---
title: CAFRegionChunk
framework: audiotoolbox
role: symbol
role_heading: Structure
path: audiotoolbox/cafregionchunk
---

# CAFRegionChunk

## Declaration

```swift
struct CAFRegionChunk
```

## Topics

### Initializers

- [init()](audiotoolbox/cafregionchunk/init().md)
- [init(mSMPTE_TimeType:mNumberRegions:mRegions:)](audiotoolbox/cafregionchunk/init(msmpte_timetype:mnumberregions:mregions:).md)

### Instance Properties

- [mNumberRegions](audiotoolbox/cafregionchunk/mnumberregions.md)
- [mRegions](audiotoolbox/cafregionchunk/mregions.md)
- [mSMPTE_TimeType](audiotoolbox/cafregionchunk/msmpte_timetype.md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Sendable](swift/sendable.md)

## See Also

### File Structure

- [CAFAudioDescription](audiotoolbox/cafaudiodescription.md)
- [CAFAudioFormatListItem](audiotoolbox/cafaudioformatlistitem.md)
- [CAFChunkHeader](audiotoolbox/cafchunkheader.md)
- [CAFDataChunk](audiotoolbox/cafdatachunk.md)
- [CAFFileHeader](audiotoolbox/caffileheader.md)
- [CAFFormatFlags](audiotoolbox/cafformatflags.md)
- [CAFInfoStrings](audiotoolbox/cafinfostrings.md)
- [CAFInstrumentChunk](audiotoolbox/cafinstrumentchunk.md)
- [CAFMarker](audiotoolbox/cafmarker.md)
- [CAFMarkerChunk](audiotoolbox/cafmarkerchunk.md)
- [CAFOverviewChunk](audiotoolbox/cafoverviewchunk.md)
- [CAFOverviewSample](audiotoolbox/cafoverviewsample.md)
- [CAFPacketTableHeader](audiotoolbox/cafpackettableheader.md)
- [CAFPeakChunk](audiotoolbox/cafpeakchunk.md)
- [CAFPositionPeak](audiotoolbox/cafpositionpeak.md)