bubblesub

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Simple extensible ASS subtitle editor for Linux

Features

• Python - easily extend it however you want
• Video preview
• Audio preview (spectrogram)
• Video band for quick assessment of scene boundaries
• Audio and video are synced at all times
• Spectrogram shows where subs start and end
• Slow playback support (with audio pitch correction)
• I can sub an entire episode without ever having to touch the mouse
• Mouse users are not excluded and can click their way to all the commands
• Robust plugin API (everything GUI is capable of can be done through the API)
• Simple architecture (Commands ↔ API ↔ GUI)
• Separate control for persistent inline comments (useful for translating)
• Newlines support in the editor
• Everything is aligned to video frames
• Style editor with realistic preview
• Vim mode in the text editor (off by default, requires neovim 0.4+)
• No bloat

Screenshot

Installation

• Install system dependencies
  • Python 3.9
  • libmpv
  • ffms
  • fftw (pip install cython first)
  • Qt5 bindings
• Clone the repository: git clone https://github.com/bubblesub/bubblesub
• Enter its directory: cd bubblesub
• Install bubblesub: pip install --user .
• Run bubblesub: python3 -m bubblesub or simply bubblesub

If you want to simplify bubblesub installation, look at our Dockerfile. You will find what dependencies are needed, how to install them and how to run our tests.

Documentation

Default hotkeys and commands

Please see this file.

API

For the API documentation, for now please consult the docstrings in the bubblesub.api module. In the future, if bubblesub experiences a boost in popularity, this might be improved.

Configuration and plugins

• $XDG_CONFIG_HOME/bubblesub/: contains user configuration
  • options.yaml: general options
  • hotkeys.conf: configurable user hotkeys
  • menu.conf: configurable additional user menus
• $XDG_CONFIG_HOME/bubblesub/scripts: contains user plugins (see example plugin)
• $XDG_CACHE_HOME/bubblesub/: used to cache time codes and such

Questions

1. I want to report a bug.

   Please use GitHub issues.

2. I want a feature.

   Chances are I'm too busy to work on features I don't personally need, so pull requests are strongly encouraged.

3. Why not aegisub?

   Because it doesn't cover my needs, it's too convoluted and its development is too slow.

4. Windows builds?

   You can find a Windows build for bubblesub here.
   I don't maintain it, so please contact the current developer if you find some issue.

5. Versioning? PyPI?

   I don't say no, maybe in the future, if the project gets more popular. For now, git master is the way to go.

Contact

Issue tracker: GitHub issues

Acknowledgments

I'd like to thank all contributors for the help on this project.
The lovely logo was donated by fri. Thanks :)