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Subtitle Extractor

link

Dependencies

Required binaries

(Must be installed on local machine)

  • ccextractor
    • To extract closed caption
  • redis
    • Used as message broker for celery

Required pip modules

  • boto3
    • To connect with DynamoDB
  • celery
    • To offload task in background
  • django
  • djago-celery-results
    • To store the task results in django database
  • django-storages
    • To store files in remote server (AWS S3 in this case)
  • djangorestframework
    • To make REST API

Run on local machine

Install the required binaries Clone the repository and install required pip modules

git clone https://github.com/saurzv/subtitle-extractor.git
cd subtitle-extractor
python3 -m venv env
source env/bin/activate
pip install -r requirements.txt

Create a .env file with these values :

AWS_ACCESS_KEY_ID
AWS_SECRET_ACCESS_KEY
DJANGO_SECRET_KEY

Make migratations and run server

python3 manage.py makemigrations
python3 manage.py migrate
python3 manage.py runserver

In another terminal with same virtual enivronment, run celery

celery -A server worker -l info

Visit the site at http://127.0.0.1:8000/

commands are written with bash shell in mind

Further scope of improvements

  • Uploading large files can lead to the user being stuck on the homepage for a very long time. POST requests can be offloaded to celery in the background, and a waiting page can be shown with a polling API.
  • Progress bar for file upload.
  • Error pages can be implemented.
  • Option to download the extracted .srt file can be implemented.