camera: import CameraID tools (ebbff02a) · Commits · e / os / Camera

app/build.gradle

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		apply plugin: 'com.android.application'
		apply plugin: 'org.jetbrains.kotlin.android'

		android {
		compileSdkVersion 31
		@@ -11,7 +12,7 @@ android {

		defaultConfig {
		applicationId "foundation.e.camera"
		minSdkVersion 21
		minSdkVersion 25
		targetSdkVersion 31

		renderscriptTargetApi 21
		@@ -52,6 +53,7 @@ dependencies {
		implementation 'androidx.legacy:legacy-support-v4:1.0.0'
		implementation "androidx.constraintlayout:constraintlayout:2.1.3"
		implementation "org.greenrobot:eventbus:3.3.1"
		implementation 'androidx.core:core-ktx:1.8.0'
		androidTestImplementation 'androidx.test.ext:junit:1.1.3'

		// appcompat version must be 1.4.0 or later to satisfy emoji policy!

app/src/main/java/net/sourceforge/opencamera/camera2/CameraFinder.kt

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		package net.sourceforge.opencamera.camera2

		import android.graphics.ImageFormat
		import android.hardware.camera2.CameraCharacteristics
		import android.hardware.camera2.CameraManager
		import android.hardware.camera2.CameraMetadata
		import android.os.Build
		import android.util.Size
		import net.sourceforge.opencamera.camera2.model.Camera2ApiProperties
		import net.sourceforge.opencamera.camera2.model.CameraModel
		import net.sourceforge.opencamera.camera2.model.DerivedProperties
		import java.util.function.Consumer

		class CameraFinder(cameraManager: CameraManager) :
		CameraFinderAbstract<ArrayList<CameraModel>>(cameraManager) {
		init {
		cameraModels = ArrayList()
		}

		public override fun createModels() {
		validCameraIds.forEach(Consumer { cameraModels.add(CameraModel(it.toInt())) })
		cameraModels.forEach(Consumer {
		it.camera2ApiProperties = findProperties(it.id, getCameraCharacteristics(it.id)!!)
		})
		cameraModels.forEach(Consumer {
		it.derivedProperties = deriveProperties(it.id, it.camera2ApiProperties)
		})
		}

		public override fun findProperties(
		cameraId: Int, characteristics: CameraCharacteristics): Camera2ApiProperties {
		return Camera2ApiProperties(cameraId).apply {
		facing = characteristics.get(CameraCharacteristics.LENS_FACING)!!
		focalLength =
		characteristics.get(CameraCharacteristics.LENS_INFO_AVAILABLE_FOCAL_LENGTHS)!![0]
		aperture =
		characteristics.get(CameraCharacteristics.LENS_INFO_AVAILABLE_APERTURES)!![0]
		aeModes = characteristics.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_MODES)!!
		isFlashSupported = characteristics.get(
		CameraCharacteristics.FLASH_INFO_AVAILABLE)!!
		val configMap = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)
		if (configMap?.getOutputSizes(ImageFormat.RAW_SENSOR) != null) {
		rawSensorSizes = configMap.getOutputSizes(ImageFormat.RAW_SENSOR)
		}
		sensorSize = characteristics.get(
		CameraCharacteristics.SENSOR_INFO_PHYSICAL_SIZE)!!
		pixelArraySize = characteristics.get(
		CameraCharacteristics.SENSOR_INFO_PIXEL_ARRAY_SIZE)!!
		supportedHardwareLevel = characteristics.get(
		CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL)!!
		supportedHardwareLevelString = reflectionProvider.getResultFieldName(
		CameraMetadata::class.java,
		"INFO_SUPPORTED_HARDWARE_LEVEL_",
		supportedHardwareLevel
		)
		physicalIds = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
		characteristics.physicalCameraIds
		} else {
		setOf()
		}
		}
		}

