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AWS MediaConnect Multiviewer

A multiviewer for AWS MediaConnect flows. Companion blog post here.

This repository is a proof-of-concept for live video mixing for MediaConnect flows using AWS ECS containers. In this case, four MediaConnect streams are mixed by an FFmpeg container to produce a 4-panel video stream.

Multiviewer diagram

The same architecture is capable of supporting any type of live video mixing. With a tool like FFmpeg or GStreamer, many types of video filters and transformations can be applied to any number of inputs and outputs.

Infrastructure

  • 5x MediaConnect Flow (4 sources, 1 output)
  • Public VPC (VPC, Subnet, Internet Gateway, etc.)
  • ECS Cluster
  • 4x Source ECS Service
  • 1x Video Mixer ECS Service

Deployment

Clone the repo and install dependencies,

$ git clone https://github.com/joeykilpatrick/aws-mediaconnect-multiviewer.git
$ cd aws-mediaconnect-multiviewer
$ npm i

All infrastructure is deployed with the AWS CDK. Environment variables ACCOUNT_ID and REGION must be set for deployment. They can be specified in-line like this:

$ ACCOUNT_ID=123456789012 REGION=us-east-1 npm run deploy

For Windows, the cross-env package can be used.

$ npm i -g cross-env
$ cross-env ACCOUNT_ID=123456789012 REGION=us-east-1 npm run deploy

After deployment is complete, a CloudFormation export called multiviewerOutputUrl will be displayed. It should look something like this:

...
Outputs:
aws-mediaconnect-multiviewer.multiviewerOutputUrl = srt://XXX.XXX.XXX.XXX:3001
Stack ARN:
...

The output of the multiviewer stream can be viewed using this SRT URL. If you have FFmpeg installed, you can do

$ ffplay -i srt://XXX.XXX.XXX.XXX:3001

In may take a few minutes for the output to be viewable as all of the containers are initialized and begin streaming.

To tear down all resources,

$ ACCOUNT_ID=123456789012 REGION=us-east-1 npm run destroy