Request Syntax URI Request Parameters Request Body Response Syntax Response Elements Errors See Also

JoinStorageSessionAsViewer

Note

WebRTC ingest with multi-viewer support (Preview) is being provided in Preview as defined in the AWS Service Terms and is subject to change. It is currently only available in us-east-1 (IAD).

To participate in the preview, email us at kvs-webrtc-multi-view-preview@amazon.com.

Note

Before using this API, you must call the GetSignalingChannelEndpoint API to request the WEBRTC endpoint. You then specify the endpoint and region in your JoinStorageSessionAsViewer API request.

Join the ongoing one way-video and/or multi-way audio WebRTC session as a video producing device for an input channel. If there's not an existing session for the channel, create a new streaming session and provide the Amazon Resource Name (ARN) of the signaling channel.

Currently for the SINGLE_MASTER type, a video producing device is able to ingest both audio and video media into a stream.

Important

Viewers currently can't send any video tracks. Viewers can send an optional audio track or no tracks at all.

Current viewer participant sending requirements:

Video track: Not supported
Audio track (optional): Opus

If the master participant is currently connected to the video producing device, the resulting ingested video in the Kinesis video stream will have the following parameters: H.264 video and AAC audio.

Viewer participants will be able to hear each other and also receive media from the master participant through WebRTC.

Note

Viewer participants connect directly to the storage session and not directly to the master participant. The storage session takes care of mixing, duplicating, and routing the media to the appropriate destination.

Note

If the master participant isn't present, viewers won't be able to hear each other.

Once the viewer participant has negotiated a connection through WebRTC, the ingested audio session will be stored in the Kinesis video stream as long as the master participant is also connected to the storage session.

You can also use existing Kinesis Video Streams features like HLS or DASH playback, image generation via GetImages, and more with ingested WebRTC media.

Note

S3 image delivery and notifications are not currently supported.

Note

Assume that only one video producing device client can be associated with a session for the channel. If more than one client joins the session of a specific channel as a video producing device, the most recent client request takes precedence.

Limits

The current limits are in place:

Maximum number of viewers: 3
Maximum time viewer participants remain connected to the storage session without a master participant present: 3 minutes

Important

If a viewer disconnects from the storage session (closes the peer connection), their quota (viewer limit) remains consumed for 1 minute. During this 1-minute period, the viewer can invoke this API with the same Client ID to rejoin the session without consuming an additional viewer quota. After 1 minute, the viewer quota is released and available for other viewers to join.

Additional information

Idempotent - This API is not idempotent.
Retry behavior - This is counted as a new API call.
Concurrent calls - Concurrent calls are allowed. An offer is sent once per each call.

Request Syntax


POST /joinStorageSessionAsViewer HTTP/1.1
Content-type: application/json

{
   "channelArn": "string",
   "clientId": "string"
}

URI Request Parameters

The request does not use any URI parameters.

Request Body

The request accepts the following data in JSON format.

channelArn

The Amazon Resource Name (ARN) of the signaling channel.

Important

Note the capitalization of this input parameter.

Type: String

Pattern: ^arn:(aws[a-zA-Z-]*):kinesisvideo:[a-z0-9-]+:[0-9]+:[a-z]+/[a-zA-Z0-9_.-]+/[0-9]+$

Required: Yes

clientId

The unique identifier for the sender client.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 256.

Pattern: ^[a-zA-Z0-9_.-]+$

Required: Yes

Response Syntax


HTTP/1.1 200

Response Elements

If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

Errors

For information about the errors that are common to all actions, see Common Errors.

AccessDeniedException

You do not have required permissions to perform this operation.

HTTP Status Code: 403

ClientLimitExceededException

Kinesis Video Streams has throttled the request because you have exceeded the limit of allowed client calls. Try making the call later.

HTTP Status Code: 400

InvalidArgumentException

The value for this input parameter is invalid.

HTTP Status Code: 400

ResourceNotFoundException

The specified resource is not found.

HTTP Status Code: 404