Class: AmazonIVSBroadcastClient

A class implementing the Web Broadcast SDK API.

Constructors

constructor

• new AmazonIVSBroadcastClient(config)

Creates an instance of the AmazonIVSBroadcastClient.

Parameters

Name	Type	Description
config	Config	Config

Properties

config

• config: Config

Config

---

emitter

• emitter: IEventEmitter

Methods

addAudioInputDevice

▸ addAudioInputDevice(device, name): Promise<void>

Adds the specified audio input to the broadcast stream.

Parameters

Name	Type	Description
device	MediaStream	Audio input to add to the stream.
name	string	Unique string you assign to the audio-input device.

Returns

Promise<void>

---

addImageSource

▸ addImageSource(image, name, position): Promise<void>

Adds the specified image to the broadcast stream.

Parameters

Name	Type	Description
image	HTMLVideoElement | HTMLCanvasElement | HTMLImageElement | ImageBitmap	Image to add to the stream. Must be of type HTMLImageElement, HTMLVideoElement, HTMLCanvasElement or ImageBitmap.
name	string	Unique string you assign to the image.
position	VideoComposition	The desired position of the image in the stream.

Returns

Promise<void>

---

addVideoInputDevice

▸ addVideoInputDevice(device, name, position): Promise<void>

Adds the specified video input to the broadcast stream.

Parameters

Name	Type	Description
device	MediaStream	Video input to add to the stream.
name	string	Unique string you assign to the video-input device.
position	VideoComposition	The desired position of the video in the stream.

Returns

Promise<void>

---

attachPreview

▸ attachPreview(element): void

Attach a HTMLCanvasElement to display a preview of the output.

Parameters

Name	Type	Description
element	HTMLCanvasElement	An HTMLCanvasElement on which to draw the composited preview.

Returns

void

---

delete

▸ delete(): void

Explicitly stop and/or free internal components that would otherwise leak.

Returns

void

---

detachPreview

▸ detachPreview(): void

Detach the HTMLCanvasElement preview element.

Returns

void

---

disableAudio

▸ disableAudio(): void

Disables all audio content from the stream.

Returns

void

---

disableVideo

▸ disableVideo(): void

Disables all video content from the stream.

Returns

void

---

enableAudio

▸ enableAudio(): void

Enables all audio content from the stream if previously disabled.

Returns

void

---

enableVideo

▸ enableVideo(): void

Enables all video content from the stream if previously disabled.

Returns

void

---

exchangeVideoDevicePositions

▸ exchangeVideoDevicePositions(name1, name2): void

Exchanges (swaps) the VideoComposition settings of two video devices.

Parameters

Name	Type	Description
name1	string	Unique name of the video device to swap (one of two).
name2	string	Unique name of the video device to swap (two of two).

Returns

void

---

getAudioContext

▸ getAudioContext(): AudioContext

Returns the Media Stream Manager's Audio Context to allow a user to have more direct control over the audio stream.

Returns

AudioContext

---

getAudioInputDevice

▸ getAudioInputDevice(name): Maybe<MediaStream>

Gets the MediaStream of the specified audio device.

Parameters

Name	Type	Description
name	string	Unique name of the audio device.

Returns

Maybe<MediaStream>

---

getCanvasDimensions

▸ getCanvasDimensions(): CanvasDimensions

Gets the dimensions of the canvas on which the stream is drawn.

Returns

CanvasDimensions

---

getConnectionState

▸ getConnectionState(): ConnectionState

Gets the state of the webRTC connection.

Returns

ConnectionState

---

getSessionId

▸ getSessionId(): undefined | string

Get active session ID

Returns

undefined | string

---

getVideoInputDevice

▸ getVideoInputDevice(name): Maybe<VideoDevice>

Gets the [[VideoDevice] of the specified video-input device.

Parameters

Name	Type	Description
name	string	Unique name of the video-input device.

Returns

Maybe<VideoDevice>

---

off

▸ off<Key>(event, callback): void

Deregisters (stops) a specified callback to a given event.

Type parameters

Name	Type
Key	extends string

Parameters

Name	Type	Description
event	Key	The event to which the callback was registered.
callback	Callback	The callback to remove.

Returns

void

---

on

▸ on<Key>(event, callback): void

Registers (starts) a specified callback to a specified event.

Type parameters

Name	Type
Key	extends string

Parameters

Name	Type	Description
event	Key	The event to listen to.
callback	Callback	The callback that will called when the event is fired.

Returns

void

---

removeAudioInputDevice

▸ removeAudioInputDevice(name): void

Removes the specified audio-input device from the stream.

Parameters

Name	Type	Description
name	string	Unique name of the device to remove.

Returns

void

---

removeImage

▸ removeImage(name): void

Removes the specified image from the stream.

Parameters

Name	Type	Description
name	string	Unique name of the image to remove.

Returns

void

---

removeVideoInputDevice

▸ removeVideoInputDevice(name): void

Removes the specified video-input device from the stream.

Parameters

Name	Type	Description
name	string	unique name of the device to remove.

Returns

void

---

startBroadcast

▸ startBroadcast(streamKey, ingestEndpoint?): Promise<void | BroadcastClientError>

Starts broadcasting to IVS.

Throws

Throws a BroadcastClientError if unable to stream.

Parameters

Name	Type	Description
streamKey	string	IVS-generated stream key for your IVS channel.
ingestEndpoint?	string	IVS-generated ingest endpoint for your IVS channel. This is optional but will need to be specified in either the config or as a parameter of this function.

Returns

Promise<void | BroadcastClientError>

---

stopBroadcast

▸ stopBroadcast(): void

Stops the broadcast.

Returns

void

---

updateVideoDeviceComposition

▸ updateVideoDeviceComposition(name, composition): void

Updates the position of the specified video device in the stream.

Parameters

Name	Type	Description
name	string	Unique name of the device to update.
composition	VideoComposition	The new position.

Returns

void