diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 716b550..1f7083b 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -11,3 +11,4 @@
 clang_format = --commit ${PREUPLOAD_COMMIT} --style file --extensions c,h,cc,cpp
                media/libmediatranscoding/
                services/mediatranscoding/
+               media/libaudioclient/tests/
diff --git a/camera/VendorTagDescriptor.cpp b/camera/VendorTagDescriptor.cpp
index b37803a..151b653 100644
--- a/camera/VendorTagDescriptor.cpp
+++ b/camera/VendorTagDescriptor.cpp
@@ -598,7 +598,6 @@
 status_t VendorTagDescriptor::setAsGlobalVendorTagDescriptor(const sp<VendorTagDescriptor>& desc) {
     status_t res = OK;
     Mutex::Autolock al(sLock);
-    sGlobalVendorTagDescriptor = desc;
 
     vendor_tag_ops_t* opsPtr = NULL;
     if (desc != NULL) {
@@ -613,6 +612,9 @@
         ALOGE("%s: Could not set vendor tag descriptor, received error %s (%d)."
                 , __FUNCTION__, strerror(-res), res);
     }
+
+    sGlobalVendorTagDescriptor = desc;
+
     return res;
 }
 
@@ -631,7 +633,6 @@
         const sp<VendorTagDescriptorCache>& cache) {
     status_t res = OK;
     Mutex::Autolock al(sLock);
-    sGlobalVendorTagDescriptorCache = cache;
 
     struct vendor_tag_cache_ops* opsPtr = NULL;
     if (cache != NULL) {
@@ -646,6 +647,9 @@
         ALOGE("%s: Could not set vendor tag cache, received error %s (%d)."
                 , __FUNCTION__, strerror(-res), res);
     }
+
+    sGlobalVendorTagDescriptorCache = cache;
+
     return res;
 }
 
diff --git a/camera/cameraserver/cameraserver.rc b/camera/cameraserver/cameraserver.rc
index 8f51458..6a311f2 100644
--- a/camera/cameraserver/cameraserver.rc
+++ b/camera/cameraserver/cameraserver.rc
@@ -5,3 +5,4 @@
     ioprio rt 4
     task_profiles CameraServiceCapacity MaxPerformance
     rlimit rtprio 10 10
+    onrestart class_restart cameraWatchdog
diff --git a/cmds/screenrecord/screenrecord.cpp b/cmds/screenrecord/screenrecord.cpp
index 2e0b678..b277bed 100644
--- a/cmds/screenrecord/screenrecord.cpp
+++ b/cmds/screenrecord/screenrecord.cpp
@@ -1026,7 +1026,8 @@
         "    Add additional information, such as a timestamp overlay, that is helpful\n"
         "    in videos captured to illustrate bugs.\n"
         "--time-limit TIME\n"
-        "    Set the maximum recording time, in seconds.  Default / maximum is %d.\n"
+        "    Set the maximum recording time, in seconds.  Default is %d. Set to 0\n"
+        "    to remove the time limit.\n"
         "--display-id ID\n"
         "    specify the physical display ID to record. Default is the primary display.\n"
         "    see \"dumpsys SurfaceFlinger --display-id\" for valid display IDs.\n"
@@ -1113,14 +1114,27 @@
             }
             break;
         case 't':
-            gTimeLimitSec = atoi(optarg);
-            if (gTimeLimitSec == 0 || gTimeLimitSec > kMaxTimeLimitSec) {
-                fprintf(stderr,
-                        "Time limit %ds outside acceptable range [1,%d]\n",
-                        gTimeLimitSec, kMaxTimeLimitSec);
+        {
+            char *next;
+            const int64_t timeLimitSec = strtol(optarg, &next, 10);
+            if (next == optarg || (*next != '\0' && *next != ' ')) {
+                fprintf(stderr, "Error parsing time limit argument\n");
                 return 2;
             }
+            if (timeLimitSec > std::numeric_limits<uint32_t>::max() || timeLimitSec < 0) {
+                fprintf(stderr,
+                        "Time limit %" PRIi64 "s outside acceptable range [0,%u] seconds\n",
+                        timeLimitSec, std::numeric_limits<uint32_t>::max());
+                return 2;
+            }
+            gTimeLimitSec = (timeLimitSec == 0) ?
+                    std::numeric_limits<uint32_t>::max() : timeLimitSec;
+            if (gVerbose) {
+                printf("Time limit set to %u seconds\n", gTimeLimitSec);
+                fflush(stdout);
+            }
             break;
+        }
         case 'u':
             gWantInfoScreen = true;
             gWantFrameTime = true;
diff --git a/drm/libmediadrm/DrmHalHidl.cpp b/drm/libmediadrm/DrmHalHidl.cpp
index c38dbef..055f20a 100644
--- a/drm/libmediadrm/DrmHalHidl.cpp
+++ b/drm/libmediadrm/DrmHalHidl.cpp
@@ -309,7 +309,7 @@
     closeOpenSessions();
 
     Mutex::Autolock autoLock(mLock);
-    reportFrameworkMetrics(reportPluginMetrics());
+    if (mInitCheck == OK) reportFrameworkMetrics(reportPluginMetrics());
 
     setListener(NULL);
     mInitCheck = NO_INIT;
diff --git a/drm/libmediadrm/DrmMetricsConsumer.cpp b/drm/libmediadrm/DrmMetricsConsumer.cpp
index c06f09b..fd095b7 100644
--- a/drm/libmediadrm/DrmMetricsConsumer.cpp
+++ b/drm/libmediadrm/DrmMetricsConsumer.cpp
@@ -42,7 +42,7 @@
         }
         return type_names[attribute];
     }
-    
+
     static const char *type_names[] = {"PROVISION_REQUIRED", "KEY_NEEDED",
                                        "KEY_EXPIRED", "VENDOR_DEFINED",
                                        "SESSION_RECLAIMED"};
diff --git a/drm/mediadrm/plugins/clearkey/aidl/Android.bp b/drm/mediadrm/plugins/clearkey/aidl/Android.bp
index 2d1f741..397e4c6 100644
--- a/drm/mediadrm/plugins/clearkey/aidl/Android.bp
+++ b/drm/mediadrm/plugins/clearkey/aidl/Android.bp
@@ -69,3 +69,78 @@
         "android.hardware.drm-service.clearkey",
     ],
 }
+
+cc_defaults {
+    name: "fuzz_aidl_clearkey_service_defaults",
+
+    srcs: [
+        "CreatePluginFactories.cpp",
+        "CryptoPlugin.cpp",
+        "DrmFactory.cpp",
+        "DrmPlugin.cpp",
+    ],
+
+    relative_install_path: "hw",
+
+    cflags: ["-Wall", "-Werror", "-Wthread-safety"],
+
+    include_dirs: ["frameworks/av/include"],
+
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "libcrypto",
+        "liblog",
+        "libprotobuf-cpp-lite",
+        "libutils",
+        "android.hardware.drm-V1-ndk",
+    ],
+
+    static_libs: [
+        "android.hardware.common-V2-ndk",
+        "libclearkeybase_fuzz",
+    ],
+
+    local_include_dirs: ["include"],
+
+    sanitize: {
+        integer_overflow: true,
+    },
+}
+
+cc_fuzz {
+    name: "android.hardware.drm-service.clearkey.aidl_fuzzer",
+    defaults: [
+        "fuzz_aidl_clearkey_service_defaults",
+    ],
+    static_libs: [
+        "libbase",
+        "libbinder_random_parcel",
+        "libcutils",
+        "liblog",
+        "libutils",
+    ],
+    target: {
+        android: {
+            shared_libs: [
+                "libbinder_ndk",
+                "libbinder",
+            ],
+        },
+        host: {
+            static_libs: [
+                "libbinder_ndk",
+                "libbinder",
+            ],
+        },
+        darwin: {
+            enabled: false,
+        },
+    },
+    srcs: ["fuzzer.cpp"],
+    fuzz_config: {
+        cc: [
+            "hamzeh@google.com",
+        ],
+    },
+}
\ No newline at end of file
diff --git a/drm/mediadrm/plugins/clearkey/aidl/fuzzer.cpp b/drm/mediadrm/plugins/clearkey/aidl/fuzzer.cpp
new file mode 100644
index 0000000..9ef331f
--- /dev/null
+++ b/drm/mediadrm/plugins/clearkey/aidl/fuzzer.cpp
@@ -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.
+ */
+#include <fuzzbinder/libbinder_ndk_driver.h>
+#include <fuzzer/FuzzedDataProvider.h>
+
+#include "CreatePluginFactories.h"
+
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+
+using ::aidl::android::hardware::drm::clearkey::createDrmFactory;
+using ::aidl::android::hardware::drm::clearkey::DrmFactory;
+
+using android::fuzzService;
+using ndk::SharedRefBase;
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+    std::shared_ptr<DrmFactory> drmFactory = createDrmFactory();
+    fuzzService(drmFactory->asBinder().get(),  FuzzedDataProvider(data, size));
+
+    return 0;
+}
diff --git a/drm/mediadrm/plugins/clearkey/common/Android.bp b/drm/mediadrm/plugins/clearkey/common/Android.bp
index a6a5b28..6913df4 100644
--- a/drm/mediadrm/plugins/clearkey/common/Android.bp
+++ b/drm/mediadrm/plugins/clearkey/common/Android.bp
@@ -97,3 +97,54 @@
         integer_overflow: true,
     },
 }
+
+cc_library_static {
+    name: "libclearkeydevicefiles-protos.common_fuzz",
+
+    proto: {
+        export_proto_headers: true,
+        type: "lite",
+    },
+    srcs: ["protos/DeviceFiles.proto"],
+}
+
+cc_library_static {
+    name: "libclearkeybase_fuzz",
+
+    srcs: [
+        "AesCtrDecryptor.cpp",
+        "Base64.cpp",
+        "Buffer.cpp",
+        "ClearKeyUUID.cpp",
+        "DeviceFiles.cpp",
+        "InitDataParser.cpp",
+        "JsonWebKey.cpp",
+        "MemoryFileSystem.cpp",
+        "Session.cpp",
+        "SessionLibrary.cpp",
+        "Utils.cpp",
+    ],
+
+    cflags: ["-Wall", "-Werror"],
+
+    include_dirs: ["frameworks/av/include"],
+
+    shared_libs: [
+        "libutils",
+        "libcrypto",
+    ],
+
+    whole_static_libs: [
+        "libjsmn",
+        "libclearkeydevicefiles-protos.common_fuzz",
+    ],
+
+    export_include_dirs: [
+        "include",
+        "include/clearkeydrm",
+    ],
+
+    sanitize: {
+        integer_overflow: true,
+    },
+}
diff --git a/drm/mediadrm/plugins/clearkey/hidl/DrmPlugin.cpp b/drm/mediadrm/plugins/clearkey/hidl/DrmPlugin.cpp
index 32d7723..4e82f57 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/DrmPlugin.cpp
+++ b/drm/mediadrm/plugins/clearkey/hidl/DrmPlugin.cpp
@@ -619,6 +619,8 @@
         return Void();
     }
 
+    android_errorWriteLog(0x534e4554, "235601882");
+    Mutex::Autolock lock(mSecurityLevelLock);
     std::map<std::vector<uint8_t>, SecurityLevel>::iterator itr =
             mSecurityLevel.find(sid);
     if (itr == mSecurityLevel.end()) {
@@ -691,6 +693,8 @@
         return Status::ERROR_DRM_SESSION_NOT_OPENED;
     }
 
+    android_errorWriteLog(0x534e4554, "235601882");
+    Mutex::Autolock lock(mSecurityLevelLock);
     std::map<std::vector<uint8_t>, SecurityLevel>::iterator itr =
             mSecurityLevel.find(sid);
     if (itr != mSecurityLevel.end()) {
diff --git a/drm/mediadrm/plugins/clearkey/hidl/include/DrmPlugin.h b/drm/mediadrm/plugins/clearkey/hidl/include/DrmPlugin.h
index cb5c9fe..274a89a 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/include/DrmPlugin.h
+++ b/drm/mediadrm/plugins/clearkey/hidl/include/DrmPlugin.h
@@ -414,7 +414,6 @@
     std::map<std::string, std::vector<uint8_t> > mByteArrayProperties;
     std::map<std::string, std::vector<uint8_t> > mReleaseKeysMap;
     std::map<std::vector<uint8_t>, std::string> mPlaybackId;
-    std::map<std::vector<uint8_t>, SecurityLevel> mSecurityLevel;
     sp<IDrmPluginListener> mListener;
     sp<IDrmPluginListener_V1_2> mListenerV1_2;
     SessionLibrary *mSessionLibrary;
@@ -434,6 +433,9 @@
 
     DeviceFiles mFileHandle;
     Mutex mSecureStopLock;
+    Mutex mSecurityLevelLock;
+    std::map<std::vector<uint8_t>, SecurityLevel> mSecurityLevel
+        GUARDED_BY(mSecurityLevelLock);
 
     CLEARKEY_DISALLOW_COPY_AND_ASSIGN_AND_NEW(DrmPlugin);
 };
diff --git a/include/media/MmapStreamCallback.h b/include/media/MmapStreamCallback.h
index 31b8eb5..76ee6d7 100644
--- a/include/media/MmapStreamCallback.h
+++ b/include/media/MmapStreamCallback.h
@@ -37,12 +37,9 @@
 
     /**
      * The volume to be applied to the use case specified when opening the stream has changed
-     * \param[in] channels a channel mask containing all channels the volume should be applied to.
-     * \param[in] values the volume values to be applied to each channel. The size of the vector
-     *                   should correspond to the channel count retrieved with
-     *                   audio_channel_count_from_in_mask() or audio_channel_count_from_out_mask()
+     * \param[in] volume the new target volume
      */
-    virtual void onVolumeChanged(audio_channel_mask_t channels, Vector<float> values) = 0;
+    virtual void onVolumeChanged(float volume) = 0;
 
     /**
      * The device the stream is routed to/from has changed
diff --git a/include/private/media/VideoFrame.h b/include/private/media/VideoFrame.h
index d4025e5..97e0b1d 100644
--- a/include/private/media/VideoFrame.h
+++ b/include/private/media/VideoFrame.h
@@ -85,8 +85,6 @@
     uint32_t mSize;            // Number of bytes of frame data
     uint32_t mIccSize;         // Number of bytes of ICC data
     uint32_t mBitDepth;        // number of bits per R / G / B channel
-
-    // Adding new items must be 64-bit aligned.
 };
 
 }; // namespace android
diff --git a/media/TEST_MAPPING b/media/TEST_MAPPING
index d989fa3..3f7cb3c 100644
--- a/media/TEST_MAPPING
+++ b/media/TEST_MAPPING
@@ -71,4 +71,6 @@
         }
     ]
 
+    // TODO (b/229286407) Add EncodeDecodeTest and DecodeEditEncodeTest to
+    // platinum-postsubmit once issues in cuttlefish are fixed
 }
diff --git a/media/audioserver/audioserver.rc b/media/audioserver/audioserver.rc
index c4a6601..0bd0d88 100644
--- a/media/audioserver/audioserver.rc
+++ b/media/audioserver/audioserver.rc
@@ -7,11 +7,9 @@
     ioprio rt 4
     task_profiles ProcessCapacityHigh HighPerformance
     onrestart restart vendor.audio-hal
+    onrestart restart vendor.audio-hal-aidl
     onrestart restart vendor.audio-hal-4-0-msd
     onrestart restart audio_proxy_service
-    # Keep the original service names for backward compatibility
-    onrestart restart vendor.audio-hal-2-0
-    onrestart restart audio-hal-2-0
 
 on property:vts.native_server.on=1
     stop audioserver
@@ -20,42 +18,34 @@
 
 on property:init.svc.audioserver=stopped
     stop vendor.audio-hal
+    stop vendor.audio-hal-aidl
     stop vendor.audio-hal-4-0-msd
     stop audio_proxy_service
-    # Keep the original service names for backward compatibility
-    stop vendor.audio-hal-2-0
-    stop audio-hal-2-0
     # See b/155364397. Need to have HAL service running for VTS.
     # Can't use 'restart' because then HAL service would restart
     # audioserver bringing it back into running state.
     start vendor.audio-hal
+    start vendor.audio-hal-aidl
     start vendor.audio-hal-4-0-msd
     start audio_proxy_service
-    # Keep the original service names for backward compatibility
-    start vendor.audio-hal-2-0
-    start audio-hal-2-0
 
 on property:init.svc.audioserver=running
     start vendor.audio-hal
+    start vendor.audio-hal-aidl
     start vendor.audio-hal-4-0-msd
     start audio_proxy_service
-    # Keep the original service names for backward compatibility
-    start vendor.audio-hal-2-0
-    start audio-hal-2-0
 
 on property:sys.audio.restart.hal=1
     # See b/159966243. Avoid restart loop between audioserver and HAL.
     # Keep the original service names for backward compatibility
     stop vendor.audio-hal
+    stop vendor.audio-hal-aidl
     stop vendor.audio-hal-4-0-msd
     stop audio_proxy_service
-    stop vendor.audio-hal-2-0
-    stop audio-hal-2-0
     start vendor.audio-hal
+    start vendor.audio-hal-aidl
     start vendor.audio-hal-4-0-msd
     start audio_proxy_service
-    start vendor.audio-hal-2-0
-    start audio-hal-2-0
     # reset the property
     setprop sys.audio.restart.hal 0
 
diff --git a/media/codec2/components/vpx/C2SoftVpxDec.cpp b/media/codec2/components/vpx/C2SoftVpxDec.cpp
index 8087396..18cd1bf 100644
--- a/media/codec2/components/vpx/C2SoftVpxDec.cpp
+++ b/media/codec2/components/vpx/C2SoftVpxDec.cpp
@@ -69,8 +69,8 @@
                 DefineParam(mSize, C2_PARAMKEY_PICTURE_SIZE)
                 .withDefault(new C2StreamPictureSizeInfo::output(0u, 320, 240))
                 .withFields({
-                    C2F(mSize, width).inRange(2, 2048, 2),
-                    C2F(mSize, height).inRange(2, 2048, 2),
+                    C2F(mSize, width).inRange(2, 2048),
+                    C2F(mSize, height).inRange(2, 2048),
                 })
                 .withSetter(SizeSetter)
                 .build());
@@ -734,7 +734,12 @@
     }
 
     C2MemoryUsage usage = { C2MemoryUsage::CPU_READ, C2MemoryUsage::CPU_WRITE };
-    c2_status_t err = pool->fetchGraphicBlock(align(mWidth, 16), mHeight, format, usage, &block);
+    // We always create a graphic block that is width aligned to 16 and height
+    // aligned to 2. We set the correct "crop" value of the image in the call to
+    // createGraphicBuffer() by setting the correct image dimensions.
+    c2_status_t err = pool->fetchGraphicBlock(align(mWidth, 16),
+                                              align(mHeight, 2), format, usage,
+                                              &block);
     if (err != C2_OK) {
         ALOGE("fetchGraphicBlock for Output failed with status %d", err);
         work->result = err;
diff --git a/media/codec2/hidl/plugin/samples/SampleFilterPlugin.cpp b/media/codec2/hidl/plugin/samples/SampleFilterPlugin.cpp
index c8997bb..c77eb22 100644
--- a/media/codec2/hidl/plugin/samples/SampleFilterPlugin.cpp
+++ b/media/codec2/hidl/plugin/samples/SampleFilterPlugin.cpp
@@ -810,8 +810,6 @@
     // affectedParams
     {
         C2StreamHdrStaticInfo::output::PARAM_TYPE,
-        C2StreamHdr10PlusInfo::output::PARAM_TYPE,  // will be deprecated
-        C2StreamHdrDynamicMetadataInfo::output::PARAM_TYPE,
         C2StreamColorAspectsInfo::output::PARAM_TYPE,
     },
 };
diff --git a/media/codec2/sfplugin/CCodecConfig.cpp b/media/codec2/sfplugin/CCodecConfig.cpp
index 5208be6..cfadc95 100644
--- a/media/codec2/sfplugin/CCodecConfig.cpp
+++ b/media/codec2/sfplugin/CCodecConfig.cpp
@@ -389,7 +389,7 @@
             // read back always as int
             float value;
             if (v.get(&value)) {
-                return (int32_t)value;
+                return (int32_t) (value + 0.5);
             }
             return C2Value();
         }));
@@ -955,7 +955,7 @@
         .limitTo(D::ENCODER & (D::CONFIG | D::PARAM)));
     add(ConfigMapper(KEY_FLAC_COMPRESSION_LEVEL, C2_PARAMKEY_COMPLEXITY, "value")
         .limitTo(D::AUDIO & D::ENCODER));
-    add(ConfigMapper("complexity", C2_PARAMKEY_COMPLEXITY, "value")
+    add(ConfigMapper(KEY_COMPLEXITY, C2_PARAMKEY_COMPLEXITY, "value")
         .limitTo(D::ENCODER & (D::CONFIG | D::PARAM)));
 
     add(ConfigMapper(KEY_GRID_COLUMNS, C2_PARAMKEY_TILE_LAYOUT, "columns")
diff --git a/media/libaaudio/include/aaudio/AAudio.h b/media/libaaudio/include/aaudio/AAudio.h
index 0c4a8f7..9ca24aa 100644
--- a/media/libaaudio/include/aaudio/AAudio.h
+++ b/media/libaaudio/include/aaudio/AAudio.h
@@ -103,7 +103,23 @@
      *
      * Available since API level 31.
      */
-    AAUDIO_FORMAT_PCM_I32
+    AAUDIO_FORMAT_PCM_I32,
+
+    /**
+     * This format is used for compressed audio wrapped in IEC61937 for HDMI
+     * or S/PDIF passthrough.
+     *
+     * Unlike PCM playback, the Android framework is not able to do format
+     * conversion for IEC61937. In that case, when IEC61937 is requested, sampling
+     * rate and channel count or channel mask must be specified. Otherwise, it may
+     * fail when opening the stream. Apps are able to get the correct configuration
+     * for the playback by calling
+     * <a href="/reference/android/media/AudioManager#getDevices(int)">
+     *   AudioManager#getDevices(int)</a>.
+     *
+     * Available since API level 34.
+     */
+    AAUDIO_FORMAT_IEC61937
 
 };
 typedef int32_t aaudio_format_t;
@@ -1157,7 +1173,10 @@
  * in the streams current data format to the audioData buffer.
  *
  * For an input stream, this function should read and process numFrames of data
- * from the audioData buffer.
+ * from the audioData buffer. The data in the audioData buffer must not be modified
+ * directly. Instead, it should be copied to another buffer before doing any modification.
+ * In many cases, writing to the audioData buffer of an input stream will result in a
+ * native exception.
  *
  * The audio data is passed through the buffer. So do NOT call AAudioStream_read() or
  * AAudioStream_write() on the stream that is making the callback.
@@ -1441,7 +1460,10 @@
 /**
  * Asynchronous request for the stream to flush.
  * Flushing will discard any pending data.
- * This call only works if the stream is pausing or paused. TODO review
+ * This call only works if the stream is OPEN, PAUSED, STOPPED, or FLUSHED.
+ * Calling this function when in other states,
+ * or calling from an AAudio callback function,
+ * will have no effect and an error will be returned.
  * Frame counters are not reset by a flush. They may be advanced.
  * After this call the state will be in {@link #AAUDIO_STREAM_STATE_FLUSHING} or
  * {@link #AAUDIO_STREAM_STATE_FLUSHED}.
diff --git a/media/libaaudio/include/aaudio/AAudioTesting.h b/media/libaaudio/include/aaudio/AAudioTesting.h
index 0f2d7a2..01d97b6 100644
--- a/media/libaaudio/include/aaudio/AAudioTesting.h
+++ b/media/libaaudio/include/aaudio/AAudioTesting.h
@@ -87,7 +87,7 @@
  * @note This is only for testing. Do not use this in an application.
  * It may change or be removed at any time.
  *
- * @return true if the stream uses ther MMAP data path
+ * @return true if the stream uses the MMAP data path
  */
 AAUDIO_API bool AAudioStream_isMMapUsed(AAudioStream* stream);
 
diff --git a/media/libaaudio/src/client/AudioStreamInternal.cpp b/media/libaaudio/src/client/AudioStreamInternal.cpp
index 9f0564f..34ecd25 100644
--- a/media/libaaudio/src/client/AudioStreamInternal.cpp
+++ b/media/libaaudio/src/client/AudioStreamInternal.cpp
@@ -605,13 +605,6 @@
     return AAUDIO_ERROR_INVALID_STATE;
 }
 
-aaudio_result_t AudioStreamInternal::updateStateMachine() {
-    if (isDataCallbackActive()) {
-        return AAUDIO_OK; // state is getting updated by the callback thread read/write call
-    }
-    return processCommands();
-}
-
 void AudioStreamInternal::logTimestamp(AAudioServiceMessage &command) {
     static int64_t oldPosition = 0;
     static int64_t oldTime = 0;
diff --git a/media/libaaudio/src/client/AudioStreamInternal.h b/media/libaaudio/src/client/AudioStreamInternal.h
index 2367572..4ea61d2 100644
--- a/media/libaaudio/src/client/AudioStreamInternal.h
+++ b/media/libaaudio/src/client/AudioStreamInternal.h
@@ -48,7 +48,7 @@
                                        int64_t *framePosition,
                                        int64_t *timeNanoseconds) override;
 
-    virtual aaudio_result_t updateStateMachine() override;
+    virtual aaudio_result_t processCommands() override;
 
     aaudio_result_t open(const AudioStreamBuilder &builder) override;
 
@@ -110,8 +110,6 @@
 
     aaudio_result_t drainTimestampsFromService();
 
-    aaudio_result_t processCommands();
-
     aaudio_result_t stopCallback_l();
 
     virtual void prepareBuffersForStart() {}
diff --git a/media/libaaudio/src/core/AAudioStreamParameters.cpp b/media/libaaudio/src/core/AAudioStreamParameters.cpp
index 31fd011..e6b00d7 100644
--- a/media/libaaudio/src/core/AAudioStreamParameters.cpp
+++ b/media/libaaudio/src/core/AAudioStreamParameters.cpp
@@ -58,6 +58,7 @@
         case AUDIO_FORMAT_PCM_32_BIT:
         case AUDIO_FORMAT_PCM_FLOAT:
         case AUDIO_FORMAT_PCM_24_BIT_PACKED:
+        case AUDIO_FORMAT_IEC61937:
             break; // valid
         default:
             ALOGD("audioFormat not valid, audio_format_t = 0x%08x", format);
diff --git a/media/libaaudio/src/core/AudioGlobal.cpp b/media/libaaudio/src/core/AudioGlobal.cpp
index 0e5b8be..30f9677 100644
--- a/media/libaaudio/src/core/AudioGlobal.cpp
+++ b/media/libaaudio/src/core/AudioGlobal.cpp
@@ -82,6 +82,7 @@
         AAUDIO_CASE_ENUM(AAUDIO_FORMAT_PCM_FLOAT);
         AAUDIO_CASE_ENUM(AAUDIO_FORMAT_PCM_I24_PACKED);
         AAUDIO_CASE_ENUM(AAUDIO_FORMAT_PCM_I32);
+        AAUDIO_CASE_ENUM(AAUDIO_FORMAT_IEC61937);
     }
     return "Unrecognized";
 }
diff --git a/media/libaaudio/src/core/AudioStream.cpp b/media/libaaudio/src/core/AudioStream.cpp
index 06f05b0..8a5186a 100644
--- a/media/libaaudio/src/core/AudioStream.cpp
+++ b/media/libaaudio/src/core/AudioStream.cpp
@@ -21,7 +21,9 @@
 #include <atomic>
 #include <stdint.h>
 
+#include <linux/futex.h>
 #include <media/MediaMetricsItem.h>
+#include <sys/syscall.h>
 
 #include <aaudio/AAudio.h>
 
@@ -362,34 +364,37 @@
 }
 
 void AudioStream::setState(aaudio_stream_state_t state) {
-    ALOGD("%s(s#%d) from %d to %d", __func__, getId(), mState, state);
-    if (state == mState) {
+    aaudio_stream_state_t oldState = mState.load();
+    ALOGD("%s(s#%d) from %d to %d", __func__, getId(), oldState, state);
+    if (state == oldState) {
         return; // no change
     }
     // Track transition to DISCONNECTED state.
     if (state == AAUDIO_STREAM_STATE_DISCONNECTED) {
         android::mediametrics::LogItem(mMetricsId)
                 .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_DISCONNECT)
-                .set(AMEDIAMETRICS_PROP_STATE, AudioGlobal_convertStreamStateToText(getState()))
+                .set(AMEDIAMETRICS_PROP_STATE, AudioGlobal_convertStreamStateToText(oldState))
                 .record();
     }
     // CLOSED is a final state
-    if (mState == AAUDIO_STREAM_STATE_CLOSED) {
+    if (oldState == AAUDIO_STREAM_STATE_CLOSED) {
         ALOGW("%s(%d) tried to set to %d but already CLOSED", __func__, getId(), state);
 
     // Once CLOSING, we can only move to CLOSED state.
-    } else if (mState == AAUDIO_STREAM_STATE_CLOSING
+    } else if (oldState == AAUDIO_STREAM_STATE_CLOSING
                && state != AAUDIO_STREAM_STATE_CLOSED) {
         ALOGW("%s(%d) tried to set to %d but already CLOSING", __func__, getId(), state);
 
     // Once DISCONNECTED, we can only move to CLOSING or CLOSED state.
-    } else if (mState == AAUDIO_STREAM_STATE_DISCONNECTED
+    } else if (oldState == AAUDIO_STREAM_STATE_DISCONNECTED
                && !(state == AAUDIO_STREAM_STATE_CLOSING
                    || state == AAUDIO_STREAM_STATE_CLOSED)) {
         ALOGW("%s(%d) tried to set to %d but already DISCONNECTED", __func__, getId(), state);
 
     } else {
-        mState = state;
+        mState.store(state);
+        // Wake up a wakeForStateChange thread if it exists.
+        syscall(SYS_futex, &mState, FUTEX_WAKE_PRIVATE, INT_MAX, NULL, NULL, 0);
     }
 }
 
@@ -408,9 +413,15 @@
         if (durationNanos > timeoutNanoseconds) {
             durationNanos = timeoutNanoseconds;
         }
-        AudioClock::sleepForNanos(durationNanos);
-        timeoutNanoseconds -= durationNanos;
+        struct timespec time;
+        time.tv_sec = durationNanos / AAUDIO_NANOS_PER_SECOND;
+        // Add the fractional nanoseconds.
+        time.tv_nsec = durationNanos - (time.tv_sec * AAUDIO_NANOS_PER_SECOND);
 
+        // Sleep for durationNanos. If mState changes from the callback
+        // thread, this thread will wake up earlier.
+        syscall(SYS_futex, &mState, FUTEX_WAIT_PRIVATE, currentState, &time, NULL, 0);
+        timeoutNanoseconds -= durationNanos;
         aaudio_result_t result = updateStateMachine();
         if (result != AAUDIO_OK) {
             return result;
diff --git a/media/libaaudio/src/core/AudioStream.h b/media/libaaudio/src/core/AudioStream.h
index 5fb4528..8dd5538 100644
--- a/media/libaaudio/src/core/AudioStream.h
+++ b/media/libaaudio/src/core/AudioStream.h
@@ -100,10 +100,17 @@
                                        int64_t *timeNanoseconds) = 0;
 
     /**
-     * Update state machine.()
-     * @return
+     * Update state machine.
+     * @return result of the operation.
      */
-    virtual aaudio_result_t updateStateMachine() = 0;
+    aaudio_result_t updateStateMachine() {
+        if (isDataCallbackActive()) {
+            return AAUDIO_OK; // state is getting updated by the callback thread read/write call
+        }
+        return processCommands();
+    };
+
+    virtual aaudio_result_t processCommands() = 0;
 
     // =========== End ABSTRACT methods ===========================
 
@@ -184,7 +191,7 @@
     // ============== Queries ===========================
 
     aaudio_stream_state_t getState() const {
-        return mState;
+        return mState.load();
     }
 
     virtual int32_t getBufferSize() const {
@@ -674,6 +681,8 @@
 
     const android::sp<MyPlayerBase>   mPlayerBase;
 
+    std::atomic<aaudio_stream_state_t>          mState{AAUDIO_STREAM_STATE_UNINITIALIZED};
+
     // These do not change after open().
     int32_t                     mSamplesPerFrame = AAUDIO_UNSPECIFIED;
     aaudio_channel_mask_t       mChannelMask = AAUDIO_UNSPECIFIED;
@@ -682,7 +691,6 @@
     aaudio_sharing_mode_t       mSharingMode = AAUDIO_SHARING_MODE_SHARED;
     bool                        mSharingModeMatchRequired = false; // must match sharing mode requested
     audio_format_t              mFormat = AUDIO_FORMAT_DEFAULT;
-    aaudio_stream_state_t       mState = AAUDIO_STREAM_STATE_UNINITIALIZED;
     aaudio_performance_mode_t   mPerformanceMode = AAUDIO_PERFORMANCE_MODE_NONE;
     int32_t                     mFramesPerBurst = 0;
     int32_t                     mBufferCapacity = 0;
diff --git a/media/libaaudio/src/core/AudioStreamBuilder.cpp b/media/libaaudio/src/core/AudioStreamBuilder.cpp
index a100aa9..04b4325 100644
--- a/media/libaaudio/src/core/AudioStreamBuilder.cpp
+++ b/media/libaaudio/src/core/AudioStreamBuilder.cpp
@@ -192,6 +192,11 @@
         allowMMap = false;
     }
 
+    if (getFormat() == AUDIO_FORMAT_IEC61937) {
+        ALOGD("%s IEC61937 format is selected, do not allow MMAP in this case.", __func__);
+        allowMMap = false;
+    }
+
     if (!allowMMap && !allowLegacy) {
         ALOGE("%s() no backend available: neither MMAP nor legacy path are allowed", __func__);
         return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
diff --git a/media/libaaudio/src/legacy/AudioStreamLegacy.cpp b/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
index dd11169..f32ef65 100644
--- a/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
@@ -127,7 +127,7 @@
             mCallbackEnabled.store(false);
         }
 
-        if (updateStateMachine() != AAUDIO_OK) {
+        if (processCommands() != AAUDIO_OK) {
             forceDisconnect();
             mCallbackEnabled.store(false);
         }
@@ -192,7 +192,7 @@
             mCallbackEnabled.store(false);
         }
 
-        if (updateStateMachine() != AAUDIO_OK) {
+        if (processCommands() != AAUDIO_OK) {
             forceDisconnect();
             mCallbackEnabled.store(false);
         }
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.cpp b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
index 1e39e0f..9a136a7 100644
--- a/media/libaaudio/src/legacy/AudioStreamRecord.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
@@ -364,8 +364,7 @@
     return checkForDisconnectRequest(false);
 }
 
-aaudio_result_t AudioStreamRecord::updateStateMachine()
-{
+aaudio_result_t AudioStreamRecord::processCommands() {
     aaudio_result_t result = AAUDIO_OK;
     aaudio_wrapping_frames_t position;
     status_t err;
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.h b/media/libaaudio/src/legacy/AudioStreamRecord.h
index 5ce73f9..252ff3c 100644
--- a/media/libaaudio/src/legacy/AudioStreamRecord.h
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.h
@@ -58,7 +58,7 @@
 
     int64_t getFramesWritten() override;
 
-    aaudio_result_t updateStateMachine() override;
+    aaudio_result_t processCommands() override;
 
     aaudio_direction_t getDirection() const override {
         return AAUDIO_DIRECTION_INPUT;
diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.cpp b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
index 6f1dc92..09caa5c 100644
--- a/media/libaaudio/src/legacy/AudioStreamTrack.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
@@ -378,8 +378,7 @@
     return checkForDisconnectRequest(false);;
 }
 
-aaudio_result_t AudioStreamTrack::updateStateMachine()
-{
+aaudio_result_t AudioStreamTrack::processCommands() {
     status_t err;
     aaudio_wrapping_frames_t position;
     switch (getState()) {
diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.h b/media/libaaudio/src/legacy/AudioStreamTrack.h
index 0f4d72b..1f877b5 100644
--- a/media/libaaudio/src/legacy/AudioStreamTrack.h
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.h
@@ -79,7 +79,7 @@
         return AAUDIO_DIRECTION_OUTPUT;
     }
 
-    aaudio_result_t updateStateMachine() override;
+    aaudio_result_t processCommands() override;
 
     int64_t incrementClientFrameCounter(int32_t frames) override {
         return incrementFramesWritten(frames);
diff --git a/media/libaaudio/src/utility/AAudioUtilities.cpp b/media/libaaudio/src/utility/AAudioUtilities.cpp
index 872faca..a197ced 100644
--- a/media/libaaudio/src/utility/AAudioUtilities.cpp
+++ b/media/libaaudio/src/utility/AAudioUtilities.cpp
@@ -140,6 +140,9 @@
     case AAUDIO_FORMAT_PCM_I32:
         androidFormat = AUDIO_FORMAT_PCM_32_BIT;
         break;
+    case AAUDIO_FORMAT_IEC61937:
+        androidFormat = AUDIO_FORMAT_IEC61937;
+        break;
     default:
         androidFormat = AUDIO_FORMAT_INVALID;
         ALOGE("%s() 0x%08X unrecognized", __func__, aaudioFormat);
@@ -166,6 +169,9 @@
     case AUDIO_FORMAT_PCM_32_BIT:
         aaudioFormat = AAUDIO_FORMAT_PCM_I32;
         break;
+    case AUDIO_FORMAT_IEC61937:
+        aaudioFormat = AAUDIO_FORMAT_IEC61937;
+        break;
     default:
         aaudioFormat = AAUDIO_FORMAT_INVALID;
         ALOGE("%s() 0x%08X unrecognized", __func__, androidFormat);
diff --git a/media/libaudioclient/AidlConversion.cpp b/media/libaudioclient/AidlConversion.cpp
index 4133bd0..1521882 100644
--- a/media/libaudioclient/AidlConversion.cpp
+++ b/media/libaudioclient/AidlConversion.cpp
@@ -1932,7 +1932,7 @@
         case media::AudioPortType::SESSION:
             legacy.session = VALUE_OR_RETURN(
                     aidl2legacy_int32_t_audio_port_config_session_ext(
-                            VALUE_OR_RETURN(UNION_GET(aidl, session))));
+                            VALUE_OR_RETURN(UNION_GET(aidlSys, session))));
             return legacy;
 
     }
@@ -1966,9 +1966,9 @@
             return OK;
         }
         case AUDIO_PORT_TYPE_SESSION:
-            UNION_SET(*aidl, session, VALUE_OR_RETURN_STATUS(
+            UNION_SET(*aidl, unspecified, false);
+            UNION_SET(*aidlSys, session, VALUE_OR_RETURN_STATUS(
                             legacy2aidl_audio_port_config_session_ext_int32_t(legacy.session)));
-            UNION_SET(*aidlSys, unspecified, false);
             return OK;
     }
     LOG_ALWAYS_FATAL("Shouldn't get here"); // with -Werror,-Wswitch may compile-time fail
@@ -2816,7 +2816,7 @@
         case media::AudioPortType::SESSION:
             legacy.session = VALUE_OR_RETURN(
                     aidl2legacy_int32_t_audio_port_session_ext(
-                            VALUE_OR_RETURN(UNION_GET(aidl, session))));
+                            VALUE_OR_RETURN(UNION_GET(aidlSys, session))));
             return legacy;
 
     }
@@ -2852,9 +2852,9 @@
             return OK;
         }
         case AUDIO_PORT_TYPE_SESSION:
-            UNION_SET(*aidl, session, VALUE_OR_RETURN_STATUS(
+            UNION_SET(*aidl, unspecified, false);
+            UNION_SET(*aidlSys, session, VALUE_OR_RETURN_STATUS(
                             legacy2aidl_audio_port_session_ext_int32_t(legacy.session)));
-            UNION_SET(*aidlSys, unspecified, false);
             return OK;
     }
     LOG_ALWAYS_FATAL("Shouldn't get here"); // with -Werror,-Wswitch may compile-time fail
diff --git a/media/libaudioclient/Android.bp b/media/libaudioclient/Android.bp
index dccef0e..79dae27 100644
--- a/media/libaudioclient/Android.bp
+++ b/media/libaudioclient/Android.bp
@@ -302,12 +302,26 @@
     double_loadable: true,
     vendor_available: true,
     srcs: [
+        "aidl/android/media/EffectConfig.aidl",
         "aidl/android/media/IEffect.aidl",
         "aidl/android/media/IEffectClient.aidl",
     ],
     imports: [
+        "android.media.audio.common.types-V1",
         "shared-file-region-aidl",
     ],
+    backend: {
+        cpp: {
+            min_sdk_version: "29",
+            apex_available: [
+                "//apex_available:platform",
+                "com.android.media",
+            ],
+        },
+        java: {
+            sdk_version: "module_current",
+        },
+    },
 }
 
 aidl_interface {
diff --git a/media/libaudioclient/AudioEffect.cpp b/media/libaudioclient/AudioEffect.cpp
index d447f0c..2870c4c 100644
--- a/media/libaudioclient/AudioEffect.cpp
+++ b/media/libaudioclient/AudioEffect.cpp
@@ -527,6 +527,36 @@
     return status;
 }
 
+status_t AudioEffect::getConfigs(
+        audio_config_base_t *inputCfg, audio_config_base_t *outputCfg)
+{
+    if (mProbe) {
+        return INVALID_OPERATION;
+    }
+    if (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS) {
+        return mStatus;
+    }
+    if (inputCfg == NULL || outputCfg == NULL) {
+        return BAD_VALUE;
+    }
+    status_t status;
+    media::EffectConfig cfg;
+    Status bs = mIEffect->getConfig(&cfg, &status);
+    if (!bs.isOk()) {
+        status = statusTFromBinderStatus(bs);
+        ALOGW("%s received status %d from binder transaction", __func__, status);
+        return status;
+    }
+    if (status == NO_ERROR) {
+        *inputCfg = VALUE_OR_RETURN_STATUS(aidl2legacy_AudioConfigBase_audio_config_base_t(
+                        cfg.inputCfg, cfg.isOnInputStream));
+        *outputCfg = VALUE_OR_RETURN_STATUS(aidl2legacy_AudioConfigBase_audio_config_base_t(
+                        cfg.outputCfg, cfg.isOnInputStream));
+    } else {
+        ALOGW("%s received status %d from the effect", __func__, status);
+    }
+    return status;
+}
 
 // -------------------------------------------------------------------------
 
@@ -538,7 +568,6 @@
     if (cb != nullptr) {
         cb->onError(mStatus);
     }
-    mIEffect.clear();
 }
 
 // -------------------------------------------------------------------------
diff --git a/media/libaudioclient/AudioRecord.cpp b/media/libaudioclient/AudioRecord.cpp
index 15203d6..69d73ad 100644
--- a/media/libaudioclient/AudioRecord.cpp
+++ b/media/libaudioclient/AudioRecord.cpp
@@ -146,39 +146,6 @@
         audio_channel_mask_t channelMask,
         const AttributionSourceState& client,
         size_t frameCount,
-        legacy_callback_t callback,
-        void* user,
-        uint32_t notificationFrames,
-        audio_session_t sessionId,
-        transfer_type transferType,
-        audio_input_flags_t flags,
-        const audio_attributes_t* pAttributes,
-        audio_port_handle_t selectedDeviceId,
-        audio_microphone_direction_t selectedMicDirection,
-        float microphoneFieldDimension)
-    : mActive(false),
-      mStatus(NO_INIT),
-      mClientAttributionSource(client),
-      mSessionId(AUDIO_SESSION_ALLOCATE),
-      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
-      mPreviousSchedulingGroup(SP_DEFAULT),
-      mProxy(NULL)
-{
-    uid_t uid = VALUE_OR_FATAL(aidl2legacy_int32_t_uid_t(mClientAttributionSource.uid));
-    pid_t pid = VALUE_OR_FATAL(aidl2legacy_int32_t_pid_t(mClientAttributionSource.pid));
-    (void)set(inputSource, sampleRate, format, channelMask, frameCount, callback, user,
-            notificationFrames, false /*threadCanCallJava*/, sessionId, transferType, flags,
-            uid, pid, pAttributes, selectedDeviceId, selectedMicDirection,
-            microphoneFieldDimension);
-}
-
-AudioRecord::AudioRecord(
-        audio_source_t inputSource,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        const AttributionSourceState& client,
-        size_t frameCount,
         const wp<IAudioRecordCallback>& callback,
         uint32_t notificationFrames,
         audio_session_t sessionId,
@@ -255,37 +222,6 @@
         mDeviceCallback.clear();
     }
 }
-namespace {
-class LegacyCallbackWrapper : public AudioRecord::IAudioRecordCallback {
-    const AudioRecord::legacy_callback_t mCallback;
-    void* const mData;
-
-  public:
-    LegacyCallbackWrapper(AudioRecord::legacy_callback_t callback, void* user)
-        : mCallback(callback), mData(user) {}
-
-    size_t onMoreData(const AudioRecord::Buffer& buffer) override {
-        AudioRecord::Buffer copy = buffer;
-        mCallback(AudioRecord::EVENT_MORE_DATA, mData, &copy);
-        return copy.size();
-    }
-
-    void onOverrun() override { mCallback(AudioRecord::EVENT_OVERRUN, mData, nullptr); }
-
-    void onMarker(uint32_t markerPosition) override {
-        mCallback(AudioRecord::EVENT_MARKER, mData, &markerPosition);
-    }
-
-    void onNewPos(uint32_t newPos) override {
-        mCallback(AudioRecord::EVENT_NEW_POS, mData, &newPos);
-    }
-
-    void onNewIAudioRecord() override {
-        mCallback(AudioRecord::EVENT_NEW_IAUDIORECORD, mData, nullptr);
-    }
-};
-}  // namespace
-
 status_t AudioRecord::set(
         audio_source_t inputSource,
         uint32_t sampleRate,
@@ -479,37 +415,6 @@
     return status;
 }
 
-status_t AudioRecord::set(
-        audio_source_t inputSource,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        size_t frameCount,
-        legacy_callback_t callback,
-        void* user,
-        uint32_t notificationFrames,
-        bool threadCanCallJava,
-        audio_session_t sessionId,
-        transfer_type transferType,
-        audio_input_flags_t flags,
-        uid_t uid,
-        pid_t pid,
-        const audio_attributes_t* pAttributes,
-        audio_port_handle_t selectedDeviceId,
-        audio_microphone_direction_t selectedMicDirection,
-        float microphoneFieldDimension,
-        int32_t maxSharedAudioHistoryMs)
-{
-    if (callback != nullptr) {
-        mLegacyCallbackWrapper = sp<LegacyCallbackWrapper>::make(callback, user);
-    } else if (user) {
-        LOG_ALWAYS_FATAL("Callback data provided without callback pointer!");
-    }
-    return set(inputSource, sampleRate, format, channelMask, frameCount, mLegacyCallbackWrapper,
-        notificationFrames, threadCanCallJava, sessionId, transferType, flags, uid, pid,
-        pAttributes, selectedDeviceId, selectedMicDirection, microphoneFieldDimension,
-        maxSharedAudioHistoryMs);
-}
 // -------------------------------------------------------------------------
 
 status_t AudioRecord::start(AudioSystem::sync_event_t event, audio_session_t triggerSession)
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index bacca3a..965c40f 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -2384,7 +2384,7 @@
 
 status_t AudioSystem::getDirectProfilesForAttributes(const audio_attributes_t* attr,
                                                 std::vector<audio_profile>* audioProfiles) {
-    if (attr == nullptr) {
+    if (attr == nullptr || audioProfiles == nullptr) {
         return BAD_VALUE;
     }
 
diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index 6deef8f..b18a569 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -29,6 +29,7 @@
 #include <audio_utils/clock.h>
 #include <audio_utils/primitives.h>
 #include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
 #include <media/AudioTrack.h>
 #include <utils/Log.h>
 #include <private/media/AudioTrackShared.h>
@@ -42,7 +43,9 @@
 
 #define WAIT_PERIOD_MS                  10
 #define WAIT_STREAM_END_TIMEOUT_SEC     120
+
 static const int kMaxLoopCountNotifications = 32;
+static constexpr char kAudioServiceName[] = "audio";
 
 using ::android::aidl_utils::statusTFromBinderStatus;
 using ::android::base::StringPrintf;
@@ -325,45 +328,6 @@
         }
     };
 }
-
-AudioTrack::AudioTrack(
-        audio_stream_type_t streamType,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        size_t frameCount,
-        audio_output_flags_t flags,
-        legacy_callback_t callback,
-        void* user,
-        int32_t notificationFrames,
-        audio_session_t sessionId,
-        transfer_type transferType,
-        const audio_offload_info_t *offloadInfo,
-        const AttributionSourceState& attributionSource,
-        const audio_attributes_t* pAttributes,
-        bool doNotReconnect,
-        float maxRequiredSpeed,
-        audio_port_handle_t selectedDeviceId)
-    : mStatus(NO_INIT),
-      mState(STATE_STOPPED),
-      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
-      mPreviousSchedulingGroup(SP_DEFAULT),
-      mPausedPosition(0),
-      mAudioTrackCallback(new AudioTrackCallback())
-{
-    mAttributes = AUDIO_ATTRIBUTES_INITIALIZER;
-    if (callback != nullptr) {
-        mLegacyCallbackWrapper = sp<LegacyCallbackWrapper>::make(callback, user);
-    } else if (user) {
-        LOG_ALWAYS_FATAL("Callback data provided without callback pointer!");
-    }
-    mSetParams = std::unique_ptr<SetParams>{new SetParams{
-            streamType, sampleRate, format, channelMask, frameCount, flags, mLegacyCallbackWrapper,
-            notificationFrames, 0 /*sharedBuffer*/, false /*threadCanCallJava*/, sessionId,
-            transferType, offloadInfo, attributionSource, pAttributes, doNotReconnect,
-            maxRequiredSpeed, selectedDeviceId}};
-}
-
 AudioTrack::AudioTrack(
         audio_stream_type_t streamType,
         uint32_t sampleRate,
@@ -397,44 +361,6 @@
                           doNotReconnect, maxRequiredSpeed, AUDIO_PORT_HANDLE_NONE}};
 }
 
-AudioTrack::AudioTrack(
-        audio_stream_type_t streamType,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        const sp<IMemory>& sharedBuffer,
-        audio_output_flags_t flags,
-        legacy_callback_t callback,
-        void* user,
-        int32_t notificationFrames,
-        audio_session_t sessionId,
-        transfer_type transferType,
-        const audio_offload_info_t *offloadInfo,
-        const AttributionSourceState& attributionSource,
-        const audio_attributes_t* pAttributes,
-        bool doNotReconnect,
-        float maxRequiredSpeed)
-    : mStatus(NO_INIT),
-      mState(STATE_STOPPED),
-      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
-      mPreviousSchedulingGroup(SP_DEFAULT),
-      mPausedPosition(0),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
-      mAudioTrackCallback(new AudioTrackCallback())
-{
-    mAttributes = AUDIO_ATTRIBUTES_INITIALIZER;
-    if (callback) {
-        mLegacyCallbackWrapper = sp<LegacyCallbackWrapper>::make(callback, user);
-    } else if (user) {
-        LOG_ALWAYS_FATAL("Callback data provided without callback pointer!");
-    }
-    mSetParams = std::unique_ptr<SetParams>{new SetParams{
-            streamType, sampleRate, format, channelMask, 0 /*frameCount*/, flags,
-            mLegacyCallbackWrapper, notificationFrames, sharedBuffer, false /*threadCanCallJava*/,
-            sessionId, transferType, offloadInfo, attributionSource, pAttributes, doNotReconnect,
-            maxRequiredSpeed, AUDIO_PORT_HANDLE_NONE}};
-}
-
 void AudioTrack::onFirstRef() {
     if (mSetParams) {
         set(*mSetParams);
@@ -496,38 +422,6 @@
         mDeviceCallback.clear();
     }
 }
-
-status_t AudioTrack::set(
-        audio_stream_type_t streamType,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        size_t frameCount,
-        audio_output_flags_t flags,
-        legacy_callback_t callback,
-        void * user,
-        int32_t notificationFrames,
-        const sp<IMemory>& sharedBuffer,
-        bool threadCanCallJava,
-        audio_session_t sessionId,
-        transfer_type transferType,
-        const audio_offload_info_t *offloadInfo,
-        const AttributionSourceState& attributionSource,
-        const audio_attributes_t* pAttributes,
-        bool doNotReconnect,
-        float maxRequiredSpeed,
-        audio_port_handle_t selectedDeviceId)
-{
-    if (callback) {
-        mLegacyCallbackWrapper = sp<LegacyCallbackWrapper>::make(callback, user);
-    } else if (user) {
-        LOG_ALWAYS_FATAL("Callback data provided without callback pointer!");
-    }
-    return set(streamType, sampleRate,format, channelMask, frameCount, flags,
-               mLegacyCallbackWrapper, notificationFrames, sharedBuffer, threadCanCallJava,
-               sessionId, transferType, offloadInfo, attributionSource, pAttributes,
-               doNotReconnect, maxRequiredSpeed, selectedDeviceId);
-}
 status_t AudioTrack::set(
         audio_stream_type_t streamType,
         uint32_t sampleRate,
@@ -2058,6 +1952,9 @@
     }
 
     mPortId = output.portId;
+    // notify the upper layers about the new portId
+    triggerPortIdUpdate_l();
+
     // We retain a copy of the I/O handle, but don't own the reference
     mOutput = output.outputId;
     mRefreshRemaining = true;
@@ -3620,12 +3517,34 @@
     if (mPlayerIId == playerIId) return;
 
     mPlayerIId = playerIId;
+    triggerPortIdUpdate_l();
     mediametrics::LogItem(mMetricsId)
         .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_SETPLAYERIID)
         .set(AMEDIAMETRICS_PROP_PLAYERIID, playerIId)
         .record();
 }
 
+void AudioTrack::triggerPortIdUpdate_l() {
+    if (mAudioManager == nullptr) {
+        // use checkService() to avoid blocking if audio service is not up yet
+        sp<IBinder> binder =
+            defaultServiceManager()->checkService(String16(kAudioServiceName));
+        if (binder == nullptr) {
+            ALOGE("%s(%d): binding to audio service failed.",
+                  __func__,
+                  mPlayerIId);
+            return;
+        }
+
+        mAudioManager = interface_cast<IAudioManager>(binder);
+    }
+
+    // first time when the track is created we do not have a valid piid
+    if (mPlayerIId != PLAYER_PIID_INVALID) {
+        mAudioManager->playerEvent(mPlayerIId, PLAYER_UPDATE_PORT_ID, mPortId);
+    }
+}
+
 status_t AudioTrack::addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback)
 {
 
diff --git a/media/libaudioclient/TEST_MAPPING b/media/libaudioclient/TEST_MAPPING
index 3751f80..51080ef 100644
--- a/media/libaudioclient/TEST_MAPPING
+++ b/media/libaudioclient/TEST_MAPPING
@@ -4,12 +4,33 @@
       "name": "audio_aidl_conversion_tests"
     },
     {
+      "name": "audio_aidl_status_tests"
+    },
+    {
       "name": "CtsNativeMediaAAudioTestCases",
       "options" : [
         {
           "include-filter": "android.nativemedia.aaudio.AAudioTests#AAudioBasic.*"
         }
       ]
+    },
+    {
+      "name": "audiorecord_tests"
+    },
+    {
+      "name": "audioeffect_tests"
+    },
+    {
+      "name": "audiorouting_tests"
+    },
+    {
+      "name": "audioclient_serialization_tests"
+    },
+    {
+      "name": "trackplayerbase_tests"
+    },
+    {
+      "name": "audiosystem_tests"
     }
   ]
 }
diff --git a/media/libaudioclient/aidl/android/media/AudioPortExtSys.aidl b/media/libaudioclient/aidl/android/media/AudioPortExtSys.aidl
index 2cdf4f6..d9c6df4 100644
--- a/media/libaudioclient/aidl/android/media/AudioPortExtSys.aidl
+++ b/media/libaudioclient/aidl/android/media/AudioPortExtSys.aidl
@@ -31,4 +31,6 @@
     AudioPortDeviceExtSys device;
     /** System-only parameters when the port is an audio mix. */
     AudioPortMixExtSys mix;
+    /** Framework audio session identifier. */
+    int session;
 }
diff --git a/media/libaudioclient/aidl/android/media/EffectConfig.aidl b/media/libaudioclient/aidl/android/media/EffectConfig.aidl
new file mode 100644
index 0000000..5f62b73
--- /dev/null
+++ b/media/libaudioclient/aidl/android/media/EffectConfig.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.media;
+
+import android.media.audio.common.AudioConfigBase;
+
+/**
+ * Describes configuration of an audio effect. Input and output
+ * audio configurations are described separately because the effect
+ * can perform transformations on channel layouts, for example.
+ *
+ * {@hide}
+ */
+parcelable EffectConfig {
+    /** Configuration of the audio input of the effect. */
+    AudioConfigBase inputCfg;
+    /** Configuration of the audio output of the effect. */
+    AudioConfigBase outputCfg;
+    /**
+     * Specifies whether the effect is instantiated on an input stream,
+     * e.g. on the input from a microphone.
+     */
+    boolean isOnInputStream;
+}
diff --git a/media/libaudioclient/aidl/android/media/IEffect.aidl b/media/libaudioclient/aidl/android/media/IEffect.aidl
index 6ec0405..b7f70a6 100644
--- a/media/libaudioclient/aidl/android/media/IEffect.aidl
+++ b/media/libaudioclient/aidl/android/media/IEffect.aidl
@@ -16,6 +16,7 @@
 
 package android.media;
 
+import android.media.EffectConfig;
 import android.media.SharedFileRegion;
 
 /**
@@ -63,6 +64,14 @@
      */
     SharedFileRegion getCblk();
 
+    /**
+     * Provides audio configurations for effect's input and output,
+     * see EffectConfig parcelable for more details.
+     *
+     * @return a status_t code.
+     */
+    int getConfig(out EffectConfig config);
+
     // When adding a new method, please review and update
     // Effects.cpp AudioFlinger::EffectHandle::onTransact()
     // Effects.cpp IEFFECT_BINDER_METHOD_MACRO_LIST
diff --git a/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp b/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp
index 036e72e..5536bcb 100644
--- a/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp
+++ b/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp
@@ -84,13 +84,15 @@
 };
 
 template <typename T, typename X, typename FUNC>
-std::vector<T> getFlags(const xsdc_enum_range<X> &range, const FUNC &func,
-                        const std::string &findString = {}) {
+std::vector<T> getFlags(const xsdc_enum_range<X>& range, const FUNC& func,
+                        const std::string& findString = {},
+                        const std::set<X>& excludedValues = {}) {
     std::vector<T> vec;
     for (const auto &xsdEnumVal : range) {
         T enumVal;
         std::string enumString = toString(xsdEnumVal);
         if (enumString.find(findString) != std::string::npos &&
+            (excludedValues.find(xsdEnumVal) == excludedValues.end()) &&
             func(enumString.c_str(), &enumVal)) {
             vec.push_back(enumVal);
         }
@@ -102,13 +104,29 @@
     getFlags<audio_stream_type_t, xsd::AudioStreamType, decltype(audio_stream_type_from_string)>(
         xsdc_enum_range<xsd::AudioStreamType>{}, audio_stream_type_from_string);
 
+/**
+ * AudioFormat - AUDIO_FORMAT_HE_AAC_V1 and AUDIO_FORMAT_HE_AAC_V2
+ * are excluded from kFormats[] in order to avoid the abort triggered
+ * for these two types of AudioFormat in
+ * AidlConversion::legacy2aidl_audio_format_t_AudioFormatDescription()
+ */
 static const std::vector<audio_format_t> kFormats =
-    getFlags<audio_format_t, xsd::AudioFormat, decltype(audio_format_from_string)>(
-        xsdc_enum_range<xsd::AudioFormat>{}, audio_format_from_string);
+        getFlags<audio_format_t, xsd::AudioFormat, decltype(audio_format_from_string)>(
+                xsdc_enum_range<xsd::AudioFormat>{}, audio_format_from_string, {},
+                {xsd::AudioFormat::AUDIO_FORMAT_HE_AAC_V1,
+                 xsd::AudioFormat::AUDIO_FORMAT_HE_AAC_V2});
 
+/**
+ * AudioChannelMask - AUDIO_CHANNEL_IN_6
+ * is excluded from kChannelMasks[] in order to avoid the abort triggered
+ * for this type of AudioChannelMask in
+ * AidlConversion::legacy2aidl_audio_channel_mask_t_AudioChannelLayout()
+ */
 static const std::vector<audio_channel_mask_t> kChannelMasks =
-    getFlags<audio_channel_mask_t, xsd::AudioChannelMask, decltype(audio_channel_mask_from_string)>(
-        xsdc_enum_range<xsd::AudioChannelMask>{}, audio_channel_mask_from_string);
+        getFlags<audio_channel_mask_t, xsd::AudioChannelMask,
+                 decltype(audio_channel_mask_from_string)>(
+                xsdc_enum_range<xsd::AudioChannelMask>{}, audio_channel_mask_from_string, {},
+                {xsd::AudioChannelMask::AUDIO_CHANNEL_IN_6});
 
 static const std::vector<audio_usage_t> kUsages =
     getFlags<audio_usage_t, xsd::AudioUsage, decltype(audio_usage_from_string)>(
@@ -126,9 +144,17 @@
     getFlags<audio_gain_mode_t, xsd::AudioGainMode, decltype(audio_gain_mode_from_string)>(
         xsdc_enum_range<xsd::AudioGainMode>{}, audio_gain_mode_from_string);
 
+/**
+ * AudioDevice - AUDIO_DEVICE_IN_AMBIENT and AUDIO_DEVICE_IN_COMMUNICATION
+ * are excluded from kDevices[] in order to avoid the abort triggered
+ * for these two types of AudioDevice in
+ * AidlConversion::aidl2legacy_AudioDeviceDescription_audio_devices_t()
+ */
 static const std::vector<audio_devices_t> kDevices =
-    getFlags<audio_devices_t, xsd::AudioDevice, decltype(audio_device_from_string)>(
-        xsdc_enum_range<xsd::AudioDevice>{}, audio_device_from_string);
+        getFlags<audio_devices_t, xsd::AudioDevice, decltype(audio_device_from_string)>(
+                xsdc_enum_range<xsd::AudioDevice>{}, audio_device_from_string, {},
+                {xsd::AudioDevice::AUDIO_DEVICE_IN_AMBIENT,
+                 xsd::AudioDevice::AUDIO_DEVICE_IN_COMMUNICATION});
 
 static const std::vector<audio_input_flags_t> kInputFlags =
     getFlags<audio_input_flags_t, xsd::AudioInOutFlag, decltype(audio_input_flag_from_string)>(
diff --git a/media/libaudioclient/include/media/AudioEffect.h b/media/libaudioclient/include/media/AudioEffect.h
index ca35543..72c050b 100644
--- a/media/libaudioclient/include/media/AudioEffect.h
+++ b/media/libaudioclient/include/media/AudioEffect.h
@@ -578,6 +578,25 @@
                               uint32_t *replySize,
                               void *replyData);
 
+    /* Retrieves the configuration of the effect.
+     *
+     * Parameters:
+     *      inputCfg:  pointer to audio_config_base_t structure receiving input
+     *          configuration of the effect
+     *      outputCfg: pointer to audio_config_base_t structure receiving output
+     *          configuration of the effect
+     *
+     * Channel masks of the returned configs are "input" or "output" depending
+     * on the direction of the stream that the effect is attached to.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation.
+     *  - INVALID_OPERATION: the AudioEffect was not successfully initialized.
+     *  - BAD_VALUE: null config pointers
+     *  - DEAD_OBJECT: the effect engine has been deleted.
+     */
+     virtual status_t   getConfigs(audio_config_base_t *inputCfg,
+                                   audio_config_base_t *outputCfg);
 
      /*
       * Utility functions.
diff --git a/media/libaudioclient/include/media/AudioRecord.h b/media/libaudioclient/include/media/AudioRecord.h
index cb05dd9..5a1ff65 100644
--- a/media/libaudioclient/include/media/AudioRecord.h
+++ b/media/libaudioclient/include/media/AudioRecord.h
@@ -46,27 +46,6 @@
 {
 public:
 
-    /* Events used by AudioRecord callback function (legacy_callback_t).
-     * Keep in sync with frameworks/base/media/java/android/media/AudioRecord.java NATIVE_EVENT_*.
-     */
-    enum event_type {
-        EVENT_MORE_DATA = 0,        // Request to read available data from buffer.
-                                    // If this event is delivered but the callback handler
-                                    // does not want to read the available data, the handler must
-                                    // explicitly ignore the event by setting frameCount to zero.
-        EVENT_OVERRUN = 1,          // Buffer overrun occurred.
-        EVENT_MARKER = 2,           // Record head is at the specified marker position
-                                    // (See setMarkerPosition()).
-        EVENT_NEW_POS = 3,          // Record head is at a new position
-                                    // (See setPositionUpdatePeriod()).
-        EVENT_NEW_IAUDIORECORD = 4, // IAudioRecord was re-created, either due to re-routing and
-                                    // voluntary invalidation by mediaserver, or mediaserver crash.
-    };
-
-    /* Client should declare a Buffer and pass address to obtainBuffer()
-     * and releaseBuffer().  See also legacy_callback_t for EVENT_MORE_DATA.
-     */
-
     class Buffer
     {
       friend AudioRecord;
@@ -122,7 +101,6 @@
      *          - EVENT_NEW_IAUDIORECORD: unused.
      */
 
-    typedef void (*legacy_callback_t)(int event, void* user, void *info);
 
     class IAudioRecordCallback : public virtual RefBase {
         friend AudioRecord;
@@ -226,24 +204,6 @@
                                     float selectedMicFieldDimension = MIC_FIELD_DIMENSION_DEFAULT);
 
 
-                        AudioRecord(audio_source_t inputSource,
-                                    uint32_t sampleRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    const android::content::AttributionSourceState& client,
-                                    size_t frameCount,
-                                    legacy_callback_t callback,
-                                    void* user,
-                                    uint32_t notificationFrames = 0,
-                                    audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
-                                    transfer_type transferType = TRANSFER_DEFAULT,
-                                    audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
-                                    const audio_attributes_t* pAttributes = nullptr,
-                                    audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
-                                    audio_microphone_direction_t
-                                        selectedMicDirection = MIC_DIRECTION_UNSPECIFIED,
-                                    float selectedMicFieldDimension = MIC_FIELD_DIMENSION_DEFAULT);
-
     /* Terminates the AudioRecord and unregisters it from AudioFlinger.
      * Also destroys all resources associated with the AudioRecord.
      */
@@ -286,27 +246,6 @@
                             float selectedMicFieldDimension = MIC_FIELD_DIMENSION_DEFAULT,
                             int32_t maxSharedAudioHistoryMs = 0);
 
-           status_t    set(audio_source_t inputSource,
-                            uint32_t sampleRate,
-                            audio_format_t format,
-                            audio_channel_mask_t channelMask,
-                            size_t frameCount,
-                            legacy_callback_t callback,
-                            void* user,
-                            uint32_t notificationFrames = 0,
-                            bool threadCanCallJava = false,
-                            audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
-                            transfer_type transferType = TRANSFER_DEFAULT,
-                            audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
-                            uid_t uid = AUDIO_UID_INVALID,
-                            pid_t pid = -1,
-                            const audio_attributes_t* pAttributes = nullptr,
-                            audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
-                            audio_microphone_direction_t
-                                selectedMicDirection = MIC_DIRECTION_UNSPECIFIED,
-                            float selectedMicFieldDimension = MIC_FIELD_DIMENSION_DEFAULT,
-                            int32_t maxSharedAudioHistoryMs = 0);
-
     /* Result of constructing the AudioRecord. This must be checked for successful initialization
      * before using any AudioRecord API (except for set()), because using
      * an uninitialized AudioRecord produces undefined results.
diff --git a/media/libaudioclient/include/media/AudioTrack.h b/media/libaudioclient/include/media/AudioTrack.h
index 9f540e6..e873607 100644
--- a/media/libaudioclient/include/media/AudioTrack.h
+++ b/media/libaudioclient/include/media/AudioTrack.h
@@ -17,6 +17,7 @@
 #ifndef ANDROID_AUDIOTRACK_H
 #define ANDROID_AUDIOTRACK_H
 
+#include <audiomanager/IAudioManager.h>
 #include <binder/IMemory.h>
 #include <cutils/sched_policy.h>
 #include <media/AudioSystem.h>
@@ -148,7 +149,6 @@
      *          - EVENT_NEW_TIMESTAMP: pointer to const AudioTimestamp.
      */
 
-    typedef void (*legacy_callback_t)(int event, void* user, void* info);
     class IAudioTrackCallback : public virtual RefBase {
       friend AudioTrack;
       protected:
@@ -343,26 +343,6 @@
                                     float maxRequiredSpeed = 1.0f,
                                     audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE);
 