		public override fun deriveProperties(
		cameraId: Int,
		camera2ApiProperties: Camera2ApiProperties
		): DerivedProperties {
		return DerivedProperties(cameraId).apply {
		facing = reflectionProvider.getResultFieldName(
		CameraMetadata::class.java,
		"LENS_FACING_",
		camera2ApiProperties.facing
		)
		isLogical = camera2ApiProperties.physicalIds.isNotEmpty()
		angleOfView = CameraUtil.calculateAngleOfView(
		camera2ApiProperties.focalLength,
		camera2ApiProperties.sensorSize,
		camera2ApiProperties.pixelArraySize
		)
		pixelSize = CameraUtil.calculatePixelSize(
		camera2ApiProperties.pixelArraySize.width,
		camera2ApiProperties.sensorSize.width
		)
		mm35FocalLength =
		CameraUtil.calculate35mmeqv(
		camera2ApiProperties.focalLength,
		camera2ApiProperties.sensorSize
		)
		}
		}
		}

app/src/main/java/net/sourceforge/opencamera/camera2/CameraFinderAbstract.kt

0 → 100644

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		package net.sourceforge.opencamera.camera2

		import android.hardware.camera2.CameraAccessException
		import android.hardware.camera2.CameraCharacteristics
		import android.hardware.camera2.CameraManager
		import net.sourceforge.opencamera.camera2.model.Camera2ApiProperties
		import net.sourceforge.opencamera.camera2.model.CameraModel
		import net.sourceforge.opencamera.camera2.model.DerivedProperties
		import java.util.*
		import java.util.stream.Collectors

		abstract class CameraFinderAbstract<T : Iterable<CameraModel>>(
		private val cameraManager: CameraManager
		) : CameraIDs.Finder<T> {
		protected val validCameraIds: MutableList<String> = ArrayList()
		protected val reflectionProvider = ReflectionProvider()
		override lateinit var cameraModels: T
		protected set

		override fun init() {
		scanCameras(cameraManager)
		createModels()
		}

		protected abstract fun createModels()
		protected abstract fun findProperties(
		cameraId: Int,
		characteristics: CameraCharacteristics
		): Camera2ApiProperties

		protected abstract fun deriveProperties(
		cameraId: Int,
		camera2ApiProperties: Camera2ApiProperties
		): DerivedProperties

		private fun scanCameras(cameraManager: CameraManager) {
		for (id in 0..511) {
		try {
		cameraManager.getCameraCharacteristics(id.toString())
		validCameraIds.add(id.toString())
		} catch (ignored: IllegalArgumentException) {
		} catch (e: Exception) {
		e.printStackTrace()
		}
		}
		}

		override fun getCameraCharacteristics(cameraId: Int): CameraCharacteristics? {
		try {
		return cameraManager.getCameraCharacteristics(cameraId.toString())
		} catch (e: CameraAccessException) {
		e.printStackTrace()
		}
		return null
		}

		override val apiCameraIdList: List<String>
		get() {
		try {
		return Arrays.stream(cameraManager.cameraIdList).collect(Collectors.toList())
		} catch (e: CameraAccessException) {
		e.printStackTrace()
		}
		return ArrayList()
		}
		override val allCameraIdList: List<String>
		get() = validCameraIds
		}

app/src/main/java/net/sourceforge/opencamera/camera2/CameraIDs.kt

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		package net.sourceforge.opencamera.camera2

		import android.hardware.camera2.CameraCharacteristics
		import net.sourceforge.opencamera.camera2.model.CameraModel

		interface CameraIDs {
		interface Finder<T : Iterable<CameraModel>> {
		fun init()
		fun getCameraCharacteristics(cameraId: Int): CameraCharacteristics?
		val cameraModels: T
		val apiCameraIdList: List<String>
		val allCameraIdList: List<String>
		}

		interface Identifier<T : Iterable<CameraModel>> {
		fun init()
		fun identifyCamera(cameraModels: T)
		}
		}

app/src/main/java/net/sourceforge/opencamera/camera2/CameraIdentifier.kt

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		package net.sourceforge.opencamera.camera2

