---
title: "init(asset:timebase:)"
framework: avfoundation
role: symbol
role_heading: Initializer
path: "avfoundation/avsamplebuffergenerator/init(asset:timebase:)"
---

# init(asset:timebase:)

Creates a new sample buffer generator.

## Declaration

```swift
init(asset: AVAsset, timebase: CMTimebase?)
```

## Parameters

- `asset`: The asset.
- `timebase`: If NULL, requests will be handled synchronously.

## Return Value

Return Value An initialized AVSampleBufferGenerator instance.