Merge "Support bit-perfect PCM playback."
diff --git a/drm/libmediadrm/CryptoHalAidl.cpp b/drm/libmediadrm/CryptoHalAidl.cpp
index 8b9d1de..f01ecb3 100644
--- a/drm/libmediadrm/CryptoHalAidl.cpp
+++ b/drm/libmediadrm/CryptoHalAidl.cpp
@@ -41,7 +41,7 @@
 using ::aidl::android::hardware::drm::DecryptArgs;
 
 using ::android::sp;
-using ::android::DrmUtils::statusAidlToStatusT;
+using ::android::DrmUtils::statusAidlToDrmStatus;
 using ::android::hardware::hidl_array;
 using ::android::hardware::hidl_handle;
 using ::android::hardware::hidl_memory;
@@ -268,7 +268,7 @@
     }
 
     auto err = mPlugin->setMediaDrmSession(toStdVec(sessionId));
-    return statusAidlToStatusT(err);
+    return statusAidlToDrmStatus(err);
 }
 
 ssize_t CryptoHalAidl::decrypt(const uint8_t keyId[16], const uint8_t iv[16],
@@ -352,7 +352,7 @@
     int32_t result = 0;
     ::ndk::ScopedAStatus statusAidl = mPlugin->decrypt(args, &result);
 
-    err = statusAidlToStatusT(statusAidl);
+    err = statusAidlToDrmStatus(statusAidl);
     std::string msgStr(statusAidl.getMessage());
     if (errorDetailMsg != nullptr) {
         *errorDetailMsg = toString8(msgStr);
diff --git a/drm/libmediadrm/DrmHal.cpp b/drm/libmediadrm/DrmHal.cpp
index c394d5a..754f066 100644
--- a/drm/libmediadrm/DrmHal.cpp
+++ b/drm/libmediadrm/DrmHal.cpp
@@ -20,6 +20,7 @@
 #include <mediadrm/DrmHal.h>
 #include <mediadrm/DrmHalAidl.h>
 #include <mediadrm/DrmHalHidl.h>
+#include <mediadrm/DrmStatus.h>
 #include <mediadrm/DrmUtils.h>
 
 namespace android {
@@ -31,49 +32,49 @@
 
 DrmHal::~DrmHal() {}
 
-status_t DrmHal::initCheck() const {
-    if (mDrmHalAidl->initCheck() == OK || mDrmHalHidl->initCheck() == OK) return OK;
-    if (mDrmHalAidl->initCheck() == NO_INIT || mDrmHalHidl->initCheck() == NO_INIT) return NO_INIT;
+DrmStatus DrmHal::initCheck() const {
+    if (mDrmHalAidl->initCheck() == OK || mDrmHalHidl->initCheck() == OK) return DrmStatus(OK);
+    if (mDrmHalAidl->initCheck() == NO_INIT || mDrmHalHidl->initCheck() == NO_INIT)
+        return DrmStatus(NO_INIT);
     return mDrmHalHidl->initCheck();
 }
 
-status_t DrmHal::isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
-                                         DrmPlugin::SecurityLevel securityLevel, bool* result) {
-    status_t statusResult;
-    statusResult = mDrmHalAidl->isCryptoSchemeSupported(uuid, mimeType, securityLevel, result);
+DrmStatus DrmHal::isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
+                                          DrmPlugin::SecurityLevel securityLevel, bool* result) {
+    DrmStatus statusResult =
+            mDrmHalAidl->isCryptoSchemeSupported(uuid, mimeType, securityLevel, result);
     if (*result) return statusResult;
     return mDrmHalHidl->isCryptoSchemeSupported(uuid, mimeType, securityLevel, result);
 }
 
-status_t DrmHal::createPlugin(const uint8_t uuid[16], const String8& appPackageName) {
-    status_t statusResult;
-    statusResult = mDrmHalAidl->createPlugin(uuid, appPackageName);
-    if (statusResult != OK) return mDrmHalHidl->createPlugin(uuid, appPackageName);
-    return statusResult;
+DrmStatus DrmHal::createPlugin(const uint8_t uuid[16], const String8& appPackageName) {
+    return mDrmHalAidl->createPlugin(uuid, appPackageName) == OK
+                   ? DrmStatus(OK)
+                   : mDrmHalHidl->createPlugin(uuid, appPackageName);
 }
 
-status_t DrmHal::destroyPlugin() {
-    status_t statusResult = mDrmHalAidl->destroyPlugin();
-    status_t statusResultHidl = mDrmHalHidl->destroyPlugin();
+DrmStatus DrmHal::destroyPlugin() {
+    DrmStatus statusResult = mDrmHalAidl->destroyPlugin();
+    DrmStatus statusResultHidl = mDrmHalHidl->destroyPlugin();
     if (statusResult != OK) return statusResult;
     return statusResultHidl;
 }
 
-status_t DrmHal::openSession(DrmPlugin::SecurityLevel securityLevel, Vector<uint8_t>& sessionId) {
+DrmStatus DrmHal::openSession(DrmPlugin::SecurityLevel securityLevel, Vector<uint8_t>& sessionId) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->openSession(securityLevel, sessionId);
     return mDrmHalHidl->openSession(securityLevel, sessionId);
 }
 
-status_t DrmHal::closeSession(Vector<uint8_t> const& sessionId) {
+DrmStatus DrmHal::closeSession(Vector<uint8_t> const& sessionId) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->closeSession(sessionId);
     return mDrmHalHidl->closeSession(sessionId);
 }
 
-status_t DrmHal::getKeyRequest(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& initData,
-                               String8 const& mimeType, DrmPlugin::KeyType keyType,
-                               KeyedVector<String8, String8> const& optionalParameters,
-                               Vector<uint8_t>& request, String8& defaultUrl,
-                               DrmPlugin::KeyRequestType* keyRequestType) {
+DrmStatus DrmHal::getKeyRequest(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& initData,
+                                String8 const& mimeType, DrmPlugin::KeyType keyType,
+                                KeyedVector<String8, String8> const& optionalParameters,
+                                Vector<uint8_t>& request, String8& defaultUrl,
+                                DrmPlugin::KeyRequestType* keyRequestType) {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->getKeyRequest(sessionId, initData, mimeType, keyType,
                                           optionalParameters, request, defaultUrl, keyRequestType);
@@ -81,212 +82,212 @@
                                       request, defaultUrl, keyRequestType);
 }
 
-status_t DrmHal::provideKeyResponse(Vector<uint8_t> const& sessionId,
-                                    Vector<uint8_t> const& response, Vector<uint8_t>& keySetId) {
+DrmStatus DrmHal::provideKeyResponse(Vector<uint8_t> const& sessionId,
+                                     Vector<uint8_t> const& response, Vector<uint8_t>& keySetId) {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->provideKeyResponse(sessionId, response, keySetId);
     return mDrmHalHidl->provideKeyResponse(sessionId, response, keySetId);
 }
 
-status_t DrmHal::removeKeys(Vector<uint8_t> const& keySetId) {
+DrmStatus DrmHal::removeKeys(Vector<uint8_t> const& keySetId) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->removeKeys(keySetId);
     return mDrmHalHidl->removeKeys(keySetId);
 }
 
-status_t DrmHal::restoreKeys(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keySetId) {
+DrmStatus DrmHal::restoreKeys(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keySetId) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->restoreKeys(sessionId, keySetId);
     return mDrmHalHidl->restoreKeys(sessionId, keySetId);
 }
 
-status_t DrmHal::queryKeyStatus(Vector<uint8_t> const& sessionId,
-                                KeyedVector<String8, String8>& infoMap) const {
+DrmStatus DrmHal::queryKeyStatus(Vector<uint8_t> const& sessionId,
+                                 KeyedVector<String8, String8>& infoMap) const {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->queryKeyStatus(sessionId, infoMap);
     return mDrmHalHidl->queryKeyStatus(sessionId, infoMap);
 }
 
-status_t DrmHal::getProvisionRequest(String8 const& certType, String8 const& certAuthority,
-                                     Vector<uint8_t>& request, String8& defaultUrl) {
+DrmStatus DrmHal::getProvisionRequest(String8 const& certType, String8 const& certAuthority,
+                                      Vector<uint8_t>& request, String8& defaultUrl) {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->getProvisionRequest(certType, certAuthority, request, defaultUrl);
     return mDrmHalHidl->getProvisionRequest(certType, certAuthority, request, defaultUrl);
 }
 
-status_t DrmHal::provideProvisionResponse(Vector<uint8_t> const& response,
-                                          Vector<uint8_t>& certificate,
-                                          Vector<uint8_t>& wrappedKey) {
+DrmStatus DrmHal::provideProvisionResponse(Vector<uint8_t> const& response,
+                                           Vector<uint8_t>& certificate,
+                                           Vector<uint8_t>& wrappedKey) {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->provideProvisionResponse(response, certificate, wrappedKey);
     return mDrmHalHidl->provideProvisionResponse(response, certificate, wrappedKey);
 }
 
-status_t DrmHal::getSecureStops(List<Vector<uint8_t>>& secureStops) {
+DrmStatus DrmHal::getSecureStops(List<Vector<uint8_t>>& secureStops) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->getSecureStops(secureStops);
     return mDrmHalHidl->getSecureStops(secureStops);
 }
 
-status_t DrmHal::getSecureStopIds(List<Vector<uint8_t>>& secureStopIds) {
+DrmStatus DrmHal::getSecureStopIds(List<Vector<uint8_t>>& secureStopIds) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->getSecureStopIds(secureStopIds);
     return mDrmHalHidl->getSecureStopIds(secureStopIds);
 }
 
-status_t DrmHal::getSecureStop(Vector<uint8_t> const& ssid, Vector<uint8_t>& secureStop) {
+DrmStatus DrmHal::getSecureStop(Vector<uint8_t> const& ssid, Vector<uint8_t>& secureStop) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->getSecureStop(ssid, secureStop);
     return mDrmHalHidl->getSecureStop(ssid, secureStop);
 }
 
-status_t DrmHal::releaseSecureStops(Vector<uint8_t> const& ssRelease) {
+DrmStatus DrmHal::releaseSecureStops(Vector<uint8_t> const& ssRelease) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->releaseSecureStops(ssRelease);
     return mDrmHalHidl->releaseSecureStops(ssRelease);
 }
 
-status_t DrmHal::removeSecureStop(Vector<uint8_t> const& ssid) {
+DrmStatus DrmHal::removeSecureStop(Vector<uint8_t> const& ssid) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->removeSecureStop(ssid);
     return mDrmHalHidl->removeSecureStop(ssid);
 }
 
-status_t DrmHal::removeAllSecureStops() {
+DrmStatus DrmHal::removeAllSecureStops() {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->removeAllSecureStops();
     return mDrmHalHidl->removeAllSecureStops();
 }
 
-status_t DrmHal::getHdcpLevels(DrmPlugin::HdcpLevel* connectedLevel,
-                               DrmPlugin::HdcpLevel* maxLevel) const {
+DrmStatus DrmHal::getHdcpLevels(DrmPlugin::HdcpLevel* connectedLevel,
+                                DrmPlugin::HdcpLevel* maxLevel) const {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->getHdcpLevels(connectedLevel, maxLevel);
     return mDrmHalHidl->getHdcpLevels(connectedLevel, maxLevel);
 }
 
-status_t DrmHal::getNumberOfSessions(uint32_t* currentSessions, uint32_t* maxSessions) const {
+DrmStatus DrmHal::getNumberOfSessions(uint32_t* currentSessions, uint32_t* maxSessions) const {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->getNumberOfSessions(currentSessions, maxSessions);
     return mDrmHalHidl->getNumberOfSessions(currentSessions, maxSessions);
 }
 
-status_t DrmHal::getSecurityLevel(Vector<uint8_t> const& sessionId,
-                                  DrmPlugin::SecurityLevel* level) const {
+DrmStatus DrmHal::getSecurityLevel(Vector<uint8_t> const& sessionId,
+                                   DrmPlugin::SecurityLevel* level) const {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->getSecurityLevel(sessionId, level);
     return mDrmHalHidl->getSecurityLevel(sessionId, level);
 }
 
-status_t DrmHal::getOfflineLicenseKeySetIds(List<Vector<uint8_t>>& keySetIds) const {
+DrmStatus DrmHal::getOfflineLicenseKeySetIds(List<Vector<uint8_t>>& keySetIds) const {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->getOfflineLicenseKeySetIds(keySetIds);
     return mDrmHalHidl->getOfflineLicenseKeySetIds(keySetIds);
 }
 
-status_t DrmHal::removeOfflineLicense(Vector<uint8_t> const& keySetId) {
+DrmStatus DrmHal::removeOfflineLicense(Vector<uint8_t> const& keySetId) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->removeOfflineLicense(keySetId);
     return mDrmHalHidl->removeOfflineLicense(keySetId);
 }
 
-status_t DrmHal::getOfflineLicenseState(Vector<uint8_t> const& keySetId,
-                                        DrmPlugin::OfflineLicenseState* licenseState) const {
+DrmStatus DrmHal::getOfflineLicenseState(Vector<uint8_t> const& keySetId,
+                                         DrmPlugin::OfflineLicenseState* licenseState) const {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->getOfflineLicenseState(keySetId, licenseState);
     return mDrmHalHidl->getOfflineLicenseState(keySetId, licenseState);
 }
 
-status_t DrmHal::getPropertyString(String8 const& name, String8& value) const {
+DrmStatus DrmHal::getPropertyString(String8 const& name, String8& value) const {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->getPropertyString(name, value);
     return mDrmHalHidl->getPropertyString(name, value);
 }
 
-status_t DrmHal::getPropertyByteArray(String8 const& name, Vector<uint8_t>& value) const {
+DrmStatus DrmHal::getPropertyByteArray(String8 const& name, Vector<uint8_t>& value) const {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->getPropertyByteArray(name, value);
     return mDrmHalHidl->getPropertyByteArray(name, value);
 }
 
-status_t DrmHal::setPropertyString(String8 const& name, String8 const& value) const {
+DrmStatus DrmHal::setPropertyString(String8 const& name, String8 const& value) const {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->setPropertyString(name, value);
     return mDrmHalHidl->setPropertyString(name, value);
 }
 
-status_t DrmHal::setPropertyByteArray(String8 const& name, Vector<uint8_t> const& value) const {
+DrmStatus DrmHal::setPropertyByteArray(String8 const& name, Vector<uint8_t> const& value) const {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->setPropertyByteArray(name, value);
     return mDrmHalHidl->setPropertyByteArray(name, value);
 }
 
-status_t DrmHal::getMetrics(const sp<IDrmMetricsConsumer>& consumer) {
+DrmStatus DrmHal::getMetrics(const sp<IDrmMetricsConsumer>& consumer) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->getMetrics(consumer);
     return mDrmHalHidl->getMetrics(consumer);
 }
 
-status_t DrmHal::setCipherAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm) {
+DrmStatus DrmHal::setCipherAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm) {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->setCipherAlgorithm(sessionId, algorithm);
     return mDrmHalHidl->setCipherAlgorithm(sessionId, algorithm);
 }
 
-status_t DrmHal::setMacAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm) {
+DrmStatus DrmHal::setMacAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->setMacAlgorithm(sessionId, algorithm);
     return mDrmHalHidl->setMacAlgorithm(sessionId, algorithm);
 }
 
-status_t DrmHal::encrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                         Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
-                         Vector<uint8_t>& output) {
+DrmStatus DrmHal::encrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                          Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
+                          Vector<uint8_t>& output) {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->encrypt(sessionId, keyId, input, iv, output);
     return mDrmHalHidl->encrypt(sessionId, keyId, input, iv, output);
 }
 
-status_t DrmHal::decrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                         Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
-                         Vector<uint8_t>& output) {
+DrmStatus DrmHal::decrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                          Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
+                          Vector<uint8_t>& output) {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->decrypt(sessionId, keyId, input, iv, output);
     return mDrmHalHidl->decrypt(sessionId, keyId, input, iv, output);
 }
 
-status_t DrmHal::sign(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                      Vector<uint8_t> const& message, Vector<uint8_t>& signature) {
+DrmStatus DrmHal::sign(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                       Vector<uint8_t> const& message, Vector<uint8_t>& signature) {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->sign(sessionId, keyId, message, signature);
     return mDrmHalHidl->sign(sessionId, keyId, message, signature);
 }
 
-status_t DrmHal::verify(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                        Vector<uint8_t> const& message, Vector<uint8_t> const& signature,
-                        bool& match) {
+DrmStatus DrmHal::verify(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                         Vector<uint8_t> const& message, Vector<uint8_t> const& signature,
+                         bool& match) {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->verify(sessionId, keyId, message, signature, match);
     return mDrmHalHidl->verify(sessionId, keyId, message, signature, match);
 }
 
-status_t DrmHal::signRSA(Vector<uint8_t> const& sessionId, String8 const& algorithm,
-                         Vector<uint8_t> const& message, Vector<uint8_t> const& wrappedKey,
-                         Vector<uint8_t>& signature) {
+DrmStatus DrmHal::signRSA(Vector<uint8_t> const& sessionId, String8 const& algorithm,
+                          Vector<uint8_t> const& message, Vector<uint8_t> const& wrappedKey,
+                          Vector<uint8_t>& signature) {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->signRSA(sessionId, algorithm, message, wrappedKey, signature);
     return mDrmHalHidl->signRSA(sessionId, algorithm, message, wrappedKey, signature);
 }
 
-status_t DrmHal::setListener(const sp<IDrmClient>& listener) {
+DrmStatus DrmHal::setListener(const sp<IDrmClient>& listener) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->setListener(listener);
     return mDrmHalHidl->setListener(listener);
 }
 
-status_t DrmHal::requiresSecureDecoder(const char* mime, bool* required) const {
+DrmStatus DrmHal::requiresSecureDecoder(const char* mime, bool* required) const {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->requiresSecureDecoder(mime, required);
     return mDrmHalHidl->requiresSecureDecoder(mime, required);
 }
 
-status_t DrmHal::requiresSecureDecoder(const char* mime, DrmPlugin::SecurityLevel securityLevel,
-                                       bool* required) const {
+DrmStatus DrmHal::requiresSecureDecoder(const char* mime, DrmPlugin::SecurityLevel securityLevel,
+                                        bool* required) const {
     if (mDrmHalAidl->initCheck() == OK)
         return mDrmHalAidl->requiresSecureDecoder(mime, securityLevel, required);
     return mDrmHalHidl->requiresSecureDecoder(mime, securityLevel, required);
 }
 
