# v1.audio_to_video
## Module Functions
### Audio-to-Video <a name="create"></a>
**What this API does**
Create the same Audio To Video you can make in the browser, but programmatically, so you can automate it, run it at scale, or connect it to your own app or workflow.
**Good for**
- Automation and batch processing
- Adding audio to video into apps, pipelines, or tools
**How it works (3 steps)**
1. Upload your inputs (video, image, or audio) with [Generate Upload URLs](https://docs.magichour.ai/api-reference/files/generate-asset-upload-urls) and copy the `file_path`.
2. Send a request to create a audio to video job with the basic fields.
3. Check the job status until it's `complete`, then download the result from `downloads`.
**Key options**
- Inputs: usually a file, sometimes a YouTube link, depending on project type
- Resolution: free users are limited to 576px; higher plans unlock HD and larger sizes
- Extra fields: e.g. `face_swap_mode`, `start_seconds`/`end_seconds`, or a text prompt
**Cost**\
Credits are only charged for the frames that actually render. You'll see an estimate when the job is queued, and the final total after it's done.
For detailed examples, see the [product page](https://magichour.ai/products/audio-to-video).
**API Endpoint**: `POST /v1/audio-to-video`
#### Parameters
| Parameter | Required | Description | Example |
| -------------------- | :------: | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- |
| `assets` | ✓ | Provide the audio file and an optional reference image. | `V1AudioToVideoCreateBodyAssets {audio_file_path: "api-assets/id/1234.mp3".to_string(), image_file_path: Some("api-assets/id/1234.png".to_string())}` |
| `└─ audio_file_path` | ✓ | The path of the audio file. This value is either - a direct URL to the video file - `file_path` field from the response of the [upload urls API](https://docs.magichour.ai/api-reference/files/generate-asset-upload-urls). See the [file upload guide](https://docs.magichour.ai/api-reference/files/generate-asset-upload-urls#input-file) for details. | `"api-assets/id/1234.mp3".to_string()` |
| `└─ image_file_path` | ✗ | Reference image for the initial frame of the video. This value is either - a direct URL to the video file - `file_path` field from the response of the [upload urls API](https://docs.magichour.ai/api-reference/files/generate-asset-upload-urls). See the [file upload guide](https://docs.magichour.ai/api-reference/files/generate-asset-upload-urls#input-file) for details. | `"api-assets/id/1234.png".to_string()` |
| `end_seconds` | ✓ | End time of your clip (seconds). Must be greater than start_seconds. | `15.0` |
| `name` | ✗ | Give your video a custom name for easy identification. | `"My Audio To Video video".to_string()` |
| `resolution` | ✗ | Output video resolution. Defaults to `720p` on paid tiers and `480p` on free tiers. | `V1AudioToVideoCreateBodyResolutionEnum::Enum720p` |
| `start_seconds` | ✗ | Start time of your clip (seconds). Must be ≥ 0. | `0.0` |
| `style` | ✗ | Attributes used to dictate the style of the output | `V1AudioToVideoCreateBodyStyle {prompt: Some("Car driving through a city".to_string())}` |
| `└─ prompt` | ✗ | Prompt to guide the visual style of the video. | `"Car driving through a city".to_string()` |
#### Example Snippet
```rust
let client = magic_hour::Client::default()
.with_bearer_auth(&std::env::var("API_TOKEN").unwrap());
let res = client
.v1()
.audio_to_video()
.create(magic_hour::resources::v1::audio_to_video::CreateRequest {
assets: magic_hour::models::V1AudioToVideoCreateBodyAssets {
audio_file_path: "api-assets/id/1234.mp3".to_string(),
image_file_path: Some("api-assets/id/1234.png".to_string()),
},
end_seconds: 15.0,
name: Some("My Audio To Video video".to_string()),
resolution: Some(
magic_hour::models::V1AudioToVideoCreateBodyResolutionEnum::Enum720p,
),
start_seconds: Some(0.0),
..Default::default()
})
.await;
```
#### Response
##### Type
[V1AudioToVideoCreateResponse](/src/models/v1_audio_to_video_create_response.rs)
##### Example
```rust
V1AudioToVideoCreateResponse {credits_charged: 450, estimated_frame_cost: 450, id: "cuid-example".to_string()}
```