diff --git a/camera/ndk/Android.bp b/camera/ndk/Android.bp
index 379c0b5..508808f 100644
--- a/camera/ndk/Android.bp
+++ b/camera/ndk/Android.bp
@@ -79,6 +79,7 @@
     shared_libs: [
         "android.companion.virtual.virtualdevice_aidl-cpp",
         "android.companion.virtualdevice.flags-aconfig-cc",
+        "camera_platform_flags_c_lib",
         "framework-permission-aidl-cpp",
         "libandroid_runtime",
         "libbinder",
@@ -147,8 +148,8 @@
 
     shared_libs: [
         "android.frameworks.cameraservice.common-V1-ndk",
-        "android.frameworks.cameraservice.device-V2-ndk",
-        "android.frameworks.cameraservice.service-V2-ndk",
+        "android.frameworks.cameraservice.device-V3-ndk",
+        "android.frameworks.cameraservice.service-V3-ndk",
         "libbinder_ndk",
         "libcamera_metadata",
         "libcutils",
diff --git a/camera/ndk/NdkCameraCaptureSession.cpp b/camera/ndk/NdkCameraCaptureSession.cpp
index 92de1e4..58370e5 100644
--- a/camera/ndk/NdkCameraCaptureSession.cpp
+++ b/camera/ndk/NdkCameraCaptureSession.cpp
@@ -177,6 +177,34 @@
 }
 
 EXPORT
+camera_status_t ACameraCaptureSessionShared_startStreaming(
+    ACameraCaptureSession* /*session*/, ACameraCaptureSession_captureCallbacksV2* /*callbacks*/,
+    int /*numOutputWindows*/, ANativeWindow** /*window*/,
+    int* /*captureSequenceId*/) {
+    ATRACE_CALL();
+    // Todo: need to add implementation
+    return  ACAMERA_OK;
+}
+
+EXPORT
+camera_status_t ACameraCaptureSessionShared_logicalCamera_startStreaming(
+    ACameraCaptureSession* /*session*/,
+    ACameraCaptureSession_logicalCamera_captureCallbacksV2* /*callbacks*/,
+    int /*numOutputWindows*/, ANativeWindow** /*windows*/,
+    int* /*captureSequenceId*/) {
+    ATRACE_CALL();
+    // Todo: need to add implementation
+    return  ACAMERA_OK;
+}
+
+EXPORT
+camera_status_t ACameraCaptureSessionShared_stopStreaming(ACameraCaptureSession* /*session*/) {
+    ATRACE_CALL();
+    // Todo: need to add implementation
+    return  ACAMERA_OK;
+}
+
+EXPORT
 camera_status_t ACameraCaptureSession_updateSharedOutput(ACameraCaptureSession* session,
         ACaptureSessionOutput* output) {
     ATRACE_CALL();
diff --git a/camera/ndk/NdkCameraManager.cpp b/camera/ndk/NdkCameraManager.cpp
index 1b3343e..28cc9af 100644
--- a/camera/ndk/NdkCameraManager.cpp
+++ b/camera/ndk/NdkCameraManager.cpp
@@ -27,6 +27,8 @@
 #include "ndk_vendor/impl/ACameraManager.h"
 #else
 #include "impl/ACameraManager.h"
+#include <com_android_internal_camera_flags.h>
+namespace flags = com::android::internal::camera::flags;
 #endif
 #include "impl/ACameraMetadata.h"
 
@@ -159,6 +161,23 @@
 }
 
 EXPORT
+camera_status_t ACameraManager_isCameraDeviceSharingSupported(ACameraManager *mgr,
+        const char *cameraId, bool *isSharingSupported) {
+    ATRACE_CALL();
+    #ifndef __ANDROID_VNDK__
+    if (!flags::camera_multi_client()) {
+        return ACAMERA_ERROR_UNSUPPORTED_OPERATION;
+    }
+    #endif
+    if (mgr == nullptr || cameraId == nullptr || isSharingSupported == nullptr) {
+        ALOGE("%s: invalid argument! mgr %p cameraId %p isSharingSupported %p",
+                __FUNCTION__, mgr, cameraId, isSharingSupported);
+        return ACAMERA_ERROR_INVALID_PARAMETER;
+    }
+    return mgr->isCameraDeviceSharingSupported(cameraId, isSharingSupported);
+}
+
+EXPORT
 camera_status_t ACameraManager_getCameraCharacteristics(
         ACameraManager* mgr, const char* cameraId, ACameraMetadata** chars){
     ATRACE_CALL();
@@ -188,7 +207,27 @@
                 __FUNCTION__, mgr, cameraId, callback, device);
         return ACAMERA_ERROR_INVALID_PARAMETER;
     }
-    return mgr->openCamera(cameraId, callback, device);
+    bool primaryClient;
+    return mgr->openCamera(cameraId, /*sharedMode*/false, callback, device, &primaryClient);
+}
+
+EXPORT
+camera_status_t ACameraManager_openSharedCamera(
+        ACameraManager* mgr, const char* cameraId, ACameraDevice_StateCallbacks* callback,
+        /*out*/ACameraDevice** device, /*out*/bool* primaryClient) {
+    ATRACE_CALL();
+    #ifndef __ANDROID_VNDK__
+    if (!flags::camera_multi_client()) {
+        return ACAMERA_ERROR_UNSUPPORTED_OPERATION;
+    }
+    #endif
+    if (mgr == nullptr || cameraId == nullptr || callback == nullptr || device == nullptr ||
+            primaryClient == nullptr) {
+        ALOGE("%s: invalid argument! mgr %p cameraId %p callback %p device %p primary %p",
+                __FUNCTION__, mgr, cameraId, callback, device, primaryClient);
+        return ACAMERA_ERROR_INVALID_PARAMETER;
+    }
+    return mgr->openCamera(cameraId, /*sharedMode*/true, callback, device, primaryClient);
 }
 