-status_t DrmHal::setPlaybackId(Vector<uint8_t> const& sessionId, const char* playbackId) {
+DrmStatus DrmHal::setPlaybackId(Vector<uint8_t> const& sessionId, const char* playbackId) {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->setPlaybackId(sessionId, playbackId);
     return mDrmHalHidl->setPlaybackId(sessionId, playbackId);
 }
 
-status_t DrmHal::getLogMessages(Vector<drm::V1_4::LogMessage>& logs) const {
+DrmStatus DrmHal::getLogMessages(Vector<drm::V1_4::LogMessage>& logs) const {
     if (mDrmHalAidl->initCheck() == OK) return mDrmHalAidl->getLogMessages(logs);
     return mDrmHalHidl->getLogMessages(logs);
 }
 
-status_t DrmHal::getSupportedSchemes(std::vector<uint8_t> &schemes) const {
+DrmStatus DrmHal::getSupportedSchemes(std::vector<uint8_t>& schemes) const {
     status_t statusResult;
     statusResult = mDrmHalAidl->getSupportedSchemes(schemes);
     if (statusResult == OK) return statusResult;
diff --git a/drm/libmediadrm/DrmHalAidl.cpp b/drm/libmediadrm/DrmHalAidl.cpp
index bdd83e9..c369529 100644
--- a/drm/libmediadrm/DrmHalAidl.cpp
+++ b/drm/libmediadrm/DrmHalAidl.cpp
@@ -29,9 +29,9 @@
 #include <media/stagefright/foundation/hexdump.h>
 #include <mediadrm/DrmHalAidl.h>
 #include <mediadrm/DrmSessionManager.h>
+#include <mediadrm/DrmStatus.h>
 #include <mediadrm/DrmUtils.h>
 
-using ::android::DrmUtils::statusAidlToStatusT;
 using ::aidl::android::hardware::drm::CryptoSchemes;
 using ::aidl::android::hardware::drm::DrmMetricNamedValue;
 using ::aidl::android::hardware::drm::DrmMetricValue;
@@ -55,6 +55,7 @@
 using ::aidl::android::hardware::drm::Status;
 using ::aidl::android::hardware::drm::SupportedContentType;
 using ::aidl::android::hardware::drm::Uuid;
+using ::android::DrmUtils::statusAidlToDrmStatus;
 using DrmMetricGroupAidl = ::aidl::android::hardware::drm::DrmMetricGroup;
 using DrmMetricGroupHidl = ::android::hardware::drm::V1_1::DrmMetricGroup;
 using DrmMetricAidl = ::aidl::android::hardware::drm::DrmMetric;
@@ -396,19 +397,19 @@
       mFactories(DrmUtils::makeDrmFactoriesAidl()),
       mInitCheck((mFactories.size() == 0) ? ERROR_UNSUPPORTED : NO_INIT) {}
 
-status_t DrmHalAidl::initCheck() const {
-    return mInitCheck;
+DrmStatus DrmHalAidl::initCheck() const {
+    return DrmStatus(mInitCheck);
 }
 
 DrmHalAidl::~DrmHalAidl() {}
 
-status_t DrmHalAidl::setListener(const sp<IDrmClient>& listener) {
+DrmStatus DrmHalAidl::setListener(const sp<IDrmClient>& listener) {
     mListener->setListener(listener);
-    return NO_ERROR;
+    return DrmStatus(NO_ERROR);
 }
 
-status_t DrmHalAidl::isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
-                                             DrmPlugin::SecurityLevel level, bool* isSupported) {
+DrmStatus DrmHalAidl::isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
+                                              DrmPlugin::SecurityLevel level, bool* isSupported) {
     Mutex::Autolock autoLock(mLock);
     *isSupported = false;
     Uuid uuidAidl = DrmUtils::toAidlUuid(uuid);
@@ -438,9 +439,9 @@
                 // isCryptoSchemeSupported(uuid, mimeType)
                 *isSupported = contentTypes.count(mimeTypeStr);
             }
-            return OK;
+            return DrmStatus(OK);
         } else if (mimeType == "") {
-            return BAD_VALUE;
+            return DrmStatus(BAD_VALUE);
         }
 
         auto ct = contentTypes[mimeTypeStr];
@@ -452,10 +453,10 @@
         break;
     }
 
-    return OK;
+    return DrmStatus(OK);
 }
 
-status_t DrmHalAidl::createPlugin(const uint8_t uuid[16], const String8& appPackageName) {
+DrmStatus DrmHalAidl::createPlugin(const uint8_t uuid[16], const String8& appPackageName) {
     Mutex::Autolock autoLock(mLock);
 
     Uuid uuidAidl = DrmUtils::toAidlUuid(uuid);
@@ -497,10 +498,10 @@
         }
     }
 
-    return mInitCheck;
+    return DrmStatus(mInitCheck);
 }
 
-status_t DrmHalAidl::openSession(DrmPlugin::SecurityLevel level, Vector<uint8_t>& sessionId) {
+DrmStatus DrmHalAidl::openSession(DrmPlugin::SecurityLevel level, Vector<uint8_t>& sessionId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -510,14 +511,14 @@
         return ERROR_DRM_CANNOT_HANDLE;
     }
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
     bool retry = true;
     do {
         std::vector<uint8_t> aSessionId;
 
         ::ndk::ScopedAStatus status = mPlugin->openSession(aSecurityLevel, &aSessionId);
         if (status.isOk()) sessionId = toVector(aSessionId);
-        err = statusAidlToStatusT(status);
+        err = statusAidlToDrmStatus(status);
 
         if (err == ERROR_DRM_RESOURCE_BUSY && retry) {
             mLock.unlock();
@@ -545,13 +546,13 @@
     return err;
 }
 
-status_t DrmHalAidl::closeSession(Vector<uint8_t> const& sessionId) {
+DrmStatus DrmHalAidl::closeSession(Vector<uint8_t> const& sessionId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     std::vector<uint8_t> sessionIdAidl = toStdVec(sessionId);
     ::ndk::ScopedAStatus status = mPlugin->closeSession(sessionIdAidl);
-    status_t response = statusAidlToStatusT(status);
+    DrmStatus response = statusAidlToDrmStatus(status);
     if (status.isOk()) {
         DrmSessionManager::Instance()->removeSession(sessionId);
         for (auto i = mOpenSessions.begin(); i != mOpenSessions.end(); i++) {
@@ -568,12 +569,12 @@
     return response;
 }
 
-status_t DrmHalAidl::getKeyRequest(Vector<uint8_t> const& sessionId,
-                                   Vector<uint8_t> const& initData, String8 const& mimeType,
-                                   DrmPlugin::KeyType keyType,
-                                   KeyedVector<String8, String8> const& optionalParameters,
-                                   Vector<uint8_t>& request, String8& defaultUrl,
-                                   DrmPlugin::KeyRequestType* keyRequestType) {
+DrmStatus DrmHalAidl::getKeyRequest(Vector<uint8_t> const& sessionId,
+                                    Vector<uint8_t> const& initData, String8 const& mimeType,
+                                    DrmPlugin::KeyType keyType,
+                                    KeyedVector<String8, String8> const& optionalParameters,
+                                    Vector<uint8_t>& request, String8& defaultUrl,
+                                    DrmPlugin::KeyRequestType* keyRequestType) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
     EventTimer<status_t> keyRequestTimer(&mMetrics.mGetKeyRequestTimeUs);
@@ -592,7 +593,7 @@
         return BAD_VALUE;
     }
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     std::vector<uint8_t> sessionIdAidl = toStdVec(sessionId);
     std::vector<uint8_t> initDataAidl = toStdVec(initData);
@@ -607,21 +608,21 @@
         *keyRequestType = toKeyRequestType(keyRequest.requestType);
     }
 
-    err = statusAidlToStatusT(status);
+    err = statusAidlToDrmStatus(status);
     keyRequestTimer.SetAttribute(err);
     return err;
 }
 
-status_t DrmHalAidl::provideKeyResponse(Vector<uint8_t> const& sessionId,
-                                        Vector<uint8_t> const& response,
-                                        Vector<uint8_t>& keySetId) {
+DrmStatus DrmHalAidl::provideKeyResponse(Vector<uint8_t> const& sessionId,
+                                         Vector<uint8_t> const& response,
+                                         Vector<uint8_t>& keySetId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
     EventTimer<status_t> keyResponseTimer(&mMetrics.mProvideKeyResponseTimeUs);
 
     DrmSessionManager::Instance()->useSession(sessionId);
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     std::vector<uint8_t> sessionIdAidl = toStdVec(sessionId);
     std::vector<uint8_t> responseAidl = toStdVec(response);
@@ -630,21 +631,21 @@
             mPlugin->provideKeyResponse(sessionIdAidl, responseAidl, &keySetIdsAidl);
 
     if (status.isOk()) keySetId = toVector(keySetIdsAidl.keySetId);
-    err = statusAidlToStatusT(status);
+    err = statusAidlToDrmStatus(status);
     keyResponseTimer.SetAttribute(err);
     return err;
 }
 
-status_t DrmHalAidl::removeKeys(Vector<uint8_t> const& keySetId) {
+DrmStatus DrmHalAidl::removeKeys(Vector<uint8_t> const& keySetId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     ::ndk::ScopedAStatus status = mPlugin->removeKeys(toStdVec(keySetId));
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::restoreKeys(Vector<uint8_t> const& sessionId,
-                                 Vector<uint8_t> const& keySetId) {
+DrmStatus DrmHalAidl::restoreKeys(Vector<uint8_t> const& sessionId,
+                                  Vector<uint8_t> const& keySetId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -653,11 +654,11 @@
     KeySetId keySetIdsAidl;
     keySetIdsAidl.keySetId = toStdVec(keySetId);
     ::ndk::ScopedAStatus status = mPlugin->restoreKeys(toStdVec(sessionId), keySetIdsAidl);
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::queryKeyStatus(Vector<uint8_t> const& sessionId,
-                                    KeyedVector<String8, String8>& infoMap) const {
+DrmStatus DrmHalAidl::queryKeyStatus(Vector<uint8_t> const& sessionId,
+                                     KeyedVector<String8, String8>& infoMap) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -668,15 +669,15 @@
 
     infoMap = toKeyedVector(infoMapAidl);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getProvisionRequest(String8 const& certType, String8 const& certAuthority,
-                                         Vector<uint8_t>& request, String8& defaultUrl) {
+DrmStatus DrmHalAidl::getProvisionRequest(String8 const& certType, String8 const& certAuthority,
+                                          Vector<uint8_t>& request, String8& defaultUrl) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     ProvisionRequest requestAidl;
     ::ndk::ScopedAStatus status = mPlugin->getProvisionRequest(
@@ -685,29 +686,29 @@
     request = toVector(requestAidl.request);
     defaultUrl = toString8(requestAidl.defaultUrl);
 
-    err = statusAidlToStatusT(status);
+    err = statusAidlToDrmStatus(status);
     mMetrics.mGetProvisionRequestCounter.Increment(err);
     return err;
 }
 
-status_t DrmHalAidl::provideProvisionResponse(Vector<uint8_t> const& response,
-                                              Vector<uint8_t>& certificate,
-                                              Vector<uint8_t>& wrappedKey) {
+DrmStatus DrmHalAidl::provideProvisionResponse(Vector<uint8_t> const& response,
+                                               Vector<uint8_t>& certificate,
+                                               Vector<uint8_t>& wrappedKey) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
     ProvideProvisionResponseResult result;
     ::ndk::ScopedAStatus status = mPlugin->provideProvisionResponse(toStdVec(response), &result);
 
     certificate = toVector(result.certificate);
     wrappedKey = toVector(result.wrappedKey);
-    err = statusAidlToStatusT(status);
+    err = statusAidlToDrmStatus(status);
     mMetrics.mProvideProvisionResponseCounter.Increment(err);
     return err;
 }
 
-status_t DrmHalAidl::getSecureStops(List<Vector<uint8_t>>& secureStops) {
+DrmStatus DrmHalAidl::getSecureStops(List<Vector<uint8_t>>& secureStops) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -716,10 +717,10 @@
 
     secureStops = toSecureStops(result);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getSecureStopIds(List<Vector<uint8_t>>& secureStopIds) {
+DrmStatus DrmHalAidl::getSecureStopIds(List<Vector<uint8_t>>& secureStopIds) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -728,10 +729,10 @@
 
     secureStopIds = toSecureStopIds(result);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getSecureStop(Vector<uint8_t> const& ssid, Vector<uint8_t>& secureStop) {
+DrmStatus DrmHalAidl::getSecureStop(Vector<uint8_t> const& ssid, Vector<uint8_t>& secureStop) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -743,10 +744,10 @@
 
     secureStop = toVector(result.opaqueData);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::releaseSecureStops(Vector<uint8_t> const& ssRelease) {
+DrmStatus DrmHalAidl::releaseSecureStops(Vector<uint8_t> const& ssRelease) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -754,10 +755,10 @@
     ssId.opaqueData = toStdVec(ssRelease);
     ::ndk::ScopedAStatus status = mPlugin->releaseSecureStops(ssId);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::removeSecureStop(Vector<uint8_t> const& ssid) {
+DrmStatus DrmHalAidl::removeSecureStop(Vector<uint8_t> const& ssid) {
     Mutex::Autolock autoLock(mLock);
 
     INIT_CHECK();
@@ -765,19 +766,19 @@
     SecureStopId ssidAidl;
     ssidAidl.secureStopId = toStdVec(ssid);
     ::ndk::ScopedAStatus status = mPlugin->removeSecureStop(ssidAidl);
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::removeAllSecureStops() {
+DrmStatus DrmHalAidl::removeAllSecureStops() {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     ::ndk::ScopedAStatus status = mPlugin->releaseAllSecureStops();
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getHdcpLevels(DrmPlugin::HdcpLevel* connected,
-                                   DrmPlugin::HdcpLevel* max) const {
+DrmStatus DrmHalAidl::getHdcpLevels(DrmPlugin::HdcpLevel* connected,
+                                    DrmPlugin::HdcpLevel* max) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -794,10 +795,10 @@
     *connected = toHdcpLevel(lvlsAidl.connectedLevel);
     *max = toHdcpLevel(lvlsAidl.maxLevel);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getNumberOfSessions(uint32_t* open, uint32_t* max) const {
+DrmStatus DrmHalAidl::getNumberOfSessions(uint32_t* open, uint32_t* max) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -814,11 +815,11 @@
     *open = result.currentSessions;
     *max = result.maxSessions;
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getSecurityLevel(Vector<uint8_t> const& sessionId,
-                                      DrmPlugin::SecurityLevel* level) const {
+DrmStatus DrmHalAidl::getSecurityLevel(Vector<uint8_t> const& sessionId,
+                                       DrmPlugin::SecurityLevel* level) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -833,10 +834,10 @@
 
     *level = toSecurityLevel(result);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getOfflineLicenseKeySetIds(List<Vector<uint8_t>>& keySetIds) const {
+DrmStatus DrmHalAidl::getOfflineLicenseKeySetIds(List<Vector<uint8_t>>& keySetIds) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -845,21 +846,21 @@
 
     keySetIds = toKeySetIds(result);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::removeOfflineLicense(Vector<uint8_t> const& keySetId) {
+DrmStatus DrmHalAidl::removeOfflineLicense(Vector<uint8_t> const& keySetId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     KeySetId keySetIdAidl;
     keySetIdAidl.keySetId = toStdVec(keySetId);
     ::ndk::ScopedAStatus status = mPlugin->removeOfflineLicense(keySetIdAidl);
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getOfflineLicenseState(Vector<uint8_t> const& keySetId,
-                                            DrmPlugin::OfflineLicenseState* licenseState) const {
+DrmStatus DrmHalAidl::getOfflineLicenseState(Vector<uint8_t> const& keySetId,
+                                             DrmPlugin::OfflineLicenseState* licenseState) const {
     Mutex::Autolock autoLock(mLock);
 
     INIT_CHECK();
@@ -873,15 +874,15 @@
 
     *licenseState = toOfflineLicenseState(result);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getPropertyString(String8 const& name, String8& value) const {
+DrmStatus DrmHalAidl::getPropertyString(String8 const& name, String8& value) const {
     Mutex::Autolock autoLock(mLock);
-    return getPropertyStringInternal(name, value);
+    return DrmStatus(getPropertyStringInternal(name, value));
 }
 
-status_t DrmHalAidl::getPropertyStringInternal(String8 const& name, String8& value) const {
+DrmStatus DrmHalAidl::getPropertyStringInternal(String8 const& name, String8& value) const {
     // This function is internal to the class and should only be called while
     // mLock is already held.
     INIT_CHECK();
@@ -891,52 +892,53 @@
 
     value = toString8(result);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getPropertyByteArray(String8 const& name, Vector<uint8_t>& value) const {
+DrmStatus DrmHalAidl::getPropertyByteArray(String8 const& name, Vector<uint8_t>& value) const {
     Mutex::Autolock autoLock(mLock);
-    return getPropertyByteArrayInternal(name, value);
+    return DrmStatus(getPropertyByteArrayInternal(name, value));
 }
 
-status_t DrmHalAidl::getPropertyByteArrayInternal(String8 const& name,
-                                                  Vector<uint8_t>& value) const {
+DrmStatus DrmHalAidl::getPropertyByteArrayInternal(String8 const& name,
+                                                   Vector<uint8_t>& value) const {
     // This function is internal to the class and should only be called while
     // mLock is already held.
     INIT_CHECK();
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     std::vector<uint8_t> result;
     ::ndk::ScopedAStatus status = mPlugin->getPropertyByteArray(toStdString(name), &result);
 
     value = toVector(result);
-    err = statusAidlToStatusT(status);
+    err = statusAidlToDrmStatus(status);
     if (name == kPropertyDeviceUniqueId) {
         mMetrics.mGetDeviceUniqueIdCounter.Increment(err);
     }
     return err;
 }
 
-status_t DrmHalAidl::setPropertyString(String8 const& name, String8 const& value) const {
+DrmStatus DrmHalAidl::setPropertyString(String8 const& name, String8 const& value) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     ::ndk::ScopedAStatus status = mPlugin->setPropertyString(toStdString(name), toStdString(value));
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::setPropertyByteArray(String8 const& name, Vector<uint8_t> const& value) const {
+DrmStatus DrmHalAidl::setPropertyByteArray(String8 const& name,
+                                           Vector<uint8_t> const& value) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     ::ndk::ScopedAStatus status = mPlugin->setPropertyByteArray(toStdString(name), toStdVec(value));
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getMetrics(const sp<IDrmMetricsConsumer>& consumer) {
+DrmStatus DrmHalAidl::getMetrics(const sp<IDrmMetricsConsumer>& consumer) {
     if (consumer == nullptr) {
-        return UNEXPECTED_NULL;
+        return DrmStatus(UNEXPECTED_NULL);
     }
     consumer->consumeFrameworkMetrics(mMetrics);
 
