#subtitle #automatic #wrapper #character-set #align #alignment #frame-rate

alass-util

A Rust convenience API for subtitle synchronization with alass-core

5 unstable releases

0.3.0 Apr 17, 2022
0.1.2 Feb 29, 2020
0.1.1 Feb 29, 2020
0.1.0 Feb 29, 2020
0.0.0 Feb 26, 2020

#6 in #align


Used in alass-ffi

GPL-3.0 license

660KB
784 lines

alass-util

Crates.io documentation Build minimum rustc 1.40 License

A Rust convenience API for subtitle synchronization with alass-core

alass-core is a fantastic library which performs fast and accurate subtitle synchronization. alass-util is a wrapper library that provides various facilities to make integrating subtitle synchronization into your Rust program easier. Such facilities include:

  • Loading and saving subtitle files
  • Processing audio for voice activity using the webrtc-vad crate
  • Converting voice activity to reference timespans
  • Automatic subtitle character set detection
  • Saving and loading of reference timespans to disk
  • Experimental support for automatic framerate correction
  • Experimental support for "cleaning" voice activity data

What this crate does not provide:

  • Facilities for extracting and resampling audio streams from media files

Docs

See docs.rs for API details.

Voice Activity Detector

This crate provides two options for voice activity detection:

  1. WebRTC VAD: The default detector used by this crate. Fast but lower quality results. See vad-webrtc Cargo feature.
  2. Silero: LSTM model with much better results but longer processing time. See the vad-silero-tract or vad-silero-onnx runtime depending on your choice of ONNX runtime.

FFI

Not using Rust? See the alass-ffi companion crate for C bindings.

License

Everything in this repo is GPL-3.0 unless otherwise specified

Dependencies

~14–25MB
~447K SLoC