feat: Implement atomically single-lock core/ library on Android (#2049)

* feat: Create base for `CameraConfiguration` diff

* Fix

* Write three configure methods

* Build?

* MOre

* Update CameraView+RecordVideo.kt

* Fix errors

* Update CameraDeviceDetails.kt

* Update CameraSession.kt

* Auto-resize Preview View

* More

* Make it work? idk

* Format

* Call `configure` under mutex, and change isActive

* fix: Make Outputs comparable

* fix: Make CodeScanner comparable

* Format

* fix: Update outputs after reconfiguring

* Update CameraPage.tsx

* fix: Close CaptureSession before

package/android/src/main/java/com/mrousavy/camera/CameraView+RecordVideo.kt

@@ -23,10 +23,12 @@ suspend fun CameraView.startRecording(options: ReadableMap, onRecordCallback: Ca
     }
   }
 
-  if (options.hasKey("flash")) {
+  val enableFlash = options.getString("flash") == "on"
-    val enableFlash = options.getString("flash") == "on"
+  if (enableFlash) {
     // overrides current torch mode value to enable flash while recording
-    cameraSession.setTorchMode(enableFlash)
+    cameraSession.configure { config ->
+      config.torch = Torch.ON
+    }
   }
   var codec = VideoCodec.H264
   if (options.hasKey("videoCodec")) {
@@ -67,5 +69,8 @@ suspend fun CameraView.resumeRecording() {
 @SuppressLint("RestrictedApi")
 suspend fun CameraView.stopRecording() {
   cameraSession.stopRecording()
-  cameraSession.setTorchMode(torch == Torch.ON)
+  // Set torch back to it's original value in case we just used it as a flash for the recording.
+  cameraSession.configure { config ->
+    config.torch = torch
+  }
 }

package/android/src/main/java/com/mrousavy/camera/CameraView+TakePhoto.kt

@@ -41,7 +41,7 @@ suspend fun CameraView.takePhoto(optionsMap: ReadableMap): WritableMap {
     enableShutterSound,
     enableAutoRedEyeReduction,
     enableAutoStabilization,
-    outputOrientation
+    orientation
   )
 
   photo.use {

package/android/src/main/java/com/mrousavy/camera/CameraView.kt

@@ -1,31 +1,20 @@
 package com.mrousavy.camera
 
-import android.Manifest
 import android.annotation.SuppressLint
 import android.content.Context
-import android.content.pm.PackageManager
 import android.hardware.camera2.CameraManager
 import android.util.Log
-import android.util.Size
-import android.view.Gravity
 import android.view.ScaleGestureDetector
-import android.view.Surface
 import android.widget.FrameLayout
-import androidx.core.content.ContextCompat
 import com.facebook.react.bridge.ReadableMap
-import com.facebook.react.bridge.UiThreadUtil
+import com.google.mlkit.vision.barcode.common.Barcode
-import com.mrousavy.camera.core.CameraPermissionError
+import com.mrousavy.camera.core.CameraConfiguration
 import com.mrousavy.camera.core.CameraQueues
 import com.mrousavy.camera.core.CameraSession
-import com.mrousavy.camera.core.NoCameraDeviceError
 import com.mrousavy.camera.core.PreviewView
-import com.mrousavy.camera.core.outputs.CameraOutputs
-import com.mrousavy.camera.extensions.bigger
-import com.mrousavy.camera.extensions.containsAny
-import com.mrousavy.camera.extensions.getPreviewTargetSize
 import com.mrousavy.camera.extensions.installHierarchyFitter
-import com.mrousavy.camera.extensions.smaller
 import com.mrousavy.camera.frameprocessor.FrameProcessor
+import com.mrousavy.camera.types.CameraDeviceFormat
 import com.mrousavy.camera.types.CodeScannerOptions
 import com.mrousavy.camera.types.Orientation
 import com.mrousavy.camera.types.PixelFormat
@@ -48,19 +37,23 @@ import kotlinx.coroutines.launch
 @SuppressLint("ClickableViewAccessibility", "ViewConstructor", "MissingPermission")
 class CameraView(context: Context) :
   FrameLayout(context),
-  CoroutineScope {
+  CoroutineScope,
+  CameraSession.CameraSessionCallback {
   companion object {
     const val TAG = "CameraView"
-
-    private val propsThatRequirePreviewReconfiguration = arrayListOf("cameraId", "format", "resizeMode")
-    private val propsThatRequireSessionReconfiguration =
-      arrayListOf("cameraId", "format", "photo", "video", "enableFrameProcessor", "codeScannerOptions", "pixelFormat")
-    private val propsThatRequireFormatReconfiguration = arrayListOf("fps", "hdr", "videoStabilizationMode", "lowLightBoost")
   }
 
   // react properties
   // props that require reconfiguring
   var cameraId: String? = null
+    set(value) {
+      if (value != null) {
+        // TODO: Move this into CameraSession
+        val f = if (format != null) CameraDeviceFormat.fromJSValue(format!!) else null
+        previewView.resizeToInputCamera(value, cameraManager, f)
+      }
+      field = value
+    }
   var enableDepthData = false
   var enableHighQualityPhotos: Boolean? = null
   var enablePortraitEffectsMatteDelivery = false
@@ -74,7 +67,6 @@ class CameraView(context: Context) :
 
   // props that require format reconfiguring
   var format: ReadableMap? = null
-  var resizeMode: ResizeMode = ResizeMode.COVER
   var fps: Int? = null
   var videoStabilizationMode: VideoStabilizationMode? = null
   var hdr: Boolean? = null // nullable bool
@@ -84,8 +76,17 @@ class CameraView(context: Context) :
   var isActive = false
   var torch: Torch = Torch.OFF
   var zoom: Float = 1f // in "factor"
-  var orientation: Orientation? = null
+  var orientation: Orientation = Orientation.PORTRAIT
   var enableZoomGesture: Boolean = false
+    set(value) {
+      field = value
+      updateZoomGesture()
+    }
+  var resizeMode: ResizeMode = ResizeMode.COVER
+    set(value) {
+      previewView.resizeMode = value
+      field = value
+    }
 
   // code scanner
   var codeScannerOptions: CodeScannerOptions? = null
@@ -96,8 +97,7 @@ class CameraView(context: Context) :
 
   // session
   internal val cameraSession: CameraSession
-  private var previewView: PreviewView? = null
+  private val previewView: PreviewView
-  private var previewSurface: Surface? = null
 
   internal var frameProcessor: FrameProcessor? = null
     set(value) {
@@ -105,167 +105,100 @@ class CameraView(context: Context) :
       cameraSession.frameProcessor = frameProcessor
     }
 
-  private val inputOrientation: Orientation
-    get() = cameraSession.orientation
-  internal val outputOrientation: Orientation
-    get() = orientation ?: inputOrientation
-
   override val coroutineContext: CoroutineContext = CameraQueues.cameraQueue.coroutineDispatcher
 
   init {
     this.installHierarchyFitter()
     clipToOutline = true
-    setupPreviewView()
+    cameraSession = CameraSession(context, cameraManager, this)
-    cameraSession = CameraSession(context, cameraManager, { invokeOnInitialized() }, { error -> invokeOnError(error) })
+    previewView = cameraSession.createPreviewView(context)
+    addView(previewView)
   }
 
   override fun onAttachedToWindow() {
-    super.onAttachedToWindow()
     if (!isMounted) {
       isMounted = true
       invokeOnViewReady()
     }
-    launch { updateLifecycle() }
+    update()
+    super.onAttachedToWindow()
   }
 
   override fun onDetachedFromWindow() {
+    update()
     super.onDetachedFromWindow()
-    launch { updateLifecycle() }
   }
 
-  private fun getPreviewTargetSize(): Size {
+  fun update() {
-    val cameraId = cameraId ?: throw NoCameraDeviceError()
+    Log.i(TAG, "Updating CameraSession...")
-
-    val format = format
-    val targetPreviewSize = if (format != null) Size(format.getInt("videoWidth"), format.getInt("videoHeight")) else null
-    val formatAspectRatio = if (targetPreviewSize != null) targetPreviewSize.bigger.toDouble() / targetPreviewSize.smaller else null
-
-    return this.cameraManager.getCameraCharacteristics(cameraId).getPreviewTargetSize(formatAspectRatio)
-  }
-
-  private fun setupPreviewView() {
-    removeView(previewView)
-    this.previewSurface = null
-
-    if (cameraId == null) return
-
-    val previewView = PreviewView(context, this.getPreviewTargetSize(), resizeMode) { surface ->
-      previewSurface = surface
-      launch { configureSession() }
-    }
-    previewView.layoutParams = LayoutParams(
-      LayoutParams.MATCH_PARENT,
-      LayoutParams.MATCH_PARENT,
-      Gravity.CENTER
-    )
-    this.previewView = previewView
-    UiThreadUtil.runOnUiThread {
-      addView(previewView)
-    }
-  }
-
-  fun update(changedProps: ArrayList<String>) {
-    Log.i(TAG, "Props changed: $changedProps")
-    val shouldReconfigurePreview = changedProps.containsAny(propsThatRequirePreviewReconfiguration)
-    val shouldReconfigureSession = shouldReconfigurePreview || changedProps.containsAny(propsThatRequireSessionReconfiguration)
-    val shouldReconfigureFormat = shouldReconfigureSession || changedProps.containsAny(propsThatRequireFormatReconfiguration)
-    val shouldReconfigureZoom = shouldReconfigureSession || changedProps.contains("zoom")
-    val shouldReconfigureTorch = shouldReconfigureSession || changedProps.contains("torch")
-    val shouldCheckActive = shouldReconfigureFormat || changedProps.contains("isActive")
-    val shouldReconfigureZoomGesture = changedProps.contains("enableZoomGesture")
 
     launch {
-      try {
+      cameraSession.configure { config ->
-        // Expensive Calls
+        // Input Camera Device
-        if (shouldReconfigurePreview) {
+        config.cameraId = cameraId
-          setupPreviewView()
+
+        // Photo
+        if (photo == true) {
+          config.photo = CameraConfiguration.Output.Enabled.create(CameraConfiguration.Photo(Unit))
+        } else {
+          config.photo = CameraConfiguration.Output.Disabled.create()
         }
-        if (shouldReconfigureSession) {
+
-          configureSession()
+        // Video/Frame Processor
+        if (video == true || enableFrameProcessor) {
+          config.video = CameraConfiguration.Output.Enabled.create(
+            CameraConfiguration.Video(
+              pixelFormat,
+              enableFrameProcessor
+            )
+          )
+        } else {
+          config.video = CameraConfiguration.Output.Disabled.create()
         }
-        if (shouldReconfigureFormat) {
+
-          configureFormat()
+        // Audio
+        if (audio == true) {
+          config.audio = CameraConfiguration.Output.Enabled.create(CameraConfiguration.Audio(Unit))
+        } else {
+          config.audio = CameraConfiguration.Output.Disabled.create()
         }
-        if (shouldCheckActive) {
+
-          updateLifecycle()
+        // Code Scanner
+        val codeScanner = codeScannerOptions
+        if (codeScanner != null) {
+          config.codeScanner = CameraConfiguration.Output.Enabled.create(
+            CameraConfiguration.CodeScanner(codeScanner.codeTypes)
+          )
+        } else {
+          config.codeScanner = CameraConfiguration.Output.Disabled.create()
         }
-        // Fast Calls
+
-        if (shouldReconfigureZoom) {
+        // Orientation
-          updateZoom()
+        config.orientation = orientation
+
+        // Format
+        val format = format
+        if (format != null) {
+          config.format = CameraDeviceFormat.fromJSValue(format)
+        } else {
+          config.format = null
         }
-        if (shouldReconfigureTorch) {
+
-          updateTorch()
+        // Side-Props
-        }
+        config.fps = fps
-        if (shouldReconfigureZoomGesture) {
+        config.enableLowLightBoost = lowLightBoost ?: false
-          updateZoomGesture()
+        config.enableHdr = hdr ?: false
-        }
+        config.torch = torch
-      } catch (e: Throwable) {
+
-        Log.e(TAG, "update() threw: ${e.message}")
+        // Zoom
-        invokeOnError(e)
+        config.zoom = zoom
+
+        // isActive
+        config.isActive = isActive && isAttachedToWindow
       }
     }
   }
 
