---
title: AVAssetWriterInputTaggedPixelBufferGroupAdaptor
framework: avfoundation
role: symbol
role_heading: Class
path: avfoundation/avassetwriterinputtaggedpixelbuffergroupadaptor
---

# AVAssetWriterInputTaggedPixelBufferGroupAdaptor

An object that appends tagged buffer groups to an asset writer input.

## Declaration

```swift
class AVAssetWriterInputTaggedPixelBufferGroupAdaptor
```

## Overview

Overview This class provides a CVPixelBufferPool to use for allocating the pixel buffers of tagged buffer groups to write to the output file. Using the provided pixel buffer pool for buffer allocation is typically more efficient than appending pixel buffers allocated using a separate pool.

## Topics

### Creating an adaptor

- [init(assetWriterInput:sourcePixelBufferAttributes:)](avfoundation/avassetwriterinputtaggedpixelbuffergroupadaptor/init(assetwriterinput:sourcepixelbufferattributes:).md)

### Configuring the buffer pool

- [sourcePixelBufferAttributes](avfoundation/avassetwriterinputtaggedpixelbuffergroupadaptor/sourcepixelbufferattributes.md)
- [pixelBufferPool](avfoundation/avassetwriterinputtaggedpixelbuffergroupadaptor/pixelbufferpool.md)

### Appending pixel buffers

- [appendTaggedBuffers(_:withPresentationTime:)](avfoundation/avassetwriterinputtaggedpixelbuffergroupadaptor/appendtaggedbuffers(_:withpresentationtime:).md)
- [appendTaggedPixelBufferGroup(_:withPresentationTime:)](avfoundation/avassetwriterinputtaggedpixelbuffergroupadaptor/appendtaggedpixelbuffergroup(_:withpresentationtime:).md)

### Accessing the writer input

- [assetWriterInput](avfoundation/avassetwriterinputtaggedpixelbuffergroupadaptor/assetwriterinput.md)

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Media writing

- [Converting projected video to Apple Projected Media Profile](avfoundation/converting-projected-video-to-apple-projected-media-profile.md)
- [Converting side-by-side 3D video to multiview HEVC and spatial video](avfoundation/converting-side-by-side-3d-video-to-multiview-hevc-and-spatial-video.md)
- [Adding a display mask rectangle metadata track to a movie file](avfoundation/adding-a-display-mask-rectangle-metadata-track-to-a-movie-file.md)
- [Writing fragmented MPEG-4 files for HTTP Live Streaming](avfoundation/writing-fragmented-mpeg-4-files-for-http-live-streaming.md)
- [Creating spatial photos and videos with spatial metadata](imageio/creating-spatial-photos-and-videos-with-spatial-metadata.md)
- [Tagging media with video color information](avfoundation/tagging-media-with-video-color-information.md)
- [Evaluating an app’s video color](avfoundation/evaluating-an-app-s-video-color.md)
- [AVOutputSettingsAssistant](avfoundation/avoutputsettingsassistant.md)
- [AVAssetWriter](avfoundation/avassetwriter.md)
- [AVAssetWriterInput](avfoundation/avassetwriterinput.md)
- [AVAssetWriterInputPixelBufferAdaptor](avfoundation/avassetwriterinputpixelbufferadaptor.md)
- [AVAssetWriterInputMetadataAdaptor](avfoundation/avassetwriterinputmetadataadaptor.md)
- [AVAssetWriterInputGroup](avfoundation/avassetwriterinputgroup.md)