diff --git a/audio/aidl/Android.bp b/audio/aidl/Android.bp
index 05c7649..674b644 100644
--- a/audio/aidl/Android.bp
+++ b/audio/aidl/Android.bp
@@ -113,7 +113,9 @@
         "android/hardware/audio/core/AudioRoute.aidl",
         "android/hardware/audio/core/IConfig.aidl",
         "android/hardware/audio/core/IModule.aidl",
+        "android/hardware/audio/core/ISoundDose.aidl",
         "android/hardware/audio/core/IStreamCallback.aidl",
+        "android/hardware/audio/core/IStreamCommon.aidl",
         "android/hardware/audio/core/IStreamIn.aidl",
         "android/hardware/audio/core/IStreamOut.aidl",
         "android/hardware/audio/core/ITelephony.aidl",
@@ -123,6 +125,7 @@
         "android/hardware/audio/core/ModuleDebug.aidl",
         "android/hardware/audio/core/StreamDescriptor.aidl",
         "android/hardware/audio/core/SurroundSoundConfig.aidl",
+        "android/hardware/audio/core/VendorParameter.aidl",
     ],
     imports: [
         "android.hardware.common-V2",
diff --git a/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IModule.aidl b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IModule.aidl
index 0c7ca27..ebfa94b 100644
--- a/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IModule.aidl
+++ b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IModule.aidl
@@ -60,6 +60,10 @@
   void updateAudioMode(android.hardware.audio.core.AudioMode mode);
   void updateScreenRotation(android.hardware.audio.core.IModule.ScreenRotation rotation);
   void updateScreenState(boolean isTurnedOn);
+  @nullable android.hardware.audio.core.ISoundDose getSoundDose();
+  int generateHwAvSyncId();
+  android.hardware.audio.core.VendorParameter[] getVendorParameters(in @utf8InCpp String[] ids);
+  void setVendorParameters(in android.hardware.audio.core.VendorParameter[] parameters, boolean async);
   @VintfStability
   parcelable OpenInputStreamArguments {
     int portConfigId;
diff --git a/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/ISoundDose.aidl b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/ISoundDose.aidl
new file mode 100644
index 0000000..bc010ca
--- /dev/null
+++ b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/ISoundDose.aidl
@@ -0,0 +1,52 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.audio.core;
+@VintfStability
+interface ISoundDose {
+  void setOutputRs2(float rs2ValueDbA);
+  float getOutputRs2();
+  void registerSoundDoseCallback(in android.hardware.audio.core.ISoundDose.IHalSoundDoseCallback callback);
+  const int DEFAULT_MAX_RS2 = 100;
+  const int MIN_RS2 = 80;
+  @VintfStability
+  interface IHalSoundDoseCallback {
+    oneway void onMomentaryExposureWarning(float currentDbA, in android.media.audio.common.AudioDevice audioDevice);
+    oneway void onNewMelValues(in android.hardware.audio.core.ISoundDose.IHalSoundDoseCallback.MelRecord melRecord, in android.media.audio.common.AudioDevice audioDevice);
+    @VintfStability
+    parcelable MelRecord {
+      float[] melValues;
+      long timestamp;
+    }
+  }
+}
diff --git a/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamCommon.aidl b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamCommon.aidl
new file mode 100644
index 0000000..8471c79
--- /dev/null
+++ b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamCommon.aidl
@@ -0,0 +1,41 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.audio.core;
+@VintfStability
+interface IStreamCommon {
+  void close();
+  void updateHwAvSyncId(int hwAvSyncId);
+  android.hardware.audio.core.VendorParameter[] getVendorParameters(in @utf8InCpp String[] ids);
+  void setVendorParameters(in android.hardware.audio.core.VendorParameter[] parameters, boolean async);
+}
diff --git a/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamIn.aidl b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamIn.aidl
index e9c727f..98acf5f 100644
--- a/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamIn.aidl
+++ b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamIn.aidl
@@ -34,7 +34,7 @@
 package android.hardware.audio.core;
 @VintfStability
 interface IStreamIn {
-  void close();
+  android.hardware.audio.core.IStreamCommon getStreamCommon();
   android.hardware.audio.core.MicrophoneDynamicInfo[] getActiveMicrophones();
   android.hardware.audio.core.IStreamIn.MicrophoneDirection getMicrophoneDirection();
   void setMicrophoneDirection(android.hardware.audio.core.IStreamIn.MicrophoneDirection direction);
diff --git a/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamOut.aidl b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamOut.aidl
index 3021d94..5ea2a12 100644
--- a/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamOut.aidl
+++ b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/IStreamOut.aidl
@@ -34,6 +34,6 @@
 package android.hardware.audio.core;
 @VintfStability
 interface IStreamOut {
-  void close();
+  android.hardware.audio.core.IStreamCommon getStreamCommon();
   void updateMetadata(in android.hardware.audio.common.SourceMetadata sourceMetadata);
 }
diff --git a/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/VendorParameter.aidl b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/VendorParameter.aidl
new file mode 100644
index 0000000..bfe33ee
--- /dev/null
+++ b/audio/aidl/aidl_api/android.hardware.audio.core/current/android/hardware/audio/core/VendorParameter.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.audio.core;
+@JavaDerive(equals=true, toString=true) @VintfStability
+parcelable VendorParameter {
+  @utf8InCpp String id;
+  ParcelableHolder ext;
+}
diff --git a/audio/aidl/android/hardware/audio/core/IModule.aidl b/audio/aidl/android/hardware/audio/core/IModule.aidl
index 786d5ee..7facc6c 100644
--- a/audio/aidl/android/hardware/audio/core/IModule.aidl
+++ b/audio/aidl/android/hardware/audio/core/IModule.aidl
@@ -21,6 +21,7 @@
 import android.hardware.audio.core.AudioMode;
 import android.hardware.audio.core.AudioPatch;
 import android.hardware.audio.core.AudioRoute;
+import android.hardware.audio.core.ISoundDose;
 import android.hardware.audio.core.IStreamCallback;
 import android.hardware.audio.core.IStreamIn;
 import android.hardware.audio.core.IStreamOut;
@@ -28,6 +29,7 @@
 import android.hardware.audio.core.MicrophoneInfo;
 import android.hardware.audio.core.ModuleDebug;
 import android.hardware.audio.core.StreamDescriptor;
+import android.hardware.audio.core.VendorParameter;
 import android.media.audio.common.AudioOffloadInfo;
 import android.media.audio.common.AudioPort;
 import android.media.audio.common.AudioPortConfig;
@@ -668,4 +670,62 @@
      * @param isTurnedOn True if the screen is turned on.
      */
     void updateScreenState(boolean isTurnedOn);
+
+    /**
+     * Retrieve the sound dose interface.
+     *
+     * If a device must comply to IEC62368-1 3rd edition audio safety requirements and is
+     * implementing audio offload decoding or other direct playback paths where volume control
+     * happens below the audio HAL, it must return an instance of the ISoundDose interface.
+     * The same instance must be returned during the lifetime of the HAL module.
+     * If the HAL module does not support sound dose, null must be returned, without throwing
+     * any errors.
+     *
+     * @return An instance of the ISoundDose interface implementation.
+     * @throws EX_ILLEGAL_STATE If there was an error creating an instance.
+     */
+    @nullable ISoundDose getSoundDose();
+
+    /**
+     * Generate a HW AV Sync identifier for a new audio session.
+     *
+     * Creates a new unique identifier which can be further used by the client
+     * for tagging input / output streams that belong to the same audio
+     * session and thus must use the same HW AV Sync timestamps sequence.
+     *
+     * HW AV Sync timestamps are used for "tunneled" I/O modes and thus
+     * are not mandatory.
+     *
+     * @throws EX_ILLEGAL_STATE If the identifier can not be provided at the moment.
+     * @throws EX_UNSUPPORTED_OPERATION If synchronization with HW AV Sync markers
+     *                                  is not supported.
+     */
+    int generateHwAvSyncId();
+
+    /**
+     * Get current values of vendor parameters.
+     *
+     * Return current values for the parameters corresponding to the provided ids.
+     *
+     * @param ids Ids of the parameters to retrieve values of.
+     * @return Current values of parameters, one per each id.
+     * @throws EX_ILLEGAL_ARGUMENT If the module does not recognize provided ids.
+     * @throws EX_ILLEGAL_STATE If parameter values can not be retrieved at the moment.
+     * @throws EX_UNSUPPORTED_OPERATION If the module does not support vendor parameters.
+     */
+    VendorParameter[] getVendorParameters(in @utf8InCpp String[] ids);
+    /**
+     * Set vendor parameters.
+     *
+     * Update values for provided vendor parameters. If the 'async' parameter
+     * is set to 'true', the implementation must return the control back without
+     * waiting for the application of parameters to complete.
+     *
+     * @param parameters Ids and values of parameters to set.
+     * @param async Whether to return from the method as early as possible.
+     * @throws EX_ILLEGAL_ARGUMENT If the module does not recognize provided parameters.
+     * @throws EX_ILLEGAL_STATE If parameters can not be set at the moment.
+     * @throws EX_UNSUPPORTED_OPERATION If the module does not support vendor parameters.
+     */
+    void setVendorParameters(in VendorParameter[] parameters, boolean async);
 }
diff --git a/audio/aidl/android/hardware/audio/core/ISoundDose.aidl b/audio/aidl/android/hardware/audio/core/ISoundDose.aidl
new file mode 100644
index 0000000..89fd69b
--- /dev/null
+++ b/audio/aidl/android/hardware/audio/core/ISoundDose.aidl
@@ -0,0 +1,104 @@
+/*
+ * 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.
+ */
+
+package android.hardware.audio.core;
+
+import android.media.audio.common.AudioDevice;
+
+/**
+ * This interface provides functions related to sound exposure control required for compliance to
+ * EN/IEC 62368-1 3rd edition. Implementing this interface is mandatory for devices for which
+ * compliance to this standard is mandated and implementing audio offload decoding or other direct
+ * playback paths where volume control happens below the audio HAL.
+ */
+@VintfStability
+interface ISoundDose {
+    /**
+     * Max value in dBA used for momentary exposure warnings as defined by IEC62368-1
+     * 3rd edition. This value represents the default RS2 value.
+     */
+    const int DEFAULT_MAX_RS2 = 100;
+    /** Min value of the RS2 threshold in dBA as defined by IEC62368-1 3rd edition. */
+    const int MIN_RS2 = 80;
+
+    /**
+     * Sets the RS2 value used for momentary exposure warnings. Default value is
+     * DEFAULT_MAX_RS2 as specified in IEC62368-1 3rd edition.
+     *
+     * @param rs2ValueDbA custom RS2 value to use. Must not be higher than DEFAULT_MAX_RS2
+     * @throws EX_ILLEGAL_ARGUMENT if rs2ValueDbA is greater than DEFAULT_MAX_RS2 or lower
+     *                             than 80dBA
+     */
+    void setOutputRs2(float rs2ValueDbA);
+
+    /**
+     * Gets the RS2 value used for momentary exposure warnings.
+     *
+     * @return the RS2 value in dBA
+     */
+    float getOutputRs2();
+
+    /**
+     * Registers the HAL callback for sound dose computation. If sound dose is supported
+     * the MEL values and exposure notifications will be received through this callback
+     * only. The internal framework MEL computation will be disabled.
+     * It is not possible to unregister the callback. The HAL is responsible to provide
+     * the MEL values throughout its lifecycle.
+     * This method should only be called once (no updates allowed) with a valid callback.
+     *
+     * @param callback to use when new updates are available for sound dose
+     * @throws EX_ILLEGAL_STATE if the method is called more than once
+     * @throws EX_ILLEGAL_ARGUMENT if the passed callback is null
+     */
+    void registerSoundDoseCallback(in IHalSoundDoseCallback callback);
+
+    @VintfStability
+    oneway interface IHalSoundDoseCallback {
+        /**
+         * Called whenever the current MEL value exceeds the set RS2 value.
+         *
+         * @param currentDbA the current MEL value which exceeds the RS2 value
+         * @param audioDevice the audio device where the MEL exposure warning was recorded
+         */
+        void onMomentaryExposureWarning(float currentDbA, in AudioDevice audioDevice);
+
+        @VintfStability
+        parcelable MelRecord {
+            /**
+             * Array of continuously recorded MEL values >= RS1 (1 per second).
+             * First value in the array was recorded at 'timestamp'.
+             */
+            float[] melValues;
+            /**
+             * Corresponds to the time in seconds when the first MEL entry in melValues
+             * was recorded. The timestamp values have to be consistent throughout all
+             * audio ports, equal timestamp values will be aggregated.
+             */
+            long timestamp;
+        }
+
+        /**
+         * Provides a MelRecord containing continuous MEL values sorted by timestamp.
+         * Note that all the MEL values originate from the audio device specified by audioDevice.
+         * In case values from multiple devices need to be reported, the caller should execute
+         * this callback once for every device.
+         *
+         * @param melRecord contains the MEL values used for CSD
+         * @param audioDevice the audio device where the MEL values were recorded
+         */
+        void onNewMelValues(in MelRecord melRecord, in AudioDevice audioDevice);
+    }
+}
diff --git a/audio/aidl/android/hardware/audio/core/IStreamCommon.aidl b/audio/aidl/android/hardware/audio/core/IStreamCommon.aidl
new file mode 100644
index 0000000..84f7309
--- /dev/null
+++ b/audio/aidl/android/hardware/audio/core/IStreamCommon.aidl
@@ -0,0 +1,89 @@
+/*
+ * 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.
+ */
+
+package android.hardware.audio.core;
+
+import android.hardware.audio.core.VendorParameter;
+
+/**
+ * This interface contains operations that are common to input and output
+ * streams (IStreamIn and IStreamOut). The lifetime of the server-side
+ * implementation object is the same as of the "parent" IStreamIn/Out object.
+ * The client must release all references to this object together with
+ * references to the "parent" object.
+ */
+@VintfStability
+interface IStreamCommon {
+    /**
+     * Close the stream.
+     *
+     * Releases any resources allocated for this stream on the HAL module side.
+     * This includes the fast message queues and shared memories returned via
+     * the StreamDescriptor. Thus, the stream can not be operated anymore after
+     * it has been closed. The client needs to release the audio data I/O
+     * objects after the call to this method returns.
+     *
+     * Methods of IStream* interfaces throw EX_ILLEGAL_STATE for a closed stream.
+     *
+     * @throws EX_ILLEGAL_STATE If the stream has already been closed.
+     */
+    void close();
+
+    /**
+     * Update the HW AV Sync identifier for the stream.
+     *
+     * The argument to this method must be one of the identifiers previously
+     * returned by the 'IModule.generateHwAvSyncId' method. By tagging streams
+     * with the same identifier, the client indicates to the HAL that they all
+     * use the same HW AV Sync timestamps sequence.
+     *
+     * HW AV Sync timestamps are used for "tunneled" I/O modes and thus
+     * are not mandatory.
+     *
+     * @throws EX_ILLEGAL_ARGUMENT If the provided ID is unknown to the HAL module.
+     * @throws EX_ILLEGAL_STATE If the stream is closed.
+     * @throws EX_UNSUPPORTED_OPERATION If synchronization with HW AV Sync markers
+     *                                  is not supported.
+     */
+    void updateHwAvSyncId(int hwAvSyncId);
+
+    /**
+     * Get current values of vendor parameters.
+     *
+     * Return current values for the parameters corresponding to the provided ids.
+     *
+     * @param ids Ids of the parameters to retrieve values of.
+     * @return Current values of parameters.
+     * @throws EX_ILLEGAL_ARGUMENT If the stream does not recognize provided ids.
+     * @throws EX_ILLEGAL_STATE If parameter values can not be retrieved at the moment.
+     * @throws EX_UNSUPPORTED_OPERATION If the stream does not support vendor parameters.
+     */
+    VendorParameter[] getVendorParameters(in @utf8InCpp String[] ids);
+    /**
+     * Set vendor parameters.
+     *
+     * Update values for provided vendor parameters. If the 'async' parameter
+     * is set to 'true', the implementation must return the control back without
+     * waiting for the application of parameters to complete.
+     *
+     * @param parameters Ids and values of parameters to set.
+     * @param async Whether to return from the method as early as possible.
+     * @throws EX_ILLEGAL_ARGUMENT If the stream does not recognize provided parameters.
+     * @throws EX_ILLEGAL_STATE If parameters can not be set at the moment.
+     * @throws EX_UNSUPPORTED_OPERATION If the stream does not support vendor parameters.
+     */
+    void setVendorParameters(in VendorParameter[] parameters, boolean async);
+}
diff --git a/audio/aidl/android/hardware/audio/core/IStreamIn.aidl b/audio/aidl/android/hardware/audio/core/IStreamIn.aidl
index 0b6e02c..92788a6 100644
--- a/audio/aidl/android/hardware/audio/core/IStreamIn.aidl
+++ b/audio/aidl/android/hardware/audio/core/IStreamIn.aidl
@@ -17,6 +17,7 @@
 package android.hardware.audio.core;
 
 import android.hardware.audio.common.SinkMetadata;
+import android.hardware.audio.core.IStreamCommon;
 import android.hardware.audio.core.MicrophoneDynamicInfo;
 
 /**
@@ -25,19 +26,15 @@
 @VintfStability
 interface IStreamIn {
     /**
-     * Close the stream.
+     * Return the interface for common stream operations.
      *
-     * Releases any resources allocated for this stream on the HAL module side.
-     * This includes the fast message queues and shared memories returned via
-     * the StreamDescriptor. Thus, the stream can not be operated anymore after
-     * it has been closed. The client needs to release the audio data I/O
-     * objects after the call to this method returns.
+     * This method must always succeed. The implementation must
+     * return the same instance object for all subsequent calls to
+     * this method.
      *
-     * Methods of this interface throw EX_ILLEGAL_STATE for a closed stream.
-     *
-     * @throws EX_ILLEGAL_STATE If the stream has already been closed.
+     * @return The interface for common operations.
      */
-    void close();
+    IStreamCommon getStreamCommon();
 
     /**
      * Provides information on the microphones that are active for this stream.
diff --git a/audio/aidl/android/hardware/audio/core/IStreamOut.aidl b/audio/aidl/android/hardware/audio/core/IStreamOut.aidl
index 9fdb37d..f7fc77a 100644
--- a/audio/aidl/android/hardware/audio/core/IStreamOut.aidl
+++ b/audio/aidl/android/hardware/audio/core/IStreamOut.aidl
@@ -17,6 +17,7 @@
 package android.hardware.audio.core;
 
 import android.hardware.audio.common.SourceMetadata;
+import android.hardware.audio.core.IStreamCommon;
 
 /**
  * This interface provides means for sending audio data to output devices.
@@ -24,19 +25,15 @@
 @VintfStability
 interface IStreamOut {
     /**
-     * Close the stream.
+     * Return the interface for common stream operations.
      *
-     * Releases any resources allocated for this stream on the HAL module side.
-     * This includes the fast message queues and shared memories returned via
-     * the StreamDescriptor. Thus, the stream can not be operated anymore after
-     * it has been closed. The client needs to release the audio data I/O
-     * objects after the call to this method returns.
+     * This method must always succeed. The implementation must
+     * return the same instance object for all subsequent calls to
+     * this method.
      *
-     * Methods of this interface throw EX_ILLEGAL_STATE for a closed stream.
-     *
-     * @throws EX_ILLEGAL_STATE If the stream has already been closed.
+     * @return The interface for common operations.
      */
-    void close();
+    IStreamCommon getStreamCommon();
 
     /**
      * Update stream metadata.
diff --git a/audio/aidl/android/hardware/audio/core/VendorParameter.aidl b/audio/aidl/android/hardware/audio/core/VendorParameter.aidl
new file mode 100644
index 0000000..206bd9d
--- /dev/null
+++ b/audio/aidl/android/hardware/audio/core/VendorParameter.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.
+ */
+
+package android.hardware.audio.core;
+
+/**
+ * Vendor parameters are used as a lightweight way to pass vendor-specific
+ * configuration data back and forth between the HAL and vendor's extension
+ * to the Android framework, without the need to extend audio interfaces
+ * from AOSP.
+ */
+@JavaDerive(equals=true, toString=true)
+@VintfStability
+parcelable VendorParameter {
+    /**
+     * Vendor-generated unique ID of the parameter. In order to avoid
+     * collisions, vendors must use a vendor-specific prefix for parameter
+     * ids. The Android framework always passes ids as-is, without any attempt
+     * to parse their content.
+     */
+    @utf8InCpp String id;
+    /**
+     * The payload of the parameter.
+     */
+    ParcelableHolder ext;
+}
diff --git a/audio/aidl/default/Android.bp b/audio/aidl/default/Android.bp
index f2cebbf..b9b8cd8 100644
--- a/audio/aidl/default/Android.bp
+++ b/audio/aidl/default/Android.bp
@@ -43,6 +43,7 @@
         "Configuration.cpp",
         "EngineConfigXmlConverter.cpp",
         "Module.cpp",
+        "SoundDose.cpp",
         "Stream.cpp",
         "Telephony.cpp",
     ],
diff --git a/audio/aidl/default/EffectFactory.cpp b/audio/aidl/default/EffectFactory.cpp
index 7ae9a66..3b40ae0 100644
--- a/audio/aidl/default/EffectFactory.cpp
+++ b/audio/aidl/default/EffectFactory.cpp
@@ -40,12 +40,13 @@
 }
 
 Factory::~Factory() {
-    if (auto count = mEffectUuidMap.size()) {
+    if (auto count = mEffectMap.size()) {
         LOG(ERROR) << __func__ << " remaining " << count
                    << " effect instances not destroyed indicating resource leak!";
-        for (const auto& it : mEffectUuidMap) {
+        for (const auto& it : mEffectMap) {
             if (auto spEffect = it.first.lock()) {
-                LOG(ERROR) << __func__ << " erase remaining instance UUID " << it.second.toString();
+                LOG(ERROR) << __func__ << " erase remaining instance UUID "
+                           << it.second.first.toString();
                 destroyEffectImpl(spEffect);
             }
         }
@@ -109,9 +110,10 @@
             return ndk::ScopedAStatus::fromExceptionCode(EX_TRANSACTION_FAILED);
         }
         *_aidl_return = effectSp;
-        AIBinder_setMinSchedulerPolicy(effectSp->asBinder().get(), SCHED_NORMAL,
-                                       ANDROID_PRIORITY_AUDIO);
-        mEffectUuidMap[std::weak_ptr<IEffect>(effectSp)] = in_impl_uuid;
+        ndk::SpAIBinder effectBinder = effectSp->asBinder();
+        AIBinder_setMinSchedulerPolicy(effectBinder.get(), SCHED_NORMAL, ANDROID_PRIORITY_AUDIO);
+        mEffectMap[std::weak_ptr<IEffect>(effectSp)] =
+                std::make_pair(in_impl_uuid, std::move(effectBinder));
         LOG(DEBUG) << __func__ << ": instance " << effectSp.get() << " created successfully";
         return ndk::ScopedAStatus::ok();
     } else {
@@ -123,9 +125,9 @@
 
 ndk::ScopedAStatus Factory::destroyEffectImpl(const std::shared_ptr<IEffect>& in_handle) {
     std::weak_ptr<IEffect> wpHandle(in_handle);
-    // find UUID with key (std::weak_ptr<IEffect>)
-    if (auto uuidIt = mEffectUuidMap.find(wpHandle); uuidIt != mEffectUuidMap.end()) {
-        auto& uuid = uuidIt->second;
+    // find the effect entry with key (std::weak_ptr<IEffect>)
+    if (auto effectIt = mEffectMap.find(wpHandle); effectIt != mEffectMap.end()) {
+        auto& uuid = effectIt->second.first;
         // find implementation library with UUID
         if (auto libIt = mEffectLibMap.find(uuid); libIt != mEffectLibMap.end()) {
             auto& interface = std::get<kMapEntryInterfaceIndex>(libIt->second);
@@ -136,7 +138,7 @@
             LOG(ERROR) << __func__ << ": UUID " << uuid.toString() << " does not exist in libMap!";
             return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
         }
-        mEffectUuidMap.erase(uuidIt);
+        mEffectMap.erase(effectIt);
         return ndk::ScopedAStatus::ok();
     } else {
         LOG(ERROR) << __func__ << ": instance " << in_handle << " does not exist!";
@@ -146,9 +148,9 @@
 
 // go over the map and cleanup all expired weak_ptrs.
 void Factory::cleanupEffectMap() {
-    for (auto it = mEffectUuidMap.begin(); it != mEffectUuidMap.end();) {
+    for (auto it = mEffectMap.begin(); it != mEffectMap.end();) {
         if (nullptr == it->first.lock()) {
-            it = mEffectUuidMap.erase(it);
+            it = mEffectMap.erase(it);
         } else {
             ++it;
         }
diff --git a/audio/aidl/default/EngineConfigXmlConverter.cpp b/audio/aidl/default/EngineConfigXmlConverter.cpp
index 71b4b0e..5f17d71 100644
--- a/audio/aidl/default/EngineConfigXmlConverter.cpp
+++ b/audio/aidl/default/EngineConfigXmlConverter.cpp
@@ -20,7 +20,9 @@
 #include <functional>
 #include <unordered_map>
 
+#include <aidl/android/media/audio/common/AudioFlag.h>
 #include <aidl/android/media/audio/common/AudioHalEngineConfig.h>
+#include <aidl/android/media/audio/common/AudioProductStrategyType.h>
 
 #include "core-impl/EngineConfigXmlConverter.h"
 
diff --git a/audio/aidl/default/Module.cpp b/audio/aidl/default/Module.cpp
index 47d6fa4..d52e328 100644
--- a/audio/aidl/default/Module.cpp
+++ b/audio/aidl/default/Module.cpp
@@ -26,6 +26,7 @@
 #include <aidl/android/media/audio/common/AudioOutputFlags.h>
 
 #include "core-impl/Module.h"
+#include "core-impl/SoundDose.h"
 #include "core-impl/Telephony.h"
 #include "core-impl/utils.h"
 
@@ -315,7 +316,8 @@
 ndk::ScopedAStatus Module::getTelephony(std::shared_ptr<ITelephony>* _aidl_return) {
     if (mTelephony == nullptr) {
         mTelephony = ndk::SharedRefBase::make<Telephony>();
-        AIBinder_setMinSchedulerPolicy(mTelephony->asBinder().get(), SCHED_NORMAL,
+        mTelephonyBinder = mTelephony->asBinder();
+        AIBinder_setMinSchedulerPolicy(mTelephonyBinder.get(), SCHED_NORMAL,
                                        ANDROID_PRIORITY_AUDIO);
     }
     *_aidl_return = mTelephony;
@@ -530,13 +532,15 @@
         return status;
     }
     context.fillDescriptor(&_aidl_return->desc);
-    auto stream = ndk::SharedRefBase::make<StreamIn>(in_args.sinkMetadata, std::move(context),
-                                                     mConfig->microphones);
-    if (auto status = stream->init(); !status.isOk()) {
+    std::shared_ptr<StreamIn> stream;
+    if (auto status = StreamIn::createInstance(in_args.sinkMetadata, std::move(context),
+                                               mConfig->microphones, &stream);
+        !status.isOk()) {
         return status;
     }
-    AIBinder_setMinSchedulerPolicy(stream->asBinder().get(), SCHED_NORMAL, ANDROID_PRIORITY_AUDIO);
     StreamWrapper streamWrapper(stream);
+    AIBinder_setMinSchedulerPolicy(streamWrapper.getBinder().get(), SCHED_NORMAL,
+                                   ANDROID_PRIORITY_AUDIO);
     auto patchIt = mPatches.find(in_args.portConfigId);
     if (patchIt != mPatches.end()) {
         streamWrapper.setStreamIsConnected(findConnectedDevices(in_args.portConfigId));
@@ -581,13 +585,15 @@
         return status;
     }
     context.fillDescriptor(&_aidl_return->desc);
-    auto stream = ndk::SharedRefBase::make<StreamOut>(in_args.sourceMetadata, std::move(context),
-                                                      in_args.offloadInfo);
-    if (auto status = stream->init(); !status.isOk()) {
+    std::shared_ptr<StreamOut> stream;
+    if (auto status = StreamOut::createInstance(in_args.sourceMetadata, std::move(context),
+                                                in_args.offloadInfo, &stream);
+        !status.isOk()) {
         return status;
     }
-    AIBinder_setMinSchedulerPolicy(stream->asBinder().get(), SCHED_NORMAL, ANDROID_PRIORITY_AUDIO);
     StreamWrapper streamWrapper(stream);
+    AIBinder_setMinSchedulerPolicy(streamWrapper.getBinder().get(), SCHED_NORMAL,
+                                   ANDROID_PRIORITY_AUDIO);
     auto patchIt = mPatches.find(in_args.portConfigId);
     if (patchIt != mPatches.end()) {
         streamWrapper.setStreamIsConnected(findConnectedDevices(in_args.portConfigId));
@@ -931,4 +937,36 @@
     return ndk::ScopedAStatus::ok();
 }
 
+ndk::ScopedAStatus Module::getSoundDose(std::shared_ptr<ISoundDose>* _aidl_return) {
+    if (mSoundDose == nullptr) {
+        mSoundDose = ndk::SharedRefBase::make<SoundDose>();
+        mSoundDoseBinder = mSoundDose->asBinder();
+        AIBinder_setMinSchedulerPolicy(mSoundDoseBinder.get(), SCHED_NORMAL,
+                                       ANDROID_PRIORITY_AUDIO);
+    }
+    *_aidl_return = mSoundDose;
+    LOG(DEBUG) << __func__ << ": returning instance of ISoundDose: " << _aidl_return->get();
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Module::generateHwAvSyncId(int32_t* _aidl_return) {
+    LOG(DEBUG) << __func__;
+    (void)_aidl_return;
+    return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+}
+
+ndk::ScopedAStatus Module::getVendorParameters(const std::vector<std::string>& in_ids,
+                                               std::vector<VendorParameter>* _aidl_return) {
+    LOG(DEBUG) << __func__ << ": id count: " << in_ids.size();
+    (void)_aidl_return;
+    return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+}
+
+ndk::ScopedAStatus Module::setVendorParameters(const std::vector<VendorParameter>& in_parameters,
+                                               bool in_async) {
+    LOG(DEBUG) << __func__ << ": parameter count " << in_parameters.size()
+               << ", async: " << in_async;
+    return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+}
+
 }  // namespace aidl::android::hardware::audio::core
diff --git a/audio/aidl/default/SoundDose.cpp b/audio/aidl/default/SoundDose.cpp
new file mode 100644
index 0000000..3d222a8
--- /dev/null
+++ b/audio/aidl/default/SoundDose.cpp
@@ -0,0 +1,57 @@
+/*
+ * 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.
+ */
+
+#define LOG_TAG "AHAL_SoundDose"
+
+#include "core-impl/SoundDose.h"
+
+#include <android-base/logging.h>
+
+namespace aidl::android::hardware::audio::core {
+
+ndk::ScopedAStatus SoundDose::setOutputRs2(float in_rs2ValueDbA) {
+    if (in_rs2ValueDbA < MIN_RS2 || in_rs2ValueDbA > DEFAULT_MAX_RS2) {
+        LOG(ERROR) << __func__ << ": RS2 value is invalid: " << in_rs2ValueDbA;
+        return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+
+    mRs2Value = in_rs2ValueDbA;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus SoundDose::getOutputRs2(float* _aidl_return) {
+    *_aidl_return = mRs2Value;
+    LOG(DEBUG) << __func__ << ": returning " << *_aidl_return;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus SoundDose::registerSoundDoseCallback(
+        const std::shared_ptr<ISoundDose::IHalSoundDoseCallback>& in_callback) {
+    if (in_callback.get() == nullptr) {
+        LOG(ERROR) << __func__ << ": Callback is nullptr";
+        return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+    if (mCallback != nullptr) {
+        LOG(ERROR) << __func__ << ": Sound dose callback was already registered";
+        return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
+    }
+
+    mCallback = in_callback;
+    LOG(DEBUG) << __func__ << ": Registered sound dose callback ";
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace aidl::android::hardware::audio::core
diff --git a/audio/aidl/default/Stream.cpp b/audio/aidl/default/Stream.cpp
index be5887c..424c3e4 100644
--- a/audio/aidl/default/Stream.cpp
+++ b/audio/aidl/default/Stream.cpp
@@ -16,6 +16,7 @@
 
 #define LOG_TAG "AHAL_Stream"
 #include <android-base/logging.h>
+#include <android/binder_ibinder_platform.h>
 #include <utils/SystemClock.h>
 
 #include <Utils.h>
@@ -486,7 +487,7 @@
 }
 
 template <class Metadata, class StreamWorker>
-StreamCommon<Metadata, StreamWorker>::~StreamCommon() {
+StreamCommonImpl<Metadata, StreamWorker>::~StreamCommonImpl() {
     if (!isClosed()) {
         LOG(ERROR) << __func__ << ": stream was not closed prior to destruction, resource leak";
         stopWorker();
@@ -495,7 +496,52 @@
 }
 
 template <class Metadata, class StreamWorker>
-ndk::ScopedAStatus StreamCommon<Metadata, StreamWorker>::close() {
+void StreamCommonImpl<Metadata, StreamWorker>::createStreamCommon(
+        const std::shared_ptr<StreamCommonInterface>& delegate) {
+    if (mCommon != nullptr) {
+        LOG(FATAL) << __func__ << ": attempting to create the common interface twice";
+    }
+    mCommon = ndk::SharedRefBase::make<StreamCommon>(delegate);
+    mCommonBinder = mCommon->asBinder();
+    AIBinder_setMinSchedulerPolicy(mCommonBinder.get(), SCHED_NORMAL, ANDROID_PRIORITY_AUDIO);
+}
+
+template <class Metadata, class StreamWorker>
+ndk::ScopedAStatus StreamCommonImpl<Metadata, StreamWorker>::getStreamCommon(
+        std::shared_ptr<IStreamCommon>* _aidl_return) {
+    if (mCommon == nullptr) {
+        LOG(FATAL) << __func__ << ": the common interface was not created";
+    }
+    *_aidl_return = mCommon;
+    LOG(DEBUG) << __func__ << ": returning " << _aidl_return->get()->asBinder().get();
+    return ndk::ScopedAStatus::ok();
+}
+
+template <class Metadata, class StreamWorker>
+ndk::ScopedAStatus StreamCommonImpl<Metadata, StreamWorker>::updateHwAvSyncId(
+        int32_t in_hwAvSyncId) {
+    LOG(DEBUG) << __func__ << ": id " << in_hwAvSyncId;
+    return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+}
+
+template <class Metadata, class StreamWorker>
+ndk::ScopedAStatus StreamCommonImpl<Metadata, StreamWorker>::getVendorParameters(
+        const std::vector<std::string>& in_ids, std::vector<VendorParameter>* _aidl_return) {
+    LOG(DEBUG) << __func__ << ": id count: " << in_ids.size();
+    (void)_aidl_return;
+    return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+}
+
+template <class Metadata, class StreamWorker>
+ndk::ScopedAStatus StreamCommonImpl<Metadata, StreamWorker>::setVendorParameters(
+        const std::vector<VendorParameter>& in_parameters, bool in_async) {
+    LOG(DEBUG) << __func__ << ": parameters count " << in_parameters.size()
+               << ", async: " << in_async;
+    return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+}
+
+template <class Metadata, class StreamWorker>
+ndk::ScopedAStatus StreamCommonImpl<Metadata, StreamWorker>::close() {
     LOG(DEBUG) << __func__;
     if (!isClosed()) {
         stopWorker();
@@ -512,7 +558,7 @@
 }
 
 template <class Metadata, class StreamWorker>
-void StreamCommon<Metadata, StreamWorker>::stopWorker() {
+void StreamCommonImpl<Metadata, StreamWorker>::stopWorker() {
     if (auto commandMQ = mContext.getCommandMQ(); commandMQ != nullptr) {
         LOG(DEBUG) << __func__ << ": asking the worker to exit...";
         auto cmd = StreamDescriptor::Command::make<StreamDescriptor::Command::Tag::halReservedExit>(
@@ -529,7 +575,8 @@
 }
 
 template <class Metadata, class StreamWorker>
-ndk::ScopedAStatus StreamCommon<Metadata, StreamWorker>::updateMetadata(const Metadata& metadata) {
+ndk::ScopedAStatus StreamCommonImpl<Metadata, StreamWorker>::updateMetadata(
+        const Metadata& metadata) {
     LOG(DEBUG) << __func__;
     if (!isClosed()) {
         mMetadata = metadata;
@@ -539,6 +586,20 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
 }
 
