---
title: AVURLAssetShouldParseExternalSphericalTagsKey
framework: avfoundation
role: symbol
role_heading: Global Variable
path: avfoundation/avurlassetshouldparseexternalsphericaltagskey
---

# AVURLAssetShouldParseExternalSphericalTagsKey

Indicates whether additional projected media signaling in the asset should be parsed and resolved as format description extensions.

## Declaration

```swift
let AVURLAssetShouldParseExternalSphericalTagsKey: String
```

## Discussion

Discussion Default is NO.

## See Also

### Options

- [AVURLAssetAllowsCellularAccessKey](avfoundation/avurlassetallowscellularaccesskey.md)
- [AVURLAssetAllowsConstrainedNetworkAccessKey](avfoundation/avurlassetallowsconstrainednetworkaccesskey.md)
- [AVURLAssetAllowsExpensiveNetworkAccessKey](avfoundation/avurlassetallowsexpensivenetworkaccesskey.md)
- [AVURLAssetHTTPCookiesKey](avfoundation/avurlassethttpcookieskey.md)
- [AVURLAssetHTTPUserAgentKey](avfoundation/avurlassethttpuseragentkey.md)
- [AVURLAssetOverrideMIMETypeKey](avfoundation/avurlassetoverridemimetypekey.md)
- [AVURLAssetPreferPreciseDurationAndTimingKey](avfoundation/avurlassetpreferprecisedurationandtimingkey.md)
- [AVURLAssetPrimarySessionIdentifierKey](avfoundation/avurlassetprimarysessionidentifierkey.md)
- [AVURLAssetReferenceRestrictionsKey](avfoundation/avurlassetreferencerestrictionskey.md)
- [AVURLAssetShouldSupportAliasDataReferencesKey](avfoundation/avurlassetshouldsupportaliasdatareferenceskey.md)
- [AVURLAssetURLRequestAttributionKey](avfoundation/avurlasseturlrequestattributionkey.md)