# Sample Buffer Error Codes Errors that occur when processing sample buffer objects. ## Topics ### Error Codes [`kCMSampleBufferError_AllocationFailed`](/documentation/CoreMedia/kCMSampleBufferError_AllocationFailed) An error code that indicates the system failed to allocate memory. [`kCMSampleBufferError_AlreadyHasDataBuffer`](/documentation/CoreMedia/kCMSampleBufferError_AlreadyHasDataBuffer) An error code that indicates an attempt to set data on a sample buffer failed because that buffer already contains media data. [`kCMSampleBufferError_ArrayTooSmall`](/documentation/CoreMedia/kCMSampleBufferError_ArrayTooSmall) An error code that indicates the output array isn’t large enough to hold the requested array. [`kCMSampleBufferError_BufferHasNoSampleSizes`](/documentation/CoreMedia/kCMSampleBufferError_BufferHasNoSampleSizes) An error code that indicates a request for sample sizes on a buffer failed because the buffer doesn’t provide that information. [`kCMSampleBufferError_BufferHasNoSampleTimingInfo`](/documentation/CoreMedia/kCMSampleBufferError_BufferHasNoSampleTimingInfo) An error code that indicates a request for sample timing on a buffer failed because the buffer doesn’t contain that information. [`kCMSampleBufferError_BufferNotReady`](/documentation/CoreMedia/kCMSampleBufferError_BufferNotReady) An error code that indicates the system can’t make the buffer’s data ready for use. [`kCMSampleBufferError_CannotSubdivide`](/documentation/CoreMedia/kCMSampleBufferError_CannotSubdivide) An error code that indicates a sample buffer doesn’t contain sample sizes. [`kCMSampleBufferError_DataCanceled`](/documentation/CoreMedia/kCMSampleBufferError_DataCanceled) An error code that indicates a sample buffer canceled its data-loading operation. [`kCMSampleBufferError_DataFailed`](/documentation/CoreMedia/kCMSampleBufferError_DataFailed) An error code that indicates a sample buffer failed to load its data. [`kCMSampleBufferError_InvalidEntryCount`](/documentation/CoreMedia/kCMSampleBufferError_InvalidEntryCount) An error code that indicates a timing or size value isn’t within the allowed range. [`kCMSampleBufferError_InvalidMediaFormat`](/documentation/CoreMedia/kCMSampleBufferError_InvalidMediaFormat) An error code that indicates the media format doesn’t match the sample buffer’s format description. [`kCMSampleBufferError_InvalidMediaTypeForOperation`](/documentation/CoreMedia/kCMSampleBufferError_InvalidMediaTypeForOperation) An error code that indicates the media type that the format description defines isn’t a value for the requested operation. [`kCMSampleBufferError_InvalidSampleData`](/documentation/CoreMedia/kCMSampleBufferError_InvalidSampleData) An error code that indicates the sample buffer contains bad data. [`kCMSampleBufferError_Invalidated`](/documentation/CoreMedia/kCMSampleBufferError_Invalidated) An error code that indicates a sample buffer invalidated its data. [`kCMSampleBufferError_RequiredParameterMissing`](/documentation/CoreMedia/kCMSampleBufferError_RequiredParameterMissing) An error code that indicates a required parameter’s value is invalid. [`kCMSampleBufferError_SampleIndexOutOfRange`](/documentation/CoreMedia/kCMSampleBufferError_SampleIndexOutOfRange) An error code that indicates the sample index is outside the range of samples that the buffer contains. [`kCMSampleBufferError_SampleTimingInfoInvalid`](/documentation/CoreMedia/kCMSampleBufferError_SampleTimingInfoInvalid) An error code that indicates the sample buffer unexpectedly contains nonnumeric sample-timing information. --- Copyright © 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)