-  private suspend fun configureSession() {
-    try {
-      Log.i(TAG, "Configuring Camera Device...")
-
-      if (ContextCompat.checkSelfPermission(context, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
-        throw CameraPermissionError()
-      }
-      val cameraId = cameraId ?: throw NoCameraDeviceError()
-
-      val format = format
-      val targetVideoSize = if (format != null) Size(format.getInt("videoWidth"), format.getInt("videoHeight")) else null
-      val targetPhotoSize = if (format != null) Size(format.getInt("photoWidth"), format.getInt("photoHeight")) else null
-      // TODO: Allow previewSurface to be null/none
-      val previewSurface = previewSurface ?: return
-      val codeScannerOptions = codeScannerOptions
-
-      val previewOutput = CameraOutputs.PreviewOutput(previewSurface, previewView?.targetSize)
-      val photoOutput = if (photo == true) {
-        CameraOutputs.PhotoOutput(targetPhotoSize)
-      } else {
-        null
-      }
-      val videoOutput = if (video == true || enableFrameProcessor) {
-        CameraOutputs.VideoOutput(targetVideoSize, video == true, enableFrameProcessor, pixelFormat)
-      } else {
-        null
-      }
-      val codeScanner = if (codeScannerOptions != null) {
-        CameraOutputs.CodeScannerOutput(
-          codeScannerOptions,
-          { codes -> invokeOnCodeScanned(codes) },
-          { error -> invokeOnError(error) }
-        )
-      } else {
-        null
-      }
-
-      cameraSession.configureSession(cameraId, previewOutput, photoOutput, videoOutput, codeScanner)
-    } catch (e: Throwable) {
-      Log.e(TAG, "Failed to configure session: ${e.message}", e)
-      invokeOnError(e)
-    }
-  }
-
-  private suspend fun configureFormat() {
-    cameraSession.configureFormat(fps, videoStabilizationMode, hdr, lowLightBoost)
-  }
-
-  private suspend fun updateLifecycle() {
-    cameraSession.setIsActive(isActive && isAttachedToWindow)
-  }
-
-  private suspend fun updateZoom() {
-    cameraSession.setZoom(zoom)
-  }
-
-  private suspend fun updateTorch() {
-    cameraSession.setTorchMode(torch == Torch.ON)
-  }
-
   @SuppressLint("ClickableViewAccessibility")
   private fun updateZoomGesture() {
     if (enableZoomGesture) {
@@ -274,7 +207,7 @@ class CameraView(context: Context) :
         object : ScaleGestureDetector.SimpleOnScaleGestureListener() {
           override fun onScale(detector: ScaleGestureDetector): Boolean {
             zoom *= detector.scaleFactor
-            launch { updateZoom() }
+            update()
             return true
           }
         }
@@ -286,4 +219,16 @@ class CameraView(context: Context) :
       setOnTouchListener(null)
     }
   }
+
+  override fun onError(error: Throwable) {
+    invokeOnError(error)
+  }
+
+  override fun onInitialized() {
+    invokeOnInitialized()
+  }
+
+  override fun onCodeScanned(codes: List<Barcode>) {
+    invokeOnCodeScanned(codes)
+  }
 }

package/android/src/main/java/com/mrousavy/camera/CameraViewManager.kt

@@ -18,9 +18,7 @@ class CameraViewManager : ViewGroupManager<CameraView>() {
 
   override fun onAfterUpdateTransaction(view: CameraView) {
     super.onAfterUpdateTransaction(view)
-    val changedProps = cameraViewTransactions[view] ?: ArrayList()
+    view.update()
-    view.update(changedProps)
-    cameraViewTransactions.remove(view)
   }
 
   override fun getExportedCustomDirectEventTypeConstants(): MutableMap<String, Any>? =
@@ -35,108 +33,69 @@ class CameraViewManager : ViewGroupManager<CameraView>() {
 
   @ReactProp(name = "cameraId")
   fun setCameraId(view: CameraView, cameraId: String) {
-    if (view.cameraId != cameraId) {
-      addChangedPropToTransaction(view, "cameraId")
-    }
     view.cameraId = cameraId
   }
 
   @ReactProp(name = "photo")
   fun setPhoto(view: CameraView, photo: Boolean?) {
-    if (view.photo != photo) {
-      addChangedPropToTransaction(view, "photo")
-    }
     view.photo = photo
   }
 
   @ReactProp(name = "video")
   fun setVideo(view: CameraView, video: Boolean?) {
-    if (view.video != video) {
-      addChangedPropToTransaction(view, "video")
-    }
     view.video = video
   }
 
   @ReactProp(name = "audio")
   fun setAudio(view: CameraView, audio: Boolean?) {
-    if (view.audio != audio) {
-      addChangedPropToTransaction(view, "audio")
-    }
     view.audio = audio
   }
 
   @ReactProp(name = "enableFrameProcessor")
   fun setEnableFrameProcessor(view: CameraView, enableFrameProcessor: Boolean) {
-    if (view.enableFrameProcessor != enableFrameProcessor) {
-      addChangedPropToTransaction(view, "enableFrameProcessor")
-    }
     view.enableFrameProcessor = enableFrameProcessor
   }
 
   @ReactProp(name = "pixelFormat")
   fun setPixelFormat(view: CameraView, pixelFormat: String?) {
     val newPixelFormat = PixelFormat.fromUnionValue(pixelFormat)
-    if (view.pixelFormat != newPixelFormat) {
+    view.pixelFormat = newPixelFormat
-      addChangedPropToTransaction(view, "pixelFormat")
-    }
-    view.pixelFormat = newPixelFormat ?: PixelFormat.NATIVE
   }
 
   @ReactProp(name = "enableDepthData")
   fun setEnableDepthData(view: CameraView, enableDepthData: Boolean) {
-    if (view.enableDepthData != enableDepthData) {
-      addChangedPropToTransaction(view, "enableDepthData")
-    }
     view.enableDepthData = enableDepthData
   }
 
   @ReactProp(name = "enableZoomGesture")
   fun setEnableZoomGesture(view: CameraView, enableZoomGesture: Boolean) {
-    if (view.enableZoomGesture != enableZoomGesture) {
-      addChangedPropToTransaction(view, "enableZoomGesture")
-    }
     view.enableZoomGesture = enableZoomGesture
   }
 
   @ReactProp(name = "videoStabilizationMode")
   fun setVideoStabilizationMode(view: CameraView, videoStabilizationMode: String?) {
     val newMode = VideoStabilizationMode.fromUnionValue(videoStabilizationMode)
-    if (view.videoStabilizationMode != newMode) {
-      addChangedPropToTransaction(view, "videoStabilizationMode")
-    }
     view.videoStabilizationMode = newMode
   }
 
   @ReactProp(name = "enableHighQualityPhotos")
   fun setEnableHighQualityPhotos(view: CameraView, enableHighQualityPhotos: Boolean?) {
-    if (view.enableHighQualityPhotos != enableHighQualityPhotos) {
-      addChangedPropToTransaction(view, "enableHighQualityPhotos")
-    }
     view.enableHighQualityPhotos = enableHighQualityPhotos
   }
 
   @ReactProp(name = "enablePortraitEffectsMatteDelivery")
   fun setEnablePortraitEffectsMatteDelivery(view: CameraView, enablePortraitEffectsMatteDelivery: Boolean) {
-    if (view.enablePortraitEffectsMatteDelivery != enablePortraitEffectsMatteDelivery) {
-      addChangedPropToTransaction(view, "enablePortraitEffectsMatteDelivery")
-    }
     view.enablePortraitEffectsMatteDelivery = enablePortraitEffectsMatteDelivery
   }
 
   @ReactProp(name = "format")
   fun setFormat(view: CameraView, format: ReadableMap?) {
-    if (view.format != format) {
-      addChangedPropToTransaction(view, "format")
-    }
     view.format = format
   }
 
   @ReactProp(name = "resizeMode")
   fun setResizeMode(view: CameraView, resizeMode: String) {
     val newMode = ResizeMode.fromUnionValue(resizeMode)
-    if (view.resizeMode != newMode) {
-      addChangedPropToTransaction(view, "resizeMode")
-    }
     view.resizeMode = newMode
   }
 
@@ -145,82 +104,49 @@ class CameraViewManager : ViewGroupManager<CameraView>() {
   // of type "Int?" the react bridge throws an error.
   @ReactProp(name = "fps", defaultInt = -1)
   fun setFps(view: CameraView, fps: Int) {
-    if (view.fps != fps) {
-      addChangedPropToTransaction(view, "fps")
-    }
     view.fps = if (fps > 0) fps else null
   }
 
   @ReactProp(name = "hdr")
   fun setHdr(view: CameraView, hdr: Boolean?) {
-    if (view.hdr != hdr) {
-      addChangedPropToTransaction(view, "hdr")
-    }
     view.hdr = hdr
   }
 
   @ReactProp(name = "lowLightBoost")
   fun setLowLightBoost(view: CameraView, lowLightBoost: Boolean?) {
-    if (view.lowLightBoost != lowLightBoost) {
-      addChangedPropToTransaction(view, "lowLightBoost")
-    }
     view.lowLightBoost = lowLightBoost
   }
 
   @ReactProp(name = "isActive")
   fun setIsActive(view: CameraView, isActive: Boolean) {
-    if (view.isActive != isActive) {
-      addChangedPropToTransaction(view, "isActive")
-    }
     view.isActive = isActive
   }
 
   @ReactProp(name = "torch")
   fun setTorch(view: CameraView, torch: String) {
     val newMode = Torch.fromUnionValue(torch)
-    if (view.torch != newMode) {
-      addChangedPropToTransaction(view, "torch")
-    }
     view.torch = newMode
   }
 
   @ReactProp(name = "zoom")
   fun setZoom(view: CameraView, zoom: Double) {
     val zoomFloat = zoom.toFloat()
-    if (view.zoom != zoomFloat) {
-      addChangedPropToTransaction(view, "zoom")
-    }
     view.zoom = zoomFloat
   }
 
   @ReactProp(name = "orientation")
   fun setOrientation(view: CameraView, orientation: String?) {
     val newMode = Orientation.fromUnionValue(orientation)
-    if (view.orientation != newMode) {
-      addChangedPropToTransaction(view, "orientation")
-    }
     view.orientation = newMode
   }
 
   @ReactProp(name = "codeScannerOptions")
   fun setCodeScanner(view: CameraView, codeScannerOptions: ReadableMap) {
     val newCodeScannerOptions = CodeScannerOptions(codeScannerOptions)
-    if (view.codeScannerOptions != newCodeScannerOptions) {
-      addChangedPropToTransaction(view, "codeScannerOptions")
-    }
     view.codeScannerOptions = newCodeScannerOptions
   }
 
   companion object {
     const val TAG = "CameraView"
-
-    val cameraViewTransactions: HashMap<CameraView, ArrayList<String>> = HashMap()
-
-    private fun addChangedPropToTransaction(view: CameraView, changedProp: String) {
-      if (cameraViewTransactions[view] == null) {
-        cameraViewTransactions[view] = ArrayList()
-      }
-      cameraViewTransactions[view]!!.add(changedProp)
-    }
   }
 }

