---
title: "makeBlockBuffer(count:)"
framework: coremedia
role: symbol
role_heading: Instance Method
path: "coremedia/cmmutabledatablockbuffer/memorypool/makeblockbuffer(count:)"
---

# makeBlockBuffer(count:)

Creates a block buffer with count number of bytes.

## Declaration

```swift
final func makeBlockBuffer(count: Int) -> CMMutableDataBlockBuffer
```