AWS FFmpeg Layer & a service using it to create GIFs

git clone https://github.com/serverless/examples
cd examples/aws-ffmpeg-layer
npm install
./build.sh
serverless deploy

build.sh downloads a static ffmpeg/ffprobe build from johnvansickle.com/ffmpeg into layer/ffmpeg, which is packaged as a Lambda layer and mounted at /opt/ffmpeg for the mkgif function. The script fetches the arm64 static build to match this example's provider.architecture: arm64; if you switch the function back to x86_64, update build.sh to fetch ffmpeg-release-amd64-static.tar.xz instead.

The S3 bucket that triggers mkgif defaults to gifmaker-${sls:stage}-${aws:accountId} (stage- and account-qualified, so it won't collide with other deployments of this example). Override it with BUCKET=my-bucket-name serverless deploy if you need a specific name.

After running deploy, you should see output similar to:

Deploying "gifmaker" to stage "dev" (us-east-1)

✔ Service deployed to stack gifmaker-dev (58s)

functions:
  mkgif: gifmaker-dev-mkgif (1.4 kB)

See the blog post about this example for more details: https://serverless.com/blog/publish-aws-lambda-layers-serverless-framework/