 #ifdef __ANDROID_VNDK__
diff --git a/camera/ndk/impl/ACameraDevice.cpp b/camera/ndk/impl/ACameraDevice.cpp
index 1fa71f4..aed740f 100644
--- a/camera/ndk/impl/ACameraDevice.cpp
+++ b/camera/ndk/impl/ACameraDevice.cpp
@@ -26,6 +26,9 @@
 #include "ACameraMetadata.h"
 #include "ACaptureRequest.h"
 #include "ACameraCaptureSession.h"
+#include <com_android_internal_camera_flags.h>
+
+namespace flags = com::android::internal::camera::flags;
 
 ACameraDevice::~ACameraDevice() {
     mDevice->stopLooperAndDisconnect();
@@ -57,12 +60,13 @@
         const char* id,
         ACameraDevice_StateCallbacks* cb,
         sp<ACameraMetadata> chars,
-        ACameraDevice* wrapper) :
+        ACameraDevice* wrapper, bool sharedMode) :
         mCameraId(id),
         mAppCallbacks(*cb),
         mChars(chars),
         mServiceCallback(new ServiceCallback(this)),
         mWrapper(wrapper),
+        mSharedMode(sharedMode),
         mInError(false),
         mError(ACAMERA_OK),
         mIdle(true),
@@ -970,6 +974,7 @@
         case kWhatCaptureSeqAbort:
         case kWhatCaptureBufferLost:
         case kWhatPreparedCb:
+        case kWhatClientSharedAccessPriorityChanged:
             ALOGV("%s: Received msg %d", __FUNCTION__, msg->what());
             break;
         case kWhatCleanUpSessions:
@@ -1007,6 +1012,32 @@
             (*onDisconnected)(context, dev);
             break;
         }
+
+        case kWhatClientSharedAccessPriorityChanged:
+        {
+            if (!flags::camera_multi_client()) {
+                break;
+            }
+            ACameraDevice* dev;
+            found = msg->findPointer(kDeviceKey, (void**) &dev);
+            if (!found || dev == nullptr) {
+                ALOGE("%s: Cannot find device pointer!", __FUNCTION__);
+                return;
+            }
+            ACameraDevice_ClientSharedAccessPriorityChangedCallback
+                    onClientSharedAccessPriorityChanged;
+            found = msg->findPointer(kCallbackFpKey, (void**) &onClientSharedAccessPriorityChanged);
+            if (!found) {
+                ALOGE("%s: Cannot find onClientSharedAccessPriorityChanged!", __FUNCTION__);
+                return;
+            }
+            if (onClientSharedAccessPriorityChanged == nullptr) {
+                return;
+            }
+            (*onClientSharedAccessPriorityChanged)(context, dev, dev->isPrimaryClient());
+            break;
+        }
+
         case kWhatOnError:
         {
             ACameraDevice* dev;
@@ -1624,6 +1655,31 @@
 }
 
 binder::Status
+CameraDevice::ServiceCallback::onClientSharedAccessPriorityChanged(bool primaryClient) {
+    ALOGV("onClientSharedAccessPriorityChanged received. primaryClient = %d", primaryClient);
+    binder::Status ret = binder::Status::ok();
+    if (!flags::camera_multi_client()) {
+        return ret;
+    }
+    sp<CameraDevice> dev = mDevice.promote();
+    if (dev == nullptr) {
+        return ret; // device has been closed
+    }
+    Mutex::Autolock _l(dev->mDeviceLock);
+    if (dev->isClosed() || dev->mRemote == nullptr) {
+        return ret;
+    }
+    dev->setPrimaryClient(primaryClient);
+    sp<AMessage> msg = new AMessage(kWhatClientSharedAccessPriorityChanged, dev->mHandler);
+    msg->setPointer(kContextKey, dev->mAppCallbacks.context);
+    msg->setPointer(kDeviceKey, (void*) dev->getWrapper());
+    msg->setPointer(kCallbackFpKey, (void*) dev->mAppCallbacks.onClientSharedAccessPriorityChanged);
+    msg->post();
+
+    return binder::Status::ok();
+}
+
+binder::Status
 CameraDevice::ServiceCallback::onDeviceIdle() {
     ALOGV("Camera is now idle");
     binder::Status ret = binder::Status::ok();
diff --git a/camera/ndk/impl/ACameraDevice.h b/camera/ndk/impl/ACameraDevice.h
index 2b9f327..d3aed4b 100644
--- a/camera/ndk/impl/ACameraDevice.h
+++ b/camera/ndk/impl/ACameraDevice.h
@@ -63,7 +63,7 @@
   public:
     CameraDevice(const char* id, ACameraDevice_StateCallbacks* cb,
                   sp<ACameraMetadata> chars,
-                  ACameraDevice* wrapper);
+                  ACameraDevice* wrapper, bool sharedMode);
     ~CameraDevice();
 
     inline const char* getId() const { return mCameraId.c_str(); }
@@ -98,6 +98,7 @@
         binder::Status onRequestQueueEmpty() override;
         binder::Status onRepeatingRequestError(int64_t lastFrameNumber,
                 int32_t stoppedSequenceId) override;
+        binder::Status onClientSharedAccessPriorityChanged(bool isPrimaryClient) override;
       private:
         const wp<CameraDevice> mDevice;
     };
@@ -113,6 +114,9 @@
     // Stop the looper thread and unregister the handler
     void stopLooperAndDisconnect();
 