@@ -957,7 +959,7 @@
     vendor += description;
 
     hidl_vec<DrmMetricGroupHidl> pluginMetrics;
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     std::vector<DrmMetricGroupAidl> result;
     ::ndk::ScopedAStatus status = mPlugin->getMetrics(&result);
@@ -967,13 +969,13 @@
         consumer->consumeHidlMetrics(vendor, pluginMetrics);
     }
 
-    err = statusAidlToStatusT(status);
+    err = statusAidlToDrmStatus(status);
 
     return err;
 }
 
-status_t DrmHalAidl::setCipherAlgorithm(Vector<uint8_t> const& sessionId,
-                                        String8 const& algorithm) {
+DrmStatus DrmHalAidl::setCipherAlgorithm(Vector<uint8_t> const& sessionId,
+                                         String8 const& algorithm) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -981,10 +983,10 @@
 
     ::ndk::ScopedAStatus status =
             mPlugin->setCipherAlgorithm(toStdVec(sessionId), toStdString(algorithm));
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::setMacAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm) {
+DrmStatus DrmHalAidl::setMacAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -992,12 +994,12 @@
 
     ::ndk::ScopedAStatus status =
             mPlugin->setMacAlgorithm(toStdVec(sessionId), toStdString(algorithm));
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::encrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                             Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
-                             Vector<uint8_t>& output) {
+DrmStatus DrmHalAidl::encrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                              Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
+                              Vector<uint8_t>& output) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -1009,12 +1011,12 @@
 
     output = toVector(result);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::decrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                             Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
-                             Vector<uint8_t>& output) {
+DrmStatus DrmHalAidl::decrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                              Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
+                              Vector<uint8_t>& output) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -1026,11 +1028,11 @@
 
     output = toVector(result);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::sign(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                          Vector<uint8_t> const& message, Vector<uint8_t>& signature) {
+DrmStatus DrmHalAidl::sign(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                           Vector<uint8_t> const& message, Vector<uint8_t>& signature) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -1042,12 +1044,12 @@
 
     signature = toVector(result);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::verify(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                            Vector<uint8_t> const& message, Vector<uint8_t> const& signature,
-                            bool& match) {
+DrmStatus DrmHalAidl::verify(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                             Vector<uint8_t> const& message, Vector<uint8_t> const& signature,
+                             bool& match) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -1056,12 +1058,12 @@
     ::ndk::ScopedAStatus status = mPlugin->verify(toStdVec(sessionId), toStdVec(keyId),
                                                   toStdVec(message), toStdVec(signature), &match);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::signRSA(Vector<uint8_t> const& sessionId, String8 const& algorithm,
-                             Vector<uint8_t> const& message, Vector<uint8_t> const& wrappedKey,
-                             Vector<uint8_t>& signature) {
+DrmStatus DrmHalAidl::signRSA(Vector<uint8_t> const& sessionId, String8 const& algorithm,
+                              Vector<uint8_t> const& message, Vector<uint8_t> const& wrappedKey,
+                              Vector<uint8_t>& signature) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -1074,10 +1076,10 @@
 
     signature = toVector(result);
 
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::requiresSecureDecoder(const char* mime, bool* required) const {
+DrmStatus DrmHalAidl::requiresSecureDecoder(const char* mime, bool* required) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -1086,14 +1088,15 @@
         mPlugin->requiresSecureDecoder(mimeAidl, SecurityLevel::DEFAULT, required);
     if (!status.isOk()) {
         DrmUtils::LOG2BE("requiresSecureDecoder txn failed: %d", status.getServiceSpecificError());
-        return DEAD_OBJECT;
+        return DrmStatus(DEAD_OBJECT);
     }
 
-    return OK;
+    return DrmStatus(OK);
 }
 
-status_t DrmHalAidl::requiresSecureDecoder(const char* mime, DrmPlugin::SecurityLevel securityLevel,
-                                           bool* required) const {
+DrmStatus DrmHalAidl::requiresSecureDecoder(const char* mime,
+                                            DrmPlugin::SecurityLevel securityLevel,
+                                            bool* required) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -1101,7 +1104,7 @@
     std::string mimeAidl(mime);
     ::ndk::ScopedAStatus status = mPlugin->requiresSecureDecoder(mimeAidl, aLevel, required);
 
-    status_t err = statusAidlToStatusT(status);
+    DrmStatus err = statusAidlToDrmStatus(status);
     if (!status.isOk()) {
         DrmUtils::LOG2BE("requiresSecureDecoder txn failed: %d", status.getServiceSpecificError());
     }
@@ -1109,17 +1112,17 @@
     return err;
 }
 
-status_t DrmHalAidl::setPlaybackId(Vector<uint8_t> const& sessionId, const char* playbackId) {
+DrmStatus DrmHalAidl::setPlaybackId(Vector<uint8_t> const& sessionId, const char* playbackId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
     std::string playbackIdAidl(playbackId);
     ::ndk::ScopedAStatus status = mPlugin->setPlaybackId(toStdVec(sessionId), playbackIdAidl);
-    return statusAidlToStatusT(status);
+    return statusAidlToDrmStatus(status);
 }
 
-status_t DrmHalAidl::getLogMessages(Vector<drm::V1_4::LogMessage>& logs) const {
+DrmStatus DrmHalAidl::getLogMessages(Vector<drm::V1_4::LogMessage>& logs) const {
     Mutex::Autolock autoLock(mLock);
-    return DrmUtils::GetLogMessagesAidl<IDrmPluginAidl>(mPlugin, logs);
+    return DrmStatus(DrmUtils::GetLogMessagesAidl<IDrmPluginAidl>(mPlugin, logs));
 }
 
 void DrmHalAidl::closeOpenSessions() {
@@ -1189,7 +1192,7 @@
     return serializedMetrics;
 }
 
-status_t DrmHalAidl::getSupportedSchemes(std::vector<uint8_t> &schemes) const {
+DrmStatus DrmHalAidl::getSupportedSchemes(std::vector<uint8_t>& schemes) const {
     Mutex::Autolock autoLock(mLock);
 
     if (mFactories.empty()) return UNKNOWN_ERROR;
@@ -1205,7 +1208,7 @@
         }
     }
 
-    return OK;
+    return DrmStatus(OK);
 }
 
 void DrmHalAidl::cleanup() {
@@ -1225,9 +1228,9 @@
     mPlugin.reset();
 }
 
-status_t DrmHalAidl::destroyPlugin() {
+DrmStatus DrmHalAidl::destroyPlugin() {
     cleanup();
-    return OK;
+    return DrmStatus(OK);
 }
 
 ::ndk::ScopedAStatus DrmHalAidl::onEvent(EventTypeAidl eventTypeAidl,
diff --git a/drm/libmediadrm/DrmHalHidl.cpp b/drm/libmediadrm/DrmHalHidl.cpp
index 055f20a..2e0bfee 100644
--- a/drm/libmediadrm/DrmHalHidl.cpp
+++ b/drm/libmediadrm/DrmHalHidl.cpp
@@ -35,6 +35,7 @@
 #include <mediadrm/DrmHalHidl.h>
 #include <mediadrm/DrmSessionClientInterface.h>
 #include <mediadrm/DrmSessionManager.h>
+#include <mediadrm/DrmStatus.h>
 #include <mediadrm/DrmUtils.h>
 #include <mediadrm/IDrmMetricsConsumer.h>
 #include <utils/Log.h>
@@ -368,14 +369,14 @@
     return plugin;
 }
 
-status_t DrmHalHidl::initCheck() const {
-    return mInitCheck;
+DrmStatus DrmHalHidl::initCheck() const {
+    return DrmStatus(mInitCheck);
 }
 
-status_t DrmHalHidl::setListener(const sp<IDrmClient>& listener) {
+DrmStatus DrmHalHidl::setListener(const sp<IDrmClient>& listener) {
     Mutex::Autolock lock(mEventLock);
     mListener = listener;
-    return NO_ERROR;
+    return DrmStatus(NO_ERROR);
 }
 
 Return<void> DrmHalHidl::sendEvent(EventType hEventType, const hidl_vec<uint8_t>& sessionId,
@@ -502,10 +503,10 @@
     return Void();
 }
 
-status_t DrmHalHidl::matchMimeTypeAndSecurityLevel(const sp<IDrmFactory>& factory,
-                                                   const uint8_t uuid[16], const String8& mimeType,
-                                                   DrmPlugin::SecurityLevel level,
-                                                   bool* isSupported) {
+DrmStatus DrmHalHidl::matchMimeTypeAndSecurityLevel(const sp<IDrmFactory>& factory,
+                                                    const uint8_t uuid[16], const String8& mimeType,
+                                                    DrmPlugin::SecurityLevel level,
+                                                    bool* isSupported) {
     *isSupported = false;
 
     // handle default value cases
@@ -517,23 +518,23 @@
             // isCryptoSchemeSupported(uuid, mimeType)
             *isSupported = factory->isContentTypeSupported(mimeType.string());
         }
-        return OK;
+        return DrmStatus(OK);
     } else if (mimeType == "") {
-        return BAD_VALUE;
+        return DrmStatus(BAD_VALUE);
     }
 
     sp<drm::V1_2::IDrmFactory> factoryV1_2 = drm::V1_2::IDrmFactory::castFrom(factory);
     if (factoryV1_2 == NULL) {
-        return ERROR_UNSUPPORTED;
+        return DrmStatus(ERROR_UNSUPPORTED);
     } else {
         *isSupported = factoryV1_2->isCryptoSchemeSupported_1_2(uuid, mimeType.string(),
                                                                 toHidlSecurityLevel(level));
-        return OK;
+        return DrmStatus(OK);
     }
 }
 
-status_t DrmHalHidl::isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
-                                             DrmPlugin::SecurityLevel level, bool* isSupported) {
+DrmStatus DrmHalHidl::isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
+                                              DrmPlugin::SecurityLevel level, bool* isSupported) {
     Mutex::Autolock autoLock(mLock);
     *isSupported = false;
     for (ssize_t i = mFactories.size() - 1; i >= 0; i--) {
@@ -541,10 +542,10 @@
             return matchMimeTypeAndSecurityLevel(mFactories[i], uuid, mimeType, level, isSupported);
         }
     }
-    return OK;
+    return DrmStatus(OK);
 }
 
-status_t DrmHalHidl::createPlugin(const uint8_t uuid[16], const String8& appPackageName) {
+DrmStatus DrmHalHidl::createPlugin(const uint8_t uuid[16], const String8& appPackageName) {
     Mutex::Autolock autoLock(mLock);
 
     for (ssize_t i = mFactories.size() - 1; i >= 0; i--) {
@@ -581,15 +582,15 @@
         }
     }
 
-    return mInitCheck;
+    return DrmStatus(mInitCheck);
 }
 
-status_t DrmHalHidl::destroyPlugin() {
+DrmStatus DrmHalHidl::destroyPlugin() {
     cleanup();
-    return OK;
+    return DrmStatus(OK);
 }
 
-status_t DrmHalHidl::openSession(DrmPlugin::SecurityLevel level, Vector<uint8_t>& sessionId) {
+DrmStatus DrmHalHidl::openSession(DrmPlugin::SecurityLevel level, Vector<uint8_t>& sessionId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -604,7 +605,7 @@
         }
     }
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
     bool retry = true;
     do {
         hidl_vec<uint8_t> hSessionId;
@@ -657,7 +658,7 @@
     return err;
 }
 
-status_t DrmHalHidl::closeSession(Vector<uint8_t> const& sessionId) {
+DrmStatus DrmHalHidl::closeSession(Vector<uint8_t> const& sessionId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -672,13 +673,13 @@
                 }
             }
         }
-        status_t response = toStatusT(status);
+        DrmStatus response = toStatusT(status);
         mMetrics.SetSessionEnd(sessionId);
         mMetrics.mCloseSessionCounter.Increment(response);
         return response;
     }
     mMetrics.mCloseSessionCounter.Increment(DEAD_OBJECT);
-    return DEAD_OBJECT;
+    return DrmStatus(DEAD_OBJECT);
 }
 
 static DrmPlugin::KeyRequestType toKeyRequestType(KeyRequestType keyRequestType) {
@@ -712,12 +713,12 @@
     }
 }
 
-status_t DrmHalHidl::getKeyRequest(Vector<uint8_t> const& sessionId,
-                                   Vector<uint8_t> const& initData, String8 const& mimeType,
-                                   DrmPlugin::KeyType keyType,
-                                   KeyedVector<String8, String8> const& optionalParameters,
-                                   Vector<uint8_t>& request, String8& defaultUrl,
-                                   DrmPlugin::KeyRequestType* keyRequestType) {
+DrmStatus DrmHalHidl::getKeyRequest(Vector<uint8_t> const& sessionId,
+                                    Vector<uint8_t> const& initData, String8 const& mimeType,
+                                    DrmPlugin::KeyType keyType,
+                                    KeyedVector<String8, String8> const& optionalParameters,
+                                    Vector<uint8_t>& request, String8& defaultUrl,
+                                    DrmPlugin::KeyRequestType* keyRequestType) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
     EventTimer<status_t> keyRequestTimer(&mMetrics.mGetKeyRequestTimeUs);
@@ -738,7 +739,7 @@
 
     ::KeyedVector hOptionalParameters = toHidlKeyedVector(optionalParameters);
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
     Return<void> hResult;
 
     if (mPluginV1_2 != NULL) {
@@ -787,16 +788,16 @@
     return err;
 }
 
-status_t DrmHalHidl::provideKeyResponse(Vector<uint8_t> const& sessionId,
-                                        Vector<uint8_t> const& response,
-                                        Vector<uint8_t>& keySetId) {
+DrmStatus DrmHalHidl::provideKeyResponse(Vector<uint8_t> const& sessionId,
+                                         Vector<uint8_t> const& response,
+                                         Vector<uint8_t>& keySetId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
     EventTimer<status_t> keyResponseTimer(&mMetrics.mProvideKeyResponseTimeUs);
 
     DrmSessionManager::Instance()->useSession(sessionId);
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult =
             mPlugin->provideKeyResponse(toHidlVec(sessionId), toHidlVec(response),
@@ -811,27 +812,27 @@
     return err;
 }
 
-status_t DrmHalHidl::removeKeys(Vector<uint8_t> const& keySetId) {
+DrmStatus DrmHalHidl::removeKeys(Vector<uint8_t> const& keySetId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     Return<Status> status = mPlugin->removeKeys(toHidlVec(keySetId));
-    return status.isOk() ? toStatusT(status) : DEAD_OBJECT;
+    return status.isOk() ? DrmStatus(toStatusT(status)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::restoreKeys(Vector<uint8_t> const& sessionId,
-                                 Vector<uint8_t> const& keySetId) {
+DrmStatus DrmHalHidl::restoreKeys(Vector<uint8_t> const& sessionId,
+                                  Vector<uint8_t> const& keySetId) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     DrmSessionManager::Instance()->useSession(sessionId);
 
     Return<Status> status = mPlugin->restoreKeys(toHidlVec(sessionId), toHidlVec(keySetId));
-    return status.isOk() ? toStatusT(status) : DEAD_OBJECT;
+    return status.isOk() ? DrmStatus(toStatusT(status)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::queryKeyStatus(Vector<uint8_t> const& sessionId,
-                                    KeyedVector<String8, String8>& infoMap) const {
+DrmStatus DrmHalHidl::queryKeyStatus(Vector<uint8_t> const& sessionId,
+                                     KeyedVector<String8, String8>& infoMap) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -839,7 +840,7 @@
 
     ::KeyedVector hInfoMap;
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult = mPlugin->queryKeyStatus(
             toHidlVec(sessionId), [&](Status status, const hidl_vec<KeyValue>& map) {
@@ -849,15 +850,15 @@
                 err = toStatusT(status);
             });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? DrmStatus(err) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getProvisionRequest(String8 const& certType, String8 const& certAuthority,
-                                         Vector<uint8_t>& request, String8& defaultUrl) {
+DrmStatus DrmHalHidl::getProvisionRequest(String8 const& certType, String8 const& certAuthority,
+                                          Vector<uint8_t>& request, String8& defaultUrl) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
     Return<void> hResult;
 
     if (mPluginV1_2 != NULL) {
@@ -888,13 +889,13 @@
     return err;
 }
 
-status_t DrmHalHidl::provideProvisionResponse(Vector<uint8_t> const& response,
-                                              Vector<uint8_t>& certificate,
-                                              Vector<uint8_t>& wrappedKey) {
+DrmStatus DrmHalHidl::provideProvisionResponse(Vector<uint8_t> const& response,
+                                               Vector<uint8_t>& certificate,
+                                               Vector<uint8_t>& wrappedKey) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult = mPlugin->provideProvisionResponse(
             toHidlVec(response), [&](Status status, const hidl_vec<uint8_t>& hCertificate,
@@ -911,11 +912,11 @@
     return err;
 }
 
