> ## Documentation Index
> Fetch the complete documentation index at: https://docs.livepeer.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Configure Transcoding Options

> To better control your encoding profiles it is recommended to use a json file to specify the resolution and bitrate for your encoding ladder.

# Create the JSON file

Use the following as a template for your json file

```
[
{
  "name": "480p0",
  "fps": 0,
  "bitrate": 1600000,
  "width": 854,
  "height": 480,
  "profile": "h264constrainedhigh",
  "gop": "1"
},
{
  "name": "720p0",
  "fps": 0,
  "bitrate": 3000000,
  "width": 1280,
  "height": 720,
  "profile": "h264constrainedhigh",
  "gop": "1"
},
{
  "name": "1080p0",
  "fps": 0,
  "bitrate": 6500000,
  "width": 1920,
  "height": 1080,
  "profile": "h264constrainedhigh",
  "gop": "1"
}
]
```

## Modify Docker Config

Create the transcodingOptions.json file using the above template.

```
nano -p /var/lib/docker/volumes/gateway-lpData/_data/transcodingOptions.json
```

Modify the docker-compose.yml file from the root user's home directory */root/*
and add the following below `-pixelsPerUnit=1`

```
-transcodingOptions=/root/.lpData/transcodingOptions.json
```

## Modify Linux Config

Create the transcodingOptions.json file using the above template.

```
sudo nano /usr/local/bin/lptConfig/transcodingOptions.json
```

Modify the Linux Service file /etc/systemd/system/livepeer.service and add the
following below `-pixelsPerUnit=1`

```
-transcodingOptions=/usr/local/bin/lptConfig/transcodingOptions.json \
```

## Modify Windows Config

Create the transcodingOptions.json file using the above template.

Open notepad (or your text editor of choice) paste the template above and save
the transcodingOptions.json file in the following location.

**Note:** Replace **YOUR\_USER\_NAME** with your actual user name

```
C:\Users\YOUR_USER_NAME\.lpData\transcodingOptions.json
```

Modify Windows bat file to include the following command after
`-pixelsPerUnit=1`

```
-transcodingOptions=C:\Users\YOUR_USER_NAME\.lpData\transcodingOptions.json
```