package/android/src/main/java/com/mrousavy/camera/core/CameraConfiguration.kt

@@ -0,0 +1,103 @@
+package com.mrousavy.camera.core
+
+import android.view.Surface
+import com.mrousavy.camera.types.CameraDeviceFormat
+import com.mrousavy.camera.types.CodeType
+import com.mrousavy.camera.types.Orientation
+import com.mrousavy.camera.types.PixelFormat
+import com.mrousavy.camera.types.Torch
+import com.mrousavy.camera.types.VideoStabilizationMode
+
+data class CameraConfiguration(
+  // Input
+  var cameraId: String? = null,
+
+  // Outputs
+  var preview: Output<Preview> = Output.Disabled.create(),
+  var photo: Output<Photo> = Output.Disabled.create(),
+  var video: Output<Video> = Output.Disabled.create(),
+  var codeScanner: Output<CodeScanner> = Output.Disabled.create(),
+  var enableHdr: Boolean = false,
+
+  // Orientation
+  var orientation: Orientation = Orientation.PORTRAIT,
+
+  // Format
+  var format: CameraDeviceFormat? = null,
+
+  // Side-Props
+  var fps: Int? = null,
+  var enableLowLightBoost: Boolean = false,
+  var torch: Torch = Torch.OFF,
+  var videoStabilizationMode: VideoStabilizationMode = VideoStabilizationMode.OFF,
+
+  // Zoom
+  var zoom: Float = 1f,
+
+  // isActive (Start/Stop)
+  var isActive: Boolean = false,
+
+  // Audio Session
+  var audio: Output<Audio> = Output.Disabled.create()
+) {
+
+  // Output<T> types, those need to be comparable
+  data class CodeScanner(val codeTypes: List<CodeType>)
+  data class Photo(val nothing: Unit)
+  data class Video(val pixelFormat: PixelFormat, val enableFrameProcessor: Boolean)
+  data class Audio(val nothing: Unit)
+  data class Preview(val surface: Surface)
+
+  @Suppress("EqualsOrHashCode")
+  sealed class Output<T> {
+    val isEnabled: Boolean
+      get() = this is Enabled<*>
+    class Disabled<T> private constructor() : Output<T>() {
+      override fun equals(other: Any?): Boolean = other is Disabled<*>
+      companion object {
+        fun <T> create(): Disabled<T> = Disabled()
+      }
+    }
+    class Enabled<T> private constructor(val config: T) : Output<T>() {
+      override fun equals(other: Any?): Boolean = other is Enabled<*> && config == other.config
+      companion object {
+        fun <T> create(config: T): Enabled<T> = Enabled(config)
+      }
+    }
+  }
+
+  data class Difference(
+    // Input Camera (cameraId and isActive)
+    val deviceChanged: Boolean,
+    // Outputs & Session (Photo, Video, CodeScanner, HDR, Format)
+    val outputsChanged: Boolean,
+    // Side-Props for CaptureRequest (fps, low-light-boost, torch, zoom, videoStabilization)
+    val sidePropsChanged: Boolean
+  ) {
+    val hasAnyDifference: Boolean
+      get() = sidePropsChanged || outputsChanged || deviceChanged
+  }
+
+  companion object {
+    fun copyOf(other: CameraConfiguration?): CameraConfiguration = other?.copy() ?: CameraConfiguration()
+
+    fun difference(left: CameraConfiguration?, right: CameraConfiguration): Difference {
+      val deviceChanged = left?.cameraId != right.cameraId
+
+      val outputsChanged = deviceChanged || // input device
+        left?.photo != right.photo || left.video != right.video || left.codeScanner != right.codeScanner ||
+        left.preview != right.preview || // outputs
+        left.enableHdr != right.enableHdr || left.format != right.format // props that affect the outputs (hdr, format, ..)
+
+      val sidePropsChanged = outputsChanged || // depend on outputs
+        left?.torch != right.torch || left.enableLowLightBoost != right.enableLowLightBoost || left.fps != right.fps ||
+        left.zoom != right.zoom || left.videoStabilizationMode != right.videoStabilizationMode || left.isActive != right.isActive
+
+      return Difference(
+        deviceChanged,
+        outputsChanged,
+        sidePropsChanged
+      )
+    }
+  }
+}

package/android/src/main/java/com/mrousavy/camera/core/CameraDeviceDetails.kt

@@ -14,6 +14,7 @@ import com.facebook.react.bridge.ReadableMap
 import com.mrousavy.camera.extensions.bigger
 import com.mrousavy.camera.extensions.getPhotoSizes
 import com.mrousavy.camera.extensions.getVideoSizes
+import com.mrousavy.camera.types.AutoFocusSystem
 import com.mrousavy.camera.types.HardwareLevel
 import com.mrousavy.camera.types.LensFacing
 import com.mrousavy.camera.types.Orientation
@@ -175,11 +176,12 @@ class CameraDeviceDetails(private val cameraManager: CameraManager, private val
     map.putInt("maxISO", isoRange.upper)
     map.putInt("minFps", fpsRange.lower)
     map.putInt("maxFps", fpsRange.upper)
+    map.putDouble("maxZoom", maxZoom)
     map.putDouble("fieldOfView", getFieldOfView())
     map.putBoolean("supportsVideoHDR", supportsVideoHdr)
     map.putBoolean("supportsPhotoHDR", supportsPhotoHdr)
     map.putBoolean("supportsDepthCapture", supportsDepthCapture)
-    map.putString("autoFocusSystem", "contrast-detection") // TODO: Is this wrong?
+    map.putString("autoFocusSystem", AutoFocusSystem.CONTRAST_DETECTION.unionValue)
     map.putArray("videoStabilizationModes", createStabilizationModes())
     map.putArray("pixelFormats", createPixelFormats())
     return map

package/android/src/main/java/com/mrousavy/camera/core/CameraError.kt

@@ -1,6 +1,5 @@
 package com.mrousavy.camera.core
 
-import com.mrousavy.camera.core.outputs.CameraOutputs
 import com.mrousavy.camera.types.CameraDeviceError
 
 abstract class CameraError(
@@ -39,7 +38,7 @@ class MicrophonePermissionError :
   )
 class CameraPermissionError : CameraError("permission", "camera-permission-denied", "The Camera permission was denied!")
 
-class InvalidTypeScriptUnionError(unionName: String, unionValue: String) :
+class InvalidTypeScriptUnionError(unionName: String, unionValue: String?) :
   CameraError("parameter", "invalid-parameter", "The given value for $unionName could not be parsed! (Received: $unionValue)")
 
 class NoCameraDeviceError :
@@ -55,8 +54,8 @@ class CameraNotReadyError :
   CameraError("session", "camera-not-ready", "The Camera is not ready yet! Wait for the onInitialized() callback!")
 class CameraCannotBeOpenedError(cameraId: String, error: CameraDeviceError) :
   CameraError("session", "camera-cannot-be-opened", "The given Camera device (id: $cameraId) could not be opened! Error: $error")
-class CameraSessionCannotBeConfiguredError(cameraId: String, outputs: CameraOutputs) :
+class CameraSessionCannotBeConfiguredError(cameraId: String) :
-  CameraError("session", "cannot-create-session", "Failed to create a Camera Session for Camera $cameraId! Outputs: $outputs")
+  CameraError("session", "cannot-create-session", "Failed to create a Camera Session for Camera $cameraId!")
 class CameraDisconnectedError(cameraId: String, error: CameraDeviceError) :
   CameraError("session", "camera-has-been-disconnected", "The given Camera device (id: $cameraId) has been disconnected! Error: $error")
 

package/android/src/main/java/com/mrousavy/camera/core/CameraSession.kt

@@ -1,6 +1,7 @@
 package com.mrousavy.camera.core
 
 import android.content.Context
+import android.graphics.ImageFormat
 import android.graphics.Point
 import android.hardware.camera2.CameraCaptureSession
 import android.hardware.camera2.CameraCharacteristics
@@ -11,38 +12,51 @@ import android.hardware.camera2.CaptureRequest
 import android.hardware.camera2.CaptureResult
 import android.hardware.camera2.TotalCaptureResult
 import android.hardware.camera2.params.MeteringRectangle
+import android.hardware.camera2.params.OutputConfiguration
 import android.media.Image
+import android.media.ImageReader
 import android.os.Build
 import android.util.Log
 import android.util.Range
 import android.util.Size
-import com.mrousavy.camera.CameraView
+import android.view.Surface
-import com.mrousavy.camera.core.outputs.CameraOutputs
+import android.view.SurfaceHolder
+import com.google.mlkit.vision.barcode.common.Barcode
+import com.mrousavy.camera.core.outputs.BarcodeScannerOutput
+import com.mrousavy.camera.core.outputs.PhotoOutput
+import com.mrousavy.camera.core.outputs.SurfaceOutput
+import com.mrousavy.camera.core.outputs.VideoPipelineOutput
+import com.mrousavy.camera.extensions.bigger
 import com.mrousavy.camera.extensions.capture
+import com.mrousavy.camera.extensions.closestToOrMax
 import com.mrousavy.camera.extensions.createCaptureSession
 import com.mrousavy.camera.extensions.createPhotoCaptureRequest
+import com.mrousavy.camera.extensions.getPhotoSizes
+import com.mrousavy.camera.extensions.getPreviewTargetSize
+import com.mrousavy.camera.extensions.getVideoSizes
 import com.mrousavy.camera.extensions.openCamera
 import com.mrousavy.camera.extensions.setZoom
+import com.mrousavy.camera.extensions.smaller
 import com.mrousavy.camera.frameprocessor.FrameProcessor
 import com.mrousavy.camera.types.Flash
 import com.mrousavy.camera.types.Orientation
 import com.mrousavy.camera.types.QualityPrioritization
+import com.mrousavy.camera.types.Torch
 import com.mrousavy.camera.types.VideoCodec
 import com.mrousavy.camera.types.VideoFileType
 import com.mrousavy.camera.types.VideoStabilizationMode
 import java.io.Closeable
 import java.util.concurrent.CancellationException
+import kotlin.coroutines.CoroutineContext
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
 
-class CameraSession(
+class CameraSession(private val context: Context, private val cameraManager: CameraManager, private val callback: CameraSessionCallback) :
-  private val context: Context,
-  private val cameraManager: CameraManager,
-  private val onInitialized: () -> Unit,
-  private val onError: (e: Throwable) -> Unit
-) : CameraManager.AvailabilityCallback(),
   Closeable,
-  CameraOutputs.Callback {
+  CoroutineScope {
   companion object {
     private const val TAG = "CameraSession"
 
@@ -50,43 +64,24 @@ class CameraSession(
     private val CAN_SET_FPS = !Build.MANUFACTURER.equals("samsung", true)
   }
 
-  data class CapturedPhoto(
+  // Camera Configuration
-    val image: Image,
+  private var configuration: CameraConfiguration? = null
-    val metadata: TotalCaptureResult,
-    val orientation: Orientation,
-    val isMirrored: Boolean,
-    val format: Int
-  ) : Closeable {
-    override fun close() {
-      image.close()
-    }
-  }
-
-  // setInput(..)
-  private var cameraId: String? = null
-
-  // setOutputs(..)
-  private var outputs: CameraOutputs? = null
-
-  // setIsActive(..)
-  private var isActive = false
-
-  // configureFormat(..)
-  private var fps: Int? = null
-  private var videoStabilizationMode: VideoStabilizationMode? = null
-  private var lowLightBoost: Boolean? = null
-  private var hdr: Boolean? = null
-
-  // zoom(..)
-  private var zoom: Float = 1.0f
 
+  // Camera State
   private var captureSession: CameraCaptureSession? = null
   private var cameraDevice: CameraDevice? = null
   private var previewRequest: CaptureRequest.Builder? = null
+  private var photoOutput: PhotoOutput? = null
+  private var videoOutput: VideoPipelineOutput? = null
+  private var previewOutput: SurfaceOutput? = null
+  private var codeScannerOutput: BarcodeScannerOutput? = null
+  private var previewView: PreviewView? = null
   private val photoOutputSynchronizer = PhotoOutputSynchronizer()
   private val mutex = Mutex()
   private var isRunning = false
-  private var enableTorch = false
+
+  override val coroutineContext: CoroutineContext
+    get() = CameraQueues.cameraQueue.coroutineDispatcher
 
   // Video Outputs
   private var recording: RecordingSession? = null
@@ -100,115 +95,341 @@ class CameraSession(
       updateVideoOutputs()
     }
 
-  init {
-    cameraManager.registerAvailabilityCallback(this, CameraQueues.cameraQueue.handler)
-  }
-
   override fun close() {
-    cameraManager.unregisterAvailabilityCallback(this)
+    runBlocking {
-    photoOutputSynchronizer.clear()
+      mutex.withLock {
-    captureSession?.close()
+        destroy()
-    cameraDevice?.close()
+        photoOutputSynchronizer.clear()
-    outputs?.close()
+      }
-    isRunning = false
+    }
   }
 
   val orientation: Orientation
     get() {
-      val cameraId = cameraId ?: return Orientation.PORTRAIT
+      val cameraId = configuration?.cameraId ?: return Orientation.PORTRAIT
       val characteristics = cameraManager.getCameraCharacteristics(cameraId)
       val sensorRotation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION) ?: 0
       return Orientation.fromRotationDegrees(sensorRotation)
     }
 