-status_t DrmHalHidl::getSecureStops(List<Vector<uint8_t>>& secureStops) {
+DrmStatus DrmHalHidl::getSecureStops(List<Vector<uint8_t>>& secureStops) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult =
             mPlugin->getSecureStops([&](Status status, const hidl_vec<SecureStop>& hSecureStops) {
@@ -925,10 +926,10 @@
                 err = toStatusT(status);
             });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getSecureStopIds(List<Vector<uint8_t>>& secureStopIds) {
+DrmStatus DrmHalHidl::getSecureStopIds(List<Vector<uint8_t>>& secureStopIds) {
     Mutex::Autolock autoLock(mLock);
 
     if (mInitCheck != OK) {
@@ -939,7 +940,7 @@
         return ERROR_DRM_CANNOT_HANDLE;
     }
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult = mPluginV1_1->getSecureStopIds(
             [&](Status status, const hidl_vec<SecureStopId>& hSecureStopIds) {
@@ -949,14 +950,14 @@
                 err = toStatusT(status);
             });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getSecureStop(Vector<uint8_t> const& ssid, Vector<uint8_t>& secureStop) {
+DrmStatus DrmHalHidl::getSecureStop(Vector<uint8_t> const& ssid, Vector<uint8_t>& secureStop) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult = mPlugin->getSecureStop(
             toHidlVec(ssid), [&](Status status, const SecureStop& hSecureStop) {
@@ -966,10 +967,10 @@
                 err = toStatusT(status);
             });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::releaseSecureStops(Vector<uint8_t> const& ssRelease) {
+DrmStatus DrmHalHidl::releaseSecureStops(Vector<uint8_t> const& ssRelease) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -981,10 +982,10 @@
     } else {
         status = mPlugin->releaseSecureStop(toHidlVec(ssRelease));
     }
-    return status.isOk() ? toStatusT(status) : DEAD_OBJECT;
+    return status.isOk() ? DrmStatus(toStatusT(status)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::removeSecureStop(Vector<uint8_t> const& ssid) {
+DrmStatus DrmHalHidl::removeSecureStop(Vector<uint8_t> const& ssid) {
     Mutex::Autolock autoLock(mLock);
 
     if (mInitCheck != OK) {
@@ -996,10 +997,10 @@
     }
 
     Return<Status> status = mPluginV1_1->removeSecureStop(toHidlVec(ssid));
-    return status.isOk() ? toStatusT(status) : DEAD_OBJECT;
+    return status.isOk() ? DrmStatus(toStatusT(status)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::removeAllSecureStops() {
+DrmStatus DrmHalHidl::removeAllSecureStops() {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -1009,18 +1010,18 @@
     } else {
         status = mPlugin->releaseAllSecureStops();
     }
-    return status.isOk() ? toStatusT(status) : DEAD_OBJECT;
+    return status.isOk() ? DrmStatus(toStatusT(status)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getHdcpLevels(DrmPlugin::HdcpLevel* connected,
-                                   DrmPlugin::HdcpLevel* max) const {
+DrmStatus DrmHalHidl::getHdcpLevels(DrmPlugin::HdcpLevel* connected,
+                                    DrmPlugin::HdcpLevel* max) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     if (connected == NULL || max == NULL) {
         return BAD_VALUE;
     }
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     *connected = DrmPlugin::kHdcpLevelUnknown;
     *max = DrmPlugin::kHdcpLevelUnknown;
@@ -1046,26 +1047,26 @@
                     err = toStatusT(status);
                 });
     } else {
-        return ERROR_DRM_CANNOT_HANDLE;
+        return DrmStatus(ERROR_DRM_CANNOT_HANDLE);
     }
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getNumberOfSessions(uint32_t* open, uint32_t* max) const {
+DrmStatus DrmHalHidl::getNumberOfSessions(uint32_t* open, uint32_t* max) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     if (open == NULL || max == NULL) {
         return BAD_VALUE;
     }
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     *open = 0;
     *max = 0;
 
     if (mPluginV1_1 == NULL) {
-        return ERROR_DRM_CANNOT_HANDLE;
+        return DrmStatus(ERROR_DRM_CANNOT_HANDLE);
     }
 
     Return<void> hResult =
@@ -1077,21 +1078,21 @@
                 err = toStatusT(status);
             });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getSecurityLevel(Vector<uint8_t> const& sessionId,
-                                      DrmPlugin::SecurityLevel* level) const {
+DrmStatus DrmHalHidl::getSecurityLevel(Vector<uint8_t> const& sessionId,
+                                       DrmPlugin::SecurityLevel* level) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     if (level == NULL) {
-        return BAD_VALUE;
+        return DrmStatus(BAD_VALUE);
     }
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     if (mPluginV1_1 == NULL) {
-        return ERROR_DRM_CANNOT_HANDLE;
+        return DrmStatus(ERROR_DRM_CANNOT_HANDLE);
     }
 
     *level = DrmPlugin::kSecurityLevelUnknown;
@@ -1104,21 +1105,21 @@
                                                              err = toStatusT(status);
                                                          });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getOfflineLicenseKeySetIds(List<Vector<uint8_t>>& keySetIds) const {
+DrmStatus DrmHalHidl::getOfflineLicenseKeySetIds(List<Vector<uint8_t>>& keySetIds) const {
     Mutex::Autolock autoLock(mLock);
 
     if (mInitCheck != OK) {
-        return mInitCheck;
+        return DrmStatus(mInitCheck);
     }
 
     if (mPluginV1_2 == NULL) {
-        return ERROR_UNSUPPORTED;
+        return DrmStatus(ERROR_UNSUPPORTED);
     }
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult = mPluginV1_2->getOfflineLicenseKeySetIds(
             [&](Status status, const hidl_vec<KeySetId>& hKeySetIds) {
@@ -1128,38 +1129,38 @@
                 err = toStatusT(status);
             });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::removeOfflineLicense(Vector<uint8_t> const& keySetId) {
+DrmStatus DrmHalHidl::removeOfflineLicense(Vector<uint8_t> const& keySetId) {
     Mutex::Autolock autoLock(mLock);
 
     if (mInitCheck != OK) {
-        return mInitCheck;
+        return DrmStatus(mInitCheck);
     }
 
     if (mPluginV1_2 == NULL) {
-        return ERROR_UNSUPPORTED;
+        return DrmStatus(ERROR_UNSUPPORTED);
     }
 
     Return<Status> status = mPluginV1_2->removeOfflineLicense(toHidlVec(keySetId));
-    return status.isOk() ? toStatusT(status) : DEAD_OBJECT;
+    return status.isOk() ? DrmStatus(toStatusT(status)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getOfflineLicenseState(Vector<uint8_t> const& keySetId,
-                                            DrmPlugin::OfflineLicenseState* licenseState) const {
+DrmStatus DrmHalHidl::getOfflineLicenseState(Vector<uint8_t> const& keySetId,
+                                             DrmPlugin::OfflineLicenseState* licenseState) const {
     Mutex::Autolock autoLock(mLock);
 
     if (mInitCheck != OK) {
-        return mInitCheck;
+        return DrmStatus(mInitCheck);
     }
 
     if (mPluginV1_2 == NULL) {
-        return ERROR_UNSUPPORTED;
+        return DrmStatus(ERROR_UNSUPPORTED);
     }
     *licenseState = DrmPlugin::kOfflineLicenseStateUnknown;
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult = mPluginV1_2->getOfflineLicenseState(
             toHidlVec(keySetId), [&](Status status, OfflineLicenseState hLicenseState) {
@@ -1169,20 +1170,20 @@
                 err = toStatusT(status);
             });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getPropertyString(String8 const& name, String8& value) const {
+DrmStatus DrmHalHidl::getPropertyString(String8 const& name, String8& value) const {
     Mutex::Autolock autoLock(mLock);
     return getPropertyStringInternal(name, value);
 }
 
-status_t DrmHalHidl::getPropertyStringInternal(String8 const& name, String8& value) const {
+DrmStatus DrmHalHidl::getPropertyStringInternal(String8 const& name, String8& value) const {
     // This function is internal to the class and should only be called while
     // mLock is already held.
     INIT_CHECK();
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult = mPlugin->getPropertyString(
             toHidlString(name), [&](Status status, const hidl_string& hValue) {
@@ -1192,21 +1193,21 @@
                 err = toStatusT(status);
             });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getPropertyByteArray(String8 const& name, Vector<uint8_t>& value) const {
+DrmStatus DrmHalHidl::getPropertyByteArray(String8 const& name, Vector<uint8_t>& value) const {
     Mutex::Autolock autoLock(mLock);
     return getPropertyByteArrayInternal(name, value);
 }
 
-status_t DrmHalHidl::getPropertyByteArrayInternal(String8 const& name,
-                                                  Vector<uint8_t>& value) const {
+DrmStatus DrmHalHidl::getPropertyByteArrayInternal(String8 const& name,
+                                                   Vector<uint8_t>& value) const {
     // This function is internal to the class and should only be called while
     // mLock is already held.
     INIT_CHECK();
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult = mPlugin->getPropertyByteArray(
             toHidlString(name), [&](Status status, const hidl_vec<uint8_t>& hValue) {
@@ -1223,25 +1224,26 @@
     return err;
 }
 
-status_t DrmHalHidl::setPropertyString(String8 const& name, String8 const& value) const {
+DrmStatus DrmHalHidl::setPropertyString(String8 const& name, String8 const& value) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     Return<Status> status = mPlugin->setPropertyString(toHidlString(name), toHidlString(value));
-    return status.isOk() ? toStatusT(status) : DEAD_OBJECT;
+    return status.isOk() ? DrmStatus(toStatusT(status)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::setPropertyByteArray(String8 const& name, Vector<uint8_t> const& value) const {
+DrmStatus DrmHalHidl::setPropertyByteArray(String8 const& name,
+                                           Vector<uint8_t> const& value) const {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     Return<Status> status = mPlugin->setPropertyByteArray(toHidlString(name), toHidlVec(value));
-    return status.isOk() ? toStatusT(status) : DEAD_OBJECT;
+    return status.isOk() ? DrmStatus(toStatusT(status)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getMetrics(const sp<IDrmMetricsConsumer>& consumer) {
+DrmStatus DrmHalHidl::getMetrics(const sp<IDrmMetricsConsumer>& consumer) {
     if (consumer == nullptr) {
-        return UNEXPECTED_NULL;
+        return DrmStatus(UNEXPECTED_NULL);
     }
     consumer->consumeFrameworkMetrics(mMetrics);
 
@@ -1262,7 +1264,7 @@
         vendor += description;
 
         hidl_vec<DrmMetricGroup> pluginMetrics;
-        status_t err = UNKNOWN_ERROR;
+        DrmStatus err = UNKNOWN_ERROR;
 
         Return<void> status =
                 mPluginV1_1->getMetrics([&](Status status, hidl_vec<DrmMetricGroup> pluginMetrics) {
@@ -1273,14 +1275,14 @@
                     }
                     err = toStatusT(status);
                 });
-        return status.isOk() ? err : DEAD_OBJECT;
+        return status.isOk() ? err : DrmStatus(DEAD_OBJECT);
     }
 
-    return OK;
+    return DrmStatus(OK);
 }
 
-status_t DrmHalHidl::setCipherAlgorithm(Vector<uint8_t> const& sessionId,
-                                        String8 const& algorithm) {
+DrmStatus DrmHalHidl::setCipherAlgorithm(Vector<uint8_t> const& sessionId,
+                                         String8 const& algorithm) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
@@ -1288,28 +1290,28 @@
 
     Return<Status> status =
             mPlugin->setCipherAlgorithm(toHidlVec(sessionId), toHidlString(algorithm));
-    return status.isOk() ? toStatusT(status) : DEAD_OBJECT;
+    return status.isOk() ? DrmStatus(toStatusT(status)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::setMacAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm) {
+DrmStatus DrmHalHidl::setMacAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     DrmSessionManager::Instance()->useSession(sessionId);
 
     Return<Status> status = mPlugin->setMacAlgorithm(toHidlVec(sessionId), toHidlString(algorithm));
-    return status.isOk() ? toStatusT(status) : DEAD_OBJECT;
+    return status.isOk() ? DrmStatus(toStatusT(status)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::encrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                             Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
-                             Vector<uint8_t>& output) {
+DrmStatus DrmHalHidl::encrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                              Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
+                              Vector<uint8_t>& output) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     DrmSessionManager::Instance()->useSession(sessionId);
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult =
             mPlugin->encrypt(toHidlVec(sessionId), toHidlVec(keyId), toHidlVec(input),
@@ -1320,18 +1322,18 @@
                                  err = toStatusT(status);
                              });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::decrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                             Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
-                             Vector<uint8_t>& output) {
+DrmStatus DrmHalHidl::decrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                              Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
+                              Vector<uint8_t>& output) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     DrmSessionManager::Instance()->useSession(sessionId);
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult =
             mPlugin->decrypt(toHidlVec(sessionId), toHidlVec(keyId), toHidlVec(input),
@@ -1342,17 +1344,17 @@
                                  err = toStatusT(status);
                              });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::sign(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                          Vector<uint8_t> const& message, Vector<uint8_t>& signature) {
+DrmStatus DrmHalHidl::sign(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                           Vector<uint8_t> const& message, Vector<uint8_t>& signature) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     DrmSessionManager::Instance()->useSession(sessionId);
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult = mPlugin->sign(toHidlVec(sessionId), toHidlVec(keyId), toHidlVec(message),
                                          [&](Status status, const hidl_vec<uint8_t>& hSignature) {
@@ -1362,18 +1364,18 @@
                                              err = toStatusT(status);
                                          });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::verify(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                            Vector<uint8_t> const& message, Vector<uint8_t> const& signature,
-                            bool& match) {
+DrmStatus DrmHalHidl::verify(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                             Vector<uint8_t> const& message, Vector<uint8_t> const& signature,
+                             bool& match) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     DrmSessionManager::Instance()->useSession(sessionId);
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult =
             mPlugin->verify(toHidlVec(sessionId), toHidlVec(keyId), toHidlVec(message),
@@ -1386,18 +1388,18 @@
                                 err = toStatusT(status);
                             });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::signRSA(Vector<uint8_t> const& sessionId, String8 const& algorithm,
-                             Vector<uint8_t> const& message, Vector<uint8_t> const& wrappedKey,
-                             Vector<uint8_t>& signature) {
+DrmStatus DrmHalHidl::signRSA(Vector<uint8_t> const& sessionId, String8 const& algorithm,
+                              Vector<uint8_t> const& message, Vector<uint8_t> const& wrappedKey,
+                              Vector<uint8_t>& signature) {
     Mutex::Autolock autoLock(mLock);
     INIT_CHECK();
 
     DrmSessionManager::Instance()->useSession(sessionId);
 
-    status_t err = UNKNOWN_ERROR;
+    DrmStatus err = UNKNOWN_ERROR;
 
     Return<void> hResult = mPlugin->signRSA(
             toHidlVec(sessionId), toHidlString(algorithm), toHidlVec(message),
@@ -1408,7 +1410,7 @@
                 err = toStatusT(status);
             });
 
-    return hResult.isOk() ? err : DEAD_OBJECT;
+    return hResult.isOk() ? err : DrmStatus(DEAD_OBJECT);
 }
 
 std::string DrmHalHidl::reportFrameworkMetrics(const std::string& pluginMetrics) const {
@@ -1467,55 +1469,56 @@
     return metricsString;
 }
 
-status_t DrmHalHidl::requiresSecureDecoder(const char* mime, bool* required) const {
+DrmStatus DrmHalHidl::requiresSecureDecoder(const char* mime, bool* required) const {
     Mutex::Autolock autoLock(mLock);
     if (mPluginV1_4 == NULL) {
-        return false;
+        return DrmStatus(false);
     }
     auto hResult = mPluginV1_4->requiresSecureDecoderDefault(hidl_string(mime));
     if (!hResult.isOk()) {
         DrmUtils::LOG2BE("requiresSecureDecoder txn failed: %s", hResult.description().c_str());
-        return DEAD_OBJECT;
+        return DrmStatus(DEAD_OBJECT);
     }
     if (required) {
         *required = hResult;
     }
-    return OK;
+    return DrmStatus(OK);
 }
 
-status_t DrmHalHidl::requiresSecureDecoder(const char* mime, DrmPlugin::SecurityLevel securityLevel,
-                                           bool* required) const {
+DrmStatus DrmHalHidl::requiresSecureDecoder(const char* mime,
+                                            DrmPlugin::SecurityLevel securityLevel,
+                                            bool* required) const {
     Mutex::Autolock autoLock(mLock);
     if (mPluginV1_4 == NULL) {
-        return false;
+        return DrmStatus(false);
     }
     auto hLevel = toHidlSecurityLevel(securityLevel);
     auto hResult = mPluginV1_4->requiresSecureDecoder(hidl_string(mime), hLevel);
     if (!hResult.isOk()) {
         DrmUtils::LOG2BE("requiresSecureDecoder txn failed: %s", hResult.description().c_str());
-        return DEAD_OBJECT;
+        return DrmStatus(DEAD_OBJECT);
     }
     if (required) {
         *required = hResult;
     }
-    return OK;
+    return DrmStatus(OK);
 }
 
-status_t DrmHalHidl::setPlaybackId(Vector<uint8_t> const& sessionId, const char* playbackId) {
+DrmStatus DrmHalHidl::setPlaybackId(Vector<uint8_t> const& sessionId, const char* playbackId) {
     Mutex::Autolock autoLock(mLock);
     if (mPluginV1_4 == NULL) {
-        return ERROR_UNSUPPORTED;
+        return DrmStatus(ERROR_UNSUPPORTED);
     }
     auto err = mPluginV1_4->setPlaybackId(toHidlVec(sessionId), hidl_string(playbackId));
-    return err.isOk() ? toStatusT(err) : DEAD_OBJECT;
+    return err.isOk() ? DrmStatus(toStatusT(err)) : DrmStatus(DEAD_OBJECT);
 }
 
-status_t DrmHalHidl::getLogMessages(Vector<drm::V1_4::LogMessage>& logs) const {
+DrmStatus DrmHalHidl::getLogMessages(Vector<drm::V1_4::LogMessage>& logs) const {
     Mutex::Autolock autoLock(mLock);
-    return DrmUtils::GetLogMessages<drm::V1_4::IDrmPlugin>(mPlugin, logs);
+    return DrmStatus(DrmUtils::GetLogMessages<drm::V1_4::IDrmPlugin>(mPlugin, logs));
 }
 
-status_t DrmHalHidl::getSupportedSchemes(std::vector<uint8_t> &schemes) const {
+DrmStatus DrmHalHidl::getSupportedSchemes(std::vector<uint8_t>& schemes) const {
     Mutex::Autolock autoLock(mLock);
     for (auto &factory : mFactories) {
         sp<drm::V1_3::IDrmFactory> factoryV1_3 = drm::V1_3::IDrmFactory::castFrom(factory);
@@ -1531,7 +1534,7 @@
             });
     }
 
-    return OK;
+    return DrmStatus(OK);
 }
 
 }  // namespace android
diff --git a/drm/libmediadrm/include/mediadrm/DrmHal.h b/drm/libmediadrm/include/mediadrm/DrmHal.h
index eab597b..16e5fe1 100644
--- a/drm/libmediadrm/include/mediadrm/DrmHal.h
+++ b/drm/libmediadrm/include/mediadrm/DrmHal.h
@@ -15,6 +15,7 @@
  */
 