+    void setPrimaryClient(bool isPrimary) {mIsPrimaryClient = isPrimary;};
+    bool isPrimaryClient() {return mIsPrimaryClient;};
+
   private:
     friend ACameraCaptureSession;
     camera_status_t checkCameraClosedOrErrorLocked() const;
@@ -186,6 +190,8 @@
     const sp<ACameraMetadata> mChars;                 // Camera characteristics
     const sp<ServiceCallback> mServiceCallback;
     ACameraDevice* mWrapper;
+    bool mSharedMode;
+    bool mIsPrimaryClient;
 
     // stream id -> pair of (ANW* from application, OutputConfiguration used for camera service)
     std::map<int, std::pair<ANativeWindow*, OutputConfiguration>> mConfiguredOutputs;
@@ -227,7 +233,8 @@
         kWhatCaptureBufferLost, // onCaptureBufferLost
         kWhatPreparedCb, // onWindowPrepared
         // Internal cleanup
-        kWhatCleanUpSessions   // Cleanup cached sp<ACameraCaptureSession>
+        kWhatCleanUpSessions,   // Cleanup cached sp<ACameraCaptureSession>
+        kWhatClientSharedAccessPriorityChanged
     };
     static const char* kContextKey;
     static const char* kDeviceKey;
@@ -403,8 +410,8 @@
  */
 struct ACameraDevice {
     ACameraDevice(const char* id, ACameraDevice_StateCallbacks* cb,
-                  sp<ACameraMetadata> chars) :
-            mDevice(new android::acam::CameraDevice(id, cb, chars, this)) {}
+                  sp<ACameraMetadata> chars, bool sharedMode) :
+            mDevice(new android::acam::CameraDevice(id, cb, chars, this, sharedMode)) {}
 
     ~ACameraDevice();
 
@@ -445,6 +452,14 @@
         mDevice->setRemoteDevice(remote);
     }
 
+    inline void setPrimaryClient(bool isPrimary) {
+        mDevice->setPrimaryClient(isPrimary);
+    }
+
+    inline bool isPrimaryClient() {
+        return mDevice->isPrimaryClient();
+    }
+
   private:
     android::sp<android::acam::CameraDevice> mDevice;
 };
diff --git a/camera/ndk/impl/ACameraManager.cpp b/camera/ndk/impl/ACameraManager.cpp
index 53c4489..5dddd29 100644
--- a/camera/ndk/impl/ACameraManager.cpp
+++ b/camera/ndk/impl/ACameraManager.cpp
@@ -28,9 +28,11 @@
 #include <memory>
 #include "ACameraDevice.h"
 #include "ACameraMetadata.h"
+#include <com_android_internal_camera_flags.h>
 
 using namespace android::acam;
 namespace vd_flags = android::companion::virtualdevice::flags;
+namespace flags = com::android::internal::camera::flags;
 
 namespace android {
 namespace acam {
@@ -860,10 +862,36 @@
 }
 
 camera_status_t
-ACameraManager::openCamera(
+ACameraManager::isCameraDeviceSharingSupported(
         const char* cameraId,
+        /*out*/bool* isSharingSupported) {
+    if (!flags::camera_multi_client()) {
+        return ACAMERA_ERROR_UNSUPPORTED_OPERATION;
+    }
+    sp<ACameraMetadata> spChars;
+    camera_status_t ret = getCameraCharacteristics(cameraId, &spChars);
+    if (ret != ACAMERA_OK) {
+        ALOGE("%s: cannot get camera characteristics for camera %s. err %d",
+                __FUNCTION__, cameraId, ret);
+        return ret;
+    }
+
+    ACameraMetadata* chars = spChars.get();
+    ACameraMetadata_const_entry entry;
+    ret = ACameraMetadata_getConstEntry(chars, ANDROID_SHARED_SESSION_OUTPUT_CONFIGURATIONS,
+            &entry);
+    if (ret != ACAMERA_OK) {
+        return ret;
+    }
+    *isSharingSupported =  (entry.count > 0) ? true : false;
+    return ACAMERA_OK;
+}
+
+camera_status_t
+ACameraManager::openCamera(
+        const char* cameraId, bool sharedMode,
         ACameraDevice_StateCallbacks* callback,
-        /*out*/ACameraDevice** outDevice) {
+        /*out*/ACameraDevice** outDevice, /*out*/bool* primaryClient) {
     sp<ACameraMetadata> chars;
     camera_status_t ret = getCameraCharacteristics(cameraId, &chars);
     Mutex::Autolock _l(mLock);
@@ -873,7 +901,7 @@
         return ACAMERA_ERROR_INVALID_PARAMETER;
     }
 
-    ACameraDevice* device = new ACameraDevice(cameraId, callback, chars);
+    ACameraDevice* device = new ACameraDevice(cameraId, callback, chars, sharedMode);
 
     sp<hardware::ICameraService> cs = mGlobalManager->getCameraService();
     if (cs == nullptr) {
@@ -898,7 +926,7 @@
     binder::Status serviceRet = cs->connectDevice(
             callbacks, cameraId, /*oomScoreOffset*/0,
             targetSdkVersion, /*rotationOverride*/hardware::ICameraService::ROTATION_OVERRIDE_NONE,
-            clientAttribution, static_cast<int32_t>(mDeviceContext.policy),
+            clientAttribution, static_cast<int32_t>(mDeviceContext.policy), sharedMode,
             /*out*/&deviceRemote);
 
