Propeller

Propeller is the ViacomCBS live-streaming platform. Propeller can orchestrate and manage all of your cloud based resources needed for a live streaming environment. If you have a stream running out of Propeller, you can stream that channel via Bakery!

For help on managing playback of your Propeller channels via Bakery, check out the documentation below.

Playback

Bakery can be used to manage your Propeller playback URLs.

Channels

To request a Propeller channel via Bakery:

https://bakery.dev.vtg.paramount.tech/propeller/<org-id>/<channel-id>.m3u8

Bakery will then set the Playback URL with the following priority, depending on your channel settings:

1. Startfruit
2. DAI
3. Carrier
4. Playback URL
5. Archive

As long as you’re channel was set to archive, Bakery will automatically proxy the archive stream when your Propeller channel has ended.

Clips

To request a Propeller clip via Bakery:

https://bakery.dev.vtg.paramount.tech/propeller/<org-id>/clip/<clip-id>.m3u8

Note Clips are not enabled for DASH

Outputs

To request a Propeller output via Bakery:

https://bakery.dev.vtg.paramount.tech/propeller/<org-id>/<channel-id>/<output-id>.m3u8

Note Outputs are not currently enabled for DASH but a feature implementation is in the backlog. To prioritize this feature, feel free to reach out on slack!

Explicit Origins

To have Bakery use a specific origin url for the output, add another path item specifying the origin to be used:

http://bakery.dev.vtg.paramount.tech/propeller/<org-id>/<channel-id>/<output-id>/<origin>.m3u8

Supported values for origin include

origin	description
dai	ad-supported stream from Google DAI
captions	auto-captioned stream from Dictate
cdn	raw cdn stream url

Origin Fallback

If you’re not sure what origins are available for your channel, or to gracefully handle channel configuration changes that may remove or add origins while the channel is running, you can optionally specify multiple origins in this last path element. The - delimiter separates multiple origins. If the path defines more than one origin, Bakery will loop through the origins in order and choose the first valid origin found on the channel.

For example, in order to specify a Bakery url that prefers an auto-captioned stream, but falls back to the CDN origin if auto-captions is disabled on the channel, you’d construct the url:

    http://bakery.dev.vtg.paramount.tech/propeller/<org-id>/<channel-id>/<output-id>/captions-cdn.m3u8

Help

For more information on Propeller, check out the documentation here or reach out to the Propeller team on Slack to get all set up!