-
-                        AudioTrack( audio_stream_type_t streamType,
-                                    uint32_t sampleRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    size_t frameCount,
-                                    audio_output_flags_t flags,
-                                    legacy_callback_t cbf,
-                                    void* user = nullptr,
-                                    int32_t notificationFrames = 0,
-                                    audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
-                                    transfer_type transferType = TRANSFER_DEFAULT,
-                                    const audio_offload_info_t *offloadInfo = nullptr,
-                                    const AttributionSourceState& attributionSource =
-                                        AttributionSourceState(),
-                                    const audio_attributes_t* pAttributes = nullptr,
-                                    bool doNotReconnect = false,
-                                    float maxRequiredSpeed = 1.0f,
-                                    audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE);
-
     /* Creates an audio track and registers it with AudioFlinger.
      * With this constructor, the track is configured for static buffer mode.
      * Data to be rendered is passed in a shared memory buffer
@@ -391,25 +371,6 @@
                                     bool doNotReconnect = false,
                                     float maxRequiredSpeed = 1.0f);
 
-
-                        AudioTrack( audio_stream_type_t streamType,
-                                    uint32_t sampleRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    const sp<IMemory>& sharedBuffer,
-                                    audio_output_flags_t flags,
-                                    legacy_callback_t cbf,
-                                    void* user          = nullptr,
-                                    int32_t notificationFrames = 0,
-                                    audio_session_t sessionId   = AUDIO_SESSION_ALLOCATE,
-                                    transfer_type transferType = TRANSFER_DEFAULT,
-                                    const audio_offload_info_t *offloadInfo = nullptr,
-                                    const AttributionSourceState& attributionSource =
-                                        AttributionSourceState(),
-                                    const audio_attributes_t* pAttributes = nullptr,
-                                    bool doNotReconnect = false,
-                                    float maxRequiredSpeed = 1.0f);
-
     /* Terminates the AudioTrack and unregisters it from AudioFlinger.
      * Also destroys all resources associated with the AudioTrack.
      */
@@ -490,28 +451,8 @@
                         }
             void       onFirstRef() override;
         public:
-            status_t    set(audio_stream_type_t streamType,
-                            uint32_t sampleRate,
-                            audio_format_t format,
-                            audio_channel_mask_t channelMask,
-                            size_t frameCount,
-                            audio_output_flags_t flags,
-                            legacy_callback_t callback,
-                            void * user = nullptr,
-                            int32_t notificationFrames = 0,
-                            const sp<IMemory>& sharedBuffer = 0,
-                            bool threadCanCallJava = false,
-                            audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
-                            transfer_type transferType = TRANSFER_DEFAULT,
-                            const audio_offload_info_t *offloadInfo = nullptr,
-                            const AttributionSourceState& attributionSource =
-                                AttributionSourceState(),
-                            const audio_attributes_t* pAttributes = nullptr,
-                            bool doNotReconnect = false,
-                            float maxRequiredSpeed = 1.0f,
-                            audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE);
-
-    // FIXME(b/169889714): Vendor code depends on the old method signature at link time
+            typedef void (*legacy_callback_t)(int event, void* user, void* info);
+            // FIXME(b/169889714): Vendor code depends on the old method signature at link time
             status_t    set(audio_stream_type_t streamType,
                             uint32_t sampleRate,
                             audio_format_t format,
@@ -1205,6 +1146,8 @@
             void setAudioTrackCallback(const sp<media::IAudioTrackCallback>& callback) {
                 mAudioTrackCallback->setAudioTrackCallback(callback);
             }
+ private:
+            void triggerPortIdUpdate_l();
 
  protected:
     /* copying audio tracks is not allowed */
@@ -1471,7 +1414,7 @@
 
     audio_session_t         mSessionId;
     int                     mAuxEffectId;
-    audio_port_handle_t     mPortId;                    // Id from Audio Policy Manager
+    audio_port_handle_t     mPortId = AUDIO_PORT_HANDLE_NONE; // Id from Audio Policy Manager
 
     /**
      * mPlayerIId is the player id of the AudioTrack used by AudioManager.
@@ -1479,6 +1422,9 @@
      */
     int                     mPlayerIId = -1;  // AudioManager.h PLAYER_PIID_INVALID
 
+    /** Interface for interacting with the AudioService. */
+    sp<IAudioManager>       mAudioManager;
+
     /**
      * mLogSessionId is a string identifying this AudioTrack for the metrics service.
      * It may be unique or shared with other objects.  An empty string means the
diff --git a/media/libaudioclient/tests/Android.bp b/media/libaudioclient/tests/Android.bp
index 891293e..e861932 100644
--- a/media/libaudioclient/tests/Android.bp
+++ b/media/libaudioclient/tests/Android.bp
@@ -93,3 +93,113 @@
     ],
     data: ["record_test_input_*.txt"],
 }
+
+cc_defaults {
+    name: "libaudioclient_gtests_defaults",
+    cflags: [
+        "-Wall",
+        "-Werror",
+    ],
+    shared_libs: [
+        "capture_state_listener-aidl-cpp",
+        "framework-permission-aidl-cpp",
+        "libbase",
+        "libbinder",
+        "libcgrouprc",
+        "libcutils",
+        "libdl",
+        "liblog",
+        "libmedia",
+        "libmediametrics",
+        "libmediautils",
+        "libmedia_helper",
+        "libnblog",
+        "libprocessgroup",
+        "libshmemcompat",
+        "libstagefright_foundation",
+        "libutils",
+        "libxml2",
+        "mediametricsservice-aidl-cpp",
+        "packagemanager_aidl-cpp",
+        "shared-file-region-aidl-cpp",
+    ],
+    static_libs: [
+        "android.hardware.audio.common@7.0-enums",
+        "android.media.audio.common.types-V1-cpp",
+        "audioclient-types-aidl-cpp",
+        "audioflinger-aidl-cpp",
+        "audiopolicy-aidl-cpp",
+        "audiopolicy-types-aidl-cpp",
+        "av-types-aidl-cpp",
+        "effect-aidl-cpp",
+        "libaudioclient",
+        "libaudioclient_aidl_conversion",
+        "libaudiofoundation",
+        "libaudiomanager",
+        "libaudiopolicy",
+        "libaudioutils",
+    ],
+    data: ["bbb*.raw"],
+    test_config_template: "audio_test_template.xml",
+    test_suites: ["device-tests"],
+}
+
+cc_test {
+    name: "audiorecord_tests",
+    defaults: ["libaudioclient_gtests_defaults"],
+    srcs: [
+        "audiorecord_tests.cpp",
+        "audio_test_utils.cpp",
+    ],
+}
+
+cc_test {
+    name: "audiotrack_tests",
+    defaults: ["libaudioclient_gtests_defaults"],
+    srcs: [
+        "audiotrack_tests.cpp",
+        "audio_test_utils.cpp",
+    ],
+}
+
+cc_test {
+    name: "audioeffect_tests",
+    defaults: ["libaudioclient_gtests_defaults"],
+    srcs: [
+        "audioeffect_tests.cpp",
+        "audio_test_utils.cpp",
+    ],
+}
+
+cc_test {
+    name: "audiorouting_tests",
+    defaults: ["libaudioclient_gtests_defaults"],
+    srcs: [
+        "audiorouting_tests.cpp",
+        "audio_test_utils.cpp",
+    ],
+}
+
+cc_test {
+    name: "audioclient_serialization_tests",
+    defaults: ["libaudioclient_gtests_defaults"],
+    srcs: [
+        "audioclient_serialization_tests.cpp",
+        "audio_test_utils.cpp",
+    ],
+}
+
+cc_test {
+    name: "trackplayerbase_tests",
+    defaults: ["libaudioclient_gtests_defaults"],
+    srcs: ["trackplayerbase_tests.cpp"],
+}
+
+cc_test {
+    name: "audiosystem_tests",
+    defaults: ["libaudioclient_gtests_defaults"],
+    srcs: [
+        "audiosystem_tests.cpp",
+        "audio_test_utils.cpp",
+    ],
+}
diff --git a/media/libaudioclient/tests/audio_aidl_legacy_conversion_tests.cpp b/media/libaudioclient/tests/audio_aidl_legacy_conversion_tests.cpp
index 997f62a..9e663bc 100644
--- a/media/libaudioclient/tests/audio_aidl_legacy_conversion_tests.cpp
+++ b/media/libaudioclient/tests/audio_aidl_legacy_conversion_tests.cpp
@@ -16,22 +16,29 @@
 
 #include <gtest/gtest.h>
 
-#include <media/AudioCommonTypes.h>
 #include <media/AidlConversion.h>
+#include <media/AudioCommonTypes.h>
 
 using namespace android;
 using namespace android::aidl_utils;
 
+using android::media::AudioDirectMode;
 using media::audio::common::AudioChannelLayout;
 using media::audio::common::AudioDeviceDescription;
 using media::audio::common::AudioDeviceType;
+using media::audio::common::AudioEncapsulationMetadataType;
+using media::audio::common::AudioEncapsulationType;
 using media::audio::common::AudioFormatDescription;
 using media::audio::common::AudioFormatType;
+using media::audio::common::AudioGainMode;
+using media::audio::common::AudioStandard;
+using media::audio::common::ExtraAudioDescriptor;
 using media::audio::common::PcmType;
 
 namespace {
 
-template<typename T> size_t hash(const T& t) {
+template <typename T>
+size_t hash(const T& t) {
     return std::hash<T>{}(t);
 }
 
@@ -52,10 +59,8 @@
     return AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
             // Use channels that exist both for input and output,
             // but doesn't form a known layout mask.
-            AudioChannelLayout::CHANNEL_FRONT_LEFT |
-            AudioChannelLayout::CHANNEL_FRONT_RIGHT |
-            AudioChannelLayout::CHANNEL_TOP_SIDE_LEFT |
-            AudioChannelLayout::CHANNEL_TOP_SIDE_RIGHT);
+            AudioChannelLayout::CHANNEL_FRONT_LEFT | AudioChannelLayout::CHANNEL_FRONT_RIGHT |
+            AudioChannelLayout::CHANNEL_TOP_SIDE_LEFT | AudioChannelLayout::CHANNEL_TOP_SIDE_RIGHT);
 }
 
 AudioChannelLayout make_ACL_ChannelIndex2() {
@@ -74,7 +79,7 @@
 }
 
 AudioDeviceDescription make_AudioDeviceDescription(AudioDeviceType type,
-        const std::string& connection = "") {
+                                                   const std::string& connection = "") {
     AudioDeviceDescription result;
     result.type = type;
     result.connection = connection;
@@ -95,12 +100,12 @@
 
 AudioDeviceDescription make_ADD_WiredHeadset() {
     return make_AudioDeviceDescription(AudioDeviceType::OUT_HEADSET,
-            AudioDeviceDescription::CONNECTION_ANALOG());
+                                       AudioDeviceDescription::CONNECTION_ANALOG());
 }
 
 AudioDeviceDescription make_ADD_BtScoHeadset() {
     return make_AudioDeviceDescription(AudioDeviceType::OUT_HEADSET,
-            AudioDeviceDescription::CONNECTION_BT_SCO());
+                                       AudioDeviceDescription::CONNECTION_BT_SCO());
 }
 
 AudioFormatDescription make_AudioFormatDescription(AudioFormatType type) {
@@ -121,8 +126,7 @@
     return result;
 }
 
-AudioFormatDescription make_AudioFormatDescription(PcmType transport,
-        const std::string& encoding) {
+AudioFormatDescription make_AudioFormatDescription(PcmType transport, const std::string& encoding) {
     auto result = make_AudioFormatDescription(encoding);
     result.pcm = transport;
     return result;
@@ -154,6 +158,22 @@
     return afd;
 }
 
+android::media::TrackSecondaryOutputInfo make_TrackSecondaryOutputInfo() {
+    android::media::TrackSecondaryOutputInfo result;
+    result.portId = 1;
+    result.secondaryOutputIds = {0, 5, 7};
+    return result;
+}
+
+ExtraAudioDescriptor make_ExtraAudioDescriptor(AudioStandard audioStandard,
+                                               AudioEncapsulationType audioEncapsulationType) {
+    ExtraAudioDescriptor result;
+    result.standard = audioStandard;
+    result.audioDescriptor = {0xb4, 0xaf, 0x98, 0x1a};
+    result.encapsulationType = audioEncapsulationType;
+    return result;
+}
+
 }  // namespace
 
 // Verify that two independently constructed ADDs/AFDs have the same hash.
@@ -163,7 +183,8 @@
 // is identical to the same format description constructed by the framework.
 class HashIdentityTest : public ::testing::Test {
   public:
-    template<typename T> void verifyHashIdentity(const std::vector<std::function<T()>>& valueGens) {
+    template <typename T>
+    void verifyHashIdentity(const std::vector<std::function<T()>>& valueGens) {
         for (size_t i = 0; i < valueGens.size(); ++i) {
             for (size_t j = 0; j < valueGens.size(); ++j) {
                 if (i == j) {
@@ -177,27 +198,25 @@
 };
 
 TEST_F(HashIdentityTest, AudioChannelLayoutHashIdentity) {
-    verifyHashIdentity<AudioChannelLayout>({
-            make_ACL_None, make_ACL_Invalid, make_ACL_Stereo,
-            make_ACL_LayoutArbitrary, make_ACL_ChannelIndex2,
-            make_ACL_ChannelIndexArbitrary, make_ACL_VoiceCall});
+    verifyHashIdentity<AudioChannelLayout>({make_ACL_None, make_ACL_Invalid, make_ACL_Stereo,
+                                            make_ACL_LayoutArbitrary, make_ACL_ChannelIndex2,
+                                            make_ACL_ChannelIndexArbitrary, make_ACL_VoiceCall});
 }
 
 TEST_F(HashIdentityTest, AudioDeviceDescriptionHashIdentity) {
-    verifyHashIdentity<AudioDeviceDescription>({
-            make_ADD_None, make_ADD_DefaultIn, make_ADD_DefaultOut, make_ADD_WiredHeadset,
-            make_ADD_BtScoHeadset});
+    verifyHashIdentity<AudioDeviceDescription>({make_ADD_None, make_ADD_DefaultIn,
+                                                make_ADD_DefaultOut, make_ADD_WiredHeadset,
+                                                make_ADD_BtScoHeadset});
 }
 
 TEST_F(HashIdentityTest, AudioFormatDescriptionHashIdentity) {
-    verifyHashIdentity<AudioFormatDescription>({
-            make_AFD_Default, make_AFD_Invalid, make_AFD_Pcm16Bit, make_AFD_Bitstream,
-            make_AFD_Encap, make_AFD_Encap_with_Enc});
+    verifyHashIdentity<AudioFormatDescription>({make_AFD_Default, make_AFD_Invalid,
+                                                make_AFD_Pcm16Bit, make_AFD_Bitstream,
+                                                make_AFD_Encap, make_AFD_Encap_with_Enc});
 }
 
 using ChannelLayoutParam = std::tuple<AudioChannelLayout, bool /*isInput*/>;
-class AudioChannelLayoutRoundTripTest :
-        public testing::TestWithParam<ChannelLayoutParam> {};
+class AudioChannelLayoutRoundTripTest : public testing::TestWithParam<ChannelLayoutParam> {};
 TEST_P(AudioChannelLayoutRoundTripTest, Aidl2Legacy2Aidl) {
     const auto initial = std::get<0>(GetParam());
     const bool isInput = std::get<1>(GetParam());
@@ -207,21 +226,82 @@
     ASSERT_TRUE(convBack.ok());
     EXPECT_EQ(initial, convBack.value());
 }
-INSTANTIATE_TEST_SUITE_P(AudioChannelLayoutRoundTrip,
-        AudioChannelLayoutRoundTripTest,
+
+INSTANTIATE_TEST_SUITE_P(
+        AudioChannelLayoutRoundTrip, AudioChannelLayoutRoundTripTest,
         testing::Combine(
                 testing::Values(AudioChannelLayout{}, make_ACL_Invalid(), make_ACL_Stereo(),
-                        make_ACL_LayoutArbitrary(), make_ACL_ChannelIndex2(),
-                        make_ACL_ChannelIndexArbitrary()),
+                                make_ACL_LayoutArbitrary(), make_ACL_ChannelIndex2(),
+                                make_ACL_ChannelIndexArbitrary(),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_FRONT_LEFT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_FRONT_RIGHT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_BACK_CENTER),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_BACK_LEFT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_BACK_RIGHT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_FRONT_CENTER),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_LOW_FREQUENCY),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_TOP_SIDE_LEFT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_TOP_SIDE_RIGHT)),
                 testing::Values(false, true)));
-INSTANTIATE_TEST_SUITE_P(AudioChannelVoiceRoundTrip,
-        AudioChannelLayoutRoundTripTest,
-        // In legacy constants the voice call is only defined for input.
-        testing::Combine(testing::Values(make_ACL_VoiceCall()), testing::Values(true)));
+INSTANTIATE_TEST_SUITE_P(AudioChannelVoiceRoundTrip, AudioChannelLayoutRoundTripTest,
+                         // In legacy constants the voice call is only defined for input.
+                         testing::Combine(testing::Values(make_ACL_VoiceCall()),
+                                          testing::Values(true)));
+
+INSTANTIATE_TEST_SUITE_P(
+        OutAudioChannelLayoutLayoutRoundTrip, AudioChannelLayoutRoundTripTest,
+        testing::Combine(
+                testing::Values(AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_FRONT_LEFT_OF_CENTER),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_FRONT_RIGHT_OF_CENTER),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_SIDE_LEFT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_SIDE_RIGHT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_TOP_CENTER),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_TOP_FRONT_LEFT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_TOP_FRONT_CENTER),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_TOP_FRONT_RIGHT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_TOP_BACK_LEFT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_TOP_BACK_CENTER),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_TOP_BACK_RIGHT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_BOTTOM_FRONT_LEFT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_BOTTOM_FRONT_CENTER),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_BOTTOM_FRONT_RIGHT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_LOW_FREQUENCY_2),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_FRONT_WIDE_LEFT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_FRONT_WIDE_RIGHT),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_HAPTIC_A),
+                                AudioChannelLayout::make<AudioChannelLayout::Tag::layoutMask>(
+                                        AudioChannelLayout::CHANNEL_HAPTIC_B)),
+                testing::Values(false)));
 
 using ChannelLayoutEdgeCaseParam = std::tuple<int /*legacy*/, bool /*isInput*/, bool /*isValid*/>;
-class AudioChannelLayoutEdgeCaseTest :
-        public testing::TestWithParam<ChannelLayoutEdgeCaseParam> {};
+class AudioChannelLayoutEdgeCaseTest : public testing::TestWithParam<ChannelLayoutEdgeCaseParam> {};
 TEST_P(AudioChannelLayoutEdgeCaseTest, Legacy2Aidl) {
     const audio_channel_mask_t legacy = static_cast<audio_channel_mask_t>(std::get<0>(GetParam()));
     const bool isInput = std::get<1>(GetParam());
@@ -229,8 +309,8 @@
     auto conv = legacy2aidl_audio_channel_mask_t_AudioChannelLayout(legacy, isInput);
     EXPECT_EQ(isValid, conv.ok());
 }
-INSTANTIATE_TEST_SUITE_P(AudioChannelLayoutEdgeCase,
-        AudioChannelLayoutEdgeCaseTest,
+INSTANTIATE_TEST_SUITE_P(
+        AudioChannelLayoutEdgeCase, AudioChannelLayoutEdgeCaseTest,
         testing::Values(
                 // Valid legacy input masks.
                 std::make_tuple(AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO, true, true),
@@ -240,25 +320,26 @@
                 std::make_tuple(
                         // This has the same numerical representation as Mask 'A' below
                         AUDIO_CHANNEL_OUT_FRONT_CENTER | AUDIO_CHANNEL_OUT_LOW_FREQUENCY |
-                        AUDIO_CHANNEL_OUT_TOP_FRONT_RIGHT, false, true),
+                                AUDIO_CHANNEL_OUT_TOP_FRONT_RIGHT,
+                        false, true),
                 std::make_tuple(
                         // This has the same numerical representation as Mask 'B' below
                         AUDIO_CHANNEL_OUT_FRONT_CENTER | AUDIO_CHANNEL_OUT_LOW_FREQUENCY |
-                        AUDIO_CHANNEL_OUT_TOP_BACK_LEFT, false, true),
+                                AUDIO_CHANNEL_OUT_TOP_BACK_LEFT,
+                        false, true),
                 // Invalid legacy input masks.
                 std::make_tuple(AUDIO_CHANNEL_IN_6, true, false),
-                std::make_tuple(
-                        AUDIO_CHANNEL_IN_6 | AUDIO_CHANNEL_IN_FRONT_PROCESSED, true, false),
-                std::make_tuple(
-                        AUDIO_CHANNEL_IN_PRESSURE | AUDIO_CHANNEL_IN_X_AXIS |
-                        AUDIO_CHANNEL_IN_Y_AXIS | AUDIO_CHANNEL_IN_Z_AXIS, true, false),
+                std::make_tuple(AUDIO_CHANNEL_IN_6 | AUDIO_CHANNEL_IN_FRONT_PROCESSED, true, false),
+                std::make_tuple(AUDIO_CHANNEL_IN_PRESSURE | AUDIO_CHANNEL_IN_X_AXIS |
+                                        AUDIO_CHANNEL_IN_Y_AXIS | AUDIO_CHANNEL_IN_Z_AXIS,
+                                true, false),
                 std::make_tuple(  // Mask 'A'
                         AUDIO_CHANNEL_IN_STEREO | AUDIO_CHANNEL_IN_VOICE_UPLINK, true, false),
                 std::make_tuple(  // Mask 'B'
                         AUDIO_CHANNEL_IN_STEREO | AUDIO_CHANNEL_IN_VOICE_DNLINK, true, false)));
 
-class AudioDeviceDescriptionRoundTripTest :
-        public testing::TestWithParam<AudioDeviceDescription> {};
+class AudioDeviceDescriptionRoundTripTest : public testing::TestWithParam<AudioDeviceDescription> {
+};
 TEST_P(AudioDeviceDescriptionRoundTripTest, Aidl2Legacy2Aidl) {
     const auto initial = GetParam();
     auto conv = aidl2legacy_AudioDeviceDescription_audio_devices_t(initial);
@@ -267,13 +348,13 @@
     ASSERT_TRUE(convBack.ok());
     EXPECT_EQ(initial, convBack.value());
 }
-INSTANTIATE_TEST_SUITE_P(AudioDeviceDescriptionRoundTrip,
-        AudioDeviceDescriptionRoundTripTest,
-        testing::Values(AudioDeviceDescription{}, make_ADD_DefaultIn(),
-                make_ADD_DefaultOut(), make_ADD_WiredHeadset(), make_ADD_BtScoHeadset()));
+INSTANTIATE_TEST_SUITE_P(AudioDeviceDescriptionRoundTrip, AudioDeviceDescriptionRoundTripTest,
+                         testing::Values(AudioDeviceDescription{}, make_ADD_DefaultIn(),
+                                         make_ADD_DefaultOut(), make_ADD_WiredHeadset(),
+                                         make_ADD_BtScoHeadset()));
 
-class AudioFormatDescriptionRoundTripTest :
-        public testing::TestWithParam<AudioFormatDescription> {};
+class AudioFormatDescriptionRoundTripTest : public testing::TestWithParam<AudioFormatDescription> {
+};
 TEST_P(AudioFormatDescriptionRoundTripTest, Aidl2Legacy2Aidl) {
     const auto initial = GetParam();
     auto conv = aidl2legacy_AudioFormatDescription_audio_format_t(initial);
@@ -282,6 +363,140 @@
     ASSERT_TRUE(convBack.ok());
     EXPECT_EQ(initial, convBack.value());
 }
-INSTANTIATE_TEST_SUITE_P(AudioFormatDescriptionRoundTrip,
-        AudioFormatDescriptionRoundTripTest,
-        testing::Values(make_AFD_Invalid(), AudioFormatDescription{}, make_AFD_Pcm16Bit()));
+INSTANTIATE_TEST_SUITE_P(AudioFormatDescriptionRoundTrip, AudioFormatDescriptionRoundTripTest,
+                         testing::Values(make_AFD_Invalid(), AudioFormatDescription{},
+                                         make_AFD_Pcm16Bit()));
+
+class AudioDirectModeRoundTripTest : public testing::TestWithParam<AudioDirectMode> {};
+TEST_P(AudioDirectModeRoundTripTest, Aidl2Legacy2Aidl) {
+    const auto initial = GetParam();
+    auto conv = aidl2legacy_AudioDirectMode_audio_direct_mode_t(initial);
+    ASSERT_TRUE(conv.ok());
+    auto convBack = legacy2aidl_audio_direct_mode_t_AudioDirectMode(conv.value());
+    ASSERT_TRUE(convBack.ok());
+    EXPECT_EQ(initial, convBack.value());
+}
+INSTANTIATE_TEST_SUITE_P(AudioDirectMode, AudioDirectModeRoundTripTest,
+                         testing::Values(AudioDirectMode::NONE, AudioDirectMode::OFFLOAD,
+                                         AudioDirectMode::OFFLOAD_GAPLESS,
+                                         AudioDirectMode::BITSTREAM));
+
+class AudioStandardRoundTripTest : public testing::TestWithParam<AudioStandard> {};
+TEST_P(AudioStandardRoundTripTest, Aidl2Legacy2Aidl) {
+    const auto initial = GetParam();
+    auto conv = aidl2legacy_AudioStandard_audio_standard_t(initial);
+    ASSERT_TRUE(conv.ok());
+    auto convBack = legacy2aidl_audio_standard_t_AudioStandard(conv.value());
+    ASSERT_TRUE(convBack.ok());
+    EXPECT_EQ(initial, convBack.value());
+}
+INSTANTIATE_TEST_SUITE_P(AudioStandard, AudioStandardRoundTripTest,
+                         testing::Values(AudioStandard::NONE, AudioStandard::EDID));
+
+class AudioEncapsulationMetadataTypeRoundTripTest
+    : public testing::TestWithParam<AudioEncapsulationMetadataType> {};
+TEST_P(AudioEncapsulationMetadataTypeRoundTripTest, Aidl2Legacy2Aidl) {
+    const auto initial = GetParam();
+    auto conv =
+            aidl2legacy_AudioEncapsulationMetadataType_audio_encapsulation_metadata_type_t(initial);
+    ASSERT_TRUE(conv.ok());
+    auto convBack = legacy2aidl_audio_encapsulation_metadata_type_t_AudioEncapsulationMetadataType(
+            conv.value());
+    ASSERT_TRUE(convBack.ok());
+    EXPECT_EQ(initial, convBack.value());
+}
+INSTANTIATE_TEST_SUITE_P(AudioEncapsulationMetadataType,
+                         AudioEncapsulationMetadataTypeRoundTripTest,
+                         testing::Values(AudioEncapsulationMetadataType::NONE,
+                                         AudioEncapsulationMetadataType::FRAMEWORK_TUNER,
+                                         AudioEncapsulationMetadataType::DVB_AD_DESCRIPTOR));
+
+class AudioGainModeRoundTripTest : public testing::TestWithParam<AudioGainMode> {};
+TEST_P(AudioGainModeRoundTripTest, Aidl2Legacy2Aidl) {
+    const auto initial = GetParam();
+    auto conv = aidl2legacy_AudioGainMode_audio_gain_mode_t(initial);
+    ASSERT_TRUE(conv.ok());
+    auto convBack = legacy2aidl_audio_gain_mode_t_AudioGainMode(conv.value());
+    ASSERT_TRUE(convBack.ok());
+    EXPECT_EQ(initial, convBack.value());
+}
+INSTANTIATE_TEST_SUITE_P(AudioGainMode, AudioGainModeRoundTripTest,
+                         testing::Values(AudioGainMode::JOINT, AudioGainMode::CHANNELS,
+                                         AudioGainMode::RAMP));
+
+TEST(AudioTrackSecondaryOutputInfoRoundTripTest, Aidl2Legacy2Aidl) {
+    const auto initial = make_TrackSecondaryOutputInfo();
+    auto conv = aidl2legacy_TrackSecondaryOutputInfo_TrackSecondaryOutputInfoPair(initial);
+    ASSERT_TRUE(conv.ok());
+    auto convBack = legacy2aidl_TrackSecondaryOutputInfoPair_TrackSecondaryOutputInfo(conv.value());
+    ASSERT_TRUE(convBack.ok());
+    EXPECT_EQ(initial, convBack.value());
+}
+
+using ExtraAudioDescriptorParam = std::tuple<AudioStandard, AudioEncapsulationType>;
+class ExtraAudioDescriptorRoundTripTest : public testing::TestWithParam<ExtraAudioDescriptorParam> {
+};
+TEST_P(ExtraAudioDescriptorRoundTripTest, Aidl2Legacy2Aidl) {
+    ExtraAudioDescriptor initial =
+            make_ExtraAudioDescriptor(std::get<0>(GetParam()), std::get<1>(GetParam()));
+    auto conv = aidl2legacy_ExtraAudioDescriptor_audio_extra_audio_descriptor(initial);
+    ASSERT_TRUE(conv.ok());
+    auto convBack = legacy2aidl_audio_extra_audio_descriptor_ExtraAudioDescriptor(conv.value());
+    ASSERT_TRUE(convBack.ok());
+    EXPECT_EQ(initial, convBack.value());
+}
+
+INSTANTIATE_TEST_SUITE_P(
+        ExtraAudioDescriptor, ExtraAudioDescriptorRoundTripTest,
+        testing::Values(std::make_tuple(AudioStandard::NONE, AudioEncapsulationType::NONE),
+                        std::make_tuple(AudioStandard::EDID, AudioEncapsulationType::NONE),
+                        std::make_tuple(AudioStandard::EDID, AudioEncapsulationType::IEC61937)));
+
+TEST(AudioPortSessionExtRoundTripTest, Aidl2Legacy2Aidl) {
+    const int32_t initial = 7;
+    auto conv = aidl2legacy_int32_t_audio_port_session_ext(initial);
+    ASSERT_TRUE(conv.ok());
+    auto convBack = legacy2aidl_audio_port_session_ext_int32_t(conv.value());
+    ASSERT_TRUE(convBack.ok());
+    EXPECT_EQ(initial, convBack.value());
+}
+
+class AudioGainTest : public testing::TestWithParam<bool> {};
+TEST_P(AudioGainTest, Legacy2Aidl2Legacy) {
+    audio_port_v7 port;
+    port.num_gains = 2;
+    port.gains[0] = {.mode = AUDIO_GAIN_MODE_JOINT,
+                     .channel_mask = AUDIO_CHANNEL_IN_STEREO,
+                     .min_value = -3200,
+                     .max_value = 600,
+                     .default_value = 0,
+                     .step_value = 100,
+                     .min_ramp_ms = 10,
+                     .max_ramp_ms = 20};
+    port.gains[1] = {.mode = AUDIO_GAIN_MODE_JOINT,
+                     .channel_mask = AUDIO_CHANNEL_IN_MONO,
+                     .min_value = -8800,
+                     .max_value = 4000,
+                     .default_value = 0,
+                     .step_value = 100,
+                     .min_ramp_ms = 192,
+                     .max_ramp_ms = 224};
+
+    const auto isInput = GetParam();
+    for (int i = 0; i < port.num_gains; i++) {
+        auto initial = port.gains[i];
+        auto conv = legacy2aidl_audio_gain_AudioGain(initial, isInput);
+        ASSERT_TRUE(conv.ok());
+        auto convBack = aidl2legacy_AudioGain_audio_gain(conv.value(), isInput);
+        ASSERT_TRUE(convBack.ok());
+        EXPECT_EQ(initial.mode, convBack.value().mode);
+        EXPECT_EQ(initial.channel_mask, convBack.value().channel_mask);
+        EXPECT_EQ(initial.min_value, convBack.value().min_value);
+        EXPECT_EQ(initial.max_value, convBack.value().max_value);
+        EXPECT_EQ(initial.default_value, convBack.value().default_value);
+        EXPECT_EQ(initial.step_value, convBack.value().step_value);
+        EXPECT_EQ(initial.min_ramp_ms, convBack.value().min_ramp_ms);
+        EXPECT_EQ(initial.max_ramp_ms, convBack.value().max_ramp_ms);
+    }
+}
+INSTANTIATE_TEST_SUITE_P(AudioGain, AudioGainTest, testing::Values(true, false));
diff --git a/media/libaudioclient/tests/audio_aidl_status_tests.cpp b/media/libaudioclient/tests/audio_aidl_status_tests.cpp
index 5517091..8a7e6c1 100644
--- a/media/libaudioclient/tests/audio_aidl_status_tests.cpp
+++ b/media/libaudioclient/tests/audio_aidl_status_tests.cpp
@@ -37,25 +37,10 @@
 
 // Special status values are preserved on round trip.
 TEST(audio_aidl_status_tests, statusRoundTripSpecialValues) {
-    for (status_t status : {
-            OK,
-            UNKNOWN_ERROR,
-            NO_MEMORY,
-            INVALID_OPERATION,
-            BAD_VALUE,
-            BAD_TYPE,
-            NAME_NOT_FOUND,
-            PERMISSION_DENIED,
-            NO_INIT,
-            ALREADY_EXISTS,
-            DEAD_OBJECT,
-            FAILED_TRANSACTION,
-            BAD_INDEX,
-            NOT_ENOUGH_DATA,
-            WOULD_BLOCK,
-            TIMED_OUT,
-            UNKNOWN_TRANSACTION,
-            FDS_NOT_ALLOWED}) {
+    for (status_t status :
+         {OK, UNKNOWN_ERROR, NO_MEMORY, INVALID_OPERATION, BAD_VALUE, BAD_TYPE, NAME_NOT_FOUND,
+          PERMISSION_DENIED, NO_INIT, ALREADY_EXISTS, DEAD_OBJECT, FAILED_TRANSACTION, BAD_INDEX,
+          NOT_ENOUGH_DATA, WOULD_BLOCK, TIMED_OUT, UNKNOWN_TRANSACTION, FDS_NOT_ALLOWED}) {
         ASSERT_EQ(status, statusTFromBinderStatus(binderStatusFromStatusT(status)));
     }
 }
@@ -63,47 +48,29 @@
 // Binder exceptions show as an error (not fixed at this time); these come fromExceptionCode().
 TEST(audio_aidl_status_tests, binderStatusExceptions) {
     for (int exceptionCode : {
-            //Status::EX_NONE,
-            Status::EX_SECURITY,
-            Status::EX_BAD_PARCELABLE,
-            Status::EX_ILLEGAL_ARGUMENT,
-            Status::EX_NULL_POINTER,
-            Status::EX_ILLEGAL_STATE,
-            Status::EX_NETWORK_MAIN_THREAD,
-            Status::EX_UNSUPPORTED_OPERATION,
-            //Status::EX_SERVICE_SPECIFIC, -- tested fromServiceSpecificError()
-            Status::EX_PARCELABLE,
-            // This is special and Java specific; see Parcel.java.
-            Status::EX_HAS_REPLY_HEADER,
-            // This is special, and indicates to C++ binder proxies that the
-            // transaction has failed at a low level.
-            //Status::EX_TRANSACTION_FAILED, -- tested fromStatusT().
-            }) {
+                 // Status::EX_NONE,
+                 Status::EX_SECURITY, Status::EX_BAD_PARCELABLE, Status::EX_ILLEGAL_ARGUMENT,
+                 Status::EX_NULL_POINTER, Status::EX_ILLEGAL_STATE, Status::EX_NETWORK_MAIN_THREAD,
+                 Status::EX_UNSUPPORTED_OPERATION,
+                 // Status::EX_SERVICE_SPECIFIC, -- tested fromServiceSpecificError()
+                 Status::EX_PARCELABLE,
+                 // This is special and Java specific; see Parcel.java.
+                 Status::EX_HAS_REPLY_HEADER,
+                 // This is special, and indicates to C++ binder proxies that the
+                 // transaction has failed at a low level.
+                 // Status::EX_TRANSACTION_FAILED, -- tested fromStatusT().
+         }) {
         ASSERT_NE(OK, statusTFromBinderStatus(Status::fromExceptionCode(exceptionCode)));
     }
 }
 