+// static
+ndk::ScopedAStatus StreamIn::createInstance(const common::SinkMetadata& sinkMetadata,
+                                            StreamContext context,
+                                            const std::vector<MicrophoneInfo>& microphones,
+                                            std::shared_ptr<StreamIn>* result) {
+    auto stream = ndk::SharedRefBase::make<StreamIn>(sinkMetadata, std::move(context), microphones);
+    if (auto status = stream->init(); !status.isOk()) {
+        return status;
+    }
+    stream->createStreamCommon(stream);
+    *result = std::move(stream);
+    return ndk::ScopedAStatus::ok();
+}
+
 namespace {
 static std::map<AudioDevice, std::string> transformMicrophones(
         const std::vector<MicrophoneInfo>& microphones) {
@@ -549,9 +610,9 @@
 }
 }  // namespace
 
-StreamIn::StreamIn(const SinkMetadata& sinkMetadata, StreamContext context,
+StreamIn::StreamIn(const SinkMetadata& sinkMetadata, StreamContext&& context,
                    const std::vector<MicrophoneInfo>& microphones)
-    : StreamCommon<SinkMetadata, StreamInWorker>(sinkMetadata, std::move(context)),
+    : StreamCommonImpl<SinkMetadata, StreamInWorker>(sinkMetadata, std::move(context)),
       mMicrophones(transformMicrophones(microphones)) {
     LOG(DEBUG) << __func__;
 }
@@ -597,9 +658,24 @@
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
-StreamOut::StreamOut(const SourceMetadata& sourceMetadata, StreamContext context,
+// static
+ndk::ScopedAStatus StreamOut::createInstance(const SourceMetadata& sourceMetadata,
+                                             StreamContext context,
+                                             const std::optional<AudioOffloadInfo>& offloadInfo,
+                                             std::shared_ptr<StreamOut>* result) {
+    auto stream =
+            ndk::SharedRefBase::make<StreamOut>(sourceMetadata, std::move(context), offloadInfo);
+    if (auto status = stream->init(); !status.isOk()) {
+        return status;
+    }
+    stream->createStreamCommon(stream);
+    *result = std::move(stream);
+    return ndk::ScopedAStatus::ok();
+}
+
+StreamOut::StreamOut(const SourceMetadata& sourceMetadata, StreamContext&& context,
                      const std::optional<AudioOffloadInfo>& offloadInfo)
-    : StreamCommon<SourceMetadata, StreamOutWorker>(sourceMetadata, std::move(context)),
+    : StreamCommonImpl<SourceMetadata, StreamOutWorker>(sourceMetadata, std::move(context)),
       mOffloadInfo(offloadInfo) {
     LOG(DEBUG) << __func__;
 }
diff --git a/audio/aidl/default/config/audioPolicy/api/current.txt b/audio/aidl/default/config/audioPolicy/api/current.txt
index c0ffe70..ad79a0c 100644
--- a/audio/aidl/default/config/audioPolicy/api/current.txt
+++ b/audio/aidl/default/config/audioPolicy/api/current.txt
@@ -167,6 +167,7 @@
     method @NonNull public String getRawName();
     enum_constant public static final android.audio.policy.configuration.AudioEncapsulationType AUDIO_ENCAPSULATION_TYPE_IEC61937;
     enum_constant public static final android.audio.policy.configuration.AudioEncapsulationType AUDIO_ENCAPSULATION_TYPE_NONE;
+    enum_constant public static final android.audio.policy.configuration.AudioEncapsulationType AUDIO_ENCAPSULATION_TYPE_PCM;
   }
 
   public enum AudioFormat {
@@ -280,6 +281,7 @@
     enum_constant public static final android.audio.policy.configuration.AudioInOutFlag AUDIO_INPUT_FLAG_SYNC;
     enum_constant public static final android.audio.policy.configuration.AudioInOutFlag AUDIO_INPUT_FLAG_ULTRASOUND;
     enum_constant public static final android.audio.policy.configuration.AudioInOutFlag AUDIO_INPUT_FLAG_VOIP_TX;
+    enum_constant public static final android.audio.policy.configuration.AudioInOutFlag AUDIO_OUTPUT_FLAG_BIT_PERFECT;
     enum_constant public static final android.audio.policy.configuration.AudioInOutFlag AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
     enum_constant public static final android.audio.policy.configuration.AudioInOutFlag AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
     enum_constant public static final android.audio.policy.configuration.AudioInOutFlag AUDIO_OUTPUT_FLAG_DIRECT;
diff --git a/audio/aidl/default/config/audioPolicy/audio_policy_configuration.xsd b/audio/aidl/default/config/audioPolicy/audio_policy_configuration.xsd
index 2c18a1e..301c969 100644
--- a/audio/aidl/default/config/audioPolicy/audio_policy_configuration.xsd
+++ b/audio/aidl/default/config/audioPolicy/audio_policy_configuration.xsd
@@ -181,6 +181,7 @@
             <xs:enumeration value="AUDIO_OUTPUT_FLAG_GAPLESS_OFFLOAD" />
             <xs:enumeration value="AUDIO_OUTPUT_FLAG_SPATIALIZER" />
             <xs:enumeration value="AUDIO_OUTPUT_FLAG_ULTRASOUND" />
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_BIT_PERFECT" />
             <xs:enumeration value="AUDIO_INPUT_FLAG_FAST" />
             <xs:enumeration value="AUDIO_INPUT_FLAG_HW_HOTWORD" />
             <xs:enumeration value="AUDIO_INPUT_FLAG_RAW" />
@@ -575,6 +576,7 @@
         <xs:restriction base="xs:string">
             <xs:enumeration value="AUDIO_ENCAPSULATION_TYPE_NONE"/>
             <xs:enumeration value="AUDIO_ENCAPSULATION_TYPE_IEC61937"/>
+            <xs:enumeration value="AUDIO_ENCAPSULATION_TYPE_PCM"/>
         </xs:restriction>
     </xs:simpleType>
     <xs:complexType name="profile">
diff --git a/audio/aidl/default/equalizer/EqualizerSw.h b/audio/aidl/default/equalizer/EqualizerSw.h
index 81bcd7a..65a8002 100644
--- a/audio/aidl/default/equalizer/EqualizerSw.h
+++ b/audio/aidl/default/equalizer/EqualizerSw.h
@@ -53,8 +53,9 @@
                 LOG(ERROR) << __func__ << " index illegal, skip: " << it.index << " - "
                            << it.levelMb;
                 ret = RetCode::ERROR_ILLEGAL_PARAMETER;
+            } else {
+                mBandLevels[it.index] = it.levelMb;
             }
-            mBandLevels[it.index] = it.levelMb;
         }
         return ret;
     }
diff --git a/audio/aidl/default/include/core-impl/Module.h b/audio/aidl/default/include/core-impl/Module.h
index 52fb54c..6baaa76 100644
--- a/audio/aidl/default/include/core-impl/Module.h
+++ b/audio/aidl/default/include/core-impl/Module.h
@@ -86,6 +86,12 @@
     ndk::ScopedAStatus updateScreenRotation(
             ::aidl::android::hardware::audio::core::IModule::ScreenRotation in_rotation) override;
     ndk::ScopedAStatus updateScreenState(bool in_isTurnedOn) override;
+    ndk::ScopedAStatus getSoundDose(std::shared_ptr<ISoundDose>* _aidl_return) override;
+    ndk::ScopedAStatus generateHwAvSyncId(int32_t* _aidl_return) override;
+    ndk::ScopedAStatus getVendorParameters(const std::vector<std::string>& in_ids,
+                                           std::vector<VendorParameter>* _aidl_return) override;
+    ndk::ScopedAStatus setVendorParameters(const std::vector<VendorParameter>& in_parameters,
+                                           bool in_async) override;
 
     void cleanUpPatch(int32_t patchId);
     ndk::ScopedAStatus createStreamContext(
@@ -114,6 +120,7 @@
     // Since it is required to return the same instance of the ITelephony, even
     // if the client has released it on its side, we need to hold it via a strong pointer.
     std::shared_ptr<ITelephony> mTelephony;
+    ndk::SpAIBinder mTelephonyBinder;
     // ids of ports created at runtime via 'connectExternalDevice'.
     std::set<int32_t> mConnectedDevicePorts;
     Streams mStreams;
@@ -123,6 +130,8 @@
     bool mMasterMute = false;
     float mMasterVolume = 1.0f;
     bool mMicMute = false;
+    std::shared_ptr<ISoundDose> mSoundDose;
+    ndk::SpAIBinder mSoundDoseBinder;
 };
 
 }  // namespace aidl::android::hardware::audio::core
diff --git a/audio/aidl/default/include/core-impl/SoundDose.h b/audio/aidl/default/include/core-impl/SoundDose.h
new file mode 100644
index 0000000..54a6cbf
--- /dev/null
+++ b/audio/aidl/default/include/core-impl/SoundDose.h
@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <mutex>
+
+#include <aidl/android/hardware/audio/core/BnSoundDose.h>
+#include <aidl/android/media/audio/common/AudioDevice.h>
+
+using aidl::android::media::audio::common::AudioDevice;
+
+namespace aidl::android::hardware::audio::core {
+
+class SoundDose : public BnSoundDose {
+  public:
+    SoundDose() : mRs2Value(DEFAULT_MAX_RS2){};
+
+    ndk::ScopedAStatus setOutputRs2(float in_rs2ValueDbA) override;
+    ndk::ScopedAStatus getOutputRs2(float* _aidl_return) override;
+    ndk::ScopedAStatus registerSoundDoseCallback(
+            const std::shared_ptr<ISoundDose::IHalSoundDoseCallback>& in_callback) override;
+
+  private:
+    std::shared_ptr<ISoundDose::IHalSoundDoseCallback> mCallback;
+    float mRs2Value;
+};
+
+}  // namespace aidl::android::hardware::audio::core
diff --git a/audio/aidl/default/include/core-impl/Stream.h b/audio/aidl/default/include/core-impl/Stream.h
index 7a07eeb..5746f9d 100644
--- a/audio/aidl/default/include/core-impl/Stream.h
+++ b/audio/aidl/default/include/core-impl/Stream.h
@@ -27,6 +27,7 @@
 #include <StreamWorker.h>
 #include <aidl/android/hardware/audio/common/SinkMetadata.h>
 #include <aidl/android/hardware/audio/common/SourceMetadata.h>
+#include <aidl/android/hardware/audio/core/BnStreamCommon.h>
 #include <aidl/android/hardware/audio/core/BnStreamIn.h>
 #include <aidl/android/hardware/audio/core/BnStreamOut.h>
 #include <aidl/android/hardware/audio/core/IStreamCallback.h>
@@ -197,10 +198,67 @@
 };
 using StreamOutWorker = ::android::hardware::audio::common::StreamWorker<StreamOutWorkerLogic>;
 
-template <class Metadata, class StreamWorker>
-class StreamCommon {
+// This provides a C++ interface with methods of the IStreamCommon Binder interface,
+// but intentionally does not inherit from it. This is needed to avoid inheriting
+// StreamIn and StreamOut from two Binder interface classes, as these parts of the class
+// will be reference counted separately.
+//
+// The implementation of these common methods is in the StreamCommonImpl template class.
+struct StreamCommonInterface {
+    virtual ~StreamCommonInterface() = default;
+    virtual ndk::ScopedAStatus close() = 0;
+    virtual ndk::ScopedAStatus updateHwAvSyncId(int32_t in_hwAvSyncId) = 0;
+    virtual ndk::ScopedAStatus getVendorParameters(const std::vector<std::string>& in_ids,
+                                                   std::vector<VendorParameter>* _aidl_return) = 0;
+    virtual ndk::ScopedAStatus setVendorParameters(
+            const std::vector<VendorParameter>& in_parameters, bool in_async) = 0;
+};
+
+class StreamCommon : public BnStreamCommon {
   public:
-    ndk::ScopedAStatus close();
+    explicit StreamCommon(const std::shared_ptr<StreamCommonInterface>& delegate)
+        : mDelegate(delegate) {}
+
+  private:
+    ndk::ScopedAStatus close() override {
+        auto delegate = mDelegate.lock();
+        return delegate != nullptr ? delegate->close()
+                                   : ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
+    }
+    ndk::ScopedAStatus updateHwAvSyncId(int32_t in_hwAvSyncId) override {
+        auto delegate = mDelegate.lock();
+        return delegate != nullptr ? delegate->updateHwAvSyncId(in_hwAvSyncId)
+                                   : ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
+    }
+    ndk::ScopedAStatus getVendorParameters(const std::vector<std::string>& in_ids,
+                                           std::vector<VendorParameter>* _aidl_return) override {
+        auto delegate = mDelegate.lock();
+        return delegate != nullptr ? delegate->getVendorParameters(in_ids, _aidl_return)
+                                   : ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
+    }
+    ndk::ScopedAStatus setVendorParameters(const std::vector<VendorParameter>& in_parameters,
+                                           bool in_async) override {
+        auto delegate = mDelegate.lock();
+        return delegate != nullptr ? delegate->setVendorParameters(in_parameters, in_async)
+                                   : ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
+    }
+    // It is possible that on the client side the proxy for IStreamCommon will outlive
+    // the IStream* instance, and the server side IStream* instance will get destroyed
+    // while this IStreamCommon instance is still alive.
+    std::weak_ptr<StreamCommonInterface> mDelegate;
+};
+
+template <class Metadata, class StreamWorker>
+class StreamCommonImpl : public StreamCommonInterface {
+  public:
+    ndk::ScopedAStatus close() override;
+    ndk::ScopedAStatus updateHwAvSyncId(int32_t in_hwAvSyncId) override;
+    ndk::ScopedAStatus getVendorParameters(const std::vector<std::string>& in_ids,
+                                           std::vector<VendorParameter>* _aidl_return) override;
+    ndk::ScopedAStatus setVendorParameters(const std::vector<VendorParameter>& in_parameters,
+                                           bool in_async) override;
+
+    ndk::ScopedAStatus getStreamCommon(std::shared_ptr<IStreamCommon>* _aidl_return);
     ndk::ScopedAStatus init() {
         return mWorker.start(StreamWorker::kThreadName, ANDROID_PRIORITY_AUDIO)
                        ? ndk::ScopedAStatus::ok()
@@ -215,23 +273,26 @@
     ndk::ScopedAStatus updateMetadata(const Metadata& metadata);
 
   protected:
-    StreamCommon(const Metadata& metadata, StreamContext context)
+    StreamCommonImpl(const Metadata& metadata, StreamContext&& context)
         : mMetadata(metadata), mContext(std::move(context)), mWorker(mContext) {}
-    ~StreamCommon();
+    ~StreamCommonImpl();
     void stopWorker();
+    void createStreamCommon(const std::shared_ptr<StreamCommonInterface>& delegate);
 
+    std::shared_ptr<StreamCommon> mCommon;
+    ndk::SpAIBinder mCommonBinder;
     Metadata mMetadata;
     StreamContext mContext;
     StreamWorker mWorker;
     std::vector<::aidl::android::media::audio::common::AudioDevice> mConnectedDevices;
 };
 
-class StreamIn
-    : public StreamCommon<::aidl::android::hardware::audio::common::SinkMetadata, StreamInWorker>,
-      public BnStreamIn {
-    ndk::ScopedAStatus close() override {
-        return StreamCommon<::aidl::android::hardware::audio::common::SinkMetadata,
-                            StreamInWorker>::close();
+class StreamIn : public StreamCommonImpl<::aidl::android::hardware::audio::common::SinkMetadata,
+                                         StreamInWorker>,
+                 public BnStreamIn {
+    ndk::ScopedAStatus getStreamCommon(std::shared_ptr<IStreamCommon>* _aidl_return) override {
+        return StreamCommonImpl<::aidl::android::hardware::audio::common::SinkMetadata,
+                                StreamInWorker>::getStreamCommon(_aidl_return);
     }
     ndk::ScopedAStatus getActiveMicrophones(
             std::vector<MicrophoneDynamicInfo>* _aidl_return) override;
@@ -241,46 +302,71 @@
     ndk::ScopedAStatus setMicrophoneFieldDimension(float in_zoom) override;
     ndk::ScopedAStatus updateMetadata(const ::aidl::android::hardware::audio::common::SinkMetadata&
                                               in_sinkMetadata) override {
-        return StreamCommon<::aidl::android::hardware::audio::common::SinkMetadata,
-                            StreamInWorker>::updateMetadata(in_sinkMetadata);
+        return StreamCommonImpl<::aidl::android::hardware::audio::common::SinkMetadata,
+                                StreamInWorker>::updateMetadata(in_sinkMetadata);
     }
 
   public:
-    StreamIn(const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
-             StreamContext context, const std::vector<MicrophoneInfo>& microphones);
+    static ndk::ScopedAStatus createInstance(
+            const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
+            StreamContext context, const std::vector<MicrophoneInfo>& microphones,
+            std::shared_ptr<StreamIn>* result);
 
   private:
+    friend class ndk::SharedRefBase;
+    StreamIn(const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
+             StreamContext&& context, const std::vector<MicrophoneInfo>& microphones);
+    void createStreamCommon(const std::shared_ptr<StreamIn>& myPtr) {
+        StreamCommonImpl<::aidl::android::hardware::audio::common::SinkMetadata,
+                         StreamInWorker>::createStreamCommon(myPtr);
+    }
+
     const std::map<::aidl::android::media::audio::common::AudioDevice, std::string> mMicrophones;
 };
 
-class StreamOut : public StreamCommon<::aidl::android::hardware::audio::common::SourceMetadata,
-                                      StreamOutWorker>,
+class StreamOut : public StreamCommonImpl<::aidl::android::hardware::audio::common::SourceMetadata,
+                                          StreamOutWorker>,
                   public BnStreamOut {
-    ndk::ScopedAStatus close() override {
-        return StreamCommon<::aidl::android::hardware::audio::common::SourceMetadata,
-                            StreamOutWorker>::close();
+    ndk::ScopedAStatus getStreamCommon(std::shared_ptr<IStreamCommon>* _aidl_return) override {
+        return StreamCommonImpl<::aidl::android::hardware::audio::common::SourceMetadata,
+                                StreamOutWorker>::getStreamCommon(_aidl_return);
     }
     ndk::ScopedAStatus updateMetadata(
             const ::aidl::android::hardware::audio::common::SourceMetadata& in_sourceMetadata)
             override {
-        return StreamCommon<::aidl::android::hardware::audio::common::SourceMetadata,
-                            StreamOutWorker>::updateMetadata(in_sourceMetadata);
+        return StreamCommonImpl<::aidl::android::hardware::audio::common::SourceMetadata,
+                                StreamOutWorker>::updateMetadata(in_sourceMetadata);
     }
 
   public:
-    StreamOut(const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
-              StreamContext context,
-              const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
-                      offloadInfo);
+    static ndk::ScopedAStatus createInstance(
+            const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
+            StreamContext context,
+            const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
+                    offloadInfo,
+            std::shared_ptr<StreamOut>* result);
 
   private:
+    friend class ndk::SharedRefBase;
+    StreamOut(const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
+              StreamContext&& context,
+              const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
+                      offloadInfo);
+    void createStreamCommon(const std::shared_ptr<StreamOut>& myPtr) {
+        StreamCommonImpl<::aidl::android::hardware::audio::common::SourceMetadata,
+                         StreamOutWorker>::createStreamCommon(myPtr);
+    }
+
     std::optional<::aidl::android::media::audio::common::AudioOffloadInfo> mOffloadInfo;
 };
 
 class StreamWrapper {
   public:
-    explicit StreamWrapper(std::shared_ptr<StreamIn> streamIn) : mStream(streamIn) {}
-    explicit StreamWrapper(std::shared_ptr<StreamOut> streamOut) : mStream(streamOut) {}
+    explicit StreamWrapper(const std::shared_ptr<StreamIn>& streamIn)
+        : mStream(streamIn), mStreamBinder(streamIn->asBinder()) {}
+    explicit StreamWrapper(const std::shared_ptr<StreamOut>& streamOut)
+        : mStream(streamOut), mStreamBinder(streamOut->asBinder()) {}
+    ndk::SpAIBinder getBinder() const { return mStreamBinder; }
     bool isStreamOpen() const {
         return std::visit(
                 [](auto&& ws) -> bool {
@@ -301,6 +387,7 @@
 
   private:
     std::variant<std::weak_ptr<StreamIn>, std::weak_ptr<StreamOut>> mStream;
+    ndk::SpAIBinder mStreamBinder;
 };
 
 class Streams {
diff --git a/audio/aidl/default/include/effect-impl/EffectContext.h b/audio/aidl/default/include/effect-impl/EffectContext.h
index 95645d5..1f39db0 100644
--- a/audio/aidl/default/include/effect-impl/EffectContext.h
+++ b/audio/aidl/default/include/effect-impl/EffectContext.h
@@ -72,13 +72,11 @@
 
     float* getWorkBuffer() { return static_cast<float*>(mWorkBuffer.data()); }
 
-    // reset buffer status by abandon all data and status in FMQ
+    // reset buffer status by abandon input data in FMQ
     void resetBuffer() {
         auto buffer = static_cast<float*>(mWorkBuffer.data());
         std::vector<IEffect::Status> status(mStatusMQ->availableToRead());
         mInputMQ->read(buffer, mInputMQ->availableToRead());
-        mOutputMQ->read(buffer, mOutputMQ->availableToRead());
-        mStatusMQ->read(status.data(), mStatusMQ->availableToRead());
     }
 
     void dupeFmq(IEffect::OpenEffectReturn* effectRet) {
diff --git a/audio/aidl/default/include/effectFactory-impl/EffectFactory.h b/audio/aidl/default/include/effectFactory-impl/EffectFactory.h
index 5903276..04bd1bb 100644
--- a/audio/aidl/default/include/effectFactory-impl/EffectFactory.h
+++ b/audio/aidl/default/include/effectFactory-impl/EffectFactory.h
@@ -96,9 +96,8 @@
 
     std::map<aidl::android::media::audio::common::AudioUuid /* implUUID */, DlEntry> mEffectLibMap;
 
-    std::map<std::weak_ptr<IEffect>, aidl::android::media::audio::common::AudioUuid,
-             std::owner_less<>>
-            mEffectUuidMap;
+    typedef std::pair<aidl::android::media::audio::common::AudioUuid, ndk::SpAIBinder> EffectEntry;
+    std::map<std::weak_ptr<IEffect>, EffectEntry, std::owner_less<>> mEffectMap;
 
     ndk::ScopedAStatus destroyEffectImpl(const std::shared_ptr<IEffect>& in_handle);
     void cleanupEffectMap();
diff --git a/audio/aidl/default/main.cpp b/audio/aidl/default/main.cpp
index b11af4e..b66c134 100644
--- a/audio/aidl/default/main.cpp
+++ b/audio/aidl/default/main.cpp
@@ -16,6 +16,7 @@
 
 #include <cstdlib>
 #include <ctime>
+#include <utility>
 
 #include <android-base/logging.h>
 #include <android/binder_ibinder_platform.h>
@@ -44,19 +45,17 @@
     CHECK_EQ(STATUS_OK, status);
 
     // Make modules
-    auto moduleDefault = ndk::SharedRefBase::make<Module>(Module::Type::DEFAULT);
-    const std::string moduleDefaultName = std::string() + Module::descriptor + "/default";
-    AIBinder_setMinSchedulerPolicy(moduleDefault->asBinder().get(), SCHED_NORMAL,
-                                   ANDROID_PRIORITY_AUDIO);
-    status = AServiceManager_addService(moduleDefault->asBinder().get(), moduleDefaultName.c_str());
-    CHECK_EQ(STATUS_OK, status);
-
-    auto moduleRSubmix = ndk::SharedRefBase::make<Module>(Module::Type::R_SUBMIX);
-    const std::string moduleRSubmixName = std::string() + Module::descriptor + "/r_submix";
-    AIBinder_setMinSchedulerPolicy(moduleRSubmix->asBinder().get(), SCHED_NORMAL,
-                                   ANDROID_PRIORITY_AUDIO);
-    status = AServiceManager_addService(moduleRSubmix->asBinder().get(), moduleRSubmixName.c_str());
-    CHECK_EQ(STATUS_OK, status);
+    auto createModule = [](Module::Type type, const std::string& instance) {
+        auto module = ndk::SharedRefBase::make<Module>(type);
+        ndk::SpAIBinder moduleBinder = module->asBinder();
+        const std::string moduleName = std::string(Module::descriptor).append("/").append(instance);
+        AIBinder_setMinSchedulerPolicy(moduleBinder.get(), SCHED_NORMAL, ANDROID_PRIORITY_AUDIO);
+        binder_status_t status = AServiceManager_addService(moduleBinder.get(), moduleName.c_str());
+        CHECK_EQ(STATUS_OK, status);
+        return std::make_pair(module, moduleBinder);
+    };
+    auto modules = {createModule(Module::Type::DEFAULT, "default"),
+                    createModule(Module::Type::R_SUBMIX, "r_submix")};
 
     ABinderProcess_joinThreadPool();
     return EXIT_FAILURE;  // should not reach
diff --git a/audio/aidl/vts/EffectFactoryHelper.h b/audio/aidl/vts/EffectFactoryHelper.h
index b649d9e..0d5c649 100644
--- a/audio/aidl/vts/EffectFactoryHelper.h
+++ b/audio/aidl/vts/EffectFactoryHelper.h
@@ -49,11 +49,11 @@
 
     std::shared_ptr<IFactory> GetFactory() const { return mEffectFactory; }
 
-    static std::vector<std::pair<std::shared_ptr<IFactory>, Descriptor::Identity>>
-    getAllEffectDescriptors(std::string serviceName, std::optional<AudioUuid> type = std::nullopt) {
+    static std::vector<std::pair<std::shared_ptr<IFactory>, Descriptor>> getAllEffectDescriptors(
+            std::string serviceName, std::optional<AudioUuid> type = std::nullopt) {
         AudioHalBinderServiceUtil util;
         auto names = android::getAidlHalInstanceNames(serviceName);
-        std::vector<std::pair<std::shared_ptr<IFactory>, Descriptor::Identity>> result;
+        std::vector<std::pair<std::shared_ptr<IFactory>, Descriptor>> result;
 
         for (const auto& name : names) {
             auto factory = IFactory::fromBinder(util.connectToService(name));
@@ -62,11 +62,10 @@
                     factory->queryEffects(std::nullopt, std::nullopt, std::nullopt, &descs)
                             .isOk()) {
                     for (const auto& desc : descs) {
-                        const auto& id = desc.common.id;
-                        if (type.has_value() && id.type != type.value()) {
+                        if (type.has_value() && desc.common.id.type != type.value()) {
                             continue;
                         }
-                        result.emplace_back(factory, id);
+                        result.emplace_back(factory, desc);
                     }
                 }
             }
diff --git a/audio/aidl/vts/EffectHelper.h b/audio/aidl/vts/EffectHelper.h
index 73a1f49..7222d4f 100644
--- a/audio/aidl/vts/EffectHelper.h
+++ b/audio/aidl/vts/EffectHelper.h
@@ -58,26 +58,34 @@
 class EffectHelper {
   public:
     static void create(std::shared_ptr<IFactory> factory, std::shared_ptr<IEffect>& effect,
-                       Descriptor::Identity id, binder_status_t status = EX_NONE) {
+                       Descriptor& desc, binder_status_t status = EX_NONE) {
         ASSERT_NE(factory, nullptr);
-        EXPECT_STATUS(status, factory->createEffect(id.uuid, &effect));
+        auto& id = desc.common.id;
+        ASSERT_STATUS(status, factory->createEffect(id.uuid, &effect));
         if (status == EX_NONE) {
             ASSERT_NE(effect, nullptr) << id.uuid.toString();
         }
     }
 
+    static void destroyIgnoreRet(std::shared_ptr<IFactory> factory,
+                                 std::shared_ptr<IEffect> effect) {
+        if (factory && effect) {
+            factory->destroyEffect(effect);
+        }
+    }
+
     static void destroy(std::shared_ptr<IFactory> factory, std::shared_ptr<IEffect> effect,
                         binder_status_t status = EX_NONE) {
         ASSERT_NE(factory, nullptr);
         ASSERT_NE(effect, nullptr);
-        EXPECT_STATUS(status, factory->destroyEffect(effect));
+        ASSERT_STATUS(status, factory->destroyEffect(effect));
     }
 
     static void open(std::shared_ptr<IEffect> effect, const Parameter::Common& common,
                      const std::optional<Parameter::Specific>& specific,
                      IEffect::OpenEffectReturn* ret, binder_status_t status = EX_NONE) {
         ASSERT_NE(effect, nullptr);
-        EXPECT_STATUS(status, effect->open(common, specific, ret));
+        ASSERT_STATUS(status, effect->open(common, specific, ret));
     }
 
     static void open(std::shared_ptr<IEffect> effect, int session = 0,
@@ -85,30 +93,40 @@
         ASSERT_NE(effect, nullptr);
         Parameter::Common common = EffectHelper::createParamCommon(session);
         IEffect::OpenEffectReturn ret;
-        open(effect, common, std::nullopt /* specific */, &ret, status);
+        ASSERT_NO_FATAL_FAILURE(open(effect, common, std::nullopt /* specific */, &ret, status));
     }
 
+    static void closeIgnoreRet(std::shared_ptr<IEffect> effect) {
+        if (effect) {
+            effect->close();
+        }
+    }
     static void close(std::shared_ptr<IEffect> effect, binder_status_t status = EX_NONE) {
         if (effect) {
-            EXPECT_STATUS(status, effect->close());
+            ASSERT_STATUS(status, effect->close());
         }
     }
     static void getDescriptor(std::shared_ptr<IEffect> effect, Descriptor& desc,
                               binder_status_t status = EX_NONE) {
         ASSERT_NE(effect, nullptr);
-        EXPECT_STATUS(status, effect->getDescriptor(&desc));
+        ASSERT_STATUS(status, effect->getDescriptor(&desc));
     }
     static void expectState(std::shared_ptr<IEffect> effect, State expectState,
                             binder_status_t status = EX_NONE) {
         ASSERT_NE(effect, nullptr);
         State state;
-        EXPECT_STATUS(status, effect->getState(&state));
-        EXPECT_EQ(expectState, state);
+        ASSERT_STATUS(status, effect->getState(&state));
+        ASSERT_EQ(expectState, state);
+    }
+    static void commandIgnoreRet(std::shared_ptr<IEffect> effect, CommandId command) {
+        if (effect) {
+            effect->command(command);
+        }
     }
     static void command(std::shared_ptr<IEffect> effect, CommandId command,
                         binder_status_t status = EX_NONE) {
         ASSERT_NE(effect, nullptr);
-        EXPECT_STATUS(status, effect->command(command));
+        ASSERT_STATUS(status, effect->command(command));
     }
     static void allocateInputData(const Parameter::Common common, std::unique_ptr<DataMQ>& mq,
                                   std::vector<float>& buffer) {
@@ -116,29 +134,29 @@
         auto frameSize = android::hardware::audio::common::getFrameSizeInBytes(
                 common.input.base.format, common.input.base.channelMask);
         const size_t floatsToWrite = mq->availableToWrite();
-        EXPECT_NE(0UL, floatsToWrite);
-        EXPECT_EQ(frameSize * common.input.frameCount, floatsToWrite * sizeof(float));
+        ASSERT_NE(0UL, floatsToWrite);
+        ASSERT_EQ(frameSize * common.input.frameCount, floatsToWrite * sizeof(float));
         buffer.resize(floatsToWrite);
         std::fill(buffer.begin(), buffer.end(), 0x5a);
     }
     static void writeToFmq(std::unique_ptr<DataMQ>& mq, const std::vector<float>& buffer) {
         const size_t available = mq->availableToWrite();
-        EXPECT_NE(0Ul, available);
+        ASSERT_NE(0Ul, available);
         auto bufferFloats = buffer.size();
         auto floatsToWrite = std::min(available, bufferFloats);
-        EXPECT_TRUE(mq->write(buffer.data(), floatsToWrite));
+        ASSERT_TRUE(mq->write(buffer.data(), floatsToWrite));
     }
     static void readFromFmq(std::unique_ptr<StatusMQ>& statusMq, size_t statusNum,
                             std::unique_ptr<DataMQ>& dataMq, size_t expectFloats,
                             std::vector<float>& buffer) {
         IEffect::Status status{};
-        EXPECT_TRUE(statusMq->readBlocking(&status, statusNum));
-        EXPECT_EQ(STATUS_OK, status.status);
+        ASSERT_TRUE(statusMq->readBlocking(&status, statusNum));
+        ASSERT_EQ(STATUS_OK, status.status);
         if (statusNum != 0) {
-            EXPECT_EQ(expectFloats, (unsigned)status.fmqProduced);
-            EXPECT_EQ(expectFloats, dataMq->availableToRead());
+            ASSERT_EQ(expectFloats, (unsigned)status.fmqProduced);
+            ASSERT_EQ(expectFloats, dataMq->availableToRead());
             if (expectFloats != 0) {
-                EXPECT_TRUE(dataMq->read(buffer.data(), expectFloats));
+                ASSERT_TRUE(dataMq->read(buffer.data(), expectFloats));
             }
         }
     }
diff --git a/audio/aidl/vts/TestUtils.h b/audio/aidl/vts/TestUtils.h
index 5e4d56a..4c1d42c 100644
--- a/audio/aidl/vts/TestUtils.h
+++ b/audio/aidl/vts/TestUtils.h
@@ -16,6 +16,8 @@
 
 #pragma once
 
+#include <algorithm>
+#include <initializer_list>
 #include <iostream>
 
 #include <android/binder_auto_utils.h>
@@ -45,6 +47,19 @@
            << "\n  but is has completed with: " << status;
 }
 
