---
title: hdr10PlusPerFrameData
framework: coremedia
role: symbol
role_heading: Instance Property
path: coremedia/cmsamplebuffer/sampleattachments-swift.struct/hdr10plusperframedata
---

# hdr10PlusPerFrameData

HDR10+ per frame metadata.

## Declaration

```swift
var hdr10PlusPerFrameData: Data? { get set }
```

## Discussion

Discussion The value should contain HDR10+ metadata within an User Data Registered ITU-T T-35 SEI message (see ISO/IEC 23008-2-2020 section D.3.6) as little endian in the Data. This attachment will override any HDR10+ metadata stored within the compressed data. The data should start with the field itu_t_t35_country_code with the value 0xb5.