tannydobreva / serverless-subtitles

Serverless Subtitles can handle a video input, extract the sound, transcript it and generate different subtitle files for your video.

Serverless Subtitles

Serverless Subtitles is a demonstration project which allows you to prove the usage of several AWS Products.

Original idea by Maxime THOMAS - [email protected] Open Source Code under Apache License

Pitch

You have a video but it's in english and you have difficulties to understand it.

Serverless Subtitles can handle a video input, extract the sound, transcript it and generate different subtitle files for your video.

When the file is processed, you can access to a preview of the video with different generated languages.

Examples of the different VTT format files generated : EN | FR

TL;DR

This is working only in us-east-1 region so far.

$ cd cloudformation;
$ export USERNAME=<unique user id with only chars>
$ ./create-all.sh

AWS Services demonstrated

Elastic Transcoder :

Transcode is a service allowing you to transform videos. We use it to extract the sound of a MP4 file to a MP3 file.

https://aws.amazon.com/en/elastictranscoder/

Transcribe

Transcribe is a service allowing you to transform speech to text. We use it to get the transcript of the MP3 file.

https://aws.amazon.com/en/transcribe/

Translate

Translate is a service allowing you to translate text file in different languages. We use it to translate subtitle files.

https://aws.amazon.com/en/translate/

Solution Architecture

Set up

You must define a unique user id with only chars to setup this project.

We do so to avoid Bucket Name collision.

$ cd cloudformation;
$ export USERNAME=<unique user id with only chars>
$ ./create-all.sh

The script will do the following :

• apply all cloudformation templates from the cloudformation/templates directory
• set up the project :
  • uploading the lambdas functions;
  • creating mandatory keys in the S3 buckets;
  • generating a config file for the static website so JS client can directly access the resources with good arns.
• when everything is ready (about 2 min), you will get an url that should be like : http://subtitle.static.<username>.aws.com.s3-website-us-east-1.amazonaws.com/

Set down

$ cd cloudformation
$ ./delete-all.sh

License

This library is licensed under the Apache 2.0 License.