-  suspend fun configureSession(
+  suspend fun configure(lambda: (configuration: CameraConfiguration) -> Unit) {
-    cameraId: String,
+    mutex.withLock {
-    preview: CameraOutputs.PreviewOutput? = null,
+      Log.i(TAG, "Updating CameraSession Configuration...")
-    photo: CameraOutputs.PhotoOutput? = null,
+
-    video: CameraOutputs.VideoOutput? = null,
+      val config = CameraConfiguration.copyOf(this.configuration)
-    codeScanner: CameraOutputs.CodeScannerOutput? = null
+      lambda(config)
-  ) {
+      val diff = CameraConfiguration.difference(this.configuration, config)
-    Log.i(TAG, "Configuring Session for Camera $cameraId...")
+
-    val outputs = CameraOutputs(
+      if (!diff.hasAnyDifference) {
-      cameraId,
+        Log.w(TAG, "Called configure(...) but nothing changed...")
-      cameraManager,
+        return
-      preview,
+      }
-      photo,
+
-      video,
+      try {
-      codeScanner,
+        // Build up session or update any props
-      hdr == true,
+        if (diff.deviceChanged) {
-      this
+          // 1. cameraId changed, open device
-    )
+          configureCameraDevice(config)
-    if (this.cameraId == cameraId && this.outputs == outputs && isActive == isRunning) {
+        }
-      Log.i(TAG, "Nothing changed in configuration, canceling..")
+        if (diff.outputsChanged) {
+          // 2. outputs changed, build new session
+          configureOutputs(config)
+        }
+        if (diff.sidePropsChanged) {
+          // 3. zoom etc changed, update repeating request
+          configureCaptureRequest(config)
+        }
+
+        Log.i(TAG, "Successfully updated CameraSession Configuration! isActive: ${config.isActive}")
+        this.configuration = config
+      } catch (error: Throwable) {
+        Log.e(TAG, "Failed to configure CameraSession! Error: ${error.message}, Config-Diff: $diff", error)
+        callback.onError(error)
+      }
     }
-
-    // 1. Close previous outputs
-    this.outputs?.close()
-    // 2. Assign new outputs
-    this.outputs = outputs
-    // 3. Update with existing render targets (surfaces)
-    updateVideoOutputs()
-
-    this.cameraId = cameraId
-    startRunning()
   }
 
-  suspend fun configureFormat(
+  private fun destroy() {
-    fps: Int? = null,
+    Log.i(TAG, "Destroying session..")
-    videoStabilizationMode: VideoStabilizationMode? = null,
+    captureSession?.stopRepeating()
-    hdr: Boolean? = null,
+    captureSession?.close()
-    lowLightBoost: Boolean? = null
+    captureSession = null
-  ) {
-    Log.i(TAG, "Setting Format (fps: $fps | videoStabilization: $videoStabilizationMode | hdr: $hdr | lowLightBoost: $lowLightBoost)...")
-    this.fps = fps
-    this.videoStabilizationMode = videoStabilizationMode
-    this.hdr = hdr
-    this.lowLightBoost = lowLightBoost
 
-    var needsReconfiguration = false
+    cameraDevice?.close()
-    val currentOutputs = outputs
+    cameraDevice = null
-    if (currentOutputs != null && currentOutputs.enableHdr != hdr) {
+
-      // Update existing HDR for Outputs
+    previewOutput?.close()
-      this.outputs?.close()
+    previewOutput = null
-      this.outputs = CameraOutputs(
+    photoOutput?.close()
-        currentOutputs.cameraId,
+    photoOutput = null
-        cameraManager,
+    videoOutput?.close()
-        currentOutputs.preview,
+    videoOutput = null
-        currentOutputs.photo,
+    codeScannerOutput?.close()
-        currentOutputs.video,
+    codeScannerOutput = null
-        currentOutputs.codeScanner,
+
-        hdr,
+    isRunning = false
-        this
+  }
-      )
+
-      needsReconfiguration = true
+  fun createPreviewView(context: Context): PreviewView {
+    val previewView = PreviewView(
+      context,
+      object : SurfaceHolder.Callback {
+        override fun surfaceCreated(holder: SurfaceHolder) {
+          Log.i(TAG, "PreviewView Surface created! ${holder.surface}")
+          createPreviewOutput(holder.surface)
+        }
+
+        override fun surfaceChanged(holder: SurfaceHolder, format: Int, width: Int, height: Int) {
+          Log.i(TAG, "PreviewView Surface updated! ${holder.surface} $width x $height")
+        }
+
+        override fun surfaceDestroyed(holder: SurfaceHolder) {
+          Log.i(TAG, "PreviewView Surface destroyed! ${holder.surface}")
+          destroyPreviewOutputSync()
+        }
+      }
+    )
+    this.previewView = previewView
+    return previewView
+  }
+
+  private fun createPreviewOutput(surface: Surface) {
+    Log.i(TAG, "Setting Preview Output...")
+    launch {
+      configure { config ->
+        config.preview = CameraConfiguration.Output.Enabled.create(CameraConfiguration.Preview(surface))
+      }
     }
-    if (needsReconfiguration) {
+  }
-      startRunning()
+
-    } else {
+  private fun destroyPreviewOutputSync() {
-      updateRepeatingRequest()
+    Log.i(TAG, "Destroying Preview Output...")
+    runBlocking {
+      configure { config ->
+        config.preview = CameraConfiguration.Output.Disabled.create()
+      }
     }
   }
 
   /**
-   * Starts or stops the Camera.
+   * Set up the `CameraDevice` (`cameraId`)
    */
-  suspend fun setIsActive(isActive: Boolean) {
+  private suspend fun configureCameraDevice(configuration: CameraConfiguration) {
-    Log.i(TAG, "Setting isActive: $isActive (isRunning: $isRunning)")
+    val cameraId = configuration.cameraId ?: throw NoCameraDeviceError()
-    this.isActive = isActive
-    if (isActive == isRunning) return
 
-    if (isActive) {
+    Log.i(TAG, "Configuring Camera #$cameraId...")
-      startRunning()
+
-    } else {
+    cameraDevice?.close()
-      stopRunning()
+    cameraDevice = cameraManager.openCamera(cameraId, { device, error ->
-    }
+      if (this.cameraDevice == device) {
+        Log.e(TAG, "Camera Device $device has been disconnected!", error)
+        callback.onError(error)
+      } else {
+        // a previous device has been disconnected, but we already have a new one.
+        // this is just normal behavior
+      }
+    }, CameraQueues.cameraQueue)
+
+    // Update PreviewView's Surface Size to a supported value from this Capture Device
+    previewView?.resizeToInputCamera(cameraId, cameraManager, configuration.format)
+
+    Log.i(TAG, "Successfully configured Camera #$cameraId!")
   }
 
-  private fun updateVideoOutputs() {
+  /**
-    val videoPipeline = outputs?.videoOutput?.videoPipeline ?: return
+   * Set up the `CaptureSession` with all outputs (preview, photo, video, codeScanner) and their HDR/Format settings.
-    videoPipeline.setRecordingSessionOutput(this.recording)
+   */
-    videoPipeline.setFrameProcessorOutput(this.frameProcessor)
+  private suspend fun configureOutputs(configuration: CameraConfiguration) {
+    val cameraDevice = cameraDevice ?: throw NoCameraDeviceError()
+    val characteristics = cameraManager.getCameraCharacteristics(cameraDevice.id)
+    val format = configuration.format
+
+    Log.i(TAG, "Configuring Session for Camera #${cameraDevice.id}...")
+
+    // TODO: Do we want to skip this is this.cameraSession already contains all outputs?
+    // Destroy previous CaptureSession
+    captureSession?.close()
+    captureSession = null
+    // Destroy previous outputs
+    photoOutput?.close()
+    photoOutput = null
+    videoOutput?.close()
+    videoOutput = null
+    previewOutput?.close()
+    previewOutput = null
+    codeScannerOutput?.close()
+    codeScannerOutput = null
+
+    val isSelfie = characteristics.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT
+
+    val outputs = mutableListOf<OutputConfiguration>()
+
+    // Photo Output
+    val photo = configuration.photo as? CameraConfiguration.Output.Enabled<CameraConfiguration.Photo>
+    if (photo != null) {
+      val imageFormat = ImageFormat.JPEG
+      val sizes = characteristics.getPhotoSizes(imageFormat)
+      val size = sizes.closestToOrMax(format?.photoSize)
+      val maxImages = 3
+
+      Log.i(TAG, "Adding ${size.width} x ${size.height} Photo Output in Format #$imageFormat...")
+      val imageReader = ImageReader.newInstance(size.width, size.height, imageFormat, maxImages)
+      imageReader.setOnImageAvailableListener({ reader ->
+        Log.i(TAG, "Photo Captured!")
+        val image = reader.acquireLatestImage()
+        onPhotoCaptured(image)
+      }, CameraQueues.cameraQueue.handler)
+      val output = PhotoOutput(imageReader, configuration.enableHdr)
+      outputs.add(output.toOutputConfiguration(characteristics))
+      photoOutput = output
+    }
+
+    // Video Output
+    val video = configuration.video as? CameraConfiguration.Output.Enabled<CameraConfiguration.Video>
+    if (video != null) {
+      val imageFormat = video.config.pixelFormat.toImageFormat()
+      val sizes = characteristics.getVideoSizes(cameraDevice.id, imageFormat)
+      val size = sizes.closestToOrMax(format?.videoSize)
+
+      Log.i(TAG, "Adding ${size.width} x ${size.height} Video Output in Format #$imageFormat...")
+      val videoPipeline = VideoPipeline(
+        size.width,
+        size.height,
+        video.config.pixelFormat,
+        isSelfie,
+        video.config.enableFrameProcessor
+      )
+      val output = VideoPipelineOutput(videoPipeline, configuration.enableHdr)
+      outputs.add(output.toOutputConfiguration(characteristics))
+      videoOutput = output
+    }
+
+    // Preview Output
+    val preview = configuration.preview as? CameraConfiguration.Output.Enabled<CameraConfiguration.Preview>
+    if (preview != null) {
+      // Compute Preview Size based on chosen video size
+      val videoSize = videoOutput?.size ?: format?.videoSize
+      val size = if (videoSize != null) {
+        val formatAspectRatio = videoSize.bigger.toDouble() / videoSize.smaller
+        characteristics.getPreviewTargetSize(formatAspectRatio)
+      } else {
+        characteristics.getPreviewTargetSize(null)
+      }
+
+      Log.i(TAG, "Adding ${size.width} x ${size.height} Preview Output...")
+      val output = SurfaceOutput(
+        preview.config.surface,
+        size,
+        SurfaceOutput.OutputType.PREVIEW,
+        configuration.enableHdr
+      )
+      outputs.add(output.toOutputConfiguration(characteristics))
+      previewOutput = output
+      previewView?.size = size
+    }
+
+    // CodeScanner Output
+    val codeScanner = configuration.codeScanner as? CameraConfiguration.Output.Enabled<CameraConfiguration.CodeScanner>
+    if (codeScanner != null) {
+      val imageFormat = ImageFormat.YUV_420_888
+      val sizes = characteristics.getVideoSizes(cameraDevice.id, imageFormat)
+      val size = sizes.closestToOrMax(Size(1280, 720))
+
+      Log.i(TAG, "Adding ${size.width} x ${size.height} CodeScanner Output in Format #$imageFormat...")
+      val pipeline = CodeScannerPipeline(size, imageFormat, codeScanner.config, callback)
+      val output = BarcodeScannerOutput(pipeline)
+      outputs.add(output.toOutputConfiguration(characteristics))
+      codeScannerOutput = output
+    }
+
+    // Create new session
+    captureSession = cameraDevice.createCaptureSession(cameraManager, outputs, { session ->
+      if (this.captureSession == session) {
+        Log.i(TAG, "Camera Session $session has been closed!")
+        isRunning = false
+      }
+    }, CameraQueues.cameraQueue)
+
+    Log.i(TAG, "Successfully configured Session with ${outputs.size} outputs for Camera #${cameraDevice.id}!")
+    callback.onInitialized()
+
+    // Update Frame Processor and RecordingSession for newly changed output
+    updateVideoOutputs()
+  }
+
+  private fun configureCaptureRequest(config: CameraConfiguration) {
+    val device = cameraDevice ?: throw NoCameraDeviceError()
+    val captureSession = captureSession ?: throw CameraNotReadyError()
+
+    if (!config.isActive) {
+      // TODO: Do we want to do stopRepeating() or entirely destroy the session?
+      // If the Camera is not active, we don't do anything.
+      captureSession.stopRepeating()
+      return
+    }
+
+    val cameraCharacteristics = cameraManager.getCameraCharacteristics(device.id)
+
+    val template = if (config.video.isEnabled) CameraDevice.TEMPLATE_RECORD else CameraDevice.TEMPLATE_PREVIEW
+    val captureRequest = device.createCaptureRequest(template)
+
+    previewOutput?.let { output ->
+      captureRequest.addTarget(output.surface)
+    }
+    videoOutput?.let { output ->
+      captureRequest.addTarget(output.surface)
+    }
+
+    // Set FPS
+    // TODO: Check if the FPS range is actually supported in the current configuration.
+    val fps = config.fps
+    if (fps != null && CAN_SET_FPS) {
+      captureRequest.set(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE, Range(fps, fps))
+    }
+
+    // Set Video Stabilization
+    when (config.videoStabilizationMode) {
+      VideoStabilizationMode.OFF -> {
+        // do nothing
+      }
+      VideoStabilizationMode.STANDARD -> {
+        // TODO: Check if that stabilization mode is even supported
+        val mode = if (Build.VERSION.SDK_INT >=
+          Build.VERSION_CODES.TIRAMISU
+        ) {
+          CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE_PREVIEW_STABILIZATION
+        } else {
+          CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE_ON
+        }
+        captureRequest.set(CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE, mode)
+      }
+      VideoStabilizationMode.CINEMATIC, VideoStabilizationMode.CINEMATIC_EXTENDED -> {
+        // TODO: Check if that stabilization mode is even supported
+        captureRequest.set(CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE, CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE_ON)
+      }
+    }
+
+    // Set HDR
+    // TODO: Check if that value is even supported
+    if (config.enableHdr) {
+      captureRequest.set(CaptureRequest.CONTROL_SCENE_MODE, CaptureRequest.CONTROL_SCENE_MODE_HDR)
+    } else if (config.enableLowLightBoost) {
+      captureRequest.set(CaptureRequest.CONTROL_SCENE_MODE, CaptureRequest.CONTROL_SCENE_MODE_NIGHT)
+    }
+
+    // Set Zoom
+    // TODO: Check if that zoom value is even supported
+    captureRequest.setZoom(config.zoom, cameraCharacteristics)
+
+    // Set Torch
+    // TODO: Check if torch is even supported
+    if (config.torch == Torch.ON) {
+      captureRequest.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_TORCH)
+    }
+
+    // Start repeating request if the Camera is active
+    val request = captureRequest.build()
+    captureSession.setRepeatingRequest(request, null, null)
   }
 
