# Autosubsync

## Description
Autosubsync is a cli tool for syncing subtitles to video files. Currently this project is in Beta.

See below for usage instructions.

### Prerequisites
- FFmpeg installed. Installable via package manager on most Linux distributions. On Windows see: https://ffmpeg.zeranoe.com/builds/. FFmpeg has to be on the system path! 
- You need an Google Speech API key for this tool. Check this quickstart how to set this up:
https://cloud.google.com/speech-to-text/docs/quickstart-client-libraries

### Google Speech API key file
You can provide the Google Speech API key file via the standard environment variable:

GOOGLE_APPLICATION_CREDENTIALS=config/speech_auth.json

Or you can pass it as an commandline variable, for example:

--keyfile=config/speech_auth.json (See below)

### Installation

You can install autosubsync with:

npm install autosubsync -g

If you get errors about permissions on Linux based OS's:

npm install autosubsync -g --unsafe-perm

### Commandline options

```commandline
autosubsync <videoFile> [srtFile]

Synchronize subtitles with video file.

Positionals:
  videoFile  Video file. Can also be a glob, like: dir/video*.mkv
  srtFile    SRT file. If not specified it tries to search for SRT files next to
             the video file.

Options:
  --version                      Show version number                   [boolean]
  --runCount, -r                 Number of runs with different positions in the
                                 video file to try matching subtitles
                                                           [number] [default: 1]
  --seekPercentage, -s           Seek percentage (0.00 - 1.00) in video file to
                                 start matching            [number] [default: 0]
  --duration, -d                 Max duration of syncing in seconds
                                                          [number] [default: 60]
  --minWordMatchCount, -c        Minimum words to match    [number] [default: 4]
  --matchTreshold, -t            Treshold percentage for matching sentences in
                                 range 0.00 - 1.00       [number] [default: 0.8]
  --overwrite, -o                Overwrite original subtitle file
                                                      [boolean] [default: false]
  --postfix, -p                  Postfix used to name synced subtitles, for
                                 example: xxx.en.<postfix>.srt
                                                    [string] [default: "synced"]
  --verbose, -v                  Enable verbose logging
                                                      [boolean] [default: false]
  --logLevel, --log              Set log level        [string] [default: "info"]
  --dryRun, --dr                 Disable writing to file
                                                      [boolean] [default: false]
  --language, -l                 Override SRT file language, otherwise
                                 auto-detect from filename
                                                        [string] [default: "en"]
  --speechApiKeyFile, --keyfile  Google speech API key file             [string]
  --help                         Show help                             [boolean]
  --config                       Path to JSON config file
```