# Uploading and Analyzing Media

{% hint style="info" %}
Please note: this method only works if your SDK version is below 3.0.0. If it is 3.0.0 or higher, please use the methods listed above.
{% endhint %}

#### Server-Based Analyzes

Data to be uploaded and analyzed are stored in object results (see above), obtained after capturing and recording video. Upload it to the server and initiate the necessary analyses with the help of [Oz API](https://doc.ozforensics.com/oz-knowledge/guides/developer-guide/api/oz-api). 

A simple scenario of interaction with Oz API can be implemented with the `OZSDK.analyse` method as described below.

```objectivec
OZSDK.analyse(
  results: results,
    analyseStates: [.quality],
    fileUploadProgress: { (progress) in

    }
) { (resolution, error) in

}
```

The `completion` | `resolution` block will contain the result of the assigned analysis including status (status of the analysis), type (type of the analysis), and `folderID` (ID of the Oz API folder).

To perform a cross-functional analysis based on video and document photos, use the `OZSDK.documentAnalyse` method:

```objectivec
OZSDK.documentAnalyse(
  documentPhoto: DocumentPhoto(front: frontDocumentURL, back: backDocumentURL),
  results: results,
  scenarioState: { (state) in
  
  }, fileUploadProgress: { (progress) in

  }
) { (folderResolutionStatus, resolutions, error)

}
```

The `completion` | `resolution` block will contain the result of the assigned analysis (similar to `OZSDK.analyse`), where `folderResolutionStatus` is the general status of analyses for the folder.

For both documents and face check, you can use the `OZSDK.uploadAndAnalyse` method:

```
OZSDK.uploadAndAnalyse(results: results,
                    documentPhoto: DocumentPhoto(front: frontDocumentURL, back: backDocumentURL),
                    analysisTypes: [.quality],
                    metadata: nil,
                    scenarioState: { state in },
                    fileUploadProgress: { progress in }) { status, resolution, error in }) 
```

The `resolution` block will contain the result of the assigned analysis (similar to `OZSDK.analyse` and `OZSDK.documentAnalyse`).

#### On-Device Analyzes

The methods below are used to analyze media on the device.

Biometry:

```swift
OZSDK.runOnDeviceBiometryAnalysis(firstResult: firstResult, secondResult: secondResult, completion: { status, error in
//show result
})
```

Liveness:

```swift
OZSDK.runOnDeviceLivenessAnalysis(results: results, completion: {status, error in 
//show result
})
```