   suspend fun takePhoto(
@@ -220,12 +441,12 @@ class CameraSession(
     outputOrientation: Orientation
   ): CapturedPhoto {
     val captureSession = captureSession ?: throw CameraNotReadyError()
-    val outputs = outputs ?: throw CameraNotReadyError()
+    val photoOutput = photoOutput ?: throw PhotoNotEnabledError()
-
-    val photoOutput = outputs.photoOutput ?: throw PhotoNotEnabledError()
 
     Log.i(TAG, "Photo capture 0/3 - preparing capture request (${photoOutput.size.width}x${photoOutput.size.height})...")
 
+    val zoom = configuration?.zoom ?: 1f
+
     val cameraCharacteristics = cameraManager.getCameraCharacteristics(captureSession.device.id)
     val orientation = outputOrientation.toSensorRelativeOrientation(cameraCharacteristics)
     val captureRequest = captureSession.device.createPhotoCaptureRequest(
@@ -254,11 +475,18 @@ class CameraSession(
     }
   }
 
-  override fun onPhotoCaptured(image: Image) {
+  private fun onPhotoCaptured(image: Image) {
-    Log.i(CameraView.TAG, "Photo captured! ${image.width} x ${image.height}")
+    Log.i(TAG, "Photo captured! ${image.width} x ${image.height}")
     photoOutputSynchronizer.set(image.timestamp, image)
   }
 
+  private fun updateVideoOutputs() {
+    val videoOutput = videoOutput ?: return
+    Log.i(TAG, "Updating Video Outputs...")
+    videoOutput.videoPipeline.setFrameProcessorOutput(frameProcessor)
+    videoOutput.videoPipeline.setRecordingSessionOutput(recording)
+  }
+
   suspend fun startRecording(
     enableAudio: Boolean,
     codec: VideoCodec,
@@ -269,8 +497,9 @@ class CameraSession(
   ) {
     mutex.withLock {
       if (recording != null) throw RecordingInProgressError()
-      val outputs = outputs ?: throw CameraNotReadyError()
+      val videoOutput = videoOutput ?: throw VideoNotEnabledError()
-      val videoOutput = outputs.videoOutput ?: throw VideoNotEnabledError()
+
+      val fps = configuration?.fps ?: 30
 
       val recording =
         RecordingSession(context, videoOutput.size, enableAudio, fps, codec, orientation, fileType, bitRate, callback, onError)
@@ -302,23 +531,9 @@ class CameraSession(
     }
   }
 
-  suspend fun setTorchMode(enableTorch: Boolean) {
-    if (this.enableTorch != enableTorch) {
-      this.enableTorch = enableTorch
-      updateRepeatingRequest()
-    }
-  }
-
-  suspend fun setZoom(zoom: Float) {
-    if (this.zoom != zoom) {
-      this.zoom = zoom
-      updateRepeatingRequest()
-    }
-  }
-
   suspend fun focus(x: Int, y: Int) {
     val captureSession = captureSession ?: throw CameraNotReadyError()
-    val previewOutput = outputs?.previewOutput ?: throw CameraNotReadyError()
+    val previewOutput = previewOutput ?: throw CameraNotReadyError()
     val characteristics = cameraManager.getCameraCharacteristics(captureSession.device.id)
     val sensorSize = characteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE)!!
     val previewSize = previewOutput.size
@@ -330,18 +545,9 @@ class CameraSession(
     focus(point)
   }
 
-  override fun onCameraAvailable(cameraId: String) {
-    super.onCameraAvailable(cameraId)
-    Log.i(TAG, "Camera became available: $cameraId")
-  }
-
-  override fun onCameraUnavailable(cameraId: String) {
-    super.onCameraUnavailable(cameraId)
-    Log.i(TAG, "Camera became un-available: $cameraId")
-  }
-
   private suspend fun focus(point: Point) {
     mutex.withLock {
+      // TODO: Fix this method
       val captureSession = captureSession ?: throw CameraNotReadyError()
       val request = previewRequest ?: throw CameraNotReadyError()
 
@@ -373,207 +579,21 @@ class CameraSession(
     }
   }
 
-  /**
+  data class CapturedPhoto(
-   * Opens a [CameraDevice]. If there already is an open Camera for the given [cameraId], use that.
+    val image: Image,
-   */
+    val metadata: TotalCaptureResult,
-  private suspend fun getCameraDevice(cameraId: String, onClosed: (error: Throwable) -> Unit): CameraDevice {
+    val orientation: Orientation,
-    val currentDevice = cameraDevice
+    val isMirrored: Boolean,
-    if (currentDevice?.id == cameraId) {
+    val format: Int
-      // We already opened that device
+  ) : Closeable {
-      return currentDevice
+    override fun close() {
-    }
+      image.close()
-    // Close previous device
-    cameraDevice?.close()
-    cameraDevice = null
-
-    val device = cameraManager.openCamera(cameraId, { camera, reason ->
-      Log.d(TAG, "Camera Closed ($cameraDevice == $camera)")
-      if (cameraDevice == camera) {
-        // The current CameraDevice has been closed, handle that!
-        onClosed(reason)
-        cameraDevice = null
-      } else {
-        // A new CameraDevice has been opened, we don't care about this one anymore.
-      }
-    }, CameraQueues.cameraQueue)
-
-    // Cache device in memory
-    cameraDevice = device
-    return device
-  }
-
-  // Caches the result of outputs.hashCode() of the last getCaptureSession call
-  private var lastOutputsHashCode: Int? = null
-
-  private suspend fun getCaptureSession(cameraDevice: CameraDevice, outputs: CameraOutputs, onClosed: () -> Unit): CameraCaptureSession {
-    val currentSession = captureSession
-    if (currentSession?.device == cameraDevice && outputs.hashCode() == lastOutputsHashCode) {
-      // We already opened a CameraCaptureSession on this device
-      return currentSession
-    }
-    captureSession?.close()
-    captureSession = null
-
-    val session = cameraDevice.createCaptureSession(cameraManager, outputs, { session ->
-      Log.d(TAG, "Capture Session Closed ($captureSession == $session)")
-      if (captureSession == session) {
-        // The current CameraCaptureSession has been closed, handle that!
-        onClosed()
-        captureSession = null
-      } else {
-        // A new CameraCaptureSession has been opened, we don't care about this one anymore.
-      }
-    }, CameraQueues.cameraQueue)
-
-    // Cache session in memory
-    captureSession = session
-    lastOutputsHashCode = outputs.hashCode()
-    // New session initialized
-    onInitialized()
-    return session
-  }
-
-  private fun getPreviewCaptureRequest(
-    fps: Int? = null,
-    videoStabilizationMode: VideoStabilizationMode? = null,
-    lowLightBoost: Boolean? = null,
-    hdr: Boolean? = null,
-    torch: Boolean? = null
-  ): CaptureRequest {
-    val captureRequest = previewRequest ?: throw CameraNotReadyError()
-
-    // FPS
-    val fpsRange = if (fps != null && CAN_SET_FPS) Range(fps, fps) else Range(30, 30)
-    captureRequest.set(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE, fpsRange)
-
-    // Video Stabilization
-    captureRequest.set(CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE, videoStabilizationMode?.toDigitalStabilizationMode())
-    captureRequest.set(CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE, videoStabilizationMode?.toOpticalStabilizationMode())
-
-    // Night/HDR Mode
-    val sceneMode = if (hdr ==
-      true
-    ) {
-      CaptureRequest.CONTROL_SCENE_MODE_HDR
-    } else if (lowLightBoost == true) CaptureRequest.CONTROL_SCENE_MODE_NIGHT else null
-    captureRequest.set(CaptureRequest.CONTROL_SCENE_MODE, sceneMode)
-    captureRequest.set(
-      CaptureRequest.CONTROL_MODE,
-      if (sceneMode != null) CaptureRequest.CONTROL_MODE_USE_SCENE_MODE else CaptureRequest.CONTROL_MODE_AUTO
-    )
-
-    // Zoom
-    val cameraCharacteristics = cameraManager.getCameraCharacteristics(cameraId!!)
-    captureRequest.setZoom(zoom, cameraCharacteristics)
-
-    // Torch Mode
-    val torchMode = if (torch == true) CaptureRequest.FLASH_MODE_TORCH else CaptureRequest.FLASH_MODE_OFF
-    captureRequest.set(CaptureRequest.FLASH_MODE, torchMode)
-
-    return captureRequest.build()
-  }
-
-  private fun destroy() {
-    Log.i(TAG, "Destroying session..")
-    captureSession?.stopRepeating()
-    captureSession?.close()
-    captureSession = null
-
-    cameraDevice?.close()
-    cameraDevice = null
-
-    outputs?.close()
-    outputs = null
-
-    isRunning = false
-  }
-
-  private suspend fun startRunning() {
-    isRunning = false
-    val cameraId = cameraId ?: return
-    if (!isActive) return
-
-    Log.i(TAG, "Starting Camera Session...")
-
-    try {
-      mutex.withLock {
-        val outputs = outputs
-        if (outputs == null || outputs.size == 0) {
-          Log.i(TAG, "CameraSession doesn't have any Outputs, canceling..")
-          destroy()
-          return@withLock
-        }
-
-        // 1. Open Camera Device
-        val camera = getCameraDevice(cameraId) { reason ->
-          isRunning = false
-          onError(reason)
-        }
-
-        // 2. Create capture session with outputs
-        val session = getCaptureSession(camera, outputs) {
-          isRunning = false
-        }
-
-        // 3. Create request template
-        val template = if (outputs.videoOutput != null) CameraDevice.TEMPLATE_RECORD else CameraDevice.TEMPLATE_PREVIEW
-        val captureRequest = camera.createCaptureRequest(template)
-        outputs.previewOutput?.let { output ->
-          Log.i(TAG, "Adding preview output surface ${output.outputType}..")
-          captureRequest.addTarget(output.surface)
-        }
-        outputs.videoOutput?.let { output ->
-          Log.i(TAG, "Adding video output surface ${output.outputType}..")
-          captureRequest.addTarget(output.surface)
-        }
-        outputs.codeScannerOutput?.let { output ->
-          Log.i(TAG, "Adding code scanner output surface ${output.outputType}")
-          captureRequest.addTarget(output.surface)
-        }
-
-        Log.i(TAG, "Camera Session initialized! Starting repeating request..")
-        isRunning = true
-        this.previewRequest = captureRequest
-        this.captureSession = session
-        this.cameraDevice = camera
-      }
-
-      updateRepeatingRequest()
-    } catch (e: IllegalStateException) {
-      Log.e(TAG, "Failed to start Camera Session, this session is already closed.", e)
     }
   }
 