 // Binder transaction errors show exactly in status_t; these come fromStatusT().
 TEST(audio_aidl_status_tests, binderStatusTransactionError) {
-    for (status_t status : {
-            OK, // Note: fromStatusT does check if this is 0, so this is no error.
-            UNKNOWN_ERROR,
-            NO_MEMORY,
-            INVALID_OPERATION,
-            BAD_VALUE,
-            BAD_TYPE,
-            NAME_NOT_FOUND,
-            PERMISSION_DENIED,
-            NO_INIT,
-            ALREADY_EXISTS,
-            DEAD_OBJECT,
-            FAILED_TRANSACTION,
-            BAD_INDEX,
-            NOT_ENOUGH_DATA,
-            WOULD_BLOCK,
-            TIMED_OUT,
-            UNKNOWN_TRANSACTION,
-            FDS_NOT_ALLOWED}) {
+    for (status_t status :
+         {OK,  // Note: fromStatusT does check if this is 0, so this is no error.
+          UNKNOWN_ERROR, NO_MEMORY, INVALID_OPERATION, BAD_VALUE, BAD_TYPE, NAME_NOT_FOUND,
+          PERMISSION_DENIED, NO_INIT, ALREADY_EXISTS, DEAD_OBJECT, FAILED_TRANSACTION, BAD_INDEX,
+          NOT_ENOUGH_DATA, WOULD_BLOCK, TIMED_OUT, UNKNOWN_TRANSACTION, FDS_NOT_ALLOWED}) {
         ASSERT_EQ(status, statusTFromBinderStatus(Status::fromStatusT(status)));
     }
 }
diff --git a/media/libaudioclient/tests/audio_test_template.xml b/media/libaudioclient/tests/audio_test_template.xml
new file mode 100644
index 0000000..ed0cb21
--- /dev/null
+++ b/media/libaudioclient/tests/audio_test_template.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+<configuration description="Unit test configuration for {MODULE}">
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer" />
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push-file" key="{MODULE}" value="/data/local/tmp/{MODULE}" />
+
+        <!-- Files used for audio testing -->
+        <option name="push-file" key="bbb_1ch_8kHz_s16le.raw" value="/data/local/tmp/bbb_1ch_8kHz_s16le.raw" />
+        <option name="push-file" key="bbb_2ch_24kHz_s16le.raw" value="/data/local/tmp/bbb_2ch_24kHz_s16le.raw" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.GTest" >
+        <option name="native-test-device-path" value="/data/local/tmp" />
+        <option name="module-name" value="{MODULE}" />
+    </test>
+</configuration>
diff --git a/media/libaudioclient/tests/audio_test_utils.cpp b/media/libaudioclient/tests/audio_test_utils.cpp
new file mode 100644
index 0000000..44f0f50
--- /dev/null
+++ b/media/libaudioclient/tests/audio_test_utils.cpp
@@ -0,0 +1,904 @@
+/*
+ * Copyright (C) 2021 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_NDEBUG 0
+#define LOG_TAG "AudioTestUtils"
+
+#include <system/audio_config.h>
+#include <utils/Log.h>
+
+#include "audio_test_utils.h"
+
+template <class T>
+constexpr void (*xmlDeleter)(T* t);
+template <>
+constexpr auto xmlDeleter<xmlDoc> = xmlFreeDoc;
+template <>
+constexpr auto xmlDeleter<xmlChar> = [](xmlChar* s) { xmlFree(s); };
+
+/** @return a unique_ptr with the correct deleter for the libxml2 object. */
+template <class T>
+constexpr auto make_xmlUnique(T* t) {
+    // Wrap deleter in lambda to enable empty base optimization
+    auto deleter = [](T* t) { xmlDeleter<T>(t); };
+    return std::unique_ptr<T, decltype(deleter)>{t, deleter};
+}
+
+// Generates a random string.
+void CreateRandomFile(int& fd) {
+    std::string filename = "/data/local/tmp/record-XXXXXX";
+    fd = mkstemp(filename.data());
+}
+
+void OnAudioDeviceUpdateNotifier::onAudioDeviceUpdate(audio_io_handle_t audioIo,
+                                                      audio_port_handle_t deviceId) {
+    std::unique_lock<std::mutex> lock{mMutex};
+    ALOGD("%s  audioIo=%d deviceId=%d", __func__, audioIo, deviceId);
+    mAudioIo = audioIo;
+    mDeviceId = deviceId;
+    mCondition.notify_all();
+}
+
+status_t OnAudioDeviceUpdateNotifier::waitForAudioDeviceCb() {
+    std::unique_lock<std::mutex> lock{mMutex};
+    if (mAudioIo == AUDIO_IO_HANDLE_NONE) {
+        mCondition.wait_for(lock, std::chrono::milliseconds(500));
+        if (mAudioIo == AUDIO_IO_HANDLE_NONE) return TIMED_OUT;
+    }
+    return OK;
+}
+
+AudioPlayback::AudioPlayback(uint32_t sampleRate, audio_format_t format,
+                             audio_channel_mask_t channelMask, audio_output_flags_t flags,
+                             audio_session_t sessionId, AudioTrack::transfer_type transferType,
+                             audio_attributes_t* attributes, audio_offload_info_t* info)
+    : mSampleRate(sampleRate),
+      mFormat(format),
+      mChannelMask(channelMask),
+      mFlags(flags),
+      mSessionId(sessionId),
+      mTransferType(transferType),
+      mAttributes(attributes),
+      mOffloadInfo(info) {
+    mStopPlaying = false;
+    mBytesUsedSoFar = 0;
+    mState = PLAY_NO_INIT;
+    mMemCapacity = 0;
+    mMemoryDealer = nullptr;
+    mMemory = nullptr;
+}
+
+AudioPlayback::~AudioPlayback() {
+    stop();
+}
+
+status_t AudioPlayback::create() {
+    if (mState != PLAY_NO_INIT) return INVALID_OPERATION;
+    std::string packageName{"AudioPlayback"};
+    AttributionSourceState attributionSource;
+    attributionSource.packageName = packageName;
+    attributionSource.uid = VALUE_OR_FATAL(legacy2aidl_uid_t_int32_t(getuid()));
+    attributionSource.pid = VALUE_OR_FATAL(legacy2aidl_pid_t_int32_t(getpid()));
+    attributionSource.token = sp<BBinder>::make();
+    if (mTransferType == AudioTrack::TRANSFER_OBTAIN) {
+        mTrack = new AudioTrack(attributionSource);
+        mTrack->set(AUDIO_STREAM_MUSIC, mSampleRate, mFormat, mChannelMask, 0 /* frameCount */,
+                    mFlags, nullptr /* callback */, 0 /* notificationFrames */,
+                    nullptr /* sharedBuffer */, false /*canCallJava */, mSessionId, mTransferType,
+                    mOffloadInfo, attributionSource, mAttributes);
+    } else if (mTransferType == AudioTrack::TRANSFER_SHARED) {
+        mTrack = new AudioTrack(AUDIO_STREAM_MUSIC, mSampleRate, mFormat, mChannelMask, mMemory,
+                                mFlags, wp<AudioTrack::IAudioTrackCallback>::fromExisting(this), 0,
+                                mSessionId, mTransferType, nullptr, attributionSource, mAttributes);
+    } else {
+        ALOGE("Test application is not handling transfer type %s",
+              AudioTrack::convertTransferToText(mTransferType));
+        return INVALID_OPERATION;
+    }
+    mTrack->setCallerName(packageName);
+    status_t status = mTrack->initCheck();
+    if (NO_ERROR == status) mState = PLAY_READY;
+    return status;
+}
+
+status_t AudioPlayback::loadResource(const char* name) {
+    status_t status = OK;
+    FILE* fp = fopen(name, "rbe");
+    struct stat buf {};
+    if (fp && !fstat(fileno(fp), &buf)) {
+        mMemCapacity = buf.st_size;
+        mMemoryDealer = new MemoryDealer(mMemCapacity, "AudioPlayback");
+        if (nullptr == mMemoryDealer.get()) {
+            ALOGE("couldn't get MemoryDealer!");
+            fclose(fp);
+            return NO_MEMORY;
+        }
+        mMemory = mMemoryDealer->allocate(mMemCapacity);
+        if (nullptr == mMemory.get()) {
+            ALOGE("couldn't get IMemory!");
+            fclose(fp);
+            return NO_MEMORY;
+        }
+        uint8_t* ipBuffer = static_cast<uint8_t*>(static_cast<void*>(mMemory->unsecurePointer()));
+        fread(ipBuffer, sizeof(uint8_t), mMemCapacity, fp);
+    } else {
+        ALOGE("unable to open input file %s", name);
+        status = NAME_NOT_FOUND;
+    }
+    if (fp) fclose(fp);
+    return status;
+}
+
+sp<AudioTrack> AudioPlayback::getAudioTrackHandle() {
+    return (PLAY_NO_INIT != mState) ? mTrack : nullptr;
+}
+
+status_t AudioPlayback::start() {
+    status_t status;
+    if (PLAY_READY != mState) {
+        return INVALID_OPERATION;
+    } else {
+        status = mTrack->start();
+        if (OK == status) {
+            mState = PLAY_STARTED;
+            LOG_FATAL_IF(false != mTrack->stopped());
+        }
+    }
+    return status;
+}
+
+void AudioPlayback::onBufferEnd() {
+    std::unique_lock<std::mutex> lock{mMutex};
+    mStopPlaying = true;
+    mCondition.notify_all();
+}
+
+status_t AudioPlayback::fillBuffer() {
+    if (PLAY_STARTED != mState && PLAY_STOPPED != mState) return INVALID_OPERATION;
+    int retry = 25;
+    uint8_t* ipBuffer = static_cast<uint8_t*>(static_cast<void*>(mMemory->unsecurePointer()));
+    size_t nonContig = 0;
+    size_t bytesAvailable = mMemCapacity - mBytesUsedSoFar;
+    while (bytesAvailable > 0) {
+        AudioTrack::Buffer trackBuffer;
+        trackBuffer.frameCount = mTrack->frameCount() * 2;
+        status_t status = mTrack->obtainBuffer(&trackBuffer, retry, &nonContig);
+        if (OK == status) {
+            size_t bytesToCopy = std::min(bytesAvailable, trackBuffer.size());
+            if (bytesToCopy > 0) {
+                memcpy(trackBuffer.data(), ipBuffer + mBytesUsedSoFar, bytesToCopy);
+            }
+            mTrack->releaseBuffer(&trackBuffer);
+            mBytesUsedSoFar += bytesToCopy;
+            bytesAvailable = mMemCapacity - mBytesUsedSoFar;
+            if (bytesAvailable == 0) {
+                stop();
+            }
+        } else if (WOULD_BLOCK == status) {
+            if (mStopPlaying)
+                return OK;
+            else
+                return TIMED_OUT;
+        }
+    }
+    return OK;
+}
+
+status_t AudioPlayback::waitForConsumption(bool testSeek) {
+    if (PLAY_STARTED != mState) return INVALID_OPERATION;
+    // in static buffer mode, lets not play clips with duration > 30 sec
+    int retry = 30;
+    // Total number of frames in the input file.
+    size_t totalFrameCount = mMemCapacity / mTrack->frameSize();
+    while (!mStopPlaying && retry > 0) {
+        // Get the total numbers of frames played.
+        uint32_t currPosition;
+        mTrack->getPosition(&currPosition);
+        if (testSeek && (currPosition > totalFrameCount * 0.6)) {
+            testSeek = false;
+            if (!mTrack->hasStarted()) return BAD_VALUE;
+            mTrack->pauseAndWait(std::chrono::seconds(2));
+            if (mTrack->hasStarted()) return BAD_VALUE;
+            mTrack->reload();
+            mTrack->getPosition(&currPosition);
+            if (currPosition != 0) return BAD_VALUE;
+            mTrack->start();
+            while (currPosition < totalFrameCount * 0.3) {
+                mTrack->getPosition(&currPosition);
+            }
+            mTrack->pauseAndWait(std::chrono::seconds(2));
+            uint32_t setPosition = totalFrameCount * 0.9;
+            mTrack->setPosition(setPosition);
+            uint32_t bufferPosition;
+            mTrack->getBufferPosition(&bufferPosition);
+            if (bufferPosition != setPosition) return BAD_VALUE;
+            mTrack->start();
+        }
+        std::this_thread::sleep_for(std::chrono::milliseconds(300));
+        retry--;
+    }
+    if (!mStopPlaying) return TIMED_OUT;
+    return OK;
+}
+
+status_t AudioPlayback::onProcess(bool testSeek) {
+    if (mTransferType == AudioTrack::TRANSFER_SHARED)
+        return waitForConsumption(testSeek);
+    else if (mTransferType == AudioTrack::TRANSFER_OBTAIN)
+        return fillBuffer();
+    else
+        return INVALID_OPERATION;
+}
+
+void AudioPlayback::stop() {
+    std::unique_lock<std::mutex> lock{mMutex};
+    mStopPlaying = true;
+    if (mState != PLAY_STOPPED) {
+        int32_t msec = 0;
+        (void)mTrack->pendingDuration(&msec);
+        mTrack->stopAndJoinCallbacks();
+        LOG_FATAL_IF(true != mTrack->stopped());
+        mState = PLAY_STOPPED;
+        if (msec > 0) {
+            ALOGD("deleting recycled track, waiting for data drain (%d msec)", msec);
+            usleep(msec * 1000LL);
+        }
+    }
+}
+
+// hold pcm data sent by AudioRecord
+RawBuffer::RawBuffer(int64_t ptsPipeline, int64_t ptsManual, int32_t capacity)
+    : mData(capacity > 0 ? new uint8_t[capacity] : nullptr),
+      mPtsPipeline(ptsPipeline),
+      mPtsManual(ptsManual),
+      mCapacity(capacity) {}
+
+// Simple AudioCapture
+size_t AudioCapture::onMoreData(const AudioRecord::Buffer& buffer) {
+    if (mState != REC_STARTED) {
+        ALOGE("Unexpected Callback from audiorecord, not reading data");
+        return 0;
+    }
+
+    // no more frames to read
+    if (mNumFramesReceived > mNumFramesToRecord || mStopRecording) {
+        mStopRecording = true;
+        return 0;
+    }
+
+    int64_t timeUs = 0, position = 0, timeNs = 0;
+    ExtendedTimestamp ts;
+    ExtendedTimestamp::Location location;
+    const int32_t usPerSec = 1000000;
+
+    if (mRecord->getTimestamp(&ts) == OK &&
+        ts.getBestTimestamp(&position, &timeNs, ExtendedTimestamp::TIMEBASE_MONOTONIC, &location) ==
+                OK) {
+        // Use audio timestamp.
+        timeUs = timeNs / 1000 -
+                 (position - mNumFramesReceived + mNumFramesLost) * usPerSec / mSampleRate;
+    } else {
+        // This should not happen in normal case.
+        ALOGW("Failed to get audio timestamp, fallback to use systemclock");
+        timeUs = systemTime() / 1000LL;
+        // Estimate the real sampling time of the 1st sample in this buffer
+        // from AudioRecord's latency. (Apply this adjustment first so that
+        // the start time logic is not affected.)
+        timeUs -= mRecord->latency() * 1000LL;
+    }
+
+    ALOGV("dataCallbackTimestamp: %" PRId64 " us", timeUs);
+
+    const size_t frameSize = mRecord->frameSize();
+    uint64_t numLostBytes = (uint64_t)mRecord->getInputFramesLost() * frameSize;
+    if (numLostBytes > 0) {
+        ALOGW("Lost audio record data: %" PRIu64 " bytes", numLostBytes);
+    }
+    std::deque<RawBuffer> tmpQueue;
+    while (numLostBytes > 0) {
+        uint64_t bufferSize = numLostBytes;
+        if (numLostBytes > mMaxBytesPerCallback) {
+            numLostBytes -= mMaxBytesPerCallback;
+            bufferSize = mMaxBytesPerCallback;
+        } else {
+            numLostBytes = 0;
+        }
+        const int64_t timestampUs =
+                ((1000000LL * mNumFramesReceived) + (mRecord->getSampleRate() >> 1)) /
+                mRecord->getSampleRate();
+        RawBuffer emptyBuffer{timeUs, timestampUs, static_cast<int32_t>(bufferSize)};
+        memset(emptyBuffer.mData.get(), 0, bufferSize);
+        mNumFramesLost += bufferSize / frameSize;
+        mNumFramesReceived += bufferSize / frameSize;
+        tmpQueue.push_back(std::move(emptyBuffer));
+    }
+
+    if (buffer.size() == 0) {
+        ALOGW("Nothing is available from AudioRecord callback buffer");
+    } else {
+        const size_t bufferSize = buffer.size();
+        const int64_t timestampUs =
+                ((1000000LL * mNumFramesReceived) + (mRecord->getSampleRate() >> 1)) /
+                mRecord->getSampleRate();
+        RawBuffer audioBuffer{timeUs, timestampUs, static_cast<int32_t>(bufferSize)};
+        memcpy(audioBuffer.mData.get(), buffer.data(), bufferSize);
+        mNumFramesReceived += bufferSize / frameSize;
+        tmpQueue.push_back(std::move(audioBuffer));
+    }
+
+    if (tmpQueue.size() > 0) {
+        std::unique_lock<std::mutex> lock{mMutex};
+        for (auto it = tmpQueue.begin(); it != tmpQueue.end(); it++)
+            mBuffersReceived.push_back(std::move(*it));
+        mCondition.notify_all();
+    }
+    return buffer.size();
+}
+
+void AudioCapture::onOverrun() {
+    ALOGV("received event overrun");
+    mBufferOverrun = true;
+}
+
+void AudioCapture::onMarker(uint32_t markerPosition) {
+    ALOGV("received Callback at position %d", markerPosition);
+    mReceivedCbMarkerAtPosition = markerPosition;
+}
+
+void AudioCapture::onNewPos(uint32_t markerPosition) {
+    ALOGV("received Callback at position %d", markerPosition);
+    mReceivedCbMarkerCount++;
+}
+
+void AudioCapture::onNewIAudioRecord() {
+    ALOGV("IAudioRecord is re-created");
+}
+
+AudioCapture::AudioCapture(audio_source_t inputSource, uint32_t sampleRate, audio_format_t format,
+                           audio_channel_mask_t channelMask, audio_input_flags_t flags,
+                           audio_session_t sessionId, AudioRecord::transfer_type transferType)
+    : mInputSource(inputSource),
+      mSampleRate(sampleRate),
+      mFormat(format),
+      mChannelMask(channelMask),
+      mFlags(flags),
+      mSessionId(sessionId),
+      mTransferType(transferType) {
+    mFrameCount = 0;
+    mNotificationFrames = 0;
+    mNumFramesToRecord = 0;
+    mNumFramesReceived = 0;
+    mNumFramesLost = 0;
+    mBufferOverrun = false;
+    mMarkerPosition = 0;
+    mMarkerPeriod = 0;
+    mReceivedCbMarkerAtPosition = -1;
+    mReceivedCbMarkerCount = 0;
+    mState = REC_NO_INIT;
+    mStopRecording = false;
+#if RECORD_TO_FILE
+    CreateRandomFile(mOutFileFd);
+#endif
+}
+
+AudioCapture::~AudioCapture() {
+    if (mOutFileFd > 0) close(mOutFileFd);
+    stop();
+}
+
+status_t AudioCapture::create() {
+    if (mState != REC_NO_INIT) return INVALID_OPERATION;
+    // get Min Frame Count
+    size_t minFrameCount;
+    status_t status =
+            AudioRecord::getMinFrameCount(&minFrameCount, mSampleRate, mFormat, mChannelMask);
+    if (NO_ERROR != status) return status;
+    // Limit notificationFrames basing on client bufferSize
+    const int samplesPerFrame = audio_channel_count_from_in_mask(mChannelMask);
+    const int bytesPerSample = audio_bytes_per_sample(mFormat);
+    mNotificationFrames = mMaxBytesPerCallback / (samplesPerFrame * bytesPerSample);
+    // select frameCount to be at least minFrameCount
+    mFrameCount = 2 * mNotificationFrames;
+    while (mFrameCount < minFrameCount) {
+        mFrameCount += mNotificationFrames;
+    }
+    if (mFlags & AUDIO_INPUT_FLAG_FAST) {
+        ALOGW("Overriding all previous computations");
+        mFrameCount = 0;
+        mNotificationFrames = 0;
+    }
+    mNumFramesToRecord = (mSampleRate * 0.25);  // record .25 sec
+    std::string packageName{"AudioCapture"};
+    AttributionSourceState attributionSource;
+    attributionSource.packageName = packageName;
+    attributionSource.uid = VALUE_OR_FATAL(legacy2aidl_uid_t_int32_t(getuid()));
+    attributionSource.pid = VALUE_OR_FATAL(legacy2aidl_pid_t_int32_t(getpid()));
+    attributionSource.token = sp<BBinder>::make();
+    if (mTransferType == AudioRecord::TRANSFER_OBTAIN) {
+        if (mSampleRate == 48000) {  // test all available constructors
+            mRecord = new AudioRecord(mInputSource, mSampleRate, mFormat, mChannelMask,
+                                      attributionSource, mFrameCount, nullptr /* callback */,
+                                      mNotificationFrames, mSessionId, mTransferType, mFlags);
+        } else {
+            mRecord = new AudioRecord(attributionSource);
+            status = mRecord->set(mInputSource, mSampleRate, mFormat, mChannelMask, mFrameCount,
+                                  nullptr /* callback */, 0 /* notificationFrames */,
+                                  false /* canCallJava */, mSessionId, mTransferType, mFlags,
+                                  attributionSource.uid, attributionSource.pid);
+        }
+        if (NO_ERROR != status) return status;
+    } else if (mTransferType == AudioRecord::TRANSFER_CALLBACK) {
+        mRecord = new AudioRecord(mInputSource, mSampleRate, mFormat, mChannelMask,
+                                  attributionSource, mFrameCount, this, mNotificationFrames,
+                                  mSessionId, mTransferType, mFlags);
+    } else {
+        ALOGE("Test application is not handling transfer type %s",
+              AudioRecord::convertTransferToText(mTransferType));
+        return NO_INIT;
+    }
+    mRecord->setCallerName(packageName);
+    status = mRecord->initCheck();
+    if (NO_ERROR == status) mState = REC_READY;
+    if (mFlags & AUDIO_INPUT_FLAG_FAST) {
+        mFrameCount = mRecord->frameCount();
+        mNotificationFrames = mRecord->getNotificationPeriodInFrames();
+        mMaxBytesPerCallback = mNotificationFrames * samplesPerFrame * bytesPerSample;
+    }
+    return status;
+}
+
+sp<AudioRecord> AudioCapture::getAudioRecordHandle() {
+    return (REC_NO_INIT == mState) ? nullptr : mRecord;
+}
+
+status_t AudioCapture::start(AudioSystem::sync_event_t event, audio_session_t triggerSession) {
+    status_t status;
+    if (REC_READY != mState) {
+        return INVALID_OPERATION;
+    } else {
+        status = mRecord->start(event, triggerSession);
+        if (OK == status) {
+            mState = REC_STARTED;
+            LOG_FATAL_IF(false != mRecord->stopped());
+        }
+    }
+    return status;
+}
+
+status_t AudioCapture::stop() {
+    status_t status = OK;
+    mStopRecording = true;
+    if (mState != REC_STOPPED) {
+        if (mInputSource != AUDIO_SOURCE_DEFAULT) {
+            bool state = false;
+            status = AudioSystem::isSourceActive(mInputSource, &state);
+            if (status == OK && !state) status = BAD_VALUE;
+        }
+        mRecord->stopAndJoinCallbacks();
+        mState = REC_STOPPED;
+        LOG_FATAL_IF(true != mRecord->stopped());
+    }
+    return status;
+}
+
+status_t AudioCapture::obtainBuffer(RawBuffer& buffer) {
+    if (REC_STARTED != mState && REC_STOPPED != mState) return INVALID_OPERATION;
+    int retry = 25;
+    AudioRecord::Buffer recordBuffer;
+    recordBuffer.frameCount = mNotificationFrames;
+    size_t nonContig = 0;
+    status_t status = mRecord->obtainBuffer(&recordBuffer, retry, &nonContig);
+    if (OK == status) {
+        const int64_t timestampUs =
+                ((1000000LL * mNumFramesReceived) + (mRecord->getSampleRate() >> 1)) /
+                mRecord->getSampleRate();
+        RawBuffer buff{-1, timestampUs, static_cast<int32_t>(recordBuffer.size())};
+        memcpy(buff.mData.get(), recordBuffer.data(), recordBuffer.size());
+        buffer = std::move(buff);
+        mNumFramesReceived += recordBuffer.size() / mRecord->frameSize();
+        mRecord->releaseBuffer(&recordBuffer);
+        if (mNumFramesReceived > mNumFramesToRecord) {
+            stop();
+        }
+    } else if (status == WOULD_BLOCK) {
+        if (mStopRecording)
+            return WOULD_BLOCK;
+        else
+            return TIMED_OUT;
+    }
+    return OK;
+}
+
+status_t AudioCapture::obtainBufferCb(RawBuffer& buffer) {
+    if (REC_STARTED != mState) return INVALID_OPERATION;
+    int retry = 10;
+    std::unique_lock<std::mutex> lock{mMutex};
+    while (mBuffersReceived.empty() && !mStopRecording && retry > 0) {
+        mCondition.wait_for(lock, std::chrono::milliseconds(100));
+        retry--;
+    }
+    if (!mBuffersReceived.empty()) {
+        auto it = mBuffersReceived.begin();
+        buffer = std::move(*it);
+        mBuffersReceived.erase(it);
+    } else {
+        if (retry == 0) return TIMED_OUT;
+        if (mStopRecording)
+            return WOULD_BLOCK;
+        else
+            return UNKNOWN_ERROR;
+    }
+    return OK;
+}
+
+status_t AudioCapture::audioProcess() {
+    RawBuffer buffer;
+    while (true) {
+        status_t status;
+        if (mTransferType == AudioRecord::TRANSFER_CALLBACK)
+            status = obtainBufferCb(buffer);
+        else
+            status = obtainBuffer(buffer);
+        switch (status) {
+            case OK:
+                if (mOutFileFd > 0) {
+                    const char* ptr =
+                            static_cast<const char*>(static_cast<void*>(buffer.mData.get()));
+                    write(mOutFileFd, ptr, buffer.mCapacity);
+                }
+                break;
+            case WOULD_BLOCK:
+                return OK;
+            case TIMED_OUT:          // "recorder application timed out from receiving buffers"
+            case NO_INIT:            // "recorder not initialized"
+            case INVALID_OPERATION:  // "recorder not started"
+            case UNKNOWN_ERROR:      // "Unknown error"
+            default:
+                return status;
+        }
+    }
+}
+
+status_t listAudioPorts(std::vector<audio_port_v7>& portsVec) {
+    int attempts = 5;
+    status_t status;
+    unsigned int generation1, generation;
+    unsigned int numPorts = 0;
+    do {
+        if (attempts-- < 0) {
+            status = TIMED_OUT;
+            break;
+        }
+        status = AudioSystem::listAudioPorts(AUDIO_PORT_ROLE_NONE, AUDIO_PORT_TYPE_NONE, &numPorts,
+                                             nullptr, &generation1);
+        if (status != NO_ERROR) {
+            ALOGE("AudioSystem::listAudioPorts returned error %d", status);
+            break;
+        }
+        portsVec.resize(numPorts);
+        status = AudioSystem::listAudioPorts(AUDIO_PORT_ROLE_NONE, AUDIO_PORT_TYPE_NONE, &numPorts,
+                                             portsVec.data(), &generation);
+    } while (generation1 != generation && status == NO_ERROR);
+    if (status != NO_ERROR) {
+        numPorts = 0;
+        portsVec.clear();
+    }
+    return status;
+}
+
+status_t getPortById(const audio_port_handle_t portId, audio_port_v7& port) {
+    std::vector<struct audio_port_v7> ports;
+    status_t status = listAudioPorts(ports);
+    if (status != OK) return status;
+    for (auto i = 0; i < ports.size(); i++) {
+        if (ports[i].id == portId) {
+            port = ports[i];
+            return OK;
+        }
+    }
+    return BAD_VALUE;
+}
+
+status_t getPortByAttributes(audio_port_role_t role, audio_port_type_t type,
+                             audio_devices_t deviceType, audio_port_v7& port) {
+    std::vector<struct audio_port_v7> ports;
+    status_t status = listAudioPorts(ports);
+    if (status != OK) return status;
+    for (auto i = 0; i < ports.size(); i++) {
+        if (ports[i].role == role && ports[i].type == type &&
+            ports[i].ext.device.type == deviceType) {
+            port = ports[i];
+            return OK;
+        }
+    }
+    return BAD_VALUE;
+}
+
+status_t listAudioPatches(std::vector<struct audio_patch>& patchesVec) {
+    int attempts = 5;
+    status_t status;
+    unsigned int generation1, generation;
+    unsigned int numPatches = 0;
+    do {
+        if (attempts-- < 0) {
+            status = TIMED_OUT;
+            break;
+        }
+        status = AudioSystem::listAudioPatches(&numPatches, nullptr, &generation1);
+        if (status != NO_ERROR) {
+            ALOGE("AudioSystem::listAudioPatches returned error %d", status);
+            break;
+        }
+        patchesVec.resize(numPatches);
+        status = AudioSystem::listAudioPatches(&numPatches, patchesVec.data(), &generation);
+    } while (generation1 != generation && status == NO_ERROR);
+    if (status != NO_ERROR) {
+        numPatches = 0;
+        patchesVec.clear();
+    }
+    return status;
+}
+
+status_t getPatchForOutputMix(audio_io_handle_t audioIo, audio_patch& patch) {
+    std::vector<struct audio_patch> patches;
+    status_t status = listAudioPatches(patches);
+    if (status != OK) return status;
+
+    for (auto i = 0; i < patches.size(); i++) {
+        for (auto j = 0; j < patches[i].num_sources; j++) {
+            if (patches[i].sources[j].type == AUDIO_PORT_TYPE_MIX &&
+                patches[i].sources[j].ext.mix.handle == audioIo) {
+                patch = patches[i];
+                return OK;
+            }
+        }
+    }
+    return BAD_VALUE;
+}
+
+status_t getPatchForInputMix(audio_io_handle_t audioIo, audio_patch& patch) {
+    std::vector<struct audio_patch> patches;
+    status_t status = listAudioPatches(patches);
+    if (status != OK) return status;
+
+    for (auto i = 0; i < patches.size(); i++) {
+        for (auto j = 0; j < patches[i].num_sinks; j++) {
+            if (patches[i].sinks[j].type == AUDIO_PORT_TYPE_MIX &&
+                patches[i].sinks[j].ext.mix.handle == audioIo) {
+                patch = patches[i];
+                return OK;
+            }
+        }
+    }
+    return BAD_VALUE;
+}
+
+bool patchContainsOutputDevice(audio_port_handle_t deviceId, audio_patch patch) {
+    for (auto j = 0; j < patch.num_sinks; j++) {
+        if (patch.sinks[j].type == AUDIO_PORT_TYPE_DEVICE && patch.sinks[j].id == deviceId) {
+            return true;
+        }
+    }
+    return false;
+}
+
+bool patchContainsInputDevice(audio_port_handle_t deviceId, audio_patch patch) {
+    for (auto j = 0; j < patch.num_sources; j++) {
+        if (patch.sources[j].type == AUDIO_PORT_TYPE_DEVICE && patch.sources[j].id == deviceId) {
+            return true;
+        }
+    }
+    return false;
+}
+
+bool checkPatchPlayback(audio_io_handle_t audioIo, audio_port_handle_t deviceId) {
+    struct audio_patch patch;
+    if (getPatchForOutputMix(audioIo, patch) == OK) {
+        return patchContainsOutputDevice(deviceId, patch);
+    }
+    return false;
+}
+
+bool checkPatchCapture(audio_io_handle_t audioIo, audio_port_handle_t deviceId) {
+    struct audio_patch patch;
+    if (getPatchForInputMix(audioIo, patch) == OK) {
+        return patchContainsInputDevice(deviceId, patch);
+    }
+    return false;
+}
+
+std::string dumpPortConfig(const audio_port_config& port) {
+    std::ostringstream result;
+    std::string deviceInfo;
+    if (port.type == AUDIO_PORT_TYPE_DEVICE) {
+        if (port.ext.device.type & AUDIO_DEVICE_BIT_IN) {
+            InputDeviceConverter::maskToString(port.ext.device.type, deviceInfo);
+        } else {
+            OutputDeviceConverter::maskToString(port.ext.device.type, deviceInfo);
+        }
+        deviceInfo += std::string(", address = ") + port.ext.device.address;
+    }
+    result << "audio_port_handle_t = " << port.id << ", "
+           << "Role = " << (port.role == AUDIO_PORT_ROLE_SOURCE ? "source" : "sink") << ", "
+           << "Type = " << (port.type == AUDIO_PORT_TYPE_DEVICE ? "device" : "mix") << ", "
+           << "deviceInfo = " << (port.type == AUDIO_PORT_TYPE_DEVICE ? deviceInfo : "") << ", "
+           << "config_mask = 0x" << std::hex << port.config_mask << std::dec << ", ";
+    if (port.config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) {
+        result << "sample rate = " << port.sample_rate << ", ";
+    }
+    if (port.config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) {
+        result << "channel mask = " << port.channel_mask << ", ";
+    }
+    if (port.config_mask & AUDIO_PORT_CONFIG_FORMAT) {
+        result << "format = " << port.format << ", ";
+    }
+    result << "input flags = " << port.flags.input << ", ";
+    result << "output flags = " << port.flags.output << ", ";
+    result << "mix io handle = " << (port.type == AUDIO_PORT_TYPE_DEVICE ? 0 : port.ext.mix.handle)
+           << "\n";
+    return result.str();
+}
+
+std::string dumpPatch(const audio_patch& patch) {
+    std::ostringstream result;
+    result << "----------------- Dumping Patch ------------ \n";
+    result << "Patch Handle: " << patch.id << ", sources: " << patch.num_sources
+           << ", sink: " << patch.num_sinks << "\n";
+    audio_port_v7 port;
+    for (uint32_t i = 0; i < patch.num_sources; i++) {
+        result << "----------------- Dumping Source Port Config @ index " << i
+               << " ------------ \n";
+        result << dumpPortConfig(patch.sources[i]);
+        result << "----------------- Dumping Source Port for id " << patch.sources[i].id
+               << " ------------ \n";
+        getPortById(patch.sources[i].id, port);
+        result << dumpPort(port);
+    }
+    for (uint32_t i = 0; i < patch.num_sinks; i++) {
+        result << "----------------- Dumping Sink Port Config @ index " << i << " ------------ \n";
+        result << dumpPortConfig(patch.sinks[i]);
+        result << "----------------- Dumping Sink Port for id " << patch.sinks[i].id
+               << " ------------ \n";
+        getPortById(patch.sinks[i].id, port);
+        result << dumpPort(port);
+    }
+    return result.str();
+}
+
+std::string dumpPort(const audio_port_v7& port) {
+    std::ostringstream result;
+    std::string deviceInfo;
+    if (port.type == AUDIO_PORT_TYPE_DEVICE) {
+        if (port.ext.device.type & AUDIO_DEVICE_BIT_IN) {
+            InputDeviceConverter::maskToString(port.ext.device.type, deviceInfo);
+        } else {
+            OutputDeviceConverter::maskToString(port.ext.device.type, deviceInfo);
+        }
+        deviceInfo += std::string(", address = ") + port.ext.device.address;
+    }
+    result << "audio_port_handle_t = " << port.id << ", "
+           << "Role = " << (port.role == AUDIO_PORT_ROLE_SOURCE ? "source" : "sink") << ", "
+           << "Type = " << (port.type == AUDIO_PORT_TYPE_DEVICE ? "device" : "mix") << ", "
+           << "deviceInfo = " << (port.type == AUDIO_PORT_TYPE_DEVICE ? deviceInfo : "") << ", "
+           << "Name = " << port.name << ", "
+           << "num profiles = " << port.num_audio_profiles << ", "
+           << "mix io handle = " << (port.type == AUDIO_PORT_TYPE_DEVICE ? 0 : port.ext.mix.handle)
+           << ", ";
+    for (int i = 0; i < port.num_audio_profiles; i++) {
+        result << "AudioProfile = " << i << " {";
+        result << "format = " << port.audio_profiles[i].format << ", ";
+        result << "samplerates = ";
+        for (int j = 0; j < port.audio_profiles[i].num_sample_rates; j++) {
+            result << port.audio_profiles[i].sample_rates[j] << ", ";
+        }
+        result << "channelmasks = ";
+        for (int j = 0; j < port.audio_profiles[i].num_channel_masks; j++) {
+            result << "0x" << std::hex << port.audio_profiles[i].channel_masks[j] << std::dec
+                   << ", ";
+        }
+        result << "} ";
+    }
+    result << dumpPortConfig(port.active_config);
+    return result.str();
+}
+
+std::string getXmlAttribute(const xmlNode* cur, const char* attribute) {
+    auto charPtr = make_xmlUnique(xmlGetProp(cur, reinterpret_cast<const xmlChar*>(attribute)));
+    if (charPtr == NULL) {
+        return "";
+    }
+    std::string value(reinterpret_cast<const char*>(charPtr.get()));
+    return value;
+}
+
+status_t parse_audio_policy_configuration_xml(std::vector<std::string>& attachedDevices,
+                                              std::vector<MixPort>& mixPorts,
+                                              std::vector<Route>& routes) {
+    std::string path = audio_find_readable_configuration_file("audio_policy_configuration.xml");
+    if (path.length() == 0) return UNKNOWN_ERROR;
+    auto doc = make_xmlUnique(xmlParseFile(path.c_str()));
+    if (doc == nullptr) return UNKNOWN_ERROR;
+    xmlNode* root = xmlDocGetRootElement(doc.get());
+    if (root == nullptr) return UNKNOWN_ERROR;
+    if (xmlXIncludeProcess(doc.get()) < 0) return UNKNOWN_ERROR;
+    mixPorts.clear();
+    if (!xmlStrcmp(root->name, reinterpret_cast<const xmlChar*>("audioPolicyConfiguration"))) {
+        std::string raw{getXmlAttribute(root, "version")};
+        for (auto* child = root->xmlChildrenNode; child != nullptr; child = child->next) {
+            if (!xmlStrcmp(child->name, reinterpret_cast<const xmlChar*>("modules"))) {
+                xmlNode* root = child;
+                for (auto* child = root->xmlChildrenNode; child != nullptr; child = child->next) {
+                    if (!xmlStrcmp(child->name, reinterpret_cast<const xmlChar*>("module"))) {
+                        xmlNode* root = child;
+                        for (auto* child = root->xmlChildrenNode; child != nullptr;
+                             child = child->next) {
+                            if (!xmlStrcmp(child->name,
+                                           reinterpret_cast<const xmlChar*>("mixPorts"))) {
+                                xmlNode* root = child;
+                                for (auto* child = root->xmlChildrenNode; child != nullptr;
+                                     child = child->next) {
+                                    if (!xmlStrcmp(child->name,
+                                                   reinterpret_cast<const xmlChar*>("mixPort"))) {
+                                        MixPort mixPort;
+                                        xmlNode* root = child;
+                                        mixPort.name = getXmlAttribute(root, "name");
+                                        mixPort.role = getXmlAttribute(root, "role");
+                                        mixPort.flags = getXmlAttribute(root, "flags");
+                                        if (mixPort.role == "source") mixPorts.push_back(mixPort);
+                                    }
+                                }
+                            } else if (!xmlStrcmp(child->name, reinterpret_cast<const xmlChar*>(
+                                                                       "attachedDevices"))) {
+                                xmlNode* root = child;
+                                for (auto* child = root->xmlChildrenNode; child != nullptr;
+                                     child = child->next) {
+                                    if (!xmlStrcmp(child->name,
+                                                   reinterpret_cast<const xmlChar*>("item"))) {
+                                        auto xmlValue = make_xmlUnique(xmlNodeListGetString(
+                                                child->doc, child->xmlChildrenNode, 1));
+                                        if (xmlValue == nullptr) {
+                                            raw = "";
+                                        } else {
+                                            raw = reinterpret_cast<const char*>(xmlValue.get());
+                                        }
+                                        std::string& value = raw;
+                                        attachedDevices.push_back(std::move(value));
+                                    }
+                                }
+                            } else if (!xmlStrcmp(child->name,
+                                                  reinterpret_cast<const xmlChar*>("routes"))) {
+                                xmlNode* root = child;
+                                for (auto* child = root->xmlChildrenNode; child != nullptr;
+                                     child = child->next) {
+                                    if (!xmlStrcmp(child->name,
+                                                   reinterpret_cast<const xmlChar*>("route"))) {
+                                        Route route;
+                                        xmlNode* root = child;
+                                        route.name = getXmlAttribute(root, "name");
+                                        route.sources = getXmlAttribute(root, "sources");
+                                        route.sink = getXmlAttribute(root, "sink");
+                                        routes.push_back(route);
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return OK;
+}
diff --git a/media/libaudioclient/tests/audio_test_utils.h b/media/libaudioclient/tests/audio_test_utils.h
new file mode 100644
index 0000000..f35b65d
--- /dev/null
+++ b/media/libaudioclient/tests/audio_test_utils.h
@@ -0,0 +1,205 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#ifndef AUDIO_TEST_UTILS_H_
+#define AUDIO_TEST_UTILS_H_
+
+#include <sys/stat.h>
+#include <unistd.h>
+#include <atomic>
+#include <chrono>
+#include <cinttypes>
+#include <deque>
+#include <memory>
+#include <mutex>
+#include <thread>
+
+#include <binder/MemoryDealer.h>
+#include <libxml/parser.h>
+#include <libxml/xinclude.h>
+#include <media/AidlConversion.h>
+#include <media/AudioRecord.h>
+#include <media/AudioTrack.h>
+
+#define RECORD_TO_FILE 0
+
+using namespace android;
+
+struct MixPort {
+    std::string name;
+    std::string role;
+    std::string flags;
+};
+
+struct Route {
+    std::string name;
+    std::string sources;
+    std::string sink;
+};
+
+status_t parse_audio_policy_configuration_xml(std::vector<std::string>& attachedDevices,
+                                              std::vector<MixPort>& mixPorts,
+                                              std::vector<Route>& routes);
+void CreateRandomFile(int& fd);
+status_t listAudioPorts(std::vector<audio_port_v7>& portsVec);
+status_t listAudioPatches(std::vector<struct audio_patch>& patchesVec);
+status_t getPortByAttributes(audio_port_role_t role, audio_port_type_t type,
+                             audio_devices_t deviceType, audio_port_v7& port);
+status_t getPatchForOutputMix(audio_io_handle_t audioIo, audio_patch& patch);
+status_t getPatchForInputMix(audio_io_handle_t audioIo, audio_patch& patch);
+bool patchContainsOutputDevice(audio_port_handle_t deviceId, audio_patch patch);
+bool patchContainsInputDevice(audio_port_handle_t deviceId, audio_patch patch);
+bool checkPatchPlayback(audio_io_handle_t audioIo, audio_port_handle_t deviceId);
+bool checkPatchCapture(audio_io_handle_t audioIo, audio_port_handle_t deviceId);
+std::string dumpPort(const audio_port_v7& port);
+std::string dumpPortConfig(const audio_port_config& port);
+std::string dumpPatch(const audio_patch& patch);
+
+class OnAudioDeviceUpdateNotifier : public AudioSystem::AudioDeviceCallback {
+  public:
+    audio_io_handle_t mAudioIo = AUDIO_IO_HANDLE_NONE;
+    audio_port_handle_t mDeviceId = AUDIO_PORT_HANDLE_NONE;
+    std::mutex mMutex;
+    std::condition_variable mCondition;
+
+    void onAudioDeviceUpdate(audio_io_handle_t audioIo, audio_port_handle_t deviceId);
+    status_t waitForAudioDeviceCb();
+};
+
+// Simple AudioPlayback class.
+class AudioPlayback : public AudioTrack::IAudioTrackCallback {
+    friend sp<AudioPlayback>;
+    AudioPlayback(uint32_t sampleRate, audio_format_t format, audio_channel_mask_t channelMask,
+                  audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                  audio_session_t sessionId = AUDIO_SESSION_NONE,
+                  AudioTrack::transfer_type transferType = AudioTrack::TRANSFER_SHARED,
+                  audio_attributes_t* attributes = nullptr, audio_offload_info_t* info = nullptr);
+
+  public:
+    status_t loadResource(const char* name);
+    status_t create();
+    sp<AudioTrack> getAudioTrackHandle();
+    status_t start();
+    status_t waitForConsumption(bool testSeek = false);
+    status_t fillBuffer();
+    status_t onProcess(bool testSeek = false);
+    virtual void onBufferEnd() override;
+    void stop();
+
+    bool mStopPlaying;
+    std::mutex mMutex;
+    std::condition_variable mCondition;
+
+    enum State {
+        PLAY_NO_INIT,
+        PLAY_READY,
+        PLAY_STARTED,
+        PLAY_STOPPED,
+    };
+
+  private:
+    ~AudioPlayback();
+    const uint32_t mSampleRate;
+    const audio_format_t mFormat;
+    const audio_channel_mask_t mChannelMask;
+    const audio_output_flags_t mFlags;
+    const audio_session_t mSessionId;
+    const AudioTrack::transfer_type mTransferType;
+    const audio_attributes_t* mAttributes;
+    const audio_offload_info_t* mOffloadInfo;
+
+    size_t mBytesUsedSoFar;
+    State mState;
+    size_t mMemCapacity;
+    sp<MemoryDealer> mMemoryDealer;
+    sp<IMemory> mMemory;
+
+    sp<AudioTrack> mTrack;
+};
+
+// hold pcm data sent by AudioRecord
+class RawBuffer {
+  public:
+    RawBuffer(int64_t ptsPipeline = -1, int64_t ptsManual = -1, int32_t capacity = 0);
+
+    std::unique_ptr<uint8_t[]> mData;
+    int64_t mPtsPipeline;
+    int64_t mPtsManual;
+    int32_t mCapacity;
+};
+
+// Simple AudioCapture
+class AudioCapture : public AudioRecord::IAudioRecordCallback {
+  public:
+    AudioCapture(audio_source_t inputSource, uint32_t sampleRate, audio_format_t format,
+                 audio_channel_mask_t channelMask,
+                 audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
+                 audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
+                 AudioRecord::transfer_type transferType = AudioRecord::TRANSFER_CALLBACK);
+    ~AudioCapture();
+    size_t onMoreData(const AudioRecord::Buffer& buffer) override;
+    void onOverrun() override;
+    void onMarker(uint32_t markerPosition) override;
+    void onNewPos(uint32_t newPos) override;
+    void onNewIAudioRecord() override;
+    status_t create();
+    sp<AudioRecord> getAudioRecordHandle();
+    status_t start(AudioSystem::sync_event_t event = AudioSystem::SYNC_EVENT_NONE,
+                   audio_session_t triggerSession = AUDIO_SESSION_NONE);
+    status_t obtainBufferCb(RawBuffer& buffer);
+    status_t obtainBuffer(RawBuffer& buffer);
+    status_t audioProcess();
+    status_t stop();
+
+    uint32_t mFrameCount;
+    uint32_t mNotificationFrames;
+    int64_t mNumFramesToRecord;
+    int64_t mNumFramesReceived;
+    int64_t mNumFramesLost;
+    uint32_t mMarkerPosition;
+    uint32_t mMarkerPeriod;
+    uint32_t mReceivedCbMarkerAtPosition;
+    uint32_t mReceivedCbMarkerCount;
+    bool mBufferOverrun;
+
+    enum State {
+        REC_NO_INIT,
+        REC_READY,
+        REC_STARTED,
+        REC_STOPPED,
+    };
+
+  private:
+    const audio_source_t mInputSource;
+    const uint32_t mSampleRate;
+    const audio_format_t mFormat;
+    const audio_channel_mask_t mChannelMask;
+    const audio_input_flags_t mFlags;
+    const audio_session_t mSessionId;
+    const AudioRecord::transfer_type mTransferType;
+
+    size_t mMaxBytesPerCallback = 2048;
+    sp<AudioRecord> mRecord;
+    State mState;
+    bool mStopRecording;
+    int mOutFileFd = -1;
+
+    std::mutex mMutex;
+    std::condition_variable mCondition;
+    std::deque<RawBuffer> mBuffersReceived;
+};
+
+#endif  // AUDIO_TEST_UTILS_H_
diff --git a/media/libaudioclient/tests/audioclient_serialization_tests.cpp b/media/libaudioclient/tests/audioclient_serialization_tests.cpp
new file mode 100644
index 0000000..93baefd6
--- /dev/null
+++ b/media/libaudioclient/tests/audioclient_serialization_tests.cpp
@@ -0,0 +1,310 @@
+/*
+ * Copyright (C) 2021 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_NDEBUG 0
+#define LOG_TAG "AudioClientSerializationUnitTests"
+
+#include <cstdint>
+#include <cstdlib>
+#include <ctime>
+
+#include <gtest/gtest.h>
+
+#include <android_audio_policy_configuration_V7_0-enums.h>
+#include <xsdc/XsdcSupport.h>
+
+#include "audio_test_utils.h"
+
+using namespace android;
+namespace xsd {
+using namespace ::android::audio::policy::configuration::V7_0;
+}
+
+template <typename T, typename X, typename FUNC>
+std::vector<T> getFlags(const xsdc_enum_range<X>& range, const FUNC& func,
+                        const std::string& findString = {}) {
+    std::vector<T> vec;
+    for (const auto& xsdEnumVal : range) {
+        T enumVal;
+        std::string enumString = toString(xsdEnumVal);
+        if (enumString.find(findString) != std::string::npos &&
+            func(enumString.c_str(), &enumVal)) {
+            vec.push_back(enumVal);
+        }
+    }
+    return vec;
+}
+
+static const std::vector<audio_usage_t> kUsages =
+        getFlags<audio_usage_t, xsd::AudioUsage, decltype(audio_usage_from_string)>(
+                xsdc_enum_range<xsd::AudioUsage>{}, audio_usage_from_string);
+
+static const std::vector<audio_content_type_t> kContentType =
+        getFlags<audio_content_type_t, xsd::AudioContentType,
+                 decltype(audio_content_type_from_string)>(xsdc_enum_range<xsd::AudioContentType>{},
+                                                           audio_content_type_from_string);
+
+static const std::vector<audio_source_t> kInputSources =
+        getFlags<audio_source_t, xsd::AudioSource, decltype(audio_source_from_string)>(
+                xsdc_enum_range<xsd::AudioSource>{}, audio_source_from_string);
+
+static const std::vector<audio_stream_type_t> kStreamtypes =
+        getFlags<audio_stream_type_t, xsd::AudioStreamType,
+                 decltype(audio_stream_type_from_string)>(xsdc_enum_range<xsd::AudioStreamType>{},
+                                                          audio_stream_type_from_string);
+
+static const std::vector<uint32_t> kMixMatchRules = {
+        RULE_MATCH_ATTRIBUTE_USAGE,
+        RULE_EXCLUDE_ATTRIBUTE_USAGE,
+        RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET,
+        RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET,
+        RULE_MATCH_UID,
+        RULE_EXCLUDE_UID,
+        RULE_MATCH_USERID,
+        RULE_EXCLUDE_USERID,
+};
+
+// Generates a random string.
+std::string CreateRandomString(size_t n) {
+    std::string data =
+            "abcdefghijklmnopqrstuvwxyz"
+            "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+            "0123456789";
+    srand(static_cast<unsigned int>(time(0)));
+    std::string s(n, ' ');
+    for (size_t i = 0; i < n; ++i) {
+        s[i] = data[rand() % data.size()];
+    }
+    return s;
+}
+
+class FillAudioAttributes {
+  public:
+    void fillAudioAttributes(audio_attributes_t& attr);
+
+    unsigned int mSeed;
+};
+
+void FillAudioAttributes::fillAudioAttributes(audio_attributes_t& attr) {
+    attr.content_type = kContentType[rand() % kContentType.size()];
+    attr.usage = kUsages[rand() % kUsages.size()];
+    attr.source = kInputSources[rand() % kInputSources.size()];
+    // attr.flags -> [0, (1 << (CAPTURE_PRIVATE + 1) - 1)]
+    attr.flags = static_cast<audio_flags_mask_t>(rand() & 0x3fff);
+    sprintf(attr.tags, "%s",
+            CreateRandomString((int)rand() % (AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1)).c_str());
+}
+
+class SerializationTest : public FillAudioAttributes, public ::testing::Test {
+    void SetUp() override {
+        mSeed = static_cast<unsigned int>(time(0));
+        srand(mSeed);
+    }
+};
+
+// UNIT TESTS
+TEST_F(SerializationTest, AudioProductStrategyBinderization) {
+    for (int j = 0; j < 512; j++) {
+        const std::string name{"Test APSBinderization for seed::" + std::to_string(mSeed)};
+        std::vector<AudioAttributes> audioattributesvector;
+        for (auto i = 0; i < 16; i++) {
+            audio_attributes_t attributes;
+            fillAudioAttributes(attributes);
+            AudioAttributes audioattributes{static_cast<volume_group_t>(rand()),
+                                            kStreamtypes[rand() % kStreamtypes.size()], attributes};
+            audioattributesvector.push_back(audioattributes);
+        }
+        product_strategy_t psId = static_cast<product_strategy_t>(rand());
+        AudioProductStrategy aps{name, audioattributesvector, psId};
+
+        Parcel p;
+        EXPECT_EQ(NO_ERROR, aps.writeToParcel(&p)) << name;
+
+        AudioProductStrategy apsCopy;
+        p.setDataPosition(0);
+        EXPECT_EQ(NO_ERROR, apsCopy.readFromParcel(&p)) << name;
+        EXPECT_EQ(apsCopy.getName(), name) << name;
+        EXPECT_EQ(apsCopy.getId(), psId) << name;
+        auto avec = apsCopy.getAudioAttributes();
+        EXPECT_EQ(avec.size(), audioattributesvector.size()) << name;
+        for (int i = 0; i < audioattributesvector.size(); i++) {
+            EXPECT_EQ(avec[i].getGroupId(), audioattributesvector[i].getGroupId()) << name;
+            EXPECT_EQ(avec[i].getStreamType(), audioattributesvector[i].getStreamType()) << name;
+            EXPECT_TRUE(avec[i].getAttributes() == audioattributesvector[i].getAttributes())
+                    << name;
+        }
+    }
+}
+
+TEST_F(SerializationTest, AudioVolumeGroupBinderization) {
+    for (int j = 0; j < 512; j++) {
+        const std::string name{"Test AVGBinderization for seed::" + std::to_string(mSeed)};
+        volume_group_t groupId = static_cast<volume_group_t>(rand());
+        std::vector<audio_attributes_t> attributesvector;
+        for (auto i = 0; i < 16; i++) {
+            audio_attributes_t attributes;
+            fillAudioAttributes(attributes);
+            attributesvector.push_back(attributes);
+        }
+        std::vector<audio_stream_type_t> streamsvector;
+        for (auto i = 0; i < 8; i++) {
+            streamsvector.push_back(kStreamtypes[rand() % kStreamtypes.size()]);
+        }
+        AudioVolumeGroup avg{name, groupId, attributesvector, streamsvector};
+
+        Parcel p;
+        EXPECT_EQ(NO_ERROR, avg.writeToParcel(&p));
+
+        AudioVolumeGroup avgCopy;
+        p.setDataPosition(0);
+        EXPECT_EQ(NO_ERROR, avgCopy.readFromParcel(&p)) << name;
+        EXPECT_EQ(avgCopy.getName(), name) << name;
+        EXPECT_EQ(avgCopy.getId(), groupId) << name;
+        auto avec = avgCopy.getAudioAttributes();
+        EXPECT_EQ(avec.size(), attributesvector.size()) << name;
+        for (int i = 0; i < avec.size(); i++) {
+            EXPECT_TRUE(avec[i] == attributesvector[i]) << name;
+        }
+        StreamTypeVector svec = avgCopy.getStreamTypes();
+        EXPECT_EQ(svec.size(), streamsvector.size()) << name;
+        for (int i = 0; i < svec.size(); i++) {
+            EXPECT_EQ(svec[i], streamsvector[i]) << name;
+        }
+    }
+}
+
+TEST_F(SerializationTest, AudioMixBinderization) {
+    for (int j = 0; j < 512; j++) {
+        const std::string msg{"Test AMBinderization for seed::" + std::to_string(mSeed)};
+        Vector<AudioMixMatchCriterion> criteria;
+        for (int i = 0; i < 16; i++) {
+            AudioMixMatchCriterion ammc{kUsages[rand() % kUsages.size()],
+                                        kInputSources[rand() % kInputSources.size()],
+                                        kMixMatchRules[rand() % kMixMatchRules.size()]};
+            criteria.add(ammc);
+        }
+        audio_config_t config{};
+        config.sample_rate = 48000;
+        config.channel_mask = AUDIO_CHANNEL_IN_MONO;
+        config.format = AUDIO_FORMAT_PCM_16_BIT;
+        config.offload_info = AUDIO_INFO_INITIALIZER;
+        config.frame_count = 4800;
+        AudioMix am{criteria,
+                    static_cast<uint32_t>(rand()),
+                    config,
+                    static_cast<uint32_t>(rand()),
+                    String8(msg.c_str()),
+                    static_cast<uint32_t>(rand())};
+
+        Parcel p;
+        EXPECT_EQ(NO_ERROR, am.writeToParcel(&p)) << msg;
+
+        AudioMix amCopy;
+        p.setDataPosition(0);
+        EXPECT_EQ(NO_ERROR, amCopy.readFromParcel(&p)) << msg;
+        EXPECT_EQ(amCopy.mMixType, am.mMixType) << msg;
+        EXPECT_EQ(amCopy.mFormat.sample_rate, am.mFormat.sample_rate) << msg;
+        EXPECT_EQ(amCopy.mFormat.channel_mask, am.mFormat.channel_mask) << msg;
+        EXPECT_EQ(amCopy.mFormat.format, am.mFormat.format) << msg;
+        EXPECT_EQ(amCopy.mRouteFlags, am.mRouteFlags) << msg;
+        EXPECT_EQ(amCopy.mDeviceAddress, am.mDeviceAddress) << msg;
+        EXPECT_EQ(amCopy.mCbFlags, am.mCbFlags) << msg;
+        EXPECT_EQ(amCopy.mCriteria.size(), am.mCriteria.size()) << msg;
+        for (auto i = 0; i < amCopy.mCriteria.size(); i++) {
+            EXPECT_EQ(amCopy.mCriteria[i].mRule, am.mCriteria[i].mRule) << msg;
+            EXPECT_EQ(amCopy.mCriteria[i].mValue.mUserId, am.mCriteria[i].mValue.mUserId) << msg;
+        }
+    }
+}
+
+using MMCTestParams = std::tuple<audio_usage_t, audio_source_t, uint32_t>;
+
+class MMCParameterizedTest : public FillAudioAttributes,
+                             public ::testing::TestWithParam<MMCTestParams> {
+  public:
+    MMCParameterizedTest()
+        : mAudioUsage(std::get<0>(GetParam())),
+          mAudioSource(std::get<1>(GetParam())),
+          mAudioMixMatchRules(std::get<2>(GetParam())){};
+
+    const audio_usage_t mAudioUsage;
+    const audio_source_t mAudioSource;
+    const uint32_t mAudioMixMatchRules;
+
+    void SetUp() override {
+        mSeed = static_cast<unsigned int>(time(0));
+        srand(mSeed);
+    }
+};
+
+TEST_P(MMCParameterizedTest, AudioMixMatchCriterionBinderization) {
+    const std::string msg{"Test AMMCBinderization for seed::" + std::to_string(mSeed)};
+    AudioMixMatchCriterion ammc{mAudioUsage, mAudioSource, mAudioMixMatchRules};
+
+    Parcel p;
+    EXPECT_EQ(NO_ERROR, ammc.writeToParcel(&p)) << msg;
+
+    AudioMixMatchCriterion ammcCopy;
+    p.setDataPosition(0);
+    EXPECT_EQ(NO_ERROR, ammcCopy.readFromParcel(&p)) << msg;
+    EXPECT_EQ(ammcCopy.mRule, ammc.mRule) << msg;
+    EXPECT_EQ(ammcCopy.mValue.mUserId, ammc.mValue.mUserId) << msg;
+}
+
+// audioUsage, audioSource, audioMixMatchRules
+INSTANTIATE_TEST_SUITE_P(SerializationParameterizedTests, MMCParameterizedTest,
+                         ::testing::Combine(testing::ValuesIn(kUsages),
+                                            testing::ValuesIn(kInputSources),
+                                            testing::ValuesIn(kMixMatchRules)));
+
+using AudioAttributesTestParams = std::tuple<audio_stream_type_t>;
+
+class AudioAttributesParameterizedTest
+    : public FillAudioAttributes,
+      public ::testing::TestWithParam<AudioAttributesTestParams> {
+  public:
+    AudioAttributesParameterizedTest() : mAudioStream(std::get<0>(GetParam())){};
+
+    const audio_stream_type_t mAudioStream;
+
+    void SetUp() override {
+        mSeed = static_cast<unsigned int>(time(0));
+        srand(mSeed);
+    }
+};
+
+TEST_P(AudioAttributesParameterizedTest, AudioAttributesBinderization) {
+    const std::string msg{"Test AABinderization for seed::" + std::to_string(mSeed)};
+    volume_group_t groupId = static_cast<volume_group_t>(rand());
+    audio_stream_type_t stream = mAudioStream;
+    audio_attributes_t attributes;
+    fillAudioAttributes(attributes);
+    AudioAttributes audioattributes{groupId, stream, attributes};
+
+    Parcel p;
+    EXPECT_EQ(NO_ERROR, audioattributes.writeToParcel(&p)) << msg;
+
+    AudioAttributes audioattributesCopy;
+    p.setDataPosition(0);
+    EXPECT_EQ(NO_ERROR, audioattributesCopy.readFromParcel(&p)) << msg;
+    EXPECT_EQ(audioattributesCopy.getGroupId(), audioattributes.getGroupId()) << msg;
+    EXPECT_EQ(audioattributesCopy.getStreamType(), audioattributes.getStreamType()) << msg;
+    EXPECT_TRUE(audioattributesCopy.getAttributes() == attributes) << msg;
+}
+
+// audioStream
+INSTANTIATE_TEST_SUITE_P(SerializationParameterizedTests, AudioAttributesParameterizedTest,
+                         ::testing::Combine(testing::ValuesIn(kStreamtypes)));
diff --git a/media/libaudioclient/tests/audioeffect_tests.cpp b/media/libaudioclient/tests/audioeffect_tests.cpp
new file mode 100644
index 0000000..e6149e4
--- /dev/null
+++ b/media/libaudioclient/tests/audioeffect_tests.cpp
@@ -0,0 +1,559 @@
+/*
+ * Copyright (C) 2021 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_NDEBUG 0
+#define LOG_TAG "AudioEffectUnitTests"
+
+#include <gtest/gtest.h>
+#include <media/AudioEffect.h>
+#include <system/audio_effects/effect_hapticgenerator.h>
+#include <system/audio_effects/effect_spatializer.h>
+#include <system/audio_effects/effect_visualizer.h>
+
+#include "audio_test_utils.h"
+
+using namespace android;
+
+class AudioEffectCallback : public AudioEffect::IAudioEffectCallback {
+  public:
+    bool receivedFramesProcessed = false;
+
+    void onFramesProcessed(int32_t framesProcessed) override {
+        ALOGE("number of frames processed %d", framesProcessed);
+        receivedFramesProcessed = true;
+    }
+};
+
+static constexpr int kDefaultInputEffectPriority = -1;
+static constexpr int kDefaultOutputEffectPriority = 0;
+
+static const char* gPackageName = "AudioEffectTest";
+
+bool doesDeviceSupportLowLatencyMode(std::vector<struct audio_port_v7>& ports) {
+    for (const auto& port : ports) {
+        if (port.role == AUDIO_PORT_ROLE_SOURCE && port.type == AUDIO_PORT_TYPE_MIX) {
+            if ((port.active_config.flags.output & AUDIO_OUTPUT_FLAG_FAST) != 0) {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+sp<AudioEffect> createEffect(const effect_uuid_t* type, const effect_uuid_t* uuid = nullptr,
+                             int priority = 0, audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
+                             const wp<AudioEffectCallback>& callback = nullptr) {
+    std::string packageName{gPackageName};
+    AttributionSourceState attributionSource;
+    attributionSource.packageName = packageName;
+    attributionSource.uid = VALUE_OR_FATAL(legacy2aidl_uid_t_int32_t(getuid()));
+    attributionSource.pid = VALUE_OR_FATAL(legacy2aidl_pid_t_int32_t(getpid()));
+    attributionSource.token = sp<BBinder>::make();
+    sp<AudioEffect> effect = new AudioEffect(attributionSource);
+    effect->set(type, uuid, priority, callback, sessionId, AUDIO_IO_HANDLE_NONE, {}, false,
+                (callback != nullptr));
+    return effect;
+}
+
+status_t isEffectExistsOnAudioSession(const effect_uuid_t* type, const effect_uuid_t* uuid,
+                                      int priority, audio_session_t sessionId) {
+    sp<AudioEffect> effect = createEffect(type, uuid, priority, sessionId);
+    return effect->initCheck();
+}
+
+bool isEffectDefaultOnRecord(const effect_uuid_t* type, const effect_uuid_t* uuid,
+                             const sp<AudioRecord>& audioRecord) {
+    effect_descriptor_t descriptors[AudioEffect::kMaxPreProcessing];
+    uint32_t numEffects = AudioEffect::kMaxPreProcessing;
+    status_t ret = AudioEffect::queryDefaultPreProcessing(audioRecord->getSessionId(), descriptors,
+                                                          &numEffects);
+    if (ret != OK) {
+        return false;
+    }
+    for (int i = 0; i < numEffects; i++) {
+        if ((memcmp(&descriptors[i].type, type, sizeof(effect_uuid_t)) == 0) &&
+            (memcmp(&descriptors[i].uuid, uuid, sizeof(effect_uuid_t)) == 0)) {
+            return true;
+        }
+    }
+    return false;
+}
+
+void listEffectsAvailable(std::vector<effect_descriptor_t>& descriptors) {
+    uint32_t numEffects = 0;
+    ASSERT_EQ(NO_ERROR, AudioEffect::queryNumberEffects(&numEffects));
+    for (auto i = 0; i < numEffects; i++) {
+        effect_descriptor_t des;
+        ASSERT_EQ(NO_ERROR, AudioEffect::queryEffect(i, &des));
+        descriptors.push_back(des);
+    }
+}
+
+bool isPreprocessing(effect_descriptor_t& descriptor) {
+    return ((descriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC);
+}
+
+bool isInsert(effect_descriptor_t& descriptor) {
+    return ((descriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_INSERT);
+}
+
+bool isAux(effect_descriptor_t& descriptor) {
+    return ((descriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY);
+}
+
+bool isPostproc(effect_descriptor_t& descriptor) {
+    return ((descriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC);
+}
+
+bool isFastCompatible(effect_descriptor_t& descriptor) {
+    return !(((descriptor.flags & EFFECT_FLAG_HW_ACC_MASK) == 0) &&
+             ((descriptor.flags & EFFECT_FLAG_NO_PROCESS) == 0));
+}
+
+bool isSpatializer(effect_descriptor_t& descriptor) {
+    return (memcmp(&descriptor.type, FX_IID_SPATIALIZER, sizeof(effect_uuid_t)) == 0);
+}
+
+bool isHapticGenerator(effect_descriptor_t& descriptor) {
+    return (memcmp(&descriptor.type, FX_IID_HAPTICGENERATOR, sizeof(effect_uuid_t)) == 0);
+}
+
+std::tuple<std::string, std::string> typeAndUuidToString(const effect_descriptor_t& desc) {
+    char type[512];
+    AudioEffect::guidToString(&desc.type, type, sizeof(type));
+    char uuid[512];
+    AudioEffect::guidToString(&desc.uuid, uuid, sizeof(uuid));
+    return std::make_tuple(type, uuid);
+}
+
+// UNIT TESTS
+TEST(AudioEffectTest, getEffectDescriptor) {
+    effect_uuid_t randomType = {
+            0x81781c08, 0x93dd, 0x11ec, 0xb909, {0x02, 0x42, 0xac, 0x12, 0x00, 0x02}};
+    effect_uuid_t randomUuid = {
+            0x653730e1, 0x1be1, 0x438e, 0xa35a, {0xfc, 0x9b, 0xa1, 0x2a, 0x5e, 0xc9}};
+    effect_uuid_t empty = EFFECT_UUID_INITIALIZER;
+
+    effect_descriptor_t descriptor;
+    EXPECT_EQ(NAME_NOT_FOUND, AudioEffect::getEffectDescriptor(&randomUuid, &randomType,
+                                                               EFFECT_FLAG_TYPE_MASK, &descriptor));
+
+    std::vector<effect_descriptor_t> descriptors;
+    ASSERT_NO_FATAL_FAILURE(listEffectsAvailable(descriptors));
+
+    for (auto i = 0; i < descriptors.size(); i++) {
+        EXPECT_EQ(NO_ERROR,
+                  AudioEffect::getEffectDescriptor(&descriptors[i].uuid, &descriptors[i].type,
+                                                   EFFECT_FLAG_TYPE_MASK, &descriptor));
+        EXPECT_EQ(0, memcmp(&descriptor, &descriptors[i], sizeof(effect_uuid_t)));
+    }
+    // negative tests
+    if (descriptors.size() > 0) {
+        EXPECT_EQ(BAD_VALUE,
+                  AudioEffect::getEffectDescriptor(&descriptors[0].uuid, &descriptors[0].type,
+                                                   EFFECT_FLAG_TYPE_MASK, nullptr));
+    }
+    EXPECT_EQ(BAD_VALUE, AudioEffect::getEffectDescriptor(nullptr, nullptr,
+                                                          EFFECT_FLAG_TYPE_PRE_PROC, &descriptor));
+    EXPECT_EQ(BAD_VALUE, AudioEffect::getEffectDescriptor(&empty, &randomType,
+                                                          EFFECT_FLAG_TYPE_MASK, nullptr));
+    EXPECT_EQ(BAD_VALUE, AudioEffect::getEffectDescriptor(nullptr, &randomType,
+                                                          EFFECT_FLAG_TYPE_POST_PROC, &descriptor));
+    EXPECT_EQ(BAD_VALUE, AudioEffect::getEffectDescriptor(&randomUuid, nullptr,
+                                                          EFFECT_FLAG_TYPE_INSERT, &descriptor));
+}
+
+TEST(AudioEffectTest, DISABLED_GetSetParameterForEffect) {
+    sp<AudioEffect> visualizer = createEffect(SL_IID_VISUALIZATION);
+    status_t status = visualizer->initCheck();
+    ASSERT_TRUE(status == NO_ERROR || status == ALREADY_EXISTS) << "Init check error";
+    ASSERT_EQ(NO_ERROR, visualizer->setEnabled(true)) << "visualizer not enabled";
+
+    uint32_t buf32[3][sizeof(effect_param_t) / sizeof(uint32_t) + 2];
+    effect_param_t* vis_none = (effect_param_t*)(buf32[0]);
+    effect_param_t* vis_rms = (effect_param_t*)(buf32[1]);
+    effect_param_t* vis_tmp = (effect_param_t*)(buf32[2]);
+
+    // Visualizer::setMeasurementMode()
+    vis_none->psize = sizeof(uint32_t);
+    vis_none->vsize = sizeof(uint32_t);
+    *(int32_t*)vis_none->data = VISUALIZER_PARAM_MEASUREMENT_MODE;
+    *((int32_t*)vis_none->data + 1) = MEASUREMENT_MODE_NONE;
+    EXPECT_EQ(NO_ERROR, visualizer->setParameter(vis_none))
+            << "setMeasurementMode doesn't report success";
+
+    // Visualizer::getMeasurementMode()
+    vis_tmp->psize = sizeof(uint32_t);
+    vis_tmp->vsize = sizeof(uint32_t);
+    *(int32_t*)vis_tmp->data = VISUALIZER_PARAM_MEASUREMENT_MODE;
+    *((int32_t*)vis_tmp->data + 1) = 23;
+    EXPECT_EQ(NO_ERROR, visualizer->getParameter(vis_tmp))
+            << "getMeasurementMode doesn't report success";
+    EXPECT_EQ(*((int32_t*)vis_tmp->data + 1), *((int32_t*)vis_none->data + 1))
+            << "target mode does not match set mode";
+
+    // Visualizer::setMeasurementModeDeferred()
+    vis_rms->psize = sizeof(uint32_t);
+    vis_rms->vsize = sizeof(uint32_t);
+    *(int32_t*)vis_rms->data = VISUALIZER_PARAM_MEASUREMENT_MODE;
+    *((int32_t*)vis_rms->data + 1) = MEASUREMENT_MODE_PEAK_RMS;
+    EXPECT_EQ(NO_ERROR, visualizer->setParameterDeferred(vis_rms))
+            << "setMeasurementModeDeferred doesn't report success";
+
+    *((int32_t*)vis_tmp->data + 1) = 23;
+    EXPECT_EQ(NO_ERROR, visualizer->getParameter(vis_tmp))
+            << "getMeasurementMode doesn't report success";
+    EXPECT_EQ(*((int32_t*)vis_tmp->data + 1), *((int32_t*)vis_none->data + 1))
+            << "target mode does not match set mode";
+
+    // setParameterCommit
+    EXPECT_EQ(NO_ERROR, visualizer->setParameterCommit())
+            << "setMeasurementModeCommit does not report success";
+
+    // validate Params
+    *((int32_t*)vis_tmp->data + 1) = 23;
+    EXPECT_EQ(NO_ERROR, visualizer->getParameter(vis_tmp))
+            << "getMeasurementMode doesn't report success";
+    EXPECT_EQ(*((int32_t*)vis_tmp->data + 1), *((int32_t*)vis_rms->data + 1))
+            << "target mode does not match set mode";
+}
+
+TEST(AudioEffectTest, ManageSourceDefaultEffects) {
+    int32_t selectedEffect = -1;
+
+    const uint32_t sampleRate = 44100;
+    const audio_format_t format = AUDIO_FORMAT_PCM_16_BIT;
+    const audio_channel_mask_t channelMask = AUDIO_CHANNEL_IN_STEREO;
+    sp<AudioCapture> capture = nullptr;
+
+    std::vector<effect_descriptor_t> descriptors;
+    ASSERT_NO_FATAL_FAILURE(listEffectsAvailable(descriptors));
+    for (auto i = 0; i < descriptors.size(); i++) {
+        if (isPreprocessing(descriptors[i])) {
+            capture = new AudioCapture(AUDIO_SOURCE_MIC, sampleRate, format, channelMask);
+            ASSERT_NE(capture, nullptr) << "Unable to create Record Application";
+            EXPECT_EQ(NO_ERROR, capture->create());
+            EXPECT_EQ(NO_ERROR, capture->start());
+            if (!isEffectDefaultOnRecord(&descriptors[i].type, &descriptors[i].uuid,
+                                         capture->getAudioRecordHandle())) {
+                selectedEffect = i;
+                break;
+            }
+        }
+    }
+    if (selectedEffect == -1) GTEST_SKIP() << " expected at least one preprocessing effect";
+
+    effect_uuid_t* selectedEffectType = &descriptors[selectedEffect].type;
+    effect_uuid_t* selectedEffectUuid = &descriptors[selectedEffect].uuid;
+    auto [type, uuid] = typeAndUuidToString(descriptors[selectedEffect]);
+    capture = new AudioCapture(AUDIO_SOURCE_MIC, sampleRate, format, channelMask);
+    ASSERT_NE(capture, nullptr) << "Unable to create Record Application";
+    EXPECT_EQ(NO_ERROR, capture->create());
+    EXPECT_EQ(NO_ERROR, capture->start());
+    EXPECT_FALSE(isEffectDefaultOnRecord(selectedEffectType, selectedEffectUuid,
+                                         capture->getAudioRecordHandle()))
+            << "Effect should not have been default on record. " << type;
+    EXPECT_EQ(NO_ERROR,
+              isEffectExistsOnAudioSession(selectedEffectType, selectedEffectUuid,
+                                           kDefaultInputEffectPriority - 1,
+                                           capture->getAudioRecordHandle()->getSessionId()))
+            << "Effect should not have been added. " << type;
+    EXPECT_EQ(OK, capture->audioProcess());
+    EXPECT_EQ(OK, capture->stop());
+
+    String16 name{gPackageName};
+    audio_unique_id_t effectId;
+    status_t status = AudioEffect::addSourceDefaultEffect(type.c_str(), name, uuid.c_str(),
+                                                          kDefaultInputEffectPriority,
+                                                          AUDIO_SOURCE_MIC, &effectId);
+    EXPECT_EQ(NO_ERROR, status) << "Adding default effect failed: " << type;
+
+    capture = new AudioCapture(AUDIO_SOURCE_MIC, sampleRate, format, channelMask);
+    ASSERT_NE(capture, nullptr) << "Unable to create Record Application";
+    EXPECT_EQ(NO_ERROR, capture->create());
+    EXPECT_EQ(NO_ERROR, capture->start());
+    EXPECT_TRUE(isEffectDefaultOnRecord(selectedEffectType, selectedEffectUuid,
+                                        capture->getAudioRecordHandle()))
+            << "Effect should have been default on record. " << type;
+    EXPECT_EQ(ALREADY_EXISTS,
+              isEffectExistsOnAudioSession(selectedEffectType, selectedEffectUuid,
+                                           kDefaultInputEffectPriority - 1,
+                                           capture->getAudioRecordHandle()->getSessionId()))
+            << "Effect should have been added. " << type;
+    EXPECT_EQ(OK, capture->audioProcess());
+    EXPECT_EQ(OK, capture->stop());
+
+    status = AudioEffect::removeSourceDefaultEffect(effectId);
+    EXPECT_EQ(NO_ERROR, status);
+    capture = new AudioCapture(AUDIO_SOURCE_MIC, sampleRate, format, channelMask);
+    ASSERT_NE(capture, nullptr) << "Unable to create Record Application";
+    EXPECT_EQ(NO_ERROR, capture->create());
+    EXPECT_EQ(NO_ERROR, capture->start());
+    EXPECT_FALSE(isEffectDefaultOnRecord(selectedEffectType, selectedEffectUuid,
+                                         capture->getAudioRecordHandle()))
+            << "Effect should not have been default on record. " << type;
+    EXPECT_EQ(NO_ERROR,
+              isEffectExistsOnAudioSession(selectedEffectType, selectedEffectUuid,
+                                           kDefaultInputEffectPriority - 1,
+                                           capture->getAudioRecordHandle()->getSessionId()))
+            << "Effect should not have been added. " << type;
+    EXPECT_EQ(OK, capture->audioProcess());
+    EXPECT_EQ(OK, capture->stop());
+}
+
+TEST(AudioEffectTest, AuxEffectSanityTest) {
+    int32_t selectedEffect = -1;
+    std::vector<effect_descriptor_t> descriptors;
+    ASSERT_NO_FATAL_FAILURE(listEffectsAvailable(descriptors));
+    for (auto i = 0; i < descriptors.size(); i++) {
+        if (isAux(descriptors[i])) {
+            selectedEffect = i;
+            break;
+        }
+    }
+    if (selectedEffect == -1) GTEST_SKIP() << "expected at least one aux effect";
+    effect_uuid_t* selectedEffectType = &descriptors[selectedEffect].type;
+    effect_uuid_t* selectedEffectUuid = &descriptors[selectedEffect].uuid;
+    auto [type, uuid] = typeAndUuidToString(descriptors[selectedEffect]);
+    String16 name{gPackageName};
+    audio_session_t sessionId =
+            (audio_session_t)AudioSystem::newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+    sp<AudioEffect> audioEffect = createEffect(selectedEffectType, selectedEffectUuid,
+                                               kDefaultInputEffectPriority, sessionId);
+    EXPECT_EQ(NO_INIT, audioEffect->initCheck())
+            << "error, creating auxiliary effect (" << type << ") on session id " << (int)sessionId
+            << " successful ";
+    audio_unique_id_t id;
+    status_t status = AudioEffect::addStreamDefaultEffect(
+            type.c_str(), name, uuid.c_str(), kDefaultOutputEffectPriority, AUDIO_USAGE_MEDIA, &id);
+    if (status == NO_ERROR) {
+        EXPECT_EQ(NO_ERROR, AudioEffect::removeStreamDefaultEffect(id));
+        EXPECT_NE(NO_ERROR, status) << "error, adding auxiliary effect (" << type
+                                    << ") as stream default effect is successful";
+    }
+}
+
+class AudioPlaybackEffectTest : public ::testing::TestWithParam<bool> {
+  public:
+    AudioPlaybackEffectTest() : mSelectFastMode(GetParam()){};
+
+    const bool mSelectFastMode;
+
+    bool mIsFastCompatibleEffect;
+    effect_uuid_t mType;
+    effect_uuid_t mUuid;
+    std::string mTypeStr;
+    std::string mUuidStr;
+
+    void SetUp() override {
+        if (mSelectFastMode) {
+            std::vector<struct audio_port_v7> ports;
+            ASSERT_EQ(OK, listAudioPorts(ports));
+            if (!doesDeviceSupportLowLatencyMode(ports)) {
+                GTEST_SKIP() << "device does not support low latency mode";
+            }
+        }
+
+        int32_t selectedEffect = -1;
+        std::vector<effect_descriptor_t> descriptors;
+        ASSERT_NO_FATAL_FAILURE(listEffectsAvailable(descriptors));
+        for (auto i = 0; i < descriptors.size(); i++) {
+            if (isSpatializer(descriptors[i])) continue;
+            if (isHapticGenerator(descriptors[i]) && !AudioSystem::isHapticPlaybackSupported())
+                continue;
+            if (!isInsert(descriptors[i])) continue;
+            selectedEffect = i;
+            mIsFastCompatibleEffect = isFastCompatible(descriptors[i]);
+            // in fast mode, pick fast compatible effect if available
+            if (mSelectFastMode == mIsFastCompatibleEffect) break;
+        }
+        if (selectedEffect == -1) {
+            GTEST_SKIP() << "expected at least one valid effect";
+        }
+
+        mType = descriptors[selectedEffect].type;
+        mUuid = descriptors[selectedEffect].uuid;
+        std::tie(mTypeStr, mUuidStr) = typeAndUuidToString(descriptors[selectedEffect]);
+    }
+};
+
+TEST_P(AudioPlaybackEffectTest, StreamDefaultEffectTest) {
+    SCOPED_TRACE(testing::Message()
+                 << "\n selected effect type is :: " << mTypeStr
+                 << "\n selected effect uuid is :: " << mUuidStr
+                 << "\n audiotrack output flag : " << (mSelectFastMode ? "fast" : "default")
+                 << "\n audio effect is fast compatible : "
+                 << (mIsFastCompatibleEffect ? "yes" : "no"));
+
+    bool compatCheck = !mSelectFastMode || (mSelectFastMode && mIsFastCompatibleEffect);
+
+    // create track
+    audio_attributes_t attributes;
+    attributes.usage = AUDIO_USAGE_MEDIA;
+    attributes.content_type = AUDIO_CONTENT_TYPE_MUSIC;
+    auto playback = sp<AudioPlayback>::make(
+            0 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
+            mSelectFastMode ? AUDIO_OUTPUT_FLAG_FAST : AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE,
+            AudioTrack::TRANSFER_SHARED, &attributes);
+    ASSERT_NE(nullptr, playback);
+    ASSERT_EQ(NO_ERROR, playback->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"));
+    EXPECT_EQ(NO_ERROR, playback->create());
+    EXPECT_EQ(NO_ERROR, playback->start());
+    EXPECT_EQ(compatCheck ? NO_ERROR : NO_INIT,
+              isEffectExistsOnAudioSession(&mType, &mUuid, kDefaultOutputEffectPriority - 1,
+                                           playback->getAudioTrackHandle()->getSessionId()))
+            << "Effect should not have been added. " << mTypeStr;
+    EXPECT_EQ(NO_ERROR, playback->waitForConsumption());
+    playback->stop();
+    playback.clear();
+
+    String16 name{gPackageName};
+    audio_unique_id_t id;
+    status_t status = AudioEffect::addStreamDefaultEffect(mTypeStr.c_str(), name, mUuidStr.c_str(),
+                                                          kDefaultOutputEffectPriority,
+                                                          AUDIO_USAGE_MEDIA, &id);
+    EXPECT_EQ(NO_ERROR, status) << "Adding default effect failed: " << mTypeStr;
+
+    playback = sp<AudioPlayback>::make(
+            0 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
+            mSelectFastMode ? AUDIO_OUTPUT_FLAG_FAST : AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE,
+            AudioTrack::TRANSFER_SHARED, &attributes);
+    ASSERT_NE(nullptr, playback);
+    ASSERT_EQ(NO_ERROR, playback->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"));
+    EXPECT_EQ(NO_ERROR, playback->create());
+    EXPECT_EQ(NO_ERROR, playback->start());
+    // If effect chosen is not compatible with the session, then effect won't be applied
+    EXPECT_EQ(compatCheck ? ALREADY_EXISTS : NO_INIT,
+              isEffectExistsOnAudioSession(&mType, &mUuid, kDefaultOutputEffectPriority - 1,
+                                           playback->getAudioTrackHandle()->getSessionId()))
+            << "Effect should have been added. " << mTypeStr;
+    EXPECT_EQ(NO_ERROR, playback->waitForConsumption());
+    if (mSelectFastMode) {
+        EXPECT_EQ(AUDIO_OUTPUT_FLAG_FAST,
+                  playback->getAudioTrackHandle()->getFlags() & AUDIO_OUTPUT_FLAG_FAST);
+    }
+    playback->stop();
+    playback.clear();
+
+    status = AudioEffect::removeStreamDefaultEffect(id);
+    EXPECT_EQ(NO_ERROR, status);
+    playback = sp<AudioPlayback>::make(
+            0 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
+            mSelectFastMode ? AUDIO_OUTPUT_FLAG_FAST : AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE,
+            AudioTrack::TRANSFER_SHARED, &attributes);
+    ASSERT_NE(nullptr, playback);
+    ASSERT_EQ(NO_ERROR, playback->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"));
+    EXPECT_EQ(NO_ERROR, playback->create());
+    EXPECT_EQ(NO_ERROR, playback->start());
+    EXPECT_EQ(compatCheck ? NO_ERROR : NO_INIT,
+              isEffectExistsOnAudioSession(&mType, &mUuid, kDefaultOutputEffectPriority - 1,
+                                           playback->getAudioTrackHandle()->getSessionId()))
+            << "Effect should not have been added. " << mTypeStr;
+    EXPECT_EQ(NO_ERROR, playback->waitForConsumption());
+    playback->stop();
+    playback.clear();
+}
+
+TEST_P(AudioPlaybackEffectTest, CheckOutputFlagCompatibility) {
+    SCOPED_TRACE(testing::Message()
+                 << "\n selected effect type is :: " << mTypeStr
+                 << "\n selected effect uuid is :: " << mUuidStr
+                 << "\n audiotrack output flag : " << (mSelectFastMode ? "fast" : "default")
+                 << "\n audio effect is fast compatible : "
+                 << (mIsFastCompatibleEffect ? "yes" : "no"));
+
+    audio_attributes_t attributes;
+    attributes.usage = AUDIO_USAGE_MEDIA;
+    attributes.content_type = AUDIO_CONTENT_TYPE_MUSIC;
+    audio_session_t sessionId =
+            (audio_session_t)AudioSystem::newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+    sp<AudioEffectCallback> cb = sp<AudioEffectCallback>::make();
+    sp<AudioEffect> audioEffect =
+            createEffect(&mType, &mUuid, kDefaultOutputEffectPriority, sessionId, cb);
+    ASSERT_EQ(OK, audioEffect->initCheck());
+    ASSERT_EQ(NO_ERROR, audioEffect->setEnabled(true));
+    auto playback = sp<AudioPlayback>::make(
+            0 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_MONO,
+            mSelectFastMode ? AUDIO_OUTPUT_FLAG_FAST : AUDIO_OUTPUT_FLAG_NONE, sessionId,
+            AudioTrack::TRANSFER_SHARED, &attributes);
+    ASSERT_NE(nullptr, playback);
+    ASSERT_EQ(NO_ERROR, playback->loadResource("/data/local/tmp/bbb_1ch_8kHz_s16le.raw"));
+    EXPECT_EQ(NO_ERROR, playback->create());
+    EXPECT_EQ(NO_ERROR, playback->start());
+
+    EXPECT_EQ(ALREADY_EXISTS, isEffectExistsOnAudioSession(
+                                      &mType, &mUuid, kDefaultOutputEffectPriority - 1, sessionId))
+            << "Effect should have been added. " << mTypeStr;
+    if (mSelectFastMode) {
+        EXPECT_EQ(mIsFastCompatibleEffect ? AUDIO_OUTPUT_FLAG_FAST : 0,
+                  playback->getAudioTrackHandle()->getFlags() & AUDIO_OUTPUT_FLAG_FAST);
+    }
+    EXPECT_EQ(NO_ERROR, playback->waitForConsumption());
+    EXPECT_EQ(NO_ERROR, playback->getAudioTrackHandle()->attachAuxEffect(0));
+    playback->stop();
+    playback.clear();
+    EXPECT_TRUE(cb->receivedFramesProcessed)
+            << "AudioEffect frames processed callback not received";
+}
+
+INSTANTIATE_TEST_SUITE_P(EffectParameterizedTests, AudioPlaybackEffectTest, ::testing::Bool());
+
+TEST(AudioEffectTest, TestHapticEffect) {
+    if (!AudioSystem::isHapticPlaybackSupported())
+        GTEST_SKIP() << "Haptic playback is not supported";
+    int32_t selectedEffect = -1;
+    std::vector<effect_descriptor_t> descriptors;
+    ASSERT_NO_FATAL_FAILURE(listEffectsAvailable(descriptors));
+    for (auto i = 0; i < descriptors.size(); i++) {
+        if (!isHapticGenerator(descriptors[i])) continue;
+        selectedEffect = i;
+        break;
+    }
+    if (selectedEffect == -1) GTEST_SKIP() << "expected at least one valid effect";
+
+    effect_uuid_t* selectedEffectType = &descriptors[selectedEffect].type;
+    effect_uuid_t* selectedEffectUuid = &descriptors[selectedEffect].uuid;
+    auto [type, uuid] = typeAndUuidToString(descriptors[selectedEffect]);
+
+    SCOPED_TRACE(testing::Message() << "\n selected effect type is :: " << type
+                                    << "\n selected effect uuid is :: " << uuid);
+
+    audio_attributes_t attributes;
+    attributes.usage = AUDIO_USAGE_MEDIA;
+    attributes.content_type = AUDIO_CONTENT_TYPE_MUSIC;
+    audio_session_t sessionId =
+            (audio_session_t)AudioSystem::newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+    sp<AudioEffectCallback> cb = sp<AudioEffectCallback>::make();
+    sp<AudioEffect> audioEffect = createEffect(selectedEffectType, selectedEffectUuid,
+                                               kDefaultOutputEffectPriority, sessionId, cb);
+    ASSERT_EQ(OK, audioEffect->initCheck());
+    ASSERT_EQ(NO_ERROR, audioEffect->setEnabled(true));
+    auto playback = sp<AudioPlayback>::make(0 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT,
+                                            AUDIO_CHANNEL_OUT_STEREO, AUDIO_OUTPUT_FLAG_NONE,
+                                            sessionId, AudioTrack::TRANSFER_SHARED, &attributes);
+    ASSERT_NE(nullptr, playback);
+    ASSERT_EQ(NO_ERROR, playback->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"));
+    EXPECT_EQ(NO_ERROR, playback->create());
+    EXPECT_EQ(NO_ERROR, playback->start());
+    EXPECT_TRUE(isEffectExistsOnAudioSession(selectedEffectType, selectedEffectUuid,
+                                             kDefaultOutputEffectPriority - 1, sessionId))
+            << "Effect should have been added. " << type;
+    EXPECT_EQ(NO_ERROR, playback->waitForConsumption());
+    playback->stop();
+    playback.clear();
+    EXPECT_TRUE(cb->receivedFramesProcessed)
+            << "AudioEffect frames processed callback not received";
+}
diff --git a/media/libaudioclient/tests/audiorecord_tests.cpp b/media/libaudioclient/tests/audiorecord_tests.cpp
new file mode 100644
index 0000000..8c63a6d
--- /dev/null
+++ b/media/libaudioclient/tests/audiorecord_tests.cpp
@@ -0,0 +1,235 @@
+/*
+ * Copyright (C) 2021 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_NDEBUG 0
+#define LOG_TAG "AudioRecordTest"
+
+#include <gtest/gtest.h>
+
+#include "audio_test_utils.h"
+
+using namespace android;
+
+class AudioRecordTest : public ::testing::Test {
+  public:
+    virtual void SetUp() override {
+        mAC = new AudioCapture(AUDIO_SOURCE_DEFAULT, 44100, AUDIO_FORMAT_PCM_16_BIT,
+                               AUDIO_CHANNEL_IN_FRONT);
+        ASSERT_NE(nullptr, mAC);
+        ASSERT_EQ(OK, mAC->create()) << "record creation failed";
+    }
+
+    virtual void TearDown() override {
+        if (mAC) ASSERT_EQ(OK, mAC->stop());
+    }
+
+    sp<AudioCapture> mAC;
+};
+
+class AudioRecordCreateTest
+    : public ::testing::TestWithParam<
+              std::tuple<uint32_t, audio_format_t, audio_channel_mask_t, audio_input_flags_t,
+                         audio_session_t, audio_source_t>> {
+  public:
+    AudioRecordCreateTest()
+        : mSampleRate(std::get<0>(GetParam())),
+          mFormat(std::get<1>(GetParam())),
+          mChannelMask(std::get<2>(GetParam())),
+          mFlags(std::get<3>(GetParam())),
+          mSessionId(std::get<4>(GetParam())),
+          mInputSource(std::get<5>(GetParam())){};
+
+    const uint32_t mSampleRate;
+    const audio_format_t mFormat;
+    const audio_channel_mask_t mChannelMask;
+    const audio_input_flags_t mFlags;
+    const audio_session_t mSessionId;
+    const audio_source_t mInputSource;
+    const AudioRecord::transfer_type mTransferType = AudioRecord::TRANSFER_OBTAIN;
+
+    sp<AudioCapture> mAC;
+
+    virtual void SetUp() override {
+        mAC = new AudioCapture(mInputSource, mSampleRate, mFormat, mChannelMask, mFlags, mSessionId,
+                               mTransferType);
+        ASSERT_NE(nullptr, mAC);
+        ASSERT_EQ(OK, mAC->create()) << "record creation failed";
+    }
+
+    virtual void TearDown() override {
+        if (mAC) ASSERT_EQ(OK, mAC->stop());
+    }
+};
+
+TEST_F(AudioRecordTest, TestSimpleRecord) {
+    EXPECT_EQ(OK, mAC->start()) << "start recording failed";
+    EXPECT_EQ(OK, mAC->audioProcess()) << "audioProcess failed";
+}
+
+TEST_F(AudioRecordTest, TestAudioCbNotifier) {
+    EXPECT_EQ(BAD_VALUE, mAC->getAudioRecordHandle()->addAudioDeviceCallback(nullptr));
+    sp<OnAudioDeviceUpdateNotifier> cb = sp<OnAudioDeviceUpdateNotifier>::make();
+    sp<OnAudioDeviceUpdateNotifier> cbOld = sp<OnAudioDeviceUpdateNotifier>::make();
+    EXPECT_EQ(OK, mAC->getAudioRecordHandle()->addAudioDeviceCallback(cbOld));
+    EXPECT_EQ(INVALID_OPERATION, mAC->getAudioRecordHandle()->addAudioDeviceCallback(cbOld));
+    EXPECT_EQ(OK, mAC->getAudioRecordHandle()->addAudioDeviceCallback(cb));
+    EXPECT_EQ(OK, mAC->start()) << "record creation failed";
+    EXPECT_EQ(OK, cb->waitForAudioDeviceCb());
+    EXPECT_EQ(AUDIO_IO_HANDLE_NONE, cbOld->mAudioIo);
+    EXPECT_EQ(AUDIO_PORT_HANDLE_NONE, cbOld->mDeviceId);
+    EXPECT_NE(AUDIO_IO_HANDLE_NONE, cb->mAudioIo);
+    EXPECT_NE(AUDIO_PORT_HANDLE_NONE, cb->mDeviceId);
+    EXPECT_EQ(BAD_VALUE, mAC->getAudioRecordHandle()->removeAudioDeviceCallback(nullptr));
+    EXPECT_EQ(INVALID_OPERATION, mAC->getAudioRecordHandle()->removeAudioDeviceCallback(cbOld));
+    EXPECT_EQ(OK, mAC->getAudioRecordHandle()->removeAudioDeviceCallback(cb));
+    mAC->stop();
+}
+
+TEST_F(AudioRecordTest, TestEventRecordTrackPause) {
+    const auto playback = sp<AudioPlayback>::make(
+            8000 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_MONO);
+    ASSERT_EQ(OK, playback->loadResource("/data/local/tmp/bbb_1ch_8kHz_s16le.raw"))
+            << "Unable to open Resource";
+    EXPECT_EQ(OK, playback->create()) << "AudioTrack Creation failed";
+    audio_session_t audioTrackSession = playback->getAudioTrackHandle()->getSessionId();
+    EXPECT_EQ(OK, mAC->start(AudioSystem::SYNC_EVENT_PRESENTATION_COMPLETE, audioTrackSession))
+            << "record creation failed";
+    EXPECT_EQ(OK, playback->start());
+    RawBuffer buffer;
+    status_t status = mAC->obtainBufferCb(buffer);
+    EXPECT_EQ(status, TIMED_OUT) << "Not expecting any callbacks until track sends Sync event";
+    playback->getAudioTrackHandle()->pause();
+    EXPECT_EQ(OK, mAC->audioProcess()) << "audioProcess failed";
+    playback->stop();
+}
+
+TEST_F(AudioRecordTest, TestEventRecordTrackStop) {
+    const auto playback = sp<AudioPlayback>::make(
+            8000 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_MONO);
+    ASSERT_EQ(OK, playback->loadResource("/data/local/tmp/bbb_1ch_8kHz_s16le.raw"))
+            << "Unable to open Resource";
+    EXPECT_EQ(OK, playback->create()) << "AudioTrack Creation failed";
+    audio_session_t audioTrackSession = playback->getAudioTrackHandle()->getSessionId();
+    EXPECT_EQ(OK, mAC->start(AudioSystem::SYNC_EVENT_PRESENTATION_COMPLETE, audioTrackSession))
+            << "record creation failed";
+    EXPECT_EQ(OK, playback->start());
+    RawBuffer buffer;
+    status_t status = mAC->obtainBufferCb(buffer);
+    EXPECT_EQ(status, TIMED_OUT) << "Not expecting any callbacks until track sends Sync event";
+    playback->stop();
+    EXPECT_EQ(OK, mAC->audioProcess()) << "audioProcess failed";
+}
+
+TEST_F(AudioRecordTest, TestGetSetMarker) {
+    mAC->mMarkerPosition = (mAC->mNotificationFrames << 3) + (mAC->mNotificationFrames >> 1);
+    EXPECT_EQ(OK, mAC->getAudioRecordHandle()->setMarkerPosition(mAC->mMarkerPosition))
+            << "setMarkerPosition() failed";
+    uint32_t marker;
+    EXPECT_EQ(OK, mAC->getAudioRecordHandle()->getMarkerPosition(&marker))
+            << "getMarkerPosition() failed";
+    EXPECT_EQ(OK, mAC->start()) << "start recording failed";
+    EXPECT_EQ(OK, mAC->audioProcess()) << "audioProcess failed";
+    EXPECT_EQ(marker, mAC->mMarkerPosition)
+            << "configured marker and received marker are different";
+    EXPECT_EQ(mAC->mReceivedCbMarkerAtPosition, mAC->mMarkerPosition)
+            << "configured marker and received cb marker are different";
+}
+
+TEST_F(AudioRecordTest, TestGetSetMarkerPeriodical) {
+    mAC->mMarkerPeriod = (mAC->mNotificationFrames << 3) + (mAC->mNotificationFrames >> 1);
+    EXPECT_EQ(OK, mAC->getAudioRecordHandle()->setPositionUpdatePeriod(mAC->mMarkerPeriod))
+            << "setPositionUpdatePeriod() failed";
+    uint32_t marker;
+    EXPECT_EQ(OK, mAC->getAudioRecordHandle()->getPositionUpdatePeriod(&marker))
+            << "getPositionUpdatePeriod() failed";
+    EXPECT_EQ(OK, mAC->start()) << "start recording failed";
+    EXPECT_EQ(OK, mAC->audioProcess()) << "audioProcess failed";
+    EXPECT_EQ(marker, mAC->mMarkerPeriod) << "configured marker and received marker are different";
+    EXPECT_EQ(mAC->mReceivedCbMarkerCount, mAC->mNumFramesToRecord / mAC->mMarkerPeriod)
+            << "configured marker and received cb marker are different";
+}
+
+TEST_F(AudioRecordTest, TestGetPosition) {
+    uint32_t position;
+    EXPECT_EQ(OK, mAC->getAudioRecordHandle()->getPosition(&position)) << "getPosition() failed";
+    EXPECT_EQ(0, position);
+    EXPECT_EQ(OK, mAC->start()) << "start recording failed";
+    EXPECT_EQ(OK, mAC->audioProcess()) << "audioProcess failed";
+    EXPECT_EQ(OK, mAC->stop());
+    EXPECT_EQ(OK, mAC->getAudioRecordHandle()->getPosition(&position)) << "getPosition() failed";
+}
+
+// TODO: Add checkPatchCapture(), verify the information of patch via dumpPort() and dumpPatch()
+TEST_P(AudioRecordCreateTest, TestCreateRecord) {
+    EXPECT_EQ(mFormat, mAC->getAudioRecordHandle()->format());
+    EXPECT_EQ(audio_channel_count_from_in_mask(mChannelMask),
+              mAC->getAudioRecordHandle()->channelCount());
+    if (mAC->mFrameCount != 0)
+        EXPECT_LE(mAC->mFrameCount, mAC->getAudioRecordHandle()->frameCount());
+    EXPECT_EQ(mInputSource, mAC->getAudioRecordHandle()->inputSource());
+    if (mSampleRate != 0) EXPECT_EQ(mSampleRate, mAC->getAudioRecordHandle()->getSampleRate());
+    if (mSessionId != AUDIO_SESSION_NONE)
+        EXPECT_EQ(mSessionId, mAC->getAudioRecordHandle()->getSessionId());
+    if (mTransferType != AudioRecord::TRANSFER_CALLBACK) {
+        uint32_t marker;
+        mAC->mMarkerPosition = (mAC->mNotificationFrames << 3) + (mAC->mNotificationFrames >> 1);
+        EXPECT_EQ(INVALID_OPERATION,
+                  mAC->getAudioRecordHandle()->setMarkerPosition(mAC->mMarkerPosition));
+        EXPECT_EQ(OK, mAC->getAudioRecordHandle()->getMarkerPosition(&marker));
+        EXPECT_EQ(INVALID_OPERATION,
+                  mAC->getAudioRecordHandle()->setPositionUpdatePeriod(mAC->mMarkerPosition));
+        EXPECT_EQ(OK, mAC->getAudioRecordHandle()->getPositionUpdatePeriod(&marker));
+    }
+    EXPECT_EQ(OK, mAC->start()) << "start recording failed";
+    EXPECT_EQ(OK, mAC->audioProcess()) << "audioProcess failed";
+}
+
+// for port primary input
+INSTANTIATE_TEST_SUITE_P(AudioRecordPrimaryInput, AudioRecordCreateTest,
+                         ::testing::Combine(::testing::Values(8000, 11025, 12000, 16000, 22050,
+                                                              24000, 32000, 44100, 48000),
+                                            ::testing::Values(AUDIO_FORMAT_PCM_8_24_BIT),
+                                            ::testing::Values(AUDIO_CHANNEL_IN_MONO,
+                                                              AUDIO_CHANNEL_IN_STEREO,
+                                                              AUDIO_CHANNEL_IN_FRONT_BACK),
+                                            ::testing::Values(AUDIO_INPUT_FLAG_NONE),
+                                            ::testing::Values(AUDIO_SESSION_NONE),
+                                            ::testing::Values(AUDIO_SOURCE_DEFAULT)));
+
+// for port fast input
+INSTANTIATE_TEST_SUITE_P(AudioRecordFastInput, AudioRecordCreateTest,
+                         ::testing::Combine(::testing::Values(8000, 11025, 12000, 16000, 22050,
+                                                              24000, 32000, 44100, 48000),
+                                            ::testing::Values(AUDIO_FORMAT_PCM_8_24_BIT),
+                                            ::testing::Values(AUDIO_CHANNEL_IN_MONO,
+                                                              AUDIO_CHANNEL_IN_STEREO,
+                                                              AUDIO_CHANNEL_IN_FRONT_BACK),
+                                            ::testing::Values(AUDIO_INPUT_FLAG_FAST),
+                                            ::testing::Values(AUDIO_SESSION_NONE),
+                                            ::testing::Values(AUDIO_SOURCE_DEFAULT)));
+
+// misc
+INSTANTIATE_TEST_SUITE_P(AudioRecordMiscInput, AudioRecordCreateTest,
+                         ::testing::Combine(::testing::Values(48000),
+                                            ::testing::Values(AUDIO_FORMAT_PCM_16_BIT),
+                                            ::testing::Values(AUDIO_CHANNEL_IN_MONO),
+                                            ::testing::Values(AUDIO_INPUT_FLAG_NONE),
+                                            ::testing::Values(AUDIO_SESSION_NONE),
+                                            ::testing::Values(AUDIO_SOURCE_MIC,
+                                                              AUDIO_SOURCE_CAMCORDER,
+                                                              AUDIO_SOURCE_VOICE_RECOGNITION,
+                                                              AUDIO_SOURCE_VOICE_COMMUNICATION,
+                                                              AUDIO_SOURCE_UNPROCESSED)));
diff --git a/media/libaudioclient/tests/audiorouting_tests.cpp b/media/libaudioclient/tests/audiorouting_tests.cpp
new file mode 100644
index 0000000..445633b
--- /dev/null
+++ b/media/libaudioclient/tests/audiorouting_tests.cpp
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2021 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_NDEBUG 0
+
+#include <cutils/properties.h>
+#include <gtest/gtest.h>
+#include <string.h>
+
+#include "audio_test_utils.h"
+
+using namespace android;
+
+// UNIT TEST
+TEST(AudioTrackTest, TestPerformanceMode) {
+    std::vector<std::string> attachedDevices;
+    std::vector<MixPort> mixPorts;
+    std::vector<Route> routes;
+    EXPECT_EQ(OK, parse_audio_policy_configuration_xml(attachedDevices, mixPorts, routes));
+    std::string output_flags_string[] = {"AUDIO_OUTPUT_FLAG_FAST", "AUDIO_OUTPUT_FLAG_DEEP_BUFFER"};
+    audio_output_flags_t output_flags[] = {AUDIO_OUTPUT_FLAG_FAST, AUDIO_OUTPUT_FLAG_DEEP_BUFFER};
+    audio_flags_mask_t flags[] = {AUDIO_FLAG_LOW_LATENCY, AUDIO_FLAG_DEEP_BUFFER};
+    bool hasFlag = false;
+    for (int i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+        hasFlag = false;
+        for (int j = 0; j < mixPorts.size() && !hasFlag; j++) {
+            MixPort port = mixPorts[j];
+            if (port.role == "source" && port.flags.find(output_flags_string[i]) != -1) {
+                for (int k = 0; k < routes.size() && !hasFlag; k++) {
+                    if (routes[k].sources.find(port.name) != -1 &&
+                        std::find(attachedDevices.begin(), attachedDevices.end(), routes[k].sink) !=
+                                attachedDevices.end()) {
+                        hasFlag = true;
+                        std::cerr << "found port with flag " << output_flags_string[i] << "@ "
+                                  << " port :: name : " << port.name << " role : " << port.role
+                                  << " port :: flags : " << port.flags
+                                  << " connected via route name : " << routes[k].name
+                                  << " route sources : " << routes[k].sources
+                                  << " route sink : " << routes[k].sink << std::endl;
+                    }
+                }
+            }
+        }
+        if (!hasFlag) continue;
+        audio_attributes_t attributes = AUDIO_ATTRIBUTES_INITIALIZER;
+        attributes.usage = AUDIO_USAGE_MEDIA;
+        attributes.content_type = AUDIO_CONTENT_TYPE_MUSIC;
+        attributes.flags = flags[i];
+        sp<AudioPlayback> ap = sp<AudioPlayback>::make(
+                0 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
+                AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE, AudioTrack::TRANSFER_OBTAIN,
+                &attributes);
+        ASSERT_NE(nullptr, ap);
+        ASSERT_EQ(OK, ap->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
+                << "Unable to open Resource";
+        EXPECT_EQ(OK, ap->create()) << "track creation failed";
+        sp<OnAudioDeviceUpdateNotifier> cb = sp<OnAudioDeviceUpdateNotifier>::make();
+        EXPECT_EQ(OK, ap->getAudioTrackHandle()->addAudioDeviceCallback(cb));
+        EXPECT_EQ(OK, ap->start()) << "audio track start failed";
+        EXPECT_EQ(OK, ap->onProcess());
+        EXPECT_EQ(OK, cb->waitForAudioDeviceCb());
+        EXPECT_TRUE(checkPatchPlayback(cb->mAudioIo, cb->mDeviceId));
+        EXPECT_NE(0, ap->getAudioTrackHandle()->getFlags() & output_flags[i]);
+        audio_patch patch;
+        EXPECT_EQ(OK, getPatchForOutputMix(cb->mAudioIo, patch));
+        for (auto j = 0; j < patch.num_sources; j++) {
+            if (patch.sources[j].type == AUDIO_PORT_TYPE_MIX &&
+                patch.sources[j].ext.mix.handle == cb->mAudioIo) {
+                if ((patch.sources[j].flags.output & output_flags[i]) == 0) {
+                    ADD_FAILURE() << "expected output flag " << output_flags[i] << " is absent";
+                    std::cerr << dumpPortConfig(patch.sources[j]);
+                }
+            }
+        }
+        ap->stop();
+        ap->getAudioTrackHandle()->removeAudioDeviceCallback(cb);
+    }
+}
+
+TEST(AudioTrackTest, TestRemoteSubmix) {
+    std::vector<std::string> attachedDevices;
+    std::vector<MixPort> mixPorts;
+    std::vector<Route> routes;
+    EXPECT_EQ(OK, parse_audio_policy_configuration_xml(attachedDevices, mixPorts, routes));
+    bool hasFlag = false;
+    for (int j = 0; j < attachedDevices.size() && !hasFlag; j++) {
+        if (attachedDevices[j].find("Remote Submix") != -1) hasFlag = true;
+    }
+    if (!hasFlag) GTEST_SKIP() << " Device does not have Remote Submix port.";
+    sp<AudioCapture> capture = new AudioCapture(AUDIO_SOURCE_REMOTE_SUBMIX, 48000,
+                                                AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_STEREO);
+    ASSERT_NE(nullptr, capture);
+    ASSERT_EQ(OK, capture->create()) << "record creation failed";
+
+    sp<AudioPlayback> playback = sp<AudioPlayback>::make(
+            48000 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
+            AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE);
+    ASSERT_NE(nullptr, playback);
+    ASSERT_EQ(OK, playback->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
+            << "Unable to open Resource";
+    ASSERT_EQ(OK, playback->create()) << "track creation failed";
+
+    audio_port_v7 port;
+    status_t status = getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
+                                          AUDIO_DEVICE_IN_REMOTE_SUBMIX, port);
+    EXPECT_EQ(OK, status) << "Could not find port";
+
+    EXPECT_EQ(OK, capture->start()) << "start recording failed";
+    EXPECT_EQ(port.id, capture->getAudioRecordHandle()->getRoutedDeviceId())
+            << "Capture NOT routed on expected port";
+
+    status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
+                                 AUDIO_DEVICE_OUT_REMOTE_SUBMIX, port);
+    EXPECT_EQ(OK, status) << "Could not find port";
+
+    EXPECT_EQ(OK, playback->start()) << "audio track start failed";
+    EXPECT_EQ(OK, playback->onProcess());
+    ASSERT_EQ(port.id, playback->getAudioTrackHandle()->getRoutedDeviceId())
+            << "Playback NOT routed on expected port";
+    capture->stop();
+    playback->stop();
+}
diff --git a/media/libaudioclient/tests/audiosystem_tests.cpp b/media/libaudioclient/tests/audiosystem_tests.cpp
new file mode 100644
index 0000000..aed847c
--- /dev/null
+++ b/media/libaudioclient/tests/audiosystem_tests.cpp
@@ -0,0 +1,573 @@
+/*
+ * Copyright (C) 2021 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 "AudioSystemTest"
+
+#include <string.h>
+
+#include <gtest/gtest.h>
+#include <media/IAudioFlinger.h>
+#include <utils/Log.h>
+
+#include "audio_test_utils.h"
+
+using namespace android;
+
+void anyPatchContainsInputDevice(audio_port_handle_t deviceId, bool& res) {
+    std::vector<struct audio_patch> patches;
+    status_t status = listAudioPatches(patches);
+    ASSERT_EQ(OK, status);
+    res = false;
+    for (const auto& patch : patches) {
+        if (patchContainsInputDevice(deviceId, patch)) {
+            res = true;
+            return;
+        }
+    }
+}
+
+class AudioSystemTest : public ::testing::Test {
+  public:
+    void SetUp() override {
+        mAF = AudioSystem::get_audio_flinger();
+        ASSERT_NE(mAF, nullptr) << "Permission denied";
+    }
+
+    void TearDown() override {
+        if (mPlayback) {
+            mPlayback->stop();
+            mPlayback->getAudioTrackHandle()->removeAudioDeviceCallback(mCbPlayback);
+            mPlayback.clear();
+        }
+        if (mCapture) {
+            mCapture->stop();
+            mCapture->getAudioRecordHandle()->removeAudioDeviceCallback(mCbRecord);
+            mCapture.clear();
+        }
+    }
+
+    void createPlaybackSession(void);
+    void createRecordSession(void);
+
+    sp<IAudioFlinger> mAF;
+    sp<AudioPlayback> mPlayback;
+    sp<OnAudioDeviceUpdateNotifier> mCbPlayback;
+    sp<AudioCapture> mCapture;
+    sp<OnAudioDeviceUpdateNotifier> mCbRecord;
+};
+
+void AudioSystemTest::createPlaybackSession(void) {
+    audio_attributes_t attributes = AUDIO_ATTRIBUTES_INITIALIZER;
+    attributes.usage = AUDIO_USAGE_MEDIA;
+    attributes.content_type = AUDIO_CONTENT_TYPE_MUSIC;
+    mPlayback = sp<AudioPlayback>::make(48000, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
+                                        AUDIO_OUTPUT_FLAG_FAST, AUDIO_SESSION_NONE,
+                                        AudioTrack::TRANSFER_SHARED, &attributes);
+    ASSERT_NE(nullptr, mPlayback);
+    ASSERT_EQ(NO_ERROR, mPlayback->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"));
+    EXPECT_EQ(NO_ERROR, mPlayback->create());
+    mCbPlayback = sp<OnAudioDeviceUpdateNotifier>::make();
+    EXPECT_EQ(OK, mPlayback->getAudioTrackHandle()->addAudioDeviceCallback(mCbPlayback));
+    EXPECT_EQ(NO_ERROR, mPlayback->start());
+    EXPECT_EQ(OK, mPlayback->onProcess());
+    EXPECT_EQ(OK, mCbPlayback->waitForAudioDeviceCb());
+}
+
+void AudioSystemTest::createRecordSession(void) {
+    mCapture = new AudioCapture(AUDIO_SOURCE_DEFAULT, 44100, AUDIO_FORMAT_PCM_8_24_BIT,
+                                AUDIO_CHANNEL_IN_MONO, AUDIO_INPUT_FLAG_FAST);
+    ASSERT_NE(nullptr, mCapture);
+    ASSERT_EQ(OK, mCapture->create()) << "record creation failed";
+    mCbRecord = sp<OnAudioDeviceUpdateNotifier>::make();
+    EXPECT_EQ(OK, mCapture->getAudioRecordHandle()->addAudioDeviceCallback(mCbRecord));
+    EXPECT_EQ(OK, mCapture->start()) << "record creation failed";
+    EXPECT_EQ(OK, mCbRecord->waitForAudioDeviceCb());
+}
+
+// UNIT TESTS
+TEST_F(AudioSystemTest, CheckServerSideValues) {
+    ASSERT_NO_FATAL_FAILURE(createPlaybackSession());
+    EXPECT_GT(mAF->sampleRate(mCbPlayback->mAudioIo), 0);
+    EXPECT_NE(mAF->format(mCbPlayback->mAudioIo), AUDIO_FORMAT_INVALID);
+    EXPECT_GT(mAF->frameCount(mCbPlayback->mAudioIo), 0);
+    size_t frameCountHal, frameCountHalCache;
+    frameCountHal = mAF->frameCountHAL(mCbPlayback->mAudioIo);
+    EXPECT_GT(frameCountHal, 0);
+    EXPECT_EQ(OK, AudioSystem::getFrameCountHAL(mCbPlayback->mAudioIo, &frameCountHalCache));
+    EXPECT_EQ(frameCountHal, frameCountHalCache);
+    EXPECT_GT(mAF->latency(mCbPlayback->mAudioIo), 0);
+    // client side latency is at least server side latency
+    EXPECT_LE(mAF->latency(mCbPlayback->mAudioIo), mPlayback->getAudioTrackHandle()->latency());
+
+    ASSERT_NO_FATAL_FAILURE(createRecordSession());
+    EXPECT_GT(mAF->sampleRate(mCbRecord->mAudioIo), 0);
+    // EXPECT_NE(mAF->format(mCbRecord->mAudioIo), AUDIO_FORMAT_INVALID);
+    EXPECT_GT(mAF->frameCount(mCbRecord->mAudioIo), 0);
+    EXPECT_GT(mAF->frameCountHAL(mCbRecord->mAudioIo), 0);
+    frameCountHal = mAF->frameCountHAL(mCbRecord->mAudioIo);
+    EXPECT_GT(frameCountHal, 0);
+    EXPECT_EQ(OK, AudioSystem::getFrameCountHAL(mCbRecord->mAudioIo, &frameCountHalCache));
+    EXPECT_EQ(frameCountHal, frameCountHalCache);
+    // EXPECT_GT(mAF->latency(mCbRecord->mAudioIo), 0);
+    // client side latency is at least server side latency
+    // EXPECT_LE(mAF->latency(mCbRecord->mAudioIo), mCapture->getAudioRecordHandle()->latency());
+
+    EXPECT_GT(AudioSystem::getPrimaryOutputSamplingRate(), 0);  // first fast mixer sample rate
+    EXPECT_GT(AudioSystem::getPrimaryOutputFrameCount(), 0);    // fast mixer frame count
+}
+
+TEST_F(AudioSystemTest, GetSetMasterVolume) {
+    ASSERT_NO_FATAL_FAILURE(createPlaybackSession());
+    float origVol, tstVol;
+    EXPECT_EQ(NO_ERROR, AudioSystem::getMasterVolume(&origVol));
+    float newVol;
+    if (origVol + 0.2f > 1.0f) {
+        newVol = origVol - 0.2f;
+    } else {
+        newVol = origVol + 0.2f;
+    }
+    EXPECT_EQ(NO_ERROR, AudioSystem::setMasterVolume(newVol));
+    EXPECT_EQ(NO_ERROR, AudioSystem::getMasterVolume(&tstVol));
+    EXPECT_EQ(newVol, tstVol);
+    EXPECT_EQ(NO_ERROR, AudioSystem::setMasterVolume(origVol));
+    EXPECT_EQ(NO_ERROR, AudioSystem::getMasterVolume(&tstVol));
+    EXPECT_EQ(origVol, tstVol);
+}
+
+TEST_F(AudioSystemTest, GetSetMasterMute) {
+    ASSERT_NO_FATAL_FAILURE(createPlaybackSession());
+    bool origMuteState, tstMuteState;
+    EXPECT_EQ(NO_ERROR, AudioSystem::getMasterMute(&origMuteState));
+    EXPECT_EQ(NO_ERROR, AudioSystem::setMasterMute(!origMuteState));
+    EXPECT_EQ(NO_ERROR, AudioSystem::getMasterMute(&tstMuteState));
+    EXPECT_EQ(!origMuteState, tstMuteState);
+    EXPECT_EQ(NO_ERROR, AudioSystem::setMasterMute(origMuteState));
+    EXPECT_EQ(NO_ERROR, AudioSystem::getMasterMute(&tstMuteState));
+    EXPECT_EQ(origMuteState, tstMuteState);
+}
+
+TEST_F(AudioSystemTest, GetSetMicMute) {
+    ASSERT_NO_FATAL_FAILURE(createPlaybackSession());
+    bool origMuteState, tstMuteState;
+    EXPECT_EQ(NO_ERROR, AudioSystem::isMicrophoneMuted(&origMuteState));
+    EXPECT_EQ(NO_ERROR, AudioSystem::muteMicrophone(!origMuteState));
+    EXPECT_EQ(NO_ERROR, AudioSystem::isMicrophoneMuted(&tstMuteState));
+    EXPECT_EQ(!origMuteState, tstMuteState);
+    EXPECT_EQ(NO_ERROR, AudioSystem::muteMicrophone(origMuteState));
+    EXPECT_EQ(NO_ERROR, AudioSystem::isMicrophoneMuted(&tstMuteState));
+    EXPECT_EQ(origMuteState, tstMuteState);
+}
+
+TEST_F(AudioSystemTest, GetSetMasterBalance) {
+    ASSERT_NO_FATAL_FAILURE(createPlaybackSession());
+    float origBalance, tstBalance;
+    EXPECT_EQ(OK, AudioSystem::getMasterBalance(&origBalance));
+    float newBalance;
+    if (origBalance + 0.2f > 1.0f) {
+        newBalance = origBalance - 0.2f;
+    } else {
+        newBalance = origBalance + 0.2f;
+    }
+    EXPECT_EQ(OK, AudioSystem::setMasterBalance(newBalance));
+    EXPECT_EQ(OK, AudioSystem::getMasterBalance(&tstBalance));
+    EXPECT_EQ(newBalance, tstBalance);
+    EXPECT_EQ(OK, AudioSystem::setMasterBalance(origBalance));
+    EXPECT_EQ(OK, AudioSystem::getMasterBalance(&tstBalance));
+    EXPECT_EQ(origBalance, tstBalance);
+}
+
+TEST_F(AudioSystemTest, GetStreamVolume) {
+    ASSERT_NO_FATAL_FAILURE(createPlaybackSession());
+    float origStreamVol;
+    EXPECT_EQ(NO_ERROR, AudioSystem::getStreamVolume(AUDIO_STREAM_MUSIC, &origStreamVol,
+                                                     mCbPlayback->mAudioIo));
+}
+
+TEST_F(AudioSystemTest, GetStreamMute) {
+    ASSERT_NO_FATAL_FAILURE(createPlaybackSession());
+    bool origMuteState;
+    EXPECT_EQ(NO_ERROR, AudioSystem::getStreamMute(AUDIO_STREAM_MUSIC, &origMuteState));
+}
+
+TEST_F(AudioSystemTest, StartAndStopAudioSource) {
+    std::vector<struct audio_port_v7> ports;
+    audio_port_config sourcePortConfig;
+    audio_attributes_t attributes = AudioSystem::streamTypeToAttributes(AUDIO_STREAM_MUSIC);
+    audio_port_handle_t sourcePortHandle = AUDIO_PORT_HANDLE_NONE;
+
+    status_t status = listAudioPorts(ports);
+    ASSERT_EQ(OK, status);
+    if (ports.empty()) {
+        GTEST_SKIP() << "No ports returned by the audio system";
+    }
+
+    for (const auto& port : ports) {
+        if (port.role != AUDIO_PORT_ROLE_SOURCE || port.type != AUDIO_PORT_TYPE_DEVICE) continue;
+        sourcePortConfig = port.active_config;
+
+        bool patchFound;
+
+        // start audio source.
+        status_t ret =
+                AudioSystem::startAudioSource(&sourcePortConfig, &attributes, &sourcePortHandle);
+        EXPECT_EQ(OK, ret) << "AudioSystem::startAudioSource for source " << port.ext.device.address
+                           << " failed";
+
+        // verify that patch is established by the source port.
+        ASSERT_NO_FATAL_FAILURE(anyPatchContainsInputDevice(port.id, patchFound));
+        EXPECT_EQ(true, patchFound);
+        EXPECT_NE(sourcePortHandle, AUDIO_PORT_HANDLE_NONE);
+
+        if (sourcePortHandle != AUDIO_PORT_HANDLE_NONE) {
+            ret = AudioSystem::stopAudioSource(sourcePortHandle);
+            EXPECT_EQ(OK, ret) << "AudioSystem::stopAudioSource for handle failed";
+        }
+
+        // verify that no source port patch exists.
+        ASSERT_NO_FATAL_FAILURE(anyPatchContainsInputDevice(port.id, patchFound));
+        EXPECT_EQ(false, patchFound);
+    }
+}
+
+TEST_F(AudioSystemTest, CreateAndReleaseAudioPatch) {
+    status_t status;
+    struct audio_patch audioPatch;
+    std::vector<struct audio_port_v7> ports;
+    audio_patch_handle_t audioPatchHandle = AUDIO_PATCH_HANDLE_NONE;
+
+    bool patchFound = false;
+    audio_port_v7 sourcePort{};
+    audio_port_v7 sinkPort{};
+
+    audioPatch.id = 0;
+    audioPatch.num_sources = 1;
+    audioPatch.num_sinks = 1;
+
+    status = listAudioPorts(ports);
+    ASSERT_EQ(OK, status);
+    if (ports.empty()) {
+        GTEST_SKIP() << "No output devices returned by the audio system";
+    }
+
+    for (const auto& port : ports) {
+        if (port.role == AUDIO_PORT_ROLE_SOURCE && port.type == AUDIO_PORT_TYPE_DEVICE) {
+            sourcePort = port;
+        }
+        if (port.role == AUDIO_PORT_ROLE_SINK && port.type == AUDIO_PORT_TYPE_DEVICE &&
+            port.ext.device.type == AUDIO_DEVICE_OUT_SPEAKER) {
+            sinkPort = port;
+        }
+    }
+
+    audioPatch.sources[0] = sourcePort.active_config;
+    audioPatch.sinks[0] = sinkPort.active_config;
+
+    status = AudioSystem::createAudioPatch(&audioPatch, &audioPatchHandle);
+    EXPECT_EQ(OK, status) << "AudioSystem::createAudiopatch failed between source "
+                          << sourcePort.ext.device.address << " and sink "
+                          << sinkPort.ext.device.address;
+
+    // verify that patch is established between source and the sink.
+    ASSERT_NO_FATAL_FAILURE(anyPatchContainsInputDevice(sourcePort.id, patchFound));
+    EXPECT_EQ(true, patchFound);
+
+    EXPECT_NE(AUDIO_PORT_HANDLE_NONE, audioPatchHandle);
+    status = AudioSystem::releaseAudioPatch(audioPatchHandle);
+    EXPECT_EQ(OK, status) << "AudioSystem::releaseAudioPatch failed between source "
+                          << sourcePort.ext.device.address << " and sink "
+                          << sinkPort.ext.device.address;
+
+    // verify that no patch is established between source and the sink after releaseAudioPatch.
+    ASSERT_NO_FATAL_FAILURE(anyPatchContainsInputDevice(sourcePort.id, patchFound));
+    EXPECT_EQ(false, patchFound);
+}
+
+TEST_F(AudioSystemTest, GetAudioPort) {
+    std::vector<struct audio_port_v7> ports;
+    status_t status = listAudioPorts(ports);
+    ASSERT_EQ(OK, status);
+    for (const auto& port : ports) {
+        audio_port_v7 portTest{.id = port.id};
+        EXPECT_EQ(OK, AudioSystem::getAudioPort(&portTest));
+        EXPECT_TRUE(audio_ports_v7_are_equal(&portTest, &port));
+    }
+}
+
+TEST_F(AudioSystemTest, TestPhoneState) {
+    uid_t uid = getuid();
+    EXPECT_EQ(OK, AudioSystem::setPhoneState(AUDIO_MODE_RINGTONE, uid));
+    audio_mode_t state = AudioSystem::getPhoneState();
+    EXPECT_EQ(AUDIO_MODE_RINGTONE, state);
+    EXPECT_EQ(OK, AudioSystem::setPhoneState(AUDIO_MODE_IN_COMMUNICATION, uid));
+    state = AudioSystem::getPhoneState();
+    EXPECT_EQ(AUDIO_MODE_IN_COMMUNICATION, state);
+    EXPECT_EQ(OK, AudioSystem::setPhoneState(AUDIO_MODE_NORMAL, uid));
+    state = AudioSystem::getPhoneState();
+    EXPECT_EQ(AUDIO_MODE_NORMAL, state);
+}
+
+TEST_F(AudioSystemTest, GetDirectProfilesForAttributes) {
+    std::vector<audio_profile> audioProfiles;
+    audio_attributes_t attributes = AUDIO_ATTRIBUTES_INITIALIZER;
+    attributes.usage = AUDIO_USAGE_MEDIA;
+    attributes.content_type = AUDIO_CONTENT_TYPE_MUSIC;
+    EXPECT_EQ(BAD_VALUE, AudioSystem::getDirectProfilesForAttributes(nullptr, nullptr));
+    EXPECT_EQ(BAD_VALUE, AudioSystem::getDirectProfilesForAttributes(nullptr, &audioProfiles));
+    EXPECT_EQ(BAD_VALUE, AudioSystem::getDirectProfilesForAttributes(&attributes, nullptr));
+    EXPECT_EQ(NO_ERROR, AudioSystem::getDirectProfilesForAttributes(&attributes, &audioProfiles));
+}
+
+bool isPublicStrategy(const AudioProductStrategy& strategy) {
+    bool result = true;
+    for (auto& attribute : strategy.getAudioAttributes()) {
+        if (attribute.getAttributes() == AUDIO_ATTRIBUTES_INITIALIZER &&
+            (uint32_t(attribute.getStreamType()) >= AUDIO_STREAM_PUBLIC_CNT)) {
+            result = false;
+            break;
+        }
+    }
+    return result;
+}
+
+TEST_F(AudioSystemTest, DevicesForRoleAndStrategy) {
+    std::vector<struct audio_port_v7> ports;
+    status_t status = listAudioPorts(ports);
+    ASSERT_EQ(OK, status);
+
+    std::vector<struct audio_port_v7> devicePorts;
+    for (const auto& port : ports) {
+        if (port.type == AUDIO_PORT_TYPE_DEVICE && audio_is_output_device(port.ext.device.type)) {
+            devicePorts.push_back(port);
+        }
+    }
+    if (devicePorts.empty()) {
+        GTEST_SKIP() << "No output devices returned by the audio system";
+    }
+
+    AudioProductStrategyVector strategies;
+    EXPECT_EQ(OK, AudioSystem::listAudioProductStrategies(strategies));
+    if (strategies.empty()) {
+        GTEST_SKIP() << "No strategies returned by the audio system";
+    }
+
+    audio_attributes_t attributes = AUDIO_ATTRIBUTES_INITIALIZER;
+    attributes.usage = AUDIO_USAGE_MEDIA;
+
+    bool hasStrategyForMedia = false;
+    AudioProductStrategy mediaStrategy;
+    for (const auto& strategy : strategies) {
+        if (!isPublicStrategy(strategy)) continue;
+
+        for (const auto& att : strategy.getAudioAttributes()) {
+            if (strategy.attributesMatches(att.getAttributes(), attributes)) {
+                hasStrategyForMedia = true;
+                mediaStrategy = strategy;
+                break;
+            }
+        }
+    }
+
+    if (!hasStrategyForMedia) {
+        GTEST_SKIP() << "No strategies returned for music media";
+    }
+
+    AudioDeviceTypeAddrVector devices;
+    EXPECT_EQ(BAD_VALUE, AudioSystem::getDevicesForRoleAndStrategy(PRODUCT_STRATEGY_NONE,
+                                                                   DEVICE_ROLE_PREFERRED, devices));
+    EXPECT_EQ(BAD_VALUE, AudioSystem::getDevicesForRoleAndStrategy(mediaStrategy.getId(),
+                                                                   DEVICE_ROLE_NONE, devices));
+    status = AudioSystem::getDevicesForRoleAndStrategy(mediaStrategy.getId(), DEVICE_ROLE_PREFERRED,
+                                                       devices);
+    if (status == NAME_NOT_FOUND) {
+        AudioDeviceTypeAddrVector outputDevices;
+        for (const auto& port : devicePorts) {
+            if (port.ext.device.type == AUDIO_DEVICE_OUT_SPEAKER) {
+                const AudioDeviceTypeAddr outputDevice(port.ext.device.type,
+                                                       port.ext.device.address);
+                outputDevices.push_back(outputDevice);
+            }
+        }
+        EXPECT_EQ(OK, AudioSystem::setDevicesRoleForStrategy(mediaStrategy.getId(),
+                                                             DEVICE_ROLE_PREFERRED, outputDevices));
+        EXPECT_EQ(OK, AudioSystem::getDevicesForRoleAndStrategy(mediaStrategy.getId(),
+                                                                DEVICE_ROLE_PREFERRED, devices));
+        EXPECT_EQ(devices, outputDevices);
+        EXPECT_EQ(OK, AudioSystem::removeDevicesRoleForStrategy(mediaStrategy.getId(),
+                                                                DEVICE_ROLE_PREFERRED));
+        EXPECT_EQ(NAME_NOT_FOUND, AudioSystem::getDevicesForRoleAndStrategy(
+                                          mediaStrategy.getId(), DEVICE_ROLE_PREFERRED, devices));
+    }
+}
+
+TEST_F(AudioSystemTest, VolumeIndexForAttributes) {
+    AudioVolumeGroupVector groups;
+    EXPECT_EQ(OK, AudioSystem::listAudioVolumeGroups(groups));
+    for (const auto& group : groups) {
+        if (group.getAudioAttributes().empty()) continue;
+        const audio_attributes_t attr = group.getAudioAttributes()[0];
+        if (attr == AUDIO_ATTRIBUTES_INITIALIZER) continue;
+        audio_stream_type_t streamType = AudioSystem::attributesToStreamType(attr);
+        if (streamType >= AUDIO_STREAM_PUBLIC_CNT) continue;
+
+        volume_group_t vg;
+        EXPECT_EQ(OK, AudioSystem::getVolumeGroupFromAudioAttributes(attr, vg));
+        EXPECT_EQ(group.getId(), vg);
+
+        int index;
+        EXPECT_EQ(OK,
+                  AudioSystem::getVolumeIndexForAttributes(attr, index, AUDIO_DEVICE_OUT_SPEAKER));
+
+        int indexTest;
+        EXPECT_EQ(OK, AudioSystem::getStreamVolumeIndex(streamType, &indexTest,
+                                                        AUDIO_DEVICE_OUT_SPEAKER));
+        EXPECT_EQ(index, indexTest);
+    }
+}
+
+TEST_F(AudioSystemTest, DevicesRoleForCapturePreset) {
+    std::vector<struct audio_port_v7> ports;
+    status_t status = listAudioPorts(ports);
+    ASSERT_EQ(OK, status);
+
+    if (ports.empty()) {
+        GTEST_SKIP() << "No ports returned by the audio system";
+    }
+
+    audio_devices_t inDeviceA = AUDIO_DEVICE_IN_BUILTIN_MIC;
+    audio_devices_t inDeviceB = AUDIO_DEVICE_IN_BUILTIN_MIC;
+    for (const auto& port : ports) {
+        if (port.role != AUDIO_PORT_ROLE_SOURCE || port.type != AUDIO_PORT_TYPE_DEVICE) continue;
+        if (port.ext.device.type == inDeviceA) continue;
+        inDeviceB = port.ext.device.type;
+        break;
+    }
+    const audio_source_t audioSource = AUDIO_SOURCE_MIC;
+    const device_role_t role = DEVICE_ROLE_PREFERRED;
+    const AudioDeviceTypeAddr inputDevice(inDeviceA, "");
+    const AudioDeviceTypeAddrVector inputDevices = {inputDevice};
+    const AudioDeviceTypeAddr outputDevice(AUDIO_DEVICE_OUT_SPEAKER, "");
+    const AudioDeviceTypeAddrVector outputDevices = {outputDevice};
+
+    // Test invalid device when setting
+    EXPECT_EQ(BAD_VALUE,
+              AudioSystem::setDevicesRoleForCapturePreset(audioSource, role, outputDevices));
+    EXPECT_EQ(BAD_VALUE,
+              AudioSystem::addDevicesRoleForCapturePreset(audioSource, role, outputDevices));
+    EXPECT_EQ(BAD_VALUE,
+              AudioSystem::removeDevicesRoleForCapturePreset(audioSource, role, outputDevices));
+
+    // Test invalid role
+    AudioDeviceTypeAddrVector devices;
+    EXPECT_EQ(BAD_VALUE, AudioSystem::getDevicesForRoleAndCapturePreset(audioSource,
+                                                                        DEVICE_ROLE_NONE, devices));
+    EXPECT_EQ(BAD_VALUE, AudioSystem::setDevicesRoleForCapturePreset(audioSource, DEVICE_ROLE_NONE,
+                                                                     inputDevices));
+    EXPECT_EQ(BAD_VALUE, AudioSystem::addDevicesRoleForCapturePreset(audioSource, DEVICE_ROLE_NONE,
+                                                                     inputDevices));
+    EXPECT_EQ(BAD_VALUE, AudioSystem::removeDevicesRoleForCapturePreset(
+                                 audioSource, DEVICE_ROLE_NONE, inputDevices));
+    EXPECT_EQ(BAD_VALUE,
+              AudioSystem::clearDevicesRoleForCapturePreset(audioSource, DEVICE_ROLE_NONE));
+
+    // Without setting, call get/remove/clear must fail
+    EXPECT_EQ(NAME_NOT_FOUND,
+              AudioSystem::getDevicesForRoleAndCapturePreset(audioSource, role, devices));
+    EXPECT_TRUE(devices.empty());
+    EXPECT_EQ(NAME_NOT_FOUND,
+              AudioSystem::removeDevicesRoleForCapturePreset(audioSource, role, devices));
+    EXPECT_EQ(NAME_NOT_FOUND, AudioSystem::clearDevicesRoleForCapturePreset(audioSource, role));
+
+    // Test set/get devices role
+    EXPECT_EQ(NO_ERROR,
+              AudioSystem::setDevicesRoleForCapturePreset(audioSource, role, inputDevices));
+    ASSERT_EQ(NO_ERROR, AudioSystem::getDevicesForRoleAndCapturePreset(audioSource, role, devices));
+    EXPECT_EQ(devices, inputDevices);
+
+    // Test setting will change the previously set devices
+    const AudioDeviceTypeAddr inputDevice2 = AudioDeviceTypeAddr(inDeviceB, "");
+    AudioDeviceTypeAddrVector inputDevices2 = {inputDevice2};
+    EXPECT_EQ(NO_ERROR,
+              AudioSystem::setDevicesRoleForCapturePreset(audioSource, role, inputDevices2));
+    devices.clear();
+    EXPECT_EQ(NO_ERROR, AudioSystem::getDevicesForRoleAndCapturePreset(audioSource, role, devices));
+    EXPECT_EQ(devices, inputDevices2);
+
+    // Test add devices
+    EXPECT_EQ(NO_ERROR,
+              AudioSystem::addDevicesRoleForCapturePreset(audioSource, role, inputDevices));
+    devices.clear();
+    EXPECT_EQ(NO_ERROR, AudioSystem::getDevicesForRoleAndCapturePreset(audioSource, role, devices));
+    EXPECT_EQ(2, devices.size());
+    EXPECT_TRUE(std::find(devices.begin(), devices.end(), inputDevice) != devices.end());
+    EXPECT_TRUE(std::find(devices.begin(), devices.end(), inputDevice2) != devices.end());
+
+    // Test remove devices
+    EXPECT_EQ(NO_ERROR,
+              AudioSystem::removeDevicesRoleForCapturePreset(audioSource, role, inputDevices));
+    devices.clear();
+    EXPECT_EQ(NO_ERROR, AudioSystem::getDevicesForRoleAndCapturePreset(audioSource, role, devices));
+    EXPECT_EQ(devices, inputDevices2);
+
+    // Test remove devices that are not set as the device role
+    EXPECT_EQ(BAD_VALUE,
+              AudioSystem::removeDevicesRoleForCapturePreset(audioSource, role, inputDevices));
+
+    // Test clear devices
+    EXPECT_EQ(NO_ERROR, AudioSystem::clearDevicesRoleForCapturePreset(audioSource, role));
+    devices.clear();
+    EXPECT_EQ(NAME_NOT_FOUND,
+              AudioSystem::getDevicesForRoleAndCapturePreset(audioSource, role, devices));
+
+    AudioDeviceTypeAddrVector inputDevices3 = {inputDevice, inputDevice2};
+    EXPECT_EQ(NO_ERROR,
+              AudioSystem::setDevicesRoleForCapturePreset(audioSource, role, inputDevices3));
+    devices.clear();
+    EXPECT_EQ(NO_ERROR, AudioSystem::getDevicesForRoleAndCapturePreset(audioSource, role, devices));
+    EXPECT_EQ(2, devices.size());
+    EXPECT_TRUE(std::find(devices.begin(), devices.end(), inputDevice) != devices.end());
+    EXPECT_TRUE(std::find(devices.begin(), devices.end(), inputDevice2) != devices.end());
+    EXPECT_EQ(NO_ERROR, AudioSystem::clearDevicesRoleForCapturePreset(audioSource, role));
+}
+
+TEST_F(AudioSystemTest, UidDeviceAffinities) {
+    uid_t uid = getuid();
+
+    // Test invalid device for example audio_is_input_device
+    AudioDeviceTypeAddr inputDevice(AUDIO_DEVICE_IN_BUILTIN_MIC, "");
+    AudioDeviceTypeAddrVector inputDevices = {inputDevice};
+    EXPECT_EQ(BAD_VALUE, AudioSystem::setUidDeviceAffinities(uid, inputDevices));
+
+    // Test valid device for example audio_is_output_device
+    AudioDeviceTypeAddr outputDevice(AUDIO_DEVICE_OUT_SPEAKER, "");
+    AudioDeviceTypeAddrVector outputDevices = {outputDevice};
+    EXPECT_EQ(NO_ERROR, AudioSystem::setUidDeviceAffinities(uid, outputDevices));
+    EXPECT_EQ(NO_ERROR, AudioSystem::removeUidDeviceAffinities(uid));
+}
+
+TEST_F(AudioSystemTest, UserIdDeviceAffinities) {
+    int userId = 200;
+
+    // Test invalid device for example audio_is_input_device
+    AudioDeviceTypeAddr inputDevice(AUDIO_DEVICE_IN_BUILTIN_MIC, "");
+    AudioDeviceTypeAddrVector inputDevices = {inputDevice};
+    EXPECT_EQ(BAD_VALUE, AudioSystem::setUserIdDeviceAffinities(userId, inputDevices));
+
+    // Test valid device for ezample audio_is_output_device
+    AudioDeviceTypeAddr outputDevice(AUDIO_DEVICE_OUT_SPEAKER, "");
+    AudioDeviceTypeAddrVector outputDevices = {outputDevice};
+    EXPECT_EQ(NO_ERROR, AudioSystem::setUserIdDeviceAffinities(userId, outputDevices));
+    EXPECT_EQ(NO_ERROR, AudioSystem::removeUserIdDeviceAffinities(userId));
+}
diff --git a/media/libaudioclient/tests/audiotrack_tests.cpp b/media/libaudioclient/tests/audiotrack_tests.cpp
new file mode 100644
index 0000000..8daba0a
--- /dev/null
+++ b/media/libaudioclient/tests/audiotrack_tests.cpp
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2021 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_NDEBUG 0
+
+#include <gtest/gtest.h>
+
+#include "audio_test_utils.h"
+
+using namespace android;
+
+TEST(AudioTrackTest, TestPlayTrack) {
+    const auto ap = sp<AudioPlayback>::make(44100 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT,
+                                            AUDIO_CHANNEL_OUT_STEREO, AUDIO_OUTPUT_FLAG_NONE,
+                                            AUDIO_SESSION_NONE, AudioTrack::TRANSFER_OBTAIN);
+    ASSERT_NE(nullptr, ap);
+    ASSERT_EQ(OK, ap->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
+            << "Unable to open Resource";
+    EXPECT_EQ(OK, ap->create()) << "track creation failed";
+    EXPECT_EQ(OK, ap->start()) << "audio track start failed";
+    EXPECT_EQ(OK, ap->onProcess());
+    ap->stop();
+}
+
+TEST(AudioTrackTest, TestSeek) {
+    const auto ap = sp<AudioPlayback>::make(
+            44100 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO);
+    ASSERT_NE(nullptr, ap);
+    ASSERT_EQ(OK, ap->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
+            << "Unable to open Resource";
+    EXPECT_EQ(OK, ap->create()) << "track creation failed";
+    EXPECT_EQ(OK, ap->start()) << "audio track start failed";
+    EXPECT_EQ(OK, ap->onProcess(true));
+    ap->stop();
+}
+
+TEST(AudioTrackTest, OffloadOrDirectPlayback) {
+    audio_offload_info_t info = AUDIO_INFO_INITIALIZER;
+    info.sample_rate = 44100;
+    info.channel_mask = AUDIO_CHANNEL_OUT_STEREO;
+    info.format = AUDIO_FORMAT_MP3;
+    info.stream_type = AUDIO_STREAM_MUSIC;
+    info.bit_rate = 192;
+    info.duration_us = 120 * 1000000;  // 120 sec
+
+    audio_config_base_t config = {/* .sample_rate = */ info.sample_rate,
+                                  /* .channel_mask = */ info.channel_mask,
+                                  /* .format = */ AUDIO_FORMAT_PCM_16_BIT};
+    audio_attributes_t attributes = AUDIO_ATTRIBUTES_INITIALIZER;
+    attributes.content_type = AUDIO_CONTENT_TYPE_MUSIC;
+    attributes.usage = AUDIO_USAGE_MEDIA;
+    attributes.flags = AUDIO_FLAG_NONE;
+
+    if (!AudioTrack::isDirectOutputSupported(config, attributes) &&
+        AUDIO_OFFLOAD_NOT_SUPPORTED == AudioSystem::getOffloadSupport(info)) {
+        GTEST_SKIP() << "offload or direct playback is not supported";
+    }
+    sp<AudioPlayback> ap = nullptr;
+    if (AUDIO_OFFLOAD_NOT_SUPPORTED != AudioSystem::getOffloadSupport(info)) {
+        ap = sp<AudioPlayback>::make(info.sample_rate, info.format, info.channel_mask,
+                                     AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD, AUDIO_SESSION_NONE,
+                                     AudioTrack::TRANSFER_OBTAIN, nullptr, &info);
+    } else {
+        ap = sp<AudioPlayback>::make(config.sample_rate, config.format, config.channel_mask,
+                                     AUDIO_OUTPUT_FLAG_DIRECT, AUDIO_SESSION_NONE,
+                                     AudioTrack::TRANSFER_OBTAIN);
+    }
+    ASSERT_NE(nullptr, ap);
+    EXPECT_EQ(OK, ap->create()) << "track creation failed";
+    audio_dual_mono_mode_t mode;
+    if (OK != ap->getAudioTrackHandle()->getDualMonoMode(&mode)) {
+        std::cerr << "no dual mono presentation is available" << std::endl;
+    }
+    if (OK != ap->getAudioTrackHandle()->setDualMonoMode(AUDIO_DUAL_MONO_MODE_LR)) {
+        std::cerr << "no dual mono presentation is available" << std::endl;
+    } else {
+        EXPECT_EQ(OK, ap->getAudioTrackHandle()->getDualMonoMode(&mode));
+        EXPECT_EQ(AUDIO_DUAL_MONO_MODE_LR, mode);
+    }
+    float leveldB;
+    if (OK != ap->getAudioTrackHandle()->getAudioDescriptionMixLevel(&leveldB)) {
+        std::cerr << "Audio Description mixing is unavailable" << std::endl;
+    }
+    if (OK != ap->getAudioTrackHandle()->setAudioDescriptionMixLevel(3.14f)) {
+        std::cerr << "Audio Description mixing is unavailable" << std::endl;
+    } else {
+        EXPECT_EQ(OK, ap->getAudioTrackHandle()->getAudioDescriptionMixLevel(&leveldB));
+        EXPECT_EQ(3.14f, leveldB);
+    }
+    AudioPlaybackRate audioRate;
+    audioRate = ap->getAudioTrackHandle()->getPlaybackRate();
+    std::cerr << "playback speed :: " << audioRate.mSpeed << std::endl
+              << "playback pitch :: " << audioRate.mPitch << std::endl;
+    audioRate.mSpeed = 2.0f;
+    audioRate.mPitch = 2.0f;
+    audioRate.mStretchMode = AUDIO_TIMESTRETCH_STRETCH_VOICE;
+    audioRate.mFallbackMode = AUDIO_TIMESTRETCH_FALLBACK_MUTE;
+    EXPECT_TRUE(isAudioPlaybackRateValid(audioRate));
+    if (OK != ap->getAudioTrackHandle()->setPlaybackRate(audioRate)) {
+        std::cerr << "unable to set playback rate parameters" << std::endl;
+    } else {
+        AudioPlaybackRate audioRateLocal;
+        audioRateLocal = ap->getAudioTrackHandle()->getPlaybackRate();
+        EXPECT_TRUE(isAudioPlaybackRateEqual(audioRate, audioRateLocal));
+    }
+    ap->stop();
+}
+
+TEST(AudioTrackTest, TestAudioCbNotifier) {
+    const auto ap = sp<AudioPlayback>::make(0 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT,
+                                            AUDIO_CHANNEL_OUT_STEREO, AUDIO_OUTPUT_FLAG_FAST,
+                                            AUDIO_SESSION_NONE, AudioTrack::TRANSFER_SHARED);
+    ASSERT_NE(nullptr, ap);
+    ASSERT_EQ(OK, ap->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
+            << "Unable to open Resource";
+    EXPECT_EQ(OK, ap->create()) << "track creation failed";
+    EXPECT_EQ(BAD_VALUE, ap->getAudioTrackHandle()->addAudioDeviceCallback(nullptr));
+    sp<OnAudioDeviceUpdateNotifier> cb = sp<OnAudioDeviceUpdateNotifier>::make();
+    sp<OnAudioDeviceUpdateNotifier> cbOld = sp<OnAudioDeviceUpdateNotifier>::make();
+    EXPECT_EQ(OK, ap->getAudioTrackHandle()->addAudioDeviceCallback(cbOld));
+    EXPECT_EQ(INVALID_OPERATION, ap->getAudioTrackHandle()->addAudioDeviceCallback(cbOld));
+    EXPECT_EQ(OK, ap->getAudioTrackHandle()->addAudioDeviceCallback(cb));
+    EXPECT_EQ(OK, ap->start()) << "audio track start failed";
+    EXPECT_EQ(OK, ap->onProcess());
+    EXPECT_EQ(OK, cb->waitForAudioDeviceCb());
+    EXPECT_EQ(AUDIO_IO_HANDLE_NONE, cbOld->mAudioIo);
+    EXPECT_EQ(AUDIO_PORT_HANDLE_NONE, cbOld->mDeviceId);
+    EXPECT_NE(AUDIO_IO_HANDLE_NONE, cb->mAudioIo);
+    EXPECT_NE(AUDIO_PORT_HANDLE_NONE, cb->mDeviceId);
+    EXPECT_EQ(cb->mAudioIo, ap->getAudioTrackHandle()->getOutput());
+    EXPECT_EQ(cb->mDeviceId, ap->getAudioTrackHandle()->getRoutedDeviceId());
+    String8 keys;
+    keys = ap->getAudioTrackHandle()->getParameters(keys);
+    if (!keys.isEmpty()) {
+        std::cerr << "track parameters :: " << keys << std::endl;
+    }
+    EXPECT_TRUE(checkPatchPlayback(cb->mAudioIo, cb->mDeviceId));
+    EXPECT_EQ(BAD_VALUE, ap->getAudioTrackHandle()->removeAudioDeviceCallback(nullptr));
+    EXPECT_EQ(INVALID_OPERATION, ap->getAudioTrackHandle()->removeAudioDeviceCallback(cbOld));
+    EXPECT_EQ(OK, ap->getAudioTrackHandle()->removeAudioDeviceCallback(cb));
+    ap->stop();
+}
+
+class AudioTrackCreateTest
+    : public ::testing::TestWithParam<std::tuple<uint32_t, audio_format_t, audio_channel_mask_t,
+                                                 audio_output_flags_t, audio_session_t>> {
+  public:
+    AudioTrackCreateTest()
+        : mSampleRate(std::get<0>(GetParam())),
+          mFormat(std::get<1>(GetParam())),
+          mChannelMask(std::get<2>(GetParam())),
+          mFlags(std::get<3>(GetParam())),
+          mSessionId(std::get<4>(GetParam())){};
+
+    const uint32_t mSampleRate;
+    const audio_format_t mFormat;
+    const audio_channel_mask_t mChannelMask;
+    const audio_output_flags_t mFlags;
+    const audio_session_t mSessionId;
+
+    sp<AudioPlayback> mAP;
+
+    virtual void SetUp() override {
+        mAP = sp<AudioPlayback>::make(mSampleRate, mFormat, mChannelMask, mFlags,
+                                              mSessionId);
+        ASSERT_NE(nullptr, mAP);
+        ASSERT_EQ(OK, mAP->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
+                << "Unable to open Resource";
+        ASSERT_EQ(OK, mAP->create()) << "track creation failed";
+    }
+
+    virtual void TearDown() override {
+        if (mAP) mAP->stop();
+    }
+};
+
+TEST_P(AudioTrackCreateTest, TestCreateTrack) {
+    EXPECT_EQ(mFormat, mAP->getAudioTrackHandle()->format());
+    EXPECT_EQ(audio_channel_count_from_out_mask(mChannelMask),
+              mAP->getAudioTrackHandle()->channelCount());
+    if (mSampleRate != 0) EXPECT_EQ(mSampleRate, mAP->getAudioTrackHandle()->getSampleRate());
+    if (mSessionId != AUDIO_SESSION_NONE)
+        EXPECT_EQ(mSessionId, mAP->getAudioTrackHandle()->getSessionId());
+    EXPECT_EQ(mSampleRate, mAP->getAudioTrackHandle()->getOriginalSampleRate());
+    EXPECT_EQ(OK, mAP->start()) << "audio track start failed";
+    EXPECT_EQ(OK, mAP->onProcess());
+}
+
+// sampleRate, format, channelMask, flags, sessionId
+INSTANTIATE_TEST_SUITE_P(
+        AudioTrackParameterizedTest, AudioTrackCreateTest,
+        ::testing::Combine(::testing::Values(48000), ::testing::Values(AUDIO_FORMAT_PCM_16_BIT),
+                           ::testing::Values(AUDIO_CHANNEL_OUT_STEREO),
+                           ::testing::Values(AUDIO_OUTPUT_FLAG_NONE,
+                                             AUDIO_OUTPUT_FLAG_PRIMARY | AUDIO_OUTPUT_FLAG_FAST,
+                                             AUDIO_OUTPUT_FLAG_RAW | AUDIO_OUTPUT_FLAG_FAST,
+                                             AUDIO_OUTPUT_FLAG_DEEP_BUFFER),
+                           ::testing::Values(AUDIO_SESSION_NONE)));
diff --git a/media/libaudioclient/tests/bbb_1ch_8kHz_s16le.raw b/media/libaudioclient/tests/bbb_1ch_8kHz_s16le.raw
new file mode 100644
index 0000000..2d1e4bf
--- /dev/null
+++ b/media/libaudioclient/tests/bbb_1ch_8kHz_s16le.raw
Binary files differ
diff --git a/media/libaudioclient/tests/bbb_2ch_24kHz_s16le.raw b/media/libaudioclient/tests/bbb_2ch_24kHz_s16le.raw
new file mode 100644
index 0000000..c8ac5f7
--- /dev/null
+++ b/media/libaudioclient/tests/bbb_2ch_24kHz_s16le.raw
Binary files differ
diff --git a/media/libaudioclient/tests/test_create_audiorecord.cpp b/media/libaudioclient/tests/test_create_audiorecord.cpp
index 2e0883b..277110b 100644
--- a/media/libaudioclient/tests/test_create_audiorecord.cpp
+++ b/media/libaudioclient/tests/test_create_audiorecord.cpp
@@ -29,14 +29,13 @@
 
