# Encode blur-out effect into video file

You can encode some spectacular effects in your video files using[🤖/video/encode](/docs/robots/video-encode.md). In particular, using our `ffmpeg` parameter, you can add special effects outside the bounds of our traditional API options. By doing so, we're going to show how you can create a blur-out fade effect.

First, let's encode our video with our `ipad-high` preset. This will bring numerous encoding properties to our video file such as bitrates and codecs used. For the full list of properties brought over by our presets, please check out our [Preset documentation](/docs/presets/video.md).

Because using presets brings over a series of properties, which work in part with FFmpeg, if you attempt to add [FFmpeg⁠](https://ffmpeg.org/ffmpeg-filters.html)'s `filter_complex` filter, your assembly will result in an error due to conflicting filters. To bypass this, we simply pass our first step to a second step, with a `preset` value of "empty".

Now with all that out of the way, we can look at how our desired effect is achieved. The general idea is that we use `filter_complex`'s ability to take multiple effects and pipe them into one another. Using this premise, we will need to use the `split` filter to break our input video into two layers, base, and blurred. We create our stream with a blurred effect using the `boxblur` filter which gives three ways to tune our blurred stream: `luma` - controls brightness, `chroma` - controls color, and `alpha` - controls transparency. Then we add in our fade effect, using the `overlay`filter to layer the two effects on top of each other as the blurred effect is being faded in.

We hope this has been a good showcase of just how powerful FFmpeg can be in upping your encoding game. Happy Transcoding!

Step 1

### Handle uploads

We can handle uploads of your users directly. [Learn more ›](/services/handling-uploads.md)

[big-buck-bunny-5s.mp4](https://demos.transloadit.com/56/703fc29bcb4845b55675c6fe330bd8/big-buck-bunny-5s.mp4)

Video · 998 KB · 5s · 1024 × 768

```
":original": {
  "robot": "/upload/handle"
}
```

🤖 [/upload/handle](/docs/robots/upload-handle.md)

This bot receives uploads that your users throw at you from browser or apps, or that you throw at us programmatically

Step 2

### Transcode, resize, or watermark videos

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 ›](/services/video-encoding.md)

[big-buck-bunny-5s.mp4](https://demos.transloadit.com/ec/c696a030da47618e780db40da11549/big-buck-bunny-5s.mp4)

Video · 832 KB · 5s · 1024 × 768

```
"encode": {
  "use": ":original",
  "robot": "/video/encode",
  "result": true,
  "ffmpeg_stack": "v7",
  "preset": "ipad-high",
  "turbo": true
}
```

🤖 [/video/encode](/docs/robots/video-encode.md)

This bot encodes, resizes, applies watermarks to videos and animated GIFs

Step 3

### Transcode, resize, or watermark videos

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 ›](/services/video-encoding.md)

[big-buck-bunny-5s.mp4](https://demos.transloadit.com/a4/3cb47b43754a1f8adcb3047d657178/big-buck-bunny-5s.mp4)

Video · 510 KB · 5s · 1024 × 768

```
"blur-fade": {
  "use": "encode",
  "robot": "/video/encode",
  "result": true,
  "ffmpeg": {
    "filter_complex": "[0:v]split=2[base][blurred], [blurred]boxblur=luma_radius=50:chroma_radius=25:luma_power=1[blurred], [blurred]fade=type=in:start_time=3:duration=2:alpha=1[blurred-with-fadein], [base][blurred-with-fadein]overlay[blurout]",
    "map": "[blurout]"
  },
  "ffmpeg_stack": "v7",
  "preset": "empty",
  "turbo": true
}
```

🤖 [/video/encode](/docs/robots/video-encode.md)

This bot encodes, resizes, applies watermarks to videos and animated GIFs

Step 4

### Export files to Amazon S3

We export to the storage platform of your choice. [Learn more ›](/services/file-exporting.md)

`:original`

* [https://demos.transloadit.com/56/703fc29bcb4845b55675c6fe330bd8/big-buck-bunny-5s.mp4⁠](https://demos.transloadit.com/56/703fc29bcb4845b55675c6fe330bd8/big-buck-bunny-5s.mp4)

`encode`

* [https://demos.transloadit.com/ec/c696a030da47618e780db40da11549/big-buck-bunny-5s.mp4⁠](https://demos.transloadit.com/ec/c696a030da47618e780db40da11549/big-buck-bunny-5s.mp4)

`blur-fade`

* [https://demos.transloadit.com/a4/3cb47b43754a1f8adcb3047d657178/big-buck-bunny-5s.mp4⁠](https://demos.transloadit.com/a4/3cb47b43754a1f8adcb3047d657178/big-buck-bunny-5s.mp4)

```
"exported": {
  "use": [
    ":original",
    "encode",
    "blur-fade"
  ],
  "robot": "/s3/store",
  "credentials": "demo_s3_credentials",
  "url_prefix": "https://demos.transloadit.com/"
}
```

🤖 [/s3/store](/docs/robots/s3-store.md)

This bot exports encoding results to Amazon S3

## Live Demo. See for yourself

Loading Uppy demo…

This live demo is powered by [Uppy⁠](https://uppy.io/docs/guides/uppy-transloadit/), our open source file uploader that you can also use without Transloadit, and [tus⁠](https://tus.io), our open protocol for resumable file uploads that is making uploading more reliable across the world.

