---
title: AVVideoProfileLevelH264Main31
framework: avfoundation
role: symbol
role_heading: Global Variable
path: avfoundation/avvideoprofilelevelh264main31
---

# AVVideoProfileLevelH264Main31

A main-level 3.1 profile.

## Declaration

```swift
let AVVideoProfileLevelH264Main31: String
```

## See Also

### Profile level

- [AVVideoProfileLevelKey](avfoundation/avvideoprofilelevelkey.md)
- [AVVideoProfileLevelH264High40](avfoundation/avvideoprofilelevelh264high40.md)
- [AVVideoProfileLevelH264High41](avfoundation/avvideoprofilelevelh264high41.md)
- [AVVideoProfileLevelH264Main30](avfoundation/avvideoprofilelevelh264main30.md)
- [AVVideoProfileLevelH264Main32](avfoundation/avvideoprofilelevelh264main32.md)
- [AVVideoProfileLevelH264Main41](avfoundation/avvideoprofilelevelh264main41.md)
- [AVVideoProfileLevelH264Baseline30](avfoundation/avvideoprofilelevelh264baseline30.md)
- [AVVideoProfileLevelH264Baseline31](avfoundation/avvideoprofilelevelh264baseline31.md)
- [AVVideoProfileLevelH264Baseline41](avfoundation/avvideoprofilelevelh264baseline41.md)
- [AVVideoProfileLevelH264HighAutoLevel](avfoundation/avvideoprofilelevelh264highautolevel.md)
- [AVVideoProfileLevelH264MainAutoLevel](avfoundation/avvideoprofilelevelh264mainautolevel.md)
- [AVVideoProfileLevelH264BaselineAutoLevel](avfoundation/avvideoprofilelevelh264baselineautolevel.md)