 #define NUM_ARGUMENTS 8
 #define VERSION_VALUE "1.0"
-#define PACKAGE_NAME  "AudioRecord test"
+#define PACKAGE_NAME "AudioRecord test"
 
 namespace android {
 
 using android::content::AttributionSourceState;
 
-int testRecord(FILE *inputFile, int outputFileFd)
-{
+int testRecord(FILE* inputFile, int outputFileFd) {
     char line[MAX_INPUT_FILE_LINE_LENGTH];
     uint32_t testCount = 0;
     Vector<String16> args;
@@ -47,11 +46,9 @@
     attributionSource.token = sp<BBinder>::make();
 
     if (inputFile == nullptr) {
-        sp<AudioRecord> record = new AudioRecord(AUDIO_SOURCE_DEFAULT,
-                                              0 /* sampleRate */,
-                                              AUDIO_FORMAT_DEFAULT,
-                                              AUDIO_CHANNEL_IN_MONO,
-                                              attributionSource);
+        sp<AudioRecord> record =
+                new AudioRecord(AUDIO_SOURCE_DEFAULT, 0 /* sampleRate */, AUDIO_FORMAT_DEFAULT,
+                                AUDIO_CHANNEL_IN_MONO, attributionSource);
         if (record == 0 || record->initCheck() != NO_ERROR) {
             write(outputFileFd, "Error creating AudioRecord\n",
                   sizeof("Error creating AudioRecord\n"));
@@ -80,11 +77,10 @@
         char statusStr[MAX_OUTPUT_FILE_LINE_LENGTH];
         bool fast = false;
 
-        if (sscanf(line, " %u %x %x %zu %d %x %u %u",
-                   &sampleRate, &format, &channelMask,
-                   &frameCount, &notificationFrames,
-                   &flags, &sessionId, &inputSource) != NUM_ARGUMENTS) {
-            fprintf(stderr, "Malformed line for test #%u in input file\n", testCount+1);
+        if (sscanf(line, " %u %x %x %zu %d %x %u %u", &sampleRate, &format, &channelMask,
+                   &frameCount, &notificationFrames, &flags, &sessionId,
+                   &inputSource) != NUM_ARGUMENTS) {
+            fprintf(stderr, "Malformed line for test #%u in input file\n", testCount + 1);
             ret = 1;
             continue;
         }
@@ -100,21 +96,10 @@
         sp<AudioRecord> record = new AudioRecord(attributionSource);
         const auto emptyCallback = sp<AudioRecord::IAudioRecordCallback>::make();
 
-        record->set(AUDIO_SOURCE_DEFAULT,
-                   sampleRate,
-                   format,
-                   channelMask,
-                   frameCount,
-                   fast ? emptyCallback : nullptr,
-                   notificationFrames,
-                   false,
-                   sessionId,
-                   fast ? AudioRecord::TRANSFER_CALLBACK : AudioRecord::TRANSFER_DEFAULT,
-                   flags,
-                   getuid(),
-                   getpid(),
-                   &attributes,
-                   AUDIO_PORT_HANDLE_NONE);
+        record->set(AUDIO_SOURCE_DEFAULT, sampleRate, format, channelMask, frameCount,
+                    fast ? emptyCallback : nullptr, notificationFrames, false, sessionId,
+                    fast ? AudioRecord::TRANSFER_CALLBACK : AudioRecord::TRANSFER_DEFAULT, flags,
+                    getuid(), getpid(), &attributes, AUDIO_PORT_HANDLE_NONE);
         status = record->initCheck();
         sprintf(statusStr, "\n#### Test %u status %d\n", testCount, status);
         write(outputFileFd, statusStr, strlen(statusStr));
@@ -126,11 +111,8 @@
     return ret;
 }
 
-}; // namespace android
+};  // namespace android
 
-
-int main(int argc, char **argv)
-{
+int main(int argc, char** argv) {
     return android::main(argc, argv, android::testRecord);
 }
-
diff --git a/media/libaudioclient/tests/test_create_audiotrack.cpp b/media/libaudioclient/tests/test_create_audiotrack.cpp
index e7231d3..4e09e21 100644
--- a/media/libaudioclient/tests/test_create_audiotrack.cpp
+++ b/media/libaudioclient/tests/test_create_audiotrack.cpp
@@ -32,18 +32,15 @@
 
 namespace android {
 
-int testTrack(FILE *inputFile, int outputFileFd)
-{
+int testTrack(FILE* inputFile, int outputFileFd) {
     char line[MAX_INPUT_FILE_LINE_LENGTH];
     uint32_t testCount = 0;
     Vector<String16> args;
     int ret = 0;
 
     if (inputFile == nullptr) {
-        sp<AudioTrack> track = new AudioTrack(AUDIO_STREAM_DEFAULT,
-                                              0 /* sampleRate */,
-                                              AUDIO_FORMAT_DEFAULT,
-                                              AUDIO_CHANNEL_OUT_STEREO);
+        sp<AudioTrack> track = new AudioTrack(AUDIO_STREAM_DEFAULT, 0 /* sampleRate */,
+                                              AUDIO_FORMAT_DEFAULT, AUDIO_CHANNEL_OUT_STEREO);
         if (track == 0 || track->initCheck() != NO_ERROR) {
             write(outputFileFd, "Error creating AudioTrack\n",
                   sizeof("Error creating AudioTrack\n"));
@@ -78,11 +75,10 @@
         bool offload = false;
         bool fast = false;
 
-        if (sscanf(line, " %u %x %x %zu %d %u %x %u %u %u",
-                   &sampleRate, &format, &channelMask,
-                   &frameCount, &notificationFrames, &useSharedBuffer,
-                   &flags, &sessionId, &usage, &contentType) != NUM_ARGUMENTS) {
-            fprintf(stderr, "Malformed line for test #%u in input file\n", testCount+1);
+        if (sscanf(line, " %u %x %x %zu %d %u %x %u %u %u", &sampleRate, &format, &channelMask,
+                   &frameCount, &notificationFrames, &useSharedBuffer, &flags, &sessionId, &usage,
+                   &contentType) != NUM_ARGUMENTS) {
+            fprintf(stderr, "Malformed line for test #%u in input file\n", testCount + 1);
             ret = 1;
             continue;
         }
@@ -90,7 +86,7 @@
 
         if (useSharedBuffer != 0) {
             size_t heapSize = audio_channel_count_from_out_mask(channelMask) *
-                    audio_bytes_per_sample(format) * frameCount;
+                              audio_bytes_per_sample(format) * frameCount;
             heap = new MemoryDealer(heapSize, "AudioTrack Heap Base");
             sharedBuffer = heap->allocate(heapSize);
             frameCount = 0;
@@ -111,25 +107,13 @@
         attributes.usage = usage;
         sp<AudioTrack> track = new AudioTrack();
         const auto emptyCallback = sp<AudioTrack::IAudioTrackCallback>::make();
-        track->set(AUDIO_STREAM_DEFAULT,
-                   sampleRate,
-                   format,
-                   channelMask,
-                   frameCount,
-                   flags,
-                   (fast || offload) ? emptyCallback : nullptr,
-                   notificationFrames,
-                   sharedBuffer,
-                   false,
-                   sessionId,
-                   ((fast && sharedBuffer == 0) || offload) ?
-                           AudioTrack::TRANSFER_CALLBACK : AudioTrack::TRANSFER_DEFAULT,
-                   offload ? &offloadInfo : nullptr,
-                   AttributionSourceState(),
-                   &attributes,
-                   false,
-                   1.0f,
-                   AUDIO_PORT_HANDLE_NONE);
+        track->set(AUDIO_STREAM_DEFAULT, sampleRate, format, channelMask, frameCount, flags,
+                   (fast || offload) ? emptyCallback : nullptr, notificationFrames, sharedBuffer,
+                   false, sessionId,
+                   ((fast && sharedBuffer == 0) || offload) ? AudioTrack::TRANSFER_CALLBACK
+                                                            : AudioTrack::TRANSFER_DEFAULT,
+                   offload ? &offloadInfo : nullptr, AttributionSourceState(), &attributes, false,
+                   1.0f, AUDIO_PORT_HANDLE_NONE);
         status = track->initCheck();
         sprintf(statusStr, "\n#### Test %u status %d\n", testCount, status);
         write(outputFileFd, statusStr, strlen(statusStr));
@@ -141,11 +125,8 @@
     return ret;
 }
 
-}; // namespace android
+};  // namespace android
 
-
-int main(int argc, char **argv)
-{
+int main(int argc, char** argv) {
     return android::main(argc, argv, android::testTrack);
 }
-
diff --git a/media/libaudioclient/tests/test_create_utils.cpp b/media/libaudioclient/tests/test_create_utils.cpp
index caf5227..c2c2e8b 100644
--- a/media/libaudioclient/tests/test_create_utils.cpp
+++ b/media/libaudioclient/tests/test_create_utils.cpp
@@ -23,10 +23,10 @@
 
 namespace android {
 
-int readLine(FILE *inputFile, char *line, int size) {
+int readLine(FILE* inputFile, char* line, int size) {
     int ret = 0;
     while (true) {
-        char *str = fgets(line, size, inputFile);
+        char* str = fgets(line, size, inputFile);
         if (str == nullptr) {
             ret = -1;
             break;
@@ -42,8 +42,7 @@
     return ret;
 }
 
-bool checkVersion(FILE *inputFile, const char *version)
-{
+bool checkVersion(FILE* inputFile, const char* version) {
     char line[MAX_INPUT_FILE_LINE_LENGTH];
     char versionKey[MAX_INPUT_FILE_LINE_LENGTH];
     char versionValue[MAX_INPUT_FILE_LINE_LENGTH];
@@ -68,9 +67,8 @@
     return true;
 }
 
-int main(int argc, char **argv, test_func_t testFunc)
-{
-    FILE *inputFile = nullptr;
+int main(int argc, char** argv, test_func_t testFunc) {
+    FILE* inputFile = nullptr;
     int outputFileFd = STDOUT_FILENO;
     mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
     int ret = 0;
@@ -96,7 +94,7 @@
         if (strcmp(*argv, "-o") == 0) {
             argv++;
             if (*argv) {
-                outputFileFd = open(*argv, O_WRONLY|O_CREAT, mode);
+                outputFileFd = open(*argv, O_WRONLY | O_CREAT, mode);
                 if (outputFileFd < 0) {
                     ret = 1;
                 }
@@ -126,5 +124,4 @@
     return ret;
 }
 
-}; // namespace android
-
+};  // namespace android
diff --git a/media/libaudioclient/tests/test_create_utils.h b/media/libaudioclient/tests/test_create_utils.h
index 9a6f9fa..110baf7 100644
--- a/media/libaudioclient/tests/test_create_utils.h
+++ b/media/libaudioclient/tests/test_create_utils.h
@@ -27,13 +27,12 @@
 
 namespace android {
 
-int readLine(FILE *inputFile, char *line, int size);
+int readLine(FILE* inputFile, char* line, int size);
 
-bool checkVersion(FILE *inputFile, const char *version);
+bool checkVersion(FILE* inputFile, const char* version);
 
+typedef int (*test_func_t)(FILE* inputFile, int outputFileFd);
 
-typedef int (*test_func_t)(FILE *inputFile, int outputFileFd);
+int main(int argc, char** argv, test_func_t testFunc);
 
