<!--
{
  "documentType" : "article",
  "framework" : "CoreMedia",
  "identifier" : "/documentation/CoreMedia/format-description-bridge-errors",
  "metadataVersion" : "0.1.0",
  "role" : "collectionGroup",
  "title" : "Format Description Bridge Error Codes"
}
-->

# Format Description Bridge Error Codes

Bridge errors the system returns from format description calls.

## Topics

### Constants

[`var kCMFormatDescriptionBridgeError_InvalidParameter: OSStatus`](/documentation/CoreMedia/kCMFormatDescriptionBridgeError_InvalidParameter)

A bridge error that indicates that the function recieves an empty value for a parameter it requires.

[`var kCMFormatDescriptionBridgeError_AllocationFailed: OSStatus`](/documentation/CoreMedia/kCMFormatDescriptionBridgeError_AllocationFailed)

A bridge error that indicates when an allocation fails.

[`var kCMFormatDescriptionBridgeError_IncompatibleFormatDescription: OSStatus`](/documentation/CoreMedia/kCMFormatDescriptionBridgeError_IncompatibleFormatDescription)

A bridge error that indicates the format description has an unknown format.

[`var kCMFormatDescriptionBridgeError_InvalidFormatDescription: OSStatus`](/documentation/CoreMedia/kCMFormatDescriptionBridgeError_InvalidFormatDescription)

A bridge error that indicates the format description isn’t valid.

[`var kCMFormatDescriptionBridgeError_InvalidSerializedSampleDescription: OSStatus`](/documentation/CoreMedia/kCMFormatDescriptionBridgeError_InvalidSerializedSampleDescription)

A bridge error that indicates that the sample isn’t valid.

[`var kCMFormatDescriptionBridgeError_InvalidSlice: OSStatus`](/documentation/CoreMedia/kCMFormatDescriptionBridgeError_InvalidSlice)

A bridge error that indicates the slice isn’t valid.

[`var kCMFormatDescriptionBridgeError_UnsupportedSampleDescriptionFlavor: OSStatus`](/documentation/CoreMedia/kCMFormatDescriptionBridgeError_UnsupportedSampleDescriptionFlavor)

A bridge error that indicates the sample isn’t supported for the format flavor you specify.


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)