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# broadcastVideoOutput(_:didDropVideoFrameWithPresentationTimeStamp:from:)

Called when a video frame is dropped during broadcast video output processing.

```
optional func broadcastVideoOutput(_ output: AVCaptureBroadcastVideoOutput, didDropVideoFrameWithPresentationTimeStamp presentationTimeStamp: CMTime, from connection: AVCaptureConnection)
```

## Parameters

`output`

The [`AVCaptureBroadcastVideoOutput`](/documentation/AVFoundation/AVCaptureBroadcastVideoOutput) instance that dropped the video frame.

`presentationTimeStamp`

The presentation timestamp (PTS) of the dropped video frame.

`connection`

The [`AVCaptureConnection`](/documentation/AVFoundation/AVCaptureConnection) associated with the dropped video frame.

## Discussion

This method is called whenever the broadcast video output system needs to drop a video frame due to performance constraints, destination issues, buffer overruns, or encoding failures.

---

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