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Add section on tracking protocols #654

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add section on tracking protocols
wjoosen May 20, 2026
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wjoosen May 20, 2026
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10 changes: 10 additions & 0 deletions theoplayer/how-to-guides/web/theolive/basic-playback-guide.mdx
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Expand Up @@ -109,6 +109,16 @@ Once you know what options you have available, you can set the stream to be a sp
player.videoTracks[0].targetQuality = qualities[indexOfDesiredQualityLayer];
```

## Tracking Streaming Protocols

In OptiView Live, an [`Endpoint`](https://optiview.dolby.com/docs/theoplayer/v11/api-reference/web/interfaces/Endpoint.html) can contain sources for multiple streaming protocols. For instance, it can be configured to load a WebRTC source for real time streaming but load a HLS source to allow seeking into a DVR window. Another use case is one where HESP is used as the primary streaming protocol, but the player could fall back to a HLS source if the platform doesn't support HESP playback.

To track switches between the possible streaming protocols, you can listen for the `currentsourcechange` event. The `currentSource` property in the payload shows which source is being used under the hood.

```javascript
player.addEventListener('currentsourcechange', console.log);
```

## More information

- [API references](pathname:///theoplayer/v11/api-reference/web/classes/Player.html)
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