---
title: kCMBlockBufferDontOptimizeDepthFlag
framework: coremedia
role: symbol
role_heading: Global Variable
path: coremedia/kcmblockbufferdontoptimizedepthflag
---

# kCMBlockBufferDontOptimizeDepthFlag

Passed to block buffers to suppress reference depth optimization.

## Declaration

```swift
var kCMBlockBufferDontOptimizeDepthFlag: CMBlockBufferFlags { get }
```

## See Also

### Constants

- [kCMBlockBufferAssureMemoryNowFlag](coremedia/kcmblockbufferassurememorynowflag.md)
- [kCMBlockBufferAlwaysCopyDataFlag](coremedia/kcmblockbufferalwayscopydataflag.md)
- [kCMBlockBufferPermitEmptyReferenceFlag](coremedia/kcmblockbufferpermitemptyreferenceflag.md)