-  private suspend fun updateRepeatingRequest() {
+  interface CameraSessionCallback {
-    mutex.withLock {
+    fun onError(error: Throwable)
-      val session = captureSession
+    fun onInitialized()
-      if (session == null) {
+    fun onCodeScanned(codes: List<Barcode>)
-        // Not yet ready. Start session first, then it will update repeating request.
-        startRunning()
-        return
-      }
-
-      val fps = fps
-      val videoStabilizationMode = videoStabilizationMode
-      val lowLightBoost = lowLightBoost
-      val hdr = hdr
-      val enableTorch = enableTorch
-
-      val repeatingRequest = getPreviewCaptureRequest(fps, videoStabilizationMode, lowLightBoost, hdr, enableTorch)
-      Log.d(TAG, "Setting Repeating Request..")
-      session.setRepeatingRequest(repeatingRequest, null, null)
-    }
-  }
-
-  private suspend fun stopRunning() {
-    Log.i(TAG, "Stopping Camera Session...")
-    try {
-      mutex.withLock {
-        destroy()
-        Log.i(TAG, "Camera Session stopped!")
-      }
-    } catch (e: IllegalStateException) {
-      Log.e(TAG, "Failed to stop Camera Session, this session is already closed.", e)
-    }
   }
 }

package/android/src/main/java/com/mrousavy/camera/core/CodeScannerPipeline.kt

@@ -7,11 +7,15 @@ import com.google.mlkit.vision.barcode.BarcodeScanner
 import com.google.mlkit.vision.barcode.BarcodeScannerOptions
 import com.google.mlkit.vision.barcode.BarcodeScanning
 import com.google.mlkit.vision.common.InputImage
-import com.mrousavy.camera.core.outputs.CameraOutputs
 import com.mrousavy.camera.types.Orientation
 import java.io.Closeable
 
-class CodeScannerPipeline(val size: Size, val format: Int, val output: CameraOutputs.CodeScannerOutput) : Closeable {
+class CodeScannerPipeline(
+  val size: Size,
+  val format: Int,
+  val configuration: CameraConfiguration.CodeScanner,
+  val callback: CameraSession.CameraSessionCallback
+) : Closeable {
   companion object {
     // We want to have a buffer of 2 images, but we always only acquire one.
     // That way the pipeline is free to stream one frame into the unused buffer,
@@ -26,7 +30,7 @@ class CodeScannerPipeline(val size: Size, val format: Int, val output: CameraOut
     get() = imageReader.surface
 
   init {
-    val types = output.options.codeTypes.map { it.toBarcodeType() }
+    val types = configuration.codeTypes.map { it.toBarcodeType() }
     val barcodeScannerOptions = BarcodeScannerOptions.Builder()
       .setBarcodeFormats(types[0], *types.toIntArray())
       .build()
@@ -52,13 +56,13 @@ class CodeScannerPipeline(val size: Size, val format: Int, val output: CameraOut
           image.close()
           isBusy = false
           if (barcodes.isNotEmpty()) {
-            output.onCodeScanned(barcodes)
+            callback.onCodeScanned(barcodes)
           }
         }
         .addOnFailureListener { error ->
           image.close()
           isBusy = false
-          output.onError(error)
+          callback.onError(error)
         }
     }, CameraQueues.videoQueue.handler)
   }
@@ -69,7 +73,7 @@ class CodeScannerPipeline(val size: Size, val format: Int, val output: CameraOut
   }
 
   override fun toString(): String {
-    val codeTypes = output.options.codeTypes.joinToString(", ")
+    val codeTypes = configuration.codeTypes.joinToString(", ")
     return "${size.width} x ${size.height} CodeScanner for [$codeTypes] ($format)"
   }
 }

package/android/src/main/java/com/mrousavy/camera/core/PreviewView.kt

@@ -2,87 +2,89 @@ package com.mrousavy.camera.core
 
 import android.annotation.SuppressLint
 import android.content.Context
+import android.hardware.camera2.CameraManager
 import android.util.Log
 import android.util.Size
-import android.view.Surface
+import android.view.Gravity
 import android.view.SurfaceHolder
 import android.view.SurfaceView
+import android.widget.FrameLayout
+import com.mrousavy.camera.extensions.bigger
+import com.mrousavy.camera.extensions.getMaximumPreviewSize
+import com.mrousavy.camera.extensions.getPreviewTargetSize
+import com.mrousavy.camera.extensions.smaller
+import com.mrousavy.camera.types.CameraDeviceFormat
 import com.mrousavy.camera.types.ResizeMode
 import kotlin.math.roundToInt
 
 @SuppressLint("ViewConstructor")
-class PreviewView(
+class PreviewView(context: Context, callback: SurfaceHolder.Callback) : SurfaceView(context) {
-  context: Context,
+  var size: Size = getMaximumPreviewSize()
-  val targetSize: Size,
+    set(value) {
-  private val resizeMode: ResizeMode,
+      Log.i(TAG, "Resizing PreviewView to ${value.width} x ${value.height}...")
-  private val onSurfaceChanged: (surface: Surface?) -> Unit
+      holder.setFixedSize(value.width, value.height)
-) : SurfaceView(context) {
+      requestLayout()
+      invalidate()
+      field = value
+    }
+  var resizeMode: ResizeMode = ResizeMode.COVER
+    set(value) {
+      if (value != field) {
+        requestLayout()
+        invalidate()
+      }
+      field = value
+    }
 
   init {
-    Log.i(TAG, "Using Preview Size ${targetSize.width} x ${targetSize.height}.")
+    Log.i(TAG, "Creating PreviewView...")
-    holder.setFixedSize(targetSize.width, targetSize.height)
+    layoutParams = FrameLayout.LayoutParams(
-    holder.addCallback(object : SurfaceHolder.Callback {
+      FrameLayout.LayoutParams.MATCH_PARENT,
-      override fun surfaceCreated(holder: SurfaceHolder) {
+      FrameLayout.LayoutParams.MATCH_PARENT,
-        Log.i(TAG, "Surface created! ${holder.surface}")
+      Gravity.CENTER
-        onSurfaceChanged(holder.surface)
+    )
-      }
+    holder.addCallback(callback)
-
-      override fun surfaceChanged(holder: SurfaceHolder, format: Int, width: Int, height: Int) {
-        Log.i(TAG, "Surface resized! ${holder.surface} ($width x $height in format #$format)")
-      }
-
-      override fun surfaceDestroyed(holder: SurfaceHolder) {
-        Log.i(TAG, "Surface destroyed! ${holder.surface}")
-        onSurfaceChanged(null)
-      }
-    })
   }
 
-  private fun coverSize(contentSize: Size, containerWidth: Int, containerHeight: Int): Size {
+  fun resizeToInputCamera(cameraId: String, cameraManager: CameraManager, format: CameraDeviceFormat?) {
+    val characteristics = cameraManager.getCameraCharacteristics(cameraId)
+
+    val targetPreviewSize = format?.videoSize
+    val formatAspectRatio = if (targetPreviewSize != null) targetPreviewSize.bigger.toDouble() / targetPreviewSize.smaller else null
+    size = characteristics.getPreviewTargetSize(formatAspectRatio)
+  }
+
+  private fun getSize(contentSize: Size, containerSize: Size, resizeMode: ResizeMode): Size {
     val contentAspectRatio = contentSize.height.toDouble() / contentSize.width
-    val containerAspectRatio = containerWidth.toDouble() / containerHeight
+    val containerAspectRatio = containerSize.width.toDouble() / containerSize.height
 
-    Log.d(TAG, "coverSize :: $contentSize ($contentAspectRatio), ${containerWidth}x$containerHeight ($containerAspectRatio)")
+    Log.d(TAG, "coverSize :: $contentSize ($contentAspectRatio), ${containerSize.width}x${containerSize.height} ($containerAspectRatio)")
 
-    return if (contentAspectRatio > containerAspectRatio) {
+    val widthOverHeight = when (resizeMode) {
+      ResizeMode.COVER -> contentAspectRatio > containerAspectRatio
+      ResizeMode.CONTAIN -> contentAspectRatio < containerAspectRatio
+    }
+
+    return if (widthOverHeight) {
       // Scale by width to cover height
-      val scaledWidth = containerHeight * contentAspectRatio
+      val scaledWidth = containerSize.height * contentAspectRatio
-      Size(scaledWidth.roundToInt(), containerHeight)
+      Size(scaledWidth.roundToInt(), containerSize.height)
     } else {
       // Scale by height to cover width
-      val scaledHeight = containerWidth / contentAspectRatio
+      val scaledHeight = containerSize.width / contentAspectRatio
-      Size(containerWidth, scaledHeight.roundToInt())
+      Size(containerSize.width, scaledHeight.roundToInt())
-    }
-  }
-
-  private fun containSize(contentSize: Size, containerWidth: Int, containerHeight: Int): Size {
-    val contentAspectRatio = contentSize.height.toDouble() / contentSize.width
-    val containerAspectRatio = containerWidth.toDouble() / containerHeight
-
-    Log.d(TAG, "containSize :: $contentSize ($contentAspectRatio), ${containerWidth}x$containerHeight ($containerAspectRatio)")
-
-    return if (contentAspectRatio > containerAspectRatio) {
-      // Scale by height to fit within width
-      val scaledHeight = containerWidth / contentAspectRatio
-      return Size(containerWidth, scaledHeight.roundToInt())
-    } else {
-      // Scale by width to fit within height
-      val scaledWidth = containerHeight * contentAspectRatio
-      return Size(scaledWidth.roundToInt(), containerHeight)
     }
   }
 
+  @SuppressLint("DrawAllocation")
   override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
     super.onMeasure(widthMeasureSpec, heightMeasureSpec)
     val viewWidth = MeasureSpec.getSize(widthMeasureSpec)
     val viewHeight = MeasureSpec.getSize(heightMeasureSpec)
 
-    Log.d(TAG, "onMeasure($viewWidth, $viewHeight)")
+    Log.i(TAG, "PreviewView onMeasure($viewWidth, $viewHeight)")
 
-    val fittedSize = when (resizeMode) {
+    val fittedSize = getSize(size, Size(viewWidth, viewHeight), resizeMode)
-      ResizeMode.COVER -> this.coverSize(targetSize, viewWidth, viewHeight)
-      ResizeMode.CONTAIN -> this.containSize(targetSize, viewWidth, viewHeight)
-    }
 
     Log.d(TAG, "Fitted dimensions set: $fittedSize")
     setMeasuredDimension(fittedSize.width, fittedSize.height)

package/android/src/main/java/com/mrousavy/camera/core/VideoPipeline.kt

@@ -105,9 +105,7 @@ class VideoPipeline(
         Log.i(TAG, "ImageReader::onImageAvailable!")
         val image = reader.acquireNextImage() ?: return@setOnImageAvailableListener
 
