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

Output definition for an SRT output group.

`outputName` is normalised (underscores → hyphens) for use as the destination reference ID.

Extends: SrtOutputDefinition
Extends: OutputDefinition

- Stability: [Experimental](/cdk/api/stability.html)
- Source: [`lib/outputs.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-medialive-alpha/lib/outputs.ts#L434)

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as medialive_alpha from '@aws-cdk/aws-medialive-alpha';
import * as cdk from 'aws-cdk-lib';

declare const encodeConfiguration: medialive_alpha.EncodeConfiguration;
declare const m2tsSettings: medialive_alpha.M2tsSettings;
declare const srtDestination: medialive_alpha.SrtDestination;
declare const srtEncryptionType: medialive_alpha.SrtEncryptionType;
const srtOutputDefinition: medialive_alpha.SrtOutputDefinition = {
  destinations: [srtDestination],
  encodes: [encodeConfiguration],
  outputName: 'outputName',

  // the properties below are optional
  buffer: cdk.Duration.minutes(30),
  encryptionType: srtEncryptionType,
  latency: cdk.Duration.minutes(30),
  m2tsSettings: m2tsSettings,
};
```

## Properties

- `buffer`: [Duration](/cdk/api/v2/docs/aws-cdk-lib.Duration.html) — The output buffering.

  **Default:** service default

  Applied at millisecond granularity.

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

  MediaLive publishes each SRT output to one destination per pipeline (the console
  calls these "Destination A" and "Destination B"). Provide a single destination for a
  `SINGLE_PIPELINE` channel, or two (A then B) for a `STANDARD` channel. Each pipeline
  can target a different listener and carry its own encryption passphrase.

- `encodes`: [EncodeConfiguration](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.EncodeConfiguration.html)[] (required) — The encode configurations to wire to this output.

- `encryptionType`: [SrtEncryptionType](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.SrtEncryptionType.html) — The encryption type for the SRT output.

  **Default:** no encryption

- `latency`: [Duration](/cdk/api/v2/docs/aws-cdk-lib.Duration.html) — The SRT latency.

  **Default:** service default

- `m2tsSettings`: [M2tsSettings](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.M2tsSettings.html) — MPEG-TS (M2TS) container settings for this output.

  **Default:** service defaults

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

  Must be unique across all outputs in the channel.