---
title: CMDroppedFrameReason.discontinuity
framework: coremedia
role: symbol
role_heading: Case
path: coremedia/cmdroppedframereason/discontinuity
---

# CMDroppedFrameReason.discontinuity

An unknown number of frames were dropped.

## Declaration

```swift
case discontinuity
```

## Discussion

Discussion When the module providing sample buffers has experienced a discontinuity, and an unknown number of frames have been lost. This condition is typically caused by the system being too busy.