In comparing the performance, I use the AWS re:Invent 2019 keynote video, which is almost 3 hours long. You can use FFmpeg directly from a terminal or in scripts and applications. FFmpeg creates the GIF animations and individual frames for each second of video. The example application uses FFmpeg, an open source application to record and process video.
Move the slider to select a second in the video playback.After deploying the backend application, you can test your own videos here. The demo site defaults to an existing video.Move the slider to load the frame and GIF animation at that point in the video: In the example, there are GIF animations every 30 seconds and freeze frames for every second of video. This loads the assets for an example video that is already processed. To show the video player functionality, visit the demo front end. To set up the example, visit the GitHub repo and follow the instructions in the README.md file. This walkthrough creates some resources covered in the AWS Free Tier but others incur cost. The example application uses the AWS Serverless Application Model (AWS SAM), enabling you to deploy the application more easily in your own AWS account. I explain how you can use parallelization in AWS Lambda-based workloads to reduce processing time significantly. In this two-part blog post, I show how you can use a serverless approach to create a scalable GIF generation service. For a service providing thousands of videos to customers, they need a solution where the encoding process keeps pace with the number of videos. However, this may be a serial operation that slows down for longer videos or when there are many different videos to process. In a server-based solution, you can use a library like FFmpeg to load the underlying MP4 file and create the GIF exports.
Over a typical 2-hour movie with GIF previews every 30 seconds, you need 240 separate GIF animations to support this functionality. Generating these GIF files is a compute-intensive operation that becomes more challenging to scale when there are many videos. This helps customers see a preview and makes the user interface more intuitive. Many video streaming services show GIF animations in the frontend when users fast forward and rewind throughout a video.
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