-int main(int argc, char **argv, test_func_t testFunc);
-
-}; // namespace android
+};  // namespace android
diff --git a/media/libaudioclient/tests/trackplayerbase_tests.cpp b/media/libaudioclient/tests/trackplayerbase_tests.cpp
new file mode 100644
index 0000000..c9b704d
--- /dev/null
+++ b/media/libaudioclient/tests/trackplayerbase_tests.cpp
@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2021 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 "TrackPlayerBaseTest"
+
+#include <gtest/gtest.h>
+
+#include <media/TrackPlayerBase.h>
+
+using namespace android;
+using namespace android::media;
+
+class TrackPlayer : public TrackPlayerBase, public AudioTrack::IAudioTrackCallback {
+  public:
+    // methods protected in base class
+    using TrackPlayerBase::playerPause;
+    using TrackPlayerBase::playerSetVolume;
+    using TrackPlayerBase::playerStart;
+    using TrackPlayerBase::playerStop;
+};
+
+class TrackPlayerBaseTest
+    : public ::testing::TestWithParam<std::tuple<double, double, uint32_t, uint32_t>> {
+  public:
+    TrackPlayerBaseTest()
+        : mDuration(std::get<0>(GetParam())),
+          mPulseFreq(std::get<1>(GetParam())),
+          mChannelCount(std::get<2>(GetParam())),
+          mSampleRate(std::get<3>(GetParam())){};
+
+    virtual void SetUp() override {
+        mFrameCount = mDuration * mSampleRate;
+        audio_channel_mask_t channelMask = audio_channel_out_mask_from_count(mChannelCount);
+        sp<AudioTrack> track = new AudioTrack(mStreamType, mSampleRate, mFormat, channelMask,
+                                              mFrameCount, mFlags, nullptr /* callback */,
+                                              0 /* notificationFrames */, AUDIO_SESSION_NONE);
+        ASSERT_EQ(track->initCheck(), NO_ERROR);
+
+        mPlayer = new TrackPlayer();
+        mPlayer->init(track.get(), mPlayer, PLAYER_TYPE_AAUDIO, AUDIO_USAGE_MEDIA,
+                      AUDIO_SESSION_NONE);
+        sp<AudioTrack> playerTrack = mPlayer->mAudioTrack;
+        ASSERT_EQ(playerTrack->initCheck(), NO_ERROR);
+
+        mBufferSize = mFrameCount * playerTrack->frameSize();
+        mBuffer.resize(mBufferSize, 0);
+
+        // populate buffer
+        ASSERT_NE(mPulseFreq, 0);
+        int32_t nPulseSamples = mSampleRate / mPulseFreq;
+        int32_t pulseSize = nPulseSamples * playerTrack->frameSize();
+
+        int32_t marker = 0;
+        while (marker + pulseSize <= mBufferSize) {
+            memset(mBuffer.data() + marker, 127, pulseSize / 2);
+            marker += pulseSize;
+        }
+    }
+
+    void playBuffer() {
+        bool blocking = true;
+        ssize_t nbytes = mPlayer->mAudioTrack->write(mBuffer.data(), mBufferSize, blocking);
+        EXPECT_EQ(nbytes, mBufferSize) << "Did not write all data in blocking mode";
+    }
+
+    const double mDuration;  // seconds
+    sp<TrackPlayer> mPlayer;
+
+  private:
+    const double mPulseFreq;
+    const uint32_t mChannelCount;
+    const uint32_t mSampleRate;
+
+    const audio_format_t mFormat = AUDIO_FORMAT_PCM_16_BIT;
+    const audio_output_flags_t mFlags = AUDIO_OUTPUT_FLAG_NONE;
+    const audio_stream_type_t mStreamType = AUDIO_STREAM_MUSIC;
+
+    int32_t mBufferSize;
+    int32_t mFrameCount;
+    std::vector<uint8_t> mBuffer;
+};
+
+class PlaybackTestParam : public TrackPlayerBaseTest {};
+
+TEST_P(PlaybackTestParam, PlaybackTest) {
+    // no-op implementation
+    EXPECT_TRUE(mPlayer->setStartDelayMs(0).isOk());
+
+    ASSERT_EQ(mPlayer->playerStart(), NO_ERROR);
+    ASSERT_NO_FATAL_FAILURE(playBuffer());
+    EXPECT_EQ(mPlayer->playerStop(), NO_ERROR);
+}
+
+INSTANTIATE_TEST_SUITE_P(TrackPlayerTest, PlaybackTestParam,
+                         ::testing::Values(std::make_tuple(2.5, 25.0, 2, 48000)));
+
+class ChangeVolumeTestParam : public TrackPlayerBaseTest {};
+
+TEST_P(ChangeVolumeTestParam, ChangeVolumeTest) {
+    float volume = 1.0f;
+    (void)mPlayer->setPlayerVolume(volume / 2, volume);
+
+    ASSERT_TRUE(mPlayer->start().isOk());
+    ASSERT_EQ(mPlayer->playerSetVolume(), NO_ERROR);
+
+    ASSERT_NO_FATAL_FAILURE(playBuffer());
+
+    EXPECT_TRUE(mPlayer->stop().isOk());
+
+    std::vector<float> setVol = {0.95f, 0.05f, 0.5f, 0.25f, -1.0f, 1.0f, 1.0f};
+    std::vector<float> setPan = {0.0f, 0.0f, 1.0f, -1.0f, -1.0f, 0.5f, -0.5f};
+
+    ASSERT_TRUE(mPlayer->start().isOk());
+
+    for (int32_t i = 0; i < setVol.size(); i++) {
+        EXPECT_TRUE(mPlayer->setVolume(setVol[i]).isOk());
+        EXPECT_TRUE(mPlayer->setPan(setPan[i]).isOk());
+        ASSERT_NO_FATAL_FAILURE(playBuffer());
+    }
+    EXPECT_TRUE(mPlayer->stop().isOk());
+}
+
+INSTANTIATE_TEST_SUITE_P(TrackPlayerTest, ChangeVolumeTestParam,
+                         ::testing::Values(std::make_tuple(1.0, 100.0, 1, 24000)));
+
+class PauseTestParam : public TrackPlayerBaseTest {};
+
+TEST_P(PauseTestParam, PauseTest) {
+    ASSERT_EQ(mPlayer->playerStart(), NO_ERROR);
+    ASSERT_NO_FATAL_FAILURE(playBuffer());
+
+    ASSERT_EQ(mPlayer->playerPause(), NO_ERROR);
+    ASSERT_EQ(mPlayer->playerStart(), NO_ERROR);
+
+    ASSERT_NO_FATAL_FAILURE(playBuffer());
+
+    EXPECT_EQ(mPlayer->playerStop(), NO_ERROR);
+
+    for (int32_t i = 0; i < 5; i++) {
+        ASSERT_TRUE(mPlayer->start().isOk());
+        ASSERT_NO_FATAL_FAILURE(playBuffer());
+        ASSERT_TRUE(mPlayer->pause().isOk());
+    }
+    EXPECT_TRUE(mPlayer->stop().isOk());
+}
+
+INSTANTIATE_TEST_SUITE_P(TrackPlayerTest, PauseTestParam,
+                         ::testing::Values(std::make_tuple(1.0, 75.0, 2, 24000)));
diff --git a/media/libaudiofoundation/DeviceDescriptorBase.cpp b/media/libaudiofoundation/DeviceDescriptorBase.cpp
index 5ffbffc..91efb96 100644
--- a/media/libaudiofoundation/DeviceDescriptorBase.cpp
+++ b/media/libaudiofoundation/DeviceDescriptorBase.cpp
@@ -126,7 +126,14 @@
                     "%*sEncapsulation modes: %u, metadata types: %u\n", spaces, "",
                     mEncapsulationModes, mEncapsulationMetadataTypes));
 
-    AudioPort::dump(dst, spaces, nullptr, verbose);
+    std::string portStr;
+    AudioPort::dump(&portStr, spaces, nullptr, verbose);
+    if (!portStr.empty()) {
+        if (!mName.empty()) {
+            dst->append(base::StringPrintf("%*s", spaces, ""));
+        }
+        dst->append(portStr);
+    }
 }
 
 std::string DeviceDescriptorBase::toString(bool includeSensitiveInfo) const
diff --git a/media/libaudiofoundation/include/media/AudioPort.h b/media/libaudiofoundation/include/media/AudioPort.h
index d6a098f..b1235f5 100644
--- a/media/libaudiofoundation/include/media/AudioPort.h
+++ b/media/libaudiofoundation/include/media/AudioPort.h
@@ -72,7 +72,7 @@
     AudioProfileVector &getAudioProfiles() { return mProfiles; }
 
     void setExtraAudioDescriptors(
-            const std::vector<media::audio::common::ExtraAudioDescriptor> extraAudioDescriptors) {
+            const std::vector<media::audio::common::ExtraAudioDescriptor>& extraAudioDescriptors) {
         mExtraAudioDescriptors = extraAudioDescriptors;
     }
     std::vector<media::audio::common::ExtraAudioDescriptor> &getExtraAudioDescriptors() {
diff --git a/media/libeffects/hapticgenerator/EffectHapticGenerator.cpp b/media/libeffects/hapticgenerator/EffectHapticGenerator.cpp
index 3137e13..d8cf20e 100644
--- a/media/libeffects/hapticgenerator/EffectHapticGenerator.cpp
+++ b/media/libeffects/hapticgenerator/EffectHapticGenerator.cpp
@@ -22,6 +22,7 @@
 
 #include <algorithm>
 #include <memory>
+#include <sstream>
 #include <string>
 #include <utility>
 
@@ -94,6 +95,33 @@
     return defaultValue;
 }
 
+std::string hapticParamToString(const struct HapticGeneratorParam& param) {
+    std::stringstream ss;
+    ss << "\t\tHapticGenerator Parameters:\n";
+    ss << "\t\t- resonant frequency: " << param.resonantFrequency << '\n';
+    ss << "\t\t- bpf Q: " << param.bpfQ << '\n';
+    ss << "\t\t- slow env normalization power: " << param.slowEnvNormalizationPower << '\n';
+    ss << "\t\t- bsf zero Q: " << param.bsfZeroQ << '\n';
+    ss << "\t\t- bsf pole Q: " << param.bsfPoleQ << '\n';
+    ss << "\t\t- distortion corner frequency: " << param.distortionCornerFrequency << '\n';
+    ss << "\t\t- distortion input gain: " << param.distortionInputGain << '\n';
+    ss << "\t\t- distortion cube threshold: " << param.distortionCubeThreshold << '\n';
+    ss << "\t\t- distortion output gain: " << param.distortionOutputGain << '\n';
+    return ss.str();
+}
+
+std::string hapticSettingToString(const struct HapticGeneratorParam& param) {
+    std::stringstream ss;
+    ss << "\t\tHaptic setting:\n";
+    ss << "\t\t- tracks intensity map:\n";
+    for (const auto&[id, intensity] : param.id2Intensity) {
+        ss << "\t\t\t- id=" << id << ", intensity=" << (int) intensity;
+    }
+    ss << "\t\t- max intensity: " << (int) param.maxHapticIntensity << '\n';
+    ss << "\t\t- max haptic amplitude: " << param.maxHapticAmplitude << '\n';
+    return ss.str();
+}
+
 int HapticGenerator_Init(struct HapticGeneratorContext *context) {
     context->itfe = &gHapticGeneratorInterface;
 
@@ -129,7 +157,7 @@
     context->param.distortionCubeThreshold = 0.1f;
     context->param.distortionOutputGain = getFloatProperty(
             "vendor.audio.hapticgenerator.distortion.output.gain", DEFAULT_DISTORTION_OUTPUT_GAIN);
-    ALOGD("Using distortion output gain as %f", context->param.distortionOutputGain);
+    ALOGD("%s\n%s", __func__, hapticParamToString(context->param).c_str());
 
     context->state = HAPTICGENERATOR_STATE_INITIALIZED;
     return 0;
@@ -289,6 +317,7 @@
         }
         int id = *(int *) value;
         os::HapticScale hapticIntensity = static_cast<os::HapticScale>(*((int *) value + 1));
+        ALOGD("Setting haptic intensity as %d", hapticIntensity);
         if (hapticIntensity == os::HapticScale::MUTE) {
             context->param.id2Intensity.erase(id);
         } else {
@@ -313,6 +342,10 @@
         context->param.bsfZeroQ = isnan(qFactor) ? DEFAULT_BSF_POLE_Q : qFactor;
         context->param.bsfPoleQ = context->param.bsfZeroQ / 2.0f;
         context->param.maxHapticAmplitude = maxAmplitude;
+        ALOGD("Updating vibrator info, resonantFrequency=%f, bsfZeroQ=%f, bsfPoleQ=%f, "
+              "maxHapticAmplitude=%f",
+              context->param.resonantFrequency, context->param.bsfZeroQ, context->param.bsfPoleQ,
+              context->param.maxHapticAmplitude);
 
         if (context->processorsRecord.bpf != nullptr) {
             context->processorsRecord.bpf->setCoefficients(
@@ -358,6 +391,11 @@
     return in;
 }
 
+void HapticGenerator_Dump(int32_t fd, const struct HapticGeneratorParam& param) {
+    dprintf(fd, "%s", hapticParamToString(param).c_str());
+    dprintf(fd, "%s", hapticSettingToString(param).c_str());
+}
+
 } // namespace (anonymous)
 
 //-----------------------------------------------------------------------------
@@ -562,6 +600,10 @@
         case EFFECT_CMD_SET_AUDIO_MODE:
             break;
 
+        case EFFECT_CMD_DUMP:
+            HapticGenerator_Dump(*(reinterpret_cast<int32_t*>(cmdData)), context->param);
+            break;
+
         default:
             ALOGW("HapticGenerator_Command invalid command %u", cmdCode);
             return -EINVAL;
diff --git a/media/libheadtracking/SensorPoseProvider.cpp b/media/libheadtracking/SensorPoseProvider.cpp
index 8ebaf6e..e5e1521 100644
--- a/media/libheadtracking/SensorPoseProvider.cpp
+++ b/media/libheadtracking/SensorPoseProvider.cpp
@@ -174,7 +174,6 @@
     sp<Looper> mLooper;
     Listener* const mListener;
     SensorManager* const mSensorManager;
-    std::thread mThread;
     std::mutex mMutex;
     std::map<int32_t, SensorEnableGuard> mEnabledSensors;
     std::map<int32_t, SensorExtra> mEnabledSensorsExtra GUARDED_BY(mMutex);
@@ -187,11 +186,13 @@
     // the worker thread and that thread would notify, via the promise below whenever initialization
     // is finished, and whether it was successful.
     std::promise<bool> mInitPromise;
+    std::thread mThread;
 
     SensorPoseProviderImpl(const char* packageName, Listener* listener)
         : mListener(listener),
-          mSensorManager(&SensorManager::getInstanceForPackage(String16(packageName))),
-          mThread([this] { threadFunc(); }) {}
+          mSensorManager(&SensorManager::getInstanceForPackage(String16(packageName))) {
+        mThread = std::thread([this] { threadFunc(); });
+    }
 
     void initFinished(bool success) { mInitPromise.set_value(success); }
 
diff --git a/media/libheif/HeifDecoderImpl.cpp b/media/libheif/HeifDecoderImpl.cpp
index 1b8656d..691eede 100644
--- a/media/libheif/HeifDecoderImpl.cpp
+++ b/media/libheif/HeifDecoderImpl.cpp
@@ -344,19 +344,22 @@
     mFrameDecoded = false;
     mFrameMemory.clear();
 
-    mRetriever = new MediaMetadataRetriever();
-    status_t err = mRetriever->setDataSource(mDataSource, "image/heif");
+    sp<MediaMetadataRetriever> retriever = new MediaMetadataRetriever();
+    status_t err = retriever->setDataSource(mDataSource, "image/heif");
     if (err != OK) {
         ALOGE("failed to set data source!");
-
         mRetriever.clear();
         mDataSource.clear();
         return false;
     }
+    {
+        Mutex::Autolock _l(mRetrieverLock);
+        mRetriever = retriever;
+    }
     ALOGV("successfully set data source.");
 
-    const char* hasImage = mRetriever->extractMetadata(METADATA_KEY_HAS_IMAGE);
-    const char* hasVideo = mRetriever->extractMetadata(METADATA_KEY_HAS_VIDEO);
+    const char* hasImage = retriever->extractMetadata(METADATA_KEY_HAS_IMAGE);
+    const char* hasVideo = retriever->extractMetadata(METADATA_KEY_HAS_VIDEO);
 
     mHasImage = hasImage && !strcasecmp(hasImage, "yes");
     mHasVideo = hasVideo && !strcasecmp(hasVideo, "yes");
@@ -364,7 +367,7 @@
     HeifFrameInfo* defaultInfo = nullptr;
     if (mHasImage) {
         // image index < 0 to retrieve primary image
-        sp<IMemory> sharedMem = mRetriever->getImageAtIndex(
+        sp<IMemory> sharedMem = retriever->getImageAtIndex(
                 -1, mOutputColor, true /*metaOnly*/);
 
         if (sharedMem == nullptr || sharedMem->unsecurePointer() == nullptr) {
@@ -399,7 +402,7 @@
     }
 
     if (mHasVideo) {
-        sp<IMemory> sharedMem = mRetriever->getFrameAtTime(0,
+        sp<IMemory> sharedMem = retriever->getFrameAtTime(0,
                 MediaSource::ReadOptions::SEEK_PREVIOUS_SYNC,
                 mOutputColor, true /*metaOnly*/);
 
@@ -425,7 +428,7 @@
 
         initFrameInfo(&mSequenceInfo, videoFrame);
 
-        const char* frameCount = mRetriever->extractMetadata(METADATA_KEY_VIDEO_FRAME_COUNT);
+        const char* frameCount = retriever->extractMetadata(METADATA_KEY_VIDEO_FRAME_COUNT);
         if (frameCount == nullptr) {
             android_errorWriteWithInfoLog(0x534e4554, "215002587", -1, NULL, 0);
             ALOGD("No valid sequence information in metadata");
@@ -511,14 +514,27 @@
 }
 
 bool HeifDecoderImpl::decodeAsync() {
+    wp<MediaMetadataRetriever> weakRetriever;
+    {
+        Mutex::Autolock _l(mRetrieverLock);
+        weakRetriever = mRetriever;
+        mRetriever.clear();
+    }
+
     for (size_t i = 1; i < mNumSlices; i++) {
+        sp<MediaMetadataRetriever> retriever = weakRetriever.promote();
+        if (retriever == nullptr) {
+            return false;
+        }
+
         ALOGV("decodeAsync(): decoding slice %zu", i);
         size_t top = i * mSliceHeight;
         size_t bottom = (i + 1) * mSliceHeight;
         if (bottom > mImageInfo.mHeight) {
             bottom = mImageInfo.mHeight;
         }
-        sp<IMemory> frameMemory = mRetriever->getImageRectAtIndex(
+
+        sp<IMemory> frameMemory = retriever->getImageRectAtIndex(
                 -1, mOutputColor, 0, top, mImageInfo.mWidth, bottom);
         {
             Mutex::Autolock autolock(mLock);
@@ -534,9 +550,6 @@
             mScanlineReady.signal();
         }
     }
-    // Aggressive clear to avoid holding on to resources
-    mRetriever.clear();
-
     // Hold on to mDataSource in case the client wants to redecode.
     return false;
 }
@@ -549,6 +562,17 @@
         return true;
     }
 
+    sp<MediaMetadataRetriever> retriever;
+    {
+        Mutex::Autolock _l(mRetrieverLock);
+        if (mRetriever == nullptr) {
+            ALOGE("Failed to get MediaMetadataRetriever!");
+            return false;
+        }
+
+        retriever = mRetriever;
+    }
+
     // See if we want to decode in slices to allow client to start
     // scanline processing in parallel with decode. If this fails
     // we fallback to decoding the full frame.
@@ -563,7 +587,7 @@
 
         if (mNumSlices > 1) {
             // get first slice and metadata
-            sp<IMemory> frameMemory = mRetriever->getImageRectAtIndex(
+            sp<IMemory> frameMemory = retriever->getImageRectAtIndex(
                     -1, mOutputColor, 0, 0, mImageInfo.mWidth, mSliceHeight);
 
             if (frameMemory == nullptr || frameMemory->unsecurePointer() == nullptr) {
@@ -598,9 +622,9 @@
 
     if (mHasImage) {
         // image index < 0 to retrieve primary image
-        mFrameMemory = mRetriever->getImageAtIndex(-1, mOutputColor);
+        mFrameMemory = retriever->getImageAtIndex(-1, mOutputColor);
     } else if (mHasVideo) {
-        mFrameMemory = mRetriever->getFrameAtTime(0,
+        mFrameMemory = retriever->getFrameAtTime(0,
                 MediaSource::ReadOptions::SEEK_PREVIOUS_SYNC, mOutputColor);
     }
 
@@ -658,7 +682,17 @@
     // set total scanline to sequence height now
     mTotalScanline = mSequenceInfo.mHeight;
 
-    mFrameMemory = mRetriever->getFrameAtIndex(frameIndex, mOutputColor);
+    sp<MediaMetadataRetriever> retriever;
+    {
+        Mutex::Autolock _l(mRetrieverLock);
+        retriever = mRetriever;
+        if (retriever == nullptr) {
+            ALOGE("failed to get MediaMetadataRetriever!");
+            return false;
+        }
+    }
+
+    mFrameMemory = retriever->getFrameAtIndex(frameIndex, mOutputColor);
     if (mFrameMemory == nullptr || mFrameMemory->unsecurePointer() == nullptr) {
         ALOGE("decode: videoFrame is a nullptr");
         return false;
@@ -735,9 +769,9 @@
     HeifFrameInfo* info = &mImageInfo;
     if (info != nullptr) {
         return mImageInfo.mBitDepth;
+    } else {
+        return 0;
     }
-
-    return 0;
 }
 
 } // namespace android
diff --git a/media/libheif/HeifDecoderImpl.h b/media/libheif/HeifDecoderImpl.h
index 86a8628..c1504cd 100644
--- a/media/libheif/HeifDecoderImpl.h
+++ b/media/libheif/HeifDecoderImpl.h
@@ -72,6 +72,8 @@
     bool mHasVideo;
     size_t mSequenceLength;
 
+    Mutex mRetrieverLock;
+
     // Slice decoding only
     Mutex mLock;
     Condition mScanlineReady;
diff --git a/media/libheif/include/HeifDecoderAPI.h b/media/libheif/include/HeifDecoderAPI.h
index dc12486..56f4765 100644
--- a/media/libheif/include/HeifDecoderAPI.h
+++ b/media/libheif/include/HeifDecoderAPI.h
@@ -47,7 +47,7 @@
     int32_t  mRotationAngle;           // Rotation angle, clockwise, should be multiple of 90
     uint32_t mBytesPerPixel;           // Number of bytes for one pixel
     int64_t  mDurationUs;              // Duration of the frame in us
-    uint32_t mBitDepth;                // Number of bits for each of the R/G/B channels
+    uint32_t mBitDepth;                // Number of bits of R/G/B channel
     std::vector<uint8_t> mIccData;     // ICC data array
 };
 
@@ -164,7 +164,7 @@
     virtual size_t skipScanlines(size_t count) = 0;
 
     /*
-     * Returns color depth in bits for each of the R/G/B channels.
+     * Returns color depth of R/G/B channel.
      */
     virtual uint32_t getColorDepth() = 0;
 
diff --git a/media/libmedia/tests/codeclist/Android.bp b/media/libmedia/tests/codeclist/Android.bp
index 2ed3126..d4494f6 100644
--- a/media/libmedia/tests/codeclist/Android.bp
+++ b/media/libmedia/tests/codeclist/Android.bp
@@ -25,7 +25,7 @@
 
 cc_test {
     name: "CodecListTest",
-    test_suites: ["device-tests", "mts"],
+    test_suites: ["device-tests", "mts-media"],
     gtest: true,
 
     // Support multilib variants (using different suffix per sub-architecture), which is needed on
diff --git a/media/libmediaplayerservice/fuzzer/mediaplayer_fuzzer.cpp b/media/libmediaplayerservice/fuzzer/mediaplayer_fuzzer.cpp
index 7799f44..a189d04 100644
--- a/media/libmediaplayerservice/fuzzer/mediaplayer_fuzzer.cpp
+++ b/media/libmediaplayerservice/fuzzer/mediaplayer_fuzzer.cpp
@@ -26,6 +26,8 @@
 #include <media/IMediaRecorder.h>
 #include <media/IRemoteDisplay.h>
 #include <media/IRemoteDisplayClient.h>
+#include <media/MediaHTTPConnection.h>
+#include <media/MediaHTTPService.h>
 #include <media/stagefright/RemoteDataSource.h>
 #include <media/stagefright/foundation/base64.h>
 #include <thread>
@@ -102,6 +104,42 @@
     IBinder *onAsBinder() { return nullptr; };
 };
 
+struct TestMediaHTTPConnection : public MediaHTTPConnection {
+  public:
+    TestMediaHTTPConnection() {}
+    virtual ~TestMediaHTTPConnection() {}
+
+    virtual bool connect(const char* /*uri*/, const KeyedVector<String8, String8>* /*headers*/) {
+        return true;
+    }
+
+    virtual void disconnect() { return; }
+
+    virtual ssize_t readAt(off64_t /*offset*/, void* /*data*/, size_t size) { return size; }
+
+    virtual off64_t getSize() { return 0; }
+    virtual status_t getMIMEType(String8* /*mimeType*/) { return NO_ERROR; }
+    virtual status_t getUri(String8* /*uri*/) { return NO_ERROR; }
+
+  private:
+    DISALLOW_EVIL_CONSTRUCTORS(TestMediaHTTPConnection);
+};
+
+struct TestMediaHTTPService : public BnInterface<IMediaHTTPService> {
+  public:
+    TestMediaHTTPService() {}
+    ~TestMediaHTTPService(){};
+
+    virtual sp<MediaHTTPConnection> makeHTTPConnection() {
+        mMediaHTTPConnection = sp<TestMediaHTTPConnection>::make();
+        return mMediaHTTPConnection;
+    }
+
+  private:
+    sp<TestMediaHTTPConnection> mMediaHTTPConnection = nullptr;
+    DISALLOW_EVIL_CONSTRUCTORS(TestMediaHTTPService);
+};
+
 class BinderDeathNotifier : public IBinder::DeathRecipient {
    public:
     void binderDied(const wp<IBinder> &) { abort(); }
@@ -140,7 +178,9 @@
             AString out;
             encodeBase64(uriSuffix.data(), uriSuffix.size(), &out);
             uri += out.c_str();
-            status = mMediaPlayer->setDataSource(nullptr /*httpService*/, uri.c_str(), &headers);
+            sp<TestMediaHTTPService> testService = sp<TestMediaHTTPService>::make();
+            status =
+                    mMediaPlayer->setDataSource(testService /*httpService*/, uri.c_str(), &headers);
             break;
         }
         case fd: {
diff --git a/media/libnblog/Reader.cpp b/media/libnblog/Reader.cpp
index 67d028d..d6232d4 100644
--- a/media/libnblog/Reader.cpp
+++ b/media/libnblog/Reader.cpp
@@ -208,11 +208,14 @@
     }
     while (back + Entry::kPreviousLengthOffset >= front) {
         const uint8_t *prev = back - back[Entry::kPreviousLengthOffset] - Entry::kOverhead;
-        const Event type = (const Event)prev[offsetof(entry, type)];
         if (prev < front
-                || prev + prev[offsetof(entry, length)] + Entry::kOverhead != back
-                || type <= EVENT_RESERVED || type >= EVENT_UPPER_BOUND) {
-            // prev points to an out of limits or inconsistent entry
+                || prev + prev[offsetof(entry, length)] + Entry::kOverhead != back) {
+            // prev points to an out of limits entry
+            return nullptr;
+        }
+        const Event type = (const Event)prev[offsetof(entry, type)];
+        if (type <= EVENT_RESERVED || type >= EVENT_UPPER_BOUND) {
+            // prev points to an inconsistent entry
             return nullptr;
         }
         // if invalidTypes does not contain the type, then the type is valid.
diff --git a/media/libstagefright/FrameDecoder.cpp b/media/libstagefright/FrameDecoder.cpp
index ce4b4e6..6de112a 100644
--- a/media/libstagefright/FrameDecoder.cpp
+++ b/media/libstagefright/FrameDecoder.cpp
@@ -917,7 +917,7 @@
         return ERROR_MALFORMED;
     }
 
-    int32_t width, height, stride, srcFormat;
+    int32_t width, height, stride;
     if (outputFormat->findInt32("width", &width) == false) {
         ALOGE("MediaImageDecoder::onOutputReceived:width is missing in outputFormat");
         return ERROR_MALFORMED;
@@ -930,10 +930,9 @@
         ALOGE("MediaImageDecoder::onOutputReceived:stride is missing in outputFormat");
         return ERROR_MALFORMED;
     }
-    if (outputFormat->findInt32("color-format", &srcFormat) == false) {
-        ALOGE("MediaImageDecoder::onOutputReceived: color format is missing in outputFormat");
-        return ERROR_MALFORMED;
-    }
+
+    int32_t srcFormat;
+    CHECK(outputFormat->findInt32("color-format", &srcFormat));
 
     uint32_t bitDepth = 8;
     if (COLOR_FormatYUVP010 == srcFormat) {
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index 63d3180..9ff2177 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -155,6 +155,7 @@
     void bufferChunk(int64_t timestampUs);
     bool isAvc() const { return mIsAvc; }
     bool isHevc() const { return mIsHevc; }
+    bool isAv1() const { return mIsAv1; }
     bool isHeic() const { return mIsHeic; }
     bool isAudio() const { return mIsAudio; }
     bool isMPEG4() const { return mIsMPEG4; }
@@ -319,6 +320,7 @@
     volatile bool mStarted;
     bool mIsAvc;
     bool mIsHevc;
+    bool mIsAv1;
     bool mIsDovi;
     bool mIsAudio;
     bool mIsVideo;
@@ -467,6 +469,7 @@
     void writePaspBox();
     void writeAvccBox();
     void writeHvccBox();
+    void writeAv1cBox();
     void writeDoviConfigBox();
     void writeUrlBox();
     void writeDrefBox();
@@ -660,6 +663,8 @@
             return "avc1";
         } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime)) {
             return "hvc1";
+        } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_AV1, mime)) {
+            return "av01";
         }
     } else if (!strncasecmp(mime, "application/", 12)) {
         return "mett";
@@ -1541,6 +1546,15 @@
             writeFourcc("isom");
             writeFourcc("mp42");
         }
+        // If an AV1 video track is present, write "av01" as one of the
+        // compatible brands.
+        for (List<Track *>::iterator it = mTracks.begin(); it != mTracks.end();
+             ++it) {
+            if ((*it)->isAv1()) {
+                writeFourcc("av01");
+                break;
+            }
+        }
     }
 
     endBox();
@@ -2205,6 +2219,7 @@
     mMeta->findCString(kKeyMIMEType, &mime);
     mIsAvc = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC);
     mIsHevc = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_HEVC);
+    mIsAv1 = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AV1);
     mIsDovi = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_DOLBY_VISION);
     mIsAudio = !strncasecmp(mime, "audio/", 6);
     mIsVideo = !strncasecmp(mime, "video/", 6);
@@ -2639,6 +2654,8 @@
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_HEVC) ||
                !strcasecmp(mime, MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC)) {
         mMeta->findData(kKeyHVCC, &type, &data, &size);
+    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AV1)) {
+        mMeta->findData(kKeyAV1C, &type, &data, &size);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_DOLBY_VISION)) {
         getDolbyVisionProfile();
         if (!mMeta->findData(kKeyAVCC, &type, &data, &size) &&
@@ -4262,6 +4279,7 @@
         !strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime) ||
         !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime) ||
         !strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime) ||
+        !strcasecmp(MEDIA_MIMETYPE_VIDEO_AV1, mime) ||
         !strcasecmp(MEDIA_MIMETYPE_VIDEO_DOLBY_VISION, mime) ||
         !strcasecmp(MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC, mime)) {
         if (!mCodecSpecificData ||
@@ -4433,6 +4451,8 @@
         writeAvccBox();
     } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime)) {
         writeHvccBox();
+    } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_AV1, mime)) {
+        writeAv1cBox();
     } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_DOLBY_VISION, mime)) {
         if (mDoviProfile <= DolbyVisionProfileDvheSt) {
             writeHvccBox();
@@ -5000,6 +5020,15 @@
     mOwner->endBox();  // hvcC
 }
 
+void MPEG4Writer::Track::writeAv1cBox() {
+    CHECK(mCodecSpecificData);
+    CHECK_GE(mCodecSpecificDataSize, 4u);
+
+    mOwner->beginBox("av1C");
+    mOwner->write(mCodecSpecificData, mCodecSpecificDataSize);
+    mOwner->endBox();  // av1C
+}
+
 void MPEG4Writer::Track::writeDoviConfigBox() {
     CHECK_NE(mDoviProfile, 0u);
 
diff --git a/media/libstagefright/MediaClock.cpp b/media/libstagefright/MediaClock.cpp
index 24608a7..ed0819d 100644
--- a/media/libstagefright/MediaClock.cpp
+++ b/media/libstagefright/MediaClock.cpp
@@ -110,8 +110,12 @@
     if (mAnchorTimeRealUs != -1) {
         int64_t oldNowMediaUs =
             mAnchorTimeMediaUs + (nowUs - mAnchorTimeRealUs) * (double)mPlaybackRate;
-        if (nowMediaUs < oldNowMediaUs + kAnchorFluctuationAllowedUs
-                && nowMediaUs > oldNowMediaUs - kAnchorFluctuationAllowedUs) {
+        // earlier, we ensured that the anchor times are non-negative and the
+        // math to calculate the now/oldNow times stays non-negative.
+        // by casting into uint64_t, we gain headroom to avoid any overflows at the upper end
+        // when adding the fluctuation allowance.
+        if ((uint64_t)nowMediaUs < (uint64_t)oldNowMediaUs + kAnchorFluctuationAllowedUs
+                && (uint64_t)nowMediaUs + kAnchorFluctuationAllowedUs > (uint64_t)oldNowMediaUs) {
             return;
         }
     }
diff --git a/media/libstagefright/bqhelper/Android.bp b/media/libstagefright/bqhelper/Android.bp
index 0e2b472..a4f0fb3 100644
--- a/media/libstagefright/bqhelper/Android.bp
+++ b/media/libstagefright/bqhelper/Android.bp
@@ -12,6 +12,7 @@
     double_loadable: true,
 
     srcs: [
+        ":libgui_frame_event_aidl",
         "FrameDropper.cpp",
         "GraphicBufferSource.cpp",
     ],
diff --git a/media/libstagefright/data/media_codecs_google_c2_video.xml b/media/libstagefright/data/media_codecs_google_c2_video.xml
index 3509ef8..03d8b78 100644
--- a/media/libstagefright/data/media_codecs_google_c2_video.xml
+++ b/media/libstagefright/data/media_codecs_google_c2_video.xml
@@ -60,7 +60,7 @@
         <MediaCodec name="c2.android.vp8.decoder" type="video/x-vnd.on2.vp8">
             <Alias name="OMX.google.vp8.decoder" />
             <Limit name="size" min="2x2" max="2048x2048" />
-            <Limit name="alignment" value="2x2" />
+            <Limit name="alignment" value="1x1" />
             <Limit name="block-size" value="16x16" />
             <Limit name="block-count" range="1-16384" />
             <Limit name="blocks-per-second" range="1-1000000" />
@@ -70,7 +70,7 @@
         <MediaCodec name="c2.android.vp9.decoder" type="video/x-vnd.on2.vp9">
             <Alias name="OMX.google.vp9.decoder" />
             <Limit name="size" min="2x2" max="2048x2048" />
-            <Limit name="alignment" value="2x2" />
+            <Limit name="alignment" value="1x1" />
             <Limit name="block-size" value="16x16" />
             <Limit name="block-count" range="1-16384" />
             <Limit name="blocks-per-second" range="1-500000" />
diff --git a/media/libstagefright/data/media_codecs_sw.xml b/media/libstagefright/data/media_codecs_sw.xml
index d7e2d18..fb4f9a0 100644
--- a/media/libstagefright/data/media_codecs_sw.xml
+++ b/media/libstagefright/data/media_codecs_sw.xml
@@ -150,7 +150,7 @@
         <MediaCodec name="c2.android.vp8.decoder" type="video/x-vnd.on2.vp8" variant="slow-cpu,!slow-cpu">
             <Alias name="OMX.google.vp8.decoder" />
             <Limit name="size" min="2x2" max="2048x2048" />
-            <Limit name="alignment" value="2x2" />
+            <Limit name="alignment" value="1x1" />
             <Limit name="block-size" value="16x16" />
             <Variant name="!slow-cpu">
                 <Limit name="block-count" range="1-16384" />
@@ -166,7 +166,7 @@
         </MediaCodec>
         <MediaCodec name="c2.android.vp9.decoder" type="video/x-vnd.on2.vp9" variant="slow-cpu,!slow-cpu">
             <Alias name="OMX.google.vp9.decoder" />
-            <Limit name="alignment" value="2x2" />
+            <Limit name="alignment" value="1x1" />
             <Limit name="block-size" value="16x16" />
             <Variant name="!slow-cpu">
                 <Limit name="size" min="2x2" max="2048x2048" />
diff --git a/media/libstagefright/renderfright/tests/RenderEngineTest.cpp b/media/libstagefright/renderfright/tests/RenderEngineTest.cpp
index 2697ff4..3a67cc2 100644
--- a/media/libstagefright/renderfright/tests/RenderEngineTest.cpp
+++ b/media/libstagefright/renderfright/tests/RenderEngineTest.cpp
@@ -60,7 +60,7 @@
     }
 
     static sp<GraphicBuffer> allocateDefaultBuffer() {
-        return new GraphicBuffer(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT,
+        return sp<GraphicBuffer>::make(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT,
                                  HAL_PIXEL_FORMAT_RGBA_8888, 1,
                                  GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN |
                                          GRALLOC_USAGE_HW_RENDER,
@@ -69,7 +69,7 @@
 
     // Allocates a 1x1 buffer to fill with a solid color
     static sp<GraphicBuffer> allocateSourceBuffer(uint32_t width, uint32_t height) {
-        return new GraphicBuffer(width, height, HAL_PIXEL_FORMAT_RGBA_8888, 1,
+        return sp<GraphicBuffer>::make(width, height, HAL_PIXEL_FORMAT_RGBA_8888, 1,
                                  GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN |
                                          GRALLOC_USAGE_HW_TEXTURE,
                                  "input");
@@ -275,7 +275,7 @@
         renderengine::DisplaySettings settings;
         std::vector<const renderengine::LayerSettings*> layers;
         // Meaningless buffer since we don't do any drawing
-        sp<GraphicBuffer> buffer = new GraphicBuffer();
+        sp<GraphicBuffer> buffer = sp<GraphicBuffer>::make();
         invokeDraw(settings, layers, buffer);
     }
 
diff --git a/media/libstagefright/renderfright/tests/RenderEngineThreadedTest.cpp b/media/libstagefright/renderfright/tests/RenderEngineThreadedTest.cpp
index 97c7442..b82586b 100644
--- a/media/libstagefright/renderfright/tests/RenderEngineThreadedTest.cpp
+++ b/media/libstagefright/renderfright/tests/RenderEngineThreadedTest.cpp
@@ -70,7 +70,7 @@
 }
 
 TEST_F(RenderEngineThreadedTest, bindExternalBuffer_withBuffer) {
-    sp<GraphicBuffer> buf = new GraphicBuffer();
+    sp<GraphicBuffer> buf = sp<GraphicBuffer>::make();
     EXPECT_CALL(*mRenderEngine, bindExternalTextureBuffer(0, buf, Eq(nullptr)))
             .WillOnce(Return(NO_ERROR));
     status_t result = mThreadedRE->bindExternalTextureBuffer(0, buf, nullptr);
@@ -83,7 +83,7 @@
 }
 
 TEST_F(RenderEngineThreadedTest, cacheExternalTextureBuffer_withBuffer) {
-    sp<GraphicBuffer> buf = new GraphicBuffer();
+    sp<GraphicBuffer> buf = sp<GraphicBuffer>::make();
     EXPECT_CALL(*mRenderEngine, cacheExternalTextureBuffer(buf));
     mThreadedRE->cacheExternalTextureBuffer(buf);
 }
@@ -198,7 +198,7 @@
 TEST_F(RenderEngineThreadedTest, drawLayers) {
     renderengine::DisplaySettings settings;
     std::vector<const renderengine::LayerSettings*> layers;
-    sp<GraphicBuffer> buffer = new GraphicBuffer();
+    sp<GraphicBuffer> buffer = sp<GraphicBuffer>::make();
     base::unique_fd bufferFence;
     base::unique_fd drawFence;
 
diff --git a/media/libstagefright/rtsp/AAVCAssembler.cpp b/media/libstagefright/rtsp/AAVCAssembler.cpp
index 2f516d5..ddf797c 100644
--- a/media/libstagefright/rtsp/AAVCAssembler.cpp
+++ b/media/libstagefright/rtsp/AAVCAssembler.cpp
@@ -618,13 +618,14 @@
 
 int32_t AAVCAssembler::pickStartSeq(const Queue *queue,
         uint32_t first, int64_t play, int64_t jit) {
+    CHECK(!queue->empty());
     // pick the first sequence number has the start bit.
     sp<ABuffer> buffer = *(queue->begin());
     int32_t firstSeqNo = buffer->int32Data();
 
     // This only works for FU-A type & non-start sequence
-    unsigned nalType = buffer->data()[0] & 0x1f;
-    if (nalType != 28 || buffer->data()[1] & 0x80) {
+    int32_t nalType = buffer->size() >= 1 ? buffer->data()[0] & 0x1f : -1;
+    if (nalType != 28 || (buffer->size() >= 2 && buffer->data()[1] & 0x80)) {
         return firstSeqNo;
     }
 
@@ -634,7 +635,7 @@
         if (rtpTime + jit >= play) {
             break;
         }
-        if ((data[1] & 0x80)) {
+        if (it->size() >= 2 && (data[1] & 0x80)) {
             const int32_t seqNo = it->int32Data();
             ALOGE("finding [HEAD] pkt. \t Seq# (%d ~ )[%d", firstSeqNo, seqNo);
             firstSeqNo = seqNo;
diff --git a/media/ndk/NdkImage.cpp b/media/ndk/NdkImage.cpp
index 12a0d53..0bdb41b 100644
--- a/media/ndk/NdkImage.cpp
+++ b/media/ndk/NdkImage.cpp
@@ -24,6 +24,7 @@
 
 #include <android_media_Utils.h>
 #include <private/android/AHardwareBufferHelpers.h>
+#include <ui/PublicFormat.h>
 #include <utils/Log.h>
 
 using namespace android;
@@ -34,6 +35,8 @@
         int64_t timestamp, int32_t width, int32_t height, int32_t numPlanes) :
         mReader(reader), mFormat(format), mUsage(usage), mBuffer(buffer), mLockedBuffer(nullptr),
         mTimestamp(timestamp), mWidth(width), mHeight(height), mNumPlanes(numPlanes) {
+    PublicFormat publicFormat = static_cast<PublicFormat>(format);
+    mHalDataSpace = mapPublicFormatToHalDataspace(publicFormat);
     LOG_FATAL_IF(reader == nullptr, "AImageReader shouldn't be null while creating AImage");
 }
 
@@ -156,6 +159,20 @@
     return AMEDIA_OK;
 }
 
+media_status_t
+AImage::getDataSpace(android_dataspace* dataSpace) const {
+    if (dataSpace == nullptr) {
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+    *dataSpace = static_cast<android_dataspace>(-1);
+    if (isClosed()) {
+        ALOGE("%s: image %p has been closed!", __FUNCTION__, this);
+        return AMEDIA_ERROR_INVALID_OBJECT;
+    }
+    *dataSpace = mHalDataSpace;
+    return AMEDIA_OK;
+}
+
 media_status_t AImage::lockImage() {
     if (mBuffer == nullptr || mBuffer->mGraphicBuffer == nullptr) {
         LOG_ALWAYS_FATAL("%s: AImage %p has no buffer.", __FUNCTION__, this);
@@ -762,3 +779,15 @@
     }
     return image->getHardwareBuffer(buffer);
 }
+
+EXPORT
+media_status_t AImage_getDataSpace(
+    const AImage* image, /*out*/int32_t* dataSpace) {
+    ALOGV("%s", __FUNCTION__);
+
+    if (image == nullptr || dataSpace == nullptr) {
+        ALOGE("%s: bad argument. image %p dataSpace %p", __FUNCTION__, image, dataSpace);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+    return image->getDataSpace((android_dataspace*)(dataSpace));
+}
\ No newline at end of file
diff --git a/media/ndk/NdkImagePriv.h b/media/ndk/NdkImagePriv.h
index 05115b9..dc10a6a 100644
--- a/media/ndk/NdkImagePriv.h
+++ b/media/ndk/NdkImagePriv.h
@@ -82,6 +82,7 @@
     media_status_t getPlaneRowStride(int planeIdx, /*out*/int32_t* rowStride) const;
     media_status_t getPlaneData(int planeIdx,/*out*/uint8_t** data, /*out*/int* dataLength) const;
     media_status_t getHardwareBuffer(/*out*/AHardwareBuffer** buffer) const;
+    media_status_t getDataSpace(/*out*/android_dataspace* dataSpace) const;
 
   private:
     // AImage should be deleted through free() API.
@@ -101,6 +102,7 @@
     const int32_t              mWidth;
     const int32_t              mHeight;
     const int32_t              mNumPlanes;
+    android_dataspace          mHalDataSpace = HAL_DATASPACE_UNKNOWN;
     bool                       mIsClosed = false;
     mutable Mutex              mLock;
 };
diff --git a/media/ndk/NdkImageReader.cpp b/media/ndk/NdkImageReader.cpp
index 1067e24..ac5cba8 100644
--- a/media/ndk/NdkImageReader.cpp
+++ b/media/ndk/NdkImageReader.cpp
@@ -46,6 +46,9 @@
 
 static constexpr int kWindowHalTokenSizeMax = 256;
 
+static media_status_t validateParameters(int32_t width, int32_t height, int32_t format,
+                                         uint64_t usage, int32_t maxImages,
+                                         /*out*/ AImageReader**& reader);
 static native_handle_t *convertHalTokenToNativeHandle(const HalToken &halToken);
 
 bool
@@ -263,13 +266,17 @@
                            int32_t height,
                            int32_t format,
                            uint64_t usage,
-                           int32_t maxImages)
+                           int32_t maxImages,
+                           uint32_t hardwareBufferFormat,
+                           android_dataspace dataSpace)
     : mWidth(width),
       mHeight(height),
       mFormat(format),
       mUsage(usage),
       mMaxImages(maxImages),
       mNumPlanes(getNumPlanesForFormat(format)),
+      mHalFormat(hardwareBufferFormat),
+      mHalDataSpace(dataSpace),
       mFrameListener(new FrameListener(this)),
       mBufferRemovedListener(new BufferRemovedListener(this)) {}
 
@@ -280,9 +287,6 @@
 
 media_status_t
 AImageReader::init() {
-    PublicFormat publicFormat = static_cast<PublicFormat>(mFormat);
-    mHalFormat = mapPublicFormatToHalFormat(publicFormat);
-    mHalDataSpace = mapPublicFormatToHalDataspace(publicFormat);
     mHalUsage = AHardwareBuffer_convertToGrallocUsageBits(mUsage);
 
     sp<IGraphicBufferProducer> gbProducer;
@@ -646,6 +650,41 @@
     }
 }
 
+static
+media_status_t validateParameters(int32_t width, int32_t height, int32_t format,
+                                  uint64_t usage, int32_t maxImages,
+                                  /*out*/ AImageReader**& reader) {
+    if (reader == nullptr) {
+        ALOGE("%s: reader argument is null", __FUNCTION__);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
+    if (width < 1 || height < 1) {
+        ALOGE("%s: image dimension must be positive: w:%d h:%d",
+                __FUNCTION__, width, height);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
+    if (maxImages < 1) {
+        ALOGE("%s: max outstanding image count must be at least 1 (%d)",
+                __FUNCTION__, maxImages);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
+    if (maxImages > BufferQueueDefs::NUM_BUFFER_SLOTS) {
+        ALOGE("%s: max outstanding image count (%d) cannot be larget than %d.",
+              __FUNCTION__, maxImages, BufferQueueDefs::NUM_BUFFER_SLOTS);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
+    if (!AImageReader::isSupportedFormatAndUsage(format, usage)) {
+        ALOGE("%s: format %d is not supported with usage 0x%" PRIx64 " by AImageReader",
+                __FUNCTION__, format, usage);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+    return AMEDIA_OK;
+}
+
 static native_handle_t *convertHalTokenToNativeHandle(
         const HalToken &halToken) {
     // We attempt to store halToken in the ints of the native_handle_t after its
@@ -696,42 +735,32 @@
 } //extern "C"
 
 EXPORT
+media_status_t AImageReader_newWithDataSpace(
+        int32_t width, int32_t height, uint64_t usage, int32_t maxImages,
+        uint32_t hardwareBufferFormat, int32_t dataSpace,
+        /*out*/ AImageReader** reader) {
+    ALOGV("%s", __FUNCTION__);
+
+    android_dataspace halDataSpace = static_cast<android_dataspace>(dataSpace);
+    int32_t format = static_cast<int32_t>(
+          mapHalFormatDataspaceToPublicFormat(hardwareBufferFormat, halDataSpace));
+    return AImageReader_newWithUsage(width, height, format, usage, maxImages, reader);
+}
+
+EXPORT
 media_status_t AImageReader_newWithUsage(
         int32_t width, int32_t height, int32_t format, uint64_t usage,
         int32_t maxImages, /*out*/ AImageReader** reader) {
     ALOGV("%s", __FUNCTION__);
 
-    if (width < 1 || height < 1) {
-        ALOGE("%s: image dimension must be positive: w:%d h:%d",
-                __FUNCTION__, width, height);
-        return AMEDIA_ERROR_INVALID_PARAMETER;
-    }
+    validateParameters(width, height, format, usage, maxImages, reader);
 
-    if (maxImages < 1) {
-        ALOGE("%s: max outstanding image count must be at least 1 (%d)",
-                __FUNCTION__, maxImages);
-        return AMEDIA_ERROR_INVALID_PARAMETER;
-    }
-
-    if (maxImages > BufferQueueDefs::NUM_BUFFER_SLOTS) {
-        ALOGE("%s: max outstanding image count (%d) cannot be larget than %d.",
-              __FUNCTION__, maxImages, BufferQueueDefs::NUM_BUFFER_SLOTS);
-        return AMEDIA_ERROR_INVALID_PARAMETER;
-    }
-
-    if (!AImageReader::isSupportedFormatAndUsage(format, usage)) {
-        ALOGE("%s: format %d is not supported with usage 0x%" PRIx64 " by AImageReader",
-                __FUNCTION__, format, usage);
-        return AMEDIA_ERROR_INVALID_PARAMETER;
-    }
-
-    if (reader == nullptr) {
-        ALOGE("%s: reader argument is null", __FUNCTION__);
-        return AMEDIA_ERROR_INVALID_PARAMETER;
-    }
+    PublicFormat publicFormat = static_cast<PublicFormat>(format);
+    uint32_t halFormat = mapPublicFormatToHalFormat(publicFormat);
+    android_dataspace halDataSpace = mapPublicFormatToHalDataspace(publicFormat);
 
     AImageReader* tmpReader = new AImageReader(
-        width, height, format, usage, maxImages);
+        width, height, format, usage, maxImages, halFormat, halDataSpace);
     if (tmpReader == nullptr) {
         ALOGE("%s: AImageReader allocation failed", __FUNCTION__);
         return AMEDIA_ERROR_UNKNOWN;
diff --git a/media/ndk/NdkImageReaderPriv.h b/media/ndk/NdkImageReaderPriv.h
index 37c606e..0199616 100644
--- a/media/ndk/NdkImageReaderPriv.h
+++ b/media/ndk/NdkImageReaderPriv.h
@@ -56,10 +56,12 @@
                  int32_t height,
                  int32_t format,
                  uint64_t usage,
-                 int32_t maxImages);
+                 int32_t maxImages,
+                 uint32_t hardwareBufferFormat,
+                 android_dataspace dataSpace);
     ~AImageReader();
 
-    // Inintialize AImageReader, uninitialized or failed to initialize AImageReader
+    // Initialize AImageReader, uninitialized or failed to initialize AImageReader
     // should never be passed to application
     media_status_t init();
 
@@ -79,7 +81,6 @@
     void           close();
 
   private:
-
     friend struct AImage; // for grabing reader lock
 
     BufferItem* getBufferItemLocked();
@@ -118,13 +119,16 @@
 
     const int32_t mWidth;
     const int32_t mHeight;
-    const int32_t mFormat;
+    int32_t mFormat;
     const uint64_t mUsage;  // AHARDWAREBUFFER_USAGE_* flags.
     const int32_t mMaxImages;
 
     // TODO(jwcai) Seems completely unused in AImageReader class.
     const int32_t mNumPlanes;
 
+    uint32_t mHalFormat = AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM;
+    android_dataspace mHalDataSpace = HAL_DATASPACE_UNKNOWN;
+
     struct FrameListener : public ConsumerBase::FrameAvailableListener {
       public:
         explicit FrameListener(AImageReader* parent) : mReader(parent) {}
@@ -155,8 +159,6 @@
     };
     sp<BufferRemovedListener> mBufferRemovedListener;
 
-    int mHalFormat;
-    android_dataspace mHalDataSpace;
     uint64_t mHalUsage;
 
     sp<IGraphicBufferProducer> mProducer;
diff --git a/media/ndk/fuzzer/Android.bp b/media/ndk/fuzzer/Android.bp
new file mode 100644
index 0000000..b2ae220
--- /dev/null
+++ b/media/ndk/fuzzer/Android.bp
@@ -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.
+ */
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_av_media_ndk_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_av_media_ndk_license"],
+}
+
+cc_defaults {
+     name: "libmediandk_fuzzer_defaults",
+     shared_libs: [
+        "libandroid_runtime_lazy",
+        "libbase",
+        "libdatasource",
+        "libmedia",
+        "libmediadrm",
+        "libmedia_omx",
+        "libmedia_jni_utils",
+        "libstagefright",
+        "libstagefright_foundation",
+        "liblog",
+        "libutils",
+        "libcutils",
+        "libnativewindow",
+        "libhidlbase",
+        "libgui",
+        "libui",
+        "libmediandk",
+     ],
+     static_libs: [
+        "libmediandk_utils",
+        "libnativehelper_lazy",
+     ],
+     header_libs: [
+         "media_ndk_headers",
+     ],
+     fuzz_config: {
+        cc: [
+            "android-media-fuzzing-reports@google.com",
+        ],
+        componentid: 155276,
+    },
+}
+
+cc_fuzz {
+    name: "ndk_crypto_fuzzer",
+    srcs: ["ndk_crypto_fuzzer.cpp"],
+    defaults: ["libmediandk_fuzzer_defaults"],
+}
diff --git a/media/ndk/fuzzer/README.md b/media/ndk/fuzzer/README.md
new file mode 100644
index 0000000..4f78e4a
--- /dev/null
+++ b/media/ndk/fuzzer/README.md
@@ -0,0 +1,24 @@
+# Fuzzers for libmediandk
+
+## Table of contents
++ [ndk_crypto_fuzzer](#NdkCrypto)
+
+# <a name="NdkCrypto"></a> Fuzzer for NdkCrypto
+
+NdkCrypto supports the following parameters:
+    UniversalIdentifier (parameter name: "uuid")
+
+| Parameter| Valid Values |Configured Value|
+|-------------|----------|----- |
+| `uuid`| `Array`| Value obtained from FuzzedDataProvider|
+
+#### Steps to run
+1. Build the fuzzer
+```
+  $ mm -j$(nproc) ndk_crypto_fuzzer
+```
+2. Run on device
+```
+  $ adb sync data
+  $ adb shell /data/fuzz/arm64/ndk_crypto_fuzzer/ndk_crypto_fuzzer
+```
diff --git a/media/ndk/fuzzer/ndk_crypto_fuzzer.cpp b/media/ndk/fuzzer/ndk_crypto_fuzzer.cpp
new file mode 100644
index 0000000..2b22f0f
--- /dev/null
+++ b/media/ndk/fuzzer/ndk_crypto_fuzzer.cpp
@@ -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.
+ */
+
+#include <fuzzer/FuzzedDataProvider.h>
+#include <media/NdkMediaCrypto.h>
+
+constexpr size_t kMaxString = 256;
+constexpr size_t kMinBytes = 0;
+constexpr size_t kMaxBytes = 1000;
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+    FuzzedDataProvider fdp(data, size);
+    AMediaUUID uuid = {};
+    int32_t maxLen = fdp.ConsumeIntegralInRange<size_t>(kMinBytes, (size_t)sizeof(AMediaUUID));
+    for (size_t idx = 0; idx < maxLen; ++idx) {
+        uuid[idx] = fdp.ConsumeIntegral<uint8_t>();
+    }
+    std::vector<uint8_t> initData =
+            fdp.ConsumeBytes<uint8_t>(fdp.ConsumeIntegralInRange<size_t>(kMinBytes, kMaxBytes));
+    AMediaCrypto* crypto = AMediaCrypto_new(uuid, initData.data(), initData.size());
+    while (fdp.remaining_bytes()) {
+        auto invokeNdkCryptoFuzzer = fdp.PickValueInArray<const std::function<void()>>({
+                [&]() {
+                    AMediaCrypto_requiresSecureDecoderComponent(
+                            fdp.ConsumeRandomLengthString(kMaxString).c_str());
+                },
+                [&]() { AMediaCrypto_isCryptoSchemeSupported(uuid); },
+        });
+        invokeNdkCryptoFuzzer();
+    }
+    AMediaCrypto_delete(crypto);
+    return 0;
+}
diff --git a/media/ndk/include/media/NdkImage.h b/media/ndk/include/media/NdkImage.h
index 71bc6d9..814a327 100644
--- a/media/ndk/include/media/NdkImage.h
+++ b/media/ndk/include/media/NdkImage.h
@@ -583,7 +583,7 @@
  * Available since API level 24.
  *
  * @param image the {@link AImage} of interest.
- * @param width the width of the image will be filled here if the method call succeeeds.
+ * @param width the width of the image will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -599,7 +599,7 @@
  * Available since API level 24.
  *
  * @param image the {@link AImage} of interest.
- * @param height the height of the image will be filled here if the method call succeeeds.
+ * @param height the height of the image will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -617,7 +617,7 @@
  * Available since API level 24.
  *
  * @param image the {@link AImage} of interest.
- * @param format the format of the image will be filled here if the method call succeeeds.
+ * @param format the format of the image will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -636,7 +636,7 @@
  * Available since API level 24.
  *
  * @param image the {@link AImage} of interest.
- * @param rect the cropped rectangle of the image will be filled here if the method call succeeeds.
+ * @param rect the cropped rectangle of the image will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -662,7 +662,7 @@
  * Available since API level 24.
  *
  * @param image the {@link AImage} of interest.
- * @param timestampNs the timestamp of the image will be filled here if the method call succeeeds.
+ * @param timestampNs the timestamp of the image will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -682,7 +682,7 @@
  *
  * @param image the {@link AImage} of interest.
  * @param numPlanes the number of planes of the image will be filled here if the method call
- *         succeeeds.
+ *         succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -706,7 +706,7 @@
  *
  * @param image the {@link AImage} of interest.
  * @param planeIdx the index of the plane. Must be less than the number of planes of input image.
- * @param pixelStride the pixel stride of the image will be filled here if the method call succeeeds.
+ * @param pixelStride the pixel stride of the image will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -735,7 +735,7 @@
  *
  * @param image the {@link AImage} of interest.
  * @param planeIdx the index of the plane. Must be less than the number of planes of input image.
- * @param rowStride the row stride of the image will be filled here if the method call succeeeds.
+ * @param rowStride the row stride of the image will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -762,8 +762,8 @@
  *
  * @param image the {@link AImage} of interest.
  * @param planeIdx the index of the plane. Must be less than the number of planes of input image.
- * @param data the data pointer of the image will be filled here if the method call succeeeds.
- * @param dataLength the valid length of data will be filled here if the method call succeeeds.
+ * @param data the data pointer of the image will be filled here if the method call succeeds.
+ * @param dataLength the valid length of data will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -826,6 +826,25 @@
  */
 media_status_t AImage_getHardwareBuffer(const AImage* image, /*out*/AHardwareBuffer** buffer) __INTRODUCED_IN(26);
 
+/**
+ * Query the dataspace of the input {@link AImage}.
+ *
+ * Available since API level 33.
+ *
+ * @param image the {@link AImage} of interest.
+ * @param dataSpace the dataspace of the image will be filled here if the method call succeeds.
+ *                  This must be one of the ADATASPACE_* enum value defined in
+ *                  {@link ADataSpace}.
+ *
+ * @return <ul>
+ *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
+ *         <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if image or dataSpace is NULL.</li>
+ *         <li>{@link AMEDIA_ERROR_INVALID_OBJECT} if the {@link AImageReader} generated this
+ *                 image has been deleted.</li></ul>
+ */
+media_status_t AImage_getDataSpace(const AImage* image,
+                                   /*out*/int32_t* dataSpace) __INTRODUCED_IN(33);
+
 __END_DECLS
 
 #endif //_NDK_IMAGE_H
diff --git a/media/ndk/include/media/NdkImageReader.h b/media/ndk/include/media/NdkImageReader.h
index 4bd7f2a..992955b 100644
--- a/media/ndk/include/media/NdkImageReader.h
+++ b/media/ndk/include/media/NdkImageReader.h
@@ -79,7 +79,7 @@
  *            by the user, one of them has to be released before a new {@link AImage} will become
  *            available for access through {@link AImageReader_acquireLatestImage} or
  *            {@link AImageReader_acquireNextImage}. Must be greater than 0.
- * @param reader The created image reader will be filled here if the method call succeeeds.
+ * @param reader The created image reader will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -133,7 +133,7 @@
  * Available since API level 24.
  *
  * @param reader The image reader of interest.
- * @param width the default width of the reader will be filled here if the method call succeeeds.
+ * @param width the default width of the reader will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -151,7 +151,7 @@
  * Available since API level 24.
  *
  * @param reader The image reader of interest.
- * @param height the default height of the reader will be filled here if the method call succeeeds.
+ * @param height the default height of the reader will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -165,7 +165,7 @@
  * Available since API level 24.
  *
  * @param reader The image reader of interest.
- * @param format the fromat of the reader will be filled here if the method call succeeeds. The
+ * @param format the format of the reader will be filled here if the method call succeeds. The
  *                value will be one of the AIMAGE_FORMAT_* enum value defiend in {@link NdkImage.h}.
  *
  * @return <ul>
@@ -181,7 +181,7 @@
  *
  * @param reader The image reader of interest.
  * @param maxImages the maximum number of concurrently acquired images of the reader will be filled
- *                here if the method call succeeeds.
+ *                here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -212,7 +212,7 @@
  * Available since API level 24.
  *
  * @param reader The image reader of interest.
- * @param image the acquired {@link AImage} will be filled here if the method call succeeeds.
+ * @param image the acquired {@link AImage} will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -257,7 +257,7 @@
  * Available since API level 24.
  *
  * @param reader The image reader of interest.
- * @param image the acquired {@link AImage} will be filled here if the method call succeeeds.
+ * @param image the acquired {@link AImage} will be filled here if the method call succeeds.
  *
  * @return <ul>
  *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
@@ -387,6 +387,44 @@
         /*out*/ AImageReader** reader) __INTRODUCED_IN(26);
 
 /**
+ * AImageReader constructor similar to {@link AImageReader_newWithUsage} that takes
+ * two additional parameters to build the format of the Image. All other parameters
+ * and the return values are identical to those passed to {@link AImageReader_newWithUsage}.
+ *
+ * <p>Instead of passing {@code format} parameter, this constructor accepts
+ * the combination of {@code hardwareBufferFormat} and {@code dataSpace} for the
+ * format of the Image that the reader will produce.</p>
+ *
+ * Available since API level 33.
+ *
+ * @param width The default width in pixels of the Images that this reader will produce.
+ * @param height The default height in pixels of the Images that this reader will produce.
+ * @param usage specifies how the consumer will access the AImage.
+ *              See {@link AImageReader_newWithUsage} parameter description for more details.
+ * @param maxImages The maximum number of images the user will want to access simultaneously.
+ *                  See {@link AImageReader_newWithUsage} parameter description for more details.
+ * @param hardwareBufferFormat The hardware buffer format passed by the producer.
+ *                             This must be one of the AHARDWAREBUFFER_FORMAT_* enum values defined
+ *                             in {@link hardware_buffer.h}.
+ * @param dataSpace The dataspace of the Image passed by the producer.
+ *                  This must be one of the ADATASPACE_* enum values defined in
+ *                  {@link ADataSpace}.
+ * @param reader The created image reader will be filled here if the method call succeeds.
+ *
+ * @return <ul>
+ *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
+ *         <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader is NULL, or one or more of width,
+ *                 height, maxImages, hardwareBufferFormat or dataSpace arguments
+ *                 is not supported.</li>
+ *         <li>{@link AMEDIA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ *
+ * @see AImageReader_newWithUsage
+ */
+media_status_t AImageReader_newWithDataSpace(int32_t width, int32_t height, uint64_t usage,
+        int32_t maxImages, uint32_t hardwareBufferFormat, int32_t dataSpace,
+        /*out*/ AImageReader** reader) __INTRODUCED_IN(33);
+
+/**
  * Acquire the next {@link AImage} from the image reader's queue asynchronously.
  *
  * <p>AImageReader acquire method similar to {@link AImageReader_acquireNextImage} that takes an
diff --git a/media/ndk/libmediandk.map.txt b/media/ndk/libmediandk.map.txt
index c8faced..bac4b22 100644
--- a/media/ndk/libmediandk.map.txt
+++ b/media/ndk/libmediandk.map.txt
@@ -13,11 +13,13 @@
     AImageReader_getWindow; # introduced=24
     AImageReader_new; # introduced=24
     AImageReader_newWithUsage; # introduced=26
+    AImageReader_newWithDataSpace; # introduced=Tiramisu
     AImageReader_setBufferRemovedListener; # introduced=26
     AImageReader_setImageListener; # introduced=24
     AImage_delete; # introduced=24
     AImage_deleteAsync; # introduced=26
     AImage_getCropRect; # introduced=24
+    AImage_getDataSpace; # introduced=Tiramisu
     AImage_getFormat; # introduced=24
     AImage_getHardwareBuffer; # introduced=26
     AImage_getHeight; # introduced=24
diff --git a/media/utils/Android.bp b/media/utils/Android.bp
index a38ef57..04d9ed9 100644
--- a/media/utils/Android.bp
+++ b/media/utils/Android.bp
@@ -21,23 +21,76 @@
     default_applicable_licenses: ["frameworks_av_license"],
 }
 
-cc_library {
-    name: "libmediautils",
+cc_defaults {
+    name: "libmediautils_defaults",
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-Wextra",
+    ],
+}
 
+filegroup {
+    name: "libmediautils_core_srcs",
     srcs: [
         "AImageReaderUtils.cpp",
-        "BatteryNotifier.cpp",
         "ISchedulingPolicyService.cpp",
         "Library.cpp",
-        "LimitProcessMemory.cpp",
         "MediaUtilsDelayed.cpp",
-        "MemoryLeakTrackUtil.cpp",
         "MethodStatistics.cpp",
         "Process.cpp",
-        "ProcessInfo.cpp",
         "SchedulingPolicyService.cpp",
-        "ServiceUtilities.cpp",
         "ThreadSnapshot.cpp",
+    ],
+}
+
+cc_library_headers {
+    name: "libmediautils_headers",
+    host_supported: true,
+    vendor_available: true, // required for platform/hardware/interfaces
+    shared_libs: [
+        "liblog",
+    ],
+    local_include_dirs: ["include"],
+    export_include_dirs: ["include"],
+}
+
+cc_library {
+    name: "libmediautils_core",
+    defaults: ["libmediautils_defaults"],
+    host_supported: true,
+    srcs: [":libmediautils_core_srcs"],
+    shared_libs: [
+        "libaudioutils", // for clock.h, Statistics.h
+        "libbase",
+        "libbinder",
+        "libhidlbase",
+        "liblog",
+        "libpermission",
+        "libutils",
+        "android.hardware.graphics.bufferqueue@1.0",
+        "android.hidl.token@1.0-utils",
+        "packagemanager_aidl-cpp",
+    ],
+
+    export_shared_lib_headers: [
+        "libpermission",
+    ],
+
+    local_include_dirs: ["include"],
+    export_include_dirs: ["include"],
+}
+
+cc_library {
+    name: "libmediautils",
+    defaults: ["libmediautils_defaults"],
+    srcs: [
+        ":libmediautils_core_srcs",
+        "BatteryNotifier.cpp",
+        "MemoryLeakTrackUtil.cpp",
+        "LimitProcessMemory.cpp",
+        "ProcessInfo.cpp",
+        "ServiceUtilities.cpp",
         "TimeCheck.cpp",
         "TimerThread.cpp",
     ],
@@ -49,12 +102,13 @@
     shared_libs: [
         "libaudioclient_aidl_conversion",
         "libaudioutils", // for clock.h, Statistics.h
+        "libbase",
         "libbinder",
         "libcutils",
-        "liblog",
-        "libutils",
         "libhidlbase",
+        "liblog",
         "libpermission",
+        "libutils",
         "android.hardware.graphics.bufferqueue@1.0",
         "android.hidl.token@1.0-utils",
         "packagemanager_aidl-cpp",
@@ -65,12 +119,6 @@
 
     logtags: ["EventLogTags.logtags"],
 
-    cflags: [
-        "-Wall",
-        "-Wextra",
-        "-Werror",
-    ],
-
     header_libs: [
         "bionic_libc_platform_headers",
         "libmedia_headers",
@@ -81,7 +129,7 @@
     ],
 
     required: [
-        "libmediautils_delayed",  // lazy loaded
+        "libmediautils_delayed", // lazy loaded
     ],
 
     include_dirs: [
@@ -94,14 +142,10 @@
 
 cc_library {
     name: "libmediautils_delayed", // match with MEDIAUTILS_DELAYED_LIBRARY_NAME
+    defaults: ["libmediautils_defaults"],
     srcs: [
         "MediaUtilsDelayedLibrary.cpp",
     ],
-    cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wextra",
-    ],
     shared_libs: [
         "liblog",
         "libutils",
@@ -111,16 +155,12 @@
 
 cc_library {
     name: "libmediautils_vendor",
-    vendor_available: true,  // required for platform/hardware/interfaces
+    defaults: ["libmediautils_defaults"],
+    vendor_available: true, // required for platform/hardware/interfaces
     srcs: [
         "MemoryLeakTrackUtil.cpp",
     ],
 
