---
title: VTMultiPassStorage
framework: videotoolbox
role: symbol
role_heading: Class
path: videotoolbox/vtmultipassstorage
---

# VTMultiPassStorage

An object for storing information for each frame of a multipass compression session.

## Declaration

```swift
class VTMultiPassStorage
```

## Overview

Overview The multipass storage object is a reference-counted CoreFoundation (CF) type. The data stored in the multipass storage object is private to the video encoder.

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)