     if (!serviceRet.isOk()) {
@@ -942,6 +970,14 @@
         return ACAMERA_ERROR_CAMERA_DISCONNECTED;
     }
     device->setRemoteDevice(deviceRemote);
+    if (flags::camera_multi_client() && sharedMode) {
+        binder::Status remoteRet = deviceRemote->isPrimaryClient(primaryClient);
+        if (!remoteRet.isOk()) {
+            delete device;
+            return ACAMERA_ERROR_UNKNOWN;
+        }
+        device->setPrimaryClient(*primaryClient);
+    }
     *outDevice = device;
     return ACAMERA_OK;
 }
diff --git a/camera/ndk/impl/ACameraManager.h b/camera/ndk/impl/ACameraManager.h
index cb7a4ff..fffe037 100644
--- a/camera/ndk/impl/ACameraManager.h
+++ b/camera/ndk/impl/ACameraManager.h
@@ -138,6 +138,10 @@
         virtual binder::Status onCameraOpened(const std::string&, const std::string&, int32_t) {
             return binder::Status::ok();
         }
+        virtual binder::Status onCameraOpenedInSharedMode(const std::string&, const std::string&,
+                int32_t, bool)  {
+            return binder::Status::ok();
+        }
         virtual binder::Status onCameraClosed(const std::string&, int32_t) {
             return binder::Status::ok();
         }
@@ -327,16 +331,17 @@
 
     camera_status_t getCameraCharacteristics(
             const char* cameraId, android::sp<ACameraMetadata>* characteristics);
-    camera_status_t openCamera(const char* cameraId,
+    camera_status_t openCamera(const char* cameraId, bool sharedMode,
                                ACameraDevice_StateCallbacks* callback,
-                               /*out*/ACameraDevice** device);
+                               /*out*/ACameraDevice** device, /*out*/bool* primaryClient);
     void registerAvailabilityCallback(const ACameraManager_AvailabilityCallbacks* callback);
     void unregisterAvailabilityCallback(const ACameraManager_AvailabilityCallbacks* callback);
     void registerExtendedAvailabilityCallback(
             const ACameraManager_ExtendedAvailabilityCallbacks* callback);
     void unregisterExtendedAvailabilityCallback(
             const ACameraManager_ExtendedAvailabilityCallbacks* callback);
-
+    camera_status_t isCameraDeviceSharingSupported(
+            const char* cameraId, bool* isSharingSupported);
   private:
     enum {
         kCameraIdListNotInit = -1
diff --git a/camera/ndk/include/camera/NdkCameraCaptureSession.h b/camera/ndk/include/camera/NdkCameraCaptureSession.h
index 1400121..e73222b 100644
--- a/camera/ndk/include/camera/NdkCameraCaptureSession.h
+++ b/camera/ndk/include/camera/NdkCameraCaptureSession.h
@@ -1099,6 +1099,92 @@
 camera_status_t ACameraCaptureSession_prepareWindow(
     ACameraCaptureSession* session,
     ANativeWindow *window) __INTRODUCED_IN(34);
+
+/**
+ * Request continuous streaming of a sequence of images for the shared capture session
+ * when more than one clients can open the same camera in shared mode by calling
+ * {@link ACameraManager_openSharedCamera}. In shared session, only primary clients can create
+ * a capture request and change capture parameters. Secondary clients can only request streaming of
+ * images by calling this api {@link ACameraCaptureSessionShared_startStreaming}. Calling this api
+ * for normal sessions when {@link ACameraManager_openCamera} is used to open the camera will throw
+ * {@link ACAMERA_ERROR_INVALID_OPERATION}.
+ *
+ * <p>With this method, the camera device will continually capture images, cycling through the
+ * settings in the list of {@link ACaptureRequest} specified by the primary client. If primary
+ * client does not have ongoing repeating request, camera service will use a capture request with
+ * default capture parameters for preview template.</p>
+ *
+ * <p>To stop the continuous streaming, call {@link ACameraCaptureSessionShared_stopStreaming}.</p>
+ *
+ * <p>Calling this method will replace an existing continuous streaming request.</p>
+ *
+ * @param sharedSession the shared capture session when camera is opened in
+ *        shared mode.
+ * @param callbacks the {@link ACameraCaptureSession_captureCallbacks} to be associated with this
+ *        capture sequence. No capture callback will be fired if callbacks is set to NULL.
+ * @param numOutputWindows number of native windows to be used for streaming. Must be at least 1.
+ * @param windows an array of {@link ANativeWindow} to be used for streaming. Length must be at
+ *        least numOutputWindows.
+ * @param captureSequenceId the capture sequence ID associated with this capture method invocation
+ *        will be stored here if this argument is not NULL and the method call succeeds.
+ *        When this argument is set to NULL, the capture sequence ID will not be returned.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
+ *             if it is not NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session or requests is NULL, or
+ *             if numRequests < 1</li>
+ *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error
+ *         </li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_OPERATION} if the session passed is not a shared
+ *              session</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for  some other reasons</li>
+ *         </ul>
+ */
+camera_status_t ACameraCaptureSessionShared_startStreaming(
+    ACameraCaptureSession* sharedSession, ACameraCaptureSession_captureCallbacksV2 *callbacks,
+    int numOutputWindows, ANativeWindow **window,
+    int *captureSequenceId) __INTRODUCED_IN(36);
+
+/**
+ * This has the same functionality as ACameraCaptureSessionShared_startStreaming, with added
+ * support for logical multi-camera where the capture callbacks supports result metadata for
+ * physical cameras.
+ */
+camera_status_t ACameraCaptureSessionShared_logicalCamera_startStreaming(
+    ACameraCaptureSession* sharedSession,
+    ACameraCaptureSession_logicalCamera_captureCallbacksV2 *callbacks,
+    int numOutputWindows, ANativeWindow **windows,
+    int *captureSequenceId) __INTRODUCED_IN(36);
+
+/**
+ * Cancel any ongoing streaming started by {@link ACameraCaptureSessionShared_startStreaming}.
+ * Calling this api does not effect any streaming requests submitted by other clients who have
+ * opened the camera in shared mode. Calling this api for normal sessions when
+ * {@link ACameraManager_openCamera} is used to open the camera will throw
+ * {@link ACAMERA_ERROR_INVALID_OPERATION}.
+ *
+ * @param sharedSession the capture session of interest
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session is NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error
+ *         </li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_OPERATION} if the session passed is not a shared
+ *              session</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li>
+ *         </ul>
+ */
+camera_status_t ACameraCaptureSessionShared_stopStreaming(
+  ACameraCaptureSession *sharedSession
+)  __INTRODUCED_IN(36);
 __END_DECLS
 
