---
title: AVCaptureTimecode.SourceType.frameCount
framework: AVFoundation
role: symbol
role_heading: Case
platforms: [iOS 26.0+, iPadOS 26.0+, Mac Catalyst 26.0+, macOS 26.0+, tvOS 26.0+]
path: avfoundation/avcapturetimecode/sourcetype-swift.enum/framecount
---

# AVCaptureTimecode.SourceType.frameCount

No internal or external source is adopted. Timecodes are zero-based, sequentially generated frame counts.

## Declaration

```swift
case frameCount
```

## See Also

### Source types

- [AVCaptureTimecode.SourceType.external](avfoundation/avcapturetimecode/sourcetype-swift.enum/external.md)
- [AVCaptureTimecode.SourceType.realTimeClock](avfoundation/avcapturetimecode/sourcetype-swift.enum/realtimeclock.md)