-    cflags: [
-        "-Wall",
-        "-Wextra",
-        "-Werror",
-    ],
     shared_libs: [
         "liblog",
         "libutils",
@@ -137,23 +177,3 @@
     local_include_dirs: ["include"],
     export_include_dirs: ["include"],
 }
-
-
-cc_library_headers {
-    name: "libmediautils_headers",
-    vendor_available: true,  // required for platform/hardware/interfaces
-
-    export_include_dirs: ["include"],
-}
-
-cc_test {
-    name: "libmediautils_test",
-    srcs: [
-        "memory-test.cpp",
-        "TimerThread-test.cpp",
-    ],
-    shared_libs: [
-      "libmediautils",
-      "libutils",
-    ]
-}
diff --git a/media/utils/MethodStatistics.cpp b/media/utils/MethodStatistics.cpp
index b179b20..086757b 100644
--- a/media/utils/MethodStatistics.cpp
+++ b/media/utils/MethodStatistics.cpp
@@ -22,7 +22,8 @@
 
 std::shared_ptr<std::vector<std::string>>
 getStatisticsClassesForModule(std::string_view moduleName) {
-    static const std::map<std::string, std::shared_ptr<std::vector<std::string>>> m {
+    static const std::map<std::string, std::shared_ptr<std::vector<std::string>>,
+            std::less<> /* transparent comparator */> m {
         {
             METHOD_STATISTICS_MODULE_NAME_AUDIO_HIDL,
             std::shared_ptr<std::vector<std::string>>(
@@ -34,13 +35,14 @@
               })
         },
     };
-    auto it = m.find({moduleName.begin(), moduleName.end()});
+    auto it = m.find(moduleName);
     if (it == m.end()) return {};
     return it->second;
 }
 
 static void addClassesToMap(const std::shared_ptr<std::vector<std::string>> &classNames,
-        std::map<std::string, std::shared_ptr<MethodStatistics<std::string>>> &map) {
+        std::map<std::string, std::shared_ptr<MethodStatistics<std::string>>,
+                std::less<> /* transparent comparator */> &map) {
     if (classNames) {
         for (const auto& className : *classNames) {
             map.emplace(className, std::make_shared<MethodStatistics<std::string>>());
@@ -51,17 +53,18 @@
 // singleton statistics for DeviceHalHidl StreamOutHalHidl StreamInHalHidl
 std::shared_ptr<MethodStatistics<std::string>>
 getStatisticsForClass(std::string_view className) {
-    static const std::map<std::string, std::shared_ptr<MethodStatistics<std::string>>> m =
+    static const std::map<std::string, std::shared_ptr<MethodStatistics<std::string>>,
+            std::less<> /* transparent comparator */> m =
         // copy elided initialization of map m.
         [](){
-            std::map<std::string, std::shared_ptr<MethodStatistics<std::string>>> m;
+            std::map<std::string, std::shared_ptr<MethodStatistics<std::string>>, std::less<>> m;
             addClassesToMap(
                     getStatisticsClassesForModule(METHOD_STATISTICS_MODULE_NAME_AUDIO_HIDL),
                     m);
             return m;
         }();
 
-    auto it = m.find({className.begin(), className.end()});
+    auto it = m.find(className);
     if (it == m.end()) return {};
     return it->second;
 }
diff --git a/media/utils/TimeCheck.cpp b/media/utils/TimeCheck.cpp
index 0848eb3..e53d70f 100644
--- a/media/utils/TimeCheck.cpp
+++ b/media/utils/TimeCheck.cpp
@@ -21,6 +21,7 @@
 #include <android-base/logging.h>
 #include <audio_utils/clock.h>
 #include <mediautils/EventLog.h>
+#include <mediautils/FixedString.h>
 #include <mediautils/MethodStatistics.h>
 #include <mediautils/TimeCheck.h>
 #include <utils/Log.h>
@@ -138,11 +139,11 @@
     return getTimeCheckThread().toString();
 }
 
-TimeCheck::TimeCheck(std::string tag, OnTimerFunc&& onTimer, uint32_t timeoutMs,
+TimeCheck::TimeCheck(std::string_view tag, OnTimerFunc&& onTimer, uint32_t timeoutMs,
         bool crashOnTimeout)
-    : mTimeCheckHandler(new TimeCheckHandler{
-            std::move(tag), std::move(onTimer), crashOnTimeout,
-            std::chrono::system_clock::now(), gettid()})
+    : mTimeCheckHandler{ std::make_shared<TimeCheckHandler>(
+            tag, std::move(onTimer), crashOnTimeout,
+            std::chrono::system_clock::now(), gettid()) }
     , mTimerHandle(timeoutMs == 0
               ? getTimeCheckThread().trackTask(mTimeCheckHandler->tag)
               : getTimeCheckThread().scheduleTask(
@@ -231,14 +232,14 @@
             mediautils::getStatisticsForClass(className);
     if (!statistics) return {}; // empty TimeCheck.
     return mediautils::TimeCheck(
-            std::string(className).append("::").append(methodName),
-            [ clazz = std::string(className), method = std::string(methodName),
+            FixedString62(className).append("::").append(methodName),
+            [ safeMethodName = FixedString30(methodName),
               stats = std::move(statistics) ]
             (bool timeout, float elapsedMs) {
                     if (timeout) {
                         ; // ignored, there is no timeout value.
                     } else {
-                        stats->event(method, elapsedMs);
+                        stats->event(safeMethodName.asStringView(), elapsedMs);
                     }
             }, 0 /* timeoutMs */);
 }
diff --git a/media/utils/TimerThread.cpp b/media/utils/TimerThread.cpp
index 6de6b13..09783ed 100644
--- a/media/utils/TimerThread.cpp
+++ b/media/utils/TimerThread.cpp
@@ -31,17 +31,15 @@
 extern std::string_view timeSuffix(std::string_view time1, std::string_view time2);
 
 TimerThread::Handle TimerThread::scheduleTask(
-        std::string tag, std::function<void()>&& func, std::chrono::milliseconds timeout) {
+        std::string_view tag, std::function<void()>&& func, std::chrono::milliseconds timeout) {
     const auto now = std::chrono::system_clock::now();
-    std::shared_ptr<const Request> request{
-            new Request{ now, now + timeout, gettid(), std::move(tag) }};
+    auto request = std::make_shared<const Request>(now, now + timeout, gettid(), tag);
     return mMonitorThread.add(std::move(request), std::move(func), timeout);
 }
 
-TimerThread::Handle TimerThread::trackTask(std::string tag) {
+TimerThread::Handle TimerThread::trackTask(std::string_view tag) {
     const auto now = std::chrono::system_clock::now();
-    std::shared_ptr<const Request> request{
-            new Request{ now, now, gettid(), std::move(tag) }};
+    auto request = std::make_shared<const Request>(now, now, gettid(), tag);
     return mNoTimeoutMap.add(std::move(request));
 }
 
@@ -106,10 +104,10 @@
 //
 /* static */
 bool TimerThread::isRequestFromHal(const std::shared_ptr<const Request>& request) {
-    const size_t hidlPos = request->tag.find("Hidl");
+    const size_t hidlPos = request->tag.asStringView().find("Hidl");
     if (hidlPos == std::string::npos) return false;
     // should be a separator afterwards Hidl which indicates the string was in the class.
-    const size_t separatorPos = request->tag.find("::", hidlPos);
+    const size_t separatorPos = request->tag.asStringView().find("::", hidlPos);
     return separatorPos != std::string::npos;
 }
 
diff --git a/media/utils/fuzzers/Android.bp b/media/utils/fuzzers/Android.bp
index d26e6c2..fc4c2f9 100644
--- a/media/utils/fuzzers/Android.bp
+++ b/media/utils/fuzzers/Android.bp
@@ -9,14 +9,13 @@
 
 cc_defaults {
     name: "libmediautils_fuzzer_defaults",
+    host_supported: true,
     shared_libs: [
-        "libbatterystats_aidl",
         "libbinder",
-        "libcutils",
         "liblog",
-        "libmediautils",
+        "libcutils",
+        "libmediautils_core",
         "libutils",
-        "libbinder",
         "framework-permission-aidl-cpp",
         "packagemanager_aidl-cpp",
     ],
@@ -27,33 +26,36 @@
         "-Werror",
         "-Wno-c++2a-extensions",
     ],
-
-    header_libs: [
-        "bionic_libc_platform_headers",
-        "libmedia_headers",
-    ],
 }
 
 cc_fuzz {
     name: "libmediautils_fuzzer_battery_notifier",
+    host_supported: false,
+    shared_libs: ["libmediautils"],
     defaults: ["libmediautils_fuzzer_defaults"],
     srcs: ["BatteryNotifierFuzz.cpp"],
 }
 
 cc_fuzz {
     name: "libmediautils_fuzzer_scheduling_policy_service",
+    host_supported: false,
+    shared_libs: ["libmediautils"],
     defaults: ["libmediautils_fuzzer_defaults"],
     srcs: ["SchedulingPolicyServiceFuzz.cpp"],
 }
 
 cc_fuzz {
     name: "libmediautils_fuzzer_service_utilities",
+    host_supported: false,
+    shared_libs: ["libmediautils"],
     defaults: ["libmediautils_fuzzer_defaults"],
     srcs: ["ServiceUtilitiesFuzz.cpp"],
 }
 
 cc_fuzz {
     name: "libmediautils_fuzzer_time_check",
+    host_supported: false,
+    shared_libs: ["libmediautils"],
     defaults: ["libmediautils_fuzzer_defaults"],
     srcs: ["TimeCheckFuzz.cpp"],
 }
diff --git a/media/utils/include/mediautils/ExtendedAccumulator.h b/media/utils/include/mediautils/ExtendedAccumulator.h
new file mode 100644
index 0000000..7e3e170
--- /dev/null
+++ b/media/utils/include/mediautils/ExtendedAccumulator.h
@@ -0,0 +1,90 @@
+/*
+ * 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 <atomic>
+#include <cstdint>
+#include <tuple>
+#include <type_traits>
+
+#include <log/log.h>
+
+namespace android::mediautils {
+
+// The goal of this class is to detect and accumulate wraparound occurrences on a
+// lower sized integer.
+
+// This class assumes that the underlying unsigned type is either incremented or
+// decremented by at most the underlying signed type between any two subsequent
+// polls (or construction). This is well-defined as the modular nature of
+// unsigned arithmetic ensures that every new value maps 1-1 to an
+// increment/decrement over the same sized signed type. It also ensures that our
+// counter will be equivalent mod the size of the integer even if the underlying
+// type is modified outside of this range.
+//
+// For convenience, this class is thread compatible. Additionally, it is safe
+// as long as there is only one writer.
+template <typename Integral = uint32_t, typename AccumulatingType = uint64_t>
+class ExtendedAccumulator {
+    static_assert(sizeof(Integral) < sizeof(AccumulatingType),
+                  "Accumulating type should be larger than underlying type");
+    static_assert(std::is_integral_v<Integral> && std::is_unsigned_v<Integral>,
+                  "Wraparound behavior is only well-defiend for unsigned ints");
+    static_assert(std::is_integral_v<AccumulatingType>);
+
+  public:
+    enum class Wrap {
+        NORMAL = 0,
+        UNDERFLOW = 1,
+        OVERFLOW = 2,
+    };
+
+    using UnsignedInt = Integral;
+    using SignedInt = std::make_signed_t<UnsignedInt>;
+
+    explicit ExtendedAccumulator(AccumulatingType initial = 0) : mAccumulated(initial) {}
+
+    // Returns a pair of the calculated change on the accumulating value, and a
+    // Wrap type representing the type of wraparound (if any) which occurred.
+    std::pair<SignedInt, Wrap> poll(UnsignedInt value) {
+        auto acc = mAccumulated.load(std::memory_order_relaxed);
+        const auto bottom_bits = static_cast<UnsignedInt>(acc);
+        std::pair<SignedInt, Wrap> res = {0, Wrap::NORMAL};
+        const bool overflow = __builtin_sub_overflow(value, bottom_bits, &res.first);
+
+        if (overflow) {
+            res.second = (res.first > 0) ? Wrap::OVERFLOW : Wrap::UNDERFLOW;
+        }
+
+        const bool acc_overflow = __builtin_add_overflow(acc, res.first, &acc);
+        // If our *accumulating* type overflows or underflows (depending on its
+        // signedness), we should abort.
+        if (acc_overflow) LOG_ALWAYS_FATAL("Unexpected overflow/underflow in %s", __func__);
+
+        mAccumulated.store(acc, std::memory_order_relaxed);
+        return res;
+    }
+
+    AccumulatingType getValue() const { return mAccumulated.load(std::memory_order_relaxed); }
+
+  private:
+    // Invariant - the bottom underlying bits of accumulated are the same as the
+    // last value provided to poll.
+    std::atomic<AccumulatingType> mAccumulated;
+};
+
+}  // namespace android::mediautils
diff --git a/media/utils/include/mediautils/FixedString.h b/media/utils/include/mediautils/FixedString.h
new file mode 100644
index 0000000..047aa82
--- /dev/null
+++ b/media/utils/include/mediautils/FixedString.h
@@ -0,0 +1,282 @@
+/*
+ * 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 <algorithm>
+#include <string>
+#include <string_view>
+
+namespace android::mediautils {
+
+/*
+ * FixedString is a stack allocatable string buffer that supports
+ * simple appending of other strings and string_views.
+ *
+ * It is designed for no-malloc operation when std::string
+ * small buffer optimization is insufficient.
+ *
+ * To keep code small, use asStringView() for operations on this.
+ *
+ * Notes:
+ * 1) Appending beyond the internal buffer size results in truncation.
+ *
+ * Alternatives:
+ * 1) If you want a sharable copy-on-write string implementation,
+ *    consider using the legacy android::String8().
+ * 2) Using std::string with a fixed stack allocator may suit your needs,
+ *    but exception avoidance is tricky.
+ * 3) Using C++20 ranges https://en.cppreference.com/w/cpp/ranges if you don't
+ *    need backing store.  Be careful about allocation with ranges.
+ *
+ * Good small sizes are multiples of 16 minus 2, e.g. 14, 30, 46, 62.
+ *
+ * Implementation Notes:
+ * 1) No iterators or [] for FixedString - please convert to std::string_view.
+ * 2) For small N (e.g. less than 62), consider a change to always zero fill and
+ *    potentially prevent always zero terminating (if one only does append).
+ *
+ * Possible arguments to create/append:
+ * 1) A FixedString.
+ * 2) A single char.
+ * 3) A char * pointer.
+ * 4) A std::string.
+ * 5) A std::string_view (or something convertible to it).
+ *
+ * Example:
+ *
+ * FixedString s1(std::string("a"));    // ctor
+ * s1 << "bc" << 'd' << '\n';           // streaming append
+ * s1 += "hello";                       // += append
+ * ASSERT_EQ(s1, "abcd\nhello");
+ */
+template <uint32_t N>
+struct FixedString
+{
+    // Find the best size type.
+    using strsize_t = std::conditional_t<(N > 255), uint32_t, uint8_t>;
+
+    // constructors
+    FixedString() { // override default
+        buffer_[0] = '\0';
+    }
+
+    FixedString(const FixedString& other) { // override default.
+        copyFrom<N>(other);
+    }
+
+    // The following constructor is not explicit to allow
+    // FixedString<8> s = "abcd";
+    template <typename ...Types>
+    FixedString(Types&&... args) {
+        append(std::forward<Types>(args)...);
+    }
+
+    // copy assign (copyFrom checks for equality and returns *this).
+    FixedString& operator=(const FixedString& other) { // override default.
+        return copyFrom<N>(other);
+    }
+
+    template <typename ...Types>
+    FixedString& operator=(Types&&... args) {
+        size_ = 0;
+        return append(std::forward<Types>(args)...);
+    }
+
+    // operator equals
+    bool operator==(const char *s) const {
+        return strncmp(c_str(), s, capacity() + 1) == 0;
+    }
+
+    bool operator==(std::string_view s) const {
+        return size() == s.size() && memcmp(data(), s.data(), size()) == 0;
+    }
+
+    // operator not-equals
+    template <typename T>
+    bool operator!=(const T& other) const {
+        return !operator==(other);
+    }
+
+    // operator +=
+    template <typename ...Types>
+    FixedString& operator+=(Types&&... args) {
+        return append(std::forward<Types>(args)...);
+    }
+
+    // conversion to std::string_view.
+    operator std::string_view() const {
+        return asStringView();
+    }
+
+    // basic observers
+    size_t buffer_offset() const { return offsetof(std::decay_t<decltype(*this)>, buffer_); }
+    static constexpr uint32_t capacity() { return N; }
+    uint32_t size() const { return size_; }
+    uint32_t remaining() const { return size_ >= N ? 0 : N - size_; }
+    bool empty() const { return size_ == 0; }
+    bool full() const { return size_ == N; }  // when full, possible truncation risk.
+    char * data() { return buffer_; }
+    const char * data() const { return buffer_; }
+    const char * c_str() const { return buffer_; }
+
+    inline std::string_view asStringView() const {
+        return { buffer_, static_cast<size_t>(size_) };
+    }
+    inline std::string asString() const {
+        return { buffer_, static_cast<size_t>(size_) };
+    }
+
+    void clear() { size_ = 0; buffer_[0] = 0; }
+
+    // Implementation of append - using templates
+    // to guarantee precedence in the presence of ambiguity.
+    //
+    // Consider C++20 template overloading through constraints and concepts.
+    template <typename T>
+    FixedString& append(const T& t) {
+        using decayT = std::decay_t<T>;
+        if constexpr (is_specialization_v<decayT, FixedString>) {
+            // A FixedString<U>
+            if (size_ == 0) {
+                // optimization to erase everything.
+                return copyFrom(t);
+            } else {
+                return appendStringView({t.data(), t.size()});
+            }
+        } else if constexpr(std::is_same_v<decayT, char>) {
+            if (size_ < N) {
+                buffer_[size_++] = t;
+                buffer_[size_] = '\0';
+            }
+            return *this;
+        } else if constexpr(std::is_same_v<decayT, char *>) {
+            // Some char* ptr.
+            return appendString(t);
+        } else if constexpr (std::is_convertible_v<decayT, std::string_view>) {
+            // std::string_view, std::string, or some other convertible type.
+            return appendStringView(t);
+        } else /* constexpr */ {
+            static_assert(dependent_false_v<T>, "non-matching append type");
+        }
+    }
+
+    FixedString& appendStringView(std::string_view s) {
+        uint32_t total = std::min(static_cast<size_t>(N - size_), s.size());
+        memcpy(buffer_ + size_, s.data(), total);
+        size_ += total;
+        buffer_[size_] = '\0';
+        return *this;
+    }
+
+    FixedString& appendString(const char *s) {
+        // strncpy zero pads to the end,
+        // strlcpy returns total expected length,
+        // we don't have strncpy_s in Bionic,
+        // so we write our own here.
+        while (size_ < N && *s != '\0') {
+            buffer_[size_++] = *s++;
+        }
+        buffer_[size_] = '\0';
+        return *this;
+    }
+
+    // Copy initialize the struct.
+    // Note: We are POD but customize the copying for acceleration
+    // of moving small strings embedded in a large buffers.
+    template <uint32_t U>
+    FixedString& copyFrom(const FixedString<U>& other) {
+        if ((void*)this != (void*)&other) { // not a self-assignment
+            if (other.size() == 0) {
+                size_ = 0;
+                buffer_[0] = '\0';
+                return *this;
+            }
+            constexpr size_t kSizeToCopyWhole = 64;
+            if constexpr (N == U &&
+                    sizeof(*this) == sizeof(other) &&
+                    sizeof(*this) <= kSizeToCopyWhole) {
+                // As we have the same str size type, we can just
+                // memcpy with fixed size, which can be easily optimized.
+                memcpy(static_cast<void*>(this), static_cast<const void*>(&other), sizeof(*this));
+                return *this;
+            }
+            if constexpr (std::is_same_v<strsize_t, typename FixedString<U>::strsize_t>) {
+                constexpr size_t kAlign = 8;  // align to a multiple of 8.
+                static_assert((kAlign & (kAlign - 1)) == 0); // power of 2.
+                // we check any alignment issues.
+                if (buffer_offset() == other.buffer_offset() && other.size() <= capacity()) {
+                    // improve on standard POD copying by reducing size.
+                    const size_t mincpy = buffer_offset() + other.size() + 1 /* nul */;
+                    const size_t maxcpy = std::min(sizeof(*this), sizeof(other));
+                    const size_t cpysize = std::min(mincpy + kAlign - 1 & ~(kAlign - 1), maxcpy);
+                    memcpy(static_cast<void*>(this), static_cast<const void*>(&other), cpysize);
+                    return *this;
+                }
+            }
+            size_ = std::min(other.size(), capacity());
+            memcpy(buffer_, other.data(), size_);
+            buffer_[size_] = '\0';  // zero terminate.
+        }
+        return *this;
+    }
+
+private:
+    //  Template helper methods
+
+    template <typename Test, template <uint32_t> class Ref>
+    struct is_specialization : std::false_type {};
+
+    template <template <uint32_t> class Ref, uint32_t UU>
+    struct is_specialization<Ref<UU>, Ref>: std::true_type {};
+
+    template <typename Test, template <uint32_t> class Ref>
+    static inline constexpr bool is_specialization_v = is_specialization<Test, Ref>::value;
+
+    // For static assert(false) we need a template version to avoid early failure.
+    template <typename T>
+    static inline constexpr bool dependent_false_v = false;
+
+    // POD variables
+    strsize_t size_ = 0;
+    char buffer_[N + 1 /* allow zero termination */];
+};
+
+// Stream operator syntactic sugar.
+// Example:
+// s << 'b' << "c" << "d" << '\n';
+template <uint32_t N, typename ...Types>
+FixedString<N>& operator<<(FixedString<N>& fs, Types&&... args) {
+    return fs.append(std::forward<Types>(args)...);
+}
+
+// We do not use a default size for fixed string as changing
+// the default size would lead to different behavior - we want the
+// size to be explicitly known.
+
+// FixedString62 of 62 chars fits in one typical cache line.
+using FixedString62 = FixedString<62>;
+
+// Slightly smaller
+using FixedString30 = FixedString<30>;
+
+// Since we have added copy and assignment optimizations,
+// we are no longer trivially assignable and copyable.
+// But we check standard layout here to prevent inclusion of unacceptable members or virtuals.
+static_assert(std::is_standard_layout_v<FixedString62>);
+static_assert(std::is_standard_layout_v<FixedString30>);
+
+}  // namespace android::mediautils
diff --git a/media/utils/include/mediautils/MethodStatistics.h b/media/utils/include/mediautils/MethodStatistics.h
index 700fbaa..6d7e990 100644
--- a/media/utils/include/mediautils/MethodStatistics.h
+++ b/media/utils/include/mediautils/MethodStatistics.h
@@ -55,15 +55,23 @@
     /**
      * Adds a method event, typically execution time in ms.
      */
-    void event(Code code, FloatType executeMs) {
+    template <typename C>
+    void event(C&& code, FloatType executeMs) {
         std::lock_guard lg(mLock);
-        mStatisticsMap[code].add(executeMs);
+        auto it = mStatisticsMap.lower_bound(code);
+        if (it != mStatisticsMap.end() && it->first == code) {
+            it->second.add(executeMs);
+        } else {
+            // StatsType ctor takes an optional array of data for initialization.
+            FloatType dataArray[1] = { executeMs };
+            mStatisticsMap.emplace_hint(it, std::forward<C>(code), dataArray);
+        }
     }
 
     /**
      * Returns the name for the method code.
      */
-    std::string getMethodForCode(Code code) const {
+    std::string getMethodForCode(const Code& code) const {
         auto it = mMethodMap.find(code);
         return it == mMethodMap.end() ? std::to_string((int)code) : it->second;
     }
@@ -71,7 +79,7 @@
     /**
      * Returns the number of times the method was invoked by event().
      */
-    size_t getMethodCount(Code code) const {
+    size_t getMethodCount(const Code& code) const {
         std::lock_guard lg(mLock);
         auto it = mStatisticsMap.find(code);
         return it == mStatisticsMap.end() ? 0 : it->second.getN();
@@ -80,7 +88,7 @@
     /**
      * Returns the statistics object for the method.
      */
-    StatsType getStatistics(Code code) const {
+    StatsType getStatistics(const Code& code) const {
         std::lock_guard lg(mLock);
         auto it = mStatisticsMap.find(code);
         return it == mStatisticsMap.end() ? StatsType{} : it->second;
@@ -107,9 +115,10 @@
     }
 
 private:
-    const std::map<Code, std::string> mMethodMap;
+    // Note: we use a transparent comparator std::less<> for heterogeneous key lookup.
+    const std::map<Code, std::string, std::less<>> mMethodMap;
     mutable std::mutex mLock;
-    std::map<Code, StatsType> mStatisticsMap GUARDED_BY(mLock);
+    std::map<Code, StatsType, std::less<>> mStatisticsMap GUARDED_BY(mLock);
 };
 
 // Managed Statistics support.
diff --git a/media/utils/include/mediautils/ServiceUtilities.h b/media/utils/include/mediautils/ServiceUtilities.h
index de20d55..3d7981a 100644
--- a/media/utils/include/mediautils/ServiceUtilities.h
+++ b/media/utils/include/mediautils/ServiceUtilities.h
@@ -130,7 +130,7 @@
     std::optional<bool> doIsAllowed(uid_t uid);
     sp<content::pm::IPackageManagerNative> retrievePackageManager();
     sp<content::pm::IPackageManagerNative> mPackageManager; // To check apps manifest
-    uint_t mPackageManagerErrors = 0;
+    unsigned int mPackageManagerErrors = 0;
     struct Package {
         std::string name;
         bool playbackCaptureAllowed = false;
diff --git a/media/utils/include/mediautils/TimeCheck.h b/media/utils/include/mediautils/TimeCheck.h
index ef03aef..038e7dd 100644
--- a/media/utils/include/mediautils/TimeCheck.h
+++ b/media/utils/include/mediautils/TimeCheck.h
@@ -60,7 +60,7 @@
      *                  the TimeCheck object is destroyed or leaves scope.
      * \param crashOnTimeout true if the object issues an abort on timeout.
      */
-    explicit TimeCheck(std::string tag, OnTimerFunc&& onTimer = {},
+    explicit TimeCheck(std::string_view tag, OnTimerFunc&& onTimer = {},
             uint32_t timeoutMs = kDefaultTimeOutMs, bool crashOnTimeout = true);
 
     TimeCheck() = default;
@@ -79,7 +79,17 @@
     // The usage here is const safe.
     class TimeCheckHandler {
     public:
-        const std::string tag;
+        template <typename S, typename F>
+        TimeCheckHandler(S&& _tag, F&& _onTimer, bool _crashOnTimeout,
+            const std::chrono::system_clock::time_point& _startTime,
+            pid_t _tid)
+            : tag(std::forward<S>(_tag))
+            , onTimer(std::forward<F>(_onTimer))
+            , crashOnTimeout(_crashOnTimeout)
+            , startTime(_startTime)
+            , tid(_tid)
+            {}
+        const FixedString62 tag;
         const OnTimerFunc onTimer;
         const bool crashOnTimeout;
         const std::chrono::system_clock::time_point startTime;
diff --git a/media/utils/include/mediautils/TimerThread.h b/media/utils/include/mediautils/TimerThread.h
index ffee602..349bffd 100644
--- a/media/utils/include/mediautils/TimerThread.h
+++ b/media/utils/include/mediautils/TimerThread.h
@@ -27,6 +27,8 @@
 
 #include <android-base/thread_annotations.h>
 
+#include <mediautils/FixedString.h>
+
 namespace android::mediautils {
 
 /**
@@ -54,7 +56,7 @@
      * \returns       a handle that can be used for cancellation.
      */
     Handle scheduleTask(
-            std::string tag, std::function<void()>&& func, std::chrono::milliseconds timeout);
+            std::string_view tag, std::function<void()>&& func, std::chrono::milliseconds timeout);
 
     /**
      * Tracks a task that shows up on toString() until cancelled.
@@ -62,7 +64,7 @@
      * \param tag     string associated with the task.
      * \returns       a handle that can be used for cancellation.
      */
-    Handle trackTask(std::string tag);
+    Handle trackTask(std::string_view tag);
 
     /**
      * Cancels a task previously scheduled with scheduleTask()
@@ -129,12 +131,22 @@
     // To minimize movement of data, we pass around shared_ptrs to Requests.
     // These are allocated and deallocated outside of the lock.
     struct Request {
+        Request(const std::chrono::system_clock::time_point& _scheduled,
+                const std::chrono::system_clock::time_point& _deadline,
+                pid_t _tid,
+                std::string_view _tag)
+            : scheduled(_scheduled)
+            , deadline(_deadline)
+            , tid(_tid)
+            , tag(_tag)
+            {}
+
         const std::chrono::system_clock::time_point scheduled;
         const std::chrono::system_clock::time_point deadline; // deadline := scheduled + timeout
                                                               // if deadline == scheduled, no
                                                               // timeout, task not executed.
         const pid_t tid;
-        const std::string tag;
+        const FixedString62 tag;
 
         std::string toString() const;
     };
diff --git a/media/utils/tests/Android.bp b/media/utils/tests/Android.bp
index 1024018..602cada 100644
--- a/media/utils/tests/Android.bp
+++ b/media/utils/tests/Android.bp
@@ -7,78 +7,106 @@
     default_applicable_licenses: ["frameworks_av_license"],
 }
 
-cc_test_library {
-    name: "libsharedtest",
+// general test config
+cc_defaults {
+    name: "libmediautils_tests_config",
+
+    host_supported: true,
+
     cflags: [
         "-Wall",
         "-Werror",
         "-Wextra",
     ],
 
-    sanitize:{
-       address: true,
-       cfi: true,
-       integer_overflow: true,
-       memtag_heap: true,
+    sanitize: {
+        address: true,
+        cfi: true,
+        integer_overflow: true,
+        memtag_heap: true,
     },
+}
+
+cc_defaults {
+    name: "libmediautils_tests_defaults",
+
+    defaults: ["libmediautils_tests_config"],
+
+    host_supported: true,
 
     shared_libs: [
         "liblog",
+        "libutils",
     ],
 
+    static_libs: [
+        "libmediautils_core",
+    ],
+}
+
+cc_defaults {
+    name: "libmediautils_tests_host_unavail",
+
+    defaults: ["libmediautils_tests_config"],
+
+    host_supported: false,
+
+   shared_libs: [
+        "liblog",
+        "libmediautils",
+        "libutils",
+    ],
+}
+
+cc_test_library {
+    name: "libsharedtest",
+
+    defaults: ["libmediautils_tests_defaults"],
+
     srcs: [
         "sharedtest.cpp",
-    ]
+    ],
 }
 
 cc_test {
     name: "library_tests",
 
-    cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wextra",
-    ],
-
-    sanitize:{
-       address: true,
-       cfi: true,
-       integer_overflow: true,
-       memtag_heap: true,
-    },
-
-    shared_libs: [
-        "libbase",
-        "liblog",
-        "libmediautils",
-        "libutils",
-    ],
+    defaults: ["libmediautils_tests_defaults"],
 
     data_libs: [
         "libsharedtest",
     ],
 
+    shared_libs: [
+        "libbase",
+    ],
+
     srcs: [
         "library_tests.cpp",
     ],
 }
 
 cc_test {
-    name: "media_process_tests",
+    name: "libmediautils_test",
 
-    cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wextra",
-    ],
+    defaults: ["libmediautils_tests_host_unavail"],
 
     shared_libs: [
-        "liblog",
         "libmediautils",
-        "libutils",
     ],
 
     srcs: [
+        "memory-test.cpp",
+        "TimerThread-test.cpp",
+    ],
+}
+
+cc_test {
+    name: "media_process_tests",
+
+    defaults: ["libmediautils_tests_host_unavail"],
+
+    srcs: [
         "media_process_tests.cpp",
     ],
 }
@@ -86,17 +114,7 @@
 cc_test {
     name: "media_synchronization_tests",
 
-    cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wextra",
-    ],
-
-    shared_libs: [
-        "liblog",
-        "libmediautils",
-        "libutils",
-    ],
+    defaults: ["libmediautils_tests_host_unavail"],
 
     srcs: [
         "media_synchronization_tests.cpp",
@@ -106,17 +124,7 @@
 cc_test {
     name: "media_threadsnapshot_tests",
 
-    cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wextra",
-    ],
-
-    shared_libs: [
-        "liblog",
-        "libmediautils",
-        "libutils",
-    ],
+    defaults: ["libmediautils_tests_host_unavail"],
 
     srcs: [
         "media_threadsnapshot_tests.cpp",
@@ -124,19 +132,26 @@
 }
 
 cc_test {
-    name: "mediautils_scopedstatistics_tests",
+    name: "mediautils_fixedstring_tests",
 
-    cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wextra",
-    ],
+    defaults: ["libmediautils_tests_defaults"],
 
     shared_libs: [
         "libaudioutils",
-        "liblog",
-        "libmediautils",
-        "libutils",
+    ],
+
+    srcs: [
+        "mediautils_fixedstring_tests.cpp",
+    ],
+}
+
+cc_test {
+    name: "mediautils_scopedstatistics_tests",
+
+    defaults: ["libmediautils_tests_defaults"],
+
+    shared_libs: [
+        "libaudioutils",
     ],
 
     srcs: [
@@ -147,17 +162,10 @@
 cc_test {
     name: "methodstatistics_tests",
 
-    cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wextra",
-    ],
+    defaults: ["libmediautils_tests_defaults"],
 
     shared_libs: [
         "libaudioutils",
-        "liblog",
-        "libmediautils",
-        "libutils",
     ],
 
     srcs: [
@@ -168,26 +176,19 @@
 cc_test {
     name: "timecheck_tests",
 
-    cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wextra",
-    ],
-
-    sanitize:{
-       address: true,
-       cfi: true,
-       integer_overflow: true,
-       memtag_heap: true,
-    },
-
-    shared_libs: [
-        "liblog",
-        "libmediautils",
-        "libutils",
-    ],
+    defaults: ["libmediautils_tests_host_unavail"],
 
     srcs: [
         "timecheck_tests.cpp",
     ],
 }
+
+cc_test {
+    name: "extended_accumulator_tests",
+
+    defaults: ["libmediautils_tests_defaults"],
+
+    srcs: [
+        "extended_accumulator_tests.cpp",
+    ],
+}
diff --git a/media/utils/TimerThread-test.cpp b/media/utils/tests/TimerThread-test.cpp
similarity index 70%
rename from media/utils/TimerThread-test.cpp
rename to media/utils/tests/TimerThread-test.cpp
index 93cd64c..1fbe894 100644
--- a/media/utils/TimerThread-test.cpp
+++ b/media/utils/tests/TimerThread-test.cpp
@@ -40,8 +40,10 @@
     std::this_thread::sleep_for(100ms - kJitter);
     ASSERT_FALSE(taskRan);
     std::this_thread::sleep_for(2 * kJitter);
-    ASSERT_TRUE(taskRan);
-    ASSERT_EQ(1, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_TRUE(taskRan); // timed-out called.
+    ASSERT_EQ(1ul, countChars(thread.timeoutToString(), REQUEST_START));
+    // nothing cancelled
+    ASSERT_EQ(0ul, countChars(thread.retiredToString(), REQUEST_START));
 }
 
 TEST(TimerThread, Cancel) {
@@ -53,8 +55,10 @@
     ASSERT_FALSE(taskRan);
     ASSERT_TRUE(thread.cancelTask(handle));
     std::this_thread::sleep_for(2 * kJitter);
-    ASSERT_FALSE(taskRan);
-    ASSERT_EQ(1, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_FALSE(taskRan); // timed-out did not call.
+    ASSERT_EQ(0ul, countChars(thread.timeoutToString(), REQUEST_START));
+    // task cancelled.
+    ASSERT_EQ(1ul, countChars(thread.retiredToString(), REQUEST_START));
 }
 
 TEST(TimerThread, CancelAfterRun) {
@@ -63,9 +67,11 @@
     TimerThread::Handle handle =
             thread.scheduleTask("CancelAfterRun", [&taskRan] { taskRan = true; }, 100ms);
     std::this_thread::sleep_for(100ms + kJitter);
-    ASSERT_TRUE(taskRan);
+    ASSERT_TRUE(taskRan); //  timed-out called.
     ASSERT_FALSE(thread.cancelTask(handle));
-    ASSERT_EQ(1, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_EQ(1ul, countChars(thread.timeoutToString(), REQUEST_START));
+    // nothing actually cancelled
+    ASSERT_EQ(0ul, countChars(thread.retiredToString(), REQUEST_START));
 }
 
 TEST(TimerThread, MultipleTasks) {
@@ -82,9 +88,9 @@
     thread.scheduleTask("5", [&taskRan] { taskRan[5] = true; }, 200ms);
 
     // 6 tasks pending
-    ASSERT_EQ(6, countChars(thread.pendingToString(), REQUEST_START));
+    ASSERT_EQ(6ul, countChars(thread.pendingToString(), REQUEST_START));
     // 0 tasks completed
-    ASSERT_EQ(0, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_EQ(0ul, countChars(thread.retiredToString(), REQUEST_START));
 
     // Task 1 should trigger around 100ms.
     std::this_thread::sleep_until(startTime + 100ms - kJitter);
@@ -141,9 +147,10 @@
     ASSERT_TRUE(taskRan[5]);
 
     // 1 task pending
-    ASSERT_EQ(1, countChars(thread.pendingToString(), REQUEST_START));
-    // 4 tasks ran and 1 cancelled
-    ASSERT_EQ(4 + 1, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_EQ(1ul, countChars(thread.pendingToString(), REQUEST_START));
+    // 4 tasks called on timeout,  and 1 cancelled
+    ASSERT_EQ(4ul, countChars(thread.timeoutToString(), REQUEST_START));
+    ASSERT_EQ(1ul, countChars(thread.retiredToString(), REQUEST_START));
 
     // Task 3 should trigger around 400ms.
     std::this_thread::sleep_until(startTime + 400ms - kJitter);
@@ -154,8 +161,9 @@
     ASSERT_FALSE(taskRan[4]);
     ASSERT_TRUE(taskRan[5]);
 
-    // 4 tasks ran and 1 cancelled
-    ASSERT_EQ(4 + 1, countChars(thread.retiredToString(), REQUEST_START));
+    // 4 tasks called on timeout and 1 cancelled
+    ASSERT_EQ(4ul, countChars(thread.timeoutToString(), REQUEST_START));
+    ASSERT_EQ(1ul, countChars(thread.retiredToString(), REQUEST_START));
 
     std::this_thread::sleep_until(startTime + 400ms + kJitter);
     ASSERT_TRUE(taskRan[0]);
@@ -166,9 +174,10 @@
     ASSERT_TRUE(taskRan[5]);
 
     // 0 tasks pending
-    ASSERT_EQ(0, countChars(thread.pendingToString(), REQUEST_START));
-    // 5 tasks ran and 1 cancelled
-    ASSERT_EQ(5 + 1, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_EQ(0ul, countChars(thread.pendingToString(), REQUEST_START));
+    // 5 tasks called on timeout and 1 cancelled
+    ASSERT_EQ(5ul, countChars(thread.timeoutToString(), REQUEST_START));
+    ASSERT_EQ(1ul, countChars(thread.retiredToString(), REQUEST_START));
 }
 
 TEST(TimerThread, TrackedTasks) {
@@ -179,47 +188,47 @@
     auto handle2 = thread.trackTask("2");
 
     // 3 tasks pending
-    ASSERT_EQ(3, countChars(thread.pendingToString(), REQUEST_START));
+    ASSERT_EQ(3ul, countChars(thread.pendingToString(), REQUEST_START));
     // 0 tasks retired
-    ASSERT_EQ(0, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_EQ(0ul, countChars(thread.retiredToString(), REQUEST_START));
 
     ASSERT_TRUE(thread.cancelTask(handle0));
     ASSERT_TRUE(thread.cancelTask(handle1));
 
     // 1 task pending
-    ASSERT_EQ(1, countChars(thread.pendingToString(), REQUEST_START));
+    ASSERT_EQ(1ul, countChars(thread.pendingToString(), REQUEST_START));
     // 2 tasks retired
-    ASSERT_EQ(2, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_EQ(2ul, countChars(thread.retiredToString(), REQUEST_START));
 
     // handle1 is stale, cancel returns false.
     ASSERT_FALSE(thread.cancelTask(handle1));
 
     // 1 task pending
-    ASSERT_EQ(1, countChars(thread.pendingToString(), REQUEST_START));
+    ASSERT_EQ(1ul, countChars(thread.pendingToString(), REQUEST_START));
     // 2 tasks retired
-    ASSERT_EQ(2, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_EQ(2ul, countChars(thread.retiredToString(), REQUEST_START));
 
     // Add another tracked task.
     auto handle3 = thread.trackTask("3");
 
     // 2 tasks pending
-    ASSERT_EQ(2, countChars(thread.pendingToString(), REQUEST_START));
+    ASSERT_EQ(2ul, countChars(thread.pendingToString(), REQUEST_START));
     // 2 tasks retired
-    ASSERT_EQ(2, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_EQ(2ul, countChars(thread.retiredToString(), REQUEST_START));
 
     ASSERT_TRUE(thread.cancelTask(handle2));
 
     // 1 tasks pending
-    ASSERT_EQ(1, countChars(thread.pendingToString(), REQUEST_START));
+    ASSERT_EQ(1ul, countChars(thread.pendingToString(), REQUEST_START));
     // 3 tasks retired
-    ASSERT_EQ(3, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_EQ(3ul, countChars(thread.retiredToString(), REQUEST_START));
 
     ASSERT_TRUE(thread.cancelTask(handle3));
 
     // 0 tasks pending
-    ASSERT_EQ(0, countChars(thread.pendingToString(), REQUEST_START));
+    ASSERT_EQ(0ul, countChars(thread.pendingToString(), REQUEST_START));
     // 4 tasks retired
-    ASSERT_EQ(4, countChars(thread.retiredToString(), REQUEST_START));
+    ASSERT_EQ(4ul, countChars(thread.retiredToString(), REQUEST_START));
 }
 
 }  // namespace
diff --git a/media/utils/tests/extended_accumulator_tests.cpp b/media/utils/tests/extended_accumulator_tests.cpp
new file mode 100644
index 0000000..e243e7e
--- /dev/null
+++ b/media/utils/tests/extended_accumulator_tests.cpp
@@ -0,0 +1,101 @@
+/*
+ * 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 "extended_accumulator_tests"
+
+#include <mediautils/ExtendedAccumulator.h>
+
+#include <type_traits>
+#include <cstdint>
+#include <limits.h>
+
+#include <gtest/gtest.h>
+#include <log/log.h>
+
+using namespace android;
+using namespace android::mediautils;
+
+// Conditionally choose a base accumulating counter value in order to prevent
+// unsigned underflow on the accumulator from aborting the tests.
+template <typename TType, typename CType>
+static constexpr CType getBase() {
+  static_assert(sizeof(TType) < sizeof(CType));
+  if constexpr (std::is_unsigned_v<CType>) {
+      return std::numeric_limits<TType>::max() + 1;
+  } else {
+      return 0;
+  }
+}
+
+// Since the entire state of this utility is the previous value, and the
+// behavior is isomorphic mod the underlying type on the previous value, we can
+// test combinations of the previous value of the underlying type and a
+// hypothetical signed update to that type and ensure the accumulator moves
+// correctly and reports overflow correctly.
+template <typename TestUInt, typename CType>
+void testPair(TestUInt prevVal, std::make_signed_t<TestUInt> delta) {
+    using TestDetect = ExtendedAccumulator<TestUInt, CType>;
+    using TestInt = typename TestDetect::SignedInt;
+    static_assert(std::is_same_v<typename TestDetect::UnsignedInt, TestUInt>);
+    static_assert(std::is_same_v<TestInt, std::make_signed_t<TestUInt>>);
+    static_assert(sizeof(TestUInt) < sizeof(CType));
+
+    // To safely detect underflow/overflow for testing
+    // Should be 0 mod TestUInt, max + 1 is convenient
+    static constexpr CType base = getBase<TestUInt, CType>();
+    const CType prev = base + prevVal;
+    TestDetect test{prev};
+    EXPECT_EQ(test.getValue(), prev);
+    // Prevent unsigned wraparound abort
+    CType next;
+    const auto err =  __builtin_add_overflow(prev, delta, &next);
+    LOG_ALWAYS_FATAL_IF(err, "Unexpected wrap in tests");
+    const auto [result, status] = test.poll(static_cast<TestUInt>(next));
+    EXPECT_EQ(test.getValue(), next);
+    EXPECT_EQ(result, delta);
+
+    // Test overflow/underflow event reporting.
+    if (next < base) EXPECT_EQ(TestDetect::Wrap::UNDERFLOW, status);
+    else if (next > base + std::numeric_limits<TestUInt>::max())
+        EXPECT_EQ(TestDetect::Wrap::OVERFLOW, status);
+    else EXPECT_EQ(TestDetect::Wrap::NORMAL, status);
+}
+
+// Test this utility on every combination of prior and update value for the
+// type uint8_t, with an unsigned containing type.
+TEST(wraparound_tests, cover_u8_u64) {
+    using TType = uint8_t;
+    using CType = uint64_t;
+    static constexpr CType max = std::numeric_limits<TType>::max();
+    for (CType i = 0; i <= max; i++) {
+        for (CType j = 0; j <= max; j++) {
+            testPair<TType, CType>(i, static_cast<int64_t>(j));
+        }
+    }
+}
+
+// Test this utility on every combination of prior and update value for the
+// type uint8_t, with a signed containing type.
+TEST(wraparound_tests, cover_u8_s64) {
+    using TType = uint8_t;
+    using CType = int64_t;
+    static constexpr CType max = std::numeric_limits<TType>::max();
+    for (CType i = 0; i <= max; i++) {
+        for (CType j = 0; j <= max; j++) {
+            testPair<TType, CType>(i, static_cast<int64_t>(j));
+        }
+    }
+}
diff --git a/media/utils/tests/media_process_tests.cpp b/media/utils/tests/media_process_tests.cpp
index 2ae3f70..6e738b1 100644
--- a/media/utils/tests/media_process_tests.cpp
+++ b/media/utils/tests/media_process_tests.cpp
@@ -24,6 +24,14 @@
 using namespace android;
 using namespace android::mediautils;
 
+// Disables false-positives from base::Split()
+//
+// See mismatched sanitized libraries here:
+// https://github.com/google/sanitizers/wiki/AddressSanitizerContainerOverflow
+extern "C" const char* __asan_default_options() {
+  return "detect_container_overflow=0";
+}
+
 TEST(media_process_tests, basic) {
   const std::string schedString = getThreadSchedAsString(gettid());
 
diff --git a/media/utils/tests/media_threadsnapshot_tests.cpp b/media/utils/tests/media_threadsnapshot_tests.cpp
index c7a45e2..fc9aeab 100644
--- a/media/utils/tests/media_threadsnapshot_tests.cpp
+++ b/media/utils/tests/media_threadsnapshot_tests.cpp
@@ -27,6 +27,14 @@
 using namespace android;
 using namespace android::mediautils;
 
+// Disables false-positives from base::Split()
+//
+// See mismatched sanitized libraries here:
+// https://github.com/google/sanitizers/wiki/AddressSanitizerContainerOverflow
+extern "C" const char* __asan_default_options() {
+  return "detect_container_overflow=0";
+}
+
 TEST(media_threadsnapshot_tests, basic) {
   using namespace std::chrono_literals;
 
diff --git a/media/utils/tests/mediautils_fixedstring_tests.cpp b/media/utils/tests/mediautils_fixedstring_tests.cpp
new file mode 100644
index 0000000..7ab9a9f
--- /dev/null
+++ b/media/utils/tests/mediautils_fixedstring_tests.cpp
@@ -0,0 +1,151 @@
+/*
+ * 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 "mediautils_fixedstring_tests"
+
+#include <mediautils/FixedString.h>
+
+#include <gtest/gtest.h>
+#include <utils/Log.h>
+
+using namespace android::mediautils;
+
+TEST(mediautils_fixedstring_tests, ctor) {
+    FixedString<8> s0("abcde");
+
+    ASSERT_FALSE(s0.empty());
+    ASSERT_EQ(8U, s0.capacity());
+
+    ASSERT_EQ(5U, s0.size());
+    ASSERT_EQ(3U, s0.remaining());
+    ASSERT_EQ(0, strcmp(s0.c_str(), "abcde"));
+
+    ASSERT_EQ(0, strcmp(s0.data(), "abcde"));
+
+    // overflow
+    FixedString<8> s1("abcdefghijk");
+    ASSERT_EQ(8U, s1.size());
+    ASSERT_TRUE(s1.full());
+    ASSERT_EQ(0U, s1.remaining());
+    ASSERT_EQ(0, strcmp(s1.c_str(), "abcdefgh"));
+
+    // overflow
+    FixedString<8> s2(std::string("abcdefghijk"));
+    ASSERT_TRUE(s2.full());
+
+    ASSERT_EQ(8U, s2.size());
+    ASSERT_EQ(0, strcmp(s2.c_str(), "abcdefgh"));
+
+    // complex
+    ASSERT_EQ(s1, s2);
+    ASSERT_EQ(FixedString<12>().append(s1), s2);
+    ASSERT_NE(s1, "bcd");
+
+    // string and stringview
+    ASSERT_EQ(s1.asString(), s1.asStringView());
+
+    FixedString30 s3;
+    s3 = std::string("abcd");
+    ASSERT_EQ(s3, "abcd");
+
+    s3.clear();
+    ASSERT_EQ(s3, "");
+    ASSERT_NE(s3, "abcd");
+    ASSERT_EQ(0U, s3.size());
+}
+
+TEST(mediautils_fixedstring_tests, append) {
+    FixedString<8> s0;
+    ASSERT_EQ(0U, s0.size());
+    ASSERT_EQ(0, strcmp(s0.c_str(), ""));
+    ASSERT_TRUE(s0.empty());
+    ASSERT_FALSE(s0.full());
+
+    s0.append("abc");
+    ASSERT_EQ(3U, s0.size());
+    ASSERT_EQ(0, strcmp(s0.c_str(), "abc"));
+
+    s0.append(std::string("d"));
+    ASSERT_EQ(4U, s0.size());
+    ASSERT_EQ(0, strcmp(s0.c_str(), "abcd"));
+
+    // overflow
+    s0.append("efghijk");
+    ASSERT_EQ(8U, s0.size());
+    ASSERT_EQ(0, strcmp(s0.c_str(), "abcdefgh"));
+    ASSERT_TRUE(s0.full());
+
+    // concatenated
+    ASSERT_EQ(FixedString62("abcd"),
+            FixedString<8>("ab").append("c").append(FixedString<8>("d")));
+    ASSERT_EQ(FixedString<12>("a").append(FixedString<12>("b")), "ab");
+}
+
+TEST(mediautils_fixedstring_tests, plus_equals) {
+    FixedString<8> s0;
+    ASSERT_EQ(0U, s0.size());
+    ASSERT_EQ(0, strcmp(s0.c_str(), ""));
+
+    s0 += "abc";
+    s0 += "def";
+    ASSERT_EQ(s0, "abcdef");
+}
+
+TEST(mediautils_fixedstring_tests, stream_operator) {
+    FixedString<8> s0('a');
+
+    s0 << 'b' << "c" << "d" << '\n';
+    ASSERT_EQ(s0, "abcd\n");
+}
+
+TEST(mediautils_fixedstring_tests, examples) {
+    FixedString30 s1(std::string("a"));
+    s1 << "bc" << 'd' << '\n';
+    s1 += "hello";
+
+    ASSERT_EQ(s1, "abcd\nhello");
+
+    FixedString30 s2;
+    for (const auto &c : s1.asStringView()) {
+        s2.append(c);
+    };
+    ASSERT_EQ(s1, s2);
+
+    FixedString30 s3(std::move(s1));
+}
+
+// Ensure type alias works fine as well.
+using FixedString1024 = FixedString<1024>;
+
+TEST(mediautils_fixedstring_tests, copy) {
+    FixedString1024 s0("abc");
+    FixedString62 s1(s0);
+
+    ASSERT_EQ(3U, s1.size());
+    ASSERT_EQ(0, strcmp(s1.c_str(), "abc"));
+    ASSERT_EQ(s0, s1);
+
+    FixedString<1024> s2(s1);
+    ASSERT_EQ(3U, s2.size());
+    ASSERT_EQ(0, strcmp(s2.c_str(), "abc"));
+    ASSERT_EQ(s2, "abc");
+    ASSERT_NE(s2, "def");
+    ASSERT_EQ(s2, std::string("abc"));
+    ASSERT_NE(s2, std::string("def"));
+    ASSERT_EQ(s1, s2);
+    ASSERT_EQ(s0, s2);
+    ASSERT_EQ(s2, FixedString62(FixedString1024("abc")));
+}
diff --git a/media/utils/memory-test.cpp b/media/utils/tests/memory-test.cpp
similarity index 100%
rename from media/utils/memory-test.cpp
rename to media/utils/tests/memory-test.cpp
diff --git a/services/audioflinger/Android.bp b/services/audioflinger/Android.bp
index 763c070..420ae52 100644
--- a/services/audioflinger/Android.bp
+++ b/services/audioflinger/Android.bp
@@ -71,6 +71,7 @@
         "liblog",
         "libbinder",
         "libaudioclient",
+        "libaudiomanager",
         "libmedialogservice",
         "libmediametrics",
         "libmediautils",
@@ -78,7 +79,6 @@
         "libnblog",
         "libpermission",
         "libpowermanager",
-        "libmediautils",
         "libmemunreachable",
         "libmedia_helper",
         "libshmemcompat",
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 8ae06d0..a68f63e 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -54,7 +54,7 @@
 #include <cutils/properties.h>
 
 #include <system/audio.h>
-#include <audiomanager/AudioManager.h>
+#include <audiomanager/IAudioManager.h>
 
 #include "AudioFlinger.h"
 #include "NBAIO_Tee.h"
@@ -114,11 +114,12 @@
 using media::audio::common::AudioMMapPolicyType;
 using android::content::AttributionSourceState;
 
-static const char kDeadlockedString[] = "AudioFlinger may be deadlocked\n";
-static const char kHardwareLockedString[] = "Hardware lock is taken\n";
-static const char kClientLockedString[] = "Client lock is taken\n";
-static const char kNoEffectsFactory[] = "Effects Factory is absent\n";
+static constexpr char kDeadlockedString[] = "AudioFlinger may be deadlocked\n";
+static constexpr char kHardwareLockedString[] = "Hardware lock is taken\n";
+static constexpr char kClientLockedString[] = "Client lock is taken\n";
+static constexpr char kNoEffectsFactory[] = "Effects Factory is absent\n";
 
+static constexpr char kAudioServiceName[] = "audio";
 
 nsecs_t AudioFlinger::mStandbyTimeInNsecs = kDefaultStandbyTimeInNsecs;
 
@@ -657,6 +658,7 @@
 void AudioFlinger::onExternalVibrationStop(const sp<os::ExternalVibration>& externalVibration) {
     sp<os::IExternalVibratorService> evs = getExternalVibratorService();
     if (evs != 0) {
+        ALOGD("%s, stopping external vibration", __func__);
         evs->onExternalVibrationStop(*externalVibration);
     }
 }
@@ -768,6 +770,11 @@
                             (uint32_t)(mStandbyTimeInNsecs / 1000000));
     result.append(buffer);
     write(fd, result.string(), result.size());
+
+    dprintf(fd, "Vibrator infos(size=%zu):\n", mAudioVibratorInfos.size());
+    for (const auto& vibratorInfo : mAudioVibratorInfos) {
+        dprintf(fd, "  - %s\n", vibratorInfo.toString().c_str());
+    }
 }
 
 void AudioFlinger::dumpPermissionDenial(int fd, const Vector<String16>& args __unused)
@@ -2716,9 +2723,28 @@
         ThreadBase *thread = (ThreadBase *)mMmapThreads.valueAt(i).get();
         thread->systemReady();
     }
+
+    // Java services are ready, so we can create a reference to AudioService
+    getOrCreateAudioManager();
+
     return NO_ERROR;
 }
 
+sp<IAudioManager> AudioFlinger::getOrCreateAudioManager()
+{
+    if (mAudioManager.load() == nullptr) {
+        // use checkService() to avoid blocking
+        sp<IBinder> binder =
+            defaultServiceManager()->checkService(String16(kAudioServiceName));
+        if (binder != nullptr) {
+            mAudioManager = interface_cast<IAudioManager>(binder);
+        } else {
+            ALOGE("%s(): binding to audio service failed.", __func__);
+        }
+    }
+    return mAudioManager.load();
+}
+
 status_t AudioFlinger::getMicrophones(std::vector<media::MicrophoneInfo> *microphones)
 {
     AutoMutex lock(mHardwareLock);
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index fc4c807..08594e2 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -117,6 +117,7 @@
 class DevicesFactoryHalInterface;
 class EffectsFactoryHalInterface;
 class FastMixer;
+class IAudioManager;
 class PassthruBufferProvider;
 class RecordBufferConverter;
 class ServerProxy;
@@ -988,6 +989,8 @@
                                       size_t rejectedKVPSize, const String8& rejectedKVPs,
                                       uid_t callingUid);
 
+    sp<IAudioManager> getOrCreateAudioManager();
+
 public:
     // These methods read variables atomically without mLock,
     // though the variables are updated with mLock.
@@ -1029,6 +1032,9 @@
              std::vector<media::audio::common::AudioMMapPolicyInfo>> mPolicyInfos;
     int32_t mAAudioBurstsPerBuffer = 0;
     int32_t mAAudioHwBurstMinMicros = 0;
+
+    /** Interface for interacting with the AudioService. */
+    mediautils::atomic_sp<IAudioManager>       mAudioManager;
 };
 
 #undef INCLUDING_FROM_AUDIOFLINGER_H
diff --git a/services/audioflinger/Effects.cpp b/services/audioflinger/Effects.cpp
index e6d7cf7..72c378d 100644
--- a/services/audioflinger/Effects.cpp
+++ b/services/audioflinger/Effects.cpp
@@ -569,7 +569,8 @@
       mMaxDisableWaitCnt(1), // set by configure(), should be >= 1
       mDisableWaitCnt(0),    // set by process() and updateState()
       mOffloaded(false),
-      mAddedToHal(false)
+      mAddedToHal(false),
+      mIsOutput(false)
 #ifdef FLOAT_EFFECT_CHAIN
       , mSupportsFloat(false)
 #endif
@@ -962,6 +963,7 @@
     mConfig.outputCfg.mask = EFFECT_CONFIG_ALL;
     mConfig.inputCfg.buffer.frameCount = callback->frameCount();
     mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount;
+    mIsOutput = callback->isOutput();
 
     ALOGV("configure() %p chain %p buffer %p framecount %zu",
           this, callback->chain().promote().get(),
@@ -980,7 +982,7 @@
 
 #ifdef MULTICHANNEL_EFFECT_CHAIN
     if (status != NO_ERROR &&
-            callback->isOutput() &&
+            mIsOutput &&
             (mConfig.inputCfg.channels != AUDIO_CHANNEL_OUT_STEREO
                     || mConfig.outputCfg.channels != AUDIO_CHANNEL_OUT_STEREO)) {
         // Older effects may require exact STEREO position mask.
@@ -1643,6 +1645,22 @@
     return status;
 }
 
+status_t AudioFlinger::EffectModule::getConfigs(
+        audio_config_base_t* inputCfg, audio_config_base_t* outputCfg, bool* isOutput) const {
+    Mutex::Autolock _l(mLock);
+    if (mConfig.inputCfg.mask == 0 || mConfig.outputCfg.mask == 0) {
+        return NO_INIT;
+    }
+    inputCfg->sample_rate = mConfig.inputCfg.samplingRate;
+    inputCfg->channel_mask = static_cast<audio_channel_mask_t>(mConfig.inputCfg.channels);
+    inputCfg->format = static_cast<audio_format_t>(mConfig.inputCfg.format);
+    outputCfg->sample_rate = mConfig.outputCfg.samplingRate;
+    outputCfg->channel_mask = static_cast<audio_channel_mask_t>(mConfig.outputCfg.channels);
+    outputCfg->format = static_cast<audio_format_t>(mConfig.outputCfg.format);
+    *isOutput = mIsOutput;
+    return NO_ERROR;
+}
+
 static std::string dumpInOutBuffer(bool isInput, const sp<EffectBufferHalInterface> &buffer) {
     std::stringstream ss;
 
@@ -1760,6 +1778,7 @@
 BINDER_METHOD_ENTRY(command) \
 BINDER_METHOD_ENTRY(disconnect) \
 BINDER_METHOD_ENTRY(getCblk) \
+BINDER_METHOD_ENTRY(getConfig) \
 
 // singleton for Binder Method Statistics for IEffect
 mediautils::MethodStatistics<int>& getIEffectStatistics() {
@@ -1803,6 +1822,13 @@
   *_aidl_return = (code); \
   return Status::ok();
 
+#define VALUE_OR_RETURN_STATUS_AS_OUT(exp)              \
+    ({                                                  \
+        auto _tmp = (exp);                              \
+        if (!_tmp.ok()) { RETURN(_tmp.error()); }       \
+        std::move(_tmp.value());                        \
+    })
+
 Status AudioFlinger::EffectHandle::enable(int32_t* _aidl_return)
 {
     AutoMutex _l(mLock);
@@ -1914,6 +1940,32 @@
     return Status::ok();
 }
 
+Status AudioFlinger::EffectHandle::getConfig(
+        media::EffectConfig* _config, int32_t* _aidl_return) {
+    AutoMutex _l(mLock);
+    sp<EffectBase> effect = mEffect.promote();
+    if (effect == nullptr || mDisconnected) {
+        RETURN(DEAD_OBJECT);
+    }
+    sp<EffectModule> effectModule = effect->asEffectModule();
+    if (effectModule == nullptr) {
+        RETURN(INVALID_OPERATION);
+    }
+    audio_config_base_t inputCfg = AUDIO_CONFIG_BASE_INITIALIZER;
+    audio_config_base_t outputCfg = AUDIO_CONFIG_BASE_INITIALIZER;
+    bool isOutput;
+    status_t status = effectModule->getConfigs(&inputCfg, &outputCfg, &isOutput);
+    if (status == NO_ERROR) {
+        constexpr bool isInput = false; // effects always use 'OUT' channel masks.
+        _config->inputCfg = VALUE_OR_RETURN_STATUS_AS_OUT(
+                legacy2aidl_audio_config_base_t_AudioConfigBase(inputCfg, isInput));
+        _config->outputCfg = VALUE_OR_RETURN_STATUS_AS_OUT(
+                legacy2aidl_audio_config_base_t_AudioConfigBase(outputCfg, isInput));
+        _config->isOnInputStream = !isOutput;
+    }
+    RETURN(status);
+}
+
 Status AudioFlinger::EffectHandle::command(int32_t cmdCode,
                        const std::vector<uint8_t>& cmdData,
                        int32_t maxResponseSize,
diff --git a/services/audioflinger/Effects.h b/services/audioflinger/Effects.h
index 42614cc..a89a814 100644
--- a/services/audioflinger/Effects.h
+++ b/services/audioflinger/Effects.h
@@ -283,6 +283,10 @@
     status_t         setHapticIntensity(int id, int intensity);
     status_t         setVibratorInfo(const media::AudioVibratorInfo& vibratorInfo);
 
+    status_t         getConfigs(audio_config_base_t* inputCfg,
+                                audio_config_base_t* outputCfg,
+                                bool* isOutput) const;
+
     void             dump(int fd, const Vector<String16>& args);
 
 private:
@@ -314,6 +318,7 @@
     uint32_t mDisableWaitCnt;       // current process() calls count during disable period.
     bool     mOffloaded;            // effect is currently offloaded to the audio DSP
     bool     mAddedToHal;           // effect has been added to the audio HAL
+    bool     mIsOutput;             // direction of the AF thread
 
 #ifdef FLOAT_EFFECT_CHAIN
     bool    mSupportsFloat;         // effect supports float processing
@@ -370,6 +375,8 @@
                                     int32_t* _aidl_return) override;
     android::binder::Status disconnect() override;
     android::binder::Status getCblk(media::SharedFileRegion* _aidl_return) override;
+    android::binder::Status getConfig(media::EffectConfig* _config,
+                                      int32_t* _aidl_return) override;
 
     sp<Client> client() const { return mClient; }
 
diff --git a/services/audioflinger/PlaybackTracks.h b/services/audioflinger/PlaybackTracks.h
index 6a138bb..e52d1ee 100644
--- a/services/audioflinger/PlaybackTracks.h
+++ b/services/audioflinger/PlaybackTracks.h
@@ -204,6 +204,12 @@
     float getSpeed() const { return mSpeed; }
     bool isSpatialized() const override { return mIsSpatialized; }
 
+    /**
+     * Updates the mute state and notifies the audio service. Call this only when holding player
+     * thread lock.
+     */
+    void processMuteEvent_l(const sp<IAudioManager>& audioManager, mute_state_t muteState);
+
 protected:
     // for numerous
     friend class PlaybackThread;
@@ -354,6 +360,11 @@
     TeePatches  mTeePatches;
     const float         mSpeed;
     const bool          mIsSpatialized;
+
+    // TODO: replace PersistableBundle with own struct
+    // access these two variables only when holding player thread lock.
+    std::unique_ptr<os::PersistableBundle> mMuteEventExtras;
+    mute_state_t        mMuteState;
 };  // end of Track
 
 
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 3d44aec..77e2421 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -31,6 +31,7 @@
 #include <sys/syscall.h>
 #include <cutils/bitops.h>
 #include <cutils/properties.h>
+#include <binder/PersistableBundle.h>
 #include <media/AudioContainers.h>
 #include <media/AudioDeviceTypeAddr.h>
 #include <media/AudioParameter.h>
@@ -4636,6 +4637,9 @@
     if (configChanged) {
         sendIoConfigEvent_l(AUDIO_OUTPUT_CONFIG_CHANGED);
     }
+    // Force meteadata update after a route change
+    mActiveTracks.setHasChanged();
+
     return status;
 }
 
@@ -4666,6 +4670,9 @@
     } else {
         status = mOutput->stream->legacyReleaseAudioPatch();
     }
+    // Force meteadata update after a route change
+    mActiveTracks.setHasChanged();
+
     return status;
 }
 
@@ -5369,6 +5376,12 @@
                     volume = masterVolume * mStreamTypes[track->streamType()].volume;
                 }
 
+                track->processMuteEvent_l(mAudioFlinger->getOrCreateAudioManager(),
+                    /*muteState=*/{masterVolume == 0.f,
+                                   mStreamTypes[track->streamType()].volume == 0.f,
+                                   mStreamTypes[track->streamType()].mute,
+                                   track->isPlaybackRestricted()});
+
                 handleVoipVolume_l(&volume);
 
                 // cache the combined master volume and stream type volume for fast mixer; this
@@ -5533,6 +5546,12 @@
                 v = 0;
             }
 
+            track->processMuteEvent_l(mAudioFlinger->getOrCreateAudioManager(),
+                /*muteState=*/{masterVolume == 0.f,
+                               mStreamTypes[track->streamType()].volume == 0.f,
+                               mStreamTypes[track->streamType()].mute,
+                               track->isPlaybackRestricted()});
+
             handleVoipVolume_l(&v);
 
             if (track->isPausing()) {
@@ -6163,6 +6182,12 @@
         right *= v * mMasterBalanceRight;
     }
 
+    track->processMuteEvent_l(mAudioFlinger->getOrCreateAudioManager(),
+        /*muteState=*/{mMasterMute,
+                       mStreamTypes[track->streamType()].volume == 0.f,
+                       mStreamTypes[track->streamType()].mute,
+                       track->isPlaybackRestricted()});
+
     if (lastTrack) {
         track->setFinalVolume((left + right) / 2.f);
         if (left != mLeftVolFloat || right != mRightVolFloat) {
@@ -9294,6 +9319,9 @@
         track->logEndInterval();
         track->logBeginInterval(pathSourcesAsString);
     }
+    // Force meteadata update after a route change
+    mActiveTracks.setHasChanged();
+
     return status;
 }
 
@@ -9310,6 +9338,9 @@
     } else {
         status = mInput->stream->legacyReleaseAudioPatch();
     }
+    // Force meteadata update after a route change
+    mActiveTracks.setHasChanged();
+
     return status;
 }
 
@@ -9606,8 +9637,10 @@
     return mHalStream->getMmapPosition(position);
 }
 
-status_t AudioFlinger::MmapThread::exitStandby()
+status_t AudioFlinger::MmapThread::exitStandby_l()
 {
+    // The HAL must receive track metadata before starting the stream
+    updateMetadata_l();
     status_t ret = mHalStream->start();
     if (ret != NO_ERROR) {
         ALOGE("%s: error mHalStream->start() = %d for first track", __FUNCTION__, ret);
@@ -9633,13 +9666,10 @@
 
     status_t ret;
 
+    // For the first track, reuse portId and session allocated when the stream was opened.
     if (*handle == mPortId) {
-        // For the first track, reuse portId and session allocated when the stream was opened.
-        ret = exitStandby();
-        if (ret == NO_ERROR) {
-            acquireWakeLock();
-        }
-        return ret;
+        acquireWakeLock();
+        return NO_ERROR;
     }
 
     audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE;
@@ -9741,7 +9771,6 @@
         }
     }
 
-
     mActiveTracks.add(track);
     sp<EffectChain> chain = getEffectChain_l(mSessionId);
     if (chain != 0) {
@@ -9752,11 +9781,16 @@
 
     track->logBeginInterval(patchSinksToString(&mPatch)); // log to MediaMetrics
     *handle = portId;
+
+    if (mActiveTracks.size() == 1) {
+        ret = exitStandby_l();
+    }
+
     broadcast_l();
 
