camera2: Implement request templates for LEGACY. (6a7d8c42) · Commits · e / os / android_frameworks_base

core/java/android/hardware/camera2/legacy/LegacyMetadataMapper.java

+111 −1

Original line number	Diff line number	Diff line
		@@ -27,6 +27,7 @@ import android.hardware.camera2.CameraMetadata;
		import android.hardware.camera2.CaptureRequest;
		import android.hardware.camera2.CaptureResult;
		import android.hardware.camera2.impl.CameraMetadataNative;
		import android.hardware.camera2.params.MeteringRectangle;
		import android.hardware.camera2.params.StreamConfiguration;
		import android.hardware.camera2.params.StreamConfigurationDuration;
		import android.hardware.camera2.utils.ArrayUtils;
		@@ -489,6 +490,9 @@ public class LegacyMetadataMapper {
		*/
		m.set(LENS_INFO_MINIMUM_FOCUS_DISTANCE, LENS_INFO_MINIMUM_FOCUS_DISTANCE_FIXED_FOCUS);
		}

		float[] focalLengths = new float[] { p.getFocalLength() };
		m.set(LENS_INFO_AVAILABLE_FOCAL_LENGTHS, focalLengths);
		}

		private static void mapFlash(CameraMetadataNative m, Camera.Parameters p) {
		@@ -877,6 +881,16 @@ public class LegacyMetadataMapper {
		LegacyRequestMapper.convertRequestMetadata(request);
		}

		private static final int[] sAllowedTemplates = {
		CameraDevice.TEMPLATE_PREVIEW,
		CameraDevice.TEMPLATE_STILL_CAPTURE,
		CameraDevice.TEMPLATE_RECORD,
		// Disallowed templates in legacy mode:
		// CameraDevice.TEMPLATE_VIDEO_SNAPSHOT,
		// CameraDevice.TEMPLATE_ZERO_SHUTTER_LAG,
		// CameraDevice.TEMPLATE_MANUAL
		};

		/**
		* Create a request template
		*
		@@ -891,7 +905,7 @@ public class LegacyMetadataMapper {
		*/
		public static CameraMetadataNative createRequestTemplate(
		CameraCharacteristics c, int templateId) {
		if (templateId < 0 \|\| templateId > CameraDevice.TEMPLATE_MANUAL) {
		if (!ArrayUtils.contains(sAllowedTemplates, templateId)) {
		throw new IllegalArgumentException("templateId out of range");
		}

		@@ -903,16 +917,58 @@ public class LegacyMetadataMapper {
		* to create our own templates in the framework
		*/

		/*
		* control.*
		*/

		if (LIE_ABOUT_AWB) {
		m.set(CaptureRequest.CONTROL_AWB_MODE, CameraMetadata.CONTROL_AWB_MODE_AUTO);
		} else {
		throw new AssertionError("Valid control.awbMode not implemented yet");
		}

		// control.aeAntibandingMode
		m.set(CaptureRequest.CONTROL_AE_ANTIBANDING_MODE, CONTROL_AE_ANTIBANDING_MODE_AUTO);

		// control.aeExposureCompensation
		m.set(CaptureRequest.CONTROL_AE_EXPOSURE_COMPENSATION, 0);

		// control.aeLock
		m.set(CaptureRequest.CONTROL_AE_LOCK, false);

		// control.aePrecaptureTrigger
		m.set(CaptureRequest.CONTROL_AE_PRECAPTURE_TRIGGER, CONTROL_AE_PRECAPTURE_TRIGGER_IDLE);

		// control.afTrigger
		m.set(CaptureRequest.CONTROL_AF_TRIGGER, CONTROL_AF_TRIGGER_IDLE);

		// control.awbMode
		m.set(CaptureRequest.CONTROL_AWB_MODE, CONTROL_AWB_MODE_AUTO);

		// control.awbLock
		m.set(CaptureRequest.CONTROL_AWB_LOCK, false);

		// control.aeRegions, control.awbRegions, control.afRegions
		{
		Rect activeArray = c.get(SENSOR_INFO_ACTIVE_ARRAY_SIZE);
		MeteringRectangle[] activeRegions = new MeteringRectangle[] {
		new MeteringRectangle(/x/0, /y/0, /width/activeArray.width() - 1,
		/height/activeArray.height() - 1,/weight/1)};
		m.set(CaptureRequest.CONTROL_AE_REGIONS, activeRegions);
		m.set(CaptureRequest.CONTROL_AWB_REGIONS, activeRegions);
		m.set(CaptureRequest.CONTROL_AF_REGIONS, activeRegions);
		}

