---
title: CVBuffer Attachment Keys
framework: corevideo
role: collectionGroup
role_heading: API Collection
path: corevideo/cvbuffer-attachment-keys
---

# CVBuffer Attachment Keys

The attachment types for a Core Video buffer.

## Topics

### Constants

- [kCVBufferMovieTimeKey](corevideo/kcvbuffermovietimekey.md)
- [kCVBufferTimeValueKey](corevideo/kcvbuffertimevaluekey.md)
- [kCVBufferTimeScaleKey](corevideo/kcvbuffertimescalekey.md)

## See Also

### Constants

- [CVBuffer Attribute Keys](corevideo/cvbuffer-attribute-keys.md)