-    ALOGV("%s DONE handle %d stream %p", __FUNCTION__, *handle, mHalStream.get());
+    ALOGV("%s DONE status %d handle %d stream %p", __FUNCTION__, ret, *handle, mHalStream.get());
 
-    return NO_ERROR;
+    return ret;
 }
 
 status_t AudioFlinger::MmapThread::stop(audio_port_handle_t handle)
@@ -9768,7 +9802,6 @@
     }
 
     if (handle == mPortId) {
-        mHalStream->stop();
         releaseWakeLock();
         return NO_ERROR;
     }
@@ -9805,6 +9838,10 @@
         chain->decTrackCnt();
     }
 
+    if (mActiveTracks.isEmpty()) {
+        mHalStream->stop();
+    }
+
     broadcast_l();
 
     return NO_ERROR;
@@ -10075,6 +10112,9 @@
         mPatch = *patch;
         mDeviceId = deviceId;
     }
+    // Force meteadata update after a route change
+    mActiveTracks.setHasChanged();
+
     return status;
 }
 
@@ -10094,6 +10134,9 @@
     } else {
         status = mHalStream->legacyReleaseAudioPatch();
     }
+    // Force meteadata update after a route change
+    mActiveTracks.setHasChanged();
+
     return status;
 }
 
@@ -10393,20 +10436,10 @@
         } else {
             sp<MmapStreamCallback> callback = mCallback.promote();
             if (callback != 0) {
-                int channelCount;
-                if (isOutput()) {
-                    channelCount = audio_channel_count_from_out_mask(mChannelMask);
-                } else {
-                    channelCount = audio_channel_count_from_in_mask(mChannelMask);
-                }
-                Vector<float> values;
-                for (int i = 0; i < channelCount; i++) {
-                    values.add(volume);
-                }
                 mHalVolFloat = volume; // SW volume control worked, so update value.
                 mNoCallbackWarningCount = 0;
                 mLock.unlock();
-                callback->onVolumeChanged(mChannelMask, values);
+                callback->onVolumeChanged(volume);
                 mLock.lock();
             } else {
                 if (mNoCallbackWarningCount < kMaxNoCallbackWarnings) {
@@ -10501,16 +10534,15 @@
     mChannelCount = audio_channel_count_from_in_mask(mChannelMask);
 }
 
-status_t AudioFlinger::MmapCaptureThread::exitStandby()
+status_t AudioFlinger::MmapCaptureThread::exitStandby_l()
 {
     {
         // mInput might have been cleared by clearInput()
-        Mutex::Autolock _l(mLock);
         if (mInput != nullptr && mInput->stream != nullptr) {
             mInput->stream->setGain(1.0f);
         }
     }
-    return MmapThread::exitStandby();
+    return MmapThread::exitStandby_l();
 }
 
 AudioFlinger::AudioStreamIn* AudioFlinger::MmapCaptureThread::clearInput()
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index ad5617d..b477d65 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -624,7 +624,7 @@
     virtual     void        dumpTracks_l(int fd __unused, const Vector<String16>& args __unused) { }
 
 
-    friend class AudioFlinger;      // for mEffectChains
+    friend class AudioFlinger;      // for mEffectChains and mAudioManager
 
                 const type_t            mType;
 
@@ -797,6 +797,11 @@
                      */
                     bool            readAndClearHasChanged();
 
+                    /** Force updating track metadata to audio HAL stream next time
+                     * readAndClearHasChanged() is called.
+                     */
+                    void            setHasChanged() { mHasChanged = true; }
+
                 private:
                     void            logTrack(const char *funcName, const sp<T> &track) const;
 
@@ -2088,7 +2093,7 @@
     virtual     void        threadLoop_exit();
     virtual     void        threadLoop_standby();
     virtual     bool        shouldStandby_l() { return false; }
-    virtual     status_t    exitStandby();
+    virtual     status_t    exitStandby_l() REQUIRES(mLock);
 
     virtual     status_t    initCheck() const { return (mHalStream == 0) ? NO_INIT : NO_ERROR; }
     virtual     size_t      frameCount() const { return mFrameCount; }
@@ -2239,7 +2244,7 @@
 
                 AudioStreamIn* clearInput();
 
-                status_t       exitStandby() override;
+                status_t       exitStandby_l() REQUIRES(mLock) override;
 
                 void           updateMetadata_l() override;
                 void           processVolume_l() override;
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index 95ca855..3f9c306 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -1494,6 +1494,39 @@
     }
 }
 
+// must be called with player thread lock held
+void AudioFlinger::PlaybackThread::Track::processMuteEvent_l(const sp<
+    IAudioManager>& audioManager, mute_state_t muteState)
+{
+    if (mMuteState == muteState) {
+        // mute state did not change, do nothing
+        return;
+    }
+
+    status_t result = UNKNOWN_ERROR;
+    if (audioManager && mPortId != AUDIO_PORT_HANDLE_NONE) {
+        if (mMuteEventExtras == nullptr) {
+            mMuteEventExtras = std::make_unique<os::PersistableBundle>();
+        }
+        mMuteEventExtras->putInt(String16(kExtraPlayerEventMuteKey),
+                                 static_cast<int>(muteState));
+
+        result = audioManager->portEvent(mPortId,
+                                         PLAYER_UPDATE_MUTED,
+                                         mMuteEventExtras);
+    }
+
+    if (result == OK) {
+        mMuteState = muteState;
+    } else {
+        ALOGW("%s(%d): cannot process mute state for port ID %d, status error %d",
+              __func__,
+              id(),
+              mPortId,
+              result);
+    }
+}
+
 status_t AudioFlinger::PlaybackThread::Track::getTimestamp(AudioTimestamp& timestamp)
 {
     if (!isOffloaded() && !isDirect()) {
@@ -1928,6 +1961,7 @@
         PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
         if ((mTrack->channelMask() & AUDIO_CHANNEL_HAPTIC_ALL) != AUDIO_CHANNEL_NONE
                 && playbackThread->mHapticChannelCount > 0) {
+            ALOGD("%s, haptic playback was muted for track %d", __func__, mTrack->id());
             mTrack->setHapticPlaybackEnabled(false);
             *ret = true;
         }
@@ -1945,6 +1979,7 @@
         PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
         if ((mTrack->channelMask() & AUDIO_CHANNEL_HAPTIC_ALL) != AUDIO_CHANNEL_NONE
                 && playbackThread->mHapticChannelCount > 0) {
+            ALOGD("%s, haptic playback was unmuted for track %d", __func__, mTrack->id());
             mTrack->setHapticPlaybackEnabled(true);
             *ret = true;
         }
diff --git a/services/audiopolicy/engine/common/src/EngineDefaultConfig.h b/services/audiopolicy/engine/common/src/EngineDefaultConfig.h
index b036e12..60b16ac 100644
--- a/services/audiopolicy/engine/common/src/EngineDefaultConfig.h
+++ b/services/audiopolicy/engine/common/src/EngineDefaultConfig.h
@@ -25,11 +25,11 @@
 const engineConfig::ProductStrategies gOrderedStrategies = {
     {"STRATEGY_PHONE",
      {
-         {"phone", AUDIO_STREAM_VOICE_CALL, "AUDIO_STREAM_VOICE_CALL",
+         {AUDIO_STREAM_VOICE_CALL, "AUDIO_STREAM_VOICE_CALL",
           {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_VOICE_COMMUNICATION, AUDIO_SOURCE_DEFAULT,
             AUDIO_FLAG_NONE, ""}},
          },
-         {"sco", AUDIO_STREAM_BLUETOOTH_SCO, "AUDIO_STREAM_BLUETOOTH_SCO",
+         {AUDIO_STREAM_BLUETOOTH_SCO, "AUDIO_STREAM_BLUETOOTH_SCO",
           {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_UNKNOWN, AUDIO_SOURCE_DEFAULT, AUDIO_FLAG_SCO,
             ""}},
          }
@@ -37,11 +37,11 @@
     },
     {"STRATEGY_SONIFICATION",
      {
-         {"ring", AUDIO_STREAM_RING, "AUDIO_STREAM_RING",
+         {AUDIO_STREAM_RING, "AUDIO_STREAM_RING",
           {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE,
             AUDIO_SOURCE_DEFAULT, AUDIO_FLAG_NONE, ""}}
          },
-         {"alarm", AUDIO_STREAM_ALARM, "AUDIO_STREAM_ALARM",
+         {AUDIO_STREAM_ALARM, "AUDIO_STREAM_ALARM",
           {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_ALARM, AUDIO_SOURCE_DEFAULT,
             AUDIO_FLAG_NONE, ""}},
          }
@@ -49,7 +49,7 @@
     },
     {"STRATEGY_ENFORCED_AUDIBLE",
      {
-         {"", AUDIO_STREAM_ENFORCED_AUDIBLE, "AUDIO_STREAM_ENFORCED_AUDIBLE",
+         {AUDIO_STREAM_ENFORCED_AUDIBLE, "AUDIO_STREAM_ENFORCED_AUDIBLE",
           {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_UNKNOWN, AUDIO_SOURCE_DEFAULT,
             AUDIO_FLAG_AUDIBILITY_ENFORCED, ""}}
          }
@@ -57,7 +57,7 @@
     },
     {"STRATEGY_ACCESSIBILITY",
      {
-         {"", AUDIO_STREAM_ACCESSIBILITY, "AUDIO_STREAM_ACCESSIBILITY",
+         {AUDIO_STREAM_ACCESSIBILITY, "AUDIO_STREAM_ACCESSIBILITY",
           {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY,
             AUDIO_SOURCE_DEFAULT, AUDIO_FLAG_NONE, ""}}
          }
@@ -65,7 +65,7 @@
     },
     {"STRATEGY_SONIFICATION_RESPECTFUL",
      {
-         {"", AUDIO_STREAM_NOTIFICATION, "AUDIO_STREAM_NOTIFICATION",
+         {AUDIO_STREAM_NOTIFICATION, "AUDIO_STREAM_NOTIFICATION",
           {
               {AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_NOTIFICATION, AUDIO_SOURCE_DEFAULT,
                AUDIO_FLAG_NONE, ""},
@@ -77,11 +77,11 @@
     },
     {"STRATEGY_MEDIA",
      {
-         {"assistant", AUDIO_STREAM_ASSISTANT, "AUDIO_STREAM_ASSISTANT",
+         {AUDIO_STREAM_ASSISTANT, "AUDIO_STREAM_ASSISTANT",
           {{AUDIO_CONTENT_TYPE_SPEECH, AUDIO_USAGE_ASSISTANT,
             AUDIO_SOURCE_DEFAULT, AUDIO_FLAG_NONE, ""}}
          },
-         {"music", AUDIO_STREAM_MUSIC, "AUDIO_STREAM_MUSIC",
+         {AUDIO_STREAM_MUSIC, "AUDIO_STREAM_MUSIC",
           {
               {AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_MEDIA, AUDIO_SOURCE_DEFAULT,
                AUDIO_FLAG_NONE, ""},
@@ -95,7 +95,7 @@
                AUDIO_FLAG_NONE, ""}
           },
          },
-         {"system", AUDIO_STREAM_SYSTEM, "AUDIO_STREAM_SYSTEM",
+         {AUDIO_STREAM_SYSTEM, "AUDIO_STREAM_SYSTEM",
           {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_ASSISTANCE_SONIFICATION,
             AUDIO_SOURCE_DEFAULT, AUDIO_FLAG_NONE, ""}}
          }
@@ -103,7 +103,7 @@
     },
     {"STRATEGY_DTMF",
      {
-         {"", AUDIO_STREAM_DTMF, "AUDIO_STREAM_DTMF",
+         {AUDIO_STREAM_DTMF, "AUDIO_STREAM_DTMF",
           {
               {AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING,
                AUDIO_SOURCE_DEFAULT, AUDIO_FLAG_NONE, ""}
@@ -113,7 +113,7 @@
     },
     {"STRATEGY_CALL_ASSISTANT",
      {
-         {"", AUDIO_STREAM_CALL_ASSISTANT, "AUDIO_STREAM_CALL_ASSISTANT",
+         {AUDIO_STREAM_CALL_ASSISTANT, "AUDIO_STREAM_CALL_ASSISTANT",
           {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_CALL_ASSISTANT, AUDIO_SOURCE_DEFAULT,
             AUDIO_FLAG_NONE, ""}}
          }
@@ -121,7 +121,7 @@
     },
     {"STRATEGY_TRANSMITTED_THROUGH_SPEAKER",
      {
-         {"", AUDIO_STREAM_TTS, "AUDIO_STREAM_TTS",
+         {AUDIO_STREAM_TTS, "AUDIO_STREAM_TTS",
           {
               {AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_UNKNOWN, AUDIO_SOURCE_DEFAULT,
                 AUDIO_FLAG_BEACON, ""},
@@ -140,7 +140,7 @@
 const engineConfig::ProductStrategies gOrderedSystemStrategies = {
     {"rerouting",
      {
-         {"", AUDIO_STREAM_REROUTING, "AUDIO_STREAM_REROUTING",
+         {AUDIO_STREAM_REROUTING, "AUDIO_STREAM_REROUTING",
           {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_VIRTUAL_SOURCE, AUDIO_SOURCE_DEFAULT,
             AUDIO_FLAG_NONE, ""}}
          }
@@ -148,7 +148,7 @@
     },
     {"patch",
      {
-         {"", AUDIO_STREAM_PATCH, "AUDIO_STREAM_PATCH",
+         {AUDIO_STREAM_PATCH, "AUDIO_STREAM_PATCH",
           {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_UNKNOWN, AUDIO_SOURCE_DEFAULT,
             AUDIO_FLAG_NONE, ""}}
          }
diff --git a/services/audiopolicy/engine/config/include/EngineConfig.h b/services/audiopolicy/engine/config/include/EngineConfig.h
index 2ebb7df..8036eea 100644
--- a/services/audiopolicy/engine/config/include/EngineConfig.h
+++ b/services/audiopolicy/engine/config/include/EngineConfig.h
@@ -35,7 +35,6 @@
 using StreamVector = std::vector<audio_stream_type_t>;
 
 struct AttributesGroup {
-    std::string name;
     audio_stream_type_t stream;
     std::string volumeGroup;
     AttributesVector attributesVect;
diff --git a/services/audiopolicy/engine/config/src/EngineConfig.cpp b/services/audiopolicy/engine/config/src/EngineConfig.cpp
index 6f560d5..ac117f0 100644
--- a/services/audiopolicy/engine/config/src/EngineConfig.cpp
+++ b/services/audiopolicy/engine/config/src/EngineConfig.cpp
@@ -57,7 +57,6 @@
     static constexpr const char *collectionTag = "AttributesGroups";
 
     struct Attributes {
-        static constexpr const char *name = "name";
         static constexpr const char *streamType = "streamType";
         static constexpr const char *volumeGroup = "volumeGroup";
     };
@@ -313,12 +312,6 @@
 status_t AttributesGroupTraits::deserialize(_xmlDoc *doc, const _xmlNode *child,
                                             Collection &attributesGroup)
 {
-    std::string name = getXmlAttribute(child, Attributes::name);
-    if (name.empty()) {
-        ALOGV("AttributesGroupTraits No attribute %s found", Attributes::name);
-    }
-    ALOGV("%s: %s = %s", __FUNCTION__, Attributes::name, name.c_str());
-
     std::string volumeGroup = getXmlAttribute(child, Attributes::volumeGroup);
     if (volumeGroup.empty()) {
         ALOGE("%s: No attribute %s found", __FUNCTION__, Attributes::volumeGroup);
@@ -339,7 +332,7 @@
     AttributesVector attributesVect;
     deserializeAttributesCollection(doc, child, attributesVect);
 
-    attributesGroup.push_back({name, streamType, volumeGroup, attributesVect});
+    attributesGroup.push_back({streamType, volumeGroup, attributesVect});
     return NO_ERROR;
 }
 
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
index 08d6453..d67e6c4 100644
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -78,7 +78,7 @@
     case AUDIO_POLICY_FORCE_FOR_COMMUNICATION:
         if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO &&
             config != AUDIO_POLICY_FORCE_NONE) {
-            ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config);
+            ALOGW("setForceUse() invalid config %d for COMMUNICATION", config);
             return BAD_VALUE;
         }
         break;
@@ -88,14 +88,14 @@
             config != AUDIO_POLICY_FORCE_ANALOG_DOCK &&
             config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE &&
             config != AUDIO_POLICY_FORCE_NO_BT_A2DP && config != AUDIO_POLICY_FORCE_SPEAKER ) {
-            ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config);
+            ALOGW("setForceUse() invalid config %d for MEDIA", config);
             return BAD_VALUE;
         }
         break;
     case AUDIO_POLICY_FORCE_FOR_RECORD:
         if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY &&
             config != AUDIO_POLICY_FORCE_NONE) {
-            ALOGW("setForceUse() invalid config %d for FOR_RECORD", config);
+            ALOGW("setForceUse() invalid config %d for RECORD", config);
             return BAD_VALUE;
         }
         break;
@@ -105,19 +105,22 @@
             config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY &&
             config != AUDIO_POLICY_FORCE_ANALOG_DOCK &&
             config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) {
-            ALOGW("setForceUse() invalid config %d for FOR_DOCK", config);
+            ALOGW("setForceUse() invalid config %d for DOCK", config);
+            return BAD_VALUE;
         }
         break;
     case AUDIO_POLICY_FORCE_FOR_SYSTEM:
         if (config != AUDIO_POLICY_FORCE_NONE &&
             config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) {
-            ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config);
+            ALOGW("setForceUse() invalid config %d for SYSTEM", config);
+            return BAD_VALUE;
         }
         break;
     case AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO:
         if (config != AUDIO_POLICY_FORCE_NONE &&
             config != AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED) {
             ALOGW("setForceUse() invalid config %d for HDMI_SYSTEM_AUDIO", config);
+            return BAD_VALUE;
         }
         break;
     case AUDIO_POLICY_FORCE_FOR_ENCODED_SURROUND:
@@ -131,13 +134,13 @@
         break;
     case AUDIO_POLICY_FORCE_FOR_VIBRATE_RINGING:
         if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_NONE) {
-            ALOGW("setForceUse() invalid config %d for FOR_VIBRATE_RINGING", config);
+            ALOGW("setForceUse() invalid config %d for VIBRATE_RINGING", config);
             return BAD_VALUE;
         }
         break;
     default:
         ALOGW("setForceUse() invalid usage %d", usage);
-        break; // TODO return BAD_VALUE?
+        return BAD_VALUE;
     }
     return EngineBase::setForceUse(usage, config);
 }
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 8589984..c21c6a2 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -140,8 +140,6 @@
 status_t AudioPolicyManager::setDeviceConnectionStateInt(
         audio_policy_dev_state_t state, const android::media::audio::common::AudioPort& port,
         audio_format_t encodedFormat) {
-    // TODO: b/211601178 Forward 'port' to Audio HAL via mHwModules. For now, only device_type,
-    // device_address and device_name are forwarded.
     if (port.ext.getTag() != AudioPortExt::device) {
         return BAD_VALUE;
     }
@@ -160,7 +158,13 @@
     sp<DeviceDescriptor> device = mHwModules.getDeviceDescriptor(
             device_type, device_address.c_str(), device_name, encodedFormat,
             state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE);
-    return device ? setDeviceConnectionStateInt(device, state) : INVALID_OPERATION;
+    if (device == nullptr) {
+        return INVALID_OPERATION;
+    }
+    if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) {
+        device->setExtraAudioDescriptors(port.extraAudioDescriptors);
+    }
+    return setDeviceConnectionStateInt(device, state);
 }
 
 status_t AudioPolicyManager::setDeviceConnectionStateInt(audio_devices_t deviceType,
@@ -2607,31 +2611,19 @@
         flags = (audio_input_flags_t)(flags | AUDIO_INPUT_FLAG_ULTRASOUND);
     }
 
-    // find a compatible input profile (not necessarily identical in parameters)
-    sp<IOProfile> profile;
     // sampling rate and flags may be updated by getInputProfile
     uint32_t profileSamplingRate = (config->sample_rate == 0) ?
             SAMPLE_RATE_HZ_DEFAULT : config->sample_rate;
-    audio_format_t profileFormat;
+    audio_format_t profileFormat = config->format;
     audio_channel_mask_t profileChannelMask = config->channel_mask;
     audio_input_flags_t profileFlags = flags;
-    for (;;) {
-        profileFormat = config->format; // reset each time through loop, in case it is updated
-        profile = getInputProfile(device, profileSamplingRate, profileFormat, profileChannelMask,
-                                  profileFlags);
-        if (profile != 0) {
-            break; // success
-        } else if (profileFlags & AUDIO_INPUT_FLAG_RAW) {
-            profileFlags = (audio_input_flags_t) (profileFlags & ~AUDIO_INPUT_FLAG_RAW); // retry
-        } else if (profileFlags != AUDIO_INPUT_FLAG_NONE && audio_is_linear_pcm(config->format)) {
-            profileFlags = AUDIO_INPUT_FLAG_NONE; // retry
-        } else { // fail
-            ALOGW("%s could not find profile for device %s, sampling rate %u, format %#x, "
-                  "channel mask 0x%X, flags %#x", __func__, device->toString().c_str(),
-                  config->sample_rate, config->format, config->channel_mask, flags);
-            return input;
-        }
+    // find a compatible input profile (not necessarily identical in parameters)
+    sp<IOProfile> profile = getInputProfile(
+            device, profileSamplingRate, profileFormat, profileChannelMask, profileFlags);
+    if (profile == nullptr) {
+        return input;
     }
+
     // Pick input sampling rate if not specified by client
     uint32_t samplingRate = config->sample_rate;
     if (samplingRate == 0) {
@@ -4539,7 +4531,11 @@
                     audio_attributes_t resultAttr;
                     audio_config_t config = AUDIO_CONFIG_INITIALIZER;
                     config.sample_rate = sourceDesc->config().sample_rate;
-                    config.channel_mask = sourceDesc->config().channel_mask;
+                    audio_channel_mask_t sourceMask = sourceDesc->config().channel_mask;
+                    config.channel_mask =
+                            (audio_channel_mask_get_representation(sourceMask)
+                                == AUDIO_CHANNEL_REPRESENTATION_INDEX) ? sourceMask
+                                    : audio_channel_mask_in_to_out(sourceMask);
                     config.format = sourceDesc->config().format;
                     audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE;
                     audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE;
@@ -7102,51 +7098,68 @@
 {
     // Choose an input profile based on the requested capture parameters: select the first available
     // profile supporting all requested parameters.
+    // The flags can be ignored if it doesn't contain a much match flag.
     //
     // TODO: perhaps isCompatibleProfile should return a "matching" score so we can return
     // the best matching profile, not the first one.
 
-    sp<IOProfile> firstInexact;
-    uint32_t updatedSamplingRate = 0;
-    audio_format_t updatedFormat = AUDIO_FORMAT_INVALID;
-    audio_channel_mask_t updatedChannelMask = AUDIO_CHANNEL_INVALID;
-    for (const auto& hwModule : mHwModules) {
-        for (const auto& profile : hwModule->getInputProfiles()) {
-            // profile->log();
-            //updatedFormat = format;
-            if (profile->isCompatibleProfile(DeviceVector(device), samplingRate,
-                                             &samplingRate  /*updatedSamplingRate*/,
-                                             format,
-                                             &format,       /*updatedFormat*/
-                                             channelMask,
-                                             &channelMask   /*updatedChannelMask*/,
-                                             // FIXME ugly cast
-                                             (audio_output_flags_t) flags,
-                                             true /*exactMatchRequiredForInputFlags*/)) {
-                return profile;
-            }
-            if (firstInexact == nullptr && profile->isCompatibleProfile(DeviceVector(device),
-                                             samplingRate,
-                                             &updatedSamplingRate,
-                                             format,
-                                             &updatedFormat,
-                                             channelMask,
-                                             &updatedChannelMask,
-                                             // FIXME ugly cast
-                                             (audio_output_flags_t) flags,
-                                             false /*exactMatchRequiredForInputFlags*/)) {
-                firstInexact = profile;
-            }
+    const audio_input_flags_t mustMatchFlag = AUDIO_INPUT_FLAG_MMAP_NOIRQ;
+    const audio_input_flags_t oriFlags = flags;
 
+    for (;;) {
+        sp<IOProfile> firstInexact = nullptr;
+        uint32_t updatedSamplingRate = 0;
+        audio_format_t updatedFormat = AUDIO_FORMAT_INVALID;
+        audio_channel_mask_t updatedChannelMask = AUDIO_CHANNEL_INVALID;
+        for (const auto& hwModule : mHwModules) {
+            for (const auto& profile : hwModule->getInputProfiles()) {
+                // profile->log();
+                //updatedFormat = format;
+                if (profile->isCompatibleProfile(DeviceVector(device), samplingRate,
+                                                 &samplingRate  /*updatedSamplingRate*/,
+                                                 format,
+                                                 &format,       /*updatedFormat*/
+                                                 channelMask,
+                                                 &channelMask   /*updatedChannelMask*/,
+                                                 // FIXME ugly cast
+                                                 (audio_output_flags_t) flags,
+                                                 true /*exactMatchRequiredForInputFlags*/)) {
+                    return profile;
+                }
+                if (firstInexact == nullptr && profile->isCompatibleProfile(DeviceVector(device),
+                                                 samplingRate,
+                                                 &updatedSamplingRate,
+                                                 format,
+                                                 &updatedFormat,
+                                                 channelMask,
+                                                 &updatedChannelMask,
+                                                 // FIXME ugly cast
+                                                 (audio_output_flags_t) flags,
+                                                 false /*exactMatchRequiredForInputFlags*/)) {
+                    firstInexact = profile;
+                }
+            }
+        }
+
+        if (firstInexact != nullptr) {
+            samplingRate = updatedSamplingRate;
+            format = updatedFormat;
+            channelMask = updatedChannelMask;
+            return firstInexact;
+        } else if (flags & AUDIO_INPUT_FLAG_RAW) {
+            flags = (audio_input_flags_t) (flags & ~AUDIO_INPUT_FLAG_RAW); // retry
+        } else if ((flags & mustMatchFlag) == AUDIO_INPUT_FLAG_NONE &&
+                flags != AUDIO_INPUT_FLAG_NONE && audio_is_linear_pcm(format)) {
+            flags = AUDIO_INPUT_FLAG_NONE;
+        } else { // fail
+            ALOGW("%s could not find profile for device %s, sampling rate %u, format %#x, "
+                  "channel mask 0x%X, flags %#x", __func__, device->toString().c_str(),
+                  samplingRate, format, channelMask, oriFlags);
+            break;
         }
     }
-    if (firstInexact != nullptr) {
-        samplingRate = updatedSamplingRate;
-        format = updatedFormat;
-        channelMask = updatedChannelMask;
-        return firstInexact;
-    }
-    return NULL;
+
+    return nullptr;
 }
 
 float AudioPolicyManager::computeVolume(IVolumeCurves &curves,
diff --git a/services/audiopolicy/service/AudioPolicyEffects.cpp b/services/audiopolicy/service/AudioPolicyEffects.cpp
index 70fdfcb..c7a60c2 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.cpp
+++ b/services/audiopolicy/service/AudioPolicyEffects.cpp
@@ -127,7 +127,8 @@
             attributionSource.packageName = "android";
             attributionSource.token = sp<BBinder>::make();
             sp<AudioEffect> fx = new AudioEffect(attributionSource);
-            fx->set(NULL, &effect->mUuid, -1, 0, 0, audioSession, input);
+            fx->set(nullptr /*type */, &effect->mUuid, -1 /* priority */, nullptr /* callback */,
+                    audioSession, input);
             status_t status = fx->initCheck();
             if (status != NO_ERROR && status != ALREADY_EXISTS) {
                 ALOGW("addInputEffects(): failed to create Fx %s on source %d",
@@ -279,7 +280,8 @@
             attributionSource.packageName = "android";
             attributionSource.token = sp<BBinder>::make();
             sp<AudioEffect> fx = new AudioEffect(attributionSource);
-            fx->set(NULL, &effect->mUuid, 0, 0, 0, audioSession, output);
+            fx->set(nullptr /* type */, &effect->mUuid, 0 /* priority */, nullptr /* callback */,
+                    audioSession, output);
             status_t status = fx->initCheck();
             if (status != NO_ERROR && status != ALREADY_EXISTS) {
                 ALOGE("addOutputSessionEffects(): failed to create Fx  %s on session %d",
@@ -984,8 +986,8 @@
             attributionSource.packageName = "android";
             attributionSource.token = sp<BBinder>::make();
             sp<AudioEffect> fx = new AudioEffect(attributionSource);
-            fx->set(EFFECT_UUID_NULL, &effectDesc->mUuid, 0, nullptr,
-                    nullptr, AUDIO_SESSION_DEVICE, AUDIO_IO_HANDLE_NONE,
+            fx->set(EFFECT_UUID_NULL, &effectDesc->mUuid, 0 /* priority */, nullptr /* callback */,
+                    AUDIO_SESSION_DEVICE, AUDIO_IO_HANDLE_NONE,
                     AudioDeviceTypeAddr{deviceEffects->getDeviceType(),
                                         deviceEffects->getDeviceAddress()});
             status_t status = fx->initCheck();
diff --git a/services/audiopolicy/service/Spatializer.cpp b/services/audiopolicy/service/Spatializer.cpp
index 9f0a901..20c7a5d 100644
--- a/services/audiopolicy/service/Spatializer.cpp
+++ b/services/audiopolicy/service/Spatializer.cpp
@@ -735,9 +735,10 @@
         // create FX instance on output
         AttributionSourceState attributionSource = AttributionSourceState();
         mEngine = new AudioEffect(attributionSource);
-        mEngine->set(nullptr, &mEngineDescriptor.uuid, 0, Spatializer::engineCallback /* cbf */,
-                     this /* user */, AUDIO_SESSION_OUTPUT_STAGE, output, {} /* device */,
-                     false /* probe */, true /* notifyFramesProcessed */);
+        mEngine->set(nullptr /* type */, &mEngineDescriptor.uuid, 0 /* priority */,
+                     wp<AudioEffect::IAudioEffectCallback>::fromExisting(this),
+                     AUDIO_SESSION_OUTPUT_STAGE, output, {} /* device */, false /* probe */,
+                     true /* notifyFramesProcessed */);
         status_t status = mEngine->initCheck();
         ALOGV("%s mEngine create status %d", __func__, (int)status);
         if (status != NO_ERROR) {
@@ -891,27 +892,10 @@
     }
 }
 
-void Spatializer::engineCallback(int32_t event, void *user, void *info) {
-    if (user == nullptr) {
-        return;
-    }
-    Spatializer* const me = reinterpret_cast<Spatializer *>(user);
-    switch (event) {
-        case AudioEffect::EVENT_FRAMES_PROCESSED: {
-            int frames = info == nullptr ? 0 : *(int*)info;
-            ALOGV("%s frames processed %d for me %p", __func__, frames, me);
-            me->postFramesProcessedMsg(frames);
-        } break;
-        default:
-            ALOGV("%s event %d", __func__, event);
-            break;
-    }
-}
-
-void Spatializer::postFramesProcessedMsg(int frames) {
+void Spatializer::onFramesProcessed(int32_t framesProcessed) {
     sp<AMessage> msg =
             new AMessage(EngineCallbackHandler::kWhatOnFramesProcessed, mHandler);
-    msg->setInt32(EngineCallbackHandler::kNumFramesKey, frames);
+    msg->setInt32(EngineCallbackHandler::kNumFramesKey, framesProcessed);
     msg->post();
 }
 
diff --git a/services/audiopolicy/service/Spatializer.h b/services/audiopolicy/service/Spatializer.h
index a7d9f32..bc95fe4 100644
--- a/services/audiopolicy/service/Spatializer.h
+++ b/services/audiopolicy/service/Spatializer.h
@@ -84,6 +84,7 @@
  * spatializer mixer thread is destroyed.
  */
 class Spatializer : public media::BnSpatializer,
+                    public AudioEffect::IAudioEffectCallback,
                     public IBinder::DeathRecipient,
                     private SpatializerPoseController::Listener,
                     public virtual AudioSystem::SupportedLatencyModesCallback {
@@ -281,7 +282,7 @@
         return NO_ERROR;
     }
 
-    void postFramesProcessedMsg(int frames);
+    virtual void onFramesProcessed(int32_t framesProcessed) override;
 
     /**
      * Checks if head and screen sensors must be actively monitored based on
diff --git a/services/audiopolicy/service/SpatializerPoseController.cpp b/services/audiopolicy/service/SpatializerPoseController.cpp
index 304d44a..23bcd77 100644
--- a/services/audiopolicy/service/SpatializerPoseController.cpp
+++ b/services/audiopolicy/service/SpatializerPoseController.cpp
@@ -100,7 +100,10 @@
               .screenStillnessRotationalThreshold = kScreenStillnessRotationThreshold,
       })),
       mPoseProvider(SensorPoseProvider::create("headtracker", this)),
-      mThread([this, maxUpdatePeriod] {
+      mThread([this, maxUpdatePeriod] { // It's important that mThread is initialized after
+                                        // everything else because it runs a member
+                                        // function that may use any member
+                                        // of this class.
           while (true) {
               Pose3f headToStage;
               std::optional<HeadTrackingMode> modeIfChanged;
diff --git a/services/audiopolicy/service/SpatializerPoseController.h b/services/audiopolicy/service/SpatializerPoseController.h
index 2c6d79a..f199ecb 100644
--- a/services/audiopolicy/service/SpatializerPoseController.h
+++ b/services/audiopolicy/service/SpatializerPoseController.h
@@ -123,12 +123,15 @@
     int32_t mHeadSensor = media::SensorPoseProvider::INVALID_HANDLE;
     int32_t mScreenSensor = media::SensorPoseProvider::INVALID_HANDLE;
     std::optional<media::HeadTrackingMode> mActualMode;
-    std::thread mThread;
     std::condition_variable mCondVar;
     bool mShouldCalculate = true;
     bool mShouldExit = false;
     bool mCalculated = false;
 
+    // It's important that mThread is the last variable in this class
+    // since we starts mThread in initializer list
+    std::thread mThread;
+
     void onPose(int64_t timestamp, int32_t sensor, const media::Pose3f& pose,
                 const std::optional<media::Twist3f>& twist, bool isNewReference) override;
 
diff --git a/services/audiopolicy/tests/Android.bp b/services/audiopolicy/tests/Android.bp
index 2e220bc..e887798 100644
--- a/services/audiopolicy/tests/Android.bp
+++ b/services/audiopolicy/tests/Android.bp
@@ -30,6 +30,8 @@
     ],
 
     static_libs: [
+        "android.media.audio.common.types-V1-cpp",
+        "audioclient-types-aidl-cpp",
         "libaudiopolicycomponents",
         "libgmock",
     ],
diff --git a/services/audiopolicy/tests/AudioPolicyManagerTestClient.h b/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
index 057fa58..96f58d2 100644
--- a/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
+++ b/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
@@ -103,8 +103,12 @@
         ++mAudioPortListUpdateCount;
     }
 
-    status_t setDeviceConnectedState(
-            const struct audio_port_v7 *port __unused, bool connected __unused) override {
+    status_t setDeviceConnectedState(const struct audio_port_v7 *port, bool connected) override {
+        if (connected) {
+            mConnectedDevicePorts.push_back(*port);
+        } else {
+            mDisconnectedDevicePorts.push_back(*port);
+        }
         return NO_ERROR;
     }
 
@@ -150,6 +154,30 @@
         return NO_ERROR;
     }
 
+    size_t getConnectedDevicePortCount() const {
+        return mConnectedDevicePorts.size();
+    }
+
+    const struct audio_port_v7 *getLastConnectedDevicePort() const {
+        if (mConnectedDevicePorts.empty()) {
+            return nullptr;
+        }
+        auto it = --mConnectedDevicePorts.end();
+        return &(*it);
+    }
+
+    size_t getDisconnectedDevicePortCount() const {
+        return mDisconnectedDevicePorts.size();
+    }
+
+    const struct audio_port_v7 *getLastDisconnectedDevicePort() const {
+        if (mDisconnectedDevicePorts.empty()) {
+            return nullptr;
+        }
+        auto it = --mDisconnectedDevicePorts.end();
+        return &(*it);
+    }
+
 private:
     audio_module_handle_t mNextModuleHandle = AUDIO_MODULE_HANDLE_NONE + 1;
     audio_io_handle_t mNextIoHandle = AUDIO_IO_HANDLE_NONE + 1;
@@ -158,6 +186,8 @@
     std::set<std::string> mAllowedModuleNames;
     size_t mAudioPortListUpdateCount = 0;
     size_t mRoutingUpdatedUpdateCount = 0;
+    std::vector<struct audio_port_v7> mConnectedDevicePorts;
+    std::vector<struct audio_port_v7> mDisconnectedDevicePorts;
 };
 
 } // namespace android
diff --git a/services/audiopolicy/tests/AudioPolicyTestManager.h b/services/audiopolicy/tests/AudioPolicyTestManager.h
index 7441f20..2a7a060 100644
--- a/services/audiopolicy/tests/AudioPolicyTestManager.h
+++ b/services/audiopolicy/tests/AudioPolicyTestManager.h
@@ -37,6 +37,7 @@
     using AudioPolicyManager::getDirectProfilesForAttributes;
     using AudioPolicyManager::setDeviceConnectionState;
     using AudioPolicyManager::deviceToAudioPort;
+    using AudioPolicyManager::handleDeviceConfigChange;
     uint32_t getAudioPortGeneration() const { return mAudioPortGeneration; }
 };
 
diff --git a/services/audiopolicy/tests/audiopolicymanager_tests.cpp b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
index 43b1a2a..bb00c48 100644
--- a/services/audiopolicy/tests/audiopolicymanager_tests.cpp
+++ b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
@@ -919,6 +919,30 @@
     EXPECT_TRUE(foundVoipTx);
 }
 
+TEST_F(AudioPolicyManagerTestWithConfigurationFile, HandleDeviceConfigChange) {
+    {
+        const auto prevCounter = mClient->getRoutingUpdatedCounter();
+
+        EXPECT_EQ(NO_ERROR, mManager->setDeviceConnectionState(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP,
+                                                               AUDIO_POLICY_DEVICE_STATE_AVAILABLE,
+                                                               "", "", AUDIO_FORMAT_LDAC));
+        const auto currCounter = mClient->getRoutingUpdatedCounter();
+        EXPECT_GT(currCounter, prevCounter);
+    }
+    {
+        const auto prevCounter = mClient->getRoutingUpdatedCounter();
+        // Update device configuration
+        EXPECT_EQ(NO_ERROR, mManager->handleDeviceConfigChange(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP,
+                                                               "" /*address*/, "" /*name*/,
+                                                               AUDIO_FORMAT_AAC));
+
+        // As mClient marks isReconfigA2dpSupported to false, device state needs to be toggled for
+        // config changes to take effect
+        const auto currCounter = mClient->getRoutingUpdatedCounter();
+        EXPECT_GT(currCounter, prevCounter);
+    }
+}
+
 using PolicyMixTuple = std::tuple<audio_usage_t, audio_source_t, uint32_t>;
 
 class AudioPolicyManagerTestDynamicPolicy : public AudioPolicyManagerTestWithConfigurationFile {
@@ -1700,6 +1724,45 @@
             address.c_str(), name.c_str(), AUDIO_FORMAT_DEFAULT));
 }
 
+android::media::audio::common::ExtraAudioDescriptor make_ExtraAudioDescriptor(
+        android::media::audio::common::AudioStandard audioStandard,
+        android::media::audio::common::AudioEncapsulationType audioEncapsulationType) {
+    android::media::audio::common::ExtraAudioDescriptor result;
+    result.standard = audioStandard;
+    result.audioDescriptor = {0xb4, 0xaf, 0x98, 0x1a};
+    result.encapsulationType = audioEncapsulationType;
+    return result;
+}
+
+TEST_P(AudioPolicyManagerTestDeviceConnection, PassingExtraAudioDescriptors) {
+    const audio_devices_t type = std::get<0>(GetParam());
+    if (!audio_device_is_digital(type)) {
+        // EADs are used only for HDMI devices.
+        GTEST_SKIP() << "Not a digital device type: " << audio_device_to_string(type);
+    }
+    const std::string name = std::get<1>(GetParam());
+    const std::string address = std::get<2>(GetParam());
+    android::media::AudioPort audioPort;
+    ASSERT_EQ(NO_ERROR,
+            mManager->deviceToAudioPort(type, address.c_str(), name.c_str(), &audioPort));
+    android::media::audio::common::AudioPort& port = audioPort.hal;
+    port.extraAudioDescriptors.push_back(make_ExtraAudioDescriptor(
+                    android::media::audio::common::AudioStandard::EDID,
+                    android::media::audio::common::AudioEncapsulationType::IEC61937));
+    const size_t lastConnectedDevicePortCount = mClient->getConnectedDevicePortCount();
+    const size_t lastDisconnectedDevicePortCount = mClient->getDisconnectedDevicePortCount();
+    EXPECT_EQ(NO_ERROR, mManager->setDeviceConnectionState(
+                    AUDIO_POLICY_DEVICE_STATE_AVAILABLE, port, AUDIO_FORMAT_DEFAULT));
+    EXPECT_EQ(lastConnectedDevicePortCount + 1, mClient->getConnectedDevicePortCount());
+    EXPECT_EQ(lastDisconnectedDevicePortCount, mClient->getDisconnectedDevicePortCount());
+    const audio_port_v7* devicePort = mClient->getLastConnectedDevicePort();
+    EXPECT_EQ(port.extraAudioDescriptors.size(), devicePort->num_extra_audio_descriptors);
+    EXPECT_EQ(AUDIO_STANDARD_EDID, devicePort->extra_audio_descriptors[0].standard);
+    EXPECT_EQ(AUDIO_ENCAPSULATION_TYPE_IEC61937,
+            devicePort->extra_audio_descriptors[0].encapsulation_type);
+    EXPECT_NE(0, devicePort->extra_audio_descriptors[0].descriptor[0]);
+}
+
 INSTANTIATE_TEST_CASE_P(
         DeviceConnectionState,
         AudioPolicyManagerTestDeviceConnection,
diff --git a/services/audiopolicy/tests/resources/test_audio_policy_configuration.xml b/services/audiopolicy/tests/resources/test_audio_policy_configuration.xml
index 5e1822a..d342aea 100644
--- a/services/audiopolicy/tests/resources/test_audio_policy_configuration.xml
+++ b/services/audiopolicy/tests/resources/test_audio_policy_configuration.xml
@@ -71,6 +71,9 @@
                 <devicePort tagName="BT SCO Headset Mic" type="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET"
                             role="source" address="hfp_client_in">
                 </devicePort>
+                <devicePort tagName="BT A2DP Out" type="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP" role="sink"
+                            encodedFormats="AUDIO_FORMAT_LDAC AUDIO_FORMAT_APTX AUDIO_FORMAT_APTX_HD AUDIO_FORMAT_AAC AUDIO_FORMAT_SBC">
+                </devicePort>
             </devicePorts>
             <routes>
                 <route type="mix" sink="Speaker"
@@ -85,6 +88,8 @@
                        sources="mixport_bt_hfp_output,voip_rx"/>
                 <route type="mix" sink="mixport_bt_hfp_input"
                        sources="BT SCO Headset Mic"/>
+                <route type="mix" sink="BT A2DP Out"
+                       sources="primary output"/>
             </routes>
         </module>
 
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index 80410ab..a2e7f7e 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -142,7 +142,10 @@
 // Set to keep track of logged service error events.
 static std::set<String8> sServiceErrorEventSet;
 
-CameraService::CameraService() :
+CameraService::CameraService(
+        std::shared_ptr<CameraServiceProxyWrapper> cameraServiceProxyWrapper) :
+        mCameraServiceProxyWrapper(cameraServiceProxyWrapper == nullptr ?
+                std::make_shared<CameraServiceProxyWrapper>() : cameraServiceProxyWrapper),
         mEventLog(DEFAULT_EVENT_LOG_LENGTH),
         mNumberOfCameras(0),
         mNumberOfCamerasWithoutSystemCamera(0),
@@ -195,7 +198,7 @@
 
     // This needs to be last call in this function, so that it's as close to
     // ServiceManager::addService() as possible.
-    CameraServiceProxyWrapper::pingCameraServiceProxy();
+    mCameraServiceProxyWrapper->pingCameraServiceProxy();
     ALOGI("CameraService pinged cameraservice proxy");
 }
 
@@ -269,7 +272,10 @@
                     cameraId.c_str());
             continue;
         }
-        i->getListener()->onTorchStatusChanged(mapToInterface(status), String16{cameraId});
+        auto ret = i->getListener()->onTorchStatusChanged(mapToInterface(status),
+                String16{cameraId});
+        i->handleBinderStatus(ret, "%s: Failed to trigger onTorchStatusChanged for %d:%d: %d",
+                __FUNCTION__, i->getListenerUid(), i->getListenerPid(), ret.exceptionCode());
     }
 }
 
@@ -538,8 +544,12 @@
                         id.c_str());
                 continue;
             }
-            listener->getListener()->onPhysicalCameraStatusChanged(mapToInterface(newStatus),
-                    id16, physicalId16);
+            auto ret = listener->getListener()->onPhysicalCameraStatusChanged(
+                    mapToInterface(newStatus), id16, physicalId16);
+            listener->handleBinderStatus(ret,
+                    "%s: Failed to trigger onPhysicalCameraStatusChanged for %d:%d: %d",
+                    __FUNCTION__, listener->getListenerUid(), listener->getListenerPid(),
+                    ret.exceptionCode());
         }
     }
 }
@@ -580,8 +590,11 @@
         int32_t newStrengthLevel) {
     Mutex::Autolock lock(mStatusListenerLock);
     for (auto& i : mListenerList) {
-        i->getListener()->onTorchStrengthLevelChanged(String16{cameraId},
+        auto ret = i->getListener()->onTorchStrengthLevelChanged(String16{cameraId},
                 newStrengthLevel);
+        i->handleBinderStatus(ret,
+                "%s: Failed to trigger onTorchStrengthLevelChanged for %d:%d: %d", __FUNCTION__,
+                i->getListenerUid(), i->getListenerPid(), ret.exceptionCode());
     }
 }
 
@@ -973,15 +986,16 @@
     }
     if (effectiveApiLevel == API_1) { // Camera1 API route
         sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
-        *client = new Camera2Client(cameraService, tmp, packageName, featureId,
-                cameraId, api1CameraId, facing, sensorOrientation, clientPid, clientUid,
-                servicePid, overrideForPerfClass);
+        *client = new Camera2Client(cameraService, tmp, cameraService->mCameraServiceProxyWrapper,
+                packageName, featureId, cameraId, api1CameraId, facing, sensorOrientation,
+                clientPid, clientUid, servicePid, overrideForPerfClass);
     } else { // Camera2 API route
         sp<hardware::camera2::ICameraDeviceCallbacks> tmp =
                 static_cast<hardware::camera2::ICameraDeviceCallbacks*>(cameraCb.get());
-        *client = new CameraDeviceClient(cameraService, tmp, packageName,
-                systemNativeClient, featureId, cameraId, facing, sensorOrientation,
-                clientPid, clientUid, servicePid, overrideForPerfClass);
+        *client = new CameraDeviceClient(cameraService, tmp,
+                cameraService->mCameraServiceProxyWrapper, packageName, systemNativeClient,
+                featureId, cameraId, facing, sensorOrientation, clientPid, clientUid, servicePid,
+                overrideForPerfClass);
     }
     return Status::ok();
 }
@@ -1698,7 +1712,7 @@
         return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
 
-    if (CameraServiceProxyWrapper::isCameraDisabled()) {
+    if (mCameraServiceProxyWrapper->isCameraDisabled()) {
         String8 msg =
                 String8::format("Camera disabled by device policy");
         ALOGE("%s: %s", __FUNCTION__, msg.string());
@@ -1707,7 +1721,8 @@
 
     // enforce system camera permissions
     if (oomScoreOffset > 0 &&
-            !hasPermissionsForSystemCamera(callingPid, CameraThreadState::getCallingUid())) {
+            !hasPermissionsForSystemCamera(callingPid, CameraThreadState::getCallingUid()) &&
+            !isTrustedCallingUid(CameraThreadState::getCallingUid())) {
         String8 msg =
                 String8::format("Cannot change the priority of a client %s pid %d for "
                         "camera id %s without SYSTEM_CAMERA permissions",
@@ -1901,12 +1916,15 @@
             }
         }
 
+        // Enable/disable camera service watchdog
+        client->setCameraServiceWatchdog(mCameraServiceWatchdogEnabled);
+
         // Set rotate-and-crop override behavior
         if (mOverrideRotateAndCropMode != ANDROID_SCALER_ROTATE_AND_CROP_AUTO) {
             client->setRotateAndCropOverride(mOverrideRotateAndCropMode);
         } else {
           client->setRotateAndCropOverride(
-              CameraServiceProxyWrapper::getRotateAndCropOverride(
+              mCameraServiceProxyWrapper->getRotateAndCropOverride(
                   clientPackageName, facing, multiuser_get_user_id(clientUid)));
         }
 
@@ -1956,7 +1974,7 @@
     device = client;
 
     int32_t openLatencyMs = ns2ms(systemTime() - openTimeNs);
-    CameraServiceProxyWrapper::logOpen(cameraId, facing, clientPackageName,
+    mCameraServiceProxyWrapper->logOpen(cameraId, facing, clientPackageName,
             effectiveApiLevel, isNonSystemNdk, openLatencyMs);
 
     {
@@ -2382,10 +2400,8 @@
 
     for (const auto& it : mListenerList) {
         auto ret = it->getListener()->onCameraAccessPrioritiesChanged();
-        if (!ret.isOk()) {
-            ALOGE("%s: Failed to trigger permission callback: %d", __FUNCTION__,
-                    ret.exceptionCode());
-        }
+        it->handleBinderStatus(ret, "%s: Failed to trigger permission callback for %d:%d: %d",
+                __FUNCTION__, it->getListenerUid(), it->getListenerPid(), ret.exceptionCode());
     }
 }
 
@@ -2444,7 +2460,7 @@
             const auto basicClient = current->getValue();
             if (basicClient.get() != nullptr) {
               basicClient->setRotateAndCropOverride(
-                  CameraServiceProxyWrapper::getRotateAndCropOverride(
+                  mCameraServiceProxyWrapper->getRotateAndCropOverride(
                       basicClient->getPackageName(),
                       basicClient->getCameraFacing(),
                       multiuser_get_user_id(basicClient->getClientUid())));
@@ -4647,8 +4663,12 @@
                             cameraId.c_str());
                     continue;
                 }
-                listener->getListener()->onStatusChanged(mapToInterface(status),
+                auto ret = listener->getListener()->onStatusChanged(mapToInterface(status),
                         String16(cameraId));
+                listener->handleBinderStatus(ret,
+                        "%s: Failed to trigger onStatusChanged callback for %d:%d: %d",
+                        __FUNCTION__, listener->getListenerUid(), listener->getListenerPid(),
+                        ret.exceptionCode());
             }
         });
 }
@@ -4681,10 +4701,10 @@
         } else {
             ret = it->getListener()->onCameraClosed(cameraId64);
         }
-        if (!ret.isOk()) {
-            ALOGE("%s: Failed to trigger onCameraOpened/onCameraClosed callback: %d", __FUNCTION__,
-                    ret.exceptionCode());
-        }
+
+        it->handleBinderStatus(ret,
+                "%s: Failed to trigger onCameraOpened/onCameraClosed callback for %d:%d: %d",
+                __FUNCTION__, it->getListenerUid(), it->getListenerPid(), ret.exceptionCode());
     }
 }
 
@@ -4785,8 +4805,12 @@
                         String8(physicalCameraId).c_str());
                 continue;
             }
-            listener->getListener()->onPhysicalCameraStatusChanged(status,
+            auto ret = listener->getListener()->onPhysicalCameraStatusChanged(status,
                     logicalCameraId, physicalCameraId);
+            listener->handleBinderStatus(ret,
+                    "%s: Failed to trigger onPhysicalCameraStatusChanged for %d:%d: %d",
+                    __FUNCTION__, listener->getListenerUid(), listener->getListenerPid(),
+                    ret.exceptionCode());
         }
     }
 }
@@ -4842,6 +4866,8 @@
         return handleSetCameraMute(args);
     } else if (args.size() >= 2 && args[0] == String16("watch")) {
         return handleWatchCommand(args, in, out);
+    } else if (args.size() >= 2 && args[0] == String16("set-watchdog")) {
+        return handleSetCameraServiceWatchdog(args);
     } else if (args.size() == 1 && args[0] == String16("help")) {
         printHelp(out);
         return OK;
@@ -4935,6 +4961,28 @@
     return OK;
 }
 
+status_t CameraService::handleSetCameraServiceWatchdog(const Vector<String16>& args) {
+    int enableWatchdog = atoi(String8(args[1]));
+
+    if (enableWatchdog < 0 || enableWatchdog > 1) return BAD_VALUE;
+
+    Mutex::Autolock lock(mServiceLock);
+
+    mCameraServiceWatchdogEnabled = enableWatchdog;
+
+    const auto clients = mActiveClientManager.getAll();
+    for (auto& current : clients) {
+        if (current != nullptr) {
+            const auto basicClient = current->getValue();
+            if (basicClient.get() != nullptr) {
+                basicClient->setCameraServiceWatchdog(enableWatchdog);
+            }
+        }
+    }
+
+    return OK;
+}
+
 status_t CameraService::handleGetRotateAndCrop(int out) {
     Mutex::Autolock lock(mServiceLock);
 
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index d96ea00..0395475 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -48,6 +48,7 @@
 #include "utils/AutoConditionLock.h"
 #include "utils/ClientManager.h"
 #include "utils/IPCTransport.h"
+#include "utils/CameraServiceProxyWrapper.h"
 
 #include <set>
 #include <string>
@@ -100,7 +101,10 @@
     // Implementation of BinderService<T>
     static char const* getServiceName() { return "media.camera"; }
 
-                        CameraService();
+                        // Non-null arguments for cameraServiceProxyWrapper should be provided for
+                        // testing purposes only.
+                        CameraService(std::shared_ptr<CameraServiceProxyWrapper>
+                                cameraServiceProxyWrapper = nullptr);
     virtual             ~CameraService();
 
     /////////////////////////////////////////////////////////////////////
@@ -339,6 +343,9 @@
         // Set/reset camera mute
         virtual status_t setCameraMute(bool enabled) = 0;
 
+        // Set Camera service watchdog
+        virtual status_t setCameraServiceWatchdog(bool enabled) = 0;
+
         // The injection camera session to replace the internal camera
         // session.
         virtual status_t injectCamera(const String8& injectedCamId,
@@ -769,6 +776,8 @@
 
     sp<SensorPrivacyPolicy> mSensorPrivacyPolicy;
 
+    std::shared_ptr<CameraServiceProxyWrapper> mCameraServiceProxyWrapper;
+
     // Delay-load the Camera HAL module
     virtual void onFirstRef();
 
@@ -1055,6 +1064,29 @@
                 return IInterface::asBinder(mListener)->linkToDeath(this);
             }
 
+            template<typename... args_t>
+            void handleBinderStatus(const binder::Status &ret, const char *logOnError,
+                    args_t... args) {
+                if (!ret.isOk() &&
+                        (ret.exceptionCode() != binder::Status::Exception::EX_TRANSACTION_FAILED
+                        || !mLastTransactFailed)) {
+                    ALOGE(logOnError, args...);
+                }
+
+                // If the transaction failed, the process may have died (or other things, see
+                // b/28321379). Mute consecutive errors from this listener to avoid log spam.
+                if (ret.exceptionCode() == binder::Status::Exception::EX_TRANSACTION_FAILED) {
+                    if (!mLastTransactFailed) {
+                        ALOGE("%s: Muting similar errors from listener %d:%d", __FUNCTION__,
+                                mListenerUid, mListenerPid);
+                    }
+                    mLastTransactFailed = true;
+                } else {
+                    // Reset mLastTransactFailed when binder becomes healthy again.
+                    mLastTransactFailed = false;
+                }
+            }
+
             virtual void binderDied(const wp<IBinder> &/*who*/) {
                 auto parent = mParent.promote();
                 if (parent.get() != nullptr) {
@@ -1075,6 +1107,9 @@
             int mListenerPid = -1;
             bool mIsVendorListener = false;
             bool mOpenCloseCallbackAllowed = false;
+
+            // Flag for preventing log spam when binder becomes unhealthy
+            bool mLastTransactFailed = false;
     };
 
     // Guarded by mStatusListenerMutex
@@ -1198,6 +1233,9 @@
     // Handle 'watch' command as passed through 'cmd'
     status_t handleWatchCommand(const Vector<String16> &args, int inFd, int outFd);
 
+    // Set the camera service watchdog
+    status_t handleSetCameraServiceWatchdog(const Vector<String16>& args);
+
     // Enable tag monitoring of the given tags in provided clients
     status_t startWatchingTags(const Vector<String16> &args, int outFd);
 
@@ -1284,6 +1322,9 @@
     // Current camera mute mode
     bool mOverrideCameraMuteMode = false;
 
+    // Camera Service watchdog flag
+    bool mCameraServiceWatchdogEnabled = true;
+
     /**
      * A listener class that implements the IBinder::DeathRecipient interface
      * for use to call back the error state injected by the external camera, and
diff --git a/services/camera/libcameraservice/CameraServiceWatchdog.cpp b/services/camera/libcameraservice/CameraServiceWatchdog.cpp
index a169667..e101dd3 100644
--- a/services/camera/libcameraservice/CameraServiceWatchdog.cpp
+++ b/services/camera/libcameraservice/CameraServiceWatchdog.cpp
@@ -66,6 +66,17 @@
     }
 }
 
+void CameraServiceWatchdog::setEnabled(bool enable)
+{
+    AutoMutex _l(mEnabledLock);
+
+    if (enable) {
+        mEnabled = true;
+    } else {
+        mEnabled = false;
+    }
+}
+
 void CameraServiceWatchdog::stop(uint32_t tid)
 {
     AutoMutex _l(mWatchdogLock);
diff --git a/services/camera/libcameraservice/CameraServiceWatchdog.h b/services/camera/libcameraservice/CameraServiceWatchdog.h
index 29ddab1..e35d69e 100644
--- a/services/camera/libcameraservice/CameraServiceWatchdog.h
+++ b/services/camera/libcameraservice/CameraServiceWatchdog.h
@@ -21,10 +21,12 @@
  * expected duration has exceeded.
  * Notes on multi-threaded behaviors:
  *    - The threadloop is blocked/paused when there are no calls being
- *   monitored.
+ *   monitored (when the TID cycle to counter map is empty).
  *   - The start and stop functions handle simultaneous call monitoring
  *   and single call monitoring differently. See function documentation for
  *   more details.
+ * To disable/enable:
+ *   - adb shell cmd media.camera set-cameraservice-watchdog [0/1]
  */
 #pragma once
 #include <chrono>
@@ -49,15 +51,19 @@
 
 public:
     explicit CameraServiceWatchdog() : mPause(true), mMaxCycles(kMaxCycles),
-            mCycleLengthMs(kCycleLengthMs) {};
+            mCycleLengthMs(kCycleLengthMs), mEnabled(true) {};
 
-    explicit CameraServiceWatchdog (size_t maxCycles, uint32_t cycleLengthMs) :
-            mPause(true), mMaxCycles(maxCycles), mCycleLengthMs(cycleLengthMs) {};
+    explicit CameraServiceWatchdog (size_t maxCycles, uint32_t cycleLengthMs, bool enabled) :
+            mPause(true), mMaxCycles(maxCycles), mCycleLengthMs(cycleLengthMs), mEnabled(enabled)
+                    {};
 
     virtual ~CameraServiceWatchdog() {};
 
     virtual void requestExit();
 
+    /** Enables/disables the watchdog */
+    void setEnabled(bool enable);
+
     /** Used to wrap monitored calls in start and stop functions using custom timer values */
     template<typename T>
     auto watchThread(T func, uint32_t tid, uint32_t cycles, uint32_t cycleLength) {
@@ -66,9 +72,20 @@
         if (cycles != mMaxCycles || cycleLength != mCycleLengthMs) {
             // Create another instance of the watchdog to prevent disruption
             // of timer for current monitored calls
+
+            // Lock for mEnabled
+            mEnabledLock.lock();
             sp<CameraServiceWatchdog> tempWatchdog =
-                    new CameraServiceWatchdog(cycles, cycleLength);
-            tempWatchdog->run("CameraServiceWatchdog");
+                    new CameraServiceWatchdog(cycles, cycleLength, mEnabled);
+            mEnabledLock.unlock();
+
+            status_t status = tempWatchdog->run("CameraServiceWatchdog");
+            if (status != OK) {
+                ALOGE("Unable to watch thread: %s (%d)", strerror(-status), status);
+                res = watchThread(func, tid);
+                return res;
+            }
+
             res = tempWatchdog->watchThread(func, tid);
             tempWatchdog->requestExit();
             tempWatchdog.clear();
@@ -84,10 +101,16 @@
     /** Used to wrap monitored calls in start and stop functions using class timer values */
     template<typename T>
     auto watchThread(T func, uint32_t tid) {
+        decltype(func()) res;
+        AutoMutex _l(mEnabledLock);
 
-        start(tid);
-        auto res = func();
-        stop(tid);
+        if (mEnabled) {
+            start(tid);
+            res = func();
+            stop(tid);
+        } else {
+            res = func();
+        }
 
         return res;
     }
@@ -108,11 +131,13 @@
 
     virtual bool    threadLoop();
 
-    Mutex           mWatchdogLock;        // Lock for condition variable
-    Condition       mWatchdogCondition;   // Condition variable for stop/start
-    bool            mPause;               // True if thread is currently paused
-    uint32_t        mMaxCycles;           // Max cycles
-    uint32_t        mCycleLengthMs;       // Length of time elapsed per cycle
+    Mutex           mWatchdogLock;      // Lock for condition variable
+    Mutex           mEnabledLock;       // Lock for enabled status
+    Condition       mWatchdogCondition; // Condition variable for stop/start
+    bool            mPause;             // True if tid map is empty
+    uint32_t        mMaxCycles;         // Max cycles
+    uint32_t        mCycleLengthMs;     // Length of time elapsed per cycle
+    bool            mEnabled;           // True if watchdog is enabled
 
     std::unordered_map<uint32_t, uint32_t> tidToCycleCounterMap; // Thread Id to cycle counter map
 };
diff --git a/services/camera/libcameraservice/api1/Camera2Client.cpp b/services/camera/libcameraservice/api1/Camera2Client.cpp
index 68dc7f8..88f27de 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.cpp
+++ b/services/camera/libcameraservice/api1/Camera2Client.cpp
@@ -52,6 +52,7 @@
 
 Camera2Client::Camera2Client(const sp<CameraService>& cameraService,
         const sp<hardware::ICameraClient>& cameraClient,
+        std::shared_ptr<CameraServiceProxyWrapper> cameraServiceProxyWrapper,
         const String16& clientPackageName,
         const std::optional<String16>& clientFeatureId,
         const String8& cameraDeviceId,
@@ -62,7 +63,7 @@
         uid_t clientUid,
         int servicePid,
         bool overrideForPerfClass):
-        Camera2ClientBase(cameraService, cameraClient, clientPackageName,
+        Camera2ClientBase(cameraService, cameraClient, cameraServiceProxyWrapper, clientPackageName,
                 false/*systemNativeClient - since no ndk for api1*/, clientFeatureId,
                 cameraDeviceId, api1CameraId, cameraFacing, sensorOrientation, clientPid,
                 clientUid, servicePid, overrideForPerfClass, /*legacyClient*/ true),
@@ -139,28 +140,53 @@
     mFrameProcessor = new FrameProcessor(mDevice, this);
     threadName = String8::format("C2-%d-FrameProc",
             mCameraId);
-    mFrameProcessor->run(threadName.string());
+    res = mFrameProcessor->run(threadName.string());
+    if (res != OK) {
+        ALOGE("%s: Unable to start frame processor thread: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
 
     mCaptureSequencer = new CaptureSequencer(this);
     threadName = String8::format("C2-%d-CaptureSeq",
             mCameraId);
-    mCaptureSequencer->run(threadName.string());
+    res = mCaptureSequencer->run(threadName.string());
+    if (res != OK) {
+        ALOGE("%s: Unable to start capture sequencer thread: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
 
     mJpegProcessor = new JpegProcessor(this, mCaptureSequencer);
     threadName = String8::format("C2-%d-JpegProc",
             mCameraId);
-    mJpegProcessor->run(threadName.string());
+    res = mJpegProcessor->run(threadName.string());
+    if (res != OK) {
+        ALOGE("%s: Unable to start jpeg processor thread: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
 
     mZslProcessor = new ZslProcessor(this, mCaptureSequencer);
 
     threadName = String8::format("C2-%d-ZslProc",
             mCameraId);
-    mZslProcessor->run(threadName.string());
+    res = mZslProcessor->run(threadName.string());
+    if (res != OK) {
+        ALOGE("%s: Unable to start zsl processor thread: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
 
     mCallbackProcessor = new CallbackProcessor(this);
     threadName = String8::format("C2-%d-CallbkProc",
             mCameraId);
-    mCallbackProcessor->run(threadName.string());
+    res = mCallbackProcessor->run(threadName.string());
+    if (res != OK) {
+        ALOGE("%s: Unable to start callback processor thread: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
 
     if (gLogLevel >= 1) {
         SharedParameters::Lock l(mParameters);
@@ -478,7 +504,7 @@
     CameraService::Client::disconnect();
 
     int32_t closeLatencyMs = ns2ms(systemTime() - startTime);
-    CameraServiceProxyWrapper::logClose(mCameraIdStr, closeLatencyMs);
+    mCameraServiceProxyWrapper->logClose(mCameraIdStr, closeLatencyMs);
 
     return res;
 }
@@ -2316,6 +2342,10 @@
     return INVALID_OPERATION;
 }
 
+status_t Camera2Client::setCameraServiceWatchdog(bool enabled) {
+    return mDevice->setCameraServiceWatchdog(enabled);
+}
+
 status_t Camera2Client::setRotateAndCropOverride(uint8_t rotateAndCrop) {
     if (rotateAndCrop > ANDROID_SCALER_ROTATE_AND_CROP_AUTO) return BAD_VALUE;
 
diff --git a/services/camera/libcameraservice/api1/Camera2Client.h b/services/camera/libcameraservice/api1/Camera2Client.h
index c8dfc46..fe91cba 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.h
+++ b/services/camera/libcameraservice/api1/Camera2Client.h
@@ -90,12 +90,15 @@
     virtual bool            supportsCameraMute();
     virtual status_t        setCameraMute(bool enabled);
 
+    virtual status_t        setCameraServiceWatchdog(bool enabled);
+
     /**
      * Interface used by CameraService
      */
 
     Camera2Client(const sp<CameraService>& cameraService,
             const sp<hardware::ICameraClient>& cameraClient,
+            std::shared_ptr<CameraServiceProxyWrapper> cameraServiceProxyWrapper,
             const String16& clientPackageName,
             const std::optional<String16>& clientFeatureId,
             const String8& cameraDeviceId,
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index 5e91501..ba26ac4 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -31,7 +31,6 @@
 #include "device3/Camera3Device.h"
 #include "device3/Camera3OutputStream.h"
 #include "api2/CameraDeviceClient.h"
-#include "utils/CameraServiceProxyWrapper.h"
 
 #include <camera_metadata_hidden.h>
 
@@ -87,6 +86,7 @@
 
 CameraDeviceClient::CameraDeviceClient(const sp<CameraService>& cameraService,
         const sp<hardware::camera2::ICameraDeviceCallbacks>& remoteCallback,
+        std::shared_ptr<CameraServiceProxyWrapper> cameraServiceProxyWrapper,
         const String16& clientPackageName,
         bool systemNativeClient,
         const std::optional<String16>& clientFeatureId,
@@ -97,9 +97,9 @@
         uid_t clientUid,
         int servicePid,
         bool overrideForPerfClass) :
-    Camera2ClientBase(cameraService, remoteCallback, clientPackageName, systemNativeClient,
-                clientFeatureId, cameraId, /*API1 camera ID*/ -1, cameraFacing, sensorOrientation,
-                clientPid, clientUid, servicePid, overrideForPerfClass),
+    Camera2ClientBase(cameraService, remoteCallback, cameraServiceProxyWrapper, clientPackageName,
+            systemNativeClient, clientFeatureId, cameraId, /*API1 camera ID*/ -1, cameraFacing,
+            sensorOrientation, clientPid, clientUid, servicePid, overrideForPerfClass),
     mInputStream(),
     mStreamingRequestId(REQUEST_ID_NONE),
     mRequestIdCounter(0),
@@ -127,7 +127,12 @@
     String8 threadName;
     mFrameProcessor = new FrameProcessorBase(mDevice);
     threadName = String8::format("CDU-%s-FrameProc", mCameraIdStr.string());
-    mFrameProcessor->run(threadName.string());
+    res = mFrameProcessor->run(threadName.string());
+    if (res != OK) {
+        ALOGE("%s: Unable to start frame processor thread: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
 
     mFrameProcessor->registerListener(camera2::FrameProcessorBase::FRAME_PROCESSOR_LISTENER_MIN_ID,
                                       camera2::FrameProcessorBase::FRAME_PROCESSOR_LISTENER_MAX_ID,
@@ -692,7 +697,7 @@
 
         nsecs_t configureEnd = systemTime();
         int32_t configureDurationMs = ns2ms(configureEnd) - startTimeMs;
-        CameraServiceProxyWrapper::logStreamConfigured(mCameraIdStr, operatingMode,
+        mCameraServiceProxyWrapper->logStreamConfigured(mCameraIdStr, operatingMode,
                 false /*internalReconfig*/, configureDurationMs);
     }
 