-        Log.i(TAG, "Image Format: ${image.format}")
+        // TODO: Get correct orientation and isMirrored
-
-        // // TODO: Get correct orientation and isMirrored
         val frame = Frame(image, image.timestamp, Orientation.PORTRAIT, isMirrored)
         frame.incrementRefCount()
         frameProcessor?.call(frame)
@@ -177,7 +175,11 @@ class VideoPipeline(
    */
   fun setFrameProcessorOutput(frameProcessor: FrameProcessor?) {
     synchronized(this) {
-      Log.i(TAG, "Setting $width x $height FrameProcessor Output...")
+      if (frameProcessor != null) {
+        Log.i(TAG, "Setting $width x $height FrameProcessor Output...")
+      } else {
+        Log.i(TAG, "Removing FrameProcessor Output...")
+      }
       this.frameProcessor = frameProcessor
     }
   }
@@ -187,13 +189,14 @@ class VideoPipeline(
    */
   fun setRecordingSessionOutput(recordingSession: RecordingSession?) {
     synchronized(this) {
-      Log.i(TAG, "Setting $width x $height RecordingSession Output...")
       if (recordingSession != null) {
         // Configure OpenGL pipeline to stream Frames into the Recording Session's surface
+        Log.i(TAG, "Setting $width x $height RecordingSession Output...")
         setRecordingSessionOutputSurface(recordingSession.surface)
         this.recordingSession = recordingSession
       } else {
         // Configure OpenGL pipeline to stop streaming Frames into the Recording Session's surface
+        Log.i(TAG, "Removing RecordingSession Output...")
         removeRecordingSessionOutputSurface()
         this.recordingSession = null
       }

package/android/src/main/java/com/mrousavy/camera/core/outputs/CameraOutputs.kt

@@ -1,177 +0,0 @@
-package com.mrousavy.camera.core.outputs
-
-import android.graphics.ImageFormat
-import android.hardware.camera2.CameraCharacteristics
-import android.hardware.camera2.CameraManager
-import android.media.Image
-import android.media.ImageReader
-import android.util.Log
-import android.util.Size
-import android.view.Surface
-import com.google.mlkit.vision.barcode.common.Barcode
-import com.mrousavy.camera.core.CameraQueues
-import com.mrousavy.camera.core.CodeScannerPipeline
-import com.mrousavy.camera.core.VideoPipeline
-import com.mrousavy.camera.extensions.bigger
-import com.mrousavy.camera.extensions.closestToOrMax
-import com.mrousavy.camera.extensions.getPhotoSizes
-import com.mrousavy.camera.extensions.getPreviewTargetSize
-import com.mrousavy.camera.extensions.getVideoSizes
-import com.mrousavy.camera.extensions.smaller
-import com.mrousavy.camera.types.CodeScannerOptions
-import com.mrousavy.camera.types.PixelFormat
-import java.io.Closeable
-
-class CameraOutputs(
-  val cameraId: String,
-  cameraManager: CameraManager,
-  val preview: PreviewOutput? = null,
-  val photo: PhotoOutput? = null,
-  val video: VideoOutput? = null,
-  val codeScanner: CodeScannerOutput? = null,
-  val enableHdr: Boolean? = false,
-  val callback: Callback
-) : Closeable {
-  companion object {
-    private const val TAG = "CameraOutputs"
-    const val PHOTO_OUTPUT_BUFFER_SIZE = 3
-  }
-
-  data class PreviewOutput(val surface: Surface, val targetSize: Size? = null)
-  data class PhotoOutput(val targetSize: Size? = null, val format: Int = ImageFormat.JPEG)
-  data class VideoOutput(
-    val targetSize: Size? = null,
-    val enableRecording: Boolean = false,
-    val enableFrameProcessor: Boolean? = false,
-    val format: PixelFormat = PixelFormat.NATIVE
-  )
-  data class CodeScannerOutput(
-    val options: CodeScannerOptions,
-    val onCodeScanned: (codes: List<Barcode>) -> Unit,
-    val onError: (error: Throwable) -> Unit
-  )
-
-  interface Callback {
-    fun onPhotoCaptured(image: Image)
-  }
-
-  var previewOutput: SurfaceOutput? = null
-    private set
-  var photoOutput: ImageReaderOutput? = null
-    private set
-  var videoOutput: VideoPipelineOutput? = null
-    private set
-  var codeScannerOutput: BarcodeScannerOutput? = null
-    private set
-
-  val size: Int
-    get() {
-      var size = 0
-      if (previewOutput != null) size++
-      if (photoOutput != null) size++
-      if (videoOutput != null) size++
-      if (codeScannerOutput != null) size++
-      return size
-    }
-
-  override fun equals(other: Any?): Boolean {
-    if (other !is CameraOutputs) return false
-    return this.cameraId == other.cameraId &&
-      this.preview?.surface == other.preview?.surface &&
-      this.preview?.targetSize == other.preview?.targetSize &&
-      this.photo?.targetSize == other.photo?.targetSize &&
-      this.photo?.format == other.photo?.format &&
-      this.video?.enableRecording == other.video?.enableRecording &&
-      this.video?.targetSize == other.video?.targetSize &&
-      this.video?.format == other.video?.format &&
-      this.codeScanner?.options == other.codeScanner?.options &&
-      this.enableHdr == other.enableHdr
-  }
-
-  override fun hashCode(): Int {
-    var result = cameraId.hashCode()
-    result += (preview?.hashCode() ?: 0)
-    result += (photo?.hashCode() ?: 0)
-    result += (video?.hashCode() ?: 0)
-    result += (codeScanner?.hashCode() ?: 0)
-    return result
-  }
-
-  override fun close() {
-    previewOutput?.close()
-    photoOutput?.close()
-    videoOutput?.close()
-    codeScannerOutput?.close()
-  }
-
-  override fun toString(): String {
-    val strings = arrayListOf<String>()
-    previewOutput?.let { strings.add(it.toString()) }
-    photoOutput?.let { strings.add(it.toString()) }
-    videoOutput?.let { strings.add(it.toString()) }
-    codeScannerOutput?.let { strings.add(it.toString()) }
-    return strings.joinToString(", ", "[", "]")
-  }
-
-  init {
-    val characteristics = cameraManager.getCameraCharacteristics(cameraId)
-    val isMirrored = characteristics.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT
-
-    Log.i(TAG, "Preparing Outputs for Camera $cameraId...")
-
-    // Preview output: Low resolution repeating images (SurfaceView)
-    if (preview != null) {
-      Log.i(TAG, "Adding native preview view output.")
-      val previewSizeAspectRatio = if (preview.targetSize !=
-        null
-      ) {
-        preview.targetSize.bigger.toDouble() / preview.targetSize.smaller
-      } else {
-        null
-      }
-      previewOutput = SurfaceOutput(
-        preview.surface,
-        characteristics.getPreviewTargetSize(previewSizeAspectRatio),
-        SurfaceOutput.OutputType.PREVIEW
-      )
-    }
-
-    // Photo output: High quality still images (takePhoto())
-    if (photo != null) {
-      val size = characteristics.getPhotoSizes(photo.format).closestToOrMax(photo.targetSize)
-
-      val imageReader = ImageReader.newInstance(size.width, size.height, photo.format, PHOTO_OUTPUT_BUFFER_SIZE)
-      imageReader.setOnImageAvailableListener({ reader ->
-        val image = reader.acquireLatestImage() ?: return@setOnImageAvailableListener
-        callback.onPhotoCaptured(image)
-      }, CameraQueues.cameraQueue.handler)
-
-      Log.i(TAG, "Adding ${size.width}x${size.height} photo output. (Format: ${photo.format})")
-      photoOutput = ImageReaderOutput(imageReader, SurfaceOutput.OutputType.PHOTO)
-    }
-
-    // Video output: High resolution repeating images (startRecording() or useFrameProcessor())
-    if (video != null) {
-      val format = video.format.toImageFormat()
-      val size = characteristics.getVideoSizes(cameraId, format).closestToOrMax(video.targetSize)
-      val enableFrameProcessor = video.enableFrameProcessor ?: false
-      val videoPipeline = VideoPipeline(size.width, size.height, video.format, isMirrored, enableFrameProcessor)
-
-      Log.i(TAG, "Adding ${size.width}x${size.height} video output. (Format: ${video.format})")
-      videoOutput = VideoPipelineOutput(videoPipeline, SurfaceOutput.OutputType.VIDEO)
-    }
-
-    // Code Scanner
-    if (codeScanner != null) {
-      val format = ImageFormat.YUV_420_888
-      val targetSize = Size(1280, 720)
-      val size = characteristics.getVideoSizes(cameraId, format).closestToOrMax(targetSize)
-      val pipeline = CodeScannerPipeline(size, format, codeScanner)
-
-      Log.i(TAG, "Adding ${size.width}x${size.height} code scanner output. (Code Types: ${codeScanner.options.codeTypes})")
-      codeScannerOutput = BarcodeScannerOutput(pipeline)
-    }
-
-    Log.i(TAG, "Prepared $size Outputs for Camera $cameraId!")
-  }
-}

package/android/src/main/java/com/mrousavy/camera/core/outputs/PhotoOutput.kt

@@ -5,12 +5,12 @@ import android.util.Log
 import android.util.Size
 import java.io.Closeable
 
-open class ImageReaderOutput(private val imageReader: ImageReader, outputType: OutputType, dynamicRangeProfile: Long? = null) :
+open class PhotoOutput(private val imageReader: ImageReader, enableHdr: Boolean = false) :
   SurfaceOutput(
     imageReader.surface,
     Size(imageReader.width, imageReader.height),
-    outputType,
+    OutputType.PHOTO,
-    dynamicRangeProfile
+    enableHdr
   ),
   Closeable {
   override fun close() {

package/android/src/main/java/com/mrousavy/camera/core/outputs/SurfaceOutput.kt

@@ -14,7 +14,7 @@ open class SurfaceOutput(
   val surface: Surface,
   val size: Size,
   val outputType: OutputType,
-  private val dynamicRangeProfile: Long? = null,
+  private val enableHdr: Boolean = false,
   private val closeSurfaceOnEnd: Boolean = false
 ) : Closeable {
   companion object {
@@ -37,9 +37,12 @@ open class SurfaceOutput(
   fun toOutputConfiguration(characteristics: CameraCharacteristics): OutputConfiguration {
     val result = OutputConfiguration(surface)
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-      if (dynamicRangeProfile != null) {
+      if (enableHdr) {
-        result.dynamicRangeProfile = dynamicRangeProfile
+        val profile = characteristics.get(CameraCharacteristics.REQUEST_RECOMMENDED_TEN_BIT_DYNAMIC_RANGE_PROFILE)
-        Log.i(TAG, "Using dynamic range profile ${result.dynamicRangeProfile} for $outputType output.")
+        if (profile != null) {
+          result.dynamicRangeProfile = profile
+          Log.i(TAG, "Using dynamic range profile ${result.dynamicRangeProfile} for $outputType output.")
+        }
       }
       if (supportsOutputType(characteristics, outputType)) {
         result.streamUseCase = outputType.toOutputType().toLong()

package/android/src/main/java/com/mrousavy/camera/core/outputs/VideoPipelineOutput.kt

@@ -5,12 +5,12 @@ import android.util.Size
 import com.mrousavy.camera.core.VideoPipeline
 import java.io.Closeable
 
-class VideoPipelineOutput(val videoPipeline: VideoPipeline, outputType: OutputType, dynamicRangeProfile: Long? = null) :
+class VideoPipelineOutput(val videoPipeline: VideoPipeline, enableHdr: Boolean = false) :
   SurfaceOutput(
     videoPipeline.surface,
     Size(videoPipeline.width, videoPipeline.height),
-    outputType,
+    OutputType.VIDEO,
-    dynamicRangeProfile
+    enableHdr
   ),
   Closeable {
   override fun close() {

package/android/src/main/java/com/mrousavy/camera/extensions/CameraCharacteristics+getPreviewSize.kt

@@ -6,7 +6,7 @@ import android.util.Size
 import android.view.SurfaceHolder
 import kotlin.math.abs
 
-private fun getMaximumPreviewSize(): Size {
+fun getMaximumPreviewSize(): Size {
   // See https://developer.android.com/reference/android/hardware/camera2/params/StreamConfigurationMap
   // According to the Android Developer documentation, PREVIEW streams can have a resolution
   // of up to the phone's display's resolution, with a maximum of 1920x1080.

package/android/src/main/java/com/mrousavy/camera/extensions/CameraDevice+createCaptureSession.kt

@@ -10,7 +10,6 @@ import android.os.Build
 import android.util.Log
 import com.mrousavy.camera.core.CameraQueues
 import com.mrousavy.camera.core.CameraSessionCannotBeConfiguredError
-import com.mrousavy.camera.core.outputs.CameraOutputs
 import kotlin.coroutines.resume
 import kotlin.coroutines.resumeWithException
 import kotlinx.coroutines.suspendCancellableCoroutine
@@ -20,7 +19,7 @@ private var sessionId = 1000
 
 suspend fun CameraDevice.createCaptureSession(
   cameraManager: CameraManager,
-  outputs: CameraOutputs,
+  outputs: List<OutputConfiguration>,
   onClosed: (session: CameraCaptureSession) -> Unit,
   queue: CameraQueues.CameraQueue
 ): CameraCaptureSession =
@@ -42,7 +41,7 @@ suspend fun CameraDevice.createCaptureSession(
 
       override fun onConfigureFailed(session: CameraCaptureSession) {
         Log.e(TAG, "Camera $id: Failed to configure Capture Session #$sessionId!")
-        continuation.resumeWithException(CameraSessionCannotBeConfiguredError(id, outputs))
+        continuation.resumeWithException(CameraSessionCannotBeConfiguredError(id))
       }
 
       override fun onClosed(session: CameraCaptureSession) {
@@ -52,36 +51,12 @@ suspend fun CameraDevice.createCaptureSession(
       }
     }
 