		// control.captureIntent
		m.set(CaptureRequest.CONTROL_CAPTURE_INTENT, templateId);

		// control.aeMode
		m.set(CaptureRequest.CONTROL_AE_MODE, CameraMetadata.CONTROL_AE_MODE_ON);
		// AE is always unconditionally available in API1 devices

		// control.mode
		m.set(CaptureRequest.CONTROL_MODE, CONTROL_MODE_AUTO);

		// control.afMode
		{
		Float minimumFocusDistance = c.get(LENS_INFO_MINIMUM_FOCUS_DISTANCE);
		@@ -925,11 +981,65 @@ public class LegacyMetadataMapper {
		} else {
		// If a minimum focus distance is reported; the camera must have AF
		afMode = CameraMetadata.CONTROL_AF_MODE_AUTO;

		if (templateId == CameraDevice.TEMPLATE_RECORD \|\|
		templateId == CameraDevice.TEMPLATE_VIDEO_SNAPSHOT) {
		if (ArrayUtils.contains(c.get(CONTROL_AF_AVAILABLE_MODES),
		CONTROL_AF_MODE_CONTINUOUS_VIDEO)) {
		afMode = CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_VIDEO;
		}
		} else if (templateId == CameraDevice.TEMPLATE_PREVIEW \|\|
		templateId == CameraDevice.TEMPLATE_STILL_CAPTURE) {
		if (ArrayUtils.contains(c.get(CONTROL_AF_AVAILABLE_MODES),
		CONTROL_AF_MODE_CONTINUOUS_PICTURE)) {
		afMode = CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE;
		}
		}
		}

		m.set(CaptureRequest.CONTROL_AF_MODE, afMode);
		}

		{
		// control.aeTargetFpsRange
		Range<Integer>[] availableFpsRange = c.
		get(CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES);

		// Pick FPS range with highest max value, tiebreak on higher min value
		Range<Integer> bestRange = availableFpsRange[0];
		for (Range<Integer> r : availableFpsRange) {
		if (bestRange.getUpper() < r.getUpper()) {
		bestRange = r;
		} else if (bestRange.getUpper() == r.getUpper() &&
		bestRange.getLower() < r.getLower()) {
		bestRange = r;
		}
		}
		m.set(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE, bestRange);
		}

		/*
		* statistics.*
		*/

		// statistics.faceDetectMode
		m.set(CaptureRequest.STATISTICS_FACE_DETECT_MODE, STATISTICS_FACE_DETECT_MODE_OFF);

		/*
		* flash.*
		*/

		// flash.mode
		m.set(CaptureRequest.FLASH_MODE, FLASH_MODE_OFF);

		/*
		* lens.*
		*/

		// lens.focalLength
		m.set(CaptureRequest.LENS_FOCAL_LENGTH,
		c.get(CameraCharacteristics.LENS_INFO_AVAILABLE_FOCAL_LENGTHS)[0]);

		// TODO: map other request template values
		return m;
		}

core/java/android/hardware/camera2/legacy/LegacyRequestMapper.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -108,7 +108,12 @@ public class LegacyRequestMapper {
		{
		// aeRegions
		{
		// Use aeRegions if available, fall back to using awbRegions if present
		MeteringRectangle[] aeRegions = request.get(CONTROL_AE_REGIONS);
		if (request.get(CONTROL_AWB_REGIONS) != null) {
		Log.w(TAG, "convertRequestMetadata - control.awbRegions setting is not " +
		"supported, ignoring value");
		}
		int maxNumMeteringAreas = params.getMaxNumMeteringAreas();
		List<Camera.Area> meteringAreaList = convertMeteringRegionsToLegacy(
		activeArray, zoomData, aeRegions, maxNumMeteringAreas,

core/java/android/hardware/camera2/utils/ArrayUtils.java

+11 −0

Original line number	Diff line number	Diff line
		@@ -156,6 +156,17 @@ public class ArrayUtils {
		return arr;
		}

		/**
		* Returns true if the given {@code array} contains the given element.
		*
		* @param array {@code array} to check for {@code elem}
		* @param elem {@code elem} to test for
		* @return {@code true} if the given element is contained
		*/
		public static boolean contains(int[] array, int elem) {
		return getArrayIndex(array, elem) != -1;
		}

		private ArrayUtils() {
		throw new AssertionError();
		}