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Transcoderr

Docker Cloud Build Status

A transcoding pipeline designed to normalise file types into a common filetype. Dynamically configurable using plugins allowing highly customisable pipelines to be built.

Installation

  1. Install docker.
  2. Start this servie in docker. You can use a command similar to docker run -p 4300:4300/tcp --name transcoderr -v ./config:/config -ti drkno/transcoderr:latest
  3. Install plugins into the plugins directory.
  4. Configure webhooks in Sonarr (/api/v1/sonarr), Radarr (/api/v1/radarr) or otherwise (/api/v1/manual). See below for more details.

Webhook APIs

API Description
/api/v1/sonarr A webhook POST API for Sonarr, which should be called when a download completes.
/api/v1/radarr A webhook POST API for Radarr, which should be called when a download completes.
/api/v1/manual A webhook POST API for external/other consumers of Transcoderr. Accepts a JSON array of file paths, e.g. ["myfile.mkv"].

Building Plugins

Plugin Types

There are two different types of plugins supported by Transcoderr: directory and file. File plugins must be self contained, directory plugins are node modules.

File Plugins

File plugins are individual .js files. Each plugin must contain a describe method similar to the following:

describe() {
    return {
        name: 'name-of-my-plugin',
        description: 'A description of the plugin',
        version: '1.0.0',
        types: ['filter'] // see plugin types below
    };
}

For example plugins, see the built in plugins at src/backend/plugins.

Directory Plugins

Directory plugins are self-contained node modules. They can consist of multiple files and can have dependencies in a node_modules directory. Each of these must be placed within their own folder in the plugins directory.

Each plugin must have a package.json consisting at minimum of the following:

{
    "name": "name-of-my-plugin",
    "description": "A description of the plugin",
    "version": "1.0.0",
    "types": ["filter"],
    "main": "index.js"
}

Transcoder Pipeline

Transcoderr works in a pipeline, similar to GPU processing. The following are each of the types/stages of the pipeline.

Type Description
meta Performs analysis on the files
pre Generates transcoder options
filter Filters options and files
exec Runs transcode operations
post Performs post-execution analysis

Each plugin at each stage of the pipeline must expose an asynchronous method named after the type with 'main' as a suffix. E.g for the 'meta' stage of the pipeline, the plugin must expose a method with the signature:

async metamain(collector) {}

Collectors are passed to each main method and represent a way to get and pass state between each stage of the pipeline. Individual stages have different collectors, see src/backend/model/collector for a list of collectors and what each expose.

Loading / Updating Plugins

The plugins directory is monitored by Transcoderr, plugins will automatically be loaded/reloaded/unloaded when changes are detected.

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