tgs 0.1.0

A framework to work with lottie / tgs files

Telegram Animated Stickers Tools

Scripts

• bin/tgs2lottie.py Will extract a tgs file into a pretty printed JSON
• bin/lottie2tgs.py Will convert a lottie file into a tgs file
• bin/svg2tgs.pt Converts an SVG file into a lottie or tgs file
• bin/lottiecat.py Prints the given lottie file into a human-readable format
• bin/lottiediff.py SHows a side-by-side diff of the human-readable rendition of two lottie files

Installation

Synfig

There's a Synfig studio plugin to export telegram stickers. To install, just copy (or symlink) ./synfig/tgs-exporter into the synfig plugin directory.

Requirements

Python 3.

Reverse Engineering

I had to reverse engineer the format because Telegram couldn't be bothered providing the specs.

Seems a gzip compressed json, with a modified version of this format: https://github.com/airbnb/lottie-web/tree/master/docs/json

Making your own exporters converters

Lottie format

If you can get the source image into lottie format, that's 90% of the work done.

I've ripped the format schema into Python classes in lib/tgs.py which should output the correct json. Eg:

foo = tgs.Animation()
# ...
json.dump(foo.to_dict(), output_file)

TGS changes

Nothing major, just ensure the root JSON object has tgs: 1

Gzipping

The tgs file is the JSON described above compressed into a gzip, and renamed to .tgs

License

AGPLv3+ https://www.gnu.org/licenses/agpl-3.0.en.html

Credits

Copyright 2019 (C) Mattia Basaglia