		import android.hardware.camera2.CameraCharacteristics
		import net.sourceforge.opencamera.camera2.model.Camera2ApiProperties
		import net.sourceforge.opencamera.camera2.model.CameraModel
		import net.sourceforge.opencamera.camera2.model.CameraType
		import java.util.TreeSet
		import java.util.function.Consumer
		import kotlin.Comparator
		import kotlin.collections.ArrayList

		class CameraIdentifier(cameraModels: ArrayList<CameraModel>) :
		CameraIdentifierAbstract<ArrayList<CameraModel>>(cameraModels) {
		private val frontCameraModels = ArrayList<CameraModel>()
		private val backCameraModels = ArrayList<CameraModel>()
		private val widerThanMain = TreeSet(SORT_BY_ANGLE_OF_VIEW)
		private val narrowerThanMain = ArrayList<CameraModel>()
		private val propertiesArrayList = ArrayList<Camera2ApiProperties>()
		override fun init() {
		cameraModels.forEach(Consumer {
		propertiesArrayList.add(it.camera2ApiProperties)
		})
		frontOrBack(cameraModels)
		identifyCamera(frontCameraModels)
		identifyCamera(backCameraModels)
		}

		private fun frontOrBack(cameraModels: Collection<CameraModel>) {
		for (model in cameraModels) {
		if (model.camera2ApiProperties.facing == CameraCharacteristics.LENS_FACING_BACK) {
		backCameraModels.add(model)
		}
		if (model.camera2ApiProperties.facing == CameraCharacteristics.LENS_FACING_FRONT) {
		frontCameraModels.add(model)
		}
		}
		}

		override fun identifyCamera(cameraModels: ArrayList<CameraModel>) {
		if (cameraModels.isNotEmpty()) {
		val main = cameraModels[0]
		main.cameraType = CameraType.MAIN
		main.zoomFactor = 1f
		cameraModels.removeAt(0)

		//Determine whether camera is logical
		cameraModels.forEach(Consumer { model: CameraModel ->
		if (model.derivedProperties.isLogical \|\| getBit(6, model.id)) {
		model.cameraType = CameraType.LOGICAL
		}
		propertiesArrayList.forEach(Consumer {
		if (model.id != it.id && model.camera2ApiProperties == it) {
		model.cameraType = CameraType.LOGICAL
		}
		})
		})
		cameraModels.removeIf { it.isTypeSet }
		cameraModels.sortWith(SORT_BY_ANGLE_OF_VIEW)
		cameraModels.forEach(Consumer {
		val zoom =
		it.derivedProperties.mm35FocalLength / main.derivedProperties.mm35FocalLength
		it.zoomFactor = zoom

		//Determine whether camera is Depth or Other
		it.cameraType = CameraType.OTHER
		if (!it.camera2ApiProperties.isFlashSupported) {
		it.cameraType = CameraType.DEPTH
		} else {
		if (it.derivedProperties.angleOfView > main.derivedProperties.angleOfView) {
		widerThanMain.add(it)
		} else {
		narrowerThanMain.add(it)
		}
		}
		})

		//Determine whether camera is Ultrawide or Macro
		widerThanMain.forEach(Consumer {
		it.cameraType = if (
		it.derivedProperties.angleOfView ==
		widerThanMain.last().derivedProperties.angleOfView
		) {
		CameraType.ULTRAWIDE
		} else {
		CameraType.MACRO
		}
		})

		// Determine whether camera is Tele
		narrowerThanMain.forEach(Consumer { cameraModel: CameraModel ->
		cameraModel.cameraType = CameraType.TELE
		})
		}
		}

		private fun getBit(num: Int, `val`: Int): Boolean {
		return `val` shr num - 1 and 1 == 1
		}

		companion object {
		private val SORT_BY_ANGLE_OF_VIEW =
		Comparator.comparingDouble { cameraModel: CameraModel -> cameraModel.derivedProperties.angleOfView }
		}
		}