---
title: sequenceNumber
framework: coremediaio
role: symbol
role_heading: Instance Property
path: coremediaio/cmioextensionscheduledoutput/sequencenumber
---

# sequenceNumber

The buffer sequence number that was output.

## Declaration

```swift
var sequenceNumber: UInt64 { get }
```

## See Also

### Inspecting the Output

- [hostTimeInNanoseconds](coremediaio/cmioextensionscheduledoutput/hosttimeinnanoseconds.md)