node-rawtherapee

Simple wrapper for rawtherapee-cli with Promises

Warning: rawtherapee-cli use all available core in your system to process images. Running multiple instances at the same time may bloat your server. It's recomanded to use a task manager and process them one-by-one.

Dependencies

Rawtherapee must be installed in the host system and rawtherapee-cli must be directly executable from the command-line.

Installaton

With npm:

npm i --save rawtherapee

With yarn

yarn add rawtherapee

Usage

Promise = rawtherapee(url | array targets [, object options])

• targets: files or directories
• options: simple options Object

Options

replace

default: false

Replace the existing output file.

allFormats

default: false

Process all raw and non raw formats, igroring GUI parameters.

presets

default: ['default']

An array of pp3 presets files.

Possible opions:

• 'default': use the default preset selected in GUI.
• 'sidecar': use the sidecar file of each image if available
• 'sidecar-strict': like 'sidecar, but return an error if there is no sidecar.
• <uri>: any pp3 file in your system

rawtherapee-cli always use the neutral presets as base, then apply presets in the order you passed it.

ignoreBadPreset

default: false

If set to false, any non-existing preset file passed to the presets parameter will throw an error.
If set to true, those files will be ignored (not passed to rawtherapi-cli) and print message in sterr if the DEBUG environment variable is set to any value.

output

default: '.'

File or directory where the processed files will be stored (directory must exists).

format

default: 'jpg'

Possibles options:

'jpg', 'png' or 'tiff'

depth

default: 8

Color depth of the output file. Only for TIFF and PNG formats.

Possibles options:

8 or 16

compression

default: 90

Only for JPG output formats (PNG compression is hardcoded at 6 in rawtherapi-cli)

subSampling

string or int

default:2

Possibles options:

• '4:2:2' or 1
• '4:2:0' or 2
• '4:4:4' or 3

zip

boolean

default: false

Use TIFF zip compression.

onChange

function default: () => {}

Callback function fired every time the status is updated (not using EventListeners) :

Return a simple object who always contains status, and maybe file or code.

Status can be :

• start: start running rawtherapee-cli.
• skipped: skip ignored file in a full directory process.
• processing: start processing file.
• complete: processing file completed.
• idle: rawtherapee-cli stop with code code.

Examples

const rawtherapee = require('rawtherapee')

rawtherapee('/somewhere/something.NEF')
  .then((files) => {
    console.log(files.length, 'files processed.')
  })

const fs = require('fs')
const rawtherapee = require('rawtherapee')

const output = '/tmp/img'

if (!fs.existsSync(output)) fs.mkdirSync(output)

const onChange = (state) => {
  switch (state.status) {
    case 'complete':
      console.log(state.file, 'process done.')
      break
    case 'skipped':
      console.log(state.file, 'have been ignored.')
      break
    default:
      console.log('Event', state.status, 'fired.', state)
  }
}

rawtherapee([
  '/somewhere/something.NEF',
  '/somewhereelse/somethingelse.NEF'
], {
  onChange,
  output,
  format: 'tiff',
  depth: 16,
  zip: true,
  preset: ['sidecar']
})
  .then((files) => console.log(files.length, 'files processed.'))