b/tus-io.png

scroll

https://demos.transloadit.com/84/ecacff02ad49d8a8fa6994dff94f7e/tus-io.mp4

"exported": {
  "use": [
    "screenshot",
    "scroll",
    ":original"
  ],
  "robot": "/s3/store",
  "credentials": "demo_s3_credentials",
  "url_prefix": "https://demos.transloadit.com/"
}

/s3/store

This bot exports encoding results to Amazon S3

Live Demo. See for yourself

Loading Uppy demo…

Build this in your own language

<!-- This pulls Uppy from our CDN -->
<!-- For smaller self-hosted bundles, install Uppy and plugins manually: -->
<!-- npm i --save @uppy/core @uppy/dashboard @uppy/remote-sources @uppy/transloadit ... -->
<link
  href="https://releases.transloadit.com/uppy/v3.10.0/uppy.min.css"
  rel="stylesheet"
/>
<button id="browse">Select Files</button>
<script type="module">
  import {
    Uppy,
    Dashboard,
    ImageEditor,
    RemoteSources,
    Transloadit,
  } from 'https://releases.transloadit.com/uppy/v3.10.0/uppy.min.mjs'
  const uppy = new Uppy()
    .use(Transloadit, {
      waitForEncoding: true,
      alwaysRunAssembly: true,
      assemblyOptions: {
        params: {
          // It's often better store encoding instructions in your account
          // and use a `template_id` instead of adding these steps inline
          steps: {
            screenshot: {
              robot: '/html/convert',
              result: true,
              format: 'png',
              fullpage: false,
              height: 3000,
              url: 'https://tus.io/',
              width: 1024,
            },
            scroll: {
              use: {
                steps: [{
                  name: 'screenshot',
                  as: 'image',
                }],
              },
              robot: '/video/merge',
              result: true,
              duration: 20,
              ffmpeg: {
                r: 30,
                vf: 'scroll=v=0.001,crop=1024:720:0:0',
                f: 'mp4',
                pix_fmt: 'yuv420p',
              },
              ffmpeg_stack: 'v7',
              preset: 'empty',
            },
            exported: {
              use: ['screenshot', 'scroll', ':original'],
              robot: '/s3/store',
              credentials: 'demo_s3_credentials',
              url_prefix: 'https://demos.transloadit.com/',
            },
          },
        },
      },
    })
    .use(Dashboard, { trigger: '#browse' })
    .use(ImageEditor, { target: Dashboard })
    .use(RemoteSources, {
      companionUrl: 'https://api2.transloadit.com/companion',
    })
    .on('complete', ({ transloadit }) => {
      // Due to `waitForEncoding:true` this is fired after encoding is done.
      // Alternatively, set `waitForEncoding` to `false` and provide a `notify_url`
      console.log(transloadit) // Array of Assembly Statuses
      for (const assembly of transloadit) {
        console.log(assembly.results) // Array of all encoding results
      }
    })
    .on('error', (error) => {
      console.error(error)
    })
</script>

Read docs: Browsers

So many ways to integrate

Transloadit is a service for companies with developers. And there are many ways developers can put Transloadit to good use inside your company to automate media processing.