 #include <mediadrm/IDrm.h>
+#include <mediadrm/DrmStatus.h>
 
 #ifndef DRM_HAL_H_
 #define DRM_HAL_H_
@@ -24,100 +25,99 @@
 struct DrmHal : public IDrm {
     DrmHal();
     virtual ~DrmHal();
-    virtual status_t initCheck() const;
-    virtual status_t isCryptoSchemeSupported(const uint8_t uuid[16],
-                                             const String8 &mimeType,
-                                             DrmPlugin::SecurityLevel securityLevel,
-                                             bool *result);
-    virtual status_t createPlugin(const uint8_t uuid[16],
-                                  const String8 &appPackageName);
-    virtual status_t destroyPlugin();
-    virtual status_t openSession(DrmPlugin::SecurityLevel securityLevel,
+    virtual DrmStatus initCheck() const;
+    virtual DrmStatus isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
+                                              DrmPlugin::SecurityLevel securityLevel, bool* result);
+    virtual DrmStatus createPlugin(const uint8_t uuid[16],
+                                   const String8 &appPackageName);
+    virtual DrmStatus destroyPlugin();
+    virtual DrmStatus openSession(DrmPlugin::SecurityLevel securityLevel,
             Vector<uint8_t> &sessionId);
-    virtual status_t closeSession(Vector<uint8_t> const &sessionId);
-    virtual status_t
+    virtual DrmStatus closeSession(Vector<uint8_t> const &sessionId);
+    virtual DrmStatus
         getKeyRequest(Vector<uint8_t> const &sessionId,
                       Vector<uint8_t> const &initData,
                       String8 const &mimeType, DrmPlugin::KeyType keyType,
                       KeyedVector<String8, String8> const &optionalParameters,
                       Vector<uint8_t> &request, String8 &defaultUrl,
                       DrmPlugin::KeyRequestType *keyRequestType);
-    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
-                                        Vector<uint8_t> const &response,
-                                        Vector<uint8_t> &keySetId);
-    virtual status_t removeKeys(Vector<uint8_t> const &keySetId);
-    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
-                                 Vector<uint8_t> const &keySetId);
-    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
-                                    KeyedVector<String8, String8> &infoMap) const;
-    virtual status_t getProvisionRequest(String8 const &certType,
-                                         String8 const &certAuthority,
-                                         Vector<uint8_t> &request,
-                                         String8 &defaultUrl);
-    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
-                                              Vector<uint8_t> &certificate,
-                                              Vector<uint8_t> &wrappedKey);
-    virtual status_t getSecureStops(List<Vector<uint8_t>> &secureStops);
-    virtual status_t getSecureStopIds(List<Vector<uint8_t>> &secureStopIds);
-    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
-    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease);
-    virtual status_t removeSecureStop(Vector<uint8_t> const &ssid);
-    virtual status_t removeAllSecureStops();
-    virtual status_t getHdcpLevels(DrmPlugin::HdcpLevel *connectedLevel,
+    virtual DrmStatus provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                         Vector<uint8_t> const &response,
+                                         Vector<uint8_t> &keySetId);
+    virtual DrmStatus removeKeys(Vector<uint8_t> const &keySetId);
+    virtual DrmStatus restoreKeys(Vector<uint8_t> const &sessionId,
+                                  Vector<uint8_t> const &keySetId);
+    virtual DrmStatus queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                     KeyedVector<String8, String8> &infoMap) const;
+    virtual DrmStatus getProvisionRequest(String8 const &certType,
+                                          String8 const &certAuthority,
+                                          Vector<uint8_t> &request,
+                                          String8 &defaultUrl);
+    virtual DrmStatus provideProvisionResponse(Vector<uint8_t> const &response,
+                                               Vector<uint8_t> &certificate,
+                                               Vector<uint8_t> &wrappedKey);
+    virtual DrmStatus getSecureStops(List<Vector<uint8_t>> &secureStops);
+    virtual DrmStatus getSecureStopIds(List<Vector<uint8_t>> &secureStopIds);
+    virtual DrmStatus getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
+    virtual DrmStatus releaseSecureStops(Vector<uint8_t> const &ssRelease);
+    virtual DrmStatus removeSecureStop(Vector<uint8_t> const &ssid);
+    virtual DrmStatus removeAllSecureStops();
+    virtual DrmStatus getHdcpLevels(DrmPlugin::HdcpLevel *connectedLevel,
             DrmPlugin::HdcpLevel *maxLevel) const;
-    virtual status_t getNumberOfSessions(uint32_t *currentSessions,
+    virtual DrmStatus getNumberOfSessions(uint32_t *currentSessions,
             uint32_t *maxSessions) const;
-    virtual status_t getSecurityLevel(Vector<uint8_t> const &sessionId,
+    virtual DrmStatus getSecurityLevel(Vector<uint8_t> const &sessionId,
             DrmPlugin::SecurityLevel *level) const;
-    virtual status_t getOfflineLicenseKeySetIds(List<Vector<uint8_t>> &keySetIds) const;
-    virtual status_t removeOfflineLicense(Vector<uint8_t> const &keySetId);
-    virtual status_t getOfflineLicenseState(Vector<uint8_t> const &keySetId,
+    virtual DrmStatus getOfflineLicenseKeySetIds(List<Vector<uint8_t>> &keySetIds) const;
+    virtual DrmStatus removeOfflineLicense(Vector<uint8_t> const &keySetId);
+    virtual DrmStatus getOfflineLicenseState(Vector<uint8_t> const &keySetId,
             DrmPlugin::OfflineLicenseState *licenseState) const;
-    virtual status_t getPropertyString(String8 const &name, String8 &value) const;
-    virtual status_t getPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> &value) const;
-    virtual status_t setPropertyString(String8 const &name,
-                                       String8 const &value ) const;
-    virtual status_t setPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> const &value) const;
-    virtual status_t getMetrics(const sp<IDrmMetricsConsumer> &consumer);
-    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
-                                        String8 const &algorithm);
-    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
-                                     String8 const &algorithm);
-    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+    virtual DrmStatus getPropertyString(String8 const &name, String8 &value) const;
+    virtual DrmStatus getPropertyByteArray(String8 const &name,
+                                           Vector<uint8_t> &value) const;
+    virtual DrmStatus setPropertyString(String8 const &name,
+                                        String8 const &value ) const;
+    virtual DrmStatus setPropertyByteArray(String8 const &name,
+                                           Vector<uint8_t> const &value) const;
+    virtual DrmStatus getMetrics(const sp<IDrmMetricsConsumer> &consumer);
+    virtual DrmStatus setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                         String8 const &algorithm);
+    virtual DrmStatus setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                      String8 const &algorithm);
+    virtual DrmStatus encrypt(Vector<uint8_t> const &sessionId,
+                              Vector<uint8_t> const &keyId,
+                              Vector<uint8_t> const &input,
+                              Vector<uint8_t> const &iv,
+                              Vector<uint8_t> &output);
+    virtual DrmStatus decrypt(Vector<uint8_t> const &sessionId,
+                              Vector<uint8_t> const &keyId,
+                              Vector<uint8_t> const &input,
+                              Vector<uint8_t> const &iv,
+                              Vector<uint8_t> &output);
+    virtual DrmStatus sign(Vector<uint8_t> const &sessionId,
+                           Vector<uint8_t> const &keyId,
+                           Vector<uint8_t> const &message,
+                           Vector<uint8_t> &signature);
+    virtual DrmStatus verify(Vector<uint8_t> const &sessionId,
                              Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output);
-    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output);
-    virtual status_t sign(Vector<uint8_t> const &sessionId,
-                          Vector<uint8_t> const &keyId,
-                          Vector<uint8_t> const &message,
-                          Vector<uint8_t> &signature);
-    virtual status_t verify(Vector<uint8_t> const &sessionId,
-                            Vector<uint8_t> const &keyId,
-                            Vector<uint8_t> const &message,
-                            Vector<uint8_t> const &signature,
-                            bool &match);
-    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
-                             String8 const &algorithm,
                              Vector<uint8_t> const &message,
-                             Vector<uint8_t> const &wrappedKey,
-                             Vector<uint8_t> &signature);
-    virtual status_t setListener(const sp<IDrmClient>& listener);
-    virtual status_t requiresSecureDecoder(const char *mime, bool *required) const;
-    virtual status_t requiresSecureDecoder(const char *mime, DrmPlugin::SecurityLevel securityLevel,
-                                           bool *required) const;
-    virtual status_t setPlaybackId(
+                             Vector<uint8_t> const &signature,
+                             bool &match);
+    virtual DrmStatus signRSA(Vector<uint8_t> const &sessionId,
+                              String8 const &algorithm,
+                              Vector<uint8_t> const &message,
+                              Vector<uint8_t> const &wrappedKey,
+                              Vector<uint8_t> &signature);
+    virtual DrmStatus setListener(const sp<IDrmClient>& listener);
+    virtual DrmStatus requiresSecureDecoder(const char *mime, bool *required) const;
+    virtual DrmStatus requiresSecureDecoder(const char *mime,
+                                            DrmPlugin::SecurityLevel securityLevel,
+                                            bool *required) const;
+    virtual DrmStatus setPlaybackId(
             Vector<uint8_t> const &sessionId,
             const char *playbackId);
-    virtual status_t getLogMessages(Vector<drm::V1_4::LogMessage> &logs) const;
-    virtual status_t getSupportedSchemes(std::vector<uint8_t> &schemes) const;
+    virtual DrmStatus getLogMessages(Vector<drm::V1_4::LogMessage> &logs) const;
+    virtual DrmStatus getSupportedSchemes(std::vector<uint8_t> &schemes) const;
 
 private:
     sp<IDrm> mDrmHalHidl;
diff --git a/drm/libmediadrm/include/mediadrm/DrmHalAidl.h b/drm/libmediadrm/include/mediadrm/DrmHalAidl.h
index 0f51ce9..e0b8341 100644
--- a/drm/libmediadrm/include/mediadrm/DrmHalAidl.h
+++ b/drm/libmediadrm/include/mediadrm/DrmHalAidl.h
@@ -25,6 +25,7 @@
 #include <mediadrm/DrmMetrics.h>
 #include <mediadrm/DrmSessionManager.h>
 #include <mediadrm/DrmHalListener.h>
+#include <mediadrm/DrmStatus.h>
 #include <mediadrm/IDrm.h>
 
 using IDrmPluginAidl = ::aidl::android::hardware::drm::IDrmPlugin;
@@ -38,74 +39,78 @@
     struct DrmSessionClient;
     DrmHalAidl();
     virtual ~DrmHalAidl();
-    virtual status_t initCheck() const;
-    virtual status_t isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
-                                             DrmPlugin::SecurityLevel securityLevel, bool* result);
-    virtual status_t createPlugin(const uint8_t uuid[16], const String8& appPackageName);
-    virtual status_t destroyPlugin();
-    virtual status_t openSession(DrmPlugin::SecurityLevel securityLevel,
-                                 Vector<uint8_t>& sessionId);
-    virtual status_t closeSession(Vector<uint8_t> const& sessionId);
-    virtual status_t getKeyRequest(Vector<uint8_t> const& sessionId,
-                                   Vector<uint8_t> const& initData, String8 const& mimeType,
-                                   DrmPlugin::KeyType keyType,
-                                   KeyedVector<String8, String8> const& optionalParameters,
-                                   Vector<uint8_t>& request, String8& defaultUrl,
-                                   DrmPlugin::KeyRequestType* keyRequestType);
-    virtual status_t provideKeyResponse(Vector<uint8_t> const& sessionId,
-                                        Vector<uint8_t> const& response, Vector<uint8_t>& keySetId);
-    virtual status_t removeKeys(Vector<uint8_t> const& keySetId);
-    virtual status_t restoreKeys(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keySetId);
-    virtual status_t queryKeyStatus(Vector<uint8_t> const& sessionId,
-                                    KeyedVector<String8, String8>& infoMap) const;
-    virtual status_t getProvisionRequest(String8 const& certType, String8 const& certAuthority,
-                                         Vector<uint8_t>& request, String8& defaultUrl);
-    virtual status_t provideProvisionResponse(Vector<uint8_t> const& response,
-                                              Vector<uint8_t>& certificate,
-                                              Vector<uint8_t>& wrappedKey);
-    virtual status_t getSecureStops(List<Vector<uint8_t>>& secureStops);
-    virtual status_t getSecureStopIds(List<Vector<uint8_t>>& secureStopIds);
-    virtual status_t getSecureStop(Vector<uint8_t> const& ssid, Vector<uint8_t>& secureStop);
-    virtual status_t releaseSecureStops(Vector<uint8_t> const& ssRelease);
-    virtual status_t removeSecureStop(Vector<uint8_t> const& ssid);
-    virtual status_t removeAllSecureStops();
-    virtual status_t getHdcpLevels(DrmPlugin::HdcpLevel* connectedLevel,
-                                   DrmPlugin::HdcpLevel* maxLevel) const;
-    virtual status_t getNumberOfSessions(uint32_t* currentSessions, uint32_t* maxSessions) const;
-    virtual status_t getSecurityLevel(Vector<uint8_t> const& sessionId,
-                                      DrmPlugin::SecurityLevel* level) const;
-    virtual status_t getOfflineLicenseKeySetIds(List<Vector<uint8_t>>& keySetIds) const;
-    virtual status_t removeOfflineLicense(Vector<uint8_t> const& keySetId);
-    virtual status_t getOfflineLicenseState(Vector<uint8_t> const& keySetId,
-                                            DrmPlugin::OfflineLicenseState* licenseState) const;
-    virtual status_t getPropertyString(String8 const& name, String8& value) const;
-    virtual status_t getPropertyByteArray(String8 const& name, Vector<uint8_t>& value) const;
-    virtual status_t setPropertyString(String8 const& name, String8 const& value) const;
-    virtual status_t setPropertyByteArray(String8 const& name, Vector<uint8_t> const& value) const;
-    virtual status_t getMetrics(const sp<IDrmMetricsConsumer>& consumer);
-    virtual status_t setCipherAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm);
-    virtual status_t setMacAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm);
-    virtual status_t encrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                             Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
-                             Vector<uint8_t>& output);
-    virtual status_t decrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                             Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
-                             Vector<uint8_t>& output);
-    virtual status_t sign(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                          Vector<uint8_t> const& message, Vector<uint8_t>& signature);
-    virtual status_t verify(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
-                            Vector<uint8_t> const& message, Vector<uint8_t> const& signature,
-                            bool& match);
-    virtual status_t signRSA(Vector<uint8_t> const& sessionId, String8 const& algorithm,
-                             Vector<uint8_t> const& message, Vector<uint8_t> const& wrappedKey,
-                             Vector<uint8_t>& signature);
-    virtual status_t setListener(const sp<IDrmClient>& listener);
-    virtual status_t requiresSecureDecoder(const char* mime, bool* required) const;
-    virtual status_t requiresSecureDecoder(const char* mime, DrmPlugin::SecurityLevel securityLevel,
-                                           bool* required) const;
-    virtual status_t setPlaybackId(Vector<uint8_t> const& sessionId, const char* playbackId);
-    virtual status_t getLogMessages(Vector<drm::V1_4::LogMessage>& logs) const;
-    virtual status_t getSupportedSchemes(std::vector<uint8_t> &schemes) const;
+    virtual DrmStatus initCheck() const;
+    virtual DrmStatus isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
+                                              DrmPlugin::SecurityLevel securityLevel, bool* result);
+    virtual DrmStatus createPlugin(const uint8_t uuid[16], const String8& appPackageName);
+    virtual DrmStatus destroyPlugin();
+    virtual DrmStatus openSession(DrmPlugin::SecurityLevel securityLevel,
+                                  Vector<uint8_t>& sessionId);
+    virtual DrmStatus closeSession(Vector<uint8_t> const& sessionId);
+    virtual DrmStatus getKeyRequest(Vector<uint8_t> const& sessionId,
+                                    Vector<uint8_t> const& initData, String8 const& mimeType,
+                                    DrmPlugin::KeyType keyType,
+                                    KeyedVector<String8, String8> const& optionalParameters,
+                                    Vector<uint8_t>& request, String8& defaultUrl,
+                                    DrmPlugin::KeyRequestType* keyRequestType);
+    virtual DrmStatus provideKeyResponse(Vector<uint8_t> const& sessionId,
+                                         Vector<uint8_t> const& response,
+                                         Vector<uint8_t>& keySetId);
+    virtual DrmStatus removeKeys(Vector<uint8_t> const& keySetId);
+    virtual DrmStatus restoreKeys(Vector<uint8_t> const& sessionId,
+                                  Vector<uint8_t> const& keySetId);
+    virtual DrmStatus queryKeyStatus(Vector<uint8_t> const& sessionId,
+                                     KeyedVector<String8, String8>& infoMap) const;
+    virtual DrmStatus getProvisionRequest(String8 const& certType, String8 const& certAuthority,
+                                          Vector<uint8_t>& request, String8& defaultUrl);
+    virtual DrmStatus provideProvisionResponse(Vector<uint8_t> const& response,
+                                               Vector<uint8_t>& certificate,
+                                               Vector<uint8_t>& wrappedKey);
+    virtual DrmStatus getSecureStops(List<Vector<uint8_t>>& secureStops);
+    virtual DrmStatus getSecureStopIds(List<Vector<uint8_t>>& secureStopIds);
+    virtual DrmStatus getSecureStop(Vector<uint8_t> const& ssid, Vector<uint8_t>& secureStop);
+    virtual DrmStatus releaseSecureStops(Vector<uint8_t> const& ssRelease);
+    virtual DrmStatus removeSecureStop(Vector<uint8_t> const& ssid);
+    virtual DrmStatus removeAllSecureStops();
+    virtual DrmStatus getHdcpLevels(DrmPlugin::HdcpLevel* connectedLevel,
+                                    DrmPlugin::HdcpLevel* maxLevel) const;
+    virtual DrmStatus getNumberOfSessions(uint32_t* currentSessions, uint32_t* maxSessions) const;
+    virtual DrmStatus getSecurityLevel(Vector<uint8_t> const& sessionId,
+                                       DrmPlugin::SecurityLevel* level) const;
+    virtual DrmStatus getOfflineLicenseKeySetIds(List<Vector<uint8_t>>& keySetIds) const;
+    virtual DrmStatus removeOfflineLicense(Vector<uint8_t> const& keySetId);
+    virtual DrmStatus getOfflineLicenseState(Vector<uint8_t> const& keySetId,
+                                             DrmPlugin::OfflineLicenseState* licenseState) const;
+    virtual DrmStatus getPropertyString(String8 const& name, String8& value) const;
+    virtual DrmStatus getPropertyByteArray(String8 const& name, Vector<uint8_t>& value) const;
+    virtual DrmStatus setPropertyString(String8 const& name, String8 const& value) const;
+    virtual DrmStatus setPropertyByteArray(String8 const& name, Vector<uint8_t> const& value) const;
+    virtual DrmStatus getMetrics(const sp<IDrmMetricsConsumer>& consumer);
+    virtual DrmStatus setCipherAlgorithm(Vector<uint8_t> const& sessionId,
+                                         String8 const& algorithm);
+    virtual DrmStatus setMacAlgorithm(Vector<uint8_t> const& sessionId, String8 const& algorithm);
+    virtual DrmStatus encrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                              Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
+                              Vector<uint8_t>& output);
+    virtual DrmStatus decrypt(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                              Vector<uint8_t> const& input, Vector<uint8_t> const& iv,
+                              Vector<uint8_t>& output);
+    virtual DrmStatus sign(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                           Vector<uint8_t> const& message, Vector<uint8_t>& signature);
+    virtual DrmStatus verify(Vector<uint8_t> const& sessionId, Vector<uint8_t> const& keyId,
+                             Vector<uint8_t> const& message, Vector<uint8_t> const& signature,
+                             bool& match);
+    virtual DrmStatus signRSA(Vector<uint8_t> const& sessionId, String8 const& algorithm,
+                              Vector<uint8_t> const& message, Vector<uint8_t> const& wrappedKey,
+                              Vector<uint8_t>& signature);
+    virtual DrmStatus setListener(const sp<IDrmClient>& listener);
+    virtual DrmStatus requiresSecureDecoder(const char* mime, bool* required) const;
+    virtual DrmStatus requiresSecureDecoder(const char* mime,
+                                            DrmPlugin::SecurityLevel securityLevel,
+                                            bool* required) const;
+    virtual DrmStatus setPlaybackId(Vector<uint8_t> const& sessionId, const char* playbackId);
+    virtual DrmStatus getLogMessages(Vector<drm::V1_4::LogMessage>& logs) const;
+    virtual DrmStatus getSupportedSchemes(std::vector<uint8_t>& schemes) const;
 
