Android Camera2 example of judging whether the camera function is controllable

Android Camera2 adjustable function adaptation

First get the equipment level:

Float hardwareLevel = mCameracharacteristics.get(Cameracharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);

LEGACY < LIMITED < FULL < LEVEL_ 3. The more on the right, the greater the authority

•INFO_ SUPPORTED_ HARDWARE_ LEVEL_ LEGACY = 2 •INFO_ SUPPORTED_ HARDWARE_ LEVEL_ LIMITED = 0 •INFO_ SUPPORTED_ HARDWARE_ LEVEL_ FULL = 1 •INFO_ SUPPORTED_ HARDWARE_ LEVEL_ 3 = 3

There will be functions supported under the corresponding level, and legacy is the minimum permission

In Limited

android.request.availableCapabilities

Introduction: list of capabilities that this camera device advertisements as fully supporting

int[] ints = mCameracharacteristics.get(Cameracharacteristics.REQUEST_AVAILABLE_CAPABILITIES);

Possible values:

•BACKWARD_ COMPATIBLE •MANUAL_ SENSOR •MANUAL_ POST_ PROCESSING •RAW •PRIVATE_ REPROCESSING •READ_ SENSOR_ SETTINGS •BURST_ CAPTURE •YUV_ REPROCESSING •DEPTH_ OUTPUT •CONSTRAINED_ HIGH_ SPEED_ VIDEO

Examples of characteristic values corresponding to these values:

final String name3 = CaptureRequest.SENSOR_ FRAME_ DURATION.getName(); name3 -》android.sensor.frameDuration

Listing this means that if you want to know whether the device supports this function, you can get its package name through getname(), and then

mCameracharacteristics.getAvailableCaptureRequestKeys()； Find in the generated queue.

If there is a match, it is controllable;

CaptureRequest.LENS_ FOCUS_ DISTANCE； Adjust focus capturerequest.control_ AF_ MODE； Autofocus mode capturerequest.sensor_ Sensitivity adjustment ISO capturerequest.control_ AE_ Mode auto exposure mode

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