+template <typename T>
+inline ::testing::AssertionResult assertResult(const char* exp_expr, const char* act_expr,
+                                               const std::initializer_list<T>& expected,
+                                               const ::ndk::ScopedAStatus& status) {
+    if (std::find(expected.begin(), expected.end(), status.getExceptionCode()) != expected.end()) {
+        return ::testing::AssertionSuccess();
+    }
+    return ::testing::AssertionFailure() << "Expected the transaction \'" << act_expr
+                                         << "\' to complete with one of: " << exp_expr
+                                         << "\n  which is: " << ::testing::PrintToString(expected)
+                                         << "\n  but is has completed with: " << status;
+}
+
 }  // namespace detail
 
 }  // namespace android::hardware::audio::common::testing
diff --git a/audio/aidl/vts/VtsHalAudioCoreConfigTargetTest.cpp b/audio/aidl/vts/VtsHalAudioCoreConfigTargetTest.cpp
index bf73648..e7f5817 100644
--- a/audio/aidl/vts/VtsHalAudioCoreConfigTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalAudioCoreConfigTargetTest.cpp
@@ -10,6 +10,8 @@
 #include <aidl/Gtest.h>
 #include <aidl/Vintf.h>
 #include <aidl/android/hardware/audio/core/IConfig.h>
+#include <aidl/android/media/audio/common/AudioFlag.h>
+#include <aidl/android/media/audio/common/AudioProductStrategyType.h>
 
 #include "AudioHalBinderServiceUtil.h"
 #include "TestUtils.h"
diff --git a/audio/aidl/vts/VtsHalAudioCoreModuleTargetTest.cpp b/audio/aidl/vts/VtsHalAudioCoreModuleTargetTest.cpp
index 99771e6..d21b118 100644
--- a/audio/aidl/vts/VtsHalAudioCoreModuleTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalAudioCoreModuleTargetTest.cpp
@@ -36,6 +36,7 @@
 #include <aidl/Vintf.h>
 #include <aidl/android/hardware/audio/core/BnStreamCallback.h>
 #include <aidl/android/hardware/audio/core/IModule.h>
+#include <aidl/android/hardware/audio/core/ISoundDose.h>
 #include <aidl/android/hardware/audio/core/ITelephony.h>
 #include <aidl/android/media/audio/common/AudioIoFlags.h>
 #include <aidl/android/media/audio/common/AudioOutputFlags.h>
@@ -56,6 +57,8 @@
 using aidl::android::hardware::audio::core::AudioPatch;
 using aidl::android::hardware::audio::core::AudioRoute;
 using aidl::android::hardware::audio::core::IModule;
+using aidl::android::hardware::audio::core::ISoundDose;
+using aidl::android::hardware::audio::core::IStreamCommon;
 using aidl::android::hardware::audio::core::IStreamIn;
 using aidl::android::hardware::audio::core::IStreamOut;
 using aidl::android::hardware::audio::core::ITelephony;
@@ -63,6 +66,7 @@
 using aidl::android::hardware::audio::core::MicrophoneInfo;
 using aidl::android::hardware::audio::core::ModuleDebug;
 using aidl::android::hardware::audio::core::StreamDescriptor;
+using aidl::android::hardware::audio::core::VendorParameter;
 using aidl::android::hardware::common::fmq::SynchronizedReadWrite;
 using aidl::android::media::audio::common::AudioContentType;
 using aidl::android::media::audio::common::AudioDevice;
@@ -209,6 +213,56 @@
     EXPECT_IS_OK((inst->*setter)(initialValue)) << "Failed to restore the initial value";
 }
 
+template <class Instance>
+void TestGetVendorParameters(Instance* inst, bool* isSupported) {
+    static const std::vector<std::vector<std::string>> kIdsLists = {{}, {"zero"}, {"one", "two"}};
+    static const auto kStatuses = {EX_ILLEGAL_ARGUMENT, EX_ILLEGAL_STATE, EX_UNSUPPORTED_OPERATION};
+    for (const auto& ids : kIdsLists) {
+        std::vector<VendorParameter> params;
+        if (ndk::ScopedAStatus status = inst->getVendorParameters(ids, &params); status.isOk()) {
+            EXPECT_EQ(ids.size(), params.size()) << "Size of the returned parameters list must "
+                                                 << "match the size of the provided ids list";
+            for (const auto& param : params) {
+                EXPECT_NE(ids.end(), std::find(ids.begin(), ids.end(), param.id))
+                        << "Returned parameter id \"" << param.id << "\" is unexpected";
+            }
+            for (const auto& id : ids) {
+                EXPECT_NE(params.end(),
+                          std::find_if(params.begin(), params.end(),
+                                       [&](const auto& param) { return param.id == id; }))
+                        << "Requested parameter with id \"" << id << "\" was not returned";
+            }
+        } else {
+            EXPECT_STATUS(kStatuses, status);
+            if (status.getExceptionCode() == EX_UNSUPPORTED_OPERATION) {
+                *isSupported = false;
+                return;
+            }
+        }
+    }
+    *isSupported = true;
+}
+
+template <class Instance>
+void TestSetVendorParameters(Instance* inst, bool* isSupported) {
+    static const auto kStatuses = {EX_NONE, EX_ILLEGAL_ARGUMENT, EX_ILLEGAL_STATE,
+                                   EX_UNSUPPORTED_OPERATION};
+    static const std::vector<std::vector<VendorParameter>> kParamsLists = {
+            {}, {VendorParameter{"zero"}}, {VendorParameter{"one"}, VendorParameter{"two"}}};
+    for (const auto& params : kParamsLists) {
+        ndk::ScopedAStatus status = inst->setVendorParameters(params, false);
+        if (status.getExceptionCode() == EX_UNSUPPORTED_OPERATION) {
+            *isSupported = false;
+            return;
+        }
+        EXPECT_STATUS(kStatuses, status)
+                << ::android::internal::ToString(params) << ", async: false";
+        EXPECT_STATUS(kStatuses, inst->setVendorParameters(params, true))
+                << ::android::internal::ToString(params) << ", async: true";
+    }
+    *isSupported = true;
+}
+
 // Can be used as a base for any test here, does not depend on the fixture GTest parameters.
 class AudioCoreModuleBase {
   public:
@@ -835,6 +889,13 @@
 template <typename Stream>
 class WithStream {
   public:
+    static ndk::ScopedAStatus callClose(std::shared_ptr<Stream> stream) {
+        std::shared_ptr<IStreamCommon> common;
+        ndk::ScopedAStatus status = stream->getStreamCommon(&common);
+        if (!status.isOk()) return status;
+        return common->close();
+    }
+
     WithStream() {}
     explicit WithStream(const AudioPortConfig& portConfig) : mPortConfig(portConfig) {}
     WithStream(const WithStream&) = delete;
@@ -842,7 +903,7 @@
     ~WithStream() {
         if (mStream != nullptr) {
             mContext.reset();
-            EXPECT_IS_OK(mStream->close()) << "port config id " << getPortId();
+            EXPECT_IS_OK(callClose(mStream)) << "port config id " << getPortId();
         }
     }
     void SetUpPortConfig(IModule* module) { ASSERT_NO_FATAL_FAILURE(mPortConfig.SetUp(module)); }
@@ -1626,6 +1687,40 @@
     EXPECT_IS_OK(module->updateScreenState(true));
 }
 
+TEST_P(AudioCoreModule, GenerateHwAvSyncId) {
+    const auto kStatuses = {EX_NONE, EX_ILLEGAL_STATE};
+    int32_t id1;
+    ndk::ScopedAStatus status = module->generateHwAvSyncId(&id1);
+    if (status.getExceptionCode() == EX_UNSUPPORTED_OPERATION) {
+        GTEST_SKIP() << "HW AV Sync is not supported";
+    }
+    EXPECT_STATUS(kStatuses, status);
+    if (status.isOk()) {
+        int32_t id2;
+        ASSERT_IS_OK(module->generateHwAvSyncId(&id2));
+        EXPECT_NE(id1, id2) << "HW AV Sync IDs must be unique";
+    }
+}
+
+TEST_P(AudioCoreModule, GetVendorParameters) {
+    bool isGetterSupported = false;
+    EXPECT_NO_FATAL_FAILURE(TestGetVendorParameters(module.get(), &isGetterSupported));
+    ndk::ScopedAStatus status = module->setVendorParameters({}, false);
+    EXPECT_EQ(isGetterSupported, status.getExceptionCode() != EX_UNSUPPORTED_OPERATION)
+            << "Support for getting and setting of vendor parameters must be consistent";
+    if (!isGetterSupported) {
+        GTEST_SKIP() << "Vendor parameters are not supported";
+    }
+}
+
+TEST_P(AudioCoreModule, SetVendorParameters) {
+    bool isSupported = false;
+    EXPECT_NO_FATAL_FAILURE(TestSetVendorParameters(module.get(), &isSupported));
+    if (!isSupported) {
+        GTEST_SKIP() << "Vendor parameters are not supported";
+    }
+}
+
 class AudioCoreTelephony : public AudioCoreModuleBase, public testing::TestWithParam<std::string> {
   public:
     void SetUp() override {
@@ -1731,6 +1826,23 @@
         ASSERT_NO_FATAL_FAILURE(SetUpModuleConfig());
     }
 
+    void GetStreamCommon() {
+        const auto portConfig = moduleConfig->getSingleConfigForMixPort(IOTraits<Stream>::is_input);
+        if (!portConfig.has_value()) {
+            GTEST_SKIP() << "No mix port for attached devices";
+        }
+        WithStream<Stream> stream(portConfig.value());
+        ASSERT_NO_FATAL_FAILURE(stream.SetUp(module.get(), kDefaultBufferSizeFrames));
+        std::shared_ptr<IStreamCommon> streamCommon1;
+        EXPECT_IS_OK(stream.get()->getStreamCommon(&streamCommon1));
+        std::shared_ptr<IStreamCommon> streamCommon2;
+        EXPECT_IS_OK(stream.get()->getStreamCommon(&streamCommon2));
+        ASSERT_NE(nullptr, streamCommon1);
+        ASSERT_NE(nullptr, streamCommon2);
+        EXPECT_EQ(streamCommon1->asBinder(), streamCommon2->asBinder())
+                << "getStreamCommon must return the same interface instance across invocations";
+    }
+
     void CloseTwice() {
         const auto portConfig = moduleConfig->getSingleConfigForMixPort(IOTraits<Stream>::is_input);
         if (!portConfig.has_value()) {
@@ -1742,7 +1854,8 @@
             ASSERT_NO_FATAL_FAILURE(stream.SetUp(module.get(), kDefaultBufferSizeFrames));
             heldStream = stream.getSharedPointer();
         }
-        EXPECT_STATUS(EX_ILLEGAL_STATE, heldStream->close()) << "when closing the stream twice";
+        EXPECT_STATUS(EX_ILLEGAL_STATE, WithStream<Stream>::callClose(heldStream))
+                << "when closing the stream twice";
     }
 
     void OpenAllConfigs() {
@@ -1847,6 +1960,65 @@
         EXPECT_NO_FATAL_FAILURE(SendInvalidCommandImpl(portConfig.value()));
     }
 
+    void UpdateHwAvSyncId() {
+        const auto portConfig = moduleConfig->getSingleConfigForMixPort(IOTraits<Stream>::is_input);
+        if (!portConfig.has_value()) {
+            GTEST_SKIP() << "No mix port for attached devices";
+        }
+        WithStream<Stream> stream(portConfig.value());
+        ASSERT_NO_FATAL_FAILURE(stream.SetUp(module.get(), kDefaultBufferSizeFrames));
+        std::shared_ptr<IStreamCommon> streamCommon;
+        ASSERT_IS_OK(stream.get()->getStreamCommon(&streamCommon));
+        ASSERT_NE(nullptr, streamCommon);
+        const auto kStatuses = {EX_NONE, EX_ILLEGAL_ARGUMENT, EX_ILLEGAL_STATE};
+        for (const auto id : {-100, -1, 0, 1, 100}) {
+            ndk::ScopedAStatus status = streamCommon->updateHwAvSyncId(id);
+            if (status.getExceptionCode() == EX_UNSUPPORTED_OPERATION) {
+                GTEST_SKIP() << "HW AV Sync is not supported";
+            }
+            EXPECT_STATUS(kStatuses, status) << "id: " << id;
+        }
+    }
+
+    void GetVendorParameters() {
+        const auto portConfig = moduleConfig->getSingleConfigForMixPort(IOTraits<Stream>::is_input);
+        if (!portConfig.has_value()) {
+            GTEST_SKIP() << "No mix port for attached devices";
+        }
+        WithStream<Stream> stream(portConfig.value());
+        ASSERT_NO_FATAL_FAILURE(stream.SetUp(module.get(), kDefaultBufferSizeFrames));
+        std::shared_ptr<IStreamCommon> streamCommon;
+        ASSERT_IS_OK(stream.get()->getStreamCommon(&streamCommon));
+        ASSERT_NE(nullptr, streamCommon);
+
+        bool isGetterSupported = false;
+        EXPECT_NO_FATAL_FAILURE(TestGetVendorParameters(module.get(), &isGetterSupported));
+        ndk::ScopedAStatus status = module->setVendorParameters({}, false);
+        EXPECT_EQ(isGetterSupported, status.getExceptionCode() != EX_UNSUPPORTED_OPERATION)
+                << "Support for getting and setting of vendor parameters must be consistent";
+        if (!isGetterSupported) {
+            GTEST_SKIP() << "Vendor parameters are not supported";
+        }
+    }
+
+    void SetVendorParameters() {
+        const auto portConfig = moduleConfig->getSingleConfigForMixPort(IOTraits<Stream>::is_input);
+        if (!portConfig.has_value()) {
+            GTEST_SKIP() << "No mix port for attached devices";
+        }
+        WithStream<Stream> stream(portConfig.value());
+        ASSERT_NO_FATAL_FAILURE(stream.SetUp(module.get(), kDefaultBufferSizeFrames));
+        std::shared_ptr<IStreamCommon> streamCommon;
+        ASSERT_IS_OK(stream.get()->getStreamCommon(&streamCommon));
+        ASSERT_NE(nullptr, streamCommon);
+
+        bool isSupported = false;
+        EXPECT_NO_FATAL_FAILURE(TestSetVendorParameters(module.get(), &isSupported));
+        if (!isSupported) {
+            GTEST_SKIP() << "Vendor parameters are not supported";
+        }
+    }
+
     void OpenTwiceSamePortConfigImpl(const AudioPortConfig& portConfig) {
         WithStream<Stream> stream1(portConfig);
         ASSERT_NO_FATAL_FAILURE(stream1.SetUp(module.get(), kDefaultBufferSizeFrames));
@@ -1912,6 +2084,7 @@
     }
 
 TEST_IN_AND_OUT_STREAM(CloseTwice);
+TEST_IN_AND_OUT_STREAM(GetStreamCommon);
 TEST_IN_AND_OUT_STREAM(OpenAllConfigs);
 TEST_IN_AND_OUT_STREAM(OpenInvalidBufferSize);
 TEST_IN_AND_OUT_STREAM(OpenInvalidDirection);
@@ -1919,6 +2092,9 @@
 TEST_IN_AND_OUT_STREAM(OpenTwiceSamePortConfig);
 TEST_IN_AND_OUT_STREAM(ResetPortConfigWithOpenStream);
 TEST_IN_AND_OUT_STREAM(SendInvalidCommand);
+TEST_IN_AND_OUT_STREAM(UpdateHwAvSyncId);
+TEST_IN_AND_OUT_STREAM(GetVendorParameters);
+TEST_IN_AND_OUT_STREAM(SetVendorParameters);
 
 namespace aidl::android::hardware::audio::core {
 std::ostream& operator<<(std::ostream& os, const IStreamIn::MicrophoneDirection& md) {
@@ -2468,6 +2644,92 @@
     }
 }
 
+class AudioCoreSoundDose : public AudioCoreModuleBase, public testing::TestWithParam<std::string> {
+  public:
+    class NoOpHalSoundDoseCallback : public ISoundDose::BnHalSoundDoseCallback {
+      public:
+        ndk::ScopedAStatus onMomentaryExposureWarning(float in_currentDbA,
+                                                      const AudioDevice& in_audioDevice) override;
+        ndk::ScopedAStatus onNewMelValues(
+                const ISoundDose::IHalSoundDoseCallback::MelRecord& in_melRecord,
+                const AudioDevice& in_audioDevice) override;
+    };
+
+    void SetUp() override {
+        ASSERT_NO_FATAL_FAILURE(SetUpImpl(GetParam()));
+        ASSERT_IS_OK(module->getSoundDose(&soundDose));
+        callback = ndk::SharedRefBase::make<NoOpHalSoundDoseCallback>();
+    }
+
+    void TearDown() override { ASSERT_NO_FATAL_FAILURE(TearDownImpl()); }
+
+    std::shared_ptr<ISoundDose> soundDose;
+    std::shared_ptr<ISoundDose::IHalSoundDoseCallback> callback;
+};
+
+ndk::ScopedAStatus AudioCoreSoundDose::NoOpHalSoundDoseCallback::onMomentaryExposureWarning(
+        float in_currentDbA, const AudioDevice& in_audioDevice) {
+    // Do nothing
+    (void)in_currentDbA;
+    (void)in_audioDevice;
+    LOG(INFO) << "NoOpHalSoundDoseCallback::onMomentaryExposureWarning called";
+
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus AudioCoreSoundDose::NoOpHalSoundDoseCallback::onNewMelValues(
+        const ISoundDose::IHalSoundDoseCallback::MelRecord& in_melRecord,
+        const AudioDevice& in_audioDevice) {
+    // Do nothing
+    (void)in_melRecord;
+    (void)in_audioDevice;
+    LOG(INFO) << "NoOpHalSoundDoseCallback::onNewMelValues called";
+
+    return ndk::ScopedAStatus::ok();
+}
+
+TEST_P(AudioCoreSoundDose, GetSetOutputRs2) {
+    if (soundDose == nullptr) {
+        GTEST_SKIP() << "SoundDose is not supported";
+    }
+
+    bool isSupported = false;
+    EXPECT_NO_FATAL_FAILURE(TestAccessors<float>(soundDose.get(), &ISoundDose::getOutputRs2,
+                                                 &ISoundDose::setOutputRs2,
+                                                 /*validValues=*/{80.f, 90.f, 100.f},
+                                                 /*invalidValues=*/{79.f, 101.f}, &isSupported));
+    EXPECT_TRUE(isSupported) << "Getting/Setting RS2 must be supported";
+}
+
+TEST_P(AudioCoreSoundDose, CheckDefaultRs2Value) {
+    if (soundDose == nullptr) {
+        GTEST_SKIP() << "SoundDose is not supported";
+    }
+
+    float rs2Value;
+    ASSERT_IS_OK(soundDose->getOutputRs2(&rs2Value));
+    EXPECT_EQ(rs2Value, ISoundDose::DEFAULT_MAX_RS2);
+}
+
+TEST_P(AudioCoreSoundDose, RegisterSoundDoseCallbackTwiceThrowsException) {
+    if (soundDose == nullptr) {
+        GTEST_SKIP() << "SoundDose is not supported";
+    }
+
+    ASSERT_IS_OK(soundDose->registerSoundDoseCallback(callback));
+    EXPECT_STATUS(EX_ILLEGAL_STATE, soundDose->registerSoundDoseCallback(callback))
+            << "Registering sound dose callback twice should throw EX_ILLEGAL_STATE";
+}
+
+TEST_P(AudioCoreSoundDose, RegisterSoundDoseNullCallbackThrowsException) {
+    if (soundDose == nullptr) {
+        GTEST_SKIP() << "SoundDose is not supported";
+    }
+
+    EXPECT_STATUS(EX_ILLEGAL_ARGUMENT, soundDose->registerSoundDoseCallback(nullptr))
+            << "Registering nullptr sound dose callback should throw EX_ILLEGAL_ARGUMENT";
+}
+
 INSTANTIATE_TEST_SUITE_P(AudioCoreModuleTest, AudioCoreModule,
                          testing::ValuesIn(android::getAidlHalInstanceNames(IModule::descriptor)),
                          android::PrintInstanceNameToString);
@@ -2484,6 +2746,10 @@
                          testing::ValuesIn(android::getAidlHalInstanceNames(IModule::descriptor)),
                          android::PrintInstanceNameToString);
 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(AudioStreamOut);
+INSTANTIATE_TEST_SUITE_P(AudioCoreSoundDoseTest, AudioCoreSoundDose,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(IModule::descriptor)),
+                         android::PrintInstanceNameToString);
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(AudioCoreSoundDose);
 
 // This is the value used in test sequences for which the test needs to ensure
 // that the HAL stays in a transient state long enough to receive the next command.
diff --git a/audio/aidl/vts/VtsHalAudioEffectTargetTest.cpp b/audio/aidl/vts/VtsHalAudioEffectTargetTest.cpp
index 4f14bf0..8938618 100644
--- a/audio/aidl/vts/VtsHalAudioEffectTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalAudioEffectTargetTest.cpp
@@ -49,18 +49,30 @@
 using aidl::android::hardware::audio::effect::State;
 
 enum ParamName { PARAM_INSTANCE_NAME };
-using EffectTestParam = std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor::Identity>>;
+using EffectTestParam = std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor>>;
 
 class AudioEffectTest : public testing::TestWithParam<EffectTestParam>, public EffectHelper {
   public:
-    AudioEffectTest() { std::tie(mFactory, mIdentity) = std::get<PARAM_INSTANCE_NAME>(GetParam()); }
+    AudioEffectTest() {
+        std::tie(mFactory, mDescriptor) = std::get<PARAM_INSTANCE_NAME>(GetParam());
+    }
 
     void SetUp() override {}
-    void TearDown() override {}
+
+    void TearDown() override {
+        // Do the cleanup for every test case
+        if (mEffect) {
+            ASSERT_NO_FATAL_FAILURE(commandIgnoreRet(mEffect, CommandId::STOP));
+            ASSERT_NO_FATAL_FAILURE(closeIgnoreRet(mEffect));
+            ASSERT_NO_FATAL_FAILURE(destroyIgnoreRet(mFactory, mEffect));
+            mEffect.reset();
+        }
+    }
 
     static const long kInputFrameCount = 0x100, kOutputFrameCount = 0x100;
     std::shared_ptr<IFactory> mFactory;
-    Descriptor::Identity mIdentity;
+    std::shared_ptr<IEffect> mEffect;
+    Descriptor mDescriptor;
 };
 
 TEST_P(AudioEffectTest, SetupAndTearDown) {
@@ -68,30 +80,27 @@
 }
 
 TEST_P(AudioEffectTest, CreateAndDestroy) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 TEST_P(AudioEffectTest, OpenAndClose) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 TEST_P(AudioEffectTest, CloseUnopenedEffect) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 TEST_P(AudioEffectTest, DoubleOpenAndClose) {
     std::shared_ptr<IEffect> effect1, effect2;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect1, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect2, mIdentity));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect1, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect2, mDescriptor));
     ASSERT_NO_FATAL_FAILURE(open(effect1));
     ASSERT_NO_FATAL_FAILURE(open(effect2, 1 /* session */));
     ASSERT_NO_FATAL_FAILURE(close(effect1));
@@ -102,9 +111,9 @@
 
 TEST_P(AudioEffectTest, TripleOpenAndClose) {
     std::shared_ptr<IEffect> effect1, effect2, effect3;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect1, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect2, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect3, mIdentity));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect1, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect2, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect3, mDescriptor));
     ASSERT_NO_FATAL_FAILURE(open(effect1));
     ASSERT_NO_FATAL_FAILURE(open(effect2, 1 /* session */));
     ASSERT_NO_FATAL_FAILURE(open(effect3, 2 /* session */));
@@ -117,513 +126,505 @@
 }
 
 TEST_P(AudioEffectTest, GetDescritorBeforeOpen) {
-    std::shared_ptr<IEffect> effect;
     Descriptor desc;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(getDescriptor(effect, desc));
-    EXPECT_EQ(mIdentity.toString(), desc.common.id.toString());
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(getDescriptor(mEffect, desc));
+    EXPECT_EQ(mDescriptor.common, desc.common);
+    // Effect implementation Must fill in implementor and name
     EXPECT_NE("", desc.common.name);
     EXPECT_NE("", desc.common.implementor);
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 TEST_P(AudioEffectTest, GetDescritorAfterOpen) {
-    std::shared_ptr<IEffect> effect;
     Descriptor beforeOpen, afterOpen, afterClose;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(getDescriptor(effect, beforeOpen));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(getDescriptor(effect, afterOpen));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(getDescriptor(mEffect, beforeOpen));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(getDescriptor(mEffect, afterOpen));
     EXPECT_EQ(beforeOpen.toString(), afterOpen.toString()) << "\n"
                                                            << beforeOpen.toString() << "\n"
                                                            << afterOpen.toString();
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(getDescriptor(effect, afterClose));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(getDescriptor(mEffect, afterClose));
     EXPECT_EQ(beforeOpen.toString(), afterClose.toString()) << "\n"
                                                             << beforeOpen.toString() << "\n"
                                                             << afterClose.toString();
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 TEST_P(AudioEffectTest, DescriptorExistAndUnique) {
-    std::shared_ptr<IEffect> effect;
     Descriptor desc;
 
     auto descList = EffectFactoryHelper::getAllEffectDescriptors(IFactory::descriptor);
     std::set<Descriptor::Identity> idSet;
     for (const auto& it : descList) {
-        auto& id = it.second;
+        auto& id = it.second.common.id;
         EXPECT_EQ(0ul, idSet.count(id));
         idSet.insert(id);
     }
 
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(getDescriptor(effect, desc));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(getDescriptor(mEffect, desc));
     EXPECT_EQ(1ul, idSet.count(desc.common.id));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 /// State testing.
 // An effect instance is in INIT state by default after it was created.
 TEST_P(AudioEffectTest, InitStateAfterCreation) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::INIT));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::INIT));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // An effect instance transfer to IDLE state after IEffect.ASSERT_NO_FATAL_FAILURE(open().
 TEST_P(AudioEffectTest, IdleStateAfterOpen) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // An effect instance is in PROCESSING state after it receive an START command.
 TEST_P(AudioEffectTest, ProcessingStateAfterStart) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::INIT));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::INIT));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // An effect instance transfer to IDLE state after Command.Id.STOP in PROCESSING state.
 TEST_P(AudioEffectTest, IdleStateAfterStop) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // An effect instance transfer to IDLE state after Command.Id.RESET in PROCESSING state.
 TEST_P(AudioEffectTest, IdleStateAfterReset) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::RESET));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::RESET));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // An effect instance transfer to INIT after IEffect.ASSERT_NO_FATAL_FAILURE(close().
 TEST_P(AudioEffectTest, InitStateAfterClose) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::INIT));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::INIT));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // An effect instance shouldn't accept any command before open.
 TEST_P(AudioEffectTest, NoCommandAcceptedBeforeOpen) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START, EX_ILLEGAL_STATE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP, EX_ILLEGAL_STATE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::RESET, EX_ILLEGAL_STATE));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START, EX_ILLEGAL_STATE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP, EX_ILLEGAL_STATE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::RESET, EX_ILLEGAL_STATE));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // No-op when receive STOP command in IDLE state.
 TEST_P(AudioEffectTest, StopCommandInIdleStateNoOp) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // No-op when receive RESET command in IDLE state.
 TEST_P(AudioEffectTest, ResetCommandInIdleStateNoOp) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::RESET));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::RESET));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Repeat START and STOP command.
 TEST_P(AudioEffectTest, RepeatStartAndStop) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Repeat START and RESET command.
 TEST_P(AudioEffectTest, RepeatStartAndReset) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::RESET));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::RESET));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::RESET));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::RESET));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Try to close an effect instance at PROCESSING state.
 TEST_P(AudioEffectTest, CloseProcessingStateEffects) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
 
-    ASSERT_NO_FATAL_FAILURE(close(effect, EX_ILLEGAL_STATE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect, EX_ILLEGAL_STATE));
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Expect EX_ILLEGAL_STATE if the effect instance is not in a proper state to be destroyed.
 TEST_P(AudioEffectTest, DestroyOpenEffects) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect, EX_ILLEGAL_STATE));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect, EX_ILLEGAL_STATE));
+
+    // cleanup
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Expect EX_ILLEGAL_STATE if the effect instance is not in a proper state to be destroyed.
 TEST_P(AudioEffectTest, DestroyProcessingEffects) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
 
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect, EX_ILLEGAL_STATE));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect, EX_ILLEGAL_STATE));
+
+    // cleanup
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 TEST_P(AudioEffectTest, NormalSequenceStates) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::INIT));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::RESET));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::INIT));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::RESET));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 /// Parameter testing.
 // Verify parameters pass in open can be successfully get.
 TEST_P(AudioEffectTest, VerifyCommonParametersAfterOpen) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
 
     Parameter::Common common = EffectHelper::createParamCommon();
     IEffect::OpenEffectReturn ret;
-    ASSERT_NO_FATAL_FAILURE(open(effect, common, std::nullopt /* specific */, &ret, EX_NONE));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect, common, std::nullopt /* specific */, &ret, EX_NONE));
 
     Parameter get = Parameter(), expect = Parameter();
     expect.set<Parameter::common>(common);
     Parameter::Id id;
     id.set<Parameter::Id::commonTag>(Parameter::common);
-    EXPECT_IS_OK(effect->getParameter(id, &get));
+    EXPECT_IS_OK(mEffect->getParameter(id, &get));
     EXPECT_EQ(expect, get) << expect.toString() << " vs " << get.toString();
 
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Verify parameters pass in set can be successfully get.
 TEST_P(AudioEffectTest, SetAndGetCommonParameter) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */);
     Parameter get = Parameter(), set = Parameter();
     set.set<Parameter::common>(common);
-    EXPECT_IS_OK(effect->setParameter(set));
+    EXPECT_IS_OK(mEffect->setParameter(set));
 
     Parameter::Id id;
     id.set<Parameter::Id::commonTag>(Parameter::common);
-    EXPECT_IS_OK(effect->getParameter(id, &get));
+    EXPECT_IS_OK(mEffect->getParameter(id, &get));
     EXPECT_EQ(set, get) << set.toString() << " vs " << get.toString();
 
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Verify parameters set and get in PROCESSING state.
 TEST_P(AudioEffectTest, SetAndGetParameterInProcessing) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */);
     Parameter get = Parameter(), set = Parameter();
     set.set<Parameter::common>(common);
-    EXPECT_IS_OK(effect->setParameter(set));
+    EXPECT_IS_OK(mEffect->setParameter(set));
 
     Parameter::Id id;
     id.set<Parameter::Id::commonTag>(Parameter::common);
-    EXPECT_IS_OK(effect->getParameter(id, &get));
+    EXPECT_IS_OK(mEffect->getParameter(id, &get));
     EXPECT_EQ(set, get) << set.toString() << " vs " << get.toString();
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Verify parameters set and get in IDLE state.
 TEST_P(AudioEffectTest, SetAndGetParameterInIdle) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */);
     Parameter get = Parameter(), set = Parameter();
     set.set<Parameter::common>(common);
-    EXPECT_IS_OK(effect->setParameter(set));
+    EXPECT_IS_OK(mEffect->setParameter(set));
 
     Parameter::Id id;
     id.set<Parameter::Id::commonTag>(Parameter::common);
-    EXPECT_IS_OK(effect->getParameter(id, &get));
+    EXPECT_IS_OK(mEffect->getParameter(id, &get));
     EXPECT_EQ(set, get) << set.toString() << " vs " << get.toString();
 
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Verify Parameters kept after stop.
 TEST_P(AudioEffectTest, SetAndGetParameterAfterStop) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */);
     Parameter get = Parameter(), set = Parameter();
     set.set<Parameter::common>(common);
-    EXPECT_IS_OK(effect->setParameter(set));
+    EXPECT_IS_OK(mEffect->setParameter(set));
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
     Parameter::Id id;
     id.set<Parameter::Id::commonTag>(Parameter::common);
-    EXPECT_IS_OK(effect->getParameter(id, &get));
+    EXPECT_IS_OK(mEffect->getParameter(id, &get));
     EXPECT_EQ(set, get) << set.toString() << " vs " << get.toString();
 
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Verify Parameters kept after reset.
 TEST_P(AudioEffectTest, SetAndGetParameterAfterReset) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(open(effect));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect));
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */);
     Parameter get = Parameter(), set = Parameter();
     set.set<Parameter::common>(common);
-    EXPECT_IS_OK(effect->setParameter(set));
+    EXPECT_IS_OK(mEffect->setParameter(set));
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::RESET));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::RESET));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
     Parameter::Id id;
     id.set<Parameter::Id::commonTag>(Parameter::common);
-    EXPECT_IS_OK(effect->getParameter(id, &get));
+    EXPECT_IS_OK(mEffect->getParameter(id, &get));
     EXPECT_EQ(set, get) << set.toString() << " vs " << get.toString();
 
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
-
 /// Data processing test
 // Send data to effects and expect it to be consumed by checking statusMQ.
 TEST_P(AudioEffectTest, ConsumeDataInProcessingState) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */,
             kInputFrameCount /* iFrameCount */, kOutputFrameCount /* oFrameCount */);
     IEffect::OpenEffectReturn ret;
-    ASSERT_NO_FATAL_FAILURE(open(effect, common, std::nullopt /* specific */, &ret, EX_NONE));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect, common, std::nullopt /* specific */, &ret, EX_NONE));
     auto statusMQ = std::make_unique<EffectHelper::StatusMQ>(ret.statusMQ);
+    ASSERT_TRUE(statusMQ->isValid());
     auto inputMQ = std::make_unique<EffectHelper::DataMQ>(ret.inputDataMQ);
+    ASSERT_TRUE(inputMQ->isValid());
     auto outputMQ = std::make_unique<EffectHelper::DataMQ>(ret.outputDataMQ);
+    ASSERT_TRUE(outputMQ->isValid());
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
 
     std::vector<float> buffer;
     EffectHelper::allocateInputData(common, inputMQ, buffer);
     EffectHelper::writeToFmq(inputMQ, buffer);
     EffectHelper::readFromFmq(statusMQ, 1, outputMQ, buffer.size(), buffer);
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Send data to effects and expect it to be consumed after effect restart.
 TEST_P(AudioEffectTest, ConsumeDataAfterRestart) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */,
             kInputFrameCount /* iFrameCount */, kOutputFrameCount /* oFrameCount */);
     IEffect::OpenEffectReturn ret;
-    ASSERT_NO_FATAL_FAILURE(open(effect, common, std::nullopt /* specific */, &ret, EX_NONE));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect, common, std::nullopt /* specific */, &ret, EX_NONE));
     auto statusMQ = std::make_unique<EffectHelper::StatusMQ>(ret.statusMQ);
+    ASSERT_TRUE(statusMQ->isValid());
     auto inputMQ = std::make_unique<EffectHelper::DataMQ>(ret.inputDataMQ);
+    ASSERT_TRUE(inputMQ->isValid());
     auto outputMQ = std::make_unique<EffectHelper::DataMQ>(ret.outputDataMQ);
+    ASSERT_TRUE(outputMQ->isValid());
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
 
     std::vector<float> buffer;
     EffectHelper::allocateInputData(common, inputMQ, buffer);
     EffectHelper::writeToFmq(inputMQ, buffer);
     EffectHelper::readFromFmq(statusMQ, 1, outputMQ, buffer.size(), buffer);
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Send data to IDLE effects and expect it to be consumed after effect start.
 TEST_P(AudioEffectTest, SendDataAtIdleAndConsumeDataInProcessing) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */,
             kInputFrameCount /* iFrameCount */, kOutputFrameCount /* oFrameCount */);
     IEffect::OpenEffectReturn ret;
-    ASSERT_NO_FATAL_FAILURE(open(effect, common, std::nullopt /* specific */, &ret, EX_NONE));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect, common, std::nullopt /* specific */, &ret, EX_NONE));
     auto statusMQ = std::make_unique<EffectHelper::StatusMQ>(ret.statusMQ);
+    ASSERT_TRUE(statusMQ->isValid());
     auto inputMQ = std::make_unique<EffectHelper::DataMQ>(ret.inputDataMQ);
+    ASSERT_TRUE(inputMQ->isValid());
     auto outputMQ = std::make_unique<EffectHelper::DataMQ>(ret.outputDataMQ);
+    ASSERT_TRUE(outputMQ->isValid());
 
     std::vector<float> buffer;
     EffectHelper::allocateInputData(common, inputMQ, buffer);
     EffectHelper::writeToFmq(inputMQ, buffer);
     EffectHelper::readFromFmq(statusMQ, 0, outputMQ, 0, buffer);
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
 