 #endif /* _NDK_CAMERA_CAPTURE_SESSION_H */
diff --git a/camera/ndk/include/camera/NdkCameraDevice.h b/camera/ndk/include/camera/NdkCameraDevice.h
index fbd0ee1..8c7eb1f 100644
--- a/camera/ndk/include/camera/NdkCameraDevice.h
+++ b/camera/ndk/include/camera/NdkCameraDevice.h
@@ -125,6 +125,18 @@
 typedef void (*ACameraDevice_ErrorStateCallback)(void* context, ACameraDevice* device, int error);
 
 /**
+ * Client access priorities changed callbacks to be used in {@link ACameraDevice_StateCallbacks}
+ * when camera is opened in shared mode.
+ *
+ * @param context The optional context in {@link ACameraDevice_StateCallbacks} will be passed to
+ *                this callback.
+ * @param device The {@link ACameraDevice} whose access priorities has been changed.
+ * @param isPrimaryClient whether the client is primary client.
+ */
+typedef void (*ACameraDevice_ClientSharedAccessPriorityChangedCallback)(void* context,
+        ACameraDevice* device, bool isPrimaryClient);
+
+/**
  * Applications' callbacks for camera device state changes, register with
  * {@link ACameraManager_openCamera}.
  */
@@ -163,6 +175,17 @@
      *
      */
     ACameraDevice_ErrorStateCallback  onError;
+
+    /**
+     * Notify registered clients about client shared access priority changes when the camera device
+     * has been opened in shared mode.
+     *
+     * If the client priority changes from secondary to primary, then it can now
+     * create capture request and change the capture request parameters. If client priority
+     * changes from primary to secondary, that implies that another higher priority client is also
+     * accessing the camera in shared mode and is now the primary client.
+     */
+    ACameraDevice_ClientSharedAccessPriorityChangedCallback onClientSharedAccessPriorityChanged;
 } ACameraDevice_StateCallbacks;
 
 /**
@@ -671,7 +694,9 @@
  *         <li>{@link ACAMERA_OK} if the method call succeeds. The created capture session will be
  *                                filled in session argument.</li>
  *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if any of device, outputs, callbacks or
- *                                session is NULL.</li>
+ *                                session is NULL or if the outputs does not match the predefined
+ *                                shared session configuration when camera is opened in shared mode.
+ *                                </li>
  *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed.</li>
  *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error.</li>
  *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error.</li>
diff --git a/camera/ndk/include/camera/NdkCameraManager.h b/camera/ndk/include/camera/NdkCameraManager.h
index b4f3bf1..a9b0174 100644
--- a/camera/ndk/include/camera/NdkCameraManager.h
+++ b/camera/ndk/include/camera/NdkCameraManager.h
@@ -293,6 +293,46 @@
         /*out*/ACameraDevice** device) __INTRODUCED_IN(24);
 
 /**
+ * Open a shared connection to a camera with the given ID. The opened camera device will be
+ * returned in the `device` parameter. The behavior of this method matches that of
+ * {@link ACameraManager_openCamera(ACameraManager*, const char*, ACameraDevice_StateCallbacks*,
+ * ACameraDevice**)} except that it opens the camera in shared mode so that more
+ * than one client can access the camera at the same time.
+ *
+ * <p>Processes need to have android.permission.SYSTEM_CAMERA in addition to
+ * android.permission.CAMERA in order to connect to this camera device in shared
+ * mode.</p>
+ *
+ * @param manager the {@link ACameraManager} of interest.
+ * @param cameraId the ID string of the camera device to be opened.
+ * @param callback the {@link ACameraDevice_StateCallbacks} associated with the opened camera
+ *                 device.
+ * @param device the opened {@link ACameraDevice} will be filled here if the method call succeeds.
+ * @param primaryClient will return as true if the client is primaryClient.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager, cameraId, callback, or device
+ *                  is NULL, or cameraId does not match any camera devices connected.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if connection to camera service fails.</li>
+ *         <li>{@link ACAMERA_ERROR_NOT_ENOUGH_MEMORY} if allocating memory fails.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_IN_USE} if camera device is being used by a higher
+ *                   priority camera API client.</li>
+ *         <li>{@link ACAMERA_ERROR_MAX_CAMERA_IN_USE} if the system-wide limit for number of open
+ *                   cameras or camera resources has been reached, and more camera devices cannot be
+ *                   opened until previous instances are closed.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISABLED} if the camera is disabled due to a device
+ *                   policy, and cannot be opened.</li>
+ *         <li>{@link ACAMERA_ERROR_PERMISSION_DENIED} if the application does not have permission
+ *                   to open camera.</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACameraManager_openSharedCamera(
+        ACameraManager* manager, const char* cameraId,
+        ACameraDevice_StateCallbacks* callback,
+        /*out*/ACameraDevice** device,/*out*/bool* isPrimaryClient) __INTRODUCED_IN(36);
+
+/**
  * Definition of camera access permission change callback.
  *
  * <p>Notification that camera access priorities have changed and the camera may
@@ -397,6 +437,27 @@
         ACameraManager* manager,
         const ACameraManager_ExtendedAvailabilityCallbacks* callback) __INTRODUCED_IN(29);
 
