---
title: AllocateBlock
framework: coremedia
role: symbol
role_heading: Instance Property
path: coremedia/cmblockbuffercustomblocksource/allocateblock
---

# AllocateBlock

The function to allocate memory.

## Declaration

```swift
var AllocateBlock: ((UnsafeMutableRawPointer?, Int) -> UnsafeMutableRawPointer?)?
```

## See Also

### Properties

- [FreeBlock](coremedia/cmblockbuffercustomblocksource/freeblock.md)
- [refCon](coremedia/cmblockbuffercustomblocksource/refcon.md)
- [version](coremedia/cmblockbuffercustomblocksource/version.md)