---
title: OutputBufferNotification
framework: VideoDriverKit
role: symbol
role_heading: Instance Method
platforms: [driverkit 27.0+]
path: videodriverkit/iouservideodriver/outputbuffernotification
---

# OutputBufferNotification

## Declaration

```occ
kern_return_t OutputBufferNotification(IOUserVideoObjectID in_device_id, uint64_t in_change_action, IOUserVideoObjectID in_stream_id);
```

## See Also

### Working with buffers

- [BufferQueueChange](videodriverkit/iouservideodriver/bufferqueuechange.md)