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

The input specification for a channel.

Use the static factory methods to select the input type — mirroring the console's
"Other" / "CDI" / "Elemental Link" choice.

- Stability: [Experimental](/cdk/api/stability.html)
- Source: [`lib/input-specification.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-medialive-alpha/lib/input-specification.ts#L140)

## 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';

declare const cdiInputResolution: medialive_alpha.CdiInputResolution;
declare const inputCodec: medialive_alpha.InputCodec;
declare const inputMaximumBitrate: medialive_alpha.InputMaximumBitrate;
declare const inputResolution: medialive_alpha.InputResolution;
const inputSpecification = medialive_alpha.InputSpecification.cdi(/* all optional props */ {
  cdiResolution: cdiInputResolution,
  codec: inputCodec,
  maximumBitrate: inputMaximumBitrate,
  resolution: inputResolution,
});
```

## Initializer

```ts
new InputSpecification()
```

## Methods

- `cdi(props?: CdiInputSpecificationProps): InputSpecification // chainable` (static) — CDI (uncompressed) inputs.

  Adds the maximum CDI input resolution.

- `elementalLink(): InputSpecification // chainable` (static) — Elemental Link inputs.

  No additional specification is required.

- `standard(props?: StandardInputSpecificationProps): InputSpecification // chainable` (static) — Standard inputs ("Other" in the console) — the most common case.