In Android 9, camera devices can advertise
motion tracking capability.
Cameras that support this feature do not produce motion tracking data itself,
but instead are used by ARCore or an image-stabilization algorithm along with
other sensors for scene analysis. To support this feature, devices must support
If this intent is part of the capture request, the camera must limit the
exposure time to a maximum of 20 milliseconds to reduce motion blur.
Examples and source
A reference motion tracking implementation on the HAL side is available as part of the Camera HAL.
To enable motion tracking on a camera device, make sure:
ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MOTION_TRACKINGcapability is enabled.
ANDROID_CONTROL_CAPTURE_INTENT_MOTION_TRACKINGintent is supported and when included in a capture request limits the camera exposure time to a maximum of 20 milliseconds.
Lens calibration data from the following list is accurately reported in the static information and dynamic metadata fields:
Camera devices supporting the motion tracking feature must pass the camera CTS tests.