     EffectHelper::readFromFmq(statusMQ, 1, outputMQ, buffer.size(), buffer);
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Send data multiple times.
 TEST_P(AudioEffectTest, ProcessDataMultipleTimes) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */,
             kInputFrameCount /* iFrameCount */, kOutputFrameCount /* oFrameCount */);
     IEffect::OpenEffectReturn ret;
-    ASSERT_NO_FATAL_FAILURE(open(effect, common, std::nullopt /* specific */, &ret, EX_NONE));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect, common, std::nullopt /* specific */, &ret, EX_NONE));
     auto statusMQ = std::make_unique<EffectHelper::StatusMQ>(ret.statusMQ);
+    ASSERT_TRUE(statusMQ->isValid());
     auto inputMQ = std::make_unique<EffectHelper::DataMQ>(ret.inputDataMQ);
+    ASSERT_TRUE(inputMQ->isValid());
     auto outputMQ = std::make_unique<EffectHelper::DataMQ>(ret.outputDataMQ);
+    ASSERT_TRUE(outputMQ->isValid());
 
     std::vector<float> buffer;
     EffectHelper::allocateInputData(common, inputMQ, buffer);
     EffectHelper::writeToFmq(inputMQ, buffer);
     EffectHelper::readFromFmq(statusMQ, 0, outputMQ, 0, buffer);
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
 
     EffectHelper::readFromFmq(statusMQ, 1, outputMQ, buffer.size(), buffer);
     // expect no status and data after consume
@@ -634,77 +635,81 @@
     // expect no status and data after consume
     EffectHelper::readFromFmq(statusMQ, 0, outputMQ, 0, buffer);
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Send data to IDLE state effects and expect it not be consumed.
 TEST_P(AudioEffectTest, NotConsumeDataInIdleState) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */,
             kInputFrameCount /* iFrameCount */, kOutputFrameCount /* oFrameCount */);
     IEffect::OpenEffectReturn ret;
-    ASSERT_NO_FATAL_FAILURE(open(effect, common, std::nullopt /* specific */, &ret, EX_NONE));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect, common, std::nullopt /* specific */, &ret, EX_NONE));
     auto statusMQ = std::make_unique<EffectHelper::StatusMQ>(ret.statusMQ);
+    ASSERT_TRUE(statusMQ->isValid());
     auto inputMQ = std::make_unique<EffectHelper::DataMQ>(ret.inputDataMQ);
+    ASSERT_TRUE(inputMQ->isValid());
     auto outputMQ = std::make_unique<EffectHelper::DataMQ>(ret.outputDataMQ);
+    ASSERT_TRUE(outputMQ->isValid());
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
     std::vector<float> buffer;
     EffectHelper::allocateInputData(common, inputMQ, buffer);
     EffectHelper::writeToFmq(inputMQ, buffer);
     EffectHelper::readFromFmq(statusMQ, 0, outputMQ, 0, buffer);
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::START));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::PROCESSING));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::START));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::PROCESSING));
     EffectHelper::readFromFmq(statusMQ, 1, outputMQ, buffer.size(), buffer);
 
-    ASSERT_NO_FATAL_FAILURE(command(effect, CommandId::STOP));
-    ASSERT_NO_FATAL_FAILURE(expectState(effect, State::IDLE));
+    ASSERT_NO_FATAL_FAILURE(command(mEffect, CommandId::STOP));
+    ASSERT_NO_FATAL_FAILURE(expectState(mEffect, State::IDLE));
 
-    ASSERT_NO_FATAL_FAILURE(close(effect));
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Send data to closed effects and expect it not be consumed.
 TEST_P(AudioEffectTest, NotConsumeDataByClosedEffect) {
-    std::shared_ptr<IEffect> effect;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect, mIdentity));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
 
     Parameter::Common common = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */,
             kInputFrameCount /* iFrameCount */, kOutputFrameCount /* oFrameCount */);
     IEffect::OpenEffectReturn ret;
-    ASSERT_NO_FATAL_FAILURE(open(effect, common, std::nullopt /* specific */, &ret, EX_NONE));
-    ASSERT_NO_FATAL_FAILURE(close(effect));
+    ASSERT_NO_FATAL_FAILURE(open(mEffect, common, std::nullopt /* specific */, &ret, EX_NONE));
+    ASSERT_NO_FATAL_FAILURE(close(mEffect));
 
     auto statusMQ = std::make_unique<EffectHelper::StatusMQ>(ret.statusMQ);
+    ASSERT_TRUE(statusMQ->isValid());
     auto inputMQ = std::make_unique<EffectHelper::DataMQ>(ret.inputDataMQ);
+    ASSERT_TRUE(inputMQ->isValid());
     auto outputMQ = std::make_unique<EffectHelper::DataMQ>(ret.outputDataMQ);
+    ASSERT_TRUE(outputMQ->isValid());
 
     std::vector<float> buffer;
     EffectHelper::allocateInputData(common, inputMQ, buffer);
     EffectHelper::writeToFmq(inputMQ, buffer);
     EffectHelper::readFromFmq(statusMQ, 0, outputMQ, 0, buffer);
 
-    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, effect));
+    ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
 }
 
 // Send data to multiple effects.
 TEST_P(AudioEffectTest, ConsumeDataMultipleEffects) {
     std::shared_ptr<IEffect> effect1, effect2;
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect1, mIdentity));
-    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect2, mIdentity));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect1, mDescriptor));
+    ASSERT_NO_FATAL_FAILURE(create(mFactory, effect2, mDescriptor));
 
     Parameter::Common common1 = EffectHelper::createParamCommon(
             0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */,
@@ -721,8 +726,11 @@
     ASSERT_NO_FATAL_FAILURE(expectState(effect2, State::PROCESSING));
 
     auto statusMQ1 = std::make_unique<EffectHelper::StatusMQ>(ret1.statusMQ);
+    ASSERT_TRUE(statusMQ1->isValid());
     auto inputMQ1 = std::make_unique<EffectHelper::DataMQ>(ret1.inputDataMQ);
+    ASSERT_TRUE(inputMQ1->isValid());
     auto outputMQ1 = std::make_unique<EffectHelper::DataMQ>(ret1.outputDataMQ);
+    ASSERT_TRUE(outputMQ1->isValid());
 
     std::vector<float> buffer1, buffer2;
     EffectHelper::allocateInputData(common1, inputMQ1, buffer1);
@@ -730,8 +738,11 @@
     EffectHelper::readFromFmq(statusMQ1, 1, outputMQ1, buffer1.size(), buffer1);
 
     auto statusMQ2 = std::make_unique<EffectHelper::StatusMQ>(ret2.statusMQ);
+    ASSERT_TRUE(statusMQ2->isValid());
     auto inputMQ2 = std::make_unique<EffectHelper::DataMQ>(ret2.inputDataMQ);
+    ASSERT_TRUE(inputMQ2->isValid());
     auto outputMQ2 = std::make_unique<EffectHelper::DataMQ>(ret2.outputDataMQ);
+    ASSERT_TRUE(outputMQ2->isValid());
     EffectHelper::allocateInputData(common2, inputMQ2, buffer2);
     EffectHelper::writeToFmq(inputMQ2, buffer2);
     EffectHelper::readFromFmq(statusMQ2, 1, outputMQ2, buffer2.size(), buffer2);
@@ -752,9 +763,11 @@
         ::testing::Combine(testing::ValuesIn(
                 EffectFactoryHelper::getAllEffectDescriptors(IFactory::descriptor))),
         [](const testing::TestParamInfo<AudioEffectTest::ParamType>& info) {
-            auto instance = std::get<PARAM_INSTANCE_NAME>(info.param);
-            std::string name = "TYPE_" + instance.second.type.toString() + "_UUID_" +
-                               instance.second.uuid.toString();
+            auto descriptor = std::get<PARAM_INSTANCE_NAME>(info.param).second;
+            std::string name = "Implementor_" + descriptor.common.implementor + "_name_" +
+                               descriptor.common.name + "_TYPE_" +
+                               descriptor.common.id.type.toString() + "_UUID_" +
+                               descriptor.common.id.uuid.toString();
             std::replace_if(
                     name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
             return name;
diff --git a/audio/aidl/vts/VtsHalBassBoostTargetTest.cpp b/audio/aidl/vts/VtsHalBassBoostTargetTest.cpp
index 7adf63c..724a9c3 100644
--- a/audio/aidl/vts/VtsHalBassBoostTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalBassBoostTargetTest.cpp
@@ -37,8 +37,7 @@
  * VtsAudioEffectTargetTest.
  */
 enum ParamName { PARAM_INSTANCE_NAME, PARAM_STRENGTH };
-using BassBoostParamTestParam =
-        std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor::Identity>, int>;
+using BassBoostParamTestParam = std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor>, int>;
 
 /*
  * Testing parameter range, assuming the parameter supported by effect is in this range.
@@ -60,12 +59,12 @@
                            public EffectHelper {
   public:
     BassBoostParamTest() : mParamStrength(std::get<PARAM_STRENGTH>(GetParam())) {
-        std::tie(mFactory, mIdentity) = std::get<PARAM_INSTANCE_NAME>(GetParam());
+        std::tie(mFactory, mDescriptor) = std::get<PARAM_INSTANCE_NAME>(GetParam());
     }
 
     void SetUp() override {
         ASSERT_NE(nullptr, mFactory);
-        ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mIdentity));
+        ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
 
         Parameter::Specific specific = getDefaultParamSpecific();
         Parameter::Common common = EffectHelper::createParamCommon(
@@ -91,7 +90,7 @@
     static const long kInputFrameCount = 0x100, kOutputFrameCount = 0x100;
     std::shared_ptr<IFactory> mFactory;
     std::shared_ptr<IEffect> mEffect;
-    Descriptor::Identity mIdentity;
+    Descriptor mDescriptor;
     int mParamStrength = BassBoost::MIN_PER_MILLE_STRENGTH;
 
     void SetAndGetBassBoostParameters() {
@@ -167,9 +166,11 @@
                                    IFactory::descriptor, kBassBoostTypeUUID)),
                            testing::ValuesIn(kStrengthValues)),
         [](const testing::TestParamInfo<BassBoostParamTest::ParamType>& info) {
-            auto instance = std::get<PARAM_INSTANCE_NAME>(info.param);
+            auto descriptor = std::get<PARAM_INSTANCE_NAME>(info.param).second;
             std::string strength = std::to_string(std::get<PARAM_STRENGTH>(info.param));
-            std::string name = instance.second.uuid.toString() + "_strength_" + strength;
+            std::string name = "Implementor_" + descriptor.common.implementor + "_name_" +
+                               descriptor.common.name + "_UUID_" +
+                               descriptor.common.id.uuid.toString() + "_strength_" + strength;
             std::replace_if(
                     name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
             return name;
diff --git a/audio/aidl/vts/VtsHalEqualizerTargetTest.cpp b/audio/aidl/vts/VtsHalEqualizerTargetTest.cpp
index 1b147a6..e11a936 100644
--- a/audio/aidl/vts/VtsHalEqualizerTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalEqualizerTargetTest.cpp
@@ -57,8 +57,7 @@
  */
 
 enum ParamName { PARAM_INSTANCE_NAME, PARAM_BAND_LEVEL };
-using EqualizerParamTestParam =
-        std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor::Identity>, int>;
+using EqualizerParamTestParam = std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor>, int>;
 
 /*
 Testing parameter range, assuming the parameter supported by effect is in this range.
@@ -71,12 +70,12 @@
                       public EffectHelper {
   public:
     EqualizerTest() : mBandLevel(std::get<PARAM_BAND_LEVEL>(GetParam())) {
-        std::tie(mFactory, mIdentity) = std::get<PARAM_INSTANCE_NAME>(GetParam());
+        std::tie(mFactory, mDescriptor) = std::get<PARAM_INSTANCE_NAME>(GetParam());
     }
 
     void SetUp() override {
         ASSERT_NE(nullptr, mFactory);
-        ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mIdentity));
+        ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
 
         Parameter::Specific specific = getDefaultParamSpecific();
         Parameter::Common common = EffectHelper::createParamCommon(
@@ -115,7 +114,7 @@
     static const long kInputFrameCount = 0x100, kOutputFrameCount = 0x100;
     std::shared_ptr<IFactory> mFactory;
     std::shared_ptr<IEffect> mEffect;
-    Descriptor::Identity mIdentity;
+    Descriptor mDescriptor;
     std::pair<int, int> mPresetIndex;
     std::pair<int, int> mBandIndex;
     const int mBandLevel;
@@ -327,9 +326,11 @@
                                    IFactory::descriptor, kEqualizerTypeUUID)),
                            testing::ValuesIn(kBandLevels)),
         [](const testing::TestParamInfo<EqualizerTest::ParamType>& info) {
-            auto instance = std::get<PARAM_INSTANCE_NAME>(info.param);
+            auto descriptor = std::get<PARAM_INSTANCE_NAME>(info.param).second;
             std::string bandLevel = std::to_string(std::get<PARAM_BAND_LEVEL>(info.param));
-            std::string name = instance.second.uuid.toString() + "_bandLevel_" + bandLevel;
+            std::string name = "Implementor_" + descriptor.common.implementor + "_name_" +
+                               descriptor.common.name + "_UUID_" +
+                               descriptor.common.id.uuid.toString() + "_bandLevel_" + bandLevel;
             std::replace_if(
                     name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
             return name;
diff --git a/audio/aidl/vts/VtsHalLoudnessEnhancerTargetTest.cpp b/audio/aidl/vts/VtsHalLoudnessEnhancerTargetTest.cpp
index 3fd2812..305c243 100644
--- a/audio/aidl/vts/VtsHalLoudnessEnhancerTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalLoudnessEnhancerTargetTest.cpp
@@ -38,7 +38,7 @@
  */
 enum ParamName { PARAM_INSTANCE_NAME, PARAM_GAIN_MB };
 using LoudnessEnhancerParamTestParam =
-        std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor::Identity>, int>;
+        std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor>, int>;
 
 // Every int 32 bit value is a valid gain, so testing the corner cases and one regular value.
 // TODO : Update the test values once range/capability is updated by implementation.
@@ -49,12 +49,12 @@
                                   public EffectHelper {
   public:
     LoudnessEnhancerParamTest() : mParamGainMb(std::get<PARAM_GAIN_MB>(GetParam())) {
-        std::tie(mFactory, mIdentity) = std::get<PARAM_INSTANCE_NAME>(GetParam());
+        std::tie(mFactory, mDescriptor) = std::get<PARAM_INSTANCE_NAME>(GetParam());
     }
 
     void SetUp() override {
         ASSERT_NE(nullptr, mFactory);
-        ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mIdentity));
+        ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
 
         Parameter::Specific specific = getDefaultParamSpecific();
         Parameter::Common common = EffectHelper::createParamCommon(
@@ -79,7 +79,7 @@
     static const long kInputFrameCount = 0x100, kOutputFrameCount = 0x100;
     std::shared_ptr<IFactory> mFactory;
     std::shared_ptr<IEffect> mEffect;
-    Descriptor::Identity mIdentity;
+    Descriptor mDescriptor;
     int mParamGainMb = 0;
 
     void SetAndGetParameters() {
@@ -130,9 +130,11 @@
                                    IFactory::descriptor, kLoudnessEnhancerTypeUUID)),
                            testing::ValuesIn(kGainMbValues)),
         [](const testing::TestParamInfo<LoudnessEnhancerParamTest::ParamType>& info) {
-            auto instance = std::get<PARAM_INSTANCE_NAME>(info.param);
+            auto descriptor = std::get<PARAM_INSTANCE_NAME>(info.param).second;
             std::string gainMb = std::to_string(std::get<PARAM_GAIN_MB>(info.param));
-            std::string name = instance.second.uuid.toString() + "_gainMb_" + gainMb;
+            std::string name = "Implementor_" + descriptor.common.implementor + "_name_" +
+                               descriptor.common.name + "_UUID_" +
+                               descriptor.common.id.uuid.toString() + "_gainMb_" + gainMb;
             std::replace_if(
                     name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
             return name;
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/AidlCasPluginDescriptor.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/AidlCasPluginDescriptor.aidl
index 7b8099f..89d8625 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/AidlCasPluginDescriptor.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/AidlCasPluginDescriptor.aidl
@@ -32,6 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.cas;
+/* @hide */
 @VintfStability
 parcelable AidlCasPluginDescriptor {
   int caSystemId;
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/DestinationBuffer.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/DestinationBuffer.aidl
index dd355af..b69cc33 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/DestinationBuffer.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/DestinationBuffer.aidl
@@ -32,6 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.cas;
+/* @hide */
 @VintfStability
 union DestinationBuffer {
   android.hardware.cas.SharedBuffer nonsecureMemory;
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ICas.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ICas.aidl
index e169beb..28c9eb0 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ICas.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ICas.aidl
@@ -32,6 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.cas;
+/* @hide */
 @VintfStability
 interface ICas {
   void closeSession(in byte[] sessionId);
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ICasListener.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ICasListener.aidl
index ebc13ce..db75062 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ICasListener.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ICasListener.aidl
@@ -32,6 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.cas;
+/* @hide */
 @VintfStability
 interface ICasListener {
   void onEvent(in int event, in int arg, in byte[] data);
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/IDescrambler.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/IDescrambler.aidl
index 9bf7903..411891b 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/IDescrambler.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/IDescrambler.aidl
@@ -32,6 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.cas;
+/* @hide */
 @VintfStability
 interface IDescrambler {
   int descramble(in android.hardware.cas.ScramblingControl scramblingControl, in android.hardware.cas.SubSample[] subSamples, in android.hardware.cas.SharedBuffer srcBuffer, in long srcOffset, in android.hardware.cas.DestinationBuffer dstBuffer, in long dstOffset);
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/IMediaCasService.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/IMediaCasService.aidl
index f5c8018..1f945a7 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/IMediaCasService.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/IMediaCasService.aidl
@@ -32,6 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.cas;
+/* @hide */
 @VintfStability
 interface IMediaCasService {
   android.hardware.cas.IDescrambler createDescrambler(in int CA_system_id);
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ScramblingMode.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ScramblingMode.aidl
index e3923c7..c73f482 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ScramblingMode.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/ScramblingMode.aidl
@@ -44,9 +44,9 @@
   DVB_IDSA = 7,
   MULTI2 = 8,
   AES128 = 9,
-  AES_CBC = 10,
-  AES_ECB = 11,
-  AES_SCTE52 = 12,
-  TDES_ECB = 13,
-  TDES_SCTE52 = 14,
+  AES_ECB = 10,
+  AES_SCTE52 = 11,
+  TDES_ECB = 12,
+  TDES_SCTE52 = 13,
+  AES_CBC = 14,
 }
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/SharedBuffer.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/SharedBuffer.aidl
index a18aa57..9200b1d 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/SharedBuffer.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/SharedBuffer.aidl
@@ -32,6 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.cas;
+/* @hide */
 @VintfStability
 parcelable SharedBuffer {
   android.hardware.common.Ashmem heapBase;
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/Status.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/Status.aidl
index 3d3a8a0..343c810 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/Status.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/Status.aidl
@@ -32,6 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.cas;
+/* @hide */
 @VintfStability
 parcelable Status {
   const int OK = 0;
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/StatusEvent.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/StatusEvent.aidl
index 178cabc..165c0d4 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/StatusEvent.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/StatusEvent.aidl
@@ -32,6 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.cas;
+/* @hide */
 @Backing(type="byte") @VintfStability
 enum StatusEvent {
   PLUGIN_PHYSICAL_MODULE_CHANGED = 0,
diff --git a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/SubSample.aidl b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/SubSample.aidl
index d9ee3b4..5bd1a1e 100644
--- a/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/SubSample.aidl
+++ b/cas/aidl/aidl_api/android.hardware.cas/current/android/hardware/cas/SubSample.aidl
@@ -32,6 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.cas;
+/* @hide */
 @VintfStability
 parcelable SubSample {
   int numBytesOfClearData;
diff --git a/cas/aidl/android/hardware/cas/AidlCasPluginDescriptor.aidl b/cas/aidl/android/hardware/cas/AidlCasPluginDescriptor.aidl
index 55b328a..1dc7ac6 100644
--- a/cas/aidl/android/hardware/cas/AidlCasPluginDescriptor.aidl
+++ b/cas/aidl/android/hardware/cas/AidlCasPluginDescriptor.aidl
@@ -18,6 +18,7 @@
 
 /**
  * Describes a CAS plugin with its system ID and name.
+ * @hide
  */
 @VintfStability
 parcelable AidlCasPluginDescriptor {
diff --git a/cas/aidl/android/hardware/cas/DestinationBuffer.aidl b/cas/aidl/android/hardware/cas/DestinationBuffer.aidl
index 068f29d..74336c2 100644
--- a/cas/aidl/android/hardware/cas/DestinationBuffer.aidl
+++ b/cas/aidl/android/hardware/cas/DestinationBuffer.aidl
@@ -19,6 +19,9 @@
 import android.hardware.cas.SharedBuffer;
 import android.hardware.common.NativeHandle;
 
+/**
+ * @hide
+ */
 @VintfStability
 union DestinationBuffer {
     /**
diff --git a/cas/aidl/android/hardware/cas/ICas.aidl b/cas/aidl/android/hardware/cas/ICas.aidl
index 4c938c7..e6494ae 100644
--- a/cas/aidl/android/hardware/cas/ICas.aidl
+++ b/cas/aidl/android/hardware/cas/ICas.aidl
@@ -23,6 +23,7 @@
  * ICas is the API to control the CAS. It is used to manage sessions, provision/refresh the cas
  * system, and process the EMM/ECM messages. It also allows bi-directional, scheme-specific
  * communications between the client and the cas system.
+ * @hide
  */
 @VintfStability
 interface ICas {
diff --git a/cas/aidl/android/hardware/cas/ICasListener.aidl b/cas/aidl/android/hardware/cas/ICasListener.aidl
index 32d843f..21cd257 100644
--- a/cas/aidl/android/hardware/cas/ICasListener.aidl
+++ b/cas/aidl/android/hardware/cas/ICasListener.aidl
@@ -18,6 +18,9 @@
 
 import android.hardware.cas.StatusEvent;
 
+/**
+ * @hide
+ */
 @VintfStability
 interface ICasListener {
     /**
diff --git a/cas/aidl/android/hardware/cas/IDescrambler.aidl b/cas/aidl/android/hardware/cas/IDescrambler.aidl
index 33fbe75..0ac995c 100644
--- a/cas/aidl/android/hardware/cas/IDescrambler.aidl
+++ b/cas/aidl/android/hardware/cas/IDescrambler.aidl
@@ -23,6 +23,7 @@
 
 /**
  * IDescrambler is the API to control the descrambling operations.
+ * @hide
  */
 @VintfStability
 interface IDescrambler {
diff --git a/cas/aidl/android/hardware/cas/IMediaCasService.aidl b/cas/aidl/android/hardware/cas/IMediaCasService.aidl
index 8bc31f6..641c4a9 100644
--- a/cas/aidl/android/hardware/cas/IMediaCasService.aidl
+++ b/cas/aidl/android/hardware/cas/IMediaCasService.aidl
@@ -26,6 +26,7 @@
  * cas HAL to create cas and descrambler plugin instances. A cas plugin instance
  * opens cas sessions which are used to obtain keys for a descrambler session,
  * which can in turn be used to descramble protected video content.
+ * @hide
  */
 @VintfStability
 interface IMediaCasService {
diff --git a/cas/aidl/android/hardware/cas/ScramblingMode.aidl b/cas/aidl/android/hardware/cas/ScramblingMode.aidl
index 9d73eba..2a4858a 100644
--- a/cas/aidl/android/hardware/cas/ScramblingMode.aidl
+++ b/cas/aidl/android/hardware/cas/ScramblingMode.aidl
@@ -70,11 +70,6 @@
     AES128,
 
     /**
-     * Advanced Encryption System (AES) Cipher Block Chaining (CBC) mode.
-     */
-    AES_CBC,
-
-    /**
      * Advanced Encryption System (AES) Electronic Code Book (ECB) mode.
      */
     AES_ECB,
@@ -95,4 +90,9 @@
      * Engineers (SCTE) 52 mode.
      */
     TDES_SCTE52,
+
+    /**
+     * Advanced Encryption System (AES) Cipher Block Chaining (CBC) mode.
+     */
+    AES_CBC,
 }
diff --git a/cas/aidl/android/hardware/cas/SharedBuffer.aidl b/cas/aidl/android/hardware/cas/SharedBuffer.aidl
index 8a94ff7..0c89cfe 100644
--- a/cas/aidl/android/hardware/cas/SharedBuffer.aidl
+++ b/cas/aidl/android/hardware/cas/SharedBuffer.aidl
@@ -22,6 +22,7 @@
  * SharedBuffer describes a shared buffer which is defined by a heapBase, an
  * offset and a size. The offset is relative to the shared memory base for the
  * memory region identified by heapBase.
+ * @hide
  */
 @VintfStability
 parcelable SharedBuffer {
diff --git a/cas/aidl/android/hardware/cas/Status.aidl b/cas/aidl/android/hardware/cas/Status.aidl
index b2be34b..e7ae8ff 100644
--- a/cas/aidl/android/hardware/cas/Status.aidl
+++ b/cas/aidl/android/hardware/cas/Status.aidl
@@ -16,6 +16,9 @@
 
 package android.hardware.cas;
 
+/**
+ * @hide
+ */
 @VintfStability
 parcelable Status {
     /**
diff --git a/cas/aidl/android/hardware/cas/StatusEvent.aidl b/cas/aidl/android/hardware/cas/StatusEvent.aidl
index 0f62634..1fe732e 100644
--- a/cas/aidl/android/hardware/cas/StatusEvent.aidl
+++ b/cas/aidl/android/hardware/cas/StatusEvent.aidl
@@ -18,6 +18,7 @@
 
 /**
  * The Event Type for status change.
+ * @hide
  */
 @VintfStability
 @Backing(type="byte")
diff --git a/cas/aidl/android/hardware/cas/SubSample.aidl b/cas/aidl/android/hardware/cas/SubSample.aidl
index c1353cb..8e1ff77 100644
--- a/cas/aidl/android/hardware/cas/SubSample.aidl
+++ b/cas/aidl/android/hardware/cas/SubSample.aidl
@@ -19,6 +19,7 @@
 /**
  * A subsample consists of some number of bytes of clear (unscrambled)
  * data followed by a number of bytes of scrambled data.
+ * @hide
  */
 @VintfStability
 parcelable SubSample {
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index c4a5d25..99d4bb7 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -461,6 +461,15 @@
         </interface>
     </hal>
     <hal format="aidl" optional="true">
+        <name>android.hardware.media.c2</name>
+        <version>1</version>
+        <interface>
+            <name>IComponentStore</name>
+            <regex-instance>default[0-9]*</regex-instance>
+            <regex-instance>vendor[0-9]*_software</regex-instance>
+        </interface>
+    </hal>
+    <hal format="aidl" optional="true">
         <name>android.hardware.memtrack</name>
         <version>1</version>
         <interface>
diff --git a/compatibility_matrices/exclude/fcm_exclude.cpp b/compatibility_matrices/exclude/fcm_exclude.cpp
index cb77c7b..cf1e138 100644
--- a/compatibility_matrices/exclude/fcm_exclude.cpp
+++ b/compatibility_matrices/exclude/fcm_exclude.cpp
@@ -61,6 +61,7 @@
             "android.hardware.graphics.common",
             "android.hardware.input.common",
             "android.hardware.keymaster",
+            "android.hardware.media.bufferpool2",
             "android.hardware.radio",
             "android.hardware.uwb.fira_android",
 
diff --git a/graphics/common/aidl/android/hardware/graphics/common/StandardMetadataType.aidl b/graphics/common/aidl/android/hardware/graphics/common/StandardMetadataType.aidl
index 8126143..4bca795 100644
--- a/graphics/common/aidl/android/hardware/graphics/common/StandardMetadataType.aidl
+++ b/graphics/common/aidl/android/hardware/graphics/common/StandardMetadataType.aidl
@@ -22,9 +22,9 @@
  * This is an enum that defines the common types of gralloc 4 buffer metadata. The comments for
  * each enum include a description of the metadata that is associated with the type.
  *
- * IMapper@4.x must support getting the following standard buffer metadata types, with the exception
- * of SMPTE 2094-10 metadata. IMapper@4.x may support setting these standard buffer metadata types
- * as well.
+ * IMapper@4.x & later must support getting the following standard buffer metadata types, with the
+ * exception of SMPTE 2094-10 and SMPTE 2094-40 metadata. IMapper@4.x & later may support setting
+ * these standard buffer metadata types as well.
  *
  * When encoding these StandardMetadataTypes into a byte stream, the associated MetadataType is
  * is first encoded followed by the StandardMetadataType value. The MetadataType is encoded by
diff --git a/graphics/mapper/stable-c/Android.bp b/graphics/mapper/stable-c/Android.bp
index c03f67e..d40e160 100644
--- a/graphics/mapper/stable-c/Android.bp
+++ b/graphics/mapper/stable-c/Android.bp
@@ -61,6 +61,10 @@
     srcs: [
         "implutils/impltests.cpp",
     ],
+    shared_libs: [
+        "libgralloctypes",
+        "libhidlbase",
+    ],
     visibility: [":__subpackages__"],
     cpp_std: "experimental",
 }
diff --git a/graphics/mapper/stable-c/implutils/impltests.cpp b/graphics/mapper/stable-c/implutils/impltests.cpp
index 9c5d70b..f12b069 100644
--- a/graphics/mapper/stable-c/implutils/impltests.cpp
+++ b/graphics/mapper/stable-c/implutils/impltests.cpp
@@ -18,123 +18,29 @@
 
 #include <android/hardware/graphics/mapper/utils/IMapperMetadataTypes.h>
 #include <android/hardware/graphics/mapper/utils/IMapperProvider.h>
+#include <drm/drm_fourcc.h>
+#include <gralloctypes/Gralloc4.h>
+#include <span>
 #include <vector>
 
+using namespace ::android;
 using namespace ::android::hardware::graphics::mapper;
 using namespace ::aidl::android::hardware::graphics::common;
+namespace gralloc4 = ::android::gralloc4;
+using ::android::hardware::hidl_vec;
 
 // These tests are primarily interested in hitting all the different *types* that can be
 // serialized/deserialized than in exhaustively testing all the StandardMetadataTypes.
 // Exhaustive testing of the actual metadata types is relegated for IMapper's VTS suite
 // where meaning & correctness of values are more narrowly defined (eg, read-only values)
 
-TEST(Metadata, setGetBufferId) {
-    using BufferId = StandardMetadata<StandardMetadataType::BUFFER_ID>::value;
+static constexpr auto HeaderSize = 69;
 
-    std::vector<char> buffer;
-    buffer.resize(12, 0);
-    *reinterpret_cast<int64_t*>(buffer.data()) = 42;
-
-    EXPECT_EQ(8, BufferId::encode(18, buffer.data(), 0));
-    EXPECT_EQ(42, *reinterpret_cast<int64_t*>(buffer.data()));
-    EXPECT_EQ(8, BufferId::encode(18, buffer.data(), buffer.size()));
-    EXPECT_EQ(18, *reinterpret_cast<int64_t*>(buffer.data()));
-    EXPECT_FALSE(BufferId::decode(buffer.data(), 0));
-    auto read = BufferId::decode(buffer.data(), buffer.size());
-    EXPECT_TRUE(read.has_value());
-    EXPECT_EQ(18, read.value_or(0));
+static std::span<uint8_t> SkipHeader(std::vector<uint8_t>& buffer) {
+    return std::span<uint8_t>(buffer).subspan(HeaderSize);
 }
 
