---
title: resetDecoderBeforeDecoding
framework: coremedia
role: symbol
role_heading: Type Property
path: coremedia/cmsamplebufferattachmentkeydefinitions/resetdecoderbeforedecoding
---

# resetDecoderBeforeDecoding

Indicates whether the sample buffer should be reset before decoding.

## Declaration

```swift
static let resetDecoderBeforeDecoding: CVAttachmentKeyDefinitionWithDefault<CMSampleBufferAttachmentKeyDefinitions.ShouldPropagate, Bool>
```

## Discussion

Discussion This attachment is used at run time to indicate that a sample follows a break in decode sequence and that it is appropriate to reset the decoder before decoding this sample. The getter returns the default value of false if this attachment is not present.