-    val outputConfigurations = arrayListOf<OutputConfiguration>()
-    outputs.previewOutput?.let { output ->
-      outputConfigurations.add(output.toOutputConfiguration(characteristics))
-    }
-    outputs.photoOutput?.let { output ->
-      outputConfigurations.add(output.toOutputConfiguration(characteristics))
-    }
-    outputs.videoOutput?.let { output ->
-      outputConfigurations.add(output.toOutputConfiguration(characteristics))
-    }
-    outputs.codeScannerOutput?.let { output ->
-      outputConfigurations.add(output.toOutputConfiguration(characteristics))
-    }
-    if (outputs.enableHdr == true && Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-      val supportedProfiles = characteristics.get(CameraCharacteristics.REQUEST_AVAILABLE_DYNAMIC_RANGE_PROFILES)
-      val hdrProfile = supportedProfiles?.bestProfile ?: supportedProfiles?.supportedProfiles?.firstOrNull()
-      if (hdrProfile != null) {
-        Log.i(TAG, "Camera $id: Using HDR Profile $hdrProfile...")
-        outputConfigurations.forEach { it.dynamicRangeProfile = hdrProfile }
-      } else {
-        Log.w(TAG, "Camera $id: HDR was enabled, but the device does not support any matching HDR profile!")
-      }
-    }
-
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
       Log.i(TAG, "Using new API (>=28)")
-      val config = SessionConfiguration(SessionConfiguration.SESSION_REGULAR, outputConfigurations, queue.executor, callback)
+      val config = SessionConfiguration(SessionConfiguration.SESSION_REGULAR, outputs, queue.executor, callback)
       this.createCaptureSession(config)
     } else {
       Log.i(TAG, "Using legacy API (<28)")
-      this.createCaptureSessionByOutputConfigurations(outputConfigurations, callback, queue.handler)
+      this.createCaptureSessionByOutputConfigurations(outputs, callback, queue.handler)
     }
   }

package/android/src/main/java/com/mrousavy/camera/types/AutoFocusSystem.kt

@@ -0,0 +1,14 @@
+package com.mrousavy.camera.types
+
+enum class AutoFocusSystem(override val unionValue: String) : JSUnionValue {
+  CONTRAST_DETECTION("contrast-detection"),
+  NONE("none");
+
+  companion object : JSUnionValue.Companion<AutoFocusSystem> {
+    override fun fromUnionValue(unionValue: String?): AutoFocusSystem =
+      when (unionValue) {
+        "contrast-detection" -> CONTRAST_DETECTION
+        else -> NONE
+      }
+  }
+}

package/android/src/main/java/com/mrousavy/camera/types/CameraDeviceFormat.kt

@@ -0,0 +1,106 @@
+package com.mrousavy.camera.types
+
+import android.util.Size
+import com.facebook.react.bridge.ReadableMap
+import com.mrousavy.camera.core.InvalidTypeScriptUnionError
+
+data class CameraDeviceFormat(
+  val videoWidth: Int,
+  val videoHeight: Int,
+  val photoWidth: Int,
+  val photoHeight: Int,
+  val minFps: Double,
+  val maxFps: Double,
+  val minISO: Double,
+  val maxISO: Double,
+  val fieldOfView: Double,
+  val maxZoom: Double,
+  val videoStabilizationModes: Array<VideoStabilizationMode>,
+  val autoFocusSystem: AutoFocusSystem,
+  val supportsVideoHDR: Boolean,
+  val supportsPhotoHDR: Boolean,
+  val pixelFormats: Array<PixelFormat>,
+  val supportsDepthCapture: Boolean
+) {
+  val photoSize: Size
+    get() = Size(photoWidth, photoHeight)
+  val videoSize: Size
+    get() = Size(videoWidth, videoHeight)
+
+  companion object {
+    fun fromJSValue(value: ReadableMap): CameraDeviceFormat {
+      val modes = value.getArray("videoStabilizationModes") ?: throw InvalidTypeScriptUnionError("format", value.toString())
+      val videoStabilizationModes = modes.toArrayList().map { VideoStabilizationMode.fromUnionValue(it as String) }
+
+      val formats = value.getArray("pixelFormats") ?: throw InvalidTypeScriptUnionError("format", value.toString())
+      val pixelFormats = formats.toArrayList().map { PixelFormat.fromUnionValue(it as String) }
+
+      val autoFocusSystem = AutoFocusSystem.fromUnionValue(value.getString("autoFocusSystem"))
+
+      return CameraDeviceFormat(
+        value.getInt("videoWidth"),
+        value.getInt("videoHeight"),
+        value.getInt("photoWidth"),
+        value.getInt("photoHeight"),
+        value.getDouble("minFps"),
+        value.getDouble("maxFps"),
+        value.getDouble("minISO"),
+        value.getDouble("maxISO"),
+        value.getDouble("fieldOfView"),
+        value.getDouble("maxZoom"),
+        videoStabilizationModes.toTypedArray(),
+        autoFocusSystem,
+        value.getBoolean("supportsVideoHDR"),
+        value.getBoolean("supportsPhotoHDR"),
+        pixelFormats.toTypedArray(),
+        value.getBoolean("supportsDepthCapture")
+      )
+    }
+  }
+
+  override fun equals(other: Any?): Boolean {
+    if (this === other) return true
+    if (javaClass != other?.javaClass) return false
+
+    other as CameraDeviceFormat
+
+    if (videoWidth != other.videoWidth) return false
+    if (videoHeight != other.videoHeight) return false
+    if (photoWidth != other.photoWidth) return false
+    if (photoHeight != other.photoHeight) return false
+    if (minFps != other.minFps) return false
+    if (maxFps != other.maxFps) return false
+    if (minISO != other.minISO) return false
+    if (maxISO != other.maxISO) return false
+    if (fieldOfView != other.fieldOfView) return false
+    if (maxZoom != other.maxZoom) return false
+    if (!videoStabilizationModes.contentEquals(other.videoStabilizationModes)) return false
+    if (autoFocusSystem != other.autoFocusSystem) return false
+    if (supportsVideoHDR != other.supportsVideoHDR) return false
+    if (supportsPhotoHDR != other.supportsPhotoHDR) return false
+    if (!pixelFormats.contentEquals(other.pixelFormats)) return false
+    if (supportsDepthCapture != other.supportsDepthCapture) return false
+
+    return true
+  }
+
+  override fun hashCode(): Int {
+    var result = videoWidth
+    result = 31 * result + videoHeight
+    result = 31 * result + photoWidth
+    result = 31 * result + photoHeight
+    result = 31 * result + minFps.hashCode()
+    result = 31 * result + maxFps.hashCode()
+    result = 31 * result + minISO.hashCode()
+    result = 31 * result + maxISO.hashCode()
+    result = 31 * result + fieldOfView.hashCode()
+    result = 31 * result + maxZoom.hashCode()
+    result = 31 * result + videoStabilizationModes.contentHashCode()
+    result = 31 * result + autoFocusSystem.hashCode()
+    result = 31 * result + supportsVideoHDR.hashCode()
+    result = 31 * result + supportsPhotoHDR.hashCode()
+    result = 31 * result + pixelFormats.contentHashCode()
+    result = 31 * result + supportsDepthCapture.hashCode()
+    return result
+  }
+}

package/android/src/main/java/com/mrousavy/camera/types/Orientation.kt

@@ -33,13 +33,13 @@ enum class Orientation(override val unionValue: String) : JSUnionValue {
   }
 
   companion object : JSUnionValue.Companion<Orientation> {
-    override fun fromUnionValue(unionValue: String?): Orientation? =
+    override fun fromUnionValue(unionValue: String?): Orientation =
       when (unionValue) {
         "portrait" -> PORTRAIT
         "landscape-right" -> LANDSCAPE_RIGHT
         "portrait-upside-down" -> PORTRAIT_UPSIDE_DOWN
         "landscape-left" -> LANDSCAPE_LEFT
-        else -> null
+        else -> PORTRAIT
       }
 
     fun fromRotationDegrees(rotationDegrees: Int): Orientation =

package/android/src/main/java/com/mrousavy/camera/types/PixelFormat.kt

@@ -1,6 +1,7 @@
 package com.mrousavy.camera.types
 
 import android.graphics.ImageFormat
+import com.mrousavy.camera.core.InvalidTypeScriptUnionError
 import com.mrousavy.camera.core.PixelFormatNotSupportedError
 
 enum class PixelFormat(override val unionValue: String) : JSUnionValue {
@@ -24,13 +25,13 @@ enum class PixelFormat(override val unionValue: String) : JSUnionValue {
         else -> UNKNOWN
       }
 
-    override fun fromUnionValue(unionValue: String?): PixelFormat? =
+    override fun fromUnionValue(unionValue: String?): PixelFormat =
       when (unionValue) {
         "yuv" -> YUV
         "rgb" -> RGB
         "native" -> NATIVE
         "unknown" -> UNKNOWN
-        else -> null
+        else -> throw InvalidTypeScriptUnionError("pixelFormat", unionValue)
       }
   }
 }

package/android/src/main/java/com/mrousavy/camera/types/VideoStabilizationMode.kt

@@ -5,6 +5,7 @@ import android.hardware.camera2.CameraMetadata.CONTROL_VIDEO_STABILIZATION_MODE_
 import android.hardware.camera2.CameraMetadata.CONTROL_VIDEO_STABILIZATION_MODE_PREVIEW_STABILIZATION
 import android.hardware.camera2.CameraMetadata.LENS_OPTICAL_STABILIZATION_MODE_OFF
 import android.hardware.camera2.CameraMetadata.LENS_OPTICAL_STABILIZATION_MODE_ON
+import com.mrousavy.camera.core.InvalidTypeScriptUnionError
 
 enum class VideoStabilizationMode(override val unionValue: String) : JSUnionValue {
   OFF("off"),
@@ -28,13 +29,13 @@ enum class VideoStabilizationMode(override val unionValue: String) : JSUnionValu
     }
 
   companion object : JSUnionValue.Companion<VideoStabilizationMode> {
-    override fun fromUnionValue(unionValue: String?): VideoStabilizationMode? =
+    override fun fromUnionValue(unionValue: String?): VideoStabilizationMode =
       when (unionValue) {
         "off" -> OFF
         "standard" -> STANDARD
         "cinematic" -> CINEMATIC
         "cinematic-extended" -> CINEMATIC_EXTENDED
-        else -> null
+        else -> throw InvalidTypeScriptUnionError("videoStabilizationMode", unionValue)
       }
 
     fun fromDigitalVideoStabilizationMode(stabiliazionMode: Int): VideoStabilizationMode =

package/example/ios/Podfile.lock

@@ -507,7 +507,7 @@ PODS:
     - libwebp (~> 1.0)
     - SDWebImage/Core (~> 5.10)
   - SocketRocket (0.6.1)
-  - VisionCamera (3.4.0):
+  - VisionCamera (3.5.1):
     - React
     - React-callinvoker
     - React-Core
@@ -747,7 +747,7 @@ SPEC CHECKSUMS:
   SDWebImage: a7f831e1a65eb5e285e3fb046a23fcfbf08e696d
   SDWebImageWebPCoder: 908b83b6adda48effe7667cd2b7f78c897e5111d
   SocketRocket: f32cd54efbe0f095c4d7594881e52619cfe80b17
-  VisionCamera: eead9df29ac5935d5685b5ecaea3ae8b6da84bff
+  VisionCamera: 2f5f9841150719f73b9efb9e0c8fa48fe8556f2d
   Yoga: 8796b55dba14d7004f980b54bcc9833ee45b28ce
 
 PODFILE CHECKSUM: 27f53791141a3303d814e09b55770336416ff4eb