-TEST(Metadata, setGetDataspace) {
-    using DataspaceValue = StandardMetadata<StandardMetadataType::DATASPACE>::value;
-    using intType = std::underlying_type_t<Dataspace>;
-    std::vector<char> buffer;
-    buffer.resize(12, 0);
-
-    EXPECT_EQ(4, DataspaceValue::encode(Dataspace::BT2020, buffer.data(), 0));
-    EXPECT_EQ(0, *reinterpret_cast<intType*>(buffer.data()));
-    EXPECT_EQ(4, DataspaceValue::encode(Dataspace::BT2020, buffer.data(), buffer.size()));
-    EXPECT_EQ(static_cast<intType>(Dataspace::BT2020), *reinterpret_cast<intType*>(buffer.data()));
-    EXPECT_FALSE(DataspaceValue::decode(buffer.data(), 0));
-    auto read = DataspaceValue::decode(buffer.data(), buffer.size());
-    ASSERT_TRUE(read.has_value());
-    EXPECT_EQ(Dataspace::BT2020, *read);
-}
-
-TEST(Metadata, setGetValidName) {
-    using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;
-
-    std::vector<char> buffer;
-    buffer.resize(100, 'a');
-    buffer[buffer.size() - 1] = '\0';
-
-    // len("Hello") + sizeof(int64)
-    constexpr int expectedSize = 5 + sizeof(int64_t);
-    EXPECT_EQ(expectedSize, NameValue::encode("Hello", buffer.data(), buffer.size()));
-    EXPECT_EQ(5, *reinterpret_cast<int64_t*>(buffer.data()));
-    // Verify didn't write past the end of the desired size
-    EXPECT_EQ('a', buffer[expectedSize]);
-
-    auto readValue = NameValue::decode(buffer.data(), buffer.size());
-    ASSERT_TRUE(readValue.has_value());
-    EXPECT_EQ(5, readValue->length());
-    EXPECT_EQ("Hello", *readValue);
-}
-
-TEST(Metadata, setGetInvalidName) {
-    using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;
-
-    std::vector<char> buffer;
-    buffer.resize(12, 'a');
-    buffer[buffer.size() - 1] = '\0';
-
-    // len("This is a long string") + sizeof(int64)
-    constexpr int expectedSize = 21 + sizeof(int64_t);
-    EXPECT_EQ(expectedSize,
-              NameValue::encode("This is a long string", buffer.data(), buffer.size()));
-    EXPECT_EQ(21, *reinterpret_cast<int64_t*>(buffer.data()));
-    // Verify didn't write the too-long string
-    EXPECT_EQ('a', buffer[9]);
-    EXPECT_EQ('\0', buffer[buffer.size() - 1]);
-
-    auto readValue = NameValue::decode(buffer.data(), buffer.size());
-    EXPECT_FALSE(readValue.has_value());
-    readValue = NameValue::decode(buffer.data(), 0);
-    ASSERT_FALSE(readValue.has_value());
-}
-
-TEST(Metadata, wouldOverflowName) {
-    using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;
-    std::vector<char> buffer(100, 0);
-
-    // int_max + sizeof(int64) overflows int32
-    std::string_view bad_string{"badbeef", std::numeric_limits<int32_t>::max()};
-    EXPECT_EQ(-AIMAPPER_ERROR_BAD_VALUE,
-              NameValue::encode(bad_string, buffer.data(), buffer.size()));
-
-    // check barely overflows
-    bad_string = std::string_view{"badbeef", std::numeric_limits<int32_t>::max() - 7};
-    EXPECT_EQ(-AIMAPPER_ERROR_BAD_VALUE,
-              NameValue::encode(bad_string, buffer.data(), buffer.size()));
-}
-
-TEST(Metadata, setGetCompression) {
-    using CompressionValue = StandardMetadata<StandardMetadataType::COMPRESSION>::value;
-    ExtendableType myCompression{"bestest_compression_ever", 42};
-    std::vector<char> buffer(100, '\0');
-    const int expectedSize = myCompression.name.length() + sizeof(int64_t) + sizeof(int64_t);
-    EXPECT_EQ(expectedSize, CompressionValue::encode(myCompression, buffer.data(), 0));
-    EXPECT_EQ(0, buffer[0]);
-    EXPECT_EQ(expectedSize, CompressionValue::encode(myCompression, buffer.data(), buffer.size()));
-    EXPECT_EQ(myCompression.name.length(), *reinterpret_cast<int64_t*>(buffer.data()));
-    EXPECT_FALSE(CompressionValue::decode(buffer.data(), 0).has_value());
-    auto read = CompressionValue::decode(buffer.data(), buffer.size());
-    ASSERT_TRUE(read.has_value());
-    EXPECT_EQ(myCompression, read.value());
-}
-
-TEST(Metadata, setGetPlaneLayout) {
-    using PlaneLayoutValue = StandardMetadata<StandardMetadataType::PLANE_LAYOUTS>::value;
+static std::vector<PlaneLayout> fakePlaneLayouts() {
     PlaneLayout myPlaneLayout;
     myPlaneLayout.offsetInBytes = 10;
     myPlaneLayout.sampleIncrementInBits = 11;
@@ -153,23 +59,147 @@
         it.sizeInBits = 30 + i;
     }
 
-    std::vector<PlaneLayout> layouts{myPlaneLayout, PlaneLayout{}};
+    return std::vector<PlaneLayout>{myPlaneLayout, PlaneLayout{}};
+}
 
-    std::vector<char> buffer(5000, '\0');
+TEST(Metadata, setGetBufferId) {
+    using BufferId = StandardMetadata<StandardMetadataType::BUFFER_ID>::value;
+
+    std::vector<uint8_t> buffer(10000, 0);
+    int64_t* payload = reinterpret_cast<int64_t*>(SkipHeader(buffer).data());
+    *payload = 42;
+
+    EXPECT_EQ(8 + HeaderSize, BufferId::encode(18, buffer.data(), 0));
+    EXPECT_EQ(42, *payload);
+    EXPECT_EQ(8 + HeaderSize, BufferId::encode(18, buffer.data(), buffer.size()));
+    EXPECT_EQ(18, *payload);
+    EXPECT_FALSE(BufferId::decode(buffer.data(), 0));
+    auto read = BufferId::decode(buffer.data(), buffer.size());
+    EXPECT_TRUE(read.has_value());
+    EXPECT_EQ(18, read.value_or(0));
+}
+
+TEST(Metadata, setGetDataspace) {
+    using DataspaceValue = StandardMetadata<StandardMetadataType::DATASPACE>::value;
+    using intType = std::underlying_type_t<Dataspace>;
+    std::vector<uint8_t> buffer(10000, 0);
+    auto data = SkipHeader(buffer);
+
+    EXPECT_EQ(4 + HeaderSize, DataspaceValue::encode(Dataspace::BT2020, buffer.data(), 0));
+    EXPECT_EQ(0, *reinterpret_cast<intType*>(data.data()));
+    EXPECT_EQ(4 + HeaderSize,
+              DataspaceValue::encode(Dataspace::BT2020, buffer.data(), buffer.size()));
+    EXPECT_EQ(static_cast<intType>(Dataspace::BT2020), *reinterpret_cast<intType*>(data.data()));
+    EXPECT_FALSE(DataspaceValue::decode(buffer.data(), 0));
+    auto read = DataspaceValue::decode(buffer.data(), buffer.size());
+    ASSERT_TRUE(read.has_value());
+    EXPECT_EQ(Dataspace::BT2020, *read);
+}
+
+TEST(Metadata, setGetValidName) {
+    using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;
+
+    std::vector<uint8_t> buffer(10000, 'a');
+
+    // len("Hello") + sizeof(int64)
+    constexpr int expectedSize = 5 + sizeof(int64_t) + HeaderSize;
+    EXPECT_EQ(expectedSize, NameValue::encode("Hello", buffer.data(), buffer.size()));
+    EXPECT_EQ(5, *reinterpret_cast<int64_t*>(SkipHeader(buffer).data()));
+    // Verify didn't write past the end of the desired size
+    EXPECT_EQ('a', buffer[expectedSize]);
+
+    auto readValue = NameValue::decode(buffer.data(), buffer.size());
+    ASSERT_TRUE(readValue.has_value());
+    EXPECT_EQ(5, readValue->length());
+    EXPECT_EQ("Hello", *readValue);
+}
+
+TEST(Metadata, setGetInvalidName) {
+    using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;
+
+    std::vector<uint8_t> buffer;
+    buffer.resize(12 + HeaderSize, 'a');
+    buffer[buffer.size() - 1] = '\0';
+
+    // len("This is a long string") + sizeof(int64)
+    constexpr int expectedSize = 21 + sizeof(int64_t) + HeaderSize;
+    EXPECT_EQ(expectedSize,
+              NameValue::encode("This is a long string", buffer.data(), buffer.size()));
+    EXPECT_EQ(21, *reinterpret_cast<int64_t*>(SkipHeader(buffer).data()));
+
+    auto readValue = NameValue::decode(buffer.data(), buffer.size());
+    EXPECT_FALSE(readValue.has_value());
+    readValue = NameValue::decode(buffer.data(), 0);
+    ASSERT_FALSE(readValue.has_value());
+}
+
+TEST(Metadata, wouldOverflowName) {
+    using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;
+    std::vector<uint8_t> buffer(10000, 0);
+
+    // int_max + sizeof(int64) overflows int32
+    std::string_view bad_string{"badbeef", std::numeric_limits<int32_t>::max()};
+    EXPECT_EQ(-AIMAPPER_ERROR_BAD_VALUE,
+              NameValue::encode(bad_string, buffer.data(), buffer.size()));
+
+    // check barely overflows
+    bad_string = std::string_view{"badbeef", std::numeric_limits<int32_t>::max() - 7};
+    EXPECT_EQ(-AIMAPPER_ERROR_BAD_VALUE,
+              NameValue::encode(bad_string, buffer.data(), buffer.size()));
+}
+
+TEST(Metadata, setGetMismatchedWidthHight) {
+    // Validates that the header is properly validated on decode
+    using WidthValue = StandardMetadata<StandardMetadataType::WIDTH>::value;
+    using HeightValue = StandardMetadata<StandardMetadataType::HEIGHT>::value;
+    std::vector<uint8_t> buffer(10000, 0);
+
+    EXPECT_EQ(8 + HeaderSize, WidthValue::encode(100, buffer.data(), buffer.size()));
+    EXPECT_EQ(100, *reinterpret_cast<uint64_t*>(SkipHeader(buffer).data()));
+    auto read = WidthValue::decode(buffer.data(), buffer.size());
+    ASSERT_TRUE(read.has_value());
+    EXPECT_EQ(100, *read);
+    read = HeightValue::decode(buffer.data(), buffer.size());
+    EXPECT_FALSE(read.has_value());
+}
+
+TEST(Metadata, setGetCompression) {
+    using CompressionValue = StandardMetadata<StandardMetadataType::COMPRESSION>::value;
+    ExtendableType myCompression{"bestest_compression_ever", 42};
+    std::vector<uint8_t> buffer(10000, 0);
+    const int expectedSize =
+            myCompression.name.length() + sizeof(int64_t) + sizeof(int64_t) + HeaderSize;
+    EXPECT_EQ(expectedSize, CompressionValue::encode(myCompression, buffer.data(), 0));
+    EXPECT_EQ(0, buffer[0]);
+    EXPECT_EQ(expectedSize, CompressionValue::encode(myCompression, buffer.data(), buffer.size()));
+    EXPECT_EQ(myCompression.name.length(), *reinterpret_cast<int64_t*>(SkipHeader(buffer).data()));
+    EXPECT_FALSE(CompressionValue::decode(buffer.data(), 0).has_value());
+    auto read = CompressionValue::decode(buffer.data(), buffer.size());
+    ASSERT_TRUE(read.has_value());
+    EXPECT_EQ(myCompression, read.value());
+}
+
+TEST(Metadata, setGetPlaneLayout) {
+    using PlaneLayoutValue = StandardMetadata<StandardMetadataType::PLANE_LAYOUTS>::value;
+
+    std::vector<PlaneLayout> layouts = fakePlaneLayouts();
+
+    std::vector<uint8_t> buffer(10000, 0);
     constexpr int componentSize = 8 + (4 * sizeof(int64_t));
     constexpr int firstLayoutSize = (8 + 1) * sizeof(int64_t) + (3 * componentSize);
     constexpr int secondLayoutSize = (8 + 1) * sizeof(int64_t);
-    constexpr int expectedSize = firstLayoutSize + secondLayoutSize + sizeof(int64_t);
+    constexpr int expectedSize = firstLayoutSize + secondLayoutSize + sizeof(int64_t) + HeaderSize;
     EXPECT_EQ(expectedSize, PlaneLayoutValue::encode(layouts, buffer.data(), 0));
     EXPECT_EQ(0, buffer[0]);
     EXPECT_EQ(expectedSize, PlaneLayoutValue::encode(layouts, buffer.data(), buffer.size()));
-    EXPECT_EQ(3, reinterpret_cast<int64_t*>(buffer.data())[1]);
-    EXPECT_EQ(8, reinterpret_cast<int64_t*>(buffer.data())[2]);
-    EXPECT_EQ(40, reinterpret_cast<int64_t*>(buffer.data())[4]);
-    EXPECT_EQ(31, reinterpret_cast<int64_t*>(buffer.data())[11]);
-    EXPECT_EQ(22, reinterpret_cast<int64_t*>(buffer.data())[15]);
-    EXPECT_EQ(10, reinterpret_cast<int64_t*>(buffer.data())[17]);
-    EXPECT_EQ(11, reinterpret_cast<int64_t*>(buffer.data())[18]);
+    int64_t* payload = reinterpret_cast<int64_t*>(SkipHeader(buffer).data());
+    EXPECT_EQ(3, payload[1]);
+    EXPECT_EQ(8, payload[2]);
+    EXPECT_EQ(40, payload[4]);
+    EXPECT_EQ(31, payload[11]);
+    EXPECT_EQ(22, payload[15]);
+    EXPECT_EQ(10, payload[17]);
+    EXPECT_EQ(11, payload[18]);
     EXPECT_FALSE(PlaneLayoutValue::decode(buffer.data(), 0).has_value());
     auto read = PlaneLayoutValue::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
@@ -178,15 +208,15 @@
 
 TEST(Metadata, setGetRects) {
     using RectsValue = StandardMetadata<StandardMetadataType::CROP>::value;
-    std::vector<uint8_t> buffer(500, 0);
+    std::vector<uint8_t> buffer(10000, 0);
     std::vector<Rect> cropRects{2};
     cropRects[0] = Rect{10, 11, 12, 13};
     cropRects[1] = Rect{20, 21, 22, 23};
 
-    constexpr int expectedSize = sizeof(int64_t) + (8 * sizeof(int32_t));
+    constexpr int expectedSize = sizeof(int64_t) + (8 * sizeof(int32_t)) + HeaderSize;
     EXPECT_EQ(expectedSize, RectsValue::encode(cropRects, buffer.data(), buffer.size()));
-    EXPECT_EQ(2, reinterpret_cast<int64_t*>(buffer.data())[0]);
-    EXPECT_EQ(10, reinterpret_cast<int32_t*>(buffer.data())[2]);
+    EXPECT_EQ(2, reinterpret_cast<int64_t*>(SkipHeader(buffer).data())[0]);
+    EXPECT_EQ(10, reinterpret_cast<int32_t*>(SkipHeader(buffer).data())[2]);
     auto read = RectsValue::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
     EXPECT_EQ(cropRects.size(), read->size());
@@ -203,8 +233,8 @@
     source.primaryGreen = XyColor{.3f, .4f};
     source.primaryBlue = XyColor{.5f, .6f};
 
-    constexpr int expectedSize = 10 * sizeof(float);
-    std::vector<uint8_t> buffer(500, 0);
+    constexpr int expectedSize = 10 * sizeof(float) + HeaderSize;
+    std::vector<uint8_t> buffer(10000, 0);
     EXPECT_EQ(expectedSize, Smpte2086Value::encode(source, buffer.data(), buffer.size()));
     auto read = Smpte2086Value::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
@@ -223,8 +253,8 @@
     source.maxFrameAverageLightLevel = 244.55f;
     source.maxContentLightLevel = 202.202f;
 
-    constexpr int expectedSize = 2 * sizeof(float);
-    std::vector<uint8_t> buffer(500, 0);
+    constexpr int expectedSize = 2 * sizeof(float) + HeaderSize;
+    std::vector<uint8_t> buffer(10000, 0);
     EXPECT_EQ(expectedSize, Cta861_3Value::encode(source, buffer.data(), buffer.size()));
     auto read = Cta861_3Value::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
@@ -240,14 +270,14 @@
 TEST(Metadata, setGetSmpte2094_10) {
     using SMPTE2094_10Value = StandardMetadata<StandardMetadataType::SMPTE2094_10>::value;
 
-    std::vector<uint8_t> buffer(500, 0);
+    std::vector<uint8_t> buffer(10000, 0);
     EXPECT_EQ(0, SMPTE2094_10Value::encode(std::nullopt, buffer.data(), buffer.size()));
     auto read = SMPTE2094_10Value::decode(buffer.data(), 0);
     ASSERT_TRUE(read.has_value());
     EXPECT_FALSE(read->has_value());
 
     const std::vector<uint8_t> emptyBuffer;
-    EXPECT_EQ(sizeof(int64_t),
+    EXPECT_EQ(sizeof(int64_t) + HeaderSize,
               SMPTE2094_10Value::encode(emptyBuffer, buffer.data(), buffer.size()));
     read = SMPTE2094_10Value::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
@@ -255,7 +285,7 @@
     EXPECT_EQ(0, read->value().size());
 
     const std::vector<uint8_t> simpleBuffer{0, 1, 2, 3, 4, 5};
-    EXPECT_EQ(sizeof(int64_t) + 6,
+    EXPECT_EQ(sizeof(int64_t) + 6 + HeaderSize,
               SMPTE2094_10Value::encode(simpleBuffer, buffer.data(), buffer.size()));
     read = SMPTE2094_10Value::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
@@ -266,7 +296,7 @@
 
 TEST(MetadataProvider, bufferId) {
     using BufferId = StandardMetadata<StandardMetadataType::BUFFER_ID>::value;
-    std::vector<uint8_t> buffer(500, 0);
+    std::vector<uint8_t> buffer(10000, 0);
     int result = provideStandardMetadata(StandardMetadataType::BUFFER_ID, buffer.data(),
                                          buffer.size(), []<StandardMetadataType T>(auto&& provide) {
                                              if constexpr (T == StandardMetadataType::BUFFER_ID) {
@@ -275,7 +305,7 @@
                                              return 0;
                                          });
 
-    EXPECT_EQ(8, result);
+    EXPECT_EQ(8 + HeaderSize, result);
     auto read = BufferId::decode(buffer.data(), buffer.size());
     EXPECT_EQ(42, read.value_or(0));
 }
@@ -312,3 +342,193 @@
     EXPECT_EQ(-AIMAPPER_ERROR_UNSUPPORTED, result)
             << "100 (out of range) should have resulted in UNSUPPORTED";
 }
+
+template <StandardMetadataType T>
+std::vector<uint8_t> encode(const typename StandardMetadata<T>::value_type& value) {
+    using Value = typename StandardMetadata<T>::value;
+
+    int desiredSize = Value::encode(value, nullptr, 0);
+    EXPECT_GE(desiredSize, 0);
+    std::vector<uint8_t> buffer;
+    buffer.resize(desiredSize);
+    EXPECT_EQ(desiredSize, Value::encode(value, buffer.data(), buffer.size()));
+    return buffer;
+}
+
+TEST(MetadataGralloc4Interop, BufferId) {
+    auto mpbuf = encode<StandardMetadataType::BUFFER_ID>(42);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeBufferId(42, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Name) {
+    auto mpbuf = encode<StandardMetadataType::NAME>("Hello, Interop!");
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeName("Hello, Interop!", &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Width) {
+    auto mpbuf = encode<StandardMetadataType::WIDTH>(128);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeWidth(128, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Height) {
+    auto mpbuf = encode<StandardMetadataType::HEIGHT>(64);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeHeight(64, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, LayerCount) {
+    auto mpbuf = encode<StandardMetadataType::LAYER_COUNT>(3);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeLayerCount(3, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, PixelFormatRequested) {
+    auto mpbuf = encode<StandardMetadataType::PIXEL_FORMAT_REQUESTED>(PixelFormat::RGBX_8888);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodePixelFormatRequested(
+                                hardware::graphics::common::V1_2::PixelFormat::RGBX_8888, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, PixelFormatFourcc) {
+    auto mpbuf = encode<StandardMetadataType::PIXEL_FORMAT_FOURCC>(DRM_FORMAT_ABGR8888);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodePixelFormatFourCC(DRM_FORMAT_ABGR8888, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, PixelFormatModifier) {
+    auto mpbuf = encode<StandardMetadataType::PIXEL_FORMAT_MODIFIER>(123456);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodePixelFormatModifier(123456, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Usage) {
+    auto mpbuf = encode<StandardMetadataType::USAGE>(BufferUsage::COMPOSER_OVERLAY);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR,
+              gralloc4::encodeUsage(
+                      static_cast<uint64_t>(
+                              hardware::graphics::common::V1_2::BufferUsage::COMPOSER_OVERLAY),
+                      &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, AllocationSize) {
+    auto mpbuf = encode<StandardMetadataType::ALLOCATION_SIZE>(10200);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeAllocationSize(10200, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, ProtectedContent) {
+    auto mpbuf = encode<StandardMetadataType::PROTECTED_CONTENT>(1);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeProtectedContent(1, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Compression) {
+    auto mpbuf = encode<StandardMetadataType::COMPRESSION>(
+            gralloc4::Compression_DisplayStreamCompression);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR,
+              gralloc4::encodeCompression(gralloc4::Compression_DisplayStreamCompression, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Interlaced) {
+    auto mpbuf = encode<StandardMetadataType::INTERLACED>(gralloc4::Interlaced_TopBottom);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeInterlaced(gralloc4::Interlaced_TopBottom, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, ChromeSitting) {
+    auto mpbuf =
+            encode<StandardMetadataType::CHROMA_SITING>(gralloc4::ChromaSiting_SitedInterstitial);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR,
+              gralloc4::encodeChromaSiting(gralloc4::ChromaSiting_SitedInterstitial, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, PlaneLayouts) {
+    auto mpbuf = encode<StandardMetadataType::PLANE_LAYOUTS>(fakePlaneLayouts());
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodePlaneLayouts(fakePlaneLayouts(), &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Crop) {
+    std::vector<Rect> cropRects{Rect{10, 11, 12, 13}, Rect{20, 21, 22, 23}};
+    auto mpbuf = encode<StandardMetadataType::CROP>(cropRects);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeCrop(cropRects, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Dataspace) {
+    auto mpbuf = encode<StandardMetadataType::DATASPACE>(Dataspace::DISPLAY_P3);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeDataspace(Dataspace::DISPLAY_P3, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, BlendMode) {
+    auto mpbuf = encode<StandardMetadataType::BLEND_MODE>(BlendMode::PREMULTIPLIED);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeBlendMode(BlendMode::PREMULTIPLIED, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Smpte2086) {
+    Smpte2086 hdrdata{XyColor{.1f, .2f}, XyColor{.3f, .4f}, XyColor{.5f, .6f},
+                      XyColor{.7f, .8f}, 452.889f,          12.335f};
+
+    auto mpbuf = encode<StandardMetadataType::SMPTE2086>(hdrdata);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeSmpte2086(hdrdata, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Cta861_3) {
+    Cta861_3 hdrdata{302.202f, 244.55f};
+    auto mpbuf = encode<StandardMetadataType::CTA861_3>(hdrdata);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeCta861_3(hdrdata, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Smpte2094_10) {
+    auto mpbuf = encode<StandardMetadataType::SMPTE2094_10>(std::nullopt);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeSmpte2094_10(std::nullopt, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+
+    std::vector<uint8_t> hdrdata{1, 2, 3, 4, 5, 6};
+    mpbuf = encode<StandardMetadataType::SMPTE2094_10>(hdrdata);
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeSmpte2094_10(hdrdata, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
+
+TEST(MetadataGralloc4Interop, Smpte2094_40) {
+    auto mpbuf = encode<StandardMetadataType::SMPTE2094_40>(std::nullopt);
+    hidl_vec<uint8_t> g4buf;
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeSmpte2094_40(std::nullopt, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+
+    std::vector<uint8_t> hdrdata{1, 2, 3, 4, 5, 6};
+    mpbuf = encode<StandardMetadataType::SMPTE2094_40>(hdrdata);
+    ASSERT_EQ(NO_ERROR, gralloc4::encodeSmpte2094_40(hdrdata, &g4buf));
+    EXPECT_EQ(mpbuf, g4buf);
+}
diff --git a/graphics/mapper/stable-c/implutils/include/android/hardware/graphics/mapper/utils/IMapperMetadataTypes.h b/graphics/mapper/stable-c/implutils/include/android/hardware/graphics/mapper/utils/IMapperMetadataTypes.h
index 7861af8..25af6d1 100644
--- a/graphics/mapper/stable-c/implutils/include/android/hardware/graphics/mapper/utils/IMapperMetadataTypes.h
+++ b/graphics/mapper/stable-c/implutils/include/android/hardware/graphics/mapper/utils/IMapperMetadataTypes.h
@@ -82,7 +82,12 @@
     explicit MetadataWriter(void* _Nullable destBuffer, size_t destBufferSize)
         : mDest(reinterpret_cast<uint8_t*>(destBuffer)), mSizeRemaining(destBufferSize) {}
 
-    int32_t desiredSize() const { return mDesiredSize; }
+    [[nodiscard]] int32_t desiredSize() const { return mDesiredSize; }
+
+    template <typename HEADER>
+    MetadataWriter& writeHeader() {
+        return write(HEADER::name).template write<int64_t>(HEADER::value);
+    }
 
     template <typename T, typename = std::enable_if_t<std::is_integral_v<T>>>
     MetadataWriter& write(T value) {
@@ -150,6 +155,18 @@
     [[nodiscard]] size_t remaining() const { return mSizeRemaining; }
     [[nodiscard]] bool ok() const { return mOk; }
 
+    template <typename HEADER>
+    MetadataReader& checkHeader() {
+        if (HEADER::name != readString()) {
+            mOk = false;
+        }
+        auto value = readInt<int64_t>();
+        if (!value || *value != HEADER::value) {
+            mOk = false;
+        }
+        return *this;
+    }
+
     template <typename T, typename = std::enable_if_t<std::is_integral_v<T>>>
     MetadataReader& read(T& dest) {
         if (const void* src = advance(sizeof(T))) {
@@ -228,27 +245,33 @@
     }
 };
 
-template <typename T, class Enable = void>
+template <typename HEADER, typename T, class Enable = void>
 struct MetadataValue {};
 
-template <typename T>
-struct MetadataValue<T, std::enable_if_t<std::is_integral_v<T>>> {
+template <typename HEADER, typename T>
+struct MetadataValue<HEADER, T, std::enable_if_t<std::is_integral_v<T>>> {
     [[nodiscard]] static int32_t encode(T value, void* _Nullable destBuffer,
                                         size_t destBufferSize) {
-        return MetadataWriter{destBuffer, destBufferSize}.write(value).desiredSize();
+        return MetadataWriter{destBuffer, destBufferSize}
+                .template writeHeader<HEADER>()
+                .write(value)
+                .desiredSize();
     }
 
     [[nodiscard]] static std::optional<T> decode(const void* _Nonnull metadata,
                                                  size_t metadataSize) {
-        return MetadataReader{metadata, metadataSize}.readInt<T>();
+        return MetadataReader{metadata, metadataSize}
+                .template checkHeader<HEADER>()
+                .template readInt<T>();
     }
 };
 
-template <typename T>
-struct MetadataValue<T, std::enable_if_t<std::is_enum_v<T>>> {
+template <typename HEADER, typename T>
+struct MetadataValue<HEADER, T, std::enable_if_t<std::is_enum_v<T>>> {
     [[nodiscard]] static int32_t encode(T value, void* _Nullable destBuffer,
                                         size_t destBufferSize) {
         return MetadataWriter{destBuffer, destBufferSize}
+                .template writeHeader<HEADER>()
                 .write(static_cast<std::underlying_type_t<T>>(value))
                 .desiredSize();
     }
@@ -256,47 +279,56 @@
     [[nodiscard]] static std::optional<T> decode(const void* _Nonnull metadata,
                                                  size_t metadataSize) {
         std::underlying_type_t<T> temp;
-        return MetadataReader{metadata, metadataSize}.read(temp).ok()
+        return MetadataReader{metadata, metadataSize}.template checkHeader<HEADER>().read(temp).ok()
                        ? std::optional<T>(static_cast<T>(temp))
                        : std::nullopt;
     }
 };
 
-template <>
-struct MetadataValue<std::string> {
+template <typename HEADER>
+struct MetadataValue<HEADER, std::string> {
     [[nodiscard]] static int32_t encode(const std::string_view& value, void* _Nullable destBuffer,
                                         size_t destBufferSize) {
-        return MetadataWriter{destBuffer, destBufferSize}.write(value).desiredSize();
+        return MetadataWriter{destBuffer, destBufferSize}
+                .template writeHeader<HEADER>()
+                .write(value)
+                .desiredSize();
     }
 
     [[nodiscard]] static std::optional<std::string> decode(const void* _Nonnull metadata,
                                                            size_t metadataSize) {
-        auto reader = MetadataReader{metadata, metadataSize};
+        auto reader = MetadataReader{metadata, metadataSize}.template checkHeader<HEADER>();
         auto result = reader.readString();
         return reader.ok() ? std::optional<std::string>{result} : std::nullopt;
     }
 };
 
-template <>
-struct MetadataValue<ExtendableType> {
+template <typename HEADER>
+struct MetadataValue<HEADER, ExtendableType> {
     static_assert(sizeof(int64_t) == sizeof(ExtendableType::value));
 
     [[nodiscard]] static int32_t encode(const ExtendableType& value, void* _Nullable destBuffer,
                                         size_t destBufferSize) {
-        return MetadataWriter{destBuffer, destBufferSize}.write(value).desiredSize();
+        return MetadataWriter{destBuffer, destBufferSize}
+                .template writeHeader<HEADER>()
+                .write(value)
+                .desiredSize();
     }
 
     [[nodiscard]] static std::optional<ExtendableType> decode(const void* _Nonnull metadata,
                                                               size_t metadataSize) {
-        return MetadataReader{metadata, metadataSize}.readExtendable();
+        return MetadataReader{metadata, metadataSize}
+                .template checkHeader<HEADER>()
+                .readExtendable();
     }
 };
 
-template <>
-struct MetadataValue<std::vector<PlaneLayout>> {
+template <typename HEADER>
+struct MetadataValue<HEADER, std::vector<PlaneLayout>> {
     [[nodiscard]] static int32_t encode(const std::vector<PlaneLayout>& values,
                                         void* _Nullable destBuffer, size_t destBufferSize) {
         MetadataWriter writer{destBuffer, destBufferSize};
+        writer.template writeHeader<HEADER>();
         writer.write<int64_t>(values.size());
         for (const auto& value : values) {
             writer.write<int64_t>(value.components.size());
@@ -321,13 +353,14 @@
     [[nodiscard]] static DecodeResult decode(const void* _Nonnull metadata, size_t metadataSize) {
         std::vector<PlaneLayout> values;
         MetadataReader reader{metadata, metadataSize};
+        reader.template checkHeader<HEADER>();
         auto numPlanes = reader.readInt<int64_t>().value_or(0);
         values.reserve(numPlanes);
         for (int i = 0; i < numPlanes && reader.ok(); i++) {
             PlaneLayout& value = values.emplace_back();
             auto numPlaneComponents = reader.readInt<int64_t>().value_or(0);
             value.components.reserve(numPlaneComponents);
-            for (int i = 0; i < numPlaneComponents && reader.ok(); i++) {
+            for (int j = 0; j < numPlaneComponents && reader.ok(); j++) {
                 PlaneLayoutComponent& component = value.components.emplace_back();
                 reader.read(component.type)
                         .read<int64_t>(component.offsetInBits)
@@ -346,11 +379,12 @@
     }
 };
 
-template <>
-struct MetadataValue<std::vector<Rect>> {
+template <typename HEADER>
+struct MetadataValue<HEADER, std::vector<Rect>> {
     [[nodiscard]] static int32_t encode(const std::vector<Rect>& value, void* _Nullable destBuffer,
                                         size_t destBufferSize) {
         MetadataWriter writer{destBuffer, destBufferSize};
+        writer.template writeHeader<HEADER>();
         writer.write<int64_t>(value.size());
         for (auto& rect : value) {
             writer.write<int32_t>(rect.left)
@@ -364,6 +398,7 @@
     using DecodeResult = std::optional<std::vector<Rect>>;
     [[nodiscard]] static DecodeResult decode(const void* _Nonnull metadata, size_t metadataSize) {
         MetadataReader reader{metadata, metadataSize};
+        reader.template checkHeader<HEADER>();
         std::vector<Rect> value;
         auto numRects = reader.readInt<int64_t>().value_or(0);
         value.reserve(numRects);
@@ -378,13 +413,14 @@
     }
 };
 
-template <>
-struct MetadataValue<std::optional<Smpte2086>> {
+template <typename HEADER>
+struct MetadataValue<HEADER, std::optional<Smpte2086>> {
     [[nodiscard]] static int32_t encode(const std::optional<Smpte2086>& optValue,
                                         void* _Nullable destBuffer, size_t destBufferSize) {
         if (optValue.has_value()) {
             const auto& value = *optValue;
             return MetadataWriter{destBuffer, destBufferSize}
+                    .template writeHeader<HEADER>()
                     .write(value.primaryRed)
                     .write(value.primaryGreen)
                     .write(value.primaryBlue)
@@ -404,6 +440,7 @@
         if (metadataSize > 0) {
             Smpte2086 value;
             MetadataReader reader{metadata, metadataSize};
+            reader.template checkHeader<HEADER>();
             reader.read(value.primaryRed)
                     .read(value.primaryGreen)
                     .read(value.primaryBlue)
@@ -420,13 +457,14 @@
     }
 };
 
-template <>
-struct MetadataValue<std::optional<Cta861_3>> {
+template <typename HEADER>
+struct MetadataValue<HEADER, std::optional<Cta861_3>> {
     [[nodiscard]] static int32_t encode(const std::optional<Cta861_3>& optValue,
                                         void* _Nullable destBuffer, size_t destBufferSize) {
         if (optValue.has_value()) {
             const auto& value = *optValue;
             return MetadataWriter{destBuffer, destBufferSize}
+                    .template writeHeader<HEADER>()
                     .write(value.maxContentLightLevel)
                     .write(value.maxFrameAverageLightLevel)
                     .desiredSize();
@@ -441,6 +479,7 @@
         std::optional<Cta861_3> optValue{std::nullopt};
         if (metadataSize > 0) {
             MetadataReader reader{metadata, metadataSize};
+            reader.template checkHeader<HEADER>();
             Cta861_3 value;
             reader.read(value.maxContentLightLevel).read(value.maxFrameAverageLightLevel);
             if (reader.ok()) {
@@ -453,14 +492,17 @@
     }
 };
 
-template <>
-struct MetadataValue<std::optional<std::vector<uint8_t>>> {
+template <typename HEADER>
+struct MetadataValue<HEADER, std::optional<std::vector<uint8_t>>> {
     [[nodiscard]] static int32_t encode(const std::optional<std::vector<uint8_t>>& value,
                                         void* _Nullable destBuffer, size_t destBufferSize) {
         if (!value.has_value()) {
             return 0;
         }
-        return MetadataWriter{destBuffer, destBufferSize}.write(*value).desiredSize();
+        return MetadataWriter{destBuffer, destBufferSize}
+                .template writeHeader<HEADER>()
+                .write(*value)
+                .desiredSize();
     }
 
     using DecodeResult = std::optional<std::optional<std::vector<uint8_t>>>;
@@ -468,6 +510,7 @@
         std::optional<std::vector<uint8_t>> optValue;
         if (metadataSize > 0) {
             MetadataReader reader{metadata, metadataSize};
+            reader.template checkHeader<HEADER>();
             auto value = reader.readBuffer();
             if (reader.ok()) {
                 optValue = std::move(value);
@@ -482,16 +525,20 @@
 template <StandardMetadataType>
 struct StandardMetadata {};
 
-#define DEFINE_TYPE(name, typeArg)                                                            \
-    template <>                                                                               \
-    struct StandardMetadata<StandardMetadataType::name> {                                     \
-        using value_type = typeArg;                                                           \
-        using value = MetadataValue<value_type>;                                              \
-        static_assert(                                                                        \
-                StandardMetadataType::name ==                                                 \
-                        ndk::internal::enum_values<StandardMetadataType>[static_cast<size_t>( \
-                                StandardMetadataType::name)],                                 \
-                "StandardMetadataType must have equivalent value to index");                  \
+#define DEFINE_TYPE(typeName, typeArg)                                                            \
+    template <>                                                                                   \
+    struct StandardMetadata<StandardMetadataType::typeName> {                                     \
+        using value_type = typeArg;                                                               \
+        struct Header {                                                                           \
+            static constexpr auto name = "android.hardware.graphics.common.StandardMetadataType"; \
+            static constexpr auto value = static_cast<int64_t>(StandardMetadataType::typeName);   \
+        };                                                                                        \
+        using value = MetadataValue<Header, value_type>;                                          \
+        static_assert(                                                                            \
+                StandardMetadataType::typeName ==                                                 \
+                        ndk::internal::enum_values<StandardMetadataType>[static_cast<size_t>(     \
+                                StandardMetadataType::typeName)],                                 \
+                "StandardMetadataType must have equivalent value to index");                      \
     }
 
