---
title: kCMSampleBufferConduitNotificationParameter_ResumeTag
framework: coremedia
role: symbol
role_heading: Global Variable
path: coremedia/kcmsamplebufferconduitnotificationparameter_resumetag
---

# kCMSampleBufferConduitNotificationParameter_ResumeTag

Specifies a tag to be attached to the first sample buffer following a discontinuity (type CFNumber).

## Declaration

```swift
let kCMSampleBufferConduitNotificationParameter_ResumeTag: CFString
```

## Discussion

Discussion A conduit of sample buffers posts the kCMSampleBufferConduitNotification_InhibitOutputUntil notification when a discontinuity in decoding occurs. The value for this key will be attached to the first sample buffer following the discontinuity using the kCMSampleBufferAttachmentKey_ResumeOutput attachment, indicating that clients should resume output.

## See Also

### Sample Buffer Conduit Notifications

- [kCMSampleBufferConduitNotification_ResetOutput](coremedia/kcmsamplebufferconduitnotification_resetoutput.md)
- [kCMSampleBufferConduitNotification_InhibitOutputUntil](coremedia/kcmsamplebufferconduitnotification_inhibitoutputuntil.md)
- [kCMSampleBufferConduitNotification_UpcomingOutputPTSRangeChanged](coremedia/kcmsamplebufferconduitnotification_upcomingoutputptsrangechanged.md)
- [kCMSampleBufferConduitNotificationParameter_UpcomingOutputPTSRangeMayOverlapQueuedOutputPTSRange](coremedia/kcmsamplebufferconduitnotificationparameter_upcomingoutputptsrangemayoverlapqueuedoutputptsrange.md)
- [kCMSampleBufferConduitNotificationParameter_MinUpcomingOutputPTS](coremedia/kcmsamplebufferconduitnotificationparameter_minupcomingoutputpts.md)
- [kCMSampleBufferConduitNotificationParameter_MaxUpcomingOutputPTS](coremedia/kcmsamplebufferconduitnotificationparameter_maxupcomingoutputpts.md)