     ::ndk::ScopedAStatus onEvent(EventTypeAidl in_eventType,
                                  const std::vector<uint8_t>& in_sessionId,
@@ -128,8 +133,8 @@
     void closeOpenSessions();
     std::string reportPluginMetrics() const;
     std::string reportFrameworkMetrics(const std::string& pluginMetrics) const;
-    status_t getPropertyStringInternal(String8 const& name, String8& value) const;
-    status_t getPropertyByteArrayInternal(String8 const& name, Vector<uint8_t>& value) const;
+    DrmStatus getPropertyStringInternal(String8 const& name, String8& value) const;
+    DrmStatus getPropertyByteArrayInternal(String8 const& name, Vector<uint8_t>& value) const;
     DISALLOW_EVIL_CONSTRUCTORS(DrmHalAidl);
 };
 
diff --git a/drm/libmediadrm/include/mediadrm/DrmHalHidl.h b/drm/libmediadrm/include/mediadrm/DrmHalHidl.h
index 11f0608..45764a1 100644
--- a/drm/libmediadrm/include/mediadrm/DrmHalHidl.h
+++ b/drm/libmediadrm/include/mediadrm/DrmHalHidl.h
@@ -26,6 +26,7 @@
 #include <media/drm/DrmAPI.h>
 #include <mediadrm/DrmMetrics.h>
 #include <mediadrm/DrmSessionManager.h>
+#include <mediadrm/DrmStatus.h>
 #include <mediadrm/IDrm.h>
 #include <mediadrm/IDrmClient.h>
 #include <mediadrm/IDrmMetricsConsumer.h>
@@ -63,24 +64,22 @@
     DrmHalHidl();
     virtual ~DrmHalHidl();
 
-    virtual status_t initCheck() const;
+    virtual DrmStatus initCheck() const;
 
-    virtual status_t isCryptoSchemeSupported(const uint8_t uuid[16],
-                                             const String8& mimeType,
-                                             DrmPlugin::SecurityLevel level,
-                                             bool *isSupported);
+    virtual DrmStatus isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
+                                              DrmPlugin::SecurityLevel level, bool* isSupported);
 
-    virtual status_t createPlugin(const uint8_t uuid[16],
+    virtual DrmStatus createPlugin(const uint8_t uuid[16],
                                   const String8 &appPackageName);
 
-    virtual status_t destroyPlugin();
+    virtual DrmStatus destroyPlugin();
 
-    virtual status_t openSession(DrmPlugin::SecurityLevel level,
+    virtual DrmStatus openSession(DrmPlugin::SecurityLevel level,
             Vector<uint8_t> &sessionId);
 
-    virtual status_t closeSession(Vector<uint8_t> const &sessionId);
+    virtual DrmStatus closeSession(Vector<uint8_t> const &sessionId);
 
-    virtual status_t
+    virtual DrmStatus
         getKeyRequest(Vector<uint8_t> const &sessionId,
                       Vector<uint8_t> const &initData,
                       String8 const &mimeType, DrmPlugin::KeyType keyType,
@@ -88,103 +87,104 @@
                       Vector<uint8_t> &request, String8 &defaultUrl,
                       DrmPlugin::KeyRequestType *keyRequestType);
 
-    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
-                                        Vector<uint8_t> const &response,
-                                        Vector<uint8_t> &keySetId);
+    virtual DrmStatus provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                         Vector<uint8_t> const &response,
+                                         Vector<uint8_t> &keySetId);
 
-    virtual status_t removeKeys(Vector<uint8_t> const &keySetId);
+    virtual DrmStatus removeKeys(Vector<uint8_t> const &keySetId);
 
-    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
-                                 Vector<uint8_t> const &keySetId);
+    virtual DrmStatus restoreKeys(Vector<uint8_t> const &sessionId,
+                                  Vector<uint8_t> const &keySetId);
 
-    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
-                                    KeyedVector<String8, String8> &infoMap) const;
+    virtual DrmStatus queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                     KeyedVector<String8, String8> &infoMap) const;
 
-    virtual status_t getProvisionRequest(String8 const &certType,
-                                         String8 const &certAuthority,
-                                         Vector<uint8_t> &request,
-                                         String8 &defaultUrl);
+    virtual DrmStatus getProvisionRequest(String8 const &certType,
+                                          String8 const &certAuthority,
+                                          Vector<uint8_t> &request,
+                                          String8 &defaultUrl);
 
-    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
-                                              Vector<uint8_t> &certificate,
-                                              Vector<uint8_t> &wrappedKey);
+    virtual DrmStatus provideProvisionResponse(Vector<uint8_t> const &response,
+                                               Vector<uint8_t> &certificate,
+                                               Vector<uint8_t> &wrappedKey);
 
-    virtual status_t getSecureStops(List<Vector<uint8_t>> &secureStops);
-    virtual status_t getSecureStopIds(List<Vector<uint8_t>> &secureStopIds);
-    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
+    virtual DrmStatus getSecureStops(List<Vector<uint8_t>> &secureStops);
+    virtual DrmStatus getSecureStopIds(List<Vector<uint8_t>> &secureStopIds);
+    virtual DrmStatus getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
 
-    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease);
-    virtual status_t removeSecureStop(Vector<uint8_t> const &ssid);
-    virtual status_t removeAllSecureStops();
+    virtual DrmStatus releaseSecureStops(Vector<uint8_t> const &ssRelease);
+    virtual DrmStatus removeSecureStop(Vector<uint8_t> const &ssid);
+    virtual DrmStatus removeAllSecureStops();
 
-    virtual status_t getHdcpLevels(DrmPlugin::HdcpLevel *connectedLevel,
+    virtual DrmStatus getHdcpLevels(DrmPlugin::HdcpLevel *connectedLevel,
             DrmPlugin::HdcpLevel *maxLevel) const;
-    virtual status_t getNumberOfSessions(uint32_t *currentSessions,
+    virtual DrmStatus getNumberOfSessions(uint32_t *currentSessions,
             uint32_t *maxSessions) const;
-    virtual status_t getSecurityLevel(Vector<uint8_t> const &sessionId,
+    virtual DrmStatus getSecurityLevel(Vector<uint8_t> const &sessionId,
             DrmPlugin::SecurityLevel *level) const;
 
-    virtual status_t getOfflineLicenseKeySetIds(List<Vector<uint8_t>> &keySetIds) const;
-    virtual status_t removeOfflineLicense(Vector<uint8_t> const &keySetId);
-    virtual status_t getOfflineLicenseState(Vector<uint8_t> const &keySetId,
+    virtual DrmStatus getOfflineLicenseKeySetIds(List<Vector<uint8_t>> &keySetIds) const;
+    virtual DrmStatus removeOfflineLicense(Vector<uint8_t> const &keySetId);
+    virtual DrmStatus getOfflineLicenseState(Vector<uint8_t> const &keySetId,
             DrmPlugin::OfflineLicenseState *licenseState) const;
 
-    virtual status_t getPropertyString(String8 const &name, String8 &value ) const;
-    virtual status_t getPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> &value ) const;
-    virtual status_t setPropertyString(String8 const &name, String8 const &value ) const;
-    virtual status_t setPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> const &value ) const;
-    virtual status_t getMetrics(const sp<IDrmMetricsConsumer> &consumer);
+    virtual DrmStatus getPropertyString(String8 const &name, String8 &value ) const;
+    virtual DrmStatus getPropertyByteArray(String8 const &name,
+                                           Vector<uint8_t> &value ) const;
+    virtual DrmStatus setPropertyString(String8 const &name, String8 const &value ) const;
+    virtual DrmStatus setPropertyByteArray(String8 const &name,
+                                           Vector<uint8_t> const &value ) const;
+    virtual DrmStatus getMetrics(const sp<IDrmMetricsConsumer> &consumer);
 
-    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
-                                        String8 const &algorithm);
+    virtual DrmStatus setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                         String8 const &algorithm);
 
-    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
-                                     String8 const &algorithm);
+    virtual DrmStatus setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                      String8 const &algorithm);
 
-    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+    virtual DrmStatus encrypt(Vector<uint8_t> const &sessionId,
+                              Vector<uint8_t> const &keyId,
+                              Vector<uint8_t> const &input,
+                              Vector<uint8_t> const &iv,
+                              Vector<uint8_t> &output);
+
+    virtual DrmStatus decrypt(Vector<uint8_t> const &sessionId,
+                              Vector<uint8_t> const &keyId,
+                              Vector<uint8_t> const &input,
+                              Vector<uint8_t> const &iv,
+                              Vector<uint8_t> &output);
+
+    virtual DrmStatus sign(Vector<uint8_t> const &sessionId,
+                           Vector<uint8_t> const &keyId,
+                           Vector<uint8_t> const &message,
+                           Vector<uint8_t> &signature);
+
+    virtual DrmStatus verify(Vector<uint8_t> const &sessionId,
                              Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output);
-
-    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output);
-
-    virtual status_t sign(Vector<uint8_t> const &sessionId,
-                          Vector<uint8_t> const &keyId,
-                          Vector<uint8_t> const &message,
-                          Vector<uint8_t> &signature);
-
-    virtual status_t verify(Vector<uint8_t> const &sessionId,
-                            Vector<uint8_t> const &keyId,
-                            Vector<uint8_t> const &message,
-                            Vector<uint8_t> const &signature,
-                            bool &match);
-
-    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
-                             String8 const &algorithm,
                              Vector<uint8_t> const &message,
-                             Vector<uint8_t> const &wrappedKey,
-                             Vector<uint8_t> &signature);
+                             Vector<uint8_t> const &signature,
+                             bool &match);
 
-    virtual status_t setListener(const sp<IDrmClient>& listener);
+    virtual DrmStatus signRSA(Vector<uint8_t> const &sessionId,
+                              String8 const &algorithm,
+                              Vector<uint8_t> const &message,
+                              Vector<uint8_t> const &wrappedKey,
+                              Vector<uint8_t> &signature);
 
-    virtual status_t requiresSecureDecoder(const char *mime, bool *required) const;
+    virtual DrmStatus setListener(const sp<IDrmClient>& listener);
 
-    virtual status_t requiresSecureDecoder(const char *mime, DrmPlugin::SecurityLevel securityLevel,
-                                           bool *required) const;
+    virtual DrmStatus requiresSecureDecoder(const char *mime, bool *required) const;
 
-    virtual status_t setPlaybackId(
+    virtual DrmStatus requiresSecureDecoder(const char *mime,
+                                            DrmPlugin::SecurityLevel securityLevel,
+                                            bool *required) const;
+
+    virtual DrmStatus setPlaybackId(
             Vector<uint8_t> const &sessionId,
             const char *playbackId);
 
-    virtual status_t getLogMessages(Vector<drm::V1_4::LogMessage> &logs) const;
-    virtual status_t getSupportedSchemes(std::vector<uint8_t> &schemes) const;
+    virtual DrmStatus getLogMessages(Vector<drm::V1_4::LogMessage> &logs) const;
+    virtual DrmStatus getSupportedSchemes(std::vector<uint8_t> &schemes) const;
 
     // Methods of IDrmPluginListener
     Return<void> sendEvent(EventType eventType,
@@ -238,10 +238,10 @@
 
     std::string reportPluginMetrics() const;
     std::string reportFrameworkMetrics(const std::string& pluginMetrics) const;
-    status_t getPropertyStringInternal(String8 const &name, String8 &value) const;
-    status_t getPropertyByteArrayInternal(String8 const &name,
+    DrmStatus getPropertyStringInternal(String8 const &name, String8 &value) const;
+    DrmStatus getPropertyByteArrayInternal(String8 const &name,
                                           Vector<uint8_t> &value) const;
-    status_t matchMimeTypeAndSecurityLevel(const sp<IDrmFactory> &factory,
+    DrmStatus matchMimeTypeAndSecurityLevel(const sp<IDrmFactory> &factory,
                                            const uint8_t uuid[16],
                                            const String8 &mimeType,
                                            DrmPlugin::SecurityLevel level,
diff --git a/drm/libmediadrm/include/mediadrm/DrmStatus.h b/drm/libmediadrm/include/mediadrm/DrmStatus.h
new file mode 100644
index 0000000..4f29a5a
--- /dev/null
+++ b/drm/libmediadrm/include/mediadrm/DrmStatus.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DRM_STATUS_
+#define DRM_STATUS_
+#include <stdint.h>
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/Errors.h>
+
+namespace android {
+
+struct DrmStatus {
+  public:
+    DrmStatus(status_t status, int32_t cdmerr = 0, int32_t oemerr = 0)
+        : mStatus(status), mCdmErr(cdmerr), mOemErr(oemerr) {}
+    operator status_t() const { return mStatus; }
+    int32_t cdmErr() const { return mCdmErr; }
+    int32_t oemErr() const { return mOemErr; }
+    bool operator==(status_t other) const { return mStatus == other; }
+    bool operator!=(status_t other) const { return mStatus != other; }
+
+  private:
+    status_t mStatus;
+    int32_t mCdmErr{}, mOemErr{};
+};
+
+}  // namespace android
+
+#endif  // DRM_STATUS_
diff --git a/drm/libmediadrm/include/mediadrm/IDrm.h b/drm/libmediadrm/include/mediadrm/IDrm.h
index ee2be6a..3dc7485 100644
--- a/drm/libmediadrm/include/mediadrm/IDrm.h
+++ b/drm/libmediadrm/include/mediadrm/IDrm.h
@@ -16,6 +16,7 @@
 
 #include <media/stagefright/foundation/ABase.h>
 #include <media/drm/DrmAPI.h>
+#include <mediadrm/DrmStatus.h>
 #include <mediadrm/IDrmClient.h>
 #include <mediadrm/IDrmMetricsConsumer.h>
 
@@ -40,24 +41,23 @@
 
     virtual ~IDrm() {}
 
-    virtual status_t initCheck() const = 0;
+    virtual DrmStatus initCheck() const = 0;
 
-    virtual status_t isCryptoSchemeSupported(const uint8_t uuid[16],
-                                             const String8 &mimeType,
-                                             DrmPlugin::SecurityLevel securityLevel,
-                                             bool *result) = 0;
+    virtual DrmStatus isCryptoSchemeSupported(const uint8_t uuid[16], const String8& mimeType,
+                                              DrmPlugin::SecurityLevel securityLevel,
+                                              bool* result) = 0;
 
-    virtual status_t createPlugin(const uint8_t uuid[16],
-                                  const String8 &appPackageName) = 0;
+    virtual DrmStatus createPlugin(const uint8_t uuid[16],
+                                   const String8 &appPackageName) = 0;
 
-    virtual status_t destroyPlugin() = 0;
+    virtual DrmStatus destroyPlugin() = 0;
 
-    virtual status_t openSession(DrmPlugin::SecurityLevel securityLevel,
+    virtual DrmStatus openSession(DrmPlugin::SecurityLevel securityLevel,
             Vector<uint8_t> &sessionId) = 0;
 
-    virtual status_t closeSession(Vector<uint8_t> const &sessionId) = 0;
+    virtual DrmStatus closeSession(Vector<uint8_t> const &sessionId) = 0;
 
-    virtual status_t
+    virtual DrmStatus
         getKeyRequest(Vector<uint8_t> const &sessionId,
                       Vector<uint8_t> const &initData,
                       String8 const &mimeType, DrmPlugin::KeyType keyType,
@@ -65,107 +65,108 @@
                       Vector<uint8_t> &request, String8 &defaultUrl,
                       DrmPlugin::KeyRequestType *keyRequestType) = 0;
 
-    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
-                                        Vector<uint8_t> const &response,
-                                        Vector<uint8_t> &keySetId) = 0;
+    virtual DrmStatus provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                         Vector<uint8_t> const &response,
+                                         Vector<uint8_t> &keySetId) = 0;
 
-    virtual status_t removeKeys(Vector<uint8_t> const &keySetId) = 0;
+    virtual DrmStatus removeKeys(Vector<uint8_t> const &keySetId) = 0;
 
-    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
-                                 Vector<uint8_t> const &keySetId) = 0;
+    virtual DrmStatus restoreKeys(Vector<uint8_t> const &sessionId,
+                                  Vector<uint8_t> const &keySetId) = 0;
 
-    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
-                                    KeyedVector<String8, String8> &infoMap) const = 0;
+    virtual DrmStatus queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                     KeyedVector<String8, String8> &infoMap) const = 0;
 
-    virtual status_t getProvisionRequest(String8 const &certType,
-                                         String8 const &certAuthority,
-                                         Vector<uint8_t> &request,
-                                         String8 &defaulUrl) = 0;
+    virtual DrmStatus getProvisionRequest(String8 const &certType,
+                                          String8 const &certAuthority,
+                                          Vector<uint8_t> &request,
+                                          String8 &defaultUrl) = 0;
 
-    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
-                                              Vector<uint8_t> &certificate,
-                                              Vector<uint8_t> &wrappedKey) = 0;
+    virtual DrmStatus provideProvisionResponse(Vector<uint8_t> const &response,
+                                               Vector<uint8_t> &certificate,
+                                               Vector<uint8_t> &wrappedKey) = 0;
 
-    virtual status_t getSecureStops(List<Vector<uint8_t>> &secureStops) = 0;
-    virtual status_t getSecureStopIds(List<Vector<uint8_t>> &secureStopIds) = 0;
-    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) = 0;
+    virtual DrmStatus getSecureStops(List<Vector<uint8_t>> &secureStops) = 0;
+    virtual DrmStatus getSecureStopIds(List<Vector<uint8_t>> &secureStopIds) = 0;
+    virtual DrmStatus getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) = 0;
 