 DEFINE_TYPE(BUFFER_ID, uint64_t);
diff --git a/graphics/mapper/stable-c/include/android/hardware/graphics/mapper/IMapper.h b/graphics/mapper/stable-c/include/android/hardware/graphics/mapper/IMapper.h
index f27b0f4..0f6d146 100644
--- a/graphics/mapper/stable-c/include/android/hardware/graphics/mapper/IMapper.h
+++ b/graphics/mapper/stable-c/include/android/hardware/graphics/mapper/IMapper.h
@@ -509,11 +509,12 @@
      * particular Metadata field.
      *
      * The framework will attempt to set the following StandardMetadataType
-     * values: DATASPACE, SMPTE2086, CTA861_3, SMPTE2094_40 and BLEND_MODE.
-     * We require everyone to support setting those fields. If a device's Composer
-     * implementation supports a field, it should be supported here. Over time these
-     * metadata fields will be moved out of Composer/BufferQueue/etc. and into the
-     * buffer's Metadata fields.
+     * values: DATASPACE, SMPTE2086, CTA861_3, and BLEND_MODE.
+     * We require everyone to support setting those fields. Framework will also attempt to set
+     * SMPTE2094_40 and SMPTE2094_10 if available, and it is required to support setting those
+     * if it is possible to get them. If a device's Composer implementation supports a field,
+     * it should be supported here. Over time these metadata fields will be moved out of
+     * Composer/BufferQueue/etc. and into the buffer's Metadata fields.
      *
      * @param buffer Buffer receiving desired metadata
      * @param metadataType MetadataType for the metadata value being set
@@ -546,11 +547,12 @@
      * particular Metadata field.
      *
      * The framework will attempt to set the following StandardMetadataType
-     * values: DATASPACE, SMPTE2086, CTA861_3, SMPTE2094_40 and BLEND_MODE.
-     * We require everyone to support setting those fields. If a device's Composer
-     * implementation supports a field, it should be supported here. Over time these
-     * metadata fields will be moved out of Composer/BufferQueue/etc. and into the
-     * buffer's Metadata fields.
+     * values: DATASPACE, SMPTE2086, CTA861_3, and BLEND_MODE.
+     * We require everyone to support setting those fields. Framework will also attempt to set
+     * SMPTE2094_40 and SMPTE2094_10 if available, and it is required to support setting those
+     * if it is possible to get them. If a device's Composer implementation supports a field,
+     * it should be supported here. Over time these metadata fields will be moved out of
+     * Composer/BufferQueue/etc. and into the buffer's Metadata fields.
      *
      * @param buffer Buffer receiving desired metadata
      * @param standardMetadataType StandardMetadataType for the metadata value being set
diff --git a/graphics/mapper/stable-c/vts/VtsHalGraphicsMapperStableC_TargetTest.cpp b/graphics/mapper/stable-c/vts/VtsHalGraphicsMapperStableC_TargetTest.cpp
index 6ab11a3..85246ee 100644
--- a/graphics/mapper/stable-c/vts/VtsHalGraphicsMapperStableC_TargetTest.cpp
+++ b/graphics/mapper/stable-c/vts/VtsHalGraphicsMapperStableC_TargetTest.cpp
@@ -24,6 +24,7 @@
 #include <aidl/android/hardware/graphics/common/BufferUsage.h>
 #include <aidl/android/hardware/graphics/common/PixelFormat.h>
 #include <aidlcommonsupport/NativeHandle.h>
+#include <android/binder_enums.h>
 #include <android/binder_manager.h>
 #include <android/dlext.h>
 #include <android/hardware/graphics/mapper/IMapper.h>
@@ -66,6 +67,24 @@
     int64_t verticalSubSampling;
 };
 
+constexpr const char* STANDARD_METADATA_NAME =
+        "android.hardware.graphics.common.StandardMetadataType";
+
+static bool isStandardMetadata(AIMapper_MetadataType metadataType) {
+    return strcmp(STANDARD_METADATA_NAME, metadataType.name) == 0;
+}
+
+static std::string toString(const std::vector<StandardMetadataType> types) {
+    std::stringstream buf;
+    buf << "[";
+    for (auto type : types) {
+        buf << toString(type) << ", ";
+    }
+    buf.seekp(-2, buf.cur);
+    buf << "]";
+    return buf.str();
+}
+
 class BufferHandle {
     AIMapper* mIMapper;
     buffer_handle_t mHandle = nullptr;
@@ -215,7 +234,7 @@
             sizeRequired = mapper()->v5.getStandardMetadata(bufferHandle, static_cast<int64_t>(T),
                                                             buffer.data(), buffer.size());
         }
-        if (sizeRequired < 0 || sizeRequired >= buffer.size()) {
+        if (sizeRequired < 0 || sizeRequired > buffer.size()) {
             ADD_FAILURE() << "getStandardMetadata failed, received " << sizeRequired
                           << " with buffer size " << buffer.size();
             // Generate a fail type
@@ -1533,8 +1552,187 @@
     auto bufferHandle = buffer->import();
     ASSERT_TRUE(bufferHandle);
     auto value = getStandardMetadata<StandardMetadataType::SMPTE2094_40>(*bufferHandle);
-    ASSERT_TRUE(value.has_value());
-    EXPECT_FALSE(value->has_value());
+    if (value.has_value()) {
+        EXPECT_FALSE(value->has_value());
+    }
+}
+
+TEST_P(GraphicsMapperStableCTests, SupportsRequiredGettersSetters) {
+    auto buffer = allocateGeneric();
+    ASSERT_TRUE(buffer);
+    auto bufferHandle = buffer->import();
+    ASSERT_TRUE(bufferHandle);
+    const AIMapper_MetadataTypeDescription* descriptions = nullptr;
+    size_t descriptionCount = 0;
+    ASSERT_EQ(AIMAPPER_ERROR_NONE,
+              mapper()->v5.listSupportedMetadataTypes(&descriptions, &descriptionCount));
+    std::vector<StandardMetadataType> requiredGetters = {
+            StandardMetadataType::BUFFER_ID,
+            StandardMetadataType::NAME,
+            StandardMetadataType::WIDTH,
+            StandardMetadataType::HEIGHT,
+            StandardMetadataType::LAYER_COUNT,
+            StandardMetadataType::PIXEL_FORMAT_REQUESTED,
+            StandardMetadataType::PIXEL_FORMAT_FOURCC,
+            StandardMetadataType::PIXEL_FORMAT_MODIFIER,
+            StandardMetadataType::USAGE,
+            StandardMetadataType::ALLOCATION_SIZE,
+            StandardMetadataType::PROTECTED_CONTENT,
+            StandardMetadataType::COMPRESSION,
+            StandardMetadataType::INTERLACED,
+            StandardMetadataType::CHROMA_SITING,
+            StandardMetadataType::PLANE_LAYOUTS,
+            StandardMetadataType::CROP,
+            StandardMetadataType::DATASPACE,
+            StandardMetadataType::BLEND_MODE,
+            StandardMetadataType::SMPTE2086,
+            StandardMetadataType::CTA861_3,
+    };
+
+    std::vector<StandardMetadataType> requiredSetters = {
+            StandardMetadataType::DATASPACE,
+            StandardMetadataType::BLEND_MODE,
+            StandardMetadataType::SMPTE2086,
+            StandardMetadataType::CTA861_3,
+    };
+
+    for (int i = 0; i < descriptionCount; i++) {
+        const auto& it = descriptions[i];
+        if (isStandardMetadata(it.metadataType)) {
+            EXPECT_GT(it.metadataType.value, static_cast<int64_t>(StandardMetadataType::INVALID));
+            EXPECT_LT(it.metadataType.value,
+                      ndk::internal::enum_values<StandardMetadataType>.size());
+
+            if (it.isGettable) {
+                std::erase(requiredGetters,
+                           static_cast<StandardMetadataType>(it.metadataType.value));
+            }
+            if (it.isSettable) {
+                std::erase(requiredSetters,
+                           static_cast<StandardMetadataType>(it.metadataType.value));
+            }
+        } else {
+            EXPECT_NE(nullptr, it.description) << "Non-standard metadata must have a description";
+            int len = strlen(it.description);
+            EXPECT_GE(len, 0) << "Non-standard metadata must have a description";
+        }
+    }
+
+    EXPECT_EQ(0, requiredGetters.size()) << "Missing required getters" << toString(requiredGetters);
+    EXPECT_EQ(0, requiredSetters.size()) << "Missing required setters" << toString(requiredSetters);
+}
+
+/*
+ * Test that verifies that if the optional StandardMetadataTypes have getters, they have
+ * the required setters as well
+ */
+TEST_P(GraphicsMapperStableCTests, CheckRequiredSettersIfHasGetters) {
+    auto buffer = allocateGeneric();
+    ASSERT_TRUE(buffer);
+    auto bufferHandle = buffer->import();
+    ASSERT_TRUE(bufferHandle);
+    const AIMapper_MetadataTypeDescription* descriptions = nullptr;
+    size_t descriptionCount = 0;
+    ASSERT_EQ(AIMAPPER_ERROR_NONE,
+              mapper()->v5.listSupportedMetadataTypes(&descriptions, &descriptionCount));
+
+    for (int i = 0; i < descriptionCount; i++) {
+        const auto& it = descriptions[i];
+        if (isStandardMetadata(it.metadataType)) {
+            const auto type = static_cast<StandardMetadataType>(it.metadataType.value);
+            switch (type) {
+                case StandardMetadataType::SMPTE2094_10:
+                case StandardMetadataType::SMPTE2094_40:
+                    if (it.isGettable) {
+                        EXPECT_TRUE(it.isSettable)
+                                << "Type " << toString(type) << " must be settable if gettable";
+                    }
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+}
+
+TEST_P(GraphicsMapperStableCTests, ListSupportedWorks) {
+    auto buffer = allocateGeneric();
+    ASSERT_TRUE(buffer);
+    auto bufferHandle = buffer->import();
+    ASSERT_TRUE(bufferHandle);
+    const AIMapper_MetadataTypeDescription* descriptions = nullptr;
+    size_t descriptionCount = 0;
+    ASSERT_EQ(AIMAPPER_ERROR_NONE,
+              mapper()->v5.listSupportedMetadataTypes(&descriptions, &descriptionCount));
+
+    std::vector<uint8_t> metadataBuffer;
+    auto get = [&](AIMapper_MetadataType metadataType) -> int32_t {
+        int32_t size = mapper()->v5.getMetadata(*bufferHandle, metadataType, nullptr, 0);
+        if (size >= 0) {
+            metadataBuffer.resize(size);
+            size = mapper()->v5.getMetadata(*bufferHandle, metadataType, metadataBuffer.data(),
+                                            metadataBuffer.size());
+            EXPECT_EQ(size, metadataBuffer.size());
+        }
+        return size;
+    };
+
+    for (int i = 0; i < descriptionCount; i++) {
+        const auto& it = descriptions[i];
+        if (!isStandardMetadata(it.metadataType)) {
+            continue;
+        }
+        if (!it.isGettable) {
+            EXPECT_FALSE(it.isSettable)
+                    << "StandardMetadata that isn't gettable must not be settable";
+            continue;
+        }
+        EXPECT_GE(get(it.metadataType), 0)
+                << "Get failed for claimed supported getter of "
+                << toString(static_cast<StandardMetadataType>(it.metadataType.value));
+        if (it.isSettable) {
+            EXPECT_EQ(AIMAPPER_ERROR_NONE,
+                      mapper()->v5.setMetadata(*bufferHandle, it.metadataType,
+                                               metadataBuffer.data(), metadataBuffer.size()))
+                    << "Failed to set metadata for "
+                    << toString(static_cast<StandardMetadataType>(it.metadataType.value));
+        }
+    }
+}
+
+TEST_P(GraphicsMapperStableCTests, GetMetadataBadValue) {
+    auto get = [this](StandardMetadataType type) -> AIMapper_Error {
+        // This is a _Nonnull parameter, but this is enough obfuscation to fool the linter
+        buffer_handle_t buffer = nullptr;
+        int32_t ret =
+                mapper()->v5.getStandardMetadata(buffer, static_cast<int64_t>(type), nullptr, 0);
+        return (ret < 0) ? (AIMapper_Error)-ret : AIMAPPER_ERROR_NONE;
+    };
+
+    for (auto type : ndk::enum_range<StandardMetadataType>()) {
+        if (type == StandardMetadataType::INVALID) {
+            continue;
+        }
+        EXPECT_EQ(AIMAPPER_ERROR_BAD_BUFFER, get(type)) << "Wrong error for " << toString(type);
+    }
+}
+
+TEST_P(GraphicsMapperStableCTests, GetUnsupportedMetadata) {
+    auto buffer = allocateGeneric();
+    ASSERT_TRUE(buffer);
+    auto bufferHandle = buffer->import();
+    ASSERT_TRUE(bufferHandle);
+
+    int result = mapper()->v5.getMetadata(*bufferHandle, {"Fake", 1}, nullptr, 0);
+    EXPECT_EQ(AIMAPPER_ERROR_UNSUPPORTED, -result);
+
+    result = mapper()->v5.getStandardMetadata(
+            *bufferHandle, static_cast<int64_t>(StandardMetadataType::INVALID), nullptr, 0);
+    EXPECT_EQ(AIMAPPER_ERROR_UNSUPPORTED, -result);
+
+    constexpr int64_t unknownStandardType = ndk::internal::enum_values<StandardMetadataType>.size();
+    result = mapper()->v5.getStandardMetadata(*bufferHandle, unknownStandardType, nullptr, 0);
+    EXPECT_EQ(AIMAPPER_ERROR_UNSUPPORTED, -result);
 }
 
