# Access RGB Camera

## Device Compatibility

### Device Compatibility

The reliability of glasses' RGB Camera has been fully tested on the following Android phones:

* Oneplus: 9 / 9pro 
* Samsung: Galaxy S10+ / Galaxy S21 / Galaxy S21 Ultra 5G / Galaxy S21 5G / Galaxy S21 5G / Galaxy S20 Ultra 5G /  Galaxy S20+ 5G / Galaxy Note20 5G / Galaxy S21 5G / Galaxy Z Fold 3 5G / Galaxy S22 
* Sony: X1 iii
* LG: Wing / V50s        
* Arrows: NX9 
* OPPO: Find X2 pro / Find X5 pro

Glasses' RGB camera can also work on Android phones besides the above. However, the compatibility is not guaranteed. For the full list, please refer to[ Device Compatibility](/nrsdk/v1.10.2/nrsdk-fundamentals/xreal-devices/compatibility.md).

## Developer Guide

### Import the NRSDK

Import **NRSDKForUnity\_1.9.1.unitypackage** in the package.

### Open the Sample Scene

In the Unity Project window, you can find the CameraCaptureDemo sample in: `Assets > NRSDK >Demos > RGBCamera-Record.`

### Inspect the Sample Code

* See `CameraCaptureController.cs` , located in `Assets/NRSDK/Demos/RGBCamera/Scripts/CameraCaptureController.cs` for an example on how to get the texture of RGB Camera.

```csharp
public RawImage CaptureImage;

 private void Start()
 {
     RGBCamTexture = new NRRGBCamTexture();
     CaptureImage.texture = RGBCamTexture.GetTexture();
     RGBCamTexture.Play();
 }
```

* See `VideoCapture2LocalExample.cs`, located in `Assets/NRSDK/Demos/Record/Scripts`for an example on how to implement video capture

```csharp
// A video Capture Example
public class VideoCapture2LocalExample : MonoBehaviour
{
    /// <summary> The previewer. </summary>
 public NRPreviewer Previewer;
 public VideoRecordConfigPanel m_ConfigPanel;

 /// <summary> Save the video to Application.persistentDataPath. </summary>
 /// <value> The full pathname of the video save file. </value>
 public string VideoSavePath
 {
     get
     {
         string timeStamp = Time.time.ToString().Replace(".", "").Replace(":", "");
         string filename = string.Format("Nreal_Record_{0}.mp4", timeStamp);
         return Path.Combine(Application.persistentDataPath, filename);
     }
 }

 /// <summary> The video capture. </summary>
 NRVideoCapture m_VideoCapture = null;

 /// <summary> Starts this object. </summary>
 void Start()
 {
     CreateVideoCaptureTest();
 }

 /// <summary> Tests create video capture. </summary>
 void CreateVideoCaptureTest()
 {
     NRVideoCapture.CreateAsync(false, delegate (NRVideoCapture videoCapture)
     {
         NRDebugger.Info("Created VideoCapture Instance!");
         if (videoCapture != null)
         {
             m_VideoCapture = videoCapture;
         }
         else
         {
             NRDebugger.Error("Failed to create VideoCapture Instance!");
         }
     });
 }

 /// <summary> Starts video capture. </summary>
 public void StartVideoCapture()
 {
     if (m_VideoCapture != null)
     {
         CameraParameters cameraParameters = new CameraParameters();
         if (m_ConfigPanel == null)
         {
             Resolution cameraResolution = NRVideoCapture.SupportedResolutions.OrderByDescending((res) => res.width * res.height).First();
             cameraParameters.hologramOpacity = 0.0f;
             cameraParameters.frameRate = cameraResolution.refreshRate;
             cameraParameters.cameraResolutionWidth = cameraResolution.width;
             cameraParameters.cameraResolutionHeight = cameraResolution.height;
             cameraParameters.pixelFormat = CapturePixelFormat.BGRA32;
             // Set the blend mode.
             cameraParameters.blendMode = BlendMode.Blend;
             // Set audio state, audio record needs the permission of "android.permission.RECORD_AUDIO",
             // Add it to your "AndroidManifest.xml" file in "Assets/Plugin".
             cameraParameters.audioState = NRVideoCapture.AudioState.MicAudio;
         }
         else
         {
             cameraParameters = m_ConfigPanel.GetRecordConfigration();
         }

         m_VideoCapture.StartVideoModeAsync(cameraParameters, OnStartedVideoCaptureMode);
     }
 }

 /// <summary> Stops video capture. </summary>
 public void StopVideoCapture()
 {
     if (m_VideoCapture == null)
     {
         return;
     }

     NRDebugger.Info("Stop Video Capture!");
     m_VideoCapture.StopRecordingAsync(OnStoppedRecordingVideo);
     Previewer.SetData(m_VideoCapture.PreviewTexture, false);
 }

 /// <summary> Executes the 'started video capture mode' action. </summary>
 /// <param name="result"> The result.</param>
 void OnStartedVideoCaptureMode(NRVideoCapture.VideoCaptureResult result)
 {
     if (!result.success)
     {
         NRDebugger.Info("Started Video Capture Mode faild!");
         return;
     }

     NRDebugger.Info("Started Video Capture Mode!");
     m_VideoCapture.StartRecordingAsync(VideoSavePath, OnStartedRecordingVideo);
     // Set preview texture.
     Previewer.SetData(m_VideoCapture.PreviewTexture, true);
 }

 /// <summary> Executes the 'started recording video' action. </summary>
 /// <param name="result"> The result.</param>
 void OnStartedRecordingVideo(NRVideoCapture.VideoCaptureResult result)
 {
     if (!result.success)
     {
         NRDebugger.Info("Started Recording Video Faild!");
         return;
     }

     NRDebugger.Info("Started Recording Video!");
     if (m_ConfigPanel != null && m_ConfigPanel.UseGreenBackground)
     {
         // Set green background color.
         m_VideoCapture.GetContext().GetBehaviour().SetBackGroundColor(Color.green);
     }
 }

 /// <summary> Executes the 'stopped recording video' action. </summary>
 /// <param name="result"> The result.</param>
 void OnStoppedRecordingVideo(NRVideoCapture.VideoCaptureResult result)
 {
     if (!result.success)
     {
         NRDebugger.Info("Stopped Recording Video Faild!");
         return;
     }

     NRDebugger.Info("Stopped Recording Video!");
     m_VideoCapture.StopVideoModeAsync(OnStoppedVideoCaptureMode);
 }

 /// <summary> Executes the 'stopped video capture mode' action. </summary>
 /// <param name="result"> The result.</param>
 void OnStoppedVideoCaptureMode(NRVideoCapture.VideoCaptureResult result)
 {
     NRDebugger.Info("Stopped Video Capture Mode!");
 }
}
```

### Build and Run the Sample App

* Audio record needs the permission of “android.permission.RECORD\_AUDIO”, Add it to your “AndroidManifest.xml” file in “Assets/Plugin”.
* The **Previewer** is used to preview live images in real time, for debugging purposes. Click the **APP** key of the controller to show or hide it.
* Click the **Start** button to start video capture.
* Click the **Stop** button to stop video capture. It will save the video file to **“Application.persistentDataPath”** path.


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