Learn how to use the WOWZCamera and WowzaGoCoder classes in the Wowza GoCoder™ SDK for Android to control cameras and microphones on a device.
Before you begin
Before adding the functionality below to your app, make sure you've set up the Wowza GoCoder SDK for your project:
- Request a free license and download the latest version of the SDK.
- Configure your Android Studio project to use the SDK.
See Download and install GoCoder SDK for Android for detailed instructions.
Control a camera
The WOWZCamera class controls the capabilities that vary between the device's two cameras.
Note: Most of the configuration options that don't vary are controlled by the WOWZCameraView class.
Determine camera capabilities
The WOWZCamera class uses the following methods to determine the capabilities supported by a particular camera:
| Method | Description |
| getSupportedFrameSizes() | Returns an array of the frame sizes that the camera supports. |
| hasCapability(WOWZCamera.TORCH) | Returns true if a camera has a flash (torch). |
| hasCapability(WOWZCamera.FOCUS_MODE_AUTO) | Returns true if the camera can auto-focus to a specified point location. |
| hasCapability(WOWZCamera.FOCUS_MODE_CONTINUOUS) | Returns true if the camera can continuously adjust the focus. |
The following example configures the WZCamera.TORCH method:
// Enable the flash if the current camera has a flashlight (torch) WOWZCamera activeCamera = this.goCoderCameraView.getCamera(); mBtnTorch.setEnabled(activeCamera.hasCapability(WOWZCamera.TORCH));
Control a camera flash
Use the isTorchOn and setTorchOn methods, respectively, to determine the state of the camera's flash and to turn it on and off.
// Turn the flash on if it's off WOWZCamera activeCamera = this.goCoderCameraView.getCamera(); if (!activeCamera.isTorchOn()) activeCamera.setTorchOn(mBtnTorch.toggleState());
Control a microphone
Use the muteAudio method of the WowzaGoCoder class to mute or pause audio while streaming.
// Mute the audio stream if it isn't already if (!this.goCoder.isMuted()) this.goCoder.muteAudio = newMutedState;