@@ -1730,6 +1735,10 @@
     return binder::Status::ok();
 }
 
+status_t CameraDeviceClient::setCameraServiceWatchdog(bool enabled) {
+    return mDevice->setCameraServiceWatchdog(enabled);
+}
+
 status_t CameraDeviceClient::setRotateAndCropOverride(uint8_t rotateAndCrop) {
     if (rotateAndCrop > ANDROID_SCALER_ROTATE_AND_CROP_AUTO) return BAD_VALUE;
 
@@ -2057,7 +2066,7 @@
     Camera2ClientBase::detachDevice();
 
     int32_t closeLatencyMs = ns2ms(systemTime() - startTime);
-    CameraServiceProxyWrapper::logClose(mCameraIdStr, closeLatencyMs);
+    mCameraServiceProxyWrapper->logClose(mCameraIdStr, closeLatencyMs);
 }
 
 /** Device-related methods */
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.h b/services/camera/libcameraservice/api2/CameraDeviceClient.h
index c5aad6b..06844c6 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.h
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.h
@@ -29,6 +29,7 @@
 #include "common/FrameProcessorBase.h"
 #include "common/Camera2ClientBase.h"
 #include "CompositeStream.h"
+#include "utils/CameraServiceProxyWrapper.h"
 #include "utils/SessionConfigurationUtils.h"
 
 using android::camera3::OutputStreamInfo;
@@ -178,6 +179,7 @@
 
     CameraDeviceClient(const sp<CameraService>& cameraService,
             const sp<hardware::camera2::ICameraDeviceCallbacks>& remoteCallback,
+            std::shared_ptr<CameraServiceProxyWrapper> cameraServiceProxyWrapper,
             const String16& clientPackageName,
             bool clientPackageOverride,
             const std::optional<String16>& clientFeatureId,
@@ -206,6 +208,8 @@
     virtual status_t      stopWatchingTags(int out);
     virtual status_t      dumpWatchedEventsToVector(std::vector<std::string> &out);
 
+    virtual status_t      setCameraServiceWatchdog(bool enabled);
+
     /**
      * Device listener interface
      */
diff --git a/services/camera/libcameraservice/api2/CameraOfflineSessionClient.cpp b/services/camera/libcameraservice/api2/CameraOfflineSessionClient.cpp
index 9303fd2..4d4d481 100644
--- a/services/camera/libcameraservice/api2/CameraOfflineSessionClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraOfflineSessionClient.cpp
@@ -44,7 +44,12 @@
     String8 threadName;
     mFrameProcessor = new camera2::FrameProcessorBase(mOfflineSession);
     threadName = String8::format("Offline-%s-FrameProc", mCameraIdStr.string());
-    mFrameProcessor->run(threadName.string());
+    res = mFrameProcessor->run(threadName.string());
+    if (res != OK) {
+        ALOGE("%s: Unable to start frame processor thread: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
 
     mFrameProcessor->registerListener(camera2::FrameProcessorBase::FRAME_PROCESSOR_LISTENER_MIN_ID,
                                       camera2::FrameProcessorBase::FRAME_PROCESSOR_LISTENER_MAX_ID,
@@ -66,6 +71,10 @@
     return OK;
 }
 
+status_t CameraOfflineSessionClient::setCameraServiceWatchdog(bool) {
+    return OK;
+}
+
 status_t CameraOfflineSessionClient::setRotateAndCropOverride(uint8_t /*rotateAndCrop*/) {
     // Since we're not submitting more capture requests, changes to rotateAndCrop override
     // make no difference.
diff --git a/services/camera/libcameraservice/api2/CameraOfflineSessionClient.h b/services/camera/libcameraservice/api2/CameraOfflineSessionClient.h
index f2c42d8..9ea1093 100644
--- a/services/camera/libcameraservice/api2/CameraOfflineSessionClient.h
+++ b/services/camera/libcameraservice/api2/CameraOfflineSessionClient.h
@@ -84,6 +84,8 @@
     bool supportsCameraMute() override;
     status_t setCameraMute(bool enabled) override;
 
+    status_t setCameraServiceWatchdog(bool enabled) override;
+
     // permissions management
     status_t startCameraOps() override;
     status_t finishCameraOps() override;
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.cpp b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
index a3d24ff..f926b88 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.cpp
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
@@ -37,7 +37,6 @@
 #include "device3/aidl/AidlCamera3Device.h"
 #include "device3/hidl/HidlCamera3Device.h"
 #include "utils/CameraThreadState.h"
-#include "utils/CameraServiceProxyWrapper.h"
 
 namespace android {
 
@@ -51,6 +50,7 @@
 Camera2ClientBase<TClientBase>::Camera2ClientBase(
         const sp<CameraService>& cameraService,
         const sp<TCamCallbacks>& remoteCallback,
+        std::shared_ptr<CameraServiceProxyWrapper> cameraServiceProxyWrapper,
         const String16& clientPackageName,
         bool systemNativeClient,
         const std::optional<String16>& clientFeatureId,
@@ -67,6 +67,7 @@
                 clientFeatureId, cameraId, api1CameraId, cameraFacing, sensorOrientation, clientPid,
                 clientUid, servicePid),
         mSharedCameraCallbacks(remoteCallback),
+        mCameraServiceProxyWrapper(cameraServiceProxyWrapper),
         mDeviceActive(false), mApi1CameraId(api1CameraId)
 {
     ALOGI("Camera %s: Opened. Client: %s (PID %d, UID %d)", cameraId.string(),
@@ -104,11 +105,6 @@
           TClientBase::mCameraIdStr.string());
     status_t res;
 
-    // Verify ops permissions
-    res = TClientBase::startCameraOps();
-    if (res != OK) {
-        return res;
-    }
     IPCTransport providerTransport = IPCTransport::INVALID;
     res = providerPtr->getCameraIdIPCTransport(TClientBase::mCameraIdStr.string(),
             &providerTransport);
@@ -118,13 +114,13 @@
     switch (providerTransport) {
         case IPCTransport::HIDL:
             mDevice =
-                    new HidlCamera3Device(TClientBase::mCameraIdStr, mOverrideForPerfClass,
-                            mLegacyClient);
+                    new HidlCamera3Device(mCameraServiceProxyWrapper,
+                            TClientBase::mCameraIdStr, mOverrideForPerfClass, mLegacyClient);
             break;
         case IPCTransport::AIDL:
             mDevice =
-                    new AidlCamera3Device(TClientBase::mCameraIdStr, mOverrideForPerfClass,
-                            mLegacyClient);
+                    new AidlCamera3Device(mCameraServiceProxyWrapper,
+                            TClientBase::mCameraIdStr, mOverrideForPerfClass, mLegacyClient);
              break;
         default:
             ALOGE("%s Invalid transport for camera id %s", __FUNCTION__,
@@ -144,12 +140,30 @@
         return res;
     }
 
+    // Verify ops permissions
+    res = TClientBase::startCameraOps();
+    if (res != OK) {
+        TClientBase::finishCameraOps();
+        mDevice.clear();
+        return res;
+    }
+
     wp<NotificationListener> weakThis(this);
     res = mDevice->setNotifyCallback(weakThis);
+    if (res != OK) {
+        ALOGE("%s: Camera %s: Unable to set notify callback: %s (%d)",
+                __FUNCTION__, TClientBase::mCameraIdStr.string(), strerror(-res), res);
+        return res;
+    }
 
     /** Start watchdog thread */
     mCameraServiceWatchdog = new CameraServiceWatchdog();
-    mCameraServiceWatchdog->run("Camera2ClientBaseWatchdog");
+    res = mCameraServiceWatchdog->run("Camera2ClientBaseWatchdog");
+    if (res != OK) {
+        ALOGE("%s: Unable to start camera service watchdog thread: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
 
     return OK;
 }
@@ -167,8 +181,8 @@
         mCameraServiceWatchdog.clear();
     }
 
-    ALOGI("Closed Camera %s. Client was: %s (PID %d, UID %u)",
-            TClientBase::mCameraIdStr.string(),
+    ALOGI("%s: Client object's dtor for Camera Id %s completed. Client was: %s (PID %d, UID %u)",
+            __FUNCTION__, TClientBase::mCameraIdStr.string(),
             String8(TClientBase::mClientPackageName).string(),
             mInitialClientPid, TClientBase::mClientUid);
 }
@@ -346,7 +360,7 @@
                     TClientBase::mCameraIdStr.string(), res);
             return res;
         }
-        CameraServiceProxyWrapper::logActive(TClientBase::mCameraIdStr, maxPreviewFps);
+        mCameraServiceProxyWrapper->logActive(TClientBase::mCameraIdStr, maxPreviewFps);
     }
     mDeviceActive = true;
 
@@ -365,7 +379,7 @@
             ALOGE("%s: Camera %s: Error finishing streaming ops: %d", __FUNCTION__,
                     TClientBase::mCameraIdStr.string(), res);
         }
-        CameraServiceProxyWrapper::logIdle(TClientBase::mCameraIdStr,
+        mCameraServiceProxyWrapper->logIdle(TClientBase::mCameraIdStr,
                 requestCount, resultErrorCount, deviceError, userTag, videoStabilizationMode,
                 streamStats);
     }
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.h b/services/camera/libcameraservice/common/Camera2ClientBase.h
index 3af781b..6e37589 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.h
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.h
@@ -19,6 +19,7 @@
 
 #include "common/CameraDeviceBase.h"
 #include "camera/CaptureResult.h"
+#include "utils/CameraServiceProxyWrapper.h"
 #include "CameraServiceWatchdog.h"
 
 namespace android {
@@ -48,6 +49,7 @@
     // TODO: too many params, move into a ClientArgs<T>
     Camera2ClientBase(const sp<CameraService>& cameraService,
                       const sp<TCamCallbacks>& remoteCallback,
+                      std::shared_ptr<CameraServiceProxyWrapper> cameraServiceProxyWrapper,
                       const String16& clientPackageName,
                       bool systemNativeClient,
                       const std::optional<String16>& clientFeatureId,
@@ -136,6 +138,7 @@
     pid_t mInitialClientPid;
     bool mOverrideForPerfClass = false;
     bool mLegacyClient = false;
+    std::shared_ptr<CameraServiceProxyWrapper> mCameraServiceProxyWrapper;
 
     virtual sp<IBinder> asBinderWrapper() {
         return IInterface::asBinder(this);
diff --git a/services/camera/libcameraservice/common/CameraDeviceBase.h b/services/camera/libcameraservice/common/CameraDeviceBase.h
index 7e2f93c..69514f3 100644
--- a/services/camera/libcameraservice/common/CameraDeviceBase.h
+++ b/services/camera/libcameraservice/common/CameraDeviceBase.h
@@ -449,6 +449,11 @@
     virtual status_t setCameraMute(bool enabled) = 0;
 
     /**
+     * Enable/disable camera service watchdog
+     */
+    virtual status_t setCameraServiceWatchdog(bool enabled) = 0;
+
+    /**
      * Get the status tracker of the camera device
      */
     virtual wp<camera3::StatusTracker> getStatusTracker() = 0;
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index 7c2f34f..acee2ab 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -63,7 +63,6 @@
 #include "utils/CameraThreadState.h"
 #include "utils/SessionConfigurationUtils.h"
 #include "utils/TraceHFR.h"
-#include "utils/CameraServiceProxyWrapper.h"
 
 #include <algorithm>
 #include <tuple>
@@ -73,7 +72,9 @@
 
 namespace android {
 
-Camera3Device::Camera3Device(const String8 &id, bool overrideForPerfClass, bool legacyClient):
+Camera3Device::Camera3Device(std::shared_ptr<CameraServiceProxyWrapper>& cameraServiceProxyWrapper,
+        const String8 &id, bool overrideForPerfClass, bool legacyClient):
+        mCameraServiceProxyWrapper(cameraServiceProxyWrapper),
         mId(id),
         mLegacyClient(legacyClient),
         mOperatingMode(NO_MODE),
@@ -113,10 +114,6 @@
 
 status_t Camera3Device::initializeCommonLocked() {
 
-    /** Start watchdog thread */
-    mCameraServiceWatchdog = new CameraServiceWatchdog();
-    mCameraServiceWatchdog->run("CameraServiceWatchdog");
-
     /** Start up status tracker thread */
     mStatusTracker = new StatusTracker(this);
     status_t res = mStatusTracker->run(String8::format("C3Dev-%s-Status", mId.string()).string());
@@ -230,6 +227,15 @@
     // Hidl/AidlCamera3DeviceInjectionMethods
     mInjectionMethods = createCamera3DeviceInjectionMethods(this);
 
+    /** Start watchdog thread */
+    mCameraServiceWatchdog = new CameraServiceWatchdog();
+    res = mCameraServiceWatchdog->run("CameraServiceWatchdog");
+    if (res != OK) {
+        SET_ERR_L("Unable to start camera service watchdog thread: %s (%d)",
+                strerror(-res), res);
+        return res;
+    }
+
     return OK;
 }
 
@@ -2257,7 +2263,7 @@
         ALOGE("%s: Failed to pause streaming: %d", __FUNCTION__, rc);
     }
 
-    CameraServiceProxyWrapper::logStreamConfigured(mId, mOperatingMode, true /*internalReconfig*/,
+    mCameraServiceProxyWrapper->logStreamConfigured(mId, mOperatingMode, true /*internalReconfig*/,
         ns2ms(systemTime() - startTime));
 
     if (markClientActive) {
@@ -4094,6 +4100,17 @@
     }
 }
 
+status_t Camera3Device::setCameraServiceWatchdog(bool enabled) {
+    Mutex::Autolock il(mInterfaceLock);
+    Mutex::Autolock l(mLock);
+
+    if (mCameraServiceWatchdog != NULL) {
+        mCameraServiceWatchdog->setEnabled(enabled);
+    }
+
+    return OK;
+}
+
 void Camera3Device::RequestThread::cleanUpFailedRequests(bool sendRequestError) {
     if (mNextRequests.empty()) {
         return;
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index 3c60ba2..d757eb9 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -49,6 +49,7 @@
 #include "utils/TagMonitor.h"
 #include "utils/IPCTransport.h"
 #include "utils/LatencyHistogram.h"
+#include "utils/CameraServiceProxyWrapper.h"
 #include <camera_metadata_hidden.h>
 
 using android::camera3::camera_capture_request_t;
@@ -82,7 +83,8 @@
   friend class AidlCamera3Device;
   public:
 
-    explicit Camera3Device(const String8& id, bool overrideForPerfClass, bool legacyClient = false);
+    explicit Camera3Device(std::shared_ptr<CameraServiceProxyWrapper>& cameraServiceProxyWrapper,
+            const String8& id, bool overrideForPerfClass, bool legacyClient = false);
 
     virtual ~Camera3Device();
     // Delete and optionally close native handles and clear the input vector afterward
@@ -281,6 +283,11 @@
      */
     status_t setCameraMute(bool enabled);
 
+    /**
+     * Enables/disables camera service watchdog
+     */
+    status_t setCameraServiceWatchdog(bool enabled);
+
     // Get the status trackeer for the camera device
     wp<camera3::StatusTracker> getStatusTracker() { return mStatusTracker; }
 
@@ -320,6 +327,8 @@
     // Constant to use for stream ID when one doesn't exist
     static const int           NO_STREAM = -1;
 
+    std::shared_ptr<CameraServiceProxyWrapper> mCameraServiceProxyWrapper;
+
     // A lock to enforce serialization on the input/configure side
     // of the public interface.
     // Not locked by methods guarded by mOutputLock, since they may act
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
index 69163a5..e12d8be 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
@@ -702,7 +702,8 @@
             mTotalBufferCount ++;
             res = mPreviewFrameSpacer->run(String8::format("PreviewSpacer-%d", mId).string());
             if (res != OK) {
-                ALOGE("%s: Unable to start preview spacer", __FUNCTION__);
+                ALOGE("%s: Unable to start preview spacer: %s (%d)", __FUNCTION__,
+                        strerror(-res), res);
                 return res;
             }
         }
diff --git a/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.cpp b/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.cpp
index f05520f..973bc04 100644
--- a/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.cpp
+++ b/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.cpp
@@ -161,9 +161,11 @@
     return (uint64_t)usage;
 }
 
-AidlCamera3Device::AidlCamera3Device(const String8& id, bool overrideForPerfClass,
-            bool legacyClient) : Camera3Device(id, overrideForPerfClass, legacyClient) {
-        mCallbacks = ndk::SharedRefBase::make<AidlCameraDeviceCallbacks>(this);
+AidlCamera3Device::AidlCamera3Device(
+        std::shared_ptr<CameraServiceProxyWrapper>& cameraServiceProxyWrapper,
+        const String8& id, bool overrideForPerfClass, bool legacyClient) :
+        Camera3Device(cameraServiceProxyWrapper, id, overrideForPerfClass, legacyClient) {
+    mCallbacks = ndk::SharedRefBase::make<AidlCameraDeviceCallbacks>(this);
 }
 
 status_t AidlCamera3Device::initialize(sp<CameraProviderManager> manager,
diff --git a/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.h b/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.h
index d20a7eb..ecf42b4 100644
--- a/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.h
+++ b/services/camera/libcameraservice/device3/aidl/AidlCamera3Device.h
@@ -39,8 +39,9 @@
     using AidlRequestMetadataQueue = AidlMessageQueue<int8_t, SynchronizedReadWrite>;
     class AidlCameraDeviceCallbacks;
     friend class AidlCameraDeviceCallbacks;
-    explicit AidlCamera3Device(const String8& id, bool overrideForPerfClass,
-            bool legacyClient = false);
+    explicit AidlCamera3Device(
+            std::shared_ptr<CameraServiceProxyWrapper>& cameraServiceProxyWrapper,
+            const String8& id, bool overrideForPerfClass, bool legacyClient = false);
 
     virtual ~AidlCamera3Device() { }
 
diff --git a/services/camera/libcameraservice/device3/hidl/HidlCamera3Device.h b/services/camera/libcameraservice/device3/hidl/HidlCamera3Device.h
index 2e98fe0..faac83f 100644
--- a/services/camera/libcameraservice/device3/hidl/HidlCamera3Device.h
+++ b/services/camera/libcameraservice/device3/hidl/HidlCamera3Device.h
@@ -31,8 +31,9 @@
             public Camera3Device {
   public:
 
-   explicit HidlCamera3Device(const String8& id, bool overrideForPerfClass,
-          bool legacyClient = false) : Camera3Device(id, overrideForPerfClass, legacyClient) { }
+   explicit HidlCamera3Device(std::shared_ptr<CameraServiceProxyWrapper>& cameraServiceProxyWrapper,
+        const String8& id, bool overrideForPerfClass, bool legacyClient = false) :
+        Camera3Device(cameraServiceProxyWrapper, id, overrideForPerfClass, legacyClient) { }
 
     virtual ~HidlCamera3Device() {}
 
diff --git a/services/camera/libcameraservice/hidl/VndkVersionMetadataTags.h b/services/camera/libcameraservice/hidl/VndkVersionMetadataTags.h
index d3377f4..74b3700 100644
--- a/services/camera/libcameraservice/hidl/VndkVersionMetadataTags.h
+++ b/services/camera/libcameraservice/hidl/VndkVersionMetadataTags.h
@@ -31,47 +31,47 @@
 std::map<int, std::vector<camera_metadata_tag>> static_api_level_to_keys{
       {30, {
           ANDROID_CONTROL_AVAILABLE_EXTENDED_SCENE_MODE_MAX_SIZES,
+          ANDROID_CONTROL_AVAILABLE_EXTENDED_SCENE_MODE_ZOOM_RATIO_RANGES,
           ANDROID_CONTROL_ZOOM_RATIO_RANGE,
           ANDROID_SCALER_AVAILABLE_ROTATE_AND_CROP_MODES,
-          ANDROID_CONTROL_AVAILABLE_EXTENDED_SCENE_MODE_ZOOM_RATIO_RANGES,
         } },
       {31, {
-          ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE_MAXIMUM_RESOLUTION,
-          ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE_MAXIMUM_RESOLUTION,
-          ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_SCALER_AVAILABLE_INPUT_OUTPUT_FORMATS_MAP_MAXIMUM_RESOLUTION,
-          ANDROID_SCALER_AVAILABLE_STALL_DURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_HEIC_AVAILABLE_HEIC_STALL_DURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STALL_DURATIONS_MAXIMUM_RESOLUTION,
           ANDROID_CONTROL_AVAILABLE_HIGH_SPEED_VIDEO_CONFIGURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_LENS_INTRINSIC_CALIBRATION_MAXIMUM_RESOLUTION,
-          ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STREAM_CONFIGURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_HEIC_AVAILABLE_HEIC_STREAM_CONFIGURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_SCALER_PHYSICAL_CAMERA_MULTI_RESOLUTION_STREAM_CONFIGURATIONS,
-          ANDROID_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_SCALER_MULTI_RESOLUTION_STREAM_SUPPORTED,
-          ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_MIN_FRAME_DURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE_MAXIMUM_RESOLUTION,
           ANDROID_DEPTH_AVAILABLE_DEPTH_MIN_FRAME_DURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_LENS_DISTORTION_MAXIMUM_RESOLUTION,
-          ANDROID_SCALER_DEFAULT_SECURE_IMAGE_SIZE,
+          ANDROID_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS_MAXIMUM_RESOLUTION,
+          ANDROID_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_MAXIMUM_RESOLUTION,
+          ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_MIN_FRAME_DURATIONS_MAXIMUM_RESOLUTION,
+          ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STALL_DURATIONS_MAXIMUM_RESOLUTION,
+          ANDROID_DEPTH_AVAILABLE_DYNAMIC_DEPTH_STREAM_CONFIGURATIONS_MAXIMUM_RESOLUTION,
           ANDROID_HEIC_AVAILABLE_HEIC_MIN_FRAME_DURATIONS_MAXIMUM_RESOLUTION,
-          ANDROID_SENSOR_OPAQUE_RAW_SIZE_MAXIMUM_RESOLUTION,
+          ANDROID_HEIC_AVAILABLE_HEIC_STALL_DURATIONS_MAXIMUM_RESOLUTION,
+          ANDROID_HEIC_AVAILABLE_HEIC_STREAM_CONFIGURATIONS_MAXIMUM_RESOLUTION,
+          ANDROID_LENS_DISTORTION_MAXIMUM_RESOLUTION,
+          ANDROID_LENS_INTRINSIC_CALIBRATION_MAXIMUM_RESOLUTION,
+          ANDROID_SCALER_AVAILABLE_INPUT_OUTPUT_FORMATS_MAP_MAXIMUM_RESOLUTION,
+          ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS_MAXIMUM_RESOLUTION,
+          ANDROID_SCALER_AVAILABLE_STALL_DURATIONS_MAXIMUM_RESOLUTION,
+          ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_MAXIMUM_RESOLUTION,
+          ANDROID_SCALER_DEFAULT_SECURE_IMAGE_SIZE,
+          ANDROID_SCALER_MULTI_RESOLUTION_STREAM_SUPPORTED,
+          ANDROID_SCALER_PHYSICAL_CAMERA_MULTI_RESOLUTION_STREAM_CONFIGURATIONS,
+          ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE_MAXIMUM_RESOLUTION,
           ANDROID_SENSOR_INFO_BINNING_FACTOR,
+          ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE_MAXIMUM_RESOLUTION,
+          ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE_MAXIMUM_RESOLUTION,
+          ANDROID_SENSOR_OPAQUE_RAW_SIZE_MAXIMUM_RESOLUTION,
         } },
       {32, {
           ANDROID_INFO_DEVICE_STATE_ORIENTATIONS,
         } },
       {33, {
-          ANDROID_FLASH_INFO_STRENGTH_DEFAULT_LEVEL,
           ANDROID_AUTOMOTIVE_LENS_FACING,
           ANDROID_AUTOMOTIVE_LOCATION,
+          ANDROID_FLASH_INFO_STRENGTH_DEFAULT_LEVEL,
+          ANDROID_FLASH_INFO_STRENGTH_MAXIMUM_LEVEL,
+          ANDROID_REQUEST_AVAILABLE_DYNAMIC_RANGE_PROFILES_MAP,
           ANDROID_REQUEST_RECOMMENDED_TEN_BIT_DYNAMIC_RANGE_PROFILE,
           ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES,
-          ANDROID_REQUEST_AVAILABLE_DYNAMIC_RANGE_PROFILES_MAP,
-          ANDROID_FLASH_INFO_STRENGTH_MAXIMUM_LEVEL,
         } },
 };
 
@@ -81,9 +81,9 @@
  */
 std::map<int, std::vector<camera_metadata_tag>> dynamic_api_level_to_keys{
       {30, {
+          ANDROID_CONTROL_EXTENDED_SCENE_MODE,
           ANDROID_CONTROL_ZOOM_RATIO,
           ANDROID_SCALER_ROTATE_AND_CROP,
-          ANDROID_CONTROL_EXTENDED_SCENE_MODE,
         }  },
       {31, {
           ANDROID_SENSOR_PIXEL_MODE,
diff --git a/services/camera/libcameraservice/libcameraservice_fuzzer/Android.bp b/services/camera/libcameraservice/libcameraservice_fuzzer/Android.bp
index e43b91f..d909624 100644
--- a/services/camera/libcameraservice/libcameraservice_fuzzer/Android.bp
+++ b/services/camera/libcameraservice/libcameraservice_fuzzer/Android.bp
@@ -64,6 +64,7 @@
     fuzz_config: {
         cc: [
             "android-media-fuzzing-reports@google.com",
+            "android-camera-fwk-eng@google.com",
         ],
         componentid: 155276,
         libfuzzer_options: [
diff --git a/services/camera/libcameraservice/libcameraservice_fuzzer/camera_service_fuzzer.cpp b/services/camera/libcameraservice/libcameraservice_fuzzer/camera_service_fuzzer.cpp
index 97d7bf4..71c26ea 100644
--- a/services/camera/libcameraservice/libcameraservice_fuzzer/camera_service_fuzzer.cpp
+++ b/services/camera/libcameraservice/libcameraservice_fuzzer/camera_service_fuzzer.cpp
@@ -111,12 +111,15 @@
     size_t mPreviewBufferCount = 0;
     bool mAutoFocusMessage = false;
     bool mSnapshotNotification = false;
+    bool mRecordingNotification = false;
     mutable Mutex mPreviewLock;
     mutable Condition mPreviewCondition;
     mutable Mutex mAutoFocusLock;
     mutable Condition mAutoFocusCondition;
     mutable Mutex mSnapshotLock;
     mutable Condition mSnapshotCondition;
+    mutable Mutex mRecordingLock;
+    mutable Condition mRecordingCondition;
 
     void getNumCameras();
     void getCameraInformation(int32_t cameraId);
@@ -125,6 +128,7 @@
     void invokeDump();
     void invokeShellCommand();
     void invokeNotifyCalls();
+    void invokeTorchAPIs(int32_t cameraId);
 
     // CameraClient interface
     void notifyCallback(int32_t msgType, int32_t, int32_t) override;
@@ -152,6 +156,8 @@
             Mutex::Autolock l(mPreviewLock);
             ++mPreviewBufferCount;
             mPreviewCondition.broadcast();
+            mRecordingNotification = true;
+            mRecordingCondition.broadcast();
             break;
         }
         case CAMERA_MSG_COMPRESSED_IMAGE: {
@@ -311,114 +317,153 @@
     mCameraService->notifySystemEvent(eventId, args);
 }
 
+void CameraFuzzer::invokeTorchAPIs(int32_t cameraId) {
+    String16 cameraIdStr = String16(String8::format("%d", cameraId));
+    sp<IBinder> binder = new BBinder;
+
+    mCameraService->setTorchMode(cameraIdStr, true, binder);
+    ALOGV("Turned torch on.");
+    int32_t torchStrength = rand() % 5 + 1;
+    ALOGV("Changing torch strength level to %d", torchStrength);
+    mCameraService->turnOnTorchWithStrengthLevel(cameraIdStr, torchStrength, binder);
+    mCameraService->setTorchMode(cameraIdStr, false, binder);
+    ALOGV("Turned torch off.");
+}
+
 void CameraFuzzer::invokeCameraAPIs() {
-    for (int32_t cameraId = 0; cameraId < mNumCameras; ++cameraId) {
-        getCameraInformation(cameraId);
+    /** In order to avoid the timeout issue caused due to multiple iteration of loops, the 'for'
+     * loops are removed and the 'cameraId', 'pictureSize' and 'videoSize' are derived using the
+     * FuzzedDataProvider from the available cameras and vectors of 'pictureSizes' and 'videoSizes'
+     */
+    int32_t cameraId = mFuzzedDataProvider->ConsumeIntegralInRange<int32_t>(0, mNumCameras - 1);
+    getCameraInformation(cameraId);
+    invokeTorchAPIs(cameraId);
 
-        ::android::binder::Status rc;
-        sp<ICamera> cameraDevice;
+    ::android::binder::Status rc;
+    sp<ICamera> cameraDevice;
 
-        rc = mCameraService->connect(this, cameraId, String16(),
-                android::CameraService::USE_CALLING_UID, android::CameraService::USE_CALLING_PID,
-                /*targetSdkVersion*/__ANDROID_API_FUTURE__, &cameraDevice);
-        if (!rc.isOk()) {
-            // camera not connected
-            return;
+    rc = mCameraService->connect(this, cameraId, String16(),
+                                 android::CameraService::USE_CALLING_UID,
+                                 android::CameraService::USE_CALLING_PID,
+                                 /*targetSdkVersion*/ __ANDROID_API_FUTURE__, &cameraDevice);
+    if (!rc.isOk()) {
+        // camera not connected
+        return;
+    }
+    if (cameraDevice) {
+        sp<Surface> previewSurface;
+        sp<SurfaceControl> surfaceControl;
+        CameraParameters params(cameraDevice->getParameters());
+        String8 focusModes(params.get(CameraParameters::KEY_SUPPORTED_FOCUS_MODES));
+        bool isAFSupported = false;
+        const char* focusMode = nullptr;
+
+        if (focusModes.contains(CameraParameters::FOCUS_MODE_AUTO)) {
+            isAFSupported = true;
+        } else if (focusModes.contains(CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE;
+        } else if (focusModes.contains(CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO;
+        } else if (focusModes.contains(CameraParameters::FOCUS_MODE_MACRO)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_MACRO;
         }
-        if (cameraDevice) {
-            sp<Surface> previewSurface;
-            sp<SurfaceControl> surfaceControl;
-            CameraParameters params(cameraDevice->getParameters());
-            String8 focusModes(params.get(CameraParameters::KEY_SUPPORTED_FOCUS_MODES));
-            bool isAFSupported = false;
-            const char *focusMode = nullptr;
+        if (nullptr != focusMode) {
+            params.set(CameraParameters::KEY_FOCUS_MODE, focusMode);
+            cameraDevice->setParameters(params.flatten());
+        }
+        int previewWidth, previewHeight;
+        params.getPreviewSize(&previewWidth, &previewHeight);
 
-            if (focusModes.contains(CameraParameters::FOCUS_MODE_AUTO)) {
-                isAFSupported = true;
-            } else if (focusModes.contains(CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE)) {
-                isAFSupported = true;
-                focusMode = CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE;
-            } else if (focusModes.contains(CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO)) {
-                isAFSupported = true;
-                focusMode = CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO;
-            } else if (focusModes.contains(CameraParameters::FOCUS_MODE_MACRO)) {
-                isAFSupported = true;
-                focusMode = CameraParameters::FOCUS_MODE_MACRO;
-            }
-            if (nullptr != focusMode) {
-                params.set(CameraParameters::KEY_FOCUS_MODE, focusMode);
-                cameraDevice->setParameters(params.flatten());
-            }
-            int previewWidth, previewHeight;
-            params.getPreviewSize(&previewWidth, &previewHeight);
+        mComposerClient = new SurfaceComposerClient;
+        mComposerClient->initCheck();
 
-            mComposerClient = new SurfaceComposerClient;
-            mComposerClient->initCheck();
-
-            bool shouldPassInvalidLayerMetaData = mFuzzedDataProvider->ConsumeBool();
-            int layerMetaData;
-            if (shouldPassInvalidLayerMetaData) {
-                layerMetaData = mFuzzedDataProvider->ConsumeIntegral<int>();
-            } else {
-                layerMetaData = kLayerMetadata[mFuzzedDataProvider->ConsumeIntegralInRange<size_t>(
+        bool shouldPassInvalidLayerMetaData = mFuzzedDataProvider->ConsumeBool();
+        int layerMetaData;
+        if (shouldPassInvalidLayerMetaData) {
+            layerMetaData = mFuzzedDataProvider->ConsumeIntegral<int>();
+        } else {
+            layerMetaData = kLayerMetadata[mFuzzedDataProvider->ConsumeIntegralInRange<size_t>(
                     0, kNumLayerMetaData - 1)];
-            }
-            surfaceControl = mComposerClient->createSurface(
+        }
+        surfaceControl = mComposerClient->createSurface(
                 String8("Test Surface"), previewWidth, previewHeight,
                 CameraParameters::previewFormatToEnum(params.getPreviewFormat()), layerMetaData);
 
-            if (surfaceControl.get() != nullptr) {
-                SurfaceComposerClient::Transaction{}
+        if (surfaceControl.get()) {
+            SurfaceComposerClient::Transaction{}
                     .setLayer(surfaceControl, 0x7fffffff)
                     .show(surfaceControl)
                     .apply();
 
-                previewSurface = surfaceControl->getSurface();
+            previewSurface = surfaceControl->getSurface();
+            if (previewSurface.get()) {
                 cameraDevice->setPreviewTarget(previewSurface->getIGraphicBufferProducer());
             }
-            cameraDevice->setPreviewCallbackFlag(CAMERA_FRAME_CALLBACK_FLAG_CAMCORDER);
+        }
+        cameraDevice->setPreviewCallbackFlag(CAMERA_FRAME_CALLBACK_FLAG_CAMCORDER);
 
-            Vector<Size> pictureSizes;
-            params.getSupportedPictureSizes(pictureSizes);
+        Vector<Size> pictureSizes;
+        params.getSupportedPictureSizes(pictureSizes);
 
-            for (size_t i = 0; i < pictureSizes.size(); ++i) {
-                params.setPictureSize(pictureSizes[i].width, pictureSizes[i].height);
-                cameraDevice->setParameters(params.flatten());
-                cameraDevice->startPreview();
-                waitForPreviewStart();
-                cameraDevice->autoFocus();
-                waitForEvent(mAutoFocusLock, mAutoFocusCondition, mAutoFocusMessage);
-                bool shouldPassInvalidCameraMsg = mFuzzedDataProvider->ConsumeBool();
-                int msgType;
-                if (shouldPassInvalidCameraMsg) {
-                    msgType = mFuzzedDataProvider->ConsumeIntegral<int>();
-                } else {
-                    msgType = kCameraMsg[mFuzzedDataProvider->ConsumeIntegralInRange<size_t>(
+        if (pictureSizes.size()) {
+            Size pictureSize = pictureSizes[mFuzzedDataProvider->ConsumeIntegralInRange<size_t>(
+                    0, pictureSizes.size() - 1)];
+            params.setPictureSize(pictureSize.width, pictureSize.height);
+            cameraDevice->setParameters(params.flatten());
+            cameraDevice->startPreview();
+            waitForPreviewStart();
+            cameraDevice->autoFocus();
+            waitForEvent(mAutoFocusLock, mAutoFocusCondition, mAutoFocusMessage);
+            bool shouldPassInvalidCameraMsg = mFuzzedDataProvider->ConsumeBool();
+            int msgType;
+            if (shouldPassInvalidCameraMsg) {
+                msgType = mFuzzedDataProvider->ConsumeIntegral<int>();
+            } else {
+                msgType = kCameraMsg[mFuzzedDataProvider->ConsumeIntegralInRange<size_t>(
                         0, kNumCameraMsg - 1)];
-                }
-                cameraDevice->takePicture(msgType);
-
-                waitForEvent(mSnapshotLock, mSnapshotCondition, mSnapshotNotification);
             }
+            cameraDevice->takePicture(msgType);
 
-            Vector<Size> videoSizes;
-            params.getSupportedVideoSizes(videoSizes);
+            waitForEvent(mSnapshotLock, mSnapshotCondition, mSnapshotNotification);
+            cameraDevice->stopPreview();
+        }
 
-            for (size_t i = 0; i < videoSizes.size(); ++i) {
-                params.setVideoSize(videoSizes[i].width, videoSizes[i].height);
+        Vector<Size> videoSizes;
+        params.getSupportedVideoSizes(videoSizes);
 
-                cameraDevice->setParameters(params.flatten());
-                cameraDevice->startPreview();
-                waitForPreviewStart();
-                cameraDevice->setVideoBufferMode(
+        if (videoSizes.size()) {
+            Size videoSize = videoSizes[mFuzzedDataProvider->ConsumeIntegralInRange<size_t>(
+                    0, videoSizes.size() - 1)];
+            params.setVideoSize(videoSize.width, videoSize.height);
+
+            cameraDevice->setParameters(params.flatten());
+            cameraDevice->startPreview();
+            waitForPreviewStart();
+            cameraDevice->setVideoBufferMode(
                     android::hardware::BnCamera::VIDEO_BUFFER_MODE_BUFFER_QUEUE);
-                cameraDevice->setVideoTarget(previewSurface->getIGraphicBufferProducer());
-                cameraDevice->startRecording();
-                cameraDevice->stopRecording();
+            sp<SurfaceControl> surfaceControlVideo = mComposerClient->createSurface(
+                    String8("Test Surface Video"), previewWidth, previewHeight,
+                    CameraParameters::previewFormatToEnum(params.getPreviewFormat()),
+                    layerMetaData);
+            if (surfaceControlVideo.get()) {
+                SurfaceComposerClient::Transaction{}
+                        .setLayer(surfaceControlVideo, 0x7fffffff)
+                        .show(surfaceControlVideo)
+                        .apply();
+                sp<Surface> previewSurfaceVideo = surfaceControlVideo->getSurface();
+                if (previewSurfaceVideo.get()) {
+                    cameraDevice->setVideoTarget(previewSurfaceVideo->getIGraphicBufferProducer());
+                }
             }
             cameraDevice->stopPreview();
-            cameraDevice->disconnect();
+            cameraDevice->startRecording();
+            waitForEvent(mRecordingLock, mRecordingCondition, mRecordingNotification);
+            cameraDevice->stopRecording();
         }
+        cameraDevice->disconnect();
     }
 }
 
diff --git a/services/camera/libcameraservice/tests/Android.bp b/services/camera/libcameraservice/tests/Android.bp
index 3616572..4d7798c 100644
--- a/services/camera/libcameraservice/tests/Android.bp
+++ b/services/camera/libcameraservice/tests/Android.bp
@@ -27,8 +27,13 @@
         "external/dynamic_depth/internal",
     ],
 
+    header_libs: [
+        "libmedia_headers",
+    ],
+
     shared_libs: [
         "libbase",
+        "libbinder",
         "libcutils",
         "libcameraservice",
         "libhidlbase",
@@ -57,6 +62,7 @@
     ],
 
     srcs: [
+        "CameraPermissionsTest.cpp",
         "CameraProviderManagerTest.cpp",
         "ClientManagerTest.cpp",
         "DepthProcessorTest.cpp",
diff --git a/services/camera/libcameraservice/tests/CameraPermissionsTest.cpp b/services/camera/libcameraservice/tests/CameraPermissionsTest.cpp
new file mode 100644
index 0000000..4359f9b
--- /dev/null
+++ b/services/camera/libcameraservice/tests/CameraPermissionsTest.cpp
@@ -0,0 +1,298 @@
+/*
+ * 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.
+ */
+
+#include <android/hardware/BnCameraServiceListener.h>
+#include <android/hardware/BnCameraServiceProxy.h>
+#include <android/hardware/camera2/BnCameraDeviceCallbacks.h>
+#include <android/hardware/ICameraService.h>
+
+#include <private/android_filesystem_config.h>
+
+#include "../CameraService.h"
+#include "../utils/CameraServiceProxyWrapper.h"
+
+#include <gtest/gtest.h>
+
+#include <memory>
+#include <vector>
+
+using namespace android;
+using namespace android::hardware::camera;
+
+// Empty service listener.
+class TestCameraServiceListener : public hardware::BnCameraServiceListener {
+public:
+    virtual ~TestCameraServiceListener() {};
+
+    virtual binder::Status onStatusChanged(int32_t , const String16&) {
+        return binder::Status::ok();
+    };
+
+    virtual binder::Status onPhysicalCameraStatusChanged(int32_t /*status*/,
+            const String16& /*cameraId*/, const String16& /*physicalCameraId*/) {
+        // No op
+        return binder::Status::ok();
+    };
+
+    virtual binder::Status onTorchStatusChanged(int32_t /*status*/, const String16& /*cameraId*/) {
+        return binder::Status::ok();
+    };
+
+    virtual binder::Status onCameraAccessPrioritiesChanged() {
+        // No op
+        return binder::Status::ok();
+    }
+
+    virtual binder::Status onCameraOpened(const String16& /*cameraId*/,
+            const String16& /*clientPackageName*/) {
+        // No op
+        return binder::Status::ok();
+    }
+
+    virtual binder::Status onCameraClosed(const String16& /*cameraId*/) {
+        // No op
+        return binder::Status::ok();
+    }
+
+    virtual binder::Status onTorchStrengthLevelChanged(const String16& /*cameraId*/,
+            int32_t /*torchStrength*/) {
+        // No op
+        return binder::Status::ok();
+    }
+};
+
+// Empty device callback.
+class TestCameraDeviceCallbacks : public hardware::camera2::BnCameraDeviceCallbacks {
+public:
+    TestCameraDeviceCallbacks() {}
+
+    virtual ~TestCameraDeviceCallbacks() {}
+
+    virtual binder::Status onDeviceError(int /*errorCode*/,
+            const CaptureResultExtras& /*resultExtras*/) {
+        return binder::Status::ok();
+    }
+
+    virtual binder::Status onDeviceIdle() {
+        return binder::Status::ok();
+    }
+
+    virtual binder::Status onCaptureStarted(const CaptureResultExtras& /*resultExtras*/,
+            int64_t /*timestamp*/) {
+        return binder::Status::ok();
+    }
+
+    virtual binder::Status onResultReceived(const CameraMetadata& /*metadata*/,
+            const CaptureResultExtras& /*resultExtras*/,
+            const std::vector<PhysicalCaptureResultInfo>& /*physicalResultInfos*/) {
+        return binder::Status::ok();
+    }
+
+    virtual binder::Status onPrepared(int /*streamId*/) {
+        return binder::Status::ok();
+    }
+
+    virtual binder::Status onRepeatingRequestError(
+            int64_t /*lastFrameNumber*/, int32_t /*stoppedSequenceId*/) {
+        return binder::Status::ok();
+    }
+
+    virtual binder::Status onRequestQueueEmpty() {
+        return binder::Status::ok();
+    }
+};
+
+// Override isCameraDisabled from the CameraServiceProxy with a flag.
+class CameraServiceProxyOverride : public ::android::hardware::BnCameraServiceProxy {
+public:
+    CameraServiceProxyOverride() :
+            mCameraServiceProxy(CameraServiceProxyWrapper::getDefaultCameraServiceProxy()),
+            mCameraDisabled(false), mOverrideCameraDisabled(false)
+    { }
+
+    virtual binder::Status getRotateAndCropOverride(const String16& packageName, int lensFacing,
+            int userId, int *ret) override {
+        return mCameraServiceProxy->getRotateAndCropOverride(packageName, lensFacing,
+                userId, ret);
+    }
+
+    virtual binder::Status pingForUserUpdate() override {
+        return mCameraServiceProxy->pingForUserUpdate();
+    }
+
+    virtual binder::Status notifyCameraState(
+            const hardware::CameraSessionStats& cameraSessionStats) override {
+        return mCameraServiceProxy->notifyCameraState(cameraSessionStats);
+    }
+
+    virtual binder::Status isCameraDisabled(bool *ret) override {
+        if (mOverrideCameraDisabled) {
+            *ret = mCameraDisabled;
+            return binder::Status::ok();
+        }
+        return mCameraServiceProxy->isCameraDisabled(ret);
+    }
+
+    void setCameraDisabled(bool cameraDisabled) {
+        mCameraDisabled = cameraDisabled;
+    }
+
+    void setOverrideCameraDisabled(bool overrideCameraDisabled) {
+        mOverrideCameraDisabled = overrideCameraDisabled;
+    }
+
+protected:
+    sp<hardware::ICameraServiceProxy> mCameraServiceProxy;
+    bool mCameraDisabled;
+    bool mOverrideCameraDisabled;
+};
+
+class AutoDisconnectDevice {
+public:
+    AutoDisconnectDevice(sp<hardware::camera2::ICameraDeviceUser> device) :
+            mDevice(device)
+    { }
+
+    ~AutoDisconnectDevice() {
+        if (mDevice != nullptr) { 
+            mDevice->disconnect();
+        }
+    }
+
+private:
+    sp<hardware::camera2::ICameraDeviceUser> mDevice;
+};
+
+class CameraPermissionsTest : public ::testing::Test {
+protected:
+    static sp<CameraService> sCameraService;
+    static sp<CameraServiceProxyOverride> sCameraServiceProxy;
+    static std::shared_ptr<CameraServiceProxyWrapper> sCameraServiceProxyWrapper;
+    static uid_t sOldUid;
+
+    static void SetUpTestSuite() {
+        sOldUid = getuid();
+        setuid(AID_CAMERASERVER);
+        sCameraServiceProxy = new CameraServiceProxyOverride();
+        sCameraServiceProxyWrapper =
+            std::make_shared<CameraServiceProxyWrapper>(sCameraServiceProxy);
+        sCameraService = new CameraService(sCameraServiceProxyWrapper);
+        sCameraService->clearCachedVariables();
+    }
+
+    static void TearDownTestSuite() {
+        sCameraServiceProxyWrapper = nullptr;
+        sCameraServiceProxy = nullptr;
+        sCameraService = nullptr;
+        setuid(sOldUid);
+    }
+};
+
+sp<CameraService> CameraPermissionsTest::sCameraService = nullptr;
+sp<CameraServiceProxyOverride> CameraPermissionsTest::sCameraServiceProxy = nullptr;
+std::shared_ptr<CameraServiceProxyWrapper>
+CameraPermissionsTest::sCameraServiceProxyWrapper = nullptr;
+uid_t CameraPermissionsTest::sOldUid = 0;
+
+// Test that camera connections fail with ERROR_DISABLED when the camera is disabled via device
+// policy, and succeed when it isn't.
+TEST_F(CameraPermissionsTest, TestCameraDisabled) {
+    std::vector<hardware::CameraStatus> statuses;
+    sp<TestCameraServiceListener> serviceListener = new TestCameraServiceListener();
+    sCameraService->addListenerTest(serviceListener, &statuses);
+    sCameraServiceProxy->setOverrideCameraDisabled(true);
+
+    sCameraServiceProxy->setCameraDisabled(true);
+    for (auto s : statuses) {
+        sp<TestCameraDeviceCallbacks> callbacks = new TestCameraDeviceCallbacks();
+        sp<hardware::camera2::ICameraDeviceUser> device;
+        binder::Status status =
+                sCameraService->connectDevice(callbacks, String16(s.cameraId), String16(), {},
+                android::CameraService::USE_CALLING_UID, 0/*oomScoreDiff*/,
+                /*targetSdkVersion*/__ANDROID_API_FUTURE__, &device);
+        AutoDisconnectDevice autoDisconnect(device);
+        ASSERT_TRUE(!status.isOk()) << "connectDevice returned OK status";
+        ASSERT_EQ(status.serviceSpecificErrorCode(), hardware::ICameraService::ERROR_DISABLED)
+                << "connectDevice returned exception code " << status.exceptionCode();
+    }
+
+    sCameraServiceProxy->setCameraDisabled(false);
+    for (auto s : statuses) {
+        sp<TestCameraDeviceCallbacks> callbacks = new TestCameraDeviceCallbacks();
+        sp<hardware::camera2::ICameraDeviceUser> device;
+        binder::Status status =
+                sCameraService->connectDevice(callbacks, String16(s.cameraId), String16(), {},
+                android::CameraService::USE_CALLING_UID, 0/*oomScoreDiff*/,
+                /*targetSdkVersion*/__ANDROID_API_FUTURE__, &device);
+        AutoDisconnectDevice autoDisconnect(device);
+        ASSERT_TRUE(status.isOk());
+    }
+}
+
+// Test that consecutive camera connections succeed.
+TEST_F(CameraPermissionsTest, TestConsecutiveConnections) {
+    std::vector<hardware::CameraStatus> statuses;
+    sp<TestCameraServiceListener> serviceListener = new TestCameraServiceListener();
+    sCameraService->addListenerTest(serviceListener, &statuses);
+    sCameraServiceProxy->setOverrideCameraDisabled(false);
+
+    for (auto s : statuses) {
+        sp<TestCameraDeviceCallbacks> callbacks = new TestCameraDeviceCallbacks();
+        sp<hardware::camera2::ICameraDeviceUser> deviceA, deviceB;
+        binder::Status status =
+                sCameraService->connectDevice(callbacks, String16(s.cameraId), String16(), {},
+                android::CameraService::USE_CALLING_UID, 0/*oomScoreDiff*/,
+                /*targetSdkVersion*/__ANDROID_API_FUTURE__, &deviceA);
+        AutoDisconnectDevice autoDisconnectA(deviceA);
+        ASSERT_TRUE(status.isOk()) << "Exception code " << status.exceptionCode() <<
+                " service specific error code " << status.serviceSpecificErrorCode();
+        status =
+                sCameraService->connectDevice(callbacks, String16(s.cameraId), String16(), {},
+                android::CameraService::USE_CALLING_UID, 0/*oomScoreDiff*/,
+                /*targetSdkVersion*/__ANDROID_API_FUTURE__, &deviceB);
+        AutoDisconnectDevice autoDisconnectB(deviceB);
+        ASSERT_TRUE(status.isOk()) << "Exception code " << status.exceptionCode() <<
+                " service specific error code " << status.serviceSpecificErrorCode();
+    }
+}
+
+// Test that consecutive camera connections succeed even when a nonzero oomScoreOffset is provided
+// in the second call.
+TEST_F(CameraPermissionsTest, TestConflictingOomScoreOffset) {
+    std::vector<hardware::CameraStatus> statuses;
+    sp<TestCameraServiceListener> serviceListener = new TestCameraServiceListener();
+    sCameraService->addListenerTest(serviceListener, &statuses);
+    sCameraServiceProxy->setOverrideCameraDisabled(false);
+
+    for (auto s : statuses) {
+        sp<TestCameraDeviceCallbacks> callbacks = new TestCameraDeviceCallbacks();
+        sp<hardware::camera2::ICameraDeviceUser> deviceA, deviceB;
+        binder::Status status =
+                sCameraService->connectDevice(callbacks, String16(s.cameraId), String16(), {},
+                android::CameraService::USE_CALLING_UID, 0/*oomScoreDiff*/,
+                /*targetSdkVersion*/__ANDROID_API_FUTURE__, &deviceA);
+        AutoDisconnectDevice autoDisconnectA(deviceA);
+        ASSERT_TRUE(status.isOk()) << "Exception code " << status.exceptionCode() <<
+                " service specific error code " << status.serviceSpecificErrorCode();
+        status =
+                sCameraService->connectDevice(callbacks, String16(s.cameraId), String16(), {},
+                android::CameraService::USE_CALLING_UID, 1/*oomScoreDiff*/,
+                /*targetSdkVersion*/__ANDROID_API_FUTURE__, &deviceB);
+        AutoDisconnectDevice autoDisconnectB(deviceB);
+        ASSERT_TRUE(status.isOk()) << "Exception code " << status.exceptionCode() <<
+                " service specific error code " << status.serviceSpecificErrorCode();
+    }
+}
diff --git a/services/camera/libcameraservice/utils/CameraServiceProxyWrapper.cpp b/services/camera/libcameraservice/utils/CameraServiceProxyWrapper.cpp
index 69175cc..733ecd9 100644
--- a/services/camera/libcameraservice/utils/CameraServiceProxyWrapper.cpp
+++ b/services/camera/libcameraservice/utils/CameraServiceProxyWrapper.cpp
@@ -29,29 +29,29 @@
 using hardware::ICameraServiceProxy;
 using hardware::CameraSessionStats;
 
-Mutex CameraServiceProxyWrapper::sProxyMutex;
-sp<hardware::ICameraServiceProxy> CameraServiceProxyWrapper::sCameraServiceProxy;
-
-Mutex CameraServiceProxyWrapper::mLock;
-std::map<String8, std::shared_ptr<CameraServiceProxyWrapper::CameraSessionStatsWrapper>>
-        CameraServiceProxyWrapper::mSessionStatsMap;
-
 /**
  * CameraSessionStatsWrapper functions
  */
 
-void CameraServiceProxyWrapper::CameraSessionStatsWrapper::onOpen() {
-    Mutex::Autolock l(mLock);
-
-    updateProxyDeviceState(mSessionStats);
+void CameraServiceProxyWrapper::CameraSessionStatsWrapper::updateProxyDeviceState(
+        sp<hardware::ICameraServiceProxy>& proxyBinder) {
+    if (proxyBinder == nullptr) return;
+    proxyBinder->notifyCameraState(mSessionStats);
 }
 
-void CameraServiceProxyWrapper::CameraSessionStatsWrapper::onClose(int32_t latencyMs) {
+void CameraServiceProxyWrapper::CameraSessionStatsWrapper::onOpen(
+        sp<hardware::ICameraServiceProxy>& proxyBinder) {
+    Mutex::Autolock l(mLock);
+    updateProxyDeviceState(proxyBinder);
+}
+
+void CameraServiceProxyWrapper::CameraSessionStatsWrapper::onClose(
+    sp<hardware::ICameraServiceProxy>& proxyBinder, int32_t latencyMs) {
     Mutex::Autolock l(mLock);
 
     mSessionStats.mNewCameraState = CameraSessionStats::CAMERA_STATE_CLOSED;
     mSessionStats.mLatencyMs = latencyMs;
-    updateProxyDeviceState(mSessionStats);
+    updateProxyDeviceState(proxyBinder);
 }
 
 void CameraServiceProxyWrapper::CameraSessionStatsWrapper::onStreamConfigured(
@@ -66,12 +66,13 @@
     }
 }
 
-void CameraServiceProxyWrapper::CameraSessionStatsWrapper::onActive(float maxPreviewFps) {
+void CameraServiceProxyWrapper::CameraSessionStatsWrapper::onActive(
+    sp<hardware::ICameraServiceProxy>& proxyBinder, float maxPreviewFps) {
     Mutex::Autolock l(mLock);
 
     mSessionStats.mNewCameraState = CameraSessionStats::CAMERA_STATE_ACTIVE;
     mSessionStats.mMaxPreviewFps = maxPreviewFps;
-    updateProxyDeviceState(mSessionStats);
+    updateProxyDeviceState(proxyBinder);
 
     // Reset mCreationDuration to -1 to distinguish between 1st session
     // after configuration, and all other sessions after configuration.
@@ -79,6 +80,7 @@
 }
 
 void CameraServiceProxyWrapper::CameraSessionStatsWrapper::onIdle(
+        sp<hardware::ICameraServiceProxy>& proxyBinder,
         int64_t requestCount, int64_t resultErrorCount, bool deviceError,
         const std::string& userTag, int32_t videoStabilizationMode,
         const std::vector<hardware::CameraStreamStats>& streamStats) {
@@ -91,7 +93,7 @@
     mSessionStats.mUserTag = String16(userTag.c_str());
     mSessionStats.mVideoStabilizationMode = videoStabilizationMode;
     mSessionStats.mStreamStats = streamStats;
-    updateProxyDeviceState(mSessionStats);
+    updateProxyDeviceState(proxyBinder);
 
     mSessionStats.mInternalReconfigure = 0;
     mSessionStats.mStreamStats.clear();
@@ -103,19 +105,26 @@
 
 sp<ICameraServiceProxy> CameraServiceProxyWrapper::getCameraServiceProxy() {
 #ifndef __BRILLO__
-    Mutex::Autolock al(sProxyMutex);
-    if (sCameraServiceProxy == nullptr) {
-        sp<IServiceManager> sm = defaultServiceManager();
-        // Use checkService because cameraserver normally starts before the
-        // system server and the proxy service. So the long timeout that getService
-        // has before giving up is inappropriate.
-        sp<IBinder> binder = sm->checkService(String16("media.camera.proxy"));
-        if (binder != nullptr) {
-            sCameraServiceProxy = interface_cast<ICameraServiceProxy>(binder);
-        }
+    Mutex::Autolock al(mProxyMutex);
+    if (mCameraServiceProxy == nullptr) {
+        mCameraServiceProxy = getDefaultCameraServiceProxy();
     }
 #endif
-    return sCameraServiceProxy;
+    return mCameraServiceProxy;
+}
+
+sp<hardware::ICameraServiceProxy> CameraServiceProxyWrapper::getDefaultCameraServiceProxy() {
+#ifndef __BRILLO__
+    sp<IServiceManager> sm = defaultServiceManager();
+    // Use checkService because cameraserver normally starts before the
+    // system server and the proxy service. So the long timeout that getService
+    // has before giving up is inappropriate.
+    sp<IBinder> binder = sm->checkService(String16("media.camera.proxy"));
+    if (binder != nullptr) {
+        return interface_cast<ICameraServiceProxy>(binder);
+    }
+#endif
+    return nullptr;
 }
 
 void CameraServiceProxyWrapper::pingCameraServiceProxy() {
@@ -138,12 +147,6 @@
     return ret;
 }
 
-void CameraServiceProxyWrapper::updateProxyDeviceState(const CameraSessionStats& sessionStats) {
-    sp<ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
-    if (proxyBinder == nullptr) return;
-    proxyBinder->notifyCameraState(sessionStats);
-}
-
 void CameraServiceProxyWrapper::logStreamConfigured(const String8& id,
         int operatingMode, bool internalConfig, int32_t latencyMs) {
     std::shared_ptr<CameraSessionStatsWrapper> sessionStats;
@@ -175,7 +178,8 @@
     }
 
     ALOGV("%s: id %s", __FUNCTION__, id.c_str());
-    sessionStats->onActive(maxPreviewFps);
+    sp<hardware::ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
+    sessionStats->onActive(proxyBinder, maxPreviewFps);
 }
 
 void CameraServiceProxyWrapper::logIdle(const String8& id,
@@ -205,7 +209,8 @@
                 streamStats[i].mStartLatencyMs);
     }
 
-    sessionStats->onIdle(requestCount, resultErrorCount, deviceError, userTag,
+    sp<hardware::ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
+    sessionStats->onIdle(proxyBinder, requestCount, resultErrorCount, deviceError, userTag,
             videoStabilizationMode, streamStats);
 }
 
@@ -235,7 +240,8 @@
 
     ALOGV("%s: id %s, facing %d, effectiveApiLevel %d, isNdk %d, latencyMs %d",
             __FUNCTION__, id.c_str(), facing, effectiveApiLevel, isNdk, latencyMs);
-    sessionStats->onOpen();
+    sp<hardware::ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
+    sessionStats->onOpen(proxyBinder);
 }
 
 void CameraServiceProxyWrapper::logClose(const String8& id, int32_t latencyMs) {
@@ -259,7 +265,8 @@
     }
 
     ALOGV("%s: id %s, latencyMs %d", __FUNCTION__, id.c_str(), latencyMs);
-    sessionStats->onClose(latencyMs);
+    sp<hardware::ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
+    sessionStats->onClose(proxyBinder, latencyMs);
 }
 
 bool CameraServiceProxyWrapper::isCameraDisabled() {
diff --git a/services/camera/libcameraservice/utils/CameraServiceProxyWrapper.h b/services/camera/libcameraservice/utils/CameraServiceProxyWrapper.h
index e34a8f0..6af56c3 100644
--- a/services/camera/libcameraservice/utils/CameraServiceProxyWrapper.h
+++ b/services/camera/libcameraservice/utils/CameraServiceProxyWrapper.h
@@ -32,72 +32,80 @@
 class CameraServiceProxyWrapper {
 private:
     // Guard mCameraServiceProxy
-    static Mutex sProxyMutex;
+    Mutex mProxyMutex;
     // Cached interface to the camera service proxy in system service
-    static sp<hardware::ICameraServiceProxy> sCameraServiceProxy;
+    sp<hardware::ICameraServiceProxy> mCameraServiceProxy;
 
-    struct CameraSessionStatsWrapper {
+    class CameraSessionStatsWrapper {
+    private:
         hardware::CameraSessionStats mSessionStats;
         Mutex mLock; // lock for per camera session stats
 
+        /**
+         * Update the session stats of a given camera device (open/close/active/idle) with
+         * the camera proxy service in the system service
+         */
+        void updateProxyDeviceState(sp<hardware::ICameraServiceProxy>& proxyBinder);
+
+    public:
         CameraSessionStatsWrapper(const String16& cameraId, int facing, int newCameraState,
                 const String16& clientName, int apiLevel, bool isNdk, int32_t latencyMs) :
             mSessionStats(cameraId, facing, newCameraState, clientName, apiLevel, isNdk, latencyMs)
-            {}
+            { }
 
-        void onOpen();
-        void onClose(int32_t latencyMs);
+        void onOpen(sp<hardware::ICameraServiceProxy>& proxyBinder);
+        void onClose(sp<hardware::ICameraServiceProxy>& proxyBinder, int32_t latencyMs);
         void onStreamConfigured(int operatingMode, bool internalReconfig, int32_t latencyMs);
-        void onActive(float maxPreviewFps);
-        void onIdle(int64_t requestCount, int64_t resultErrorCount, bool deviceError,
+        void onActive(sp<hardware::ICameraServiceProxy>& proxyBinder, float maxPreviewFps);
+        void onIdle(sp<hardware::ICameraServiceProxy>& proxyBinder,
+                int64_t requestCount, int64_t resultErrorCount, bool deviceError,
                 const std::string& userTag, int32_t videoStabilizationMode,
                 const std::vector<hardware::CameraStreamStats>& streamStats);
     };
 
     // Lock for camera session stats map
-    static Mutex mLock;
+    Mutex mLock;
     // Map from camera id to the camera's session statistics
-    static std::map<String8, std::shared_ptr<CameraSessionStatsWrapper>> mSessionStatsMap;
+    std::map<String8, std::shared_ptr<CameraSessionStatsWrapper>> mSessionStatsMap;
 
-    /**
-     * Update the session stats of a given camera device (open/close/active/idle) with
-     * the camera proxy service in the system service
-     */
-    static void updateProxyDeviceState(
-            const hardware::CameraSessionStats& sessionStats);
-
-    static sp<hardware::ICameraServiceProxy> getCameraServiceProxy();
+    sp<hardware::ICameraServiceProxy> getCameraServiceProxy();
 
 public:
+    CameraServiceProxyWrapper(sp<hardware::ICameraServiceProxy> serviceProxy = nullptr) :
+            mCameraServiceProxy(serviceProxy)
+    { }
+
+    static sp<hardware::ICameraServiceProxy> getDefaultCameraServiceProxy();
+
     // Open
-    static void logOpen(const String8& id, int facing,
+    void logOpen(const String8& id, int facing,
             const String16& clientPackageName, int apiLevel, bool isNdk,
             int32_t latencyMs);
 
     // Close
-    static void logClose(const String8& id, int32_t latencyMs);
+    void logClose(const String8& id, int32_t latencyMs);
 
     // Stream configuration
-    static void logStreamConfigured(const String8& id, int operatingMode, bool internalReconfig,
+    void logStreamConfigured(const String8& id, int operatingMode, bool internalReconfig,
             int32_t latencyMs);
 
     // Session state becomes active
-    static void logActive(const String8& id, float maxPreviewFps);
+    void logActive(const String8& id, float maxPreviewFps);
 
     // Session state becomes idle
-    static void logIdle(const String8& id,
+    void logIdle(const String8& id,
             int64_t requestCount, int64_t resultErrorCount, bool deviceError,
             const std::string& userTag, int32_t videoStabilizationMode,
             const std::vector<hardware::CameraStreamStats>& streamStats);
 
     // Ping camera service proxy for user update
-    static void pingCameraServiceProxy();
+    void pingCameraServiceProxy();
 
     // Return the current top activity rotate and crop override.
-    static int getRotateAndCropOverride(String16 packageName, int lensFacing, int userId);
+    int getRotateAndCropOverride(String16 packageName, int lensFacing, int userId);
 
     // Detect if the camera is disabled by device policy.
-    static bool isCameraDisabled();
+    bool isCameraDisabled();
 };
 
 } // android
diff --git a/services/camera/libcameraservice/utils/SessionConfigurationUtils.cpp b/services/camera/libcameraservice/utils/SessionConfigurationUtils.cpp
index 7dde268..ed490a8 100644
--- a/services/camera/libcameraservice/utils/SessionConfigurationUtils.cpp
+++ b/services/camera/libcameraservice/utils/SessionConfigurationUtils.cpp
@@ -127,7 +127,7 @@
 
 size_t getUHRMaxJpegBufferSize(camera3::Size uhrMaxJpegSize,
         camera3::Size defaultMaxJpegSize, size_t defaultMaxJpegBufferSize) {
-    return (uhrMaxJpegSize.width * uhrMaxJpegSize.height) /
+    return ((float)(uhrMaxJpegSize.width * uhrMaxJpegSize.height)) /
             (defaultMaxJpegSize.width * defaultMaxJpegSize.height) * defaultMaxJpegBufferSize;
 }
 
diff --git a/services/oboeservice/AAudioServiceEndpointMMAP.cpp b/services/oboeservice/AAudioServiceEndpointMMAP.cpp
index 3f18b95..bbfa0b7 100644
--- a/services/oboeservice/AAudioServiceEndpointMMAP.cpp
+++ b/services/oboeservice/AAudioServiceEndpointMMAP.cpp
@@ -228,9 +228,6 @@
     if (mMmapStream != nullptr) {
         // Needs to be explicitly cleared or CTS will fail but it is not clear why.
         mMmapStream.clear();
-        // Apparently the above close is asynchronous. An attempt to open a new device
-        // right after a close can fail. Also some callbacks may still be in flight!
-        // FIXME Make closing synchronous.
         AudioClock::sleepForNanos(100 * AAUDIO_NANOS_PER_MILLISECOND);
     }
 }
@@ -362,12 +359,8 @@
     asyncTask.detach();
 }
 
-void AAudioServiceEndpointMMAP::onVolumeChanged(audio_channel_mask_t channels,
-                                              android::Vector<float> values) {
-    // TODO Do we really need a different volume for each channel?
-    // We get called with an array filled with a single value!
-    float volume = values[0];
-    ALOGD("%s() volume[0] = %f", __func__, volume);
+void AAudioServiceEndpointMMAP::onVolumeChanged(float volume) {
+    ALOGD("%s() volume = %f", __func__, volume);
     std::lock_guard<std::mutex> lock(mLockStreams);
     for(const auto& stream : mRegisteredStreams) {
         stream->onVolumeChanged(volume);
diff --git a/services/oboeservice/AAudioServiceEndpointMMAP.h b/services/oboeservice/AAudioServiceEndpointMMAP.h
index 3e7f2c7..3658c58 100644
--- a/services/oboeservice/AAudioServiceEndpointMMAP.h
+++ b/services/oboeservice/AAudioServiceEndpointMMAP.h
@@ -77,8 +77,7 @@
     // -------------- Callback functions for MmapStreamCallback ---------------------
     void onTearDown(audio_port_handle_t portHandle) override;
 
-    void onVolumeChanged(audio_channel_mask_t channels,
-                         android::Vector<float> values) override;
+    void onVolumeChanged(float volume) override;
 
     void onRoutingChanged(audio_port_handle_t portHandle) override;
     // ------------------------------------------------------------------------------
diff --git a/services/tuner/main_tunerservice.cpp b/services/tuner/main_tunerservice.cpp
index a014dea..43ff95c 100644
--- a/services/tuner/main_tunerservice.cpp
+++ b/services/tuner/main_tunerservice.cpp
@@ -40,6 +40,7 @@
         CHECK(status == STATUS_OK);
     }
 
+    ProcessState::self()->setThreadPoolMaxThreadCount(8);
     ProcessState::self()->startThreadPool();
     IPCThreadState::self()->joinThreadPool();
     return EXIT_FAILURE;  // should not reached