---
title: kVTCompressionPropertyKey_MVHEVCViewIDs
framework: videotoolbox
role: symbol
role_heading: Global Variable
path: videotoolbox/kvtcompressionpropertykey_mvhevcviewids
---

# kVTCompressionPropertyKey_MVHEVCViewIDs

The identifiers of the views corresponding to the video layers in a multiview encoding operation.

## Declaration

```swift
let kVTCompressionPropertyKey_MVHEVCViewIDs: CFString
```

## Discussion

Discussion This property is specific to MV-HEVC. The entries in the specified array should be in the same order and have the same count as the value specified in kVTCompressionPropertyKey_MVHEVCVideoLayerIDs. The default value is NULL.

## See Also

### Multiview Compression

- [kVTCompressionPropertyKey_MVHEVCLeftAndRightViewIDs](videotoolbox/kvtcompressionpropertykey_mvhevcleftandrightviewids.md)
- [kVTCompressionPropertyKey_MVHEVCVideoLayerIDs](videotoolbox/kvtcompressionpropertykey_mvhevcvideolayerids.md)