+
+/**
+ * Checks if a camera can be opened in shared mode by multiple clients.
+ *
+ * @param manager the {@link ACameraManager} of interest.
+ * @param cameraId the ID string of the camera device of interest.
+ * @param isSharingSupported output will be filled here if the method succeeds.
+ *        This will be true if camera can be opened in shared mode, false
+ *        otherwise.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if any parameter is not
+ *         valid.</li>
+ *         </ul>
+ */
+camera_status_t ACameraManager_isCameraDeviceSharingSupported(
+        ACameraManager *manager,
+        const char *cameraId,
+        bool *isSharingSupported) __INTRODUCED_IN(36);
+
 #ifdef __ANDROID_VNDK__
 /**
  * Retrieve the tag value, given the tag name and camera id.
diff --git a/camera/ndk/include/camera/NdkCameraMetadataTags.h b/camera/ndk/include/camera/NdkCameraMetadataTags.h
index 704b46e..fc6b932 100644
--- a/camera/ndk/include/camera/NdkCameraMetadataTags.h
+++ b/camera/ndk/include/camera/NdkCameraMetadataTags.h
@@ -91,6 +91,7 @@
     ACAMERA_AUTOMOTIVE_LENS,
     ACAMERA_EXTENSION,
     ACAMERA_JPEGR,
+    ACAMERA_SHARED_SESSION,
     ACAMERA_SECTION_COUNT,
 
     ACAMERA_VENDOR = 0x8000
@@ -138,6 +139,7 @@
     ACAMERA_AUTOMOTIVE_LENS_START  = ACAMERA_AUTOMOTIVE_LENS   << 16,
     ACAMERA_EXTENSION_START        = ACAMERA_EXTENSION         << 16,
     ACAMERA_JPEGR_START            = ACAMERA_JPEGR             << 16,
+    ACAMERA_SHARED_SESSION_START   = ACAMERA_SHARED_SESSION    << 16,
     ACAMERA_VENDOR_START           = ACAMERA_VENDOR            << 16
 } acamera_metadata_section_start_t;
 
@@ -12079,6 +12081,7 @@
 
 
 
+
 __END_DECLS
 
 #endif /* _NDK_CAMERA_METADATA_TAGS_H */
diff --git a/camera/ndk/libcamera2ndk.map.txt b/camera/ndk/libcamera2ndk.map.txt
index 7d7868b..60d4775 100644
--- a/camera/ndk/libcamera2ndk.map.txt
+++ b/camera/ndk/libcamera2ndk.map.txt
@@ -28,6 +28,8 @@
     ACameraManager_getCameraCharacteristics;
     ACameraManager_getCameraIdList;
     ACameraManager_openCamera;
+    ACameraManager_openSharedCamera; # systemapi introduced=36
+    ACameraManager_isCameraDeviceSharingSupported; # systemapi introduced=36
     ACameraManager_registerAvailabilityCallback;
     ACameraManager_unregisterAvailabilityCallback;
     ACameraManager_registerExtendedAvailabilityCallback; # introduced=29
@@ -72,6 +74,9 @@
     ACaptureSessionSharedOutput_remove; # introduced=28
     ACaptureSessionPhysicalOutput_create; # introduced=29
     ACaptureSessionOutput_free;
+    ACameraCaptureSessionShared_startStreaming; # systemapi introduced=36
+    ACameraCaptureSessionShared_logicalCamera_startStreaming; # systemapi introduced=36
+    ACameraCaptureSessionShared_stopStreaming; # systemapi introduced=36
   local:
     *;
 };
diff --git a/camera/ndk/ndk_vendor/impl/ACameraDevice.cpp b/camera/ndk/ndk_vendor/impl/ACameraDevice.cpp
index 9ed8197..d3a8e0d 100644
--- a/camera/ndk/ndk_vendor/impl/ACameraDevice.cpp
+++ b/camera/ndk/ndk_vendor/impl/ACameraDevice.cpp
@@ -85,11 +85,12 @@
         const char* id,
         ACameraDevice_StateCallbacks* cb,
         sp<ACameraMetadata> chars,
-        ACameraDevice* wrapper) :
+        ACameraDevice* wrapper, bool sharedMode) :
         mCameraId(id),
         mAppCallbacks(*cb),
         mChars(std::move(chars)),
         mWrapper(wrapper),
+        mSharedMode(sharedMode),
         mInError(false),
         mError(ACAMERA_OK),
         mIdle(true),
@@ -960,6 +961,7 @@
         case kWhatCaptureSeqAbort:
         case kWhatCaptureBufferLost:
         case kWhatPreparedCb:
+        case kWhatClientSharedAccessPriorityChanged:
             ALOGV("%s: Received msg %d", __FUNCTION__, msg->what());
             break;
         case kWhatCleanUpSessions:
@@ -997,6 +999,28 @@
             (*onDisconnected)(context, dev);
             break;
         }
+        case kWhatClientSharedAccessPriorityChanged:
+        {
+            ACameraDevice* dev;
+            found = msg->findPointer(kDeviceKey, (void**) &dev);
+            if (!found || dev == nullptr) {
+                ALOGE("%s: Cannot find device pointer!", __FUNCTION__);
+                return;
+            }
+            ACameraDevice_ClientSharedAccessPriorityChangedCallback
+                    onClientSharedAccessPriorityChanged;
+            found = msg->findPointer(kCallbackFpKey, (void**) &onClientSharedAccessPriorityChanged);
+            if (!found) {
+                ALOGE("%s: Cannot find onClientSharedAccessPriorityChanged!", __FUNCTION__);
+                return;
+            }
+            if (onClientSharedAccessPriorityChanged == nullptr) {
+                return;
+            }
+            (*onClientSharedAccessPriorityChanged)(context, dev, dev->isPrimaryClient());
+            break;
+        }
+
         case kWhatOnError:
         {
             ACameraDevice* dev;
@@ -1614,6 +1638,28 @@
     return ScopedAStatus::ok();
 }
 
