ffmpeg-lambda-build
This is a few build scripts that create a fairly feature-rich dynamic build of ffmpeg intended to run in AWS Lambda. The intended use of this is in combination with youtube-dl, so it also produces binaries for ffprobe, mplayer, and rtmpdump as those are dependencies for some plugins.
I've tested this on amzn-ami-hvm-2016.03.3.x86_64-gp2, and it should be run on the current AWS Lambda AMI base, as specified in the documentation: http://docs.aws.amazon.com/lambda/latest/dg/current-supported-versions.html
You should run build.sh to retrieve and build all of the libraries, then prepare.sh to generate a stripped-down bundle for use in Lambda. The final output should be in ~/build/ffmpeg-lambda.zip.