diff --git a/camera/device/aidl/aidl_api/android.hardware.camera.device/current/android/hardware/camera/device/Stream.aidl b/camera/device/aidl/aidl_api/android.hardware.camera.device/current/android/hardware/camera/device/Stream.aidl
index 9263a03..d2f295a 100644
--- a/camera/device/aidl/aidl_api/android.hardware.camera.device/current/android/hardware/camera/device/Stream.aidl
+++ b/camera/device/aidl/aidl_api/android.hardware.camera.device/current/android/hardware/camera/device/Stream.aidl
@@ -47,4 +47,5 @@
   int groupId;
   android.hardware.camera.metadata.SensorPixelMode[] sensorPixelModesUsed;
   android.hardware.camera.metadata.RequestAvailableDynamicRangeProfilesMap dynamicRangeProfile;
+  android.hardware.camera.metadata.ScalerAvailableStreamUseCases useCase;
 }
diff --git a/camera/device/aidl/android/hardware/camera/device/Stream.aidl b/camera/device/aidl/android/hardware/camera/device/Stream.aidl
index b3291b0..e35e4ff 100644
--- a/camera/device/aidl/android/hardware/camera/device/Stream.aidl
+++ b/camera/device/aidl/android/hardware/camera/device/Stream.aidl
@@ -203,4 +203,23 @@
      *
      */
     android.hardware.camera.metadata.RequestAvailableDynamicRangeProfilesMap dynamicRangeProfile;
+
+    /**
+     * The stream use case describing the stream's purpose
+     *
+     * This flag provides the camera device a hint on what user scenario this
+     * stream is intended for. With this flag, the camera device can optimize
+     * camera pipeline parameters, such as tuning, sensor mode, and ISP settings,
+     * for the intended use case.
+     *
+     * When this field is set to DEFAULT, the camera device should behave in
+     * the same way as in previous HAL versions, and optimize the camera pipeline
+     * based on stream format, data space, usage flag, and other stream properties.
+     *
+     * The HAL reports supported stream use cases in
+     * ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES. If the HAL doesn't support
+     * setting stream use cases, the camera framework leaves this field as
+     * DEFAULT.
+     */
+    android.hardware.camera.metadata.ScalerAvailableStreamUseCases useCase;
 }
diff --git a/camera/metadata/aidl/aidl_api/android.hardware.camera.metadata/current/android/hardware/camera/metadata/CameraMetadataTag.aidl b/camera/metadata/aidl/aidl_api/android.hardware.camera.metadata/current/android/hardware/camera/metadata/CameraMetadataTag.aidl
index 34a1211..432c9fd 100644
--- a/camera/metadata/aidl/aidl_api/android.hardware.camera.metadata/current/android/hardware/camera/metadata/CameraMetadataTag.aidl
+++ b/camera/metadata/aidl/aidl_api/android.hardware.camera.metadata/current/android/hardware/camera/metadata/CameraMetadataTag.aidl
@@ -195,6 +195,7 @@
   ANDROID_SCALER_AVAILABLE_STALL_DURATIONS_MAXIMUM_RESOLUTION = 851989,
   ANDROID_SCALER_AVAILABLE_INPUT_OUTPUT_FORMATS_MAP_MAXIMUM_RESOLUTION = 851990,
   ANDROID_SCALER_MULTI_RESOLUTION_STREAM_SUPPORTED = 851991,
+  ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES = 851992,
   ANDROID_SENSOR_EXPOSURE_TIME = 917504,
   ANDROID_SENSOR_FRAME_DURATION = 917505,
   ANDROID_SENSOR_SENSITIVITY = 917506,
diff --git a/camera/metadata/aidl/aidl_api/android.hardware.camera.metadata/current/android/hardware/camera/metadata/ScalerAvailableStreamUseCases.aidl b/camera/metadata/aidl/aidl_api/android.hardware.camera.metadata/current/android/hardware/camera/metadata/ScalerAvailableStreamUseCases.aidl
new file mode 100644
index 0000000..0ed55a3
--- /dev/null
+++ b/camera/metadata/aidl/aidl_api/android.hardware.camera.metadata/current/android/hardware/camera/metadata/ScalerAvailableStreamUseCases.aidl
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *//*
+ * Autogenerated from camera metadata definitions in
+ * /system/media/camera/docs/metadata_definitions.xml
+ * *** DO NOT EDIT BY HAND ***
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.camera.metadata;
+@Backing(type="int") @VintfStability
+enum ScalerAvailableStreamUseCases {
+  ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_DEFAULT = 0,
+  ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_PREVIEW = 1,
+  ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_STILL_CAPTURE = 2,
+  ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_VIDEO_RECORD = 3,
+  ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_PREVIEW_VIDEO_STILL = 4,
+  ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_VIDEO_CALL = 5,
+  ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_VENDOR_START = 65536,
+}
diff --git a/camera/metadata/aidl/android/hardware/camera/metadata/CameraMetadataTag.aidl b/camera/metadata/aidl/android/hardware/camera/metadata/CameraMetadataTag.aidl
index fb7ca12..1f388d9 100644
--- a/camera/metadata/aidl/android/hardware/camera/metadata/CameraMetadataTag.aidl
+++ b/camera/metadata/aidl/android/hardware/camera/metadata/CameraMetadataTag.aidl
@@ -1225,6 +1225,12 @@
      */
     ANDROID_SCALER_MULTI_RESOLUTION_STREAM_SUPPORTED,
     /**
+     * android.scaler.availableStreamUseCases [static, enum[], public]
+     *
+     * <p>The stream use cases supported by this camera device.</p>
+     */
+    ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES,
+    /**
      * android.sensor.exposureTime [dynamic, int64, public]
      *
      * <p>Duration each pixel is exposed to
diff --git a/camera/metadata/aidl/android/hardware/camera/metadata/ScalerAvailableStreamUseCases.aidl b/camera/metadata/aidl/android/hardware/camera/metadata/ScalerAvailableStreamUseCases.aidl
new file mode 100644
index 0000000..19ebab5
--- /dev/null
+++ b/camera/metadata/aidl/android/hardware/camera/metadata/ScalerAvailableStreamUseCases.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Autogenerated from camera metadata definitions in
+ * /system/media/camera/docs/metadata_definitions.xml
+ * *** DO NOT EDIT BY HAND ***
+ */
+
+package android.hardware.camera.metadata;
+
+/**
+ * android.scaler.availableStreamUseCases enumeration values
+ * @see ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES
+ */
+@VintfStability
+@Backing(type="int")
+enum ScalerAvailableStreamUseCases {
+    ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_DEFAULT = 0x0,
+    ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_PREVIEW = 0x1,
+    ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_STILL_CAPTURE = 0x2,
+    ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_VIDEO_RECORD = 0x3,
+    ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_PREVIEW_VIDEO_STILL = 0x4,
+    ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_VIDEO_CALL = 0x5,
+    ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_VENDOR_START = 0x10000,
+}