---
title: "addClipBufferingOutput(_:)"
framework: screencapturekit
role: symbol
role_heading: Instance Method
path: "screencapturekit/scstream/addclipbufferingoutput(_:)"
---

# addClipBufferingOutput(_:)

## Declaration

```swift
func addClipBufferingOutput(_ clipBufferingOutput: SCClipBufferingOutput) throws
```

## Parameters

- `clipBufferingOutput`: A SCClipBufferingOutput object

## Discussion

Discussion Add a SCClipBufferingOutput to the SCStream to start clip buffering. Samples will begin accumulating in a rolling buffer that retains the most recent content up to 15 seconds. Returns a BOOL denoting if the add was successful. The stream must be actively capturing before clip buffering can be started. Only one clip buffering session can be active on a stream at a time. Once buffering is active, clips can be exported using the SCClipBufferingOutput’s exportClipToURL:duration:completionHandler: method. Media to be buffered is based on the SCStream configuration.