---
title: indicatesNonRectilinearProjection
framework: avfoundation
role: symbol
role_heading: Type Property
path: avfoundation/avmediacharacteristic/indicatesnonrectilinearprojection
---

# indicatesNonRectilinearProjection

A media characteristic that indicates the video track carries information related to how it should be projected for display.

## Declaration

```swift
static let indicatesNonRectilinearProjection: AVMediaCharacteristic
```

## Discussion

Discussion This media characteristic is currently synthesized if the CMVideoFormatDescription specifies a non-rectilinear projection. To determine which kind of projection is indicated, look for the format description extension with key kCMFormatDescriptionExtension_ProjectionKind. The value of this characteristic is @“public.indicates-non-rectilinear-projection”. Note for content authors: the presence of this characteristic is strictly inferred from the format description of the associated track.

## See Also

### Visual

- [visual](avfoundation/avmediacharacteristic/visual.md)
- [containsAlphaChannel](avfoundation/avmediacharacteristic/containsalphachannel.md)
- [containsHDRVideo](avfoundation/avmediacharacteristic/containshdrvideo.md)
- [frameBased](avfoundation/avmediacharacteristic/framebased.md)
- [usesWideGamutColorSpace](avfoundation/avmediacharacteristic/useswidegamutcolorspace.md)
- [containsStereoMultiviewVideo](avfoundation/avmediacharacteristic/containsstereomultiviewvideo.md)
- [carriesVideoStereoMetadata](avfoundation/avmediacharacteristic/carriesvideostereometadata.md)
- [indicatesHorizontalFieldOfView](avfoundation/avmediacharacteristic/indicateshorizontalfieldofview.md)