---
title: kVTCompressionPropertyKey_PixelBufferPoolIsShared
framework: videotoolbox
role: symbol
role_heading: Global Variable
path: videotoolbox/kvtcompressionpropertykey_pixelbufferpoolisshared
---

# kVTCompressionPropertyKey_PixelBufferPoolIsShared

A Boolean value indicating whether the common pixel buffer pool is shared between the video encoder and the session client.

## Declaration

```swift
let kVTCompressionPropertyKey_PixelBufferPoolIsShared: CFString
```

## Discussion

Discussion This value is false if separate pools are used because the video encoder’s and the client’s pixel buffer attributes were incompatible.

## See Also

### Buffers

- [kVTCompressionPropertyKey_NumberOfPendingFrames](videotoolbox/kvtcompressionpropertykey_numberofpendingframes.md)
- [kVTCompressionPropertyKey_VideoEncoderPixelBufferAttributes](videotoolbox/kvtcompressionpropertykey_videoencoderpixelbufferattributes.md)