 std::vector<std::tuple<std::string, std::shared_ptr<IAllocator>>> getIAllocatorsAtLeastVersion(
diff --git a/media/bufferpool/aidl/Android.bp b/media/bufferpool/aidl/Android.bp
new file mode 100644
index 0000000..68ac489
--- /dev/null
+++ b/media/bufferpool/aidl/Android.bp
@@ -0,0 +1,44 @@
+// 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.
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+aidl_interface {
+    name: "android.hardware.media.bufferpool2",
+    vendor_available: true,
+    srcs: ["android/hardware/media/bufferpool2/*.aidl"],
+    imports: [
+        "android.hardware.common-V2",
+        "android.hardware.common.fmq-V1",
+    ],
+    stability: "vintf",
+    backend: {
+        cpp: {
+            enabled: false,
+        },
+        java: {
+            enabled: false,
+        },
+        ndk: {
+            enabled: true,
+        },
+    },
+}
diff --git a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/Buffer.aidl b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/Buffer.aidl
new file mode 100644
index 0000000..4ea0bba
--- /dev/null
+++ b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/Buffer.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.bufferpool2;
+@VintfStability
+parcelable Buffer {
+  int id;
+  android.hardware.common.NativeHandle buffer;
+}
diff --git a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/BufferInvalidationMessage.aidl b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/BufferInvalidationMessage.aidl
new file mode 100644
index 0000000..181286c
--- /dev/null
+++ b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/BufferInvalidationMessage.aidl
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.bufferpool2;
+@FixedSize @VintfStability
+parcelable BufferInvalidationMessage {
+  int messageId;
+  int fromBufferId;
+  int toBufferId;
+}
diff --git a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/BufferStatus.aidl b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/BufferStatus.aidl
new file mode 100644
index 0000000..13174ff
--- /dev/null
+++ b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/BufferStatus.aidl
@@ -0,0 +1,47 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.bufferpool2;
+@Backing(type="int") @VintfStability
+enum BufferStatus {
+  NOT_USED = 0,
+  USED = 1,
+  TRANSFER_TO = 2,
+  TRANSFER_FROM = 3,
+  TRANSFER_TIMEOUT = 4,
+  TRANSFER_LOST = 5,
+  TRANSFER_FETCH = 6,
+  TRANSFER_OK = 7,
+  TRANSFER_ERROR = 8,
+  INVALIDATION_ACK = 9,
+}
diff --git a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/BufferStatusMessage.aidl b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/BufferStatusMessage.aidl
new file mode 100644
index 0000000..7e79a36
--- /dev/null
+++ b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/BufferStatusMessage.aidl
@@ -0,0 +1,43 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.bufferpool2;
+@FixedSize @VintfStability
+parcelable BufferStatusMessage {
+  long transactionId;
+  int bufferId;
+  android.hardware.media.bufferpool2.BufferStatus status;
+  long connectionId;
+  long targetConnectionId;
+  long timestampUs;
+}
diff --git a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IAccessor.aidl b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IAccessor.aidl
new file mode 100644
index 0000000..4053797
--- /dev/null
+++ b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IAccessor.aidl
@@ -0,0 +1,46 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.bufferpool2;
+@VintfStability
+interface IAccessor {
+  android.hardware.media.bufferpool2.IAccessor.ConnectionInfo connect(in android.hardware.media.bufferpool2.IObserver observer);
+  @VintfStability
+  parcelable ConnectionInfo {
+    android.hardware.media.bufferpool2.IConnection connection;
+    long connectionId;
+    int msgId;
+    android.hardware.common.fmq.MQDescriptor<android.hardware.media.bufferpool2.BufferStatusMessage,android.hardware.common.fmq.SynchronizedReadWrite> toFmqDesc;
+    android.hardware.common.fmq.MQDescriptor<android.hardware.media.bufferpool2.BufferInvalidationMessage,android.hardware.common.fmq.UnsynchronizedWrite> fromFmqDesc;
+  }
+}
diff --git a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IClientManager.aidl b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IClientManager.aidl
new file mode 100644
index 0000000..54896d4
--- /dev/null
+++ b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IClientManager.aidl
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.bufferpool2;
+@VintfStability
+interface IClientManager {
+  long registerSender(in android.hardware.media.bufferpool2.IAccessor bufferPool);
+}
diff --git a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IConnection.aidl b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IConnection.aidl
new file mode 100644
index 0000000..300fcba
--- /dev/null
+++ b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IConnection.aidl
@@ -0,0 +1,46 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.bufferpool2;
+@VintfStability
+interface IConnection {
+  android.hardware.media.bufferpool2.IConnection.FetchResult[] fetch(in android.hardware.media.bufferpool2.IConnection.FetchInfo[] fetchInfos);
+  parcelable FetchInfo {
+    long transactionId;
+    int bufferId;
+  }
+  union FetchResult {
+    android.hardware.media.bufferpool2.Buffer buffer;
+    android.hardware.media.bufferpool2.ResultStatus failure;
+  }
+}
diff --git a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IObserver.aidl b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IObserver.aidl
new file mode 100644
index 0000000..2d8cffe
--- /dev/null
+++ b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/IObserver.aidl
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.bufferpool2;
+@VintfStability
+interface IObserver {
+  oneway void onMessage(in long connectionId, in int msgId);
+}
diff --git a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/ResultStatus.aidl b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/ResultStatus.aidl
new file mode 100644
index 0000000..7370998
--- /dev/null
+++ b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/ResultStatus.aidl
@@ -0,0 +1,43 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.bufferpool2;
+@VintfStability
+parcelable ResultStatus {
+  int resultStatus;
+  const int OK = 0;
+  const int NO_MEMORY = 1;
+  const int ALREADY_EXISTS = 2;
+  const int NOT_FOUND = 3;
+  const int CRITICAL_ERROR = 4;
+}
diff --git a/media/bufferpool/aidl/android/hardware/media/bufferpool2/Buffer.aidl b/media/bufferpool/aidl/android/hardware/media/bufferpool2/Buffer.aidl
new file mode 100644
index 0000000..976f674
--- /dev/null
+++ b/media/bufferpool/aidl/android/hardware/media/bufferpool2/Buffer.aidl
@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.bufferpool2;
+
+import android.hardware.common.NativeHandle;
+
+/**
+ * Generic buffer for fast recycling for media/stagefright.
+ *
+ * During media pipeline buffer references are created, shared and
+ * destroyed frequently. The underlying buffers are allocated on demand
+ * by a buffer pool, and are recycled to the buffer pool when they are
+ * no longer referenced by the clients.
+ *
+ * E.g. ion or gralloc buffer
+ */
+@VintfStability
+parcelable Buffer {
+    int id;
+    NativeHandle buffer;
+}
diff --git a/media/bufferpool/aidl/android/hardware/media/bufferpool2/BufferInvalidationMessage.aidl b/media/bufferpool/aidl/android/hardware/media/bufferpool2/BufferInvalidationMessage.aidl
new file mode 100644
index 0000000..ad03cd5
--- /dev/null
+++ b/media/bufferpool/aidl/android/hardware/media/bufferpool2/BufferInvalidationMessage.aidl
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.bufferpool2;
+
+/*
+ * Buffer pool sends a buffer invalidation message to clients in order to
+ * ensure fast reclamation of the buffers. Buffer pool implementation on
+ * clients must release the invalidated buffers right away after finishing
+ * the use of buffers upon receiving a buffer invalidation message.
+ * Users cannot delay or control timing of the handling/reception of
+ * invalidation messages. Buffer pool implementation must guarantee timely
+ * handling of invalidation messages.
+ */
+@VintfStability
+@FixedSize
+parcelable BufferInvalidationMessage {
+    int messageId;
+    /**
+     * Buffers from fromBufferId to toBufferId must be invalidated.
+     * fromBufferId is inclusive, but toBufferId is not inclusive.
+     * If fromBufferId > toBufferID, wrap happens. In that case
+     * the wrap is based on UINT32_MAX.
+     */
+    int fromBufferId;
+    int toBufferId;
+}
diff --git a/media/bufferpool/aidl/android/hardware/media/bufferpool2/BufferStatus.aidl b/media/bufferpool/aidl/android/hardware/media/bufferpool2/BufferStatus.aidl
new file mode 100644
index 0000000..b63aee2
--- /dev/null
+++ b/media/bufferpool/aidl/android/hardware/media/bufferpool2/BufferStatus.aidl
@@ -0,0 +1,68 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.bufferpool2;
+
+/**
+ * Buffer ownership status for the specified client.
+ * Buffer transfer status for the specified buffer transafer transaction.
+ * BufferStatus is posted along with BufferStatusMessage from a client to
+ * the buffer pool for synchronization after status change.
+ */
+@VintfStability
+@Backing(type="int")
+enum BufferStatus {
+    /**
+     * No longer used by the specified client.
+     */
+    NOT_USED = 0,
+    /**
+     * Buffer is acquired by the specified client.
+     */
+    USED = 1,
+    /**
+     * Buffer is sent by the specified client.
+     */
+    TRANSFER_TO = 2,
+    /**
+     * Buffer transfer is acked by the receiver client.
+     */
+    TRANSFER_FROM = 3,
+    /**
+     * Buffer transfer is timed out by receiver client.
+     */
+    TRANSFER_TIMEOUT = 4,
+    /**
+     * Buffer transfer is not acked by the receiver.
+     */
+    TRANSFER_LOST = 5,
+    /**
+     * Buffer fetch request from the client.
+     */
+    TRANSFER_FETCH = 6,
+    /**
+     * Buffer transaction succeeded.
+     */
+    TRANSFER_OK = 7,
+    /**
+     * Buffer transaction failure.
+     */
+    TRANSFER_ERROR = 8,
+    /**
+     * Buffer invalidation ack.
+     */
+    INVALIDATION_ACK = 9,
+}
diff --git a/media/bufferpool/aidl/android/hardware/media/bufferpool2/BufferStatusMessage.aidl b/media/bufferpool/aidl/android/hardware/media/bufferpool2/BufferStatusMessage.aidl
new file mode 100644
index 0000000..e3fd8f0
--- /dev/null
+++ b/media/bufferpool/aidl/android/hardware/media/bufferpool2/BufferStatusMessage.aidl
@@ -0,0 +1,50 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.bufferpool2;
+
+import android.hardware.media.bufferpool2.BufferStatus;
+
+/**
+ * Buffer ownership status change message. This message is
+ * sent via fmq to the buffer pool from client processes.
+ */
+@VintfStability
+@FixedSize
+parcelable BufferStatusMessage {
+    /**
+     * Transaction Id = (SenderId : sender local transaction Id)
+     * Transaction Id is created from sender and posted via fmq within
+     * TRANSFER_TO message.
+     */
+    long transactionId;
+    int bufferId;
+    BufferStatus status;
+    /**
+     * Used by the buffer pool, not by client.
+     */
+    long connectionId;
+    /**
+     * Valid only when TRANSFER_TO is posted.
+     */
+    long targetConnectionId;
+    /**
+     * Used by the buffer pool, not by client.
+     * Monotonic timestamp in Us since fixed point in time as decided
+     * by the sender of the message
+     */
+    long timestampUs;
+}
diff --git a/media/bufferpool/aidl/android/hardware/media/bufferpool2/IAccessor.aidl b/media/bufferpool/aidl/android/hardware/media/bufferpool2/IAccessor.aidl
new file mode 100644
index 0000000..0fa5961
--- /dev/null
+++ b/media/bufferpool/aidl/android/hardware/media/bufferpool2/IAccessor.aidl
@@ -0,0 +1,106 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.bufferpool2;
+
+import android.hardware.common.fmq.MQDescriptor;
+import android.hardware.common.fmq.SynchronizedReadWrite;
+import android.hardware.common.fmq.UnsynchronizedWrite;
+
+
+import android.hardware.media.bufferpool2.BufferInvalidationMessage;
+import android.hardware.media.bufferpool2.BufferStatusMessage;
+import android.hardware.media.bufferpool2.IConnection;
+import android.hardware.media.bufferpool2.IObserver;
+
+/**
+ * IAccessor creates IConnection which is used from IClientManager in order to
+ * use functionality of the specified buffer pool.
+ */
+@VintfStability
+interface IAccessor {
+    @VintfStability
+     /**
+     * Connection information between the bufferpool process and the receiver
+     * process. The information is used from the receiver process in order to
+     * receive buffers from the bufferpool process.
+     */
+    parcelable ConnectionInfo {
+        /**
+        * The interface to get shared buffers from the bufferpool.
+        */
+        IConnection connection;
+        /**
+         * The identifier for a (sender/receiver) pair during buffer transfer.
+         * This is system wide unique.
+         */
+        long connectionId;
+        /**
+         * Id of the most recent message from bufferpool. This is monotonic.
+         */
+        int msgId;
+        /**
+         * The FMQ descriptor for sending buffer status messages back to bufferpool
+         */
+        MQDescriptor<BufferStatusMessage, SynchronizedReadWrite> toFmqDesc;
+        /**
+         * The FMQ descriptor for receiving buffer invalidation messages from bufferpool
+         */
+        MQDescriptor<BufferInvalidationMessage, UnsynchronizedWrite> fromFmqDesc;
+    }
+
+    /**
+     * Registers a new client and creates IConnection to the buffer pool for
+     * the client. IConnection and FMQ are used by IClientManager in order to
+     * communicate with the buffer pool. Via FMQ IClientManager sends
+     * BufferStatusMessage(s) to the buffer pool.
+     *
+     * FMQ is used to send buffer ownership status changes to a buffer pool
+     * from a buffer pool client. A buffer pool synchronizes FMQ messages when
+     * there is an aidl request from the clients. Every client has its own
+     * connection and FMQ to communicate with the buffer pool. So sending an
+     * FMQ message on behalf of other clients is not possible.
+     *
+     * FMQ messages are sent when a buffer is acquired or released. Also, FMQ
+     * messages are sent when a buffer is transferred from a client to another
+     * client. FMQ has its own ID from a buffer pool. A client is specified
+     * with the ID.
+     *
+     * To transfer a buffer, a sender must send an FMQ message. The message
+     * must include a receiver's ID and a transaction ID. A receiver must send
+     * the transaction ID to fetch a buffer from a buffer pool. Since the
+     * sender already registered the receiver via an FMQ message, The buffer
+     * pool must verify the receiver with the transaction ID. In order to
+     * prevent faking a receiver, a connection to a buffer pool from client is
+     * made and kept private. Also part of transaction ID is a sender ID in
+     * order to prevent fake transactions from other clients. This must be
+     * verified with an FMQ message from a buffer pool.
+     *
+     * @param observer The buffer pool event observer from the client.
+     *     Observer is provided to ensure FMQ messages are processed even when
+     *     client processes are idle. Buffer invalidation caused by
+     *     reconfiguration does not call observer. Buffer invalidation caused
+     *     by termination of pipeline call observer in order to ensure
+     *     invalidation is done after pipeline completion.
+     * @return ConnectionInfo The information regarding the established
+     *     connection
+     * @@throws ServiceSpecificException with one of the following values:
+     *     ResultStatus::NO_MEMORY        - Memory allocation failure occurred.
+     *     ResultStatus::ALREADY_EXISTS   - A connection was already made.
+     *     ResultStatus::CRITICAL_ERROR   - Other errors.
+     */
+    ConnectionInfo connect(in IObserver observer);
+}
diff --git a/media/bufferpool/aidl/android/hardware/media/bufferpool2/IClientManager.aidl b/media/bufferpool/aidl/android/hardware/media/bufferpool2/IClientManager.aidl
new file mode 100644
index 0000000..bf36e25
--- /dev/null
+++ b/media/bufferpool/aidl/android/hardware/media/bufferpool2/IClientManager.aidl
@@ -0,0 +1,46 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.bufferpool2;
+
+import android.hardware.media.bufferpool2.IAccessor;
+
+/**
+ * IClientManager manages IConnection(s) inside a process. A locally
+ * created IConnection represents a communication node(receiver) with the
+ * specified buffer pool(IAccessor).
+ * IConnection(s) are not exposed to other processes(IClientManager).
+ * IClientManager instance must be unique within a process.
+ */
+@VintfStability
+interface IClientManager {
+    /**
+     * Sets up a buffer receiving communication node for the specified
+     * buffer pool. A manager must create a IConnection to the buffer
+     * pool if it does not already have a connection.
+     *
+     * @param bufferPool a buffer pool which is specified with the IAccessor.
+     *     The specified buffer pool is the owner of received buffers.
+     * @return the Id of the communication node to the buffer pool.
+     *     This id is used in FMQ to notify IAccessor that a buffer has been
+     *     sent to that connection during transfers.
+     * @throws ServiceSpecificException with one of the following values:
+     *     ResultStatus::NO_MEMORY        - Memory allocation failure occurred.
+     *     ResultStatus::ALREADY_EXISTS   - A sender was registered already.
+     *     ResultStatus::CRITICAL_ERROR   - Other errors.
+     */
+    long registerSender(in IAccessor bufferPool);
+}
diff --git a/media/bufferpool/aidl/android/hardware/media/bufferpool2/IConnection.aidl b/media/bufferpool/aidl/android/hardware/media/bufferpool2/IConnection.aidl
new file mode 100644
index 0000000..d869f47
--- /dev/null
+++ b/media/bufferpool/aidl/android/hardware/media/bufferpool2/IConnection.aidl
@@ -0,0 +1,73 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.bufferpool2;
+
+import android.hardware.media.bufferpool2.Buffer;
+import android.hardware.media.bufferpool2.ResultStatus;
+
+/**
+ * A connection to a buffer pool which handles requests from a buffer pool
+ * client. The connection must be made in order to receive buffers from
+ * other buffer pool clients.
+ */
+@VintfStability
+interface IConnection {
+
+    parcelable FetchInfo {
+        /**
+         * Unique transaction id for buffer transferring.
+         */
+        long transactionId;
+        /**
+         * Id of the buffer to be fetched.
+         */
+        int bufferId;
+    }
+
+    union FetchResult {
+        /**
+         * The fetched buffer on successful fetch.
+         */
+        Buffer buffer;
+        /**
+         * The reason of the request failure. Possible values are below.
+         *
+         * ResultStatus::NOT_FOUND        - A buffer was not found due to invalidation.
+         * ResultStatus::CRITICAL_ERROR   - Other errors.
+         */
+        ResultStatus failure;
+    }
+
+    /**
+     * Retrieves buffers using an array of FetchInfo.
+     * Each element of FetchInfo array contains a bufferId and a transactionId
+     * for each buffer to fetch. The method must be called from receiving side of buffers
+     * during transferring only when the specified buffer is neither cached nor used.
+     *
+     * The method could have partial failures, in the case other successfully fetched buffers
+     * will be in returned result along with the failures. The order of the returned result
+     * will be the same with the fetchInfos.
+     *
+     * @param fetchInfos information of buffers to fetch
+     * @return Requested buffers.
+     *         If there are failures, reasons of failures are also included.
+     * @throws ServiceSpecificException with one of the following values:
+     *     ResultStatus::NO_MEMORY        - Memory allocation failure occurred.
+     *     ResultStatus::CRITICAL_ERROR   - Other errors.
+     */
+    FetchResult[] fetch(in FetchInfo[] fetchInfos);
+}
diff --git a/media/bufferpool/aidl/android/hardware/media/bufferpool2/IObserver.aidl b/media/bufferpool/aidl/android/hardware/media/bufferpool2/IObserver.aidl
new file mode 100644
index 0000000..07d1c3e
--- /dev/null
+++ b/media/bufferpool/aidl/android/hardware/media/bufferpool2/IObserver.aidl
@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.bufferpool2;
+
+/**
+ * IObserver listens on notifications from the buffer pool. On receiving
+ * notifications, FMQ messages from the specific buffer pool which are already
+ * in the FMQ are processed.
+ */
+@VintfStability
+interface IObserver {
+    /**
+     * The specific buffer pool sent a message to the client. Calling this
+     * method from the buffer pool enforces a buffer pool client process the
+     * message.
+     *
+     * @param connectionId the connection Id of the specific buffer pool client
+     * @param msgId Id of the most recent message
+     */
+    oneway void onMessage(in long connectionId, in int msgId);
+}
diff --git a/media/bufferpool/aidl/android/hardware/media/bufferpool2/ResultStatus.aidl b/media/bufferpool/aidl/android/hardware/media/bufferpool2/ResultStatus.aidl
new file mode 100644
index 0000000..162f9a7
--- /dev/null
+++ b/media/bufferpool/aidl/android/hardware/media/bufferpool2/ResultStatus.aidl
@@ -0,0 +1,28 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.bufferpool2;
+
+@VintfStability
+parcelable ResultStatus {
+    const int OK = 0;
+    const int NO_MEMORY = 1;
+    const int ALREADY_EXISTS = 2;
+    const int NOT_FOUND = 3;
+    const int CRITICAL_ERROR = 4;
+
+    int resultStatus;
+}
diff --git a/media/c2/aidl/Android.bp b/media/c2/aidl/Android.bp
new file mode 100644
index 0000000..3393ede
--- /dev/null
+++ b/media/c2/aidl/Android.bp
@@ -0,0 +1,38 @@
+// This is the expected build file, but it may not be right in all cases
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+aidl_interface {
+    name: "android.hardware.media.c2",
+    vendor_available: true,
+    srcs: ["android/hardware/media/c2/*.aidl"],
+    include_dirs: [
+        "frameworks/native/aidl/gui",
+    ],
+    imports: [
+        "android.hardware.common-V2",
+        "android.hardware.media.bufferpool2-V1",
+    ],
+    stability: "vintf",
+    backend: {
+        cpp: {
+            enabled: false,
+        },
+        java: {
+            enabled: false,
+        },
+        ndk: {
+            enabled: true,
+            additional_shared_libraries: [
+                "libnativewindow",
+            ],
+        },
+    },
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/BaseBlock.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/BaseBlock.aidl
new file mode 100644
index 0000000..460ff97
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/BaseBlock.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+union BaseBlock {
+  android.hardware.common.NativeHandle nativeBlock;
+  android.hardware.media.bufferpool2.BufferStatusMessage pooledBlock;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Block.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Block.aidl
new file mode 100644
index 0000000..7b3005e
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Block.aidl
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable Block {
+  int index;
+  android.hardware.media.c2.Params meta;
+  android.hardware.common.NativeHandle fence;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Buffer.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Buffer.aidl
new file mode 100644
index 0000000..b632932
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Buffer.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable Buffer {
+  android.hardware.media.c2.Params info;
+  android.hardware.media.c2.Block[] blocks;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldDescriptor.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldDescriptor.aidl
new file mode 100644
index 0000000..d0e4cbf
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldDescriptor.aidl
@@ -0,0 +1,62 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable FieldDescriptor {
+  android.hardware.media.c2.FieldId fieldId;
+  android.hardware.media.c2.FieldDescriptor.Type type;
+  int structIndex;
+  int extent;
+  String name;
+  android.hardware.media.c2.FieldDescriptor.NamedValue[] namedValues;
+  @Backing(type="int") @VintfStability
+  enum Type {
+    NO_INIT = 0,
+    INT32 = 1,
+    UINT32 = 2,
+    CNTR32 = 3,
+    INT64 = 4,
+    UINT64 = 5,
+    CNTR64 = 6,
+    FLOAT = 7,
+    STRING = 256,
+    BLOB = 257,
+    STRUCT = 131072,
+  }
+  @VintfStability
+  parcelable NamedValue {
+    String name;
+    long value;
+  }
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldId.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldId.aidl
new file mode 100644
index 0000000..935b85d
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldId.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable FieldId {
+  int offset;
+  int sizeBytes;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldSupportedValues.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldSupportedValues.aidl
new file mode 100644
index 0000000..69060be
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldSupportedValues.aidl
@@ -0,0 +1,41 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+union FieldSupportedValues {
+  boolean empty;
+  android.hardware.media.c2.ValueRange range;
+  long[] values;
+  long[] flags;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldSupportedValuesQuery.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldSupportedValuesQuery.aidl
new file mode 100644
index 0000000..22f7c84
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldSupportedValuesQuery.aidl
@@ -0,0 +1,44 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable FieldSupportedValuesQuery {
+  android.hardware.media.c2.ParamField field;
+  android.hardware.media.c2.FieldSupportedValuesQuery.Type type;
+  @Backing(type="int") @VintfStability
+  enum Type {
+    POSSIBLE = 0,
+    CURRENT = 1,
+  }
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldSupportedValuesQueryResult.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldSupportedValuesQueryResult.aidl
new file mode 100644
index 0000000..187e3eb
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FieldSupportedValuesQueryResult.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable FieldSupportedValuesQueryResult {
+  android.hardware.media.c2.Status status;
+  android.hardware.media.c2.FieldSupportedValues values;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FrameData.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FrameData.aidl
new file mode 100644
index 0000000..e73b05e
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/FrameData.aidl
@@ -0,0 +1,47 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable FrameData {
+  int flags;
+  android.hardware.media.c2.WorkOrdinal ordinal;
+  android.hardware.media.c2.Buffer[] buffers;
+  android.hardware.media.c2.Params configUpdate;
+  android.hardware.media.c2.InfoBuffer[] infoBuffers;
+  const int DROP_FRAME = 1;
+  const int END_OF_STREAM = 2;
+  const int DISCARD_FRAME = 4;
+  const int FLAG_INCOMPLETE = 8;
+  const int CODEC_CONFIG = -2147483648;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponent.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponent.aidl
new file mode 100644
index 0000000..7ed09af
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponent.aidl
@@ -0,0 +1,53 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+interface IComponent {
+  android.hardware.common.NativeHandle configureVideoTunnel(in int avSyncHwId);
+  android.hardware.media.c2.IComponent.BlockPool createBlockPool(in int allocatorId);
+  void destroyBlockPool(in long blockPoolId);
+  void drain(in boolean withEos);
+  android.hardware.media.c2.WorkBundle flush();
+  android.hardware.media.c2.IComponentInterface getInterface();
+  void queue(in android.hardware.media.c2.WorkBundle workBundle);
+  void release();
+  void reset();
+  void setOutputSurface(in long blockPoolId, in android.view.Surface surface, in android.hardware.media.c2.SurfaceSyncObj syncObject);
+  void start();
+  void stop();
+  parcelable BlockPool {
+    long blockPoolId;
+    android.hardware.media.c2.IConfigurable configurable;
+  }
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponentInterface.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponentInterface.aidl
new file mode 100644
index 0000000..2350dae
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponentInterface.aidl
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+interface IComponentInterface {
+  android.hardware.media.c2.IConfigurable getConfigurable();
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponentListener.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponentListener.aidl
new file mode 100644
index 0000000..f6f2a63
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponentListener.aidl
@@ -0,0 +1,53 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+interface IComponentListener {
+  oneway void onError(in android.hardware.media.c2.Status status, in int errorCode);
+  oneway void onFramesRendered(in android.hardware.media.c2.IComponentListener.RenderedFrame[] renderedFrames);
+  oneway void onInputBuffersReleased(in android.hardware.media.c2.IComponentListener.InputBuffer[] inputBuffers);
+  oneway void onTripped(in android.hardware.media.c2.SettingResult[] settingResults);
+  oneway void onWorkDone(in android.hardware.media.c2.WorkBundle workBundle);
+  @VintfStability
+  parcelable InputBuffer {
+    long frameIndex;
+    int arrayIndex;
+  }
+  @VintfStability
+  parcelable RenderedFrame {
+    long bufferQueueId;
+    int slotId;
+    long timestampNs;
+  }
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponentStore.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponentStore.aidl
new file mode 100644
index 0000000..35532be
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IComponentStore.aidl
@@ -0,0 +1,66 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+interface IComponentStore {
+  void copyBuffer(in android.hardware.media.c2.Buffer src, in android.hardware.media.c2.Buffer dst);
+  android.hardware.media.c2.IComponent createComponent(in String name, in android.hardware.media.c2.IComponentListener listener, in android.hardware.media.bufferpool2.IClientManager pool);
+  android.hardware.media.c2.IComponentInterface createInterface(in String name);
+  android.hardware.media.c2.IConfigurable getConfigurable();
+  android.hardware.media.bufferpool2.IClientManager getPoolClientManager();
+  android.hardware.media.c2.StructDescriptor[] getStructDescriptors(in int[] indices);
+  android.hardware.media.c2.IComponentStore.ComponentTraits[] listComponents();
+  @VintfStability
+  parcelable ComponentTraits {
+    String name;
+    android.hardware.media.c2.IComponentStore.ComponentTraits.Domain domain;
+    android.hardware.media.c2.IComponentStore.ComponentTraits.Kind kind;
+    int rank;
+    String mediaType;
+    String[] aliases;
+    @Backing(type="int") @VintfStability
+    enum Kind {
+      OTHER = 0,
+      DECODER = 1,
+      ENCODER = 2,
+    }
+    @Backing(type="int") @VintfStability
+    enum Domain {
+      OTHER = 0,
+      VIDEO = 1,
+      AUDIO = 2,
+      IMAGE = 3,
+    }
+  }
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IConfigurable.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IConfigurable.aidl
new file mode 100644
index 0000000..32f5abd
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/IConfigurable.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+interface IConfigurable {
+  android.hardware.media.c2.IConfigurable.ConfigResult config(in android.hardware.media.c2.Params inParams, in boolean mayBlock);
+  int getId();
+  String getName();
+  android.hardware.media.c2.Params query(in int[] indices, in boolean mayBlock);
+  android.hardware.media.c2.ParamDescriptor[] querySupportedParams(in int start, in int count);
+  android.hardware.media.c2.FieldSupportedValuesQueryResult[] querySupportedValues(in android.hardware.media.c2.FieldSupportedValuesQuery[] inFields, in boolean mayBlock);
+  @VintfStability
+  parcelable ConfigResult {
+    android.hardware.media.c2.Params params;
+    android.hardware.media.c2.SettingResult[] failures;
+  }
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/InfoBuffer.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/InfoBuffer.aidl
new file mode 100644
index 0000000..94cd77d
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/InfoBuffer.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable InfoBuffer {
+  int index;
+  android.hardware.media.c2.Buffer buffer;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ParamDescriptor.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ParamDescriptor.aidl
new file mode 100644
index 0000000..04c869c
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ParamDescriptor.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable ParamDescriptor {
+  int index;
+  int attrib;
+  String name;
+  int[] dependencies;
+  const int ATTRIBUTE_REQUIRED = 1;
+  const int ATTRIBUTE_PERSISTENT = 2;
+  const int ATTRIBUTE_STRICT = 4;
+  const int ATTRIBUTE_READ_ONLY = 8;
+  const int ATTRIBUTE_HIDDEN = 16;
+  const int ATTRIBUTE_INTERNAL = 32;
+  const int ATTRIBUTE_CONST = 64;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ParamField.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ParamField.aidl
new file mode 100644
index 0000000..13d2522
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ParamField.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable ParamField {
+  int index;
+  android.hardware.media.c2.FieldId fieldId;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ParamFieldValues.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ParamFieldValues.aidl
new file mode 100644
index 0000000..5a2821c
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ParamFieldValues.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable ParamFieldValues {
+  android.hardware.media.c2.ParamField paramOrField;
+  android.hardware.media.c2.FieldSupportedValues[] values;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Params.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Params.aidl
new file mode 100644
index 0000000..7d363c0
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Params.aidl
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable Params {
+  byte[] params;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/SettingResult.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/SettingResult.aidl
new file mode 100644
index 0000000..f9e6a93
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/SettingResult.aidl
@@ -0,0 +1,53 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable SettingResult {
+  android.hardware.media.c2.SettingResult.Failure failure;
+  android.hardware.media.c2.ParamFieldValues field;
+  android.hardware.media.c2.ParamFieldValues[] conflicts;
+  @Backing(type="int") @VintfStability
+  enum Failure {
+    BAD_TYPE = 0,
+    BAD_PORT = 1,
+    BAD_INDEX = 2,
+    READ_ONLY = 3,
+    MISMATCH = 4,
+    BAD_VALUE = 5,
+    CONFLICT = 6,
+    UNSUPPORTED = 7,
+    INFO_BAD_VALUE = 8,
+    INFO_CONFLICT = 9,
+  }
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Status.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Status.aidl
new file mode 100644
index 0000000..ad07677
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Status.aidl
@@ -0,0 +1,52 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable Status {
+  int status;
+  const int OK = 0;
+  const int BAD_VALUE = -22;
+  const int BAD_INDEX = -75;
+  const int CANNOT_DO = -2147483646;
+  const int DUPLICATE = -17;
+  const int NOT_FOUND = -2;
+  const int BAD_STATE = -38;
+  const int BLOCKING = -9930;
+  const int NO_MEMORY = -12;
+  const int REFUSED = -1;
+  const int TIMED_OUT = -110;
+  const int OMITTED = -74;
+  const int CORRUPTED = -2147483648;
+  const int NO_INIT = -19;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/StructDescriptor.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/StructDescriptor.aidl
new file mode 100644
index 0000000..58268e0
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/StructDescriptor.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable StructDescriptor {
+  int type;
+  android.hardware.media.c2.FieldDescriptor[] fields;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/SurfaceSyncObj.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/SurfaceSyncObj.aidl
new file mode 100644
index 0000000..1c9bf8d
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/SurfaceSyncObj.aidl
@@ -0,0 +1,41 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable SurfaceSyncObj {
+  android.hardware.common.NativeHandle syncMemory;
+  long bqId;
+  int generationId;
+  long consumerUsage;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ValueRange.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ValueRange.aidl
new file mode 100644
index 0000000..db71ce0
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/ValueRange.aidl
@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable ValueRange {
+  long min;
+  long max;
+  long step;
+  long num;
+  long denom;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Work.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Work.aidl
new file mode 100644
index 0000000..a534348
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Work.aidl
@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable Work {
+  byte[] chainInfo;
+  android.hardware.media.c2.FrameData input;
+  android.hardware.media.c2.Worklet[] worklets;
+  int workletsProcessed;
+  android.hardware.media.c2.Status result;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/WorkBundle.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/WorkBundle.aidl
new file mode 100644
index 0000000..84708a8
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/WorkBundle.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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable WorkBundle {
+  android.hardware.media.c2.Work[] works;
+  android.hardware.media.c2.BaseBlock[] baseBlocks;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/WorkOrdinal.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/WorkOrdinal.aidl
new file mode 100644
index 0000000..2833df3
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/WorkOrdinal.aidl
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable WorkOrdinal {
+  long timestampUs;
+  long frameIndex;
+  long customOrdinal;
+}
diff --git a/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Worklet.aidl b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Worklet.aidl
new file mode 100644
index 0000000..a79abf2
--- /dev/null
+++ b/media/c2/aidl/aidl_api/android.hardware.media.c2/current/android/hardware/media/c2/Worklet.aidl
@@ -0,0 +1,41 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.media.c2;
+@VintfStability
+parcelable Worklet {
+  int componentId;
+  byte[] tunings;
+  android.hardware.media.c2.SettingResult[] failures;
+  android.hardware.media.c2.FrameData output;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/BaseBlock.aidl b/media/c2/aidl/android/hardware/media/c2/BaseBlock.aidl
new file mode 100644
index 0000000..8b8b8e0
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/BaseBlock.aidl
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.common.NativeHandle;
+
+/**
+ * Storage type for `BaseBlock`.
+ *
+ * A `BaseBlock` is a representation of a codec memory block. Coded data,
+ * decoded data, codec-specific data, and other codec-related data are all sent
+ * in the form of BaseBlocks.
+ */
+@VintfStability
+union BaseBlock {
+    /**
+     * #nativeBlock is the opaque representation of a buffer.
+     */
+    NativeHandle nativeBlock;
+    /**
+     * #pooledBlock is a reference to a buffer handled by a BufferPool.
+     */
+    android.hardware.media.bufferpool2.BufferStatusMessage pooledBlock;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/Block.aidl b/media/c2/aidl/android/hardware/media/c2/Block.aidl
new file mode 100644
index 0000000..34aa7b1
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/Block.aidl
@@ -0,0 +1,44 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.common.NativeHandle;
+import android.hardware.media.c2.Params;
+
+/**
+ * Reference to a @ref BaseBlock within a @ref WorkBundle.
+ *
+ * `Block` contains additional attributes that `BaseBlock` does not. These
+ * attributes may differ among `Block` objects that refer to the same
+ * `BaseBlock` in the same `WorkBundle`.
+ */
+@VintfStability
+parcelable Block {
+    /**
+     * Identity of a `BaseBlock` within a `WorkBundle`. This is an index into
+     * #WorkBundle.baseBlocks.
+     */
+    int index;
+    /**
+     * Metadata associated with this `Block`.
+     */
+    Params meta;
+    /**
+     * Fence for synchronizing `Block` access.
+     */
+    NativeHandle fence;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/Buffer.aidl b/media/c2/aidl/android/hardware/media/c2/Buffer.aidl
new file mode 100644
index 0000000..d2dcf2d
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/Buffer.aidl
@@ -0,0 +1,37 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.Block;
+import android.hardware.media.c2.Params;
+
+/**
+ * A codec buffer, which is a collection of @ref Block objects and metadata.
+ *
+ * This is a part of @ref FrameData.
+ */
+@VintfStability
+parcelable Buffer {
+    /**
+     * Metadata associated with the buffer.
+     */
+    Params info;
+    /**
+     * Blocks contained in the buffer.
+     */
+    Block[] blocks;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/FieldDescriptor.aidl b/media/c2/aidl/android/hardware/media/c2/FieldDescriptor.aidl
new file mode 100644
index 0000000..a2774ec
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/FieldDescriptor.aidl
@@ -0,0 +1,103 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.FieldId;
+
+/**
+ * Description of a field inside a C2Param structure.
+ */
+@VintfStability
+parcelable FieldDescriptor {
+    /**
+     * Possible types of the field.
+     */
+    @VintfStability
+    @Backing(type="int")
+    enum Type {
+        NO_INIT = 0,
+        INT32,
+        UINT32,
+        CNTR32,
+        INT64,
+        UINT64,
+        CNTR64,
+        FLOAT,
+        /**
+         * Fixed-size string (POD).
+         */
+        STRING = 0x100,
+        /**
+         * A blob has no sub-elements and can be thought of as an array of
+         * bytes. However, bytes cannot be individually addressed by clients.
+         */
+        BLOB,
+        /**
+         * The field is a structure that may contain other fields.
+         */
+        STRUCT = 0x20000,
+    }
+    /**
+     * Named value type. This is used for defining an enum value for a numeric
+     * type.
+     */
+    @VintfStability
+    parcelable NamedValue {
+        /**
+         * Name of the enum value. This must be unique for each enum value in
+         * the same field.
+         */
+        String name;
+        /**
+         * Underlying value of the enum value. Multiple enum names may have the
+         * same underlying value.
+         */
+        long value;
+    }
+    /**
+     * Location of the field in the C2Param structure
+     */
+    FieldId fieldId;
+    /**
+     * Type of the field.
+     */
+    Type type;
+    /**
+     * If #type is #Type.STRUCT, #structIndex is the C2Param structure index;
+     * otherwise, #structIndex is not used.
+     */
+    int structIndex;
+    /**
+     * Extent of the field.
+     * - For a non-array field, #extent is 1.
+     * - For a fixed-length array field, #extent is the length. An array field
+     *   of length 1 is indistinguishable from a non-array field.
+     * - For a variable-length array field, #extent is 0. This can only occur as
+     *   the last member of a C2Param structure.
+     */
+    int extent;
+    /**
+     * Name of the field. This must be unique for each field in the same
+     * structure.
+     */
+    String name;
+    /**
+     * List of enum values. This is not used when #type is not one of the
+     * numeric types.
+     */
+    NamedValue[] namedValues;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/FieldId.aidl b/media/c2/aidl/android/hardware/media/c2/FieldId.aidl
new file mode 100644
index 0000000..68bf058
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/FieldId.aidl
@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+/**
+ * Identifying information of a field relative to a known C2Param structure.
+ *
+ * Within a given C2Param structure, each field is uniquely identified by @ref
+ * FieldId.
+ */
+@VintfStability
+parcelable FieldId {
+    /**
+     * Offset of the field in bytes.
+     */
+    int offset;
+    /**
+     * Size of the field in bytes.
+     */
+    int sizeBytes;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/FieldSupportedValues.aidl b/media/c2/aidl/android/hardware/media/c2/FieldSupportedValues.aidl
new file mode 100644
index 0000000..6c2033b
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/FieldSupportedValues.aidl
@@ -0,0 +1,54 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.ValueRange;
+
+/*
+ * Description of supported values for a field of C2Param.
+ *
+ * This can be a continuous range or a discrete set of values.
+ *
+ * The intended type of values must be made clear in the context where
+ * `FieldSupportedValues` is used.
+ */
+@VintfStability
+union FieldSupportedValues {
+    /**
+     * No supported values
+     */
+    boolean empty;
+    /**
+     * Numeric range, described in a #ValueRange structure
+     */
+    ValueRange range;
+    /**
+     * List of values
+     */
+    long[] values;
+    /**
+     * List of flags that can be OR-ed.
+     *
+     * The list contains { min-mask, flag1, flag2... }. Basically, the first
+     * value is the required set of flags to be set, and the rest of the values are flags that can
+     * be set independently. FLAGS is only supported for integral types. Supported flags should
+     * not overlap, as it can make validation non-deterministic. The standard validation method
+     * is that starting from the original value, if each flag is removed when fully present (the
+     * min-mask must be fully present), we shall arrive at 0.
+     */
+    long[] flags;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/FieldSupportedValuesQuery.aidl b/media/c2/aidl/android/hardware/media/c2/FieldSupportedValuesQuery.aidl
new file mode 100644
index 0000000..bdaaef6
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/FieldSupportedValuesQuery.aidl
@@ -0,0 +1,47 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.ParamField;
+
+/**
+ * Query information for supported values of a field. This is used as input to
+ * IConfigurable::querySupportedValues().
+ */
+@VintfStability
+parcelable FieldSupportedValuesQuery {
+    @VintfStability
+    @Backing(type="int")
+    enum Type {
+        /**
+         * Query all possible values regardless of other settings.
+         */
+        POSSIBLE = 0,
+        /**
+         * Query currently possible values given dependent settings.
+         */
+        CURRENT,
+    }
+    /**
+     * Identity of the field to query.
+     */
+    ParamField field;
+    /**
+     * Type of the query. See #Type for more information.
+     */
+    Type type;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/FieldSupportedValuesQueryResult.aidl b/media/c2/aidl/android/hardware/media/c2/FieldSupportedValuesQueryResult.aidl
new file mode 100644
index 0000000..b5c28c6
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/FieldSupportedValuesQueryResult.aidl
@@ -0,0 +1,44 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.FieldSupportedValues;
+import android.hardware.media.c2.Status;
+
+/**
+ * This structure is used to hold the result from
+ * IConfigurable::querySupportedValues().
+ */
+@VintfStability
+parcelable FieldSupportedValuesQueryResult {
+    /**
+     * Result of the query. Possible values are
+     * - `Status::OK`: The query was successful.
+     * - `Status::BAD_STATE`: The query was requested when the `IConfigurable` instance
+     *   was in a bad state.
+     * - `Status::BAD_INDEX`: The requested field was not recognized.
+     * - `Status::TIMED_OUT`: The query could not be completed in a timely manner.
+     * - `Status::BLOCKING`: The query must block, but the parameter `mayBlock` in the
+     *   call to `querySupportedValues()` was `false`.
+     * - `Status::CORRUPTED`: Some unknown error occurred.
+     */
+    Status status;
+    /**
+     * Supported values. This is meaningful only when #status is `OK`.
+     */
+    FieldSupportedValues values;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/FrameData.aidl b/media/c2/aidl/android/hardware/media/c2/FrameData.aidl
new file mode 100644
index 0000000..15c1b6d
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/FrameData.aidl
@@ -0,0 +1,97 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.Buffer;
+import android.hardware.media.c2.InfoBuffer;
+import android.hardware.media.c2.Params;
+import android.hardware.media.c2.WorkOrdinal;
+
+/**
+ * Data for an input frame or an output frame.
+ *
+ * This structure represents a @e frame with its metadata. A @e frame consists
+ * of an ordered set of buffers, configuration changes, and info buffers along
+ * with some non-configuration metadata.
+ *
+ * @note `FrameData` is the HIDL counterpart of `C2FrameData` in the Codec 2.0
+ * standard.
+ */
+@VintfStability
+parcelable FrameData {
+    /** List of frame flags */
+    /**
+     * For input frames: no output frame shall be generated when processing
+     * this frame, but metadata must still be processed.
+     *
+     * For output frames: this frame must be discarded but metadata is still
+     * valid.
+     */
+    const int DROP_FRAME = (1 << 0);
+    /**
+     * This frame is the last frame of the current stream. Further frames
+     * are part of a new stream.
+     */
+    const int END_OF_STREAM = (1 << 1);
+    /**
+     * This frame must be discarded with its metadata.
+     *
+     * This flag is only set by components, e.g. as a response to the flush
+     * command.
+     */
+    const int DISCARD_FRAME = (1 << 2);
+    /**
+     * This frame is not the last frame produced for the input.
+     *
+     * This flag is normally set by the component - e.g. when an input frame
+     * results in multiple output frames, this flag is set on all but the
+     * last output frame.
+     *
+     * Also, when components are chained, this flag should be propagated
+     * down the work chain. That is, if set on an earlier frame of a
+     * work-chain, it should be propagated to all later frames in that
+     * chain. Additionally, components down the chain could set this flag
+     * even if not set earlier, e.g. if multiple output frames are generated
+     * at that component for the input frame.
+     */
+    const int FLAG_INCOMPLETE = (1 << 3);
+    /**
+     * This frame contains only codec-specific configuration data, and no
+     * actual access unit.
+     */
+    const int CODEC_CONFIG = (1 << 31);
+    /**
+     * Frame flags, as described above.
+     */
+    int flags;
+    /**
+     * @ref WorkOrdinal of the frame.
+     */
+    WorkOrdinal ordinal;
+    /**
+     * List of frame buffers.
+     */
+    Buffer[] buffers;
+    /**
+     * List of configuration updates.
+     */
+    Params configUpdate;
+    /**
+     * List of info buffers.
+     */
+    InfoBuffer[] infoBuffers;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/IComponent.aidl b/media/c2/aidl/android/hardware/media/c2/IComponent.aidl
new file mode 100644
index 0000000..b3390c3
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/IComponent.aidl
@@ -0,0 +1,304 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.common.NativeHandle;
+import android.view.Surface;
+
+import android.hardware.media.c2.IComponentInterface;
+import android.hardware.media.c2.IConfigurable;
+import android.hardware.media.c2.WorkBundle;
+import android.hardware.media.c2.SurfaceSyncObj;
+
+/**
+ * Interface for an AIDL Codec2 component.
+ * Components have two states: stopped and running. The running state has three
+ * sub-states: executing, tripped and error.
+ *
+ * All methods in `IComponent` must not block. If a method call cannot be
+ * completed in a timely manner, it must throw `Status::TIMED_OUT`.
+ */
+@VintfStability
+interface IComponent {
+    /**
+     * The reference object from framwork to HAL C2BlockPool.
+     *
+     * The object will be returned when C2BlockPool is created by a framework
+     * request. The object also can be destroyed using blockPoolId.
+     * Using configurable framework can query/config the object in HAL(IComponent).