-    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) = 0;
-    virtual status_t removeSecureStop(Vector<uint8_t> const &ssid) = 0;
-    virtual status_t removeAllSecureStops() = 0;
+    virtual DrmStatus releaseSecureStops(Vector<uint8_t> const &ssRelease) = 0;
+    virtual DrmStatus removeSecureStop(Vector<uint8_t> const &ssid) = 0;
+    virtual DrmStatus removeAllSecureStops() = 0;
 
-    virtual status_t getHdcpLevels(DrmPlugin::HdcpLevel *connectedLevel,
+    virtual DrmStatus getHdcpLevels(DrmPlugin::HdcpLevel *connectedLevel,
             DrmPlugin::HdcpLevel *maxLevel)
             const = 0;
-    virtual status_t getNumberOfSessions(uint32_t *currentSessions,
+    virtual DrmStatus getNumberOfSessions(uint32_t *currentSessions,
             uint32_t *maxSessions) const = 0;
-    virtual status_t getSecurityLevel(Vector<uint8_t> const &sessionId,
+    virtual DrmStatus getSecurityLevel(Vector<uint8_t> const &sessionId,
             DrmPlugin::SecurityLevel *level) const = 0;
 
-    virtual status_t getOfflineLicenseKeySetIds(List<Vector<uint8_t>> &keySetIds) const = 0;
-    virtual status_t removeOfflineLicense(Vector<uint8_t> const &keySetId) = 0;
-    virtual status_t getOfflineLicenseState(Vector<uint8_t> const &keySetId,
+    virtual DrmStatus getOfflineLicenseKeySetIds(List<Vector<uint8_t>> &keySetIds) const = 0;
+    virtual DrmStatus removeOfflineLicense(Vector<uint8_t> const &keySetId) = 0;
+    virtual DrmStatus getOfflineLicenseState(Vector<uint8_t> const &keySetId,
             DrmPlugin::OfflineLicenseState *licenseState) const = 0;
 
-    virtual status_t getPropertyString(String8 const &name, String8 &value) const = 0;
-    virtual status_t getPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> &value) const = 0;
-    virtual status_t setPropertyString(String8 const &name,
-                                       String8 const &value ) const = 0;
-    virtual status_t setPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> const &value) const = 0;
+    virtual DrmStatus getPropertyString(String8 const &name, String8 &value) const = 0;
+    virtual DrmStatus getPropertyByteArray(String8 const &name,
+                                           Vector<uint8_t> &value) const = 0;
+    virtual DrmStatus setPropertyString(String8 const &name,
+                                        String8 const &value ) const = 0;
+    virtual DrmStatus setPropertyByteArray(String8 const &name,
+                                           Vector<uint8_t> const &value) const = 0;
 
-    virtual status_t getMetrics(const sp<IDrmMetricsConsumer> &consumer) = 0;
+    virtual DrmStatus getMetrics(const sp<IDrmMetricsConsumer> &consumer) = 0;
 
-    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
-                                        String8 const &algorithm) = 0;
+    virtual DrmStatus setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                         String8 const &algorithm) = 0;
 
-    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
-                                     String8 const &algorithm) = 0;
+    virtual DrmStatus setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                      String8 const &algorithm) = 0;
 
-    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+    virtual DrmStatus encrypt(Vector<uint8_t> const &sessionId,
+                              Vector<uint8_t> const &keyId,
+                              Vector<uint8_t> const &input,
+                              Vector<uint8_t> const &iv,
+                              Vector<uint8_t> &output) = 0;
+
+    virtual DrmStatus decrypt(Vector<uint8_t> const &sessionId,
+                              Vector<uint8_t> const &keyId,
+                              Vector<uint8_t> const &input,
+                              Vector<uint8_t> const &iv,
+                              Vector<uint8_t> &output) = 0;
+
+    virtual DrmStatus sign(Vector<uint8_t> const &sessionId,
+                           Vector<uint8_t> const &keyId,
+                           Vector<uint8_t> const &message,
+                           Vector<uint8_t> &signature) = 0;
+
+    virtual DrmStatus verify(Vector<uint8_t> const &sessionId,
                              Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output) = 0;
-
-    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output) = 0;
-
-    virtual status_t sign(Vector<uint8_t> const &sessionId,
-                          Vector<uint8_t> const &keyId,
-                          Vector<uint8_t> const &message,
-                          Vector<uint8_t> &signature) = 0;
-
-    virtual status_t verify(Vector<uint8_t> const &sessionId,
-                            Vector<uint8_t> const &keyId,
-                            Vector<uint8_t> const &message,
-                            Vector<uint8_t> const &signature,
-                            bool &match) = 0;
-
-    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
-                             String8 const &algorithm,
                              Vector<uint8_t> const &message,
-                             Vector<uint8_t> const &wrappedKey,
-                             Vector<uint8_t> &signature) = 0;
+                             Vector<uint8_t> const &signature,
+                             bool &match) = 0;
 
-    virtual status_t setListener(const sp<IDrmClient>& listener) = 0;
+    virtual DrmStatus signRSA(Vector<uint8_t> const &sessionId,
+                              String8 const &algorithm,
+                              Vector<uint8_t> const &message,
+                              Vector<uint8_t> const &wrappedKey,
+                              Vector<uint8_t> &signature) = 0;
 
-    virtual status_t requiresSecureDecoder(const char *mime, bool *required) const = 0;
+    virtual DrmStatus setListener(const sp<IDrmClient>& listener) = 0;
 
-    virtual status_t requiresSecureDecoder(const char *mime, DrmPlugin::SecurityLevel securityLevel,
-                                           bool *required) const = 0;
+    virtual DrmStatus requiresSecureDecoder(const char *mime, bool *required) const = 0;
 
-    virtual status_t setPlaybackId(
+    virtual DrmStatus requiresSecureDecoder(const char *mime,
+                                            DrmPlugin::SecurityLevel securityLevel,
+                                            bool *required) const = 0;
+
+    virtual DrmStatus setPlaybackId(
             Vector<uint8_t> const &sessionId,
             const char *playbackId) = 0;
 
-    virtual status_t getLogMessages(Vector<drm::V1_4::LogMessage> &logs) const = 0;
+    virtual DrmStatus getLogMessages(Vector<drm::V1_4::LogMessage> &logs) const = 0;
 
-    virtual status_t getSupportedSchemes(std::vector<uint8_t> &schemes) const = 0;
+    virtual DrmStatus getSupportedSchemes(std::vector<uint8_t> &schemes) const = 0;
 
 protected:
     IDrm() {}
diff --git a/drm/libmediadrm/interface/mediadrm/DrmUtils.h b/drm/libmediadrm/interface/mediadrm/DrmUtils.h
index 05a44c0..e4fc406 100644
--- a/drm/libmediadrm/interface/mediadrm/DrmUtils.h
+++ b/drm/libmediadrm/interface/mediadrm/DrmUtils.h
@@ -22,6 +22,7 @@
 #include <android/hardware/drm/1.4/IDrmPlugin.h>
 #include <android/hardware/drm/1.4/types.h>
 #include <media/stagefright/MediaErrors.h>
+#include <mediadrm/DrmStatus.h>
 #include <utils/Errors.h>  // for status_t
 #include <utils/Log.h>
 #include <utils/String8.h>
@@ -198,7 +199,7 @@
     return toStatusT_1_4(err);
 }
 
-inline status_t statusAidlToStatusT(::ndk::ScopedAStatus &statusAidl) {
+inline DrmStatus statusAidlToDrmStatus(::ndk::ScopedAStatus& statusAidl) {
     if (statusAidl.isOk()) return OK;
     if (statusAidl.getExceptionCode() != EX_SERVICE_SPECIFIC) return DEAD_OBJECT;
     auto status = static_cast<StatusAidl>(statusAidl.getServiceSpecificError());
diff --git a/media/libaudioclient/Android.bp b/media/libaudioclient/Android.bp
index b82754c..37ecd6f 100644
--- a/media/libaudioclient/Android.bp
+++ b/media/libaudioclient/Android.bp
@@ -454,6 +454,7 @@
         "aidl/android/media/IAudioTrack.aidl",
         "aidl/android/media/IAudioTrackCallback.aidl",
 
+        "aidl/android/media/ISoundDose.aidl",
         "aidl/android/media/ISoundDoseCallback.aidl",
         "aidl/android/media/SoundDoseRecord.aidl",
     ],
@@ -553,6 +554,7 @@
     unstable: true,
     local_include_dir: "aidl",
     srcs: [
+        "aidl/android/media/ISoundDose.aidl",
         "aidl/android/media/ISoundDoseCallback.aidl",
         "aidl/android/media/SoundDoseRecord.aidl",
     ],
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index 9cc0ce0..1f107a6 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -2377,13 +2377,18 @@
     return OK;
 }
 
-status_t AudioSystem::registerSoundDoseCallback(const sp<media::ISoundDoseCallback>& callback) {
+status_t AudioSystem::getSoundDoseInterface(const sp<media::ISoundDoseCallback>& callback,
+                                            sp<media::ISoundDose>* soundDose) {
     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
     if (af == nullptr) {
         return PERMISSION_DENIED;
     }
+    if (soundDose == nullptr) {
+        return BAD_VALUE;
+    }
 
-    return af->registerSoundDoseCallback(callback);
+    RETURN_STATUS_IF_ERROR(af->getSoundDoseInterface(callback, soundDose));
+    return OK;
 }
 
 status_t AudioSystem::getDirectPlaybackSupport(const audio_attributes_t *attr,
diff --git a/media/libaudioclient/IAudioFlinger.cpp b/media/libaudioclient/IAudioFlinger.cpp
index f13f626..141c84f 100644
--- a/media/libaudioclient/IAudioFlinger.cpp
+++ b/media/libaudioclient/IAudioFlinger.cpp
@@ -850,9 +850,10 @@
     return NO_ERROR;
 }
 
-status_t AudioFlingerClientAdapter::registerSoundDoseCallback(
-        const sp<media::ISoundDoseCallback> &callback) {
-    return statusTFromBinderStatus(mDelegate->registerSoundDoseCallback(callback));
+status_t AudioFlingerClientAdapter::getSoundDoseInterface(
+        const sp<media::ISoundDoseCallback> &callback,
+        sp<media::ISoundDose>* soundDose) {
+    return statusTFromBinderStatus(mDelegate->getSoundDoseInterface(callback, soundDose));
 }
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -1375,10 +1376,11 @@
     return Status::ok();
 }
 
-Status AudioFlingerServerAdapter::registerSoundDoseCallback(
-        const sp<media::ISoundDoseCallback>& callback)
+Status AudioFlingerServerAdapter::getSoundDoseInterface(
+        const sp<media::ISoundDoseCallback>& callback,
+        sp<media::ISoundDose>* soundDose)
 {
-    return Status::fromStatusT(mDelegate->registerSoundDoseCallback(callback));
+    return Status::fromStatusT(mDelegate->getSoundDoseInterface(callback, soundDose));
 }
 
 } // namespace android
diff --git a/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl b/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl
index 133e363..4383b9e 100644
--- a/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl
+++ b/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl
@@ -35,6 +35,7 @@
 import android.media.IAudioFlingerClient;
 import android.media.IAudioRecord;
 import android.media.IAudioTrack;
+import android.media.ISoundDose;
 import android.media.ISoundDoseCallback;
 import android.media.LatencyMode;
 import android.media.MicrophoneInfoData;
@@ -247,8 +248,11 @@
      */
     LatencyMode[] getSupportedLatencyModes(int output);
 
-    /** Registers the sound dose callback. */
-    oneway void registerSoundDoseCallback(ISoundDoseCallback callback);
+    /**
+     * Registers the sound dose callback and returns the interface for executing
+     * sound dose methods on the audio server.
+     */
+    ISoundDose getSoundDoseInterface(in ISoundDoseCallback callback);
 
     // When adding a new method, please review and update
     // IAudioFlinger.h AudioFlingerServerAdapter::Delegate::TransactionCode
diff --git a/media/libaudioclient/aidl/android/media/ISoundDose.aidl b/media/libaudioclient/aidl/android/media/ISoundDose.aidl
new file mode 100644
index 0000000..f31f091
--- /dev/null
+++ b/media/libaudioclient/aidl/android/media/ISoundDose.aidl
@@ -0,0 +1,37 @@
+/*
+ * Copyright 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.SoundDoseRecord;
+
+/**
+ * Interface used to push the sound dose related information from the
+ * AudioService#SoundDoseHelper to the audio server
+ */
+oneway interface ISoundDose {
+    /** Set a new RS2 value used for momentary exposure warnings. */
+    void setOutputRs2(float rs2Value);
+
+    /**
+     * Resets the native CSD values. This can happen after a crash in the
+     * audio server or after booting when restoring the previous state.
+     * 'currentCsd' represents the restored CSD value and 'records' contains the
+     * dosage values and MELs together with their timestamps that lead to this
+     * CSD.
+     */
+    void resetCsd(float currentCsd, in SoundDoseRecord[] records);
+}
diff --git a/media/libaudioclient/include/media/AudioSystem.h b/media/libaudioclient/include/media/AudioSystem.h
index 163adcb..e04b82e 100644
--- a/media/libaudioclient/include/media/AudioSystem.h
+++ b/media/libaudioclient/include/media/AudioSystem.h
@@ -28,6 +28,7 @@
 #include <android/media/BnAudioPolicyServiceClient.h>
 #include <android/media/EffectDescriptor.h>
 #include <android/media/INativeSpatializerCallback.h>
+#include <android/media/ISoundDose.h>
 #include <android/media/ISoundDoseCallback.h>
 #include <android/media/ISpatializer.h>
 #include <android/media/RecordClientInfo.h>
@@ -588,8 +589,15 @@
                                      const AudioDeviceTypeAddrVector &devices,
                                      bool *canBeSpatialized);
 
-    /** Registers the sound dose callback with the audio server. */
-    static status_t registerSoundDoseCallback(const sp<media::ISoundDoseCallback>& callback);
+    /**
+     * Registers the sound dose callback with the audio server and returns the ISoundDose
+     * interface.
+     *
+     * \param callback to send messages to the audio server
+     * \param soundDose binder to send messages to the AudioService
+     **/
+    static status_t getSoundDoseInterface(const sp<media::ISoundDoseCallback>& callback,
+                                          sp<media::ISoundDose>* soundDose);
 
     /**
      * Query how the direct playback is currently supported on the device.
diff --git a/media/libaudioclient/include/media/IAudioFlinger.h b/media/libaudioclient/include/media/IAudioFlinger.h
index c6474f5..6c89862 100644
--- a/media/libaudioclient/include/media/IAudioFlinger.h
+++ b/media/libaudioclient/include/media/IAudioFlinger.h
@@ -55,6 +55,7 @@
 #include "android/media/IAudioTrackCallback.h"
 #include "android/media/IEffect.h"
 #include "android/media/IEffectClient.h"
+#include "android/media/ISoundDose.h"
 #include "android/media/ISoundDoseCallback.h"
 #include "android/media/OpenInputRequest.h"
 #include "android/media/OpenInputResponse.h"
@@ -371,7 +372,8 @@
     virtual status_t getSupportedLatencyModes(audio_io_handle_t output,
             std::vector<audio_latency_mode_t>* modes) = 0;
 
-    virtual status_t registerSoundDoseCallback(const sp<media::ISoundDoseCallback>& callback) = 0;
+    virtual status_t getSoundDoseInterface(const sp<media::ISoundDoseCallback>& callback,
+                                           sp<media::ISoundDose>* soundDose) = 0;
 };
 
 /**
@@ -478,7 +480,8 @@
             audio_latency_mode_t mode) override;
     status_t getSupportedLatencyModes(
             audio_io_handle_t output, std::vector<audio_latency_mode_t>* modes) override;
-    status_t registerSoundDoseCallback(const sp<media::ISoundDoseCallback>& callback) override;
+    status_t getSoundDoseInterface(const sp<media::ISoundDoseCallback>& callback,
+                                   sp<media::ISoundDose>* soundDose) override;
 
 private:
     const sp<media::IAudioFlingerService> mDelegate;
@@ -570,7 +573,7 @@
             SET_DEVICE_CONNECTED_STATE = media::BnAudioFlingerService::TRANSACTION_setDeviceConnectedState,
             SET_REQUESTED_LATENCY_MODE = media::BnAudioFlingerService::TRANSACTION_setRequestedLatencyMode,
             GET_SUPPORTED_LATENCY_MODES = media::BnAudioFlingerService::TRANSACTION_getSupportedLatencyModes,
-            REGISTER_SOUND_DOSE_CALLBACK = media::BnAudioFlingerService::TRANSACTION_registerSoundDoseCallback,
+            GET_SOUND_DOSE_INTERFACE = media::BnAudioFlingerService::TRANSACTION_getSoundDoseInterface,
         };
 
     protected:
@@ -695,7 +698,8 @@
     Status setRequestedLatencyMode(int output, media::LatencyMode mode) override;
     Status getSupportedLatencyModes(int output,
             std::vector<media::LatencyMode>* _aidl_return) override;
-    Status registerSoundDoseCallback(const sp<media::ISoundDoseCallback>& callback) override;
+    Status getSoundDoseInterface(const sp<media::ISoundDoseCallback>& callback,
+                                 sp<media::ISoundDose>* _aidl_return) override;
 private:
     const sp<AudioFlingerServerAdapter::Delegate> mDelegate;
 };
diff --git a/media/libeffects/lvm/wrapper/Aidl/BundleContext.cpp b/media/libeffects/lvm/wrapper/Aidl/BundleContext.cpp
index 2defa4e..fa26e60 100644
--- a/media/libeffects/lvm/wrapper/Aidl/BundleContext.cpp
+++ b/media/libeffects/lvm/wrapper/Aidl/BundleContext.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <cstddef>
 #define LOG_TAG "BundleContext"
 #include <Utils.h>
 
@@ -23,8 +24,9 @@
 namespace aidl::android::hardware::audio::effect {
 
 RetCode BundleContext::init() {
+    std::lock_guard lg(mMutex);
     // init with pre-defined preset NORMAL
-    for (int i = 0; i < lvm::MAX_NUM_BANDS; i++) {
+    for (std::size_t i = 0; i < lvm::MAX_NUM_BANDS; i++) {
         mBandGaindB[i] = lvm::kSoftPresets[0 /* normal */][i];
     }
 
@@ -57,6 +59,7 @@
 }
 
 void BundleContext::deInit() {
+    std::lock_guard lg(mMutex);
     if (mInstance) {
         LVM_DelInstanceHandle(&mInstance);
         mInstance = nullptr;
@@ -65,14 +68,17 @@
 
