> **Experimental**
>
> `@aws-cdk/aws-medialive-alpha` is an [**experimental**](/stability) (alpha) package: its API may change in any release, without a major version bump.
# MsSmoothOutputGroupProps

Properties for an MS Smooth output group.

- Stability: [Experimental](/cdk/api/stability.html)
- Source: [`lib/output-group.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-medialive-alpha/lib/output-group.ts#L1045)

## Example

```ts
declare const video: medialive.EncodeConfiguration;
declare const audio: medialive.EncodeConfiguration;

medialive.OutputGroupConfiguration.msSmooth({
  name: 'smooth',
  destinations: [medialive.OutputDestination.url('https://smooth.example.com/live')],
  outputs: [{ encodes: [video, audio], outputName: 'smooth_out' }],
});
```

## Properties

- `acquisitionPointId`: string — The value of the Acquisition Point Identity element used in each message placed in the sparse track.

  **Default:** service default

- `audioOnlyTimecodeControl`: [MsSmoothAudioOnlyTimecodeControl](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.MsSmoothAudioOnlyTimecodeControl.html) — If set to passthrough for an audio-only output, the fragment absolute time is set to the current timecode.

  **Default:** service default

- `certificateMode`: [MsSmoothCertificateMode](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.MsSmoothCertificateMode.html) — If set to VERIFY_AUTHENTICITY, verifies the HTTPS certificate chain to a trusted CA.

  **Default:** service default

- `connectionRetryInterval`: [Duration](/cdk/api/v2/docs/aws-cdk-lib.Duration.html) — The number of seconds to wait before retrying the connection to the IIS server if the connection is lost.

  **Default:** service default

- `destinations`: [OutputDestination](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.OutputDestination.html)[] (required) — The destinations for this output group — one per pipeline.

  Array position determines the pipeline mapping:
  - `destinations[0]` → Pipeline 0
  - `destinations[1]` → Pipeline 1 (STANDARD channels only)

  For a SINGLE_PIPELINE channel, provide exactly 1 destination.
  For a STANDARD channel, provide exactly 2 destinations.

- `eventId`: string — The Microsoft Smooth channel ID that is sent to the IIS server.

  **Default:** service default

- `eventIdMode`: [MsSmoothEventIdMode](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.MsSmoothEventIdMode.html) — Specifies whether to send a channel ID to the IIS server.

  **Default:** service default

- `eventStopBehavior`: [MsSmoothEventStopBehavior](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.MsSmoothEventStopBehavior.html) — When set to SEND_EOS, sends an EOS signal to an IIS server when stopping the channel.

  **Default:** service default

- `filecacheDuration`: [Duration](/cdk/api/v2/docs/aws-cdk-lib.Duration.html) — The size, in seconds, of the file cache for streaming outputs.

  **Default:** service default

- `fragmentLength`: [Duration](/cdk/api/v2/docs/aws-cdk-lib.Duration.html) — The length, in seconds, of mp4 fragments to generate.

  **Default:** service default

- `inputLossAction`: [MsSmoothInputLossAction](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.MsSmoothInputLossAction.html) — A parameter that controls output group behavior on an input loss.

  **Default:** service default

- `name`: string (required) — The name of this output group.

  Used as the destination reference ID. Underscores are normalised to hyphens internally.

- `numRetries`: number = 10 — The number of retry attempts.

- `outputs`: [MsSmoothOutputDefinition](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.MsSmoothOutputDefinition.html)[] — The outputs for this MS Smooth output group.

  **Default:** no initial outputs

- `restartDelay`: [Duration](/cdk/api/v2/docs/aws-cdk-lib.Duration.html) = Duration.seconds(1) — The number of seconds before initiating a restart due to output failure.

- `segmentationMode`: [MsSmoothSegmentationMode](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.MsSmoothSegmentationMode.html) — The segmentation mode.

  **Default:** service default

- `sendDelayMs`: number — The number of milliseconds to delay the output from the second pipeline.

  **Default:** service default

- `sparseTrackType`: [MsSmoothSparseTrackType](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.MsSmoothSparseTrackType.html) — If set to SCTE_35, uses incoming SCTE-35 messages to generate a sparse track.

  **Default:** service default

- `streamManifestBehavior`: [MsSmoothStreamManifestBehavior](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.MsSmoothStreamManifestBehavior.html) — When set to SEND, sends a stream manifest so that the publishing point doesn't start until all streams start.

  **Default:** service default

- `timestampOffset`: string — The timestamp offset for the channel.

  **Default:** service default

  Used only if timestampOffsetMode is set to USE_CONFIGURED_OFFSET.

- `timestampOffsetMode`: [MsSmoothTimestampOffsetMode](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.MsSmoothTimestampOffsetMode.html) — The type of timestamp date offset to use.

  **Default:** service default