CameraCaptureSource

Content hint for downstream processing

Current camera device. This is only null if the phone/device doesn't have any cameras May be called regardless of whether start or stop has been called.

Current camera capture format. Actual format may be adjusted to use supported camera formats. May be called regardless of whether start or stop has been called.

Toggle for torch on the current device. Will succeed if current device has access to flashlight, otherwise will stay false. May be called regardless of whether start or stop has been called.

Add a capture source observer to receive callbacks from the source on lifecycle events which can be used to trigger UI. This observer is entirely optional.

Add a video sink which will immediately begin to receive new frames.

Remove a capture source observer

Remove a video sink which will no longer receive new frames on return

Set max resolution for video capture source DefaultCameraCaptureSource and DefaultScreenCaptureSource call this function to set max resolution for camera and screen capture

Start capturing on this source and emitting video frames

Stop capturing on this source and cease emitting video frames

Helper function to switch from front to back cameras or reverse. This also switches from any external cameras to the front camera.