# Multiple camera support

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Users can use both the front and back cameras of their Android mobile devices simultaneously using the methods provided by the Video SDK for Android. Multiple cameras can also be used while screen sharing.

To enumerate the available cameras and read each camera's `deviceId`, `deviceName`, and selection state, see [Get the camera list](/docs/video-sdk/android/video/camera-controls/#get-the-camera-list).

## Enable or disable a multi-camera stream

Pass a `deviceId` from the camera list to enable or disable that camera as a multi-stream.

```kotlin
val enableBOOLResult = ZoomVideoSDK.getInstance().getVideoHelper().enableMultiStreamVideo("cameraDeviceID", null)
val disableBOOLResult = ZoomVideoSDK.getInstance().getVideoHelper().disableMultiStreamVideo("cameraDeviceID")
```

```java
Boolean enableBOOLResult = ZoomVideoSDK.getInstance().getVideoHelper().enableMultiStreamVideo("cameraDeviceID", null);
Boolean disableBOOLResult = ZoomVideoSDK.getInstance().getVideoHelper().disableMultiStreamVideo("cameraDeviceID");
```

Enable and disable both fire `onMultiCameraStreamStatusChanged`. For the callback overloads, see [Multi-camera stream status](/docs/video-sdk/android/video/video-events/#multi-camera-stream-status).

## Mute or unmute a multi-camera stream

Mute or unmute an active multi-camera stream by its `deviceId`.

```kotlin
val muteBOOLResult = ZoomVideoSDK.getInstance().getVideoHelper().muteMultiStreamVideo("cameraDeviceID")
val unmuteBOOLResult = ZoomVideoSDK.getInstance().getVideoHelper().unmuteMultiStreamVideo("cameraDeviceID")
```

```java
Boolean muteBOOLResult = ZoomVideoSDK.getInstance().getVideoHelper().muteMultiStreamVideo("cameraDeviceID");
Boolean unmuteBOOLResult = ZoomVideoSDK.getInstance().getVideoHelper().unmuteMultiStreamVideo("cameraDeviceID");
```

## Map a pipe or canvas back to a device ID

To find the `deviceId` for a multi-camera pipe or canvas, use `getDeviceIDByMyPipe` or `getDeviceIDByMyCanvas`. For more on handling raw data, see [Raw data](/docs/video-sdk/android/raw-data/).

```kotlin
val localUser = ZoomVideoSDK.getInstance().session.mySelf

// Get the user's multi camera stream - ZoomVideoSDKRawDataPipe
val pipeList = localUser.multiCameraStreamList
for (pipe in pipeList) {
    val deviceID = ZoomVideoSDK.getInstance().getVideoHelper().getDeviceIDByMyPipe(pipe)
}

// Get the user's multi camera canvas - ZoomVideoSDKVideoCanvas
val canvasList = localUser.multiCameraCanvasList
for (canvas in canvasList) {
    val deviceID = ZoomVideoSDK.getInstance().getVideoHelper().getDeviceIDByMyCanvas(canvas)
}
```

```java
ZoomVideoSDKUser localUser = ZoomVideoSDK.getInstance().getSession().getMySelf();

// Get the user's multi camera stream - ZoomVideoSDKRawDataPipe
List<ZoomVideoSDKRawDataPipe> pipeList = localUser.getMultiCameraStreamList();
for (ZoomVideoSDKRawDataPipe pipe : pipeList) {
    String deviceID = ZoomVideoSDK.getInstance().getVideoHelper().getDeviceIDByMyPipe(pipe);
}

// Get the user's multi camera canvas - ZoomVideoSDKVideoCanvas
List<ZoomVideoSDKVideoCanvas> canvasList = localUser.getMultiCameraCanvasList();
for (ZoomVideoSDKVideoCanvas canvas : canvasList) {
    String deviceID = ZoomVideoSDK.getInstance().getVideoHelper().getDeviceIDByMyCanvas(canvas);
}
```