## 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: {
            ':original': {
              robot: '/upload/handle',
            },
            encode: {
              use: ':original',
              robot: '/video/encode',
              result: true,
              ffmpeg_stack: 'v7',
              preset: 'ipad-high',
              turbo: true,
            },
            'blur-fade': {
              use: 'encode',
              robot: '/video/encode',
              result: true,
              ffmpeg: {
                filter_complex: '[0:v]split=2[base][blurred], [blurred]boxblur=luma_radius=50:chroma_radius=25:luma_power=1[blurred], [blurred]fade=type=in:start_time=3:duration=2:alpha=1[blurred-with-fadein], [base][blurred-with-fadein]overlay[blurout]',
                map: '[blurout]',
              },
              ffmpeg_stack: 'v7',
              preset: 'empty',
              turbo: true,
            },
            exported: {
              use: [':original', 'encode', 'blur-fade'],
              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](/docs/sdks/uppy.md)

## 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.

#### Bulk imports

Add one of our [import Robots](/services/file-importing.md) to acquire and transcode massive media libraries.

#### Handling uploads

We are *the* experts at reliably [handling uploads](/services/handling-uploads.md). We wrote the [protocol⁠](https://tus.io/) for it.

#### Front-end integration

We integrate with web browsers via our next-gen file uploader [Uppy⁠](https://uppy.io/docs/guides/uppy-transloadit/) and SDKs for Android and iOS.

#### Back-end integration

Send us batch jobs in any server language using one of our [SDKs](/docs/sdks.md) or directly interfacing with our [REST API](/docs/api.md).

#### Pingbacks

Configure a [notify\_url](/services/content-delivery.md) to let your server receive transcoding results JSON in the `transloadit` POST field.

#### On-demand

Use our [Smart CDN](/services/file-importing.md) to adapt files on-demand and stream them directly to your users.

[Browsers](/docs/sdks/uppy.md)[TransloaditKit](/docs/sdks/transloaditkit.md)[Ruby SDK](/docs/sdks/ruby-sdk.md)[HTTP REST API](/docs/api.md)[Python SDK](/docs/sdks/python-sdk.md)[PHP SDK](/docs/sdks/php-sdk.md)[Node.js SDK](/docs/sdks/node-sdk.md)[Java SDK](/docs/sdks/java-sdk.md)[Go SDK](/docs/sdks/go-sdk.md)[cURL](/docs/sdks/curl.md)[Convex](/docs/sdks/convex.md)

[Browsers](/docs/sdks/uppy.md)[TransloaditKit](/docs/sdks/transloaditkit.md)[Ruby SDK](/docs/sdks/ruby-sdk.md)[HTTP REST API](/docs/api.md)[Python SDK](/docs/sdks/python-sdk.md)[PHP SDK](/docs/sdks/php-sdk.md)[Node.js SDK](/docs/sdks/node-sdk.md)[Java SDK](/docs/sdks/java-sdk.md)[Go SDK](/docs/sdks/go-sdk.md)[cURL](/docs/sdks/curl.md)[Convex](/docs/sdks/convex.md)

[Browsers](/docs/sdks/uppy.md)[TransloaditKit](/docs/sdks/transloaditkit.md)[Ruby SDK](/docs/sdks/ruby-sdk.md)[HTTP REST API](/docs/api.md)[Python SDK](/docs/sdks/python-sdk.md)[PHP SDK](/docs/sdks/php-sdk.md)[Node.js SDK](/docs/sdks/node-sdk.md)[Java SDK](/docs/sdks/java-sdk.md)[Go SDK](/docs/sdks/go-sdk.md)[cURL](/docs/sdks/curl.md)[Convex](/docs/sdks/convex.md)

## Other cool demos

* [View demo→Video EncodingAdd an audio track to video footage](/demos/video-encoding/add-audio-track-to-video-footage.md)
* [View demo→Video EncodingAdd an empty audio track to still video](/demos/video-encoding/add-empty-audio-track-to-still-video.md)
* [View demo→Document ProcessingAdd a header or footer to a PDF](/demos/document-processing/add-header-or-footer-to-pdf.md)

Try Transloadit

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