VTT Generator

Generates VTT files for a video using FFMPEG and Azure Cognitive Services.

Requirements

• ffmpeg
  • Linux, use your package manager
  • Mac, can use brew
  • Windows, can use chocolatey
• pip3 install ffmpeg-python
• pip3 install azure-cognitiveservices-speech
• Azure Cognitive Services Speech

Copy config.example.yml to config.yml and fill with your Azure Information:

key: azurekey
region: azureregion

Run

./vtt-gen.py --input path/to/video --output path/to/subtiles.vtt

VTT file tested with VLC and GNOME Videos

Validate

• Generation is automatic, so please proofread the output
• Check the file output is valid using Live WebVTT Validator

WebVTT Documentation

The output of this script is very basic, but can be customized, please see the following links for working with the vtt file.

• MDN WebVTT
• W3 WebVTT

Video Services Caption Files

Links to web pages for helping upload caption files:

• Vimeo
• YouTube
• Facebook - Requires SRT file, can use amorvincitomnia/vtt-to-srt.py or another tool