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Auto Subtitle - A tool to auto generate and translate subtitles from vidoes using Open AI's whisper and chatGPT

This is a repository to use open AI's whisper API and chatGPT for auto subtitle generation

Requirement

1. install ffmpeg

# on Ubuntu or Debian

sudo apt  update && sudo apt  install  ffmpeg

  

# on Arch Linux

sudo pacman  -S  ffmpeg

  

# on MacOS using Homebrew (https://brew.sh/)

brew install  ffmpeg

  

# on Windows using Chocolatey (https://chocolatey.org/)

choco install  ffmpeg

  

# on Windows using Scoop (https://scoop.sh/)

scoop install  ffmpeg

2. install requirement

pip3 install -r requirement.txt

3. install whisper

pip install git+https://github.com/openai/whisper.git

Performance

• Please be noted that it's a computationally heavy task so it will be quite slow if your hardware specs is low.
• The transcription performance is also not good on mac, most likely due to the ARM architecture is not very well supported by Whisper
• It works quite well on my desktop setup, CPU: xeon e5 2697 v3, RAM: 32GB, GPU: RTX3070 OS: ubuntu

How to generate subtitle for a video

For example, if you want to generate the subtitle for mx.mp4. you can use the script below

• -i input video file path
• -l input file langulage
• -o output SRT file path python3 transcript.py -i ./mx.mp4 -l Japanese -o mx.srt

How to translate subtitle for a video

For example, if you want to translate mx2.srt from Japanese to Chinese, you can use the followinig command. This will output the translated result to mx_cn.srt

• -i input SRT file path
• -il input file langulage
• -o output SRT file path
• -ol output SRT language
• -t chatGPT API token

python3 translate.py -i ./mx2.srt -il Japanese -o ./mx_cn.srt -ol Chinese -t <chatGPT API token>

How to merge the SRT file to the video

You can use the attached shell script to combine SRT and the video. Just use

./merge-srt-to-mp4.sh vidoe.mp4 subtitle.SRT