Connecting Eyevinn Channel Engine with AWS MediaPackage

A screenshot of the vod2live demo page
Using AWS MediaPackage to provide CMAF output and DVR window for timeshifted viewing
  • Giving the viewer the ability to pause the VOD2Live stream and continue watching from that point in time.
  • Giving the viewer the ability to start to watch the VOD2Live stream from a point in time earlier than “now” (time shifted).
  • The VOD2Live stream can be encrypted and protected with DRM.
  • Compatibility with the latest streaming formats such as Apple HLS with CMAF media segments.

VOD2Live Channel Engine

Before we continue let us recap what the VOD2Live Channel Engine does. The VOD2Live Channel Engine uses HLS manifest manipulation to provide a pseudo live linear HLS stream from a library of already transcoded and HLS packaged content available on a CDN. One of the benefits is that the already transcoded programs does not have to pass through a live transcoder again. That gives us the possibility to provide a linear channel with higher quality as the VOD transcoding process is not real-time dependent in the same way as live transcoding is. Another benefit is that as no video transcoding is necessary to produce a channel the resources utilization is extremely low compared to a real-time transcoded linear stream. Which can be considered a waste when replaying non-live program. As the resource utilization is this low you can create hundreds of channels to the equivalent of one real-time transcoded channel. This opens up the possibility to create very niched channels or even channels on a per-user basis. A channel tailored to each individual viewer’s preference.

Connecting the Channel Engine with AWS MediaPackage

The Channel Engine is an origin service which means that a video player, either directly or through a CDN, pulls the HLS content from the Channel Engine service. To get HLS content uploaded to an AWS MediaPackage you would push the HLS content to one (or both) of the ingest endpoints the AWS MediaPackage channel provides. As the Channel Engine is an origin service it does not offers the functionality to push the content to another origin such as the AWS MediaPackage origin. This is intentional as the Channel Engine service is designed to not only handle static channels but also session based channels. A session based channel is where a channel is created on request.

const pullPushService = new HLSPullPush();const outputPlugin = new MediaPackageOutput();
pullPushService.registerPlugin("mediapackage", outputPlugin);
pullPushService.listen(process.env.PORT || 8080);
const outputDest = outputPlugin.createOutputDestination({
ingestUrls: [ {
url: <MEDIAPACKAGE_INGEST_URL>,
username: <MEDIAPACKAGE_USERNAME>,
password: <MEDIAPACKAGE_PASSWORD>,
}]
}, pullPushService.getLogger());
const source = new URL("https://demo.vc.eyevinn.technology/channels/demo/master.m3u8");const sessionId = pullPushService.startFetcher({
name: "demo",
url: source.href,
destPlugin: outputDest,
destPluginName: "mediapackage"
});
outputDest.attachSessionId(sessionId);

Demo Architecture

The system architecture for this demo can be illustrated by the diagram below.

  • Schedule Service is based on the open sourced Eyevinn Schedule Service with one module that automatically creates channel schedules based of the contents of an MRSS.
  • MRSS Generator is a Lambda function that reads from a Dynamo DB database containing the test content we have uploaded. This DB is updated by our test content uploader (not in the diagram).
  • Demo Channel Engine is based on the mentioned VOD2Live Channel Engine and uses a schedule adapter built for the Schedule Service. It provides the VOD2Live channel HLS endpoint.
  • The MRSS Generator can provide two types of MRSS feeds. One where house ads are included in the HLS VOD. To provide HLS VOD with the house ads inserted, another Lambda function, HLS Stitch, is being used.
  • The HLS Pull Push service fetches HLS from the Channel Engine and pushes to AWS MediaPackage using the MediaPackage output plugin.
  • AWS MediaPackage then provides HLS endpoints with the DVR functionality and AWS MediaTailor to replace the house ads in the stream with just-in-time decided ads. Ad requests for MediaTailor are provided by our test adserver.

Conclusion

To conclude the benefits of using this solution is that you can offer your viewers a linear TV channel with higher quality by using a transcoding without realtime constraints, channel is protected with DRM and the viewer can pause and watch the channel in a timeshift mode.

--

--

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Eyevinn Technology

Eyevinn Technology

We are consultants sharing the passion for the technology for a media consumer of the future.