+ScopedAStatus CameraDevice::ServiceCallback::onClientSharedAccessPriorityChanged(
+        bool primaryClient) {
+    ALOGV("onClientSharedAccessPriorityChanged received. primaryClient = %d", primaryClient);
+    ScopedAStatus ret = ScopedAStatus::ok();
+    std::shared_ptr<CameraDevice> dev = mDevice.lock();
+    if (dev == nullptr) {
+        return ret; // device has been closed
+    }
+    Mutex::Autolock _l(dev->mDeviceLock);
+    if (dev->isClosed() || dev->mRemote == nullptr) {
+        return ret;
+    }
+    dev->setPrimaryClient(primaryClient);
+    sp<AMessage> msg = new AMessage(kWhatClientSharedAccessPriorityChanged, dev->mHandler);
+    msg->setPointer(kContextKey, dev->mAppCallbacks.context);
+    msg->setPointer(kDeviceKey, (void*) dev->getWrapper());
+    msg->setPointer(kCallbackFpKey, (void*) dev->mAppCallbacks.onClientSharedAccessPriorityChanged);
+    msg->post();
+
+    return ScopedAStatus::ok();
+}
+
 ScopedAStatus CameraDevice::ServiceCallback::onDeviceIdle() {
     ALOGV("Camera is now idle");
 
diff --git a/camera/ndk/ndk_vendor/impl/ACameraDevice.h b/camera/ndk/ndk_vendor/impl/ACameraDevice.h
index b771d47..6ba30bb 100644
--- a/camera/ndk/ndk_vendor/impl/ACameraDevice.h
+++ b/camera/ndk/ndk_vendor/impl/ACameraDevice.h
@@ -95,7 +95,7 @@
   public:
     CameraDevice(const char* id, ACameraDevice_StateCallbacks* cb,
                   sp<ACameraMetadata> chars,
-                  ACameraDevice* wrapper);
+                  ACameraDevice* wrapper, bool sharedMode);
     ~CameraDevice();
 
     // Called to initialize fields that require shared_ptr to `this`
@@ -136,6 +136,7 @@
                                             const CaptureResultExtras& in_resultExtras,
                                             const std::vector<PhysicalCaptureResultInfo>&
                                                     in_physicalCaptureResultInfos) override;
+         ndk::ScopedAStatus onClientSharedAccessPriorityChanged(bool isPrimaryClient) override;
 
       private:
         camera_status_t readOneResultMetadata(const CaptureMetadataInfo& captureMetadataInfo,
@@ -154,6 +155,8 @@
 
     // Stop the looper thread and unregister the handler
     void stopLooperAndDisconnect();
+    void setPrimaryClient(bool isPrimary) {mIsPrimaryClient = isPrimary;};
+    bool isPrimaryClient() {return mIsPrimaryClient;};
 
   private:
     friend ACameraCaptureSession;
@@ -232,6 +235,8 @@
     const sp<ACameraMetadata> mChars;    // Camera characteristics
     std::shared_ptr<ServiceCallback> mServiceCallback;
     ACameraDevice* mWrapper;
+    bool mSharedMode;
+    bool mIsPrimaryClient;
 
     // stream id -> pair of (ACameraWindowType* from application, OutputConfiguration used for
     // camera service)
@@ -274,7 +279,8 @@
         kWhatCaptureBufferLost, // onCaptureBufferLost
         kWhatPreparedCb, // onPrepared
         // Internal cleanup
-        kWhatCleanUpSessions   // Cleanup cached sp<ACameraCaptureSession>
+        kWhatCleanUpSessions,   // Cleanup cached sp<ACameraCaptureSession>
+        kWhatClientSharedAccessPriorityChanged
     };
     static const char* kContextKey;
     static const char* kDeviceKey;
@@ -434,9 +440,9 @@
  */
 struct ACameraDevice {
     ACameraDevice(const char* id, ACameraDevice_StateCallbacks* cb,
-                  sp<ACameraMetadata> chars) :
+                  sp<ACameraMetadata> chars, bool sharedMode) :
             mDevice(std::make_shared<android::acam::CameraDevice>(id, cb,
-                                                                std::move(chars), this)) {
+            std::move(chars), this, sharedMode)) {
         mDevice->init();
     }
 
