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# hdr10PlusPerFrameData

HDR10+ per frame metadata.

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

## 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`.

---

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