+     */
+    parcelable BlockPool {
+        long blockPoolId;
+        IConfigurable configurable;
+    }
+    /**
+     * Configures a component for a tunneled playback mode.
+     *
+     * A successful call to this method puts the component in the *tunneled*
+     * mode. In this mode, the output `Worklet`s returned in
+     * IComponentListener::onWorkDone() may not contain any buffers. The output
+     * buffers are passed directly to the consumer end of a buffer queue whose
+     * producer side is configured with the returned @p sidebandStream passed
+     * to IGraphicBufferProducer::setSidebandStream().
+     *
+     * The component is initially in the non-tunneled mode by default. The
+     * tunneled mode can be toggled on only before the component starts
+     * processing. Once the component is put into the tunneled mode, it shall
+     * stay in the tunneled mode until and only until reset() is called.
+     *
+     * @param avSyncHwId A resource ID for hardware sync. The generator of sync
+     *     IDs must ensure that this number is unique among all services at any
+     *     given time. For example, if both the audio HAL and the tuner HAL
+     *     support this feature, sync IDs from the audio HAL must not clash
+     *     with sync IDs from the tuner HAL.
+     * @return Codec-allocated sideband stream NativeHandle. This can
+     *     be passed to IGraphicBufferProducer::setSidebandStream() to
+     *     establish a direct channel to the consumer.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::OMITTED`   - The component does not support video tunneling.
+     *   - `Status::BAD_STATE` - The component is already running.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    NativeHandle configureVideoTunnel(in int avSyncHwId);
+
+    /**
+     * Creates a local `C2BlockPool` backed by the given allocator and returns
+     * its id.
+     *
+     * The returned @p blockPoolId is the only way the client can refer to a
+     * `C2BlockPool` object in the component. The id can be passed to
+     * setOutputSurface() or used in some C2Param objects later.
+     *
+     * The created `C2BlockPool` object can be destroyed by calling
+     * destroyBlockPool(), reset() or release(). reset() and release() must
+     * destroy all `C2BlockPool` objects that have been created.
+     *
+     * @param allocatorId Id of a `C2Allocator`.
+     * @param out configurable Configuration interface for the created pool. This
+     *     must not be null.
+     * @return Created block pool information. This could be used to config/query and
+     * also be used in setOutputSurface() if the allocator
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::NO_MEMORY` - Not enough memory to create the pool.
+     *   - `Status::BAD_VALUE` - @p allocatorId is not recognized.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    BlockPool createBlockPool(in int allocatorId);
+
+    /**
+     * Destroys a local block pool previously created by createBlockPool().
+     *
+     * @param blockPoolId Id of a `C2BlockPool` that was previously returned by
+     *      createBlockPool().
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::NOT_FOUND` - The supplied blockPoolId is not valid.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    void destroyBlockPool(in long blockPoolId);
+
+    /**
+     * Drains the component, and optionally downstream components. This is a
+     * signalling method; as such it does not wait for any work completion.
+     *
+     * The last `Work` item is marked as "drain-till-here", so the component is
+     * notified not to wait for further `Work` before it processes what is
+     * already queued. This method can also be used to set the end-of-stream
+     * flag after `Work` has been queued. Client can continue to queue further
+     * `Work` immediately after this method returns.
+     *
+     * This method must be supported in running (including tripped) states.
+     *
+     * `Work` that is completed must be returned via
+     * IComponentListener::onWorkDone().
+     *
+     * @param withEos Whether to drain the component with marking end-of-stream.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    void drain(in boolean withEos);
+
+    /**
+     * Discards and abandons any pending `Work` items for the component.
+     *
+     * This method must be supported in running (including tripped) states.
+     *
+     * `Work` that could be immediately abandoned/discarded must be returned in
+     * @p flushedWorkBundle. The order in which queued `Work` items are
+     * discarded can be arbitrary.
+     *
+     * `Work` that could not be abandoned or discarded immediately must be
+     * marked to be discarded at the earliest opportunity, and must be returned
+     * via IComponentListener::onWorkDone(). This must be completed within
+     * 500ms.
+     *
+     * @return `WorkBundle` object containing flushed `Work` items.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    WorkBundle flush();
+
+    /**
+     * Returns the @ref IComponentInterface instance associated to this
+     * component.
+     *
+     * An @ref IConfigurable instance for the component can be obtained by calling
+     * IComponentInterface::getConfigurable() on the returned @p intf.
+     *
+     * @return `IComponentInterface` instance. This must not be null.
+     */
+    IComponentInterface getInterface();
+
+    /**
+     * Queues up work for the component.
+     *
+     * This method must be supported in running (including tripped) states.
+     *
+     * It is acceptable for this method to return `OK` and return an error value
+     * using the IComponentListener::onWorkDone() callback.
+     *
+     * @param workBundle `WorkBundle` object containing a list of `Work` objects
+     *     to queue to the component.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::BAD_INDEX` - Some component id in some `Worklet` is not valid.
+     *   - `Status::CANNOT_DO` - The components are not tunneled but some `Work` object
+     *                   contains tunneling information.
+     *   - `Status::NO_MEMORY` - Not enough memory to queue @p workBundle.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    void queue(in WorkBundle workBundle);
+
+    /**
+     * Releases the component.
+     *
+     * This method must be supported in stopped state.
+     *
+     * This method destroys the component. Upon return, if @p status is `OK` or
+     * `DUPLICATE`, all resources must have been released.
+     *
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::BAD_STATE` - The component is running.
+     *   - `Status::DUPLICATE` - The component is already released.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    void release();
+
+    /**
+     * Resets the component.
+     *
+     * This method must be supported in all (including tripped) states other
+     * than released.
+     *
+     * This method must be supported during any other blocking call.
+     *
+     * This method must return within 500ms.
+     *
+     * When this call returns, if @p status is `OK`, all `Work` items must
+     * have been abandoned, and all resources (including `C2BlockPool` objects
+     * previously created by createBlockPool()) must have been released.
+     *
+     * If the return value is `BAD_STATE` or `DUPLICATE`, no state change is
+     * expected as a response to this call. For all other return values, the
+     * component must be in the stopped state.
+     *
+     * This brings settings back to their default, "guaranteeing" no tripped
+     * state.
+     *
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::BAD_STATE` - Component is in released state.
+     *   - `Status::DUPLICATE` - When called during another reset call from another
+     *                   thread.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    void reset();
+
+    /**
+     * Starts using a surface for output with a synchronization object
+     *
+     * This method must not block.
+     *
+     * @param blockPoolId Id of the `C2BlockPool` to be associated with the
+     *     output surface.
+     * @param surface Output surface.
+     * @param syncObject synchronization object for buffer allocation between
+     *     Framework and Component.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::CANNOT_DO` - The component does not support an output surface.
+     *   - `Status::REFUSED`   - The output surface cannot be accessed.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    void setOutputSurface(in long blockPoolId, in Surface surface,
+        in SurfaceSyncObj syncObject);
+
+    /**
+     * Starts the component.
+     *
+     * This method must be supported in stopped state as well as tripped state.
+     *
+     * If the return value is `OK`, the component must be in the running state.
+     * If the return value is `BAD_STATE` or `DUPLICATE`, no state change is
+     * expected as a response to this call. Otherwise, the component must be in
+     * the stopped state.
+     *
+     * If a component is in the tripped state and start() is called while the
+     * component configuration still results in a trip, start() must succeed and
+     * a new onTripped() callback must be used to communicate the configuration
+     * conflict that results in the new trip.
+     *
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::BAD_STATE` - Component is not in stopped or tripped state.
+     *   - `Status::DUPLICATE` - When called during another start call from another
+     *                   thread.
+     *   - `Status::NO_MEMORY` - Not enough memory to start the component.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    void start();
+
+    /**
+     * Stops the component.
+     *
+     * This method must be supported in running (including tripped) state.
+     *
+     * This method must return within 500ms.
+     *
+     * Upon this call, all pending `Work` must be abandoned.
+     *
+     * If the return value is `BAD_STATE` or `DUPLICATE`, no state change is
+     * expected as a response to this call. For all other return values, the
+     * component must be in the stopped state.
+     *
+     * This does not alter any settings and tunings that may have resulted in a
+     * tripped state.
+     *
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::BAD_STATE` - Component is not in running state.
+     *   - `Status::DUPLICATE` - When called during another stop call from another
+     *                   thread.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    void stop();
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/IComponentInterface.aidl b/media/c2/aidl/android/hardware/media/c2/IComponentInterface.aidl
new file mode 100644
index 0000000..9db81e6
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/IComponentInterface.aidl
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.IConfigurable;
+
+/**
+ * Component interface object. This object contains all of the configurations of
+ * a potential or actual component. It can be created and used independently of
+ * an actual Codec2 component to query supported parameters for various
+ * component settings, and configurations for a potential component.
+ *
+ * An actual component exposes this interface via IComponent::getInterface().
+ */
+@VintfStability
+interface IComponentInterface {
+    /**
+     * Returns the @ref IConfigurable instance associated to this component
+     * interface.
+     *
+     * @return `IConfigurable` instance. This must not be null.
+     */
+    IConfigurable getConfigurable();
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/IComponentListener.aidl b/media/c2/aidl/android/hardware/media/c2/IComponentListener.aidl
new file mode 100644
index 0000000..75500b7
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/IComponentListener.aidl
@@ -0,0 +1,131 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.SettingResult;
+import android.hardware.media.c2.Status;
+import android.hardware.media.c2.WorkBundle;
+
+/**
+ * Callback interface for handling notifications from @ref IComponent.
+ */
+@VintfStability
+oneway interface IComponentListener {
+    /**
+     * Identifying information for an input buffer previously queued to the
+     * component via IComponent::queue().
+     */
+    @VintfStability
+    parcelable InputBuffer {
+        /**
+         * This value comes from `Work::input.ordinal.frameIndex` in a `Work`
+         * object that was previously queued.
+         */
+        long frameIndex;
+        /**
+         * This value is an index into `Work::input.buffers` (which is an array)
+         * in a `Work` object that was previously queued.
+         */
+        int arrayIndex;
+    }
+    /**
+     * Information about rendering of a frame to a `Surface`.
+     */
+    @VintfStability
+    parcelable RenderedFrame {
+        /**
+         * Id of the `BufferQueue` containing the rendered buffer.
+         *
+         * This value must have been obtained by an earlier call to
+         * IGraphicBufferProducer::getUniqueId().
+         */
+        long bufferQueueId;
+        /**
+         * Id of the slot of the rendered buffer.
+         *
+         * This value must have been obtained by an earlier call to
+         * IGraphicBufferProducer::dequeueBuffer() or
+         * IGraphicBufferProducer::attachBuffer().
+         */
+        int slotId;
+        /**
+         * Timestamp the rendering happened.
+         *
+         * The reference point for the timestamp is determined by the
+         * `BufferQueue` that performed the rendering.
+         */
+        long timestampNs;
+    }
+    /**
+     * Notify the listener of an error.
+     *
+     * @param status Error type. @p status may be `OK`, which means that an
+     *     error has occurred, but the error type does not fit into the type
+     *     `Status`. In this case, additional information is provided by
+     *     @p errorCode.
+     * @param errorCode Additional error information. The framework may not
+     *     recognize the meaning of this value.
+     */
+    void onError(in Status status, in int errorCode);
+
+    /**
+     * Notify the listener that frames have been rendered.
+     *
+     * @param renderedFrames List of @ref RenderedFrame objects.
+     */
+    void onFramesRendered(in RenderedFrame[] renderedFrames);
+
+    /**
+     * Notify the listener that some input buffers are no longer needed by the
+     * component, and hence can be released or reused by the client.
+     *
+     * Input buffers that are contained in a `Work` object returned by an
+     * earlier onWorkDone() call are assumed released, so they must not appear
+     * in any onInputBuffersReleased() calls. That means
+     * onInputBuffersReleased() must only report input buffers that are released
+     * before the output in the same `Work` item is produced. However, it is
+     * possible for an input buffer to be returned by onWorkDone() after it has
+     * been reported by onInputBuffersReleased().
+     *
+     * @note onWorkDone() and onInputBuffersReleased() both notify the client
+     * that input buffers are no longer needed. However, in order to minimize
+     * IPC calls, onInputBuffersReleased() should be called only when
+     * onWorkDone() cannot be called, e.g., the component needs more input
+     * before an output can be produced.
+     *
+     * @param inputBuffers List of `InputBuffer` objects, identifying input
+     * buffers that are no longer needed by the component.
+     */
+    void onInputBuffersReleased(in InputBuffer[] inputBuffers);
+
+    /**
+     * Notify the listener that the component is tripped.
+     *
+     * @param settingResults List of failures.
+     */
+    void onTripped(in SettingResult[] settingResults);
+
+    /**
+     * Notify the listener that some `Work` items have been completed.
+     *
+     * All the input buffers in the returned `Work` objects must not be used by
+     * the component after onWorkDone() is called.
+     *
+     * @param workBundle List of completed `Work` objects.
+     */
+    void onWorkDone(in WorkBundle workBundle);
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/IComponentStore.aidl b/media/c2/aidl/android/hardware/media/c2/IComponentStore.aidl
new file mode 100644
index 0000000..1435a7e
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/IComponentStore.aidl
@@ -0,0 +1,185 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.Buffer;
+import android.hardware.media.c2.IComponent;
+import android.hardware.media.c2.IComponentInterface;
+import android.hardware.media.c2.IComponentListener;
+import android.hardware.media.c2.IConfigurable;
+import android.hardware.media.c2.StructDescriptor;
+
+/**
+ * Entry point for Codec2 HAL.
+ *
+ * All methods in `IComponentStore` must not block. If a method call cannot be
+ * completed in a timely manner, it must throw `Status::TIMED_OUT`. The only
+ * exceptions are getPoolClientManager() and getConfigurable(),  which must
+ * always return immediately.
+ *
+ * @note This is an extension of version 1.1 of `IComponentStore`. The purpose
+ * of the extension is to add support for blocking output buffer allocator.
+ */
+@VintfStability
+interface IComponentStore {
+    /**
+     * Component traits.
+     */
+    @VintfStability
+    parcelable ComponentTraits {
+        @VintfStability
+        @Backing(type="int")
+        enum Kind {
+            OTHER = 0,
+            DECODER,
+            ENCODER,
+        }
+        @VintfStability
+        @Backing(type="int")
+        enum Domain {
+            OTHER = 0,
+            VIDEO,
+            AUDIO,
+            IMAGE,
+        }
+        /**
+         * Name of the component. This must be unique for each component.
+         *
+         * This name is use to identify the component to create in
+         * createComponent() and createComponentInterface().
+         */
+        String name;
+        /**
+         * Component domain.
+         */
+        Domain domain;
+        /**
+         * Component kind.
+         */
+        Kind kind;
+        /**
+         * Rank used by `MediaCodecList` to determine component ordering. Lower
+         * value means higher priority.
+         */
+        int rank;
+        /**
+         * MIME type.
+         */
+        String mediaType;
+        /**
+         * Aliases for component name for backward compatibility.
+         *
+         * Multiple components can have the same alias (but not the same
+         * component name) as long as their media types differ.
+         */
+        String[] aliases;
+    }
+
+    /**
+     * Copies the contents of @p src into @p dst without changing the format of
+     * @p dst.
+     *
+     * @param src Source buffer.
+     * @param dst Destination buffer.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::CANNOT_DO` - @p src and @p dst are not compatible.
+     *   - `Status::REFUSED`   - No permission to copy.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    void copyBuffer(in Buffer src, in Buffer dst);
+
+    /**
+     * Creates a component by name.
+     *
+     * @param name Name of the component to create. This must match one of the
+     *     names returned by listComponents().
+     * @param listener Callback receiver.
+     * @param pool `IClientManager` object of the BufferPool in the client
+     *     process. This may be null if the client does not own a BufferPool.
+     * @return The created component.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::NOT_FOUND` - There is no component with the given name.
+     *   - `Status::NO_MEMORY` - Not enough memory to create the component.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     *
+     * @sa IComponentListener.
+     */
+    IComponent createComponent(in String name, in IComponentListener listener,
+        in android.hardware.media.bufferpool2.IClientManager pool);
+
+    /**
+     * Creates a component interface by name.
+     *
+     * @param name Name of the component interface to create. This should match
+     *     one of the names returned by listComponents().
+     * @return The created component interface.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::NOT_FOUND` - There is no component interface with the given name.
+     *   - `Status::NO_MEMORY` - Not enough memory to create the component interface.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    IComponentInterface createInterface(in String name);
+
+    /**
+     * Returns the @ref IConfigurable instance associated to this component
+     * store.
+     *
+     * @return `IConfigurable` instance. This must not be null.
+     */
+    IConfigurable getConfigurable();
+
+    /**
+     * Returns the `IClientManager` object for the component's BufferPool.
+     *
+     * @return If the component store supports receiving buffers via
+     *     BufferPool API, @p pool must be a valid `IClientManager` instance.
+     *     Otherwise, @p pool must be null.
+     */
+    android.hardware.media.bufferpool2.IClientManager getPoolClientManager();
+
+    /**
+     * Returns a list of `StructDescriptor` objects for a set of requested
+     * C2Param structure indices that this store is aware of.
+     *
+     * This operation must be performed at best effort, e.g. the component
+     * store must simply ignore all struct indices that it is not aware of.
+     *
+     * @param indices Indices of C2Param structures to describe.
+     * @return List of `StructDescriptor` objects.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::NOT_FOUND` - Some indices were not known.
+     *   - `Status::NO_MEMORY` - Not enough memory to complete this method.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    StructDescriptor[] getStructDescriptors(in int[] indices);
+
+    /**
+     * Returns the list of components supported by this component store.
+     *
+     * @return traits List of component traits for all components supported by
+     *     this store (in no particular order).
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::NO_MEMORY` - Not enough memory to complete this method.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    ComponentTraits[] listComponents();
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/IConfigurable.aidl b/media/c2/aidl/android/hardware/media/c2/IConfigurable.aidl
new file mode 100644
index 0000000..7fdb825
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/IConfigurable.aidl
@@ -0,0 +1,213 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.FieldSupportedValuesQuery;
+import android.hardware.media.c2.FieldSupportedValuesQueryResult;
+import android.hardware.media.c2.ParamDescriptor;
+import android.hardware.media.c2.Params;
+import android.hardware.media.c2.SettingResult;
+
+/**
+ * Generic configuration interface presented by all configurable Codec2 objects.
+ *
+ * This interface must be supported in all states of the owning object, and must
+ * not change the state of the owning object.
+ */
+@VintfStability
+interface IConfigurable {
+    /**
+     * Return parcelable for config() interface.
+     *
+     * This includes the successful config settings along with the failure reasons of
+     * the specified setting.
+     */
+    @VintfStability
+    parcelable ConfigResult {
+        Params params;
+        SettingResult[] failures;
+    }
+
+    /**
+     * Sets a set of parameters for the object.
+     *
+     * Tuning is performed at best effort: the object must update all supported
+     * configurations at best effort and skip unsupported parameters. Any errors
+     * are communicated in the return value along with the failures.
+     *
+     * A non-strict parameter update with an unsupported value shall cause an
+     * update to the closest supported value. A strict parameter update with an
+     * unsupported value shall be skipped and a failure shall be returned.
+     *
+     * If @p mayBlock is false, this method must not block. An update that
+     * requires blocking shall be skipped and a failure shall be returned.
+     *
+     * If @p mayBlock is true, an update may block, but the whole method call
+     * has to complete in a timely manner, or `Status::TIMED_OUT` is thrown.
+     *
+     * The final values for all parameters set are propagated back to the caller
+     * in @p params.
+     *
+     * \par For IComponent
+     *
+     * When the object type is @ref IComponent, this method must be supported in
+     * any state except released.
+     *
+     * The blocking behavior of this method differs among states:
+     *   - In the stopped state, this must be non-blocking. @p mayBlock is
+     *     ignored. (The method operates as if @p mayBlock was false.)
+     *   - In any of the running states, this method may block momentarily if
+     *     @p mayBlock is true. However, if the call cannot be completed in a
+     *     timely manner, `Status::TIMED_OUT` is thrown.
+     *
+     * @note Parameter tuning @e does depend on the order of the tuning
+     * parameters, e.g., some parameter update may enable some subsequent
+     * parameter update.
+     *
+     * @param inParams Requested parameter updates.
+     * @param mayBlock Whether this call may block or not.
+     * @return result of config. Params in the result should be in same order
+     *     with @p inParams.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::NO_MEMORY` - Some supported parameters could not be updated
+     *                   successfully because they contained unsupported values.
+     *                   These are returned in @p failures.
+     *   - `Status::BLOCKING`  - Setting some parameters requires blocking, but
+     *                   @p mayBlock is false.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    ConfigResult config(in Params inParams, in boolean mayBlock);
+
+    /**
+     * Returns the id of the object. This must be unique among all objects of
+     * the same type hosted by the same store.
+     *
+     * @return Id of the object.
+     */
+    int getId();
+
+    /**
+     * Returns the name of the object.
+     *
+     * This must match the name that was supplied during the creation of the
+     * object.
+     *
+     * @return Name of the object.
+     */
+    String getName();
+
+    /**
+     * Queries a set of parameters from the object.
+     *
+     * Querying is performed at best effort: the object must query all supported
+     * parameters and skip unsupported ones (which may include parameters that
+     * could not be allocated).
+     *
+     * If @p mayBlock is true, a query may block, but the whole method call
+     * has to complete in a timely manner, or `Status::TIMED_OUT` is thrown.
+     *
+     * If @p mayBlock is false, this method must not block(All parameter queries
+     * that require blocking must be skipped). Otherwise, this
+     * method is allowed to block for a certain period of time before completing
+     * the operation. If the operation is not completed in a timely manner,
+     * `Status::TIMED_OUT` is thrown.
+     *
+     * @note Since unsupported parameters will be skipped, the returned results
+     *     does not have every settings from @p indices, but the result will preserve
+     *     the original order from @p indices though unsupported settings are skipped.
+     *
+     * \par For IComponent
+     *
+     * When the object type is @ref IComponent, this method must be supported in
+     * any state except released. This call must not change the state nor the
+     * internal configuration of the component.
+     *
+     * The blocking behavior of this method differs among states:
+     *   - In the stopped state, this must be non-blocking. @p mayBlock is
+     *     ignored. (The method operates as if @p mayBlock was false.)
+     *   - In any of the running states, this method may block momentarily if
+     *     @p mayBlock is true. However, if the call cannot be completed in a
+     *     timely manner, `Status::status` is thrown.
+     *
+     * @param indices List of C2Param structure indices to query.
+     * @param mayBlock Whether this call may block or not.
+     * @return Flattened representation of std::vector<C2Param> object.
+     *     Unsupported settings are skipped in the results. The order in @p indices
+     *     still be preserved except skipped settings.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::NO_MEMORY` - Could not allocate memory for a supported parameter.
+     *   - `Status::BLOCKING`  - Querying some parameters requires blocking, but
+     *                   @p mayBlock is false.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    Params query(in int[] indices, in boolean mayBlock);
+
+    /**
+     * Returns a list of supported parameters within a selected range of C2Param
+     * structure indices.
+     *
+     * @param start The first index of the selected range.
+     * @param count The length of the selected range.
+     * @return List of supported parameters in the selected range. This
+     *     list may have fewer than @p count elements if some indices in the
+     *     range are not supported.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::NO_MEMORY` - Not enough memory to complete this method.
+     *
+     */
+    ParamDescriptor[] querySupportedParams(in int start, in int count);
+
+    /**
+     * Retrieves the supported values for the queried fields.
+     *
+     * The object must process all fields queried even if some queries fail.
+     *
+     * If @p mayBlock is false, this method must not block. Otherwise, this
+     * method is allowed to block for a certain period of time before completing
+     * the operation. If the operation cannot be completed in a timely manner,
+     * `Status::TIMED_OUT` is thrown.
+     *
+     * \par For IComponent
+     *
+     * When the object type is @ref IComponent, this method must be supported in
+     * any state except released.
+     *
+     * The blocking behavior of this method differs among states:
+     *   - In the stopped state, this must be non-blocking. @p mayBlock is
+     *     ignored. (The method operates as if @p mayBlock was false.)
+     *   - In any of the running states, this method may block momentarily if
+     *     @p mayBlock is true. However, if the call cannot be completed in a
+     *     timely manner, `Status::TIMED_OUT` is thrown.
+     *
+     * @param inFields List of field queries.
+     * @param mayBlock Whether this call may block or not.
+     * @return List of supported values and results for the
+     *     supplied queries.
+     * @throws ServiceSpecificException with one of the following values:
+     *   - `Status::BLOCKING`  - Querying some parameters requires blocking, but
+     *                   @p mayBlock is false.
+     *   - `Status::NO_MEMORY` - Not enough memory to complete this method.
+     *   - `Status::BLOCKING`  - Querying some fields requires blocking, but @p mayblock
+     *                   is false.
+     *   - `Status::TIMED_OUT` - The operation cannot be finished in a timely manner.
+     *   - `Status::CORRUPTED` - Some unknown error occurred.
+     */
+    FieldSupportedValuesQueryResult[] querySupportedValues(
+            in FieldSupportedValuesQuery[] inFields, in boolean mayBlock);
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/InfoBuffer.aidl b/media/c2/aidl/android/hardware/media/c2/InfoBuffer.aidl
new file mode 100644
index 0000000..207c4d0
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/InfoBuffer.aidl
@@ -0,0 +1,36 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.Buffer;
+
+/**
+ * An extension of @ref Buffer that also contains a C2Param structure index.
+ *
+ * This is a part of @ref FrameData.
+ */
+@VintfStability
+parcelable InfoBuffer {
+    /**
+     * A C2Param structure index.
+     */
+    int index;
+    /**
+     * Associated @ref Buffer object.
+     */
+    Buffer buffer;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/ParamDescriptor.aidl b/media/c2/aidl/android/hardware/media/c2/ParamDescriptor.aidl
new file mode 100644
index 0000000..84c6acc
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/ParamDescriptor.aidl
@@ -0,0 +1,73 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+/**
+ * Usage description of a C2Param structure.
+ *
+ * @ref ParamDescriptor is returned by IConfigurable::querySupportedParams().
+ */
+@VintfStability
+parcelable ParamDescriptor {
+    /** The list of bit flags for attrib */
+    /**
+     * The parameter is required to be specified.
+     */
+    const int ATTRIBUTE_REQUIRED = 1 << 0;
+    /**
+     * The parameter retains its value.
+     */
+    const int ATTRIBUTE_PERSISTENT = 1 << 1;
+    /**
+     * The parameter is strict.
+     */
+    const int ATTRIBUTE_STRICT = 1 << 2;
+    /**
+     * The parameter is publicly read-only.
+     */
+    const int ATTRIBUTE_READ_ONLY = 1 << 3;
+    /**
+     * The parameter must not be visible to clients.
+     */
+    const int ATTRIBUTE_HIDDEN = 1 << 4;
+    /**
+     * The parameter must not be used by framework (other than testing).
+     */
+    const int ATTRIBUTE_INTERNAL = 1 << 5;
+    /**
+     * The parameter is publicly constant (hence read-only).
+     */
+    const int ATTRIBUTE_CONST = 1 << 6;
+
+    /**
+     * Index of the C2Param structure being described.
+     */
+    int index;
+    /**
+     * bit flag for attribute defined in the above.
+     */
+    int attrib;
+    /**
+     * Name of the structure. This must be unique for each structure.
+     */
+    String name;
+    /**
+     * Indices of other C2Param structures that this C2Param structure depends
+     * on.
+     */
+    int[] dependencies;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/ParamField.aidl b/media/c2/aidl/android/hardware/media/c2/ParamField.aidl
new file mode 100644
index 0000000..64a46bb
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/ParamField.aidl
@@ -0,0 +1,34 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.FieldId;
+
+/**
+ * Reference to a field in a C2Param structure.
+ */
+@VintfStability
+parcelable ParamField {
+    /**
+     * Index of the C2Param structure.
+     */
+    int index;
+    /**
+     * Identifier of the field inside the C2Param structure.
+     */
+    FieldId fieldId;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/ParamFieldValues.aidl b/media/c2/aidl/android/hardware/media/c2/ParamFieldValues.aidl
new file mode 100644
index 0000000..7b74c0e
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/ParamFieldValues.aidl
@@ -0,0 +1,43 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.FieldSupportedValues;
+import android.hardware.media.c2.ParamField;
+
+/**
+ * Supported values for a field.
+ *
+ * This is a pair of the field specifier together with an optional supported
+ * values object. This structure is used when reporting parameter configuration
+ * failures and conflicts.
+ */
+@VintfStability
+parcelable ParamFieldValues {
+    /**
+     * Reference to a field or a C2Param structure.
+     */
+    ParamField paramOrField;
+    /**
+     * Optional supported values for the field if #paramOrField specifies an
+     * actual field that is numeric (non struct, blob or string). Supported
+     * values for arrays (including string and blobs) describe the supported
+     * values for each element (character for string, and bytes for blobs). It
+     * is optional for read-only strings and blobs.
+     */
+    FieldSupportedValues[] values;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/Params.aidl b/media/c2/aidl/android/hardware/media/c2/Params.aidl
new file mode 100644
index 0000000..53b512c
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/Params.aidl
@@ -0,0 +1,36 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+/**
+ * Flattened representation of std::vector<C2Param> object.
+ *
+ * The `Params` type is an array of bytes made up by concatenating a list of
+ * C2Param objects. The start index (offset into @ref Params) of each C2Param
+ * object in the list is divisible by 8. Up to 7 padding bytes may be added
+ * after each C2Param object to achieve this 64-bit alignment.
+ *
+ * Each C2Param object has the following layout:
+ * - 4 bytes: C2Param structure index (of type @ref ParamIndex) identifying the
+ *   type of the C2Param object.
+ * - 4 bytes: size of the C2Param object (unsigned 4-byte integer).
+ * - (size - 8) bytes: data of the C2Param object.
+ */
+@VintfStability
+parcelable Params {
+    byte[] params;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/SettingResult.aidl b/media/c2/aidl/android/hardware/media/c2/SettingResult.aidl
new file mode 100644
index 0000000..c2b9574
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/SettingResult.aidl
@@ -0,0 +1,99 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.ParamFieldValues;
+
+/**
+ * Information describing the reason the parameter settings may fail, or may be
+ * overridden.
+ */
+@VintfStability
+parcelable SettingResult {
+    /**
+     * Failure code
+     */
+    @VintfStability
+    @Backing(type="int")
+    enum Failure {
+        /**
+         * Parameter is not supported.
+         */
+        BAD_TYPE,
+        /**
+         * Parameter is not supported on the specific port.
+         */
+        BAD_PORT,
+        /**
+         * Parameter is not supported on the specific stream.
+         */
+        BAD_INDEX,
+        /**
+         * Parameter is read-only and cannot be set.
+         */
+        READ_ONLY,
+        /**
+         * Parameter mismatches input data.
+         */
+        MISMATCH,
+        /**
+         * Strict parameter does not accept value for the field at all.
+         */
+        BAD_VALUE,
+        /**
+         * Strict parameter field value is in conflict with an/other
+         * setting(s).
+         */
+        CONFLICT,
+        /**
+         * Parameter field is out of range due to other settings. (This failure
+         * mode can only be used for strict calculated parameters.)
+         */
+        UNSUPPORTED,
+        /**
+         * Field does not access the requested parameter value at all. It has
+         * been corrected to the closest supported value. This failure mode is
+         * provided to give guidance as to what are the currently supported
+         * values for this field (which may be a subset of the at-all-potential
+         * values).
+         */
+        INFO_BAD_VALUE,
+        /**
+         * Requested parameter value is in conflict with an/other setting(s)
+         * and has been corrected to the closest supported value. This failure
+         * mode is given to provide guidance as to what are the currently
+         * supported values as well as to optionally provide suggestion to the
+         * client as to how to enable the requested parameter value.
+         */
+        INFO_CONFLICT,
+    }
+    Failure failure;
+    /**
+     * Failing (or corrected) field or parameter and optionally, currently
+     * supported values for the field. Values must only be set for field
+     * failures other than `BAD_VALUE`, and only if they are different from the
+     * globally supported values (e.g. due to restrictions by another parameter
+     * or input data).
+     */
+    ParamFieldValues field;
+    /**
+     * Conflicting parameters or fields with (optional) suggested values for any
+     * conflicting fields to avoid the conflict. Values must only be set for
+     * `CONFLICT`, `UNSUPPORTED` or `INFO_CONFLICT` failure code.
+     */
+    ParamFieldValues[] conflicts;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/Status.aidl b/media/c2/aidl/android/hardware/media/c2/Status.aidl
new file mode 100644
index 0000000..58a2404
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/Status.aidl
@@ -0,0 +1,82 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+/**
+ * Common return values for Codec2 operations.
+ */
+@VintfStability
+parcelable Status {
+    /**
+     * Operation completed successfully.
+     */
+    const int OK = 0;
+    /**
+     * Argument has invalid value (user error).
+     */
+    const int BAD_VALUE = -22;
+    /**
+     * Argument uses invalid index (user error).
+     */
+    const int BAD_INDEX = -75;
+    /**
+     * Argument/Index is valid but not possible.
+     */
+    const int CANNOT_DO = -2147483646;
+    /**
+     * Object already exists.
+     */
+    const int DUPLICATE = -17;
+    /**
+     * Object not found.
+     */
+    const int NOT_FOUND = -2;
+    /**
+     * Operation is not permitted in the current state.
+     */
+    const int BAD_STATE = -38;
+    /**
+     * Operation would block but blocking is not permitted.
+     */
+    const int BLOCKING = -9930;
+    /**
+     * Not enough memory to complete operation.
+     */
+    const int NO_MEMORY = -12;
+    /**
+     * Missing permission to complete operation.
+     */
+    const int REFUSED = -1;
+    /**
+     * Operation did not complete within timeout.
+     */
+    const int TIMED_OUT = -110;
+    /**
+     * Operation is not implemented/supported (optional only).
+     */
+    const int OMITTED = -74;
+    /**
+     * Some unexpected error prevented the operation.
+     */
+    const int CORRUPTED = -2147483648;
+    /**
+     * Status has not been initialized.
+     */
+    const int NO_INIT = -19;
+
+    int status;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/StructDescriptor.aidl b/media/c2/aidl/android/hardware/media/c2/StructDescriptor.aidl
new file mode 100644
index 0000000..00359041
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/StructDescriptor.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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.FieldDescriptor;
+
+/**
+ * Description of a C2Param structure. It consists of an index and a list of
+ * `FieldDescriptor`s.
+ */
+@VintfStability
+parcelable StructDescriptor {
+    /**
+     * Index of the structure.
+     *
+     * Actually C2Param::CoreIndex
+     * Core index is the underlying parameter type for a parameter. It is used to describe the
+     * layout of the parameter structure regardless of the component or parameter kind/scope.
+     *
+     * It is used to identify and distinguish global parameters, and also parameters on a given
+     * port or stream. They must be unique for the set of global parameters, as well as for the
+     * set of parameters on each port or each stream, but the same core index can be used for
+     * parameters on different streams or ports, as well as for global parameters and port/stream
+     * parameters.
+     */
+    int type;
+    /**
+     * List of fields in the structure.
+     *
+     * Fields are ordered by their offsets. A field that is a structure is
+     * ordered before its members.
+     */
+    FieldDescriptor[] fields;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/SurfaceSyncObj.aidl b/media/c2/aidl/android/hardware/media/c2/SurfaceSyncObj.aidl
new file mode 100644
index 0000000..d20e102
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/SurfaceSyncObj.aidl
@@ -0,0 +1,55 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.common.NativeHandle;
+/**
+ * Surface(BufferQueue/IGBP) synchronization object regarding # of dequeued
+ * output buffers. This keeps # of dequeued buffers from Surface less than
+ * configured max # of dequeued buffers all the time.
+ */
+@VintfStability
+parcelable SurfaceSyncObj {
+    /**
+     * ASharedMemory for synchronization data. Layout is below
+     *
+     * |lock(futex)                               4bytes|
+     * |conditional_variable(futex)               4bytes|
+     * |# of max dequeable buffer                 4bytes|
+     * |# of dequeued buffer                      4bytes|
+     * |Status of the surface                     4bytes|
+     *      INIT        = 0, Configuring surface is not finished.
+     *      ACTIVE      = 1, Surface is ready to allocate(dequeue).
+     *      SWITCHING   = 2, Switching to the new surface. It is blocked
+     *                       to allocate(dequeue) a buffer until switching
+     *                       completes.
+     */
+    NativeHandle syncMemory;
+    /**
+     * BufferQueue id.
+     */
+    long bqId;
+    /**
+     * Generation id.
+     */
+    int generationId;
+    /**
+     * Consumer usage flags. See +ndk
+     * libnativewindow#AHardwareBuffer_UsageFlags for possible values.
+     */
+    long consumerUsage;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/ValueRange.aidl b/media/c2/aidl/android/hardware/media/c2/ValueRange.aidl
new file mode 100644
index 0000000..9abcb7d
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/ValueRange.aidl
@@ -0,0 +1,63 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+/**
+ * Description of a set of values.
+ *
+ * If the `step` member is 0, and `num` and `denom` are both 1, the `Range`
+ * structure represents a closed interval bounded by `min` and `max`.
+ *
+ * Otherwise, the #ValueRange structure represents a finite sequence of numbers
+ * produced from the following recurrence relation:
+ *
+ * @code
+ * v[0] = min
+ * v[i] = v[i - 1] * num / denom + step ; i >= 1
+ * @endcode
+ *
+ * Both the ratio `num / denom` and the value `step` must be positive. The
+ * last number in the sequence described by this #Range structure is the
+ * largest number in the sequence that is smaller than or equal to `max`.
+ *
+ * @note
+ * The division in the formula may truncate the result if the data type of
+ * these values is an integral type.
+ */
+@VintfStability
+parcelable ValueRange {
+    /**
+     * Lower end of the range (inclusive).
+     */
+    long min;
+    /**
+     * Upper end of the range (inclusive).
+     */
+    long max;
+    /**
+     * The non-homogeneous term in the recurrence relation.
+     */
+    long step;
+    /**
+     * The numerator of the scale coefficient in the recurrence relation.
+     */
+    long num;
+    /**
+     * The denominator of the scale coefficient in the recurrence relation.
+     */
+    long denom;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/Work.aidl b/media/c2/aidl/android/hardware/media/c2/Work.aidl
new file mode 100644
index 0000000..4b8d696
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/Work.aidl
@@ -0,0 +1,83 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.FrameData;
+import android.hardware.media.c2.Status;
+import android.hardware.media.c2.Worklet;
+
+/**
+ * A collection of input data to and output data from the component.
+ *
+ * A `Work` object holds information about a single work item. It is created by
+ * the client and passed to the component via IComponent::queue(). The component
+ * has two ways of returning a `Work` object to the client:
+ *   1. If the queued `Work` object has been successfully processed,
+ *      IComponentListener::onWorkDone() shall be called to notify the listener,
+ *      and the output shall be included in the returned `Work` object.
+ *   2. If the client calls IComponent::flush(), a `Work` object that has not
+ *      been processed shall be returned.
+ *
+ * `Work` is a part of @ref WorkBundle.
+ */
+@VintfStability
+parcelable Work {
+    /**
+     * Additional work chain info not part of this work.
+     */
+    byte[] chainInfo;
+    /**
+     * @ref FrameData for the input.
+     */
+    FrameData input;
+    /**
+     * The chain of `Worklet`s.
+     *
+     * The length of #worklets is 1 when tunneling is not enabled.
+     *
+     * If #worklets has more than a single element, the tunnels between
+     * successive components of the work chain must have been successfully
+     * pre-registered at the time that the `Work` is submitted. Allocating the
+     * output buffers in the `Worklet`s is the responsibility of each component
+     * in the chain.
+     *
+     * Upon `Work` submission, #worklets must be an appropriately sized vector
+     * containing `Worklet`s with @ref Worklet.hasOutput set to `false`. After a
+     * successful processing, all but the final `Worklet` in the returned
+     * #worklets must have @ref Worklet.hasOutput set to `false`.
+     */
+    Worklet[] worklets;
+    /**
+     * The number of `Worklet`s successfully processed in this chain.
+     *
+     * This must be initialized to 0 by the client when the `Work` is submitted,
+     * and it must contain the number of `Worklet`s that were successfully
+     * processed when the `Work` is returned to the client.
+     *
+     * #workletsProcessed cannot exceed the length of #worklets. If
+     * #workletsProcessed is smaller than the length of #worklets, #result
+     * cannot be `OK`.
+     */
+    int workletsProcessed;
+    /**
+     * The final outcome of the `Work` (corresponding to #workletsProcessed).
+     *
+     * The value of @ref Status.OK implies that all `Worklet`s have been
+     * successfully processed.
+     */
+    Status result;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/WorkBundle.aidl b/media/c2/aidl/android/hardware/media/c2/WorkBundle.aidl
new file mode 100644
index 0000000..2125fda
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/WorkBundle.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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.BaseBlock;
+import android.hardware.media.c2.Work;
+
+/**
+ * List of `Work` objects.
+ *
+ * `WorkBundle` is used in IComponent::queue(), IComponent::flush() and
+ * IComponentListener::onWorkDone(). A `WorkBundle` object consists of a list of
+ * `Work` objects and a list of `BaseBlock` objects. Bundling multiple `Work`
+ * objects together provides two benefits:
+ *   1. Batching of `Work` objects can reduce the number of IPC calls.
+ *   2. If multiple `Work` objects contain `Block`s that refer to the same
+ *      `BaseBlock`, the number of `BaseBlock`s that is sent between processes
+ *      is also reduced.
+ *
+ * @note `WorkBundle` is the AIDL counterpart of the vector of `C2Work` in the
+ * Codec 2.0 standard. The presence of #baseBlocks helps with minimizing the
+ * data transferred over an IPC.
+ */
+@VintfStability
+parcelable WorkBundle {
+    /**
+     * A list of Work items.
+     */
+    Work[] works;
+    /**
+     * A list of blocks indexed by elements of #works.
+     */
+    BaseBlock[] baseBlocks;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/WorkOrdinal.aidl b/media/c2/aidl/android/hardware/media/c2/WorkOrdinal.aidl
new file mode 100644
index 0000000..5708a90
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/WorkOrdinal.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.
+ */
+
+package android.hardware.media.c2;
+
+/**
+ * Ordering information of @ref FrameData objects. Each member is used for
+ * comparing urgency: a smaller difference from a reference value indicates that
+ * the associated Work object is more urgent. The reference value for each
+ * member is initialized the first time it is communicated between the client
+ * and the codec, and it may be updated to later values that are communicated.
+ *
+ * Each member of `WorkOrdinal` is stored as an unsigned integer, but the actual
+ * order it represents is derived by subtracting the reference value, then
+ * interpreting the result as a signed number with the same storage size (using
+ * two's complement).
+ *
+ * @note `WorkOrdinal` is the HIDL counterpart of `C2WorkOrdinalStruct` in the
+ * Codec 2.0 standard.
+ */
+@VintfStability
+parcelable WorkOrdinal {
+    /**
+     * Timestamp in microseconds.
+     */
+    long timestampUs;
+    /**
+     * Frame index.
+     */
+    long frameIndex;
+    /**
+     * Component specific frame ordinal.
+     */
+    long customOrdinal;
+}
diff --git a/media/c2/aidl/android/hardware/media/c2/Worklet.aidl b/media/c2/aidl/android/hardware/media/c2/Worklet.aidl
new file mode 100644
index 0000000..6b3ceac
--- /dev/null
+++ b/media/c2/aidl/android/hardware/media/c2/Worklet.aidl
@@ -0,0 +1,54 @@
+/*
+ * 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.
+ */
+
+package android.hardware.media.c2;
+
+import android.hardware.media.c2.FrameData;
+import android.hardware.media.c2.SettingResult;
+
+/**
+ * In/out structure containing some instructions for and results from output
+ * processing.
+ *
+ * This is a part of @ref Work. One `Worklet` corresponds to one output
+ * @ref FrameData. The client must construct an original `Worklet` object inside
+ * a @ref Work object for each expected output before calling
+ * IComponent::queue().
+ */
+@VintfStability
+parcelable Worklet {
+    /**
+     * Component id. (Input)
+     *
+     * This is used only when tunneling is enabled.
+     *
+     * When used, this must match the return value from IConfigurable::getId().
+     */
+    int componentId;
+    /**
+     * List of C2Param objects describing tunings to be applied before
+     * processing this `Worklet`. (Input)
+     */
+    byte[] tunings;
+    /**
+     * List of failures. (Output)
+     */
+    SettingResult[] failures;
+    /**
+     * Output frame data. (Output)
+     */
+    FrameData output;
+}