ungive/video-conversion-service

Small service to convert remote videos from one format to another.

For a real-world use case example try Music Presence and play a song with TIDAL that has an animated cover image.

Supported conversions

mp4 to gif

More to be added in the feature, if the need arises.

Features

• Authenticated token endpoint for use in private contexts and to prevent abuse
• Only converts videos from a known list of whitelisted server hostnames
• Conversion results are cached for a configurable amount of time
• Tokens expire after a configurable amount of time

For open todos for more features and improvements check TODO.md

API

The service exposes a very simple, authenticated HTTP API.

Creating a token

This endpoint creates a token which can be used to fetch the converted video. It accepts a URL to a remote video resource, the input format and the target output format and returns a temporary token which can be used with the /convert endpoint.

GET /token

Required headers:

• Authentication: Basic authentication with username and password

Required query parameters:

• url: The URL from which to fetch the video resource
• ifm: The input format of the this remote video resource
• ofm: The target output format to which to convert the video

Example request:

https://api.example.com/token?ifm=mp4&ofm=gif&url=https%3A%2F%2Fexample.com%2Fvideo.mp4

Successful response (status code 200):

{
  "url": "https://api.example.com/convert.gif?token=6lXiknBhnF1a7C3njKZDY3",
  "token": "6lXiknBhnF1a7C3njKZDY3",
  "expires": 1727727055,
  "key": {
    "url": "https://example.com/video.mp4",
    "ifm": "mp4",
    "ofm": "gif"
  }
}

Simply request the URL in the url field to fetch the converted video.

Error response:

{
  "statusCode": 500,
  "error": "Internal Server Error",
  "message": "information about what happened"
}

Fetching the converted video

This endpoint converts the resource for the given token to the target output format.

GET /convert[:ext]

Path parameters:

• :ext (optional): File extension to communicate the output format. This might be needed by consumers of the URl in some contexts (e.g. for the GIF to properly show in a Discord status). The extension must be identical to the output format ofm.

Required query parameters:

• token: The token from the /token endpoint

Example request:

https://api.example.com/convert.gif?token=6lXiknBhnF1a7C3njKZDY3

Response:

<binary>

The response contains the converted video in the requested output format.

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License

Copyright (c) 2024 Jonas van den Berg
MIT License, see LICENSE for details