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# SCStream

An instance that represents a stream of shareable content.

```
class SCStream
```

## Overview

Use a stream to capture video of screen content like apps and windows. Create a content stream by passing it an instance of [`SCContentFilter`](/documentation/ScreenCaptureKit/SCContentFilter) and an [`SCStreamConfiguration`](/documentation/ScreenCaptureKit/SCStreamConfiguration) object. The stream uses the filter to determine which screen content to capture, and uses the configuration data to configure the output.

## Topics

### Creating a stream

[`init(filter:configuration:delegate:)`](/documentation/ScreenCaptureKit/SCStream/init(filter:configuration:delegate:))

Creates a stream with a content filter and configuration.

### Updating stream configuration

[`updateConfiguration(_:completionHandler:)`](/documentation/ScreenCaptureKit/SCStream/updateConfiguration(_:completionHandler:))

Updates the stream with a new configuration.

[`updateContentFilter(_:completionHandler:)`](/documentation/ScreenCaptureKit/SCStream/updateContentFilter(_:completionHandler:))

Updates the stream by applying a new content filter.

### Adding and removing stream output

[`addStreamOutput(_:type:sampleHandlerQueue:)`](/documentation/ScreenCaptureKit/SCStream/addStreamOutput(_:type:sampleHandlerQueue:))

Adds a destination that receives the stream output.

[`removeStreamOutput(_:type:)`](/documentation/ScreenCaptureKit/SCStream/removeStreamOutput(_:type:))

Removes a destination from receiving stream output.

### Adding and removing recording output

[`addRecordingOutput(_:)`](/documentation/ScreenCaptureKit/SCStream/addRecordingOutput(_:))

[`removeRecordingOutput(_:)`](/documentation/ScreenCaptureKit/SCStream/removeRecordingOutput(_:))

[`SCRecordingOutput`](/documentation/ScreenCaptureKit/SCRecordingOutput)

### Starting and stopping a stream

[`startCapture(completionHandler:)`](/documentation/ScreenCaptureKit/SCStream/startCapture(completionHandler:))

Starts the stream with a callback to indicate whether it successfully starts.

[`stopCapture(completionHandler:)`](/documentation/ScreenCaptureKit/SCStream/stopCapture(completionHandler:))

Stops the stream.

### Stream synchronization

[`synchronizationClock`](/documentation/ScreenCaptureKit/SCStream/synchronizationClock)

A clock to use for output synchronization.


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