@@ -481,6 +487,13 @@
     inline bool setDeviceMetadataQueues() {
         return mDevice->setDeviceMetadataQueues();
     }
+    inline void setPrimaryClient(bool isPrimary) {
+        mDevice->setPrimaryClient(isPrimary);
+    }
+    inline bool isPrimaryClient() {
+        return mDevice->isPrimaryClient();
+    }
+
   private:
     std::shared_ptr<android::acam::CameraDevice> mDevice;
 };
diff --git a/camera/ndk/ndk_vendor/impl/ACameraManager.cpp b/camera/ndk/ndk_vendor/impl/ACameraManager.cpp
index 5b69f5c..c34c4bd 100644
--- a/camera/ndk/ndk_vendor/impl/ACameraManager.cpp
+++ b/camera/ndk/ndk_vendor/impl/ACameraManager.cpp
@@ -789,10 +789,33 @@
 }
 
 camera_status_t
-ACameraManager::openCamera(
+ACameraManager::isCameraDeviceSharingSupported(
         const char* cameraId,
+        /*out*/bool* isSharingSupported) {
+    sp<ACameraMetadata> spChars;
+    camera_status_t ret = getCameraCharacteristics(cameraId, &spChars);
+    if (ret != ACAMERA_OK) {
+        ALOGE("%s: cannot get camera characteristics for camera %s. err %d",
+                __FUNCTION__, cameraId, ret);
+        return ret;
+    }
+
+    ACameraMetadata* chars = spChars.get();
+    ACameraMetadata_const_entry entry;
+    ret = ACameraMetadata_getConstEntry(chars, ANDROID_SHARED_SESSION_OUTPUT_CONFIGURATIONS,
+            &entry);
+    if (ret != ACAMERA_OK) {
+        return ret;
+    }
+    *isSharingSupported =  (entry.count > 0) ? true : false;
+    return ACAMERA_OK;
+}
+
+camera_status_t
+ACameraManager::openCamera(
+        const char* cameraId, bool sharedMode,
         ACameraDevice_StateCallbacks* callback,
-        /*out*/ACameraDevice** outDevice) {
+        /*out*/ACameraDevice** outDevice, /*out*/bool* isPrimaryClient) {
     sp<ACameraMetadata> rawChars;
     camera_status_t ret = getCameraCharacteristics(cameraId, &rawChars);
     Mutex::Autolock _l(mLock);
@@ -802,7 +825,7 @@
         return ACAMERA_ERROR_INVALID_PARAMETER;
     }
 
-    ACameraDevice* device = new ACameraDevice(cameraId, callback, std::move(rawChars));
+    ACameraDevice* device = new ACameraDevice(cameraId, callback, std::move(rawChars), sharedMode);
 
     std::shared_ptr<ICameraService> cs = CameraManagerGlobal::getInstance()->getCameraService();
     if (cs == nullptr) {
@@ -813,11 +836,18 @@
 
     std::shared_ptr<BnCameraDeviceCallback> deviceCallback = device->getServiceCallback();
     std::shared_ptr<ICameraDeviceUser> deviceRemote;
+    ScopedAStatus serviceRet;
 
     // No way to get package name from native.
     // Send a zero length package name and let camera service figure it out from UID
-    ScopedAStatus serviceRet = cs->connectDevice(deviceCallback,
-                                                 std::string(cameraId), &deviceRemote);
+    if (sharedMode) {
+        serviceRet = cs->connectDeviceV2(deviceCallback,
+                std::string(cameraId), sharedMode, &deviceRemote);
+    } else {
+        serviceRet = cs->connectDevice(deviceCallback,
+                std::string(cameraId), &deviceRemote);
+    }
+
     if (!serviceRet.isOk()) {
         if (serviceRet.getExceptionCode() == EX_SERVICE_SPECIFIC) {
             Status errStatus = static_cast<Status>(serviceRet.getServiceSpecificError());
@@ -840,6 +870,13 @@
     }
 
     device->setRemoteDevice(deviceRemote);
+    if (sharedMode) {
+        ScopedAStatus remoteRet = deviceRemote->isPrimaryClient(isPrimaryClient);
+        if (!remoteRet.isOk()) {
+            return ACAMERA_ERROR_UNKNOWN;
+        }
+        device->setPrimaryClient(*isPrimaryClient);
+    }
     device->setDeviceMetadataQueues();
     *outDevice = device;
     return ACAMERA_OK;
diff --git a/camera/ndk/ndk_vendor/impl/ACameraManager.h b/camera/ndk/ndk_vendor/impl/ACameraManager.h
index 5688e76..e9973e6 100644
--- a/camera/ndk/ndk_vendor/impl/ACameraManager.h
+++ b/camera/ndk/ndk_vendor/impl/ACameraManager.h
@@ -261,9 +261,9 @@
     camera_status_t getCameraCharacteristics(
             const char* cameraId, android::sp<ACameraMetadata>* characteristics);
 
-    camera_status_t openCamera(const char* cameraId,
-                               ACameraDevice_StateCallbacks* callback,
-                               /*out*/ACameraDevice** device);
+    camera_status_t openCamera(const char* cameraId, bool sharedMode,
+            ACameraDevice_StateCallbacks* callback, /*out*/ACameraDevice** device,
+            /*out*/bool* primaryClient);
     camera_status_t getTagFromName(const char *cameraId, const char *name, uint32_t *tag);
     void registerAvailabilityCallback(const ACameraManager_AvailabilityCallbacks* callback);
     void unregisterAvailabilityCallback(const ACameraManager_AvailabilityCallbacks* callback);
@@ -271,6 +271,8 @@
             const ACameraManager_ExtendedAvailabilityCallbacks* callback);
     void unregisterExtendedAvailabilityCallback(
             const ACameraManager_ExtendedAvailabilityCallbacks* callback);
+    camera_status_t isCameraDeviceSharingSupported(const char *cameraId,
+            bool *isSharingSupported);
 
   private:
     enum {