 RetCode BundleContext::enable() {
     LVM_ControlParams_t params;
-    RETURN_VALUE_IF(LVM_SUCCESS != LVM_GetControlParameters(mInstance, &params),
-                    RetCode::ERROR_EFFECT_LIB_ERROR, "failGetControlParams");
-    if (mType == lvm::BundleEffectType::EQUALIZER) {
-        LOG(DEBUG) << __func__ << " enable bundle EQ";
-        params.EQNB_OperatingMode = LVM_EQNB_ON;
+    {
+        std::lock_guard lg(mMutex);
+        RETURN_VALUE_IF(LVM_SUCCESS != LVM_GetControlParameters(mInstance, &params),
+                        RetCode::ERROR_EFFECT_LIB_ERROR, "failGetControlParams");
+        if (mType == lvm::BundleEffectType::EQUALIZER) {
+            LOG(DEBUG) << __func__ << " enable bundle EQ";
+            params.EQNB_OperatingMode = LVM_EQNB_ON;
+        }
+        RETURN_VALUE_IF(LVM_SUCCESS != LVM_SetControlParameters(mInstance, &params),
+                        RetCode::ERROR_EFFECT_LIB_ERROR, "failSetControlParams");
     }
-    RETURN_VALUE_IF(LVM_SUCCESS != LVM_SetControlParameters(mInstance, &params),
-                    RetCode::ERROR_EFFECT_LIB_ERROR, "failSetControlParams");
     mEnabled = true;
     // LvmEffect_limitLevel(pContext);
     return RetCode::SUCCESS;
@@ -80,14 +86,17 @@
 
 RetCode BundleContext::disable() {
     LVM_ControlParams_t params;
-    RETURN_VALUE_IF(LVM_SUCCESS != LVM_GetControlParameters(mInstance, &params),
-                    RetCode::ERROR_EFFECT_LIB_ERROR, "failGetControlParams");
-    if (mType == lvm::BundleEffectType::EQUALIZER) {
-        LOG(DEBUG) << __func__ << " disable bundle EQ";
-        params.EQNB_OperatingMode = LVM_EQNB_OFF;
+    {
+        std::lock_guard lg(mMutex);
+        RETURN_VALUE_IF(LVM_SUCCESS != LVM_GetControlParameters(mInstance, &params),
+                        RetCode::ERROR_EFFECT_LIB_ERROR, "failGetControlParams");
+        if (mType == lvm::BundleEffectType::EQUALIZER) {
+            LOG(DEBUG) << __func__ << " disable bundle EQ";
+            params.EQNB_OperatingMode = LVM_EQNB_OFF;
+        }
+        RETURN_VALUE_IF(LVM_SUCCESS != LVM_SetControlParameters(mInstance, &params),
+                        RetCode::ERROR_EFFECT_LIB_ERROR, "failSetControlParams");
     }
-    RETURN_VALUE_IF(LVM_SUCCESS != LVM_SetControlParameters(mInstance, &params),
-                    RetCode::ERROR_EFFECT_LIB_ERROR, "failSetControlParams");
     mEnabled = false;
     // LvmEffect_limitLevel(pContext);
     return RetCode::SUCCESS;
@@ -148,27 +157,29 @@
     // android::VolumeSetVolumeLevel(pContext, (int16_t)(maxdB * 100));
     LOG(DEBUG) << __func__ << " pandB: " << pandB << " maxdB " << maxdB;
 
-    RETURN_VALUE_IF(LVM_SUCCESS != LVM_GetControlParameters(mInstance, &params),
-                    RetCode::ERROR_EFFECT_LIB_ERROR, "");
+    {
+        std::lock_guard lg(mMutex);
+        RETURN_VALUE_IF(LVM_SUCCESS != LVM_GetControlParameters(mInstance, &params),
+                        RetCode::ERROR_EFFECT_LIB_ERROR, "");
+        params.VC_Balance = pandB;
 
-    params.VC_Balance = pandB;
-
-    RETURN_VALUE_IF(LVM_SUCCESS != LVM_SetControlParameters(mInstance, &params),
-                    RetCode::ERROR_EFFECT_LIB_ERROR, "");
-
+        RETURN_VALUE_IF(LVM_SUCCESS != LVM_SetControlParameters(mInstance, &params),
+                        RetCode::ERROR_EFFECT_LIB_ERROR, "");
+    }
     mVolumeStereo = volume;
     return RetCode::SUCCESS;
 }
 
-RetCode BundleContext::setEqualizerPreset(const int presetIdx) {
+RetCode BundleContext::setEqualizerPreset(const std::size_t presetIdx) {
     if (presetIdx < 0 || presetIdx >= lvm::MAX_NUM_PRESETS) {
         return RetCode::ERROR_ILLEGAL_PARAMETER;
     }
 
     std::vector<Equalizer::BandLevel> bandLevels;
     bandLevels.reserve(lvm::MAX_NUM_BANDS);
-    for (int i = 0; i < lvm::MAX_NUM_BANDS; i++) {
-        bandLevels.emplace_back(Equalizer::BandLevel{i, lvm::kSoftPresets[presetIdx][i]});
+    for (std::size_t i = 0; i < lvm::MAX_NUM_BANDS; i++) {
+        bandLevels.emplace_back(
+                Equalizer::BandLevel{static_cast<int32_t>(i), lvm::kSoftPresets[presetIdx][i]});
     }
 
     RetCode ret = updateControlParameter(bandLevels);
@@ -197,8 +208,8 @@
 std::vector<Equalizer::BandLevel> BundleContext::getEqualizerBandLevels() const {
     std::vector<Equalizer::BandLevel> bandLevels;
     bandLevels.reserve(lvm::MAX_NUM_BANDS);
-    for (int i = 0; i < lvm::MAX_NUM_BANDS; i++) {
-        bandLevels.emplace_back(Equalizer::BandLevel{i, mBandGaindB[i]});
+    for (std::size_t i = 0; i < lvm::MAX_NUM_BANDS; i++) {
+        bandLevels.emplace_back(Equalizer::BandLevel{static_cast<int32_t>(i), mBandGaindB[i]});
     }
     return bandLevels;
 }
@@ -221,17 +232,20 @@
     }
 
     LVM_ControlParams_t params;
-    RETURN_VALUE_IF(LVM_SUCCESS != LVM_GetControlParameters(mInstance, &params),
-                    RetCode::ERROR_EFFECT_LIB_ERROR, " getControlParamFailed");
+    {
+        std::lock_guard lg(mMutex);
+        RETURN_VALUE_IF(LVM_SUCCESS != LVM_GetControlParameters(mInstance, &params),
+                        RetCode::ERROR_EFFECT_LIB_ERROR, " getControlParamFailed");
 
-    for (int i = 0; i < lvm::MAX_NUM_BANDS; i++) {
-        params.pEQNB_BandDefinition[i].Frequency = lvm::kPresetsFrequencies[i];
-        params.pEQNB_BandDefinition[i].QFactor = lvm::kPresetsQFactors[i];
-        params.pEQNB_BandDefinition[i].Gain = tempLevel[i];
+        for (std::size_t i = 0; i < lvm::MAX_NUM_BANDS; i++) {
+            params.pEQNB_BandDefinition[i].Frequency = lvm::kPresetsFrequencies[i];
+            params.pEQNB_BandDefinition[i].QFactor = lvm::kPresetsQFactors[i];
+            params.pEQNB_BandDefinition[i].Gain = tempLevel[i];
+        }
+
+        RETURN_VALUE_IF(LVM_SUCCESS != LVM_SetControlParameters(mInstance, &params),
+                        RetCode::ERROR_EFFECT_LIB_ERROR, " setControlParamFailed");
     }
-
-    RETURN_VALUE_IF(LVM_SUCCESS != LVM_SetControlParameters(mInstance, &params),
-                    RetCode::ERROR_EFFECT_LIB_ERROR, " setControlParamFailed");
     mBandGaindB = tempLevel;
     LOG(INFO) << __func__ << " update bandGain to " << ::android::internal::ToString(mBandGaindB);
 
@@ -296,7 +310,7 @@
     static LVM_EQNB_BandDef_t* BandDefs = []() {
         static LVM_EQNB_BandDef_t tempDefs[lvm::MAX_NUM_BANDS];
         /* N-Band Equaliser parameters */
-        for (int i = 0; i < lvm::MAX_NUM_BANDS; i++) {
+        for (std::size_t i = 0; i < lvm::MAX_NUM_BANDS; i++) {
             tempDefs[i].Frequency = lvm::kPresetsFrequencies[i];
             tempDefs[i].QFactor = lvm::kPresetsQFactors[i];
             tempDefs[i].Gain = lvm::kSoftPresets[0/* normal */][i];
@@ -323,4 +337,26 @@
     return HeadroomBandDef;
 }
 
+IEffect::Status BundleContext::lvmProcess(float* in, float* out, int samples) {
+    IEffect::Status status = {EX_NULL_POINTER, 0, 0};
+
+    auto frameSize = getInputFrameSize();
+    RETURN_VALUE_IF(0== frameSize, status, "nullContext");
+
+    LOG(DEBUG) << __func__ << " start processing";
+    LVM_UINT16 frames = samples * sizeof(float) / frameSize;
+    LVM_ReturnStatus_en lvmStatus;
+    {
+        std::lock_guard lg(mMutex);
+        lvmStatus = LVM_Process(mInstance, in, out, frames, 0);
+    }
+
+    if (lvmStatus != LVM_SUCCESS) {
+        LOG(ERROR) << __func__ << lvmStatus;
+        return {EX_UNSUPPORTED_OPERATION, 0, 0};
+    }
+    LOG(DEBUG) << __func__ << " done processing";
+    return {STATUS_OK, samples, samples};
+}
+
 }  // namespace aidl::android::hardware::audio::effect
diff --git a/media/libeffects/lvm/wrapper/Aidl/BundleContext.h b/media/libeffects/lvm/wrapper/Aidl/BundleContext.h
index 616ab78..7b38e66 100644
--- a/media/libeffects/lvm/wrapper/Aidl/BundleContext.h
+++ b/media/libeffects/lvm/wrapper/Aidl/BundleContext.h
@@ -17,7 +17,9 @@
 #pragma once
 
 #include <android-base/logging.h>
+#include <android-base/thread_annotations.h>
 #include <array>
+#include <cstddef>
 
 #include "BundleTypes.h"
 #include "effect-impl/EffectContext.h"
@@ -43,8 +45,6 @@
     RetCode enable();
     RetCode disable();
 
-    LVM_Handle_t getLvmInstance() const { return mInstance; }
-
     void setSampleRate (const int sampleRate) { mSampleRate = sampleRate; }
     int getSampleRate() const { return mSampleRate; }
 
@@ -55,18 +55,21 @@
         return mChMask;
     }
 
-    RetCode setEqualizerPreset(const int presetIdx);
+    RetCode setEqualizerPreset(const std::size_t presetIdx);
     int getEqualizerPreset() const { return mCurPresetIdx; }
     RetCode setEqualizerBandLevels(const std::vector<Equalizer::BandLevel>& bandLevels);
     std::vector<Equalizer::BandLevel> getEqualizerBandLevels() const;
 
     RetCode setVolumeStereo(const Parameter::VolumeStereo& volumeStereo) override;
-    Parameter::VolumeStereo getVolumeStereo() override { return mVolumeStereo; };
+    Parameter::VolumeStereo getVolumeStereo() override { return mVolumeStereo; }
+
+    IEffect::Status lvmProcess(float* in, float* out, int samples);
 
   private:
+    std::mutex mMutex;
     const lvm::BundleEffectType mType;
     bool mEnabled = false;
-    LVM_Handle_t mInstance = nullptr;
+    LVM_Handle_t mInstance GUARDED_BY(mMutex);
 
     aidl::android::media::audio::common::AudioDeviceDescription mVirtualizerForcedDevice;
     aidl::android::media::audio::common::AudioChannelLayout mChMask;
diff --git a/media/libeffects/lvm/wrapper/Aidl/EffectBundleAidl.cpp b/media/libeffects/lvm/wrapper/Aidl/EffectBundleAidl.cpp
index 48ba598..b1bf04c 100644
--- a/media/libeffects/lvm/wrapper/Aidl/EffectBundleAidl.cpp
+++ b/media/libeffects/lvm/wrapper/Aidl/EffectBundleAidl.cpp
@@ -93,8 +93,8 @@
 }
 
 ndk::ScopedAStatus EffectBundleAidl::setParameterCommon(const Parameter& param) {
-    std::lock_guard lg(mMutex);
     RETURN_IF(!mContext, EX_NULL_POINTER, "nullContext");
+
     auto tag = param.getTag();
     switch (tag) {
         case Parameter::common:
@@ -133,7 +133,7 @@
     auto tag = specific.getTag();
     RETURN_IF(tag != Parameter::Specific::equalizer, EX_ILLEGAL_ARGUMENT,
               "specificParamNotSupported");
-    RETURN_IF(mContext == nullptr, EX_NULL_POINTER , "nullContext");
+    RETURN_IF(!mContext, EX_NULL_POINTER, "nullContext");
 
     auto& eq = specific.get<Parameter::Specific::equalizer>();
     auto eqTag = eq.getTag();
@@ -174,7 +174,6 @@
 
 ndk::ScopedAStatus EffectBundleAidl::getParameterEqualizer(const Equalizer::Tag& tag,
                                                            Parameter::Specific* specific) {
-    std::lock_guard lg(mMutex);
     RETURN_IF(!mContext, EX_NULL_POINTER, "nullContext");
     Equalizer eqParam;
     switch (tag) {
@@ -200,12 +199,16 @@
 std::shared_ptr<EffectContext> EffectBundleAidl::createContext(const Parameter::Common& common) {
     if (mContext) {
         LOG(DEBUG) << __func__ << " context already exist";
-        return mContext;
+    } else {
+        // GlobalSession is a singleton
+        mContext = GlobalSession::getGlobalSession().createSession(mType, 1 /* statusFmqDepth */,
+                                                                   common);
     }
 
-    // GlobalSession is a singleton
-    mContext =
-            GlobalSession::getGlobalSession().createSession(mType, 1 /* statusFmqDepth */, common);
+    return mContext;
+}
+
+std::shared_ptr<EffectContext> EffectBundleAidl::getContext() {
     return mContext;
 }
 
@@ -217,29 +220,30 @@
     return RetCode::SUCCESS;
 }
 
+ndk::ScopedAStatus EffectBundleAidl::commandImpl(CommandId command) {
+    RETURN_IF(!mContext, EX_NULL_POINTER, "nullContext");
+    switch (command) {
+        case CommandId::START:
+            mContext->enable();
+            break;
+        case CommandId::STOP:
+            mContext->disable();
+            break;
+        case CommandId::RESET:
+            mContext->disable();
+            mContext->resetBuffer();
+            break;
+        default:
+            LOG(ERROR) << __func__ << " commandId " << toString(command) << " not supported";
+            return ndk::ScopedAStatus::fromExceptionCodeWithMessage(EX_ILLEGAL_ARGUMENT,
+                                                                    "commandIdNotSupported");
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
 // Processing method running in EffectWorker thread.
 IEffect::Status EffectBundleAidl::effectProcessImpl(float* in, float* out, int sampleToProcess) {
-    LOG(DEBUG) << __func__ << " in " << in << " out " << out << " sample " << sampleToProcess;
-    if (!mContext) {
-        LOG(ERROR) << __func__ << " nullContext";
-        return {EX_NULL_POINTER, 0, 0};
-    }
-
-    auto frameSize = mContext->getInputFrameSize();
-    if (0 == frameSize) {
-        LOG(ERROR) << __func__ << " frameSizeIs0";
-        return {EX_ILLEGAL_ARGUMENT, 0, 0};
-    }
-
-    LOG(DEBUG) << __func__ << " start processing";
-    LVM_UINT16 frames = sampleToProcess * sizeof(float) / frameSize;
-    LVM_ReturnStatus_en lvmStatus = LVM_Process(mContext->getLvmInstance(), in, out, frames, 0);
-    if (lvmStatus != LVM_SUCCESS) {
-        LOG(ERROR) << __func__ << lvmStatus;
-        return {EX_UNSUPPORTED_OPERATION, 0, 0};
-    }
-    LOG(DEBUG) << __func__ << " done processing";
-    return {STATUS_OK, sampleToProcess, sampleToProcess};
+    return mContext->lvmProcess(in, out, sampleToProcess);
 }
 
 }  // namespace aidl::android::hardware::audio::effect
diff --git a/media/libeffects/lvm/wrapper/Aidl/EffectBundleAidl.h b/media/libeffects/lvm/wrapper/Aidl/EffectBundleAidl.h
index 5fdf301..9e2f656 100644
--- a/media/libeffects/lvm/wrapper/Aidl/EffectBundleAidl.h
+++ b/media/libeffects/lvm/wrapper/Aidl/EffectBundleAidl.h
@@ -18,7 +18,6 @@
 #include <functional>
 #include <map>
 #include <memory>
-#include <mutex>
 
 #include <aidl/android/hardware/audio/effect/BnEffect.h>
 #include <android-base/logging.h>
@@ -42,28 +41,21 @@
     ndk::ScopedAStatus setParameterSpecific(const Parameter::Specific& specific) override;
     ndk::ScopedAStatus getParameterSpecific(const Parameter::Id& id,
                                             Parameter::Specific* specific) override;
-    IEffect::Status effectProcessImpl(float *in, float *out, int process) override;
 
     std::shared_ptr<EffectContext> createContext(const Parameter::Common& common) override;
+    std::shared_ptr<EffectContext> getContext() override;
     RetCode releaseContext() override;
 
-    ndk::ScopedAStatus commandStart() override {
-        mContext->enable();
-        return ndk::ScopedAStatus::ok();
-    }
-    ndk::ScopedAStatus commandStop() override {
-        mContext->disable();
-        return ndk::ScopedAStatus::ok();
-    }
-    ndk::ScopedAStatus commandReset() override {
-            mContext->disable();
-            return ndk::ScopedAStatus::ok();
-    }
+    IEffect::Status effectProcessImpl(float* in, float* out, int samples) override;
+
+    ndk::ScopedAStatus commandImpl(CommandId command) override;
+
+    std::string getEffectName() override { return "EqualizerBundle"; }
 
   private:
+    std::shared_ptr<BundleContext> mContext;
     const Descriptor* mDescriptor;
     lvm::BundleEffectType mType = lvm::BundleEffectType::EQUALIZER;
-    std::shared_ptr<BundleContext> mContext;
 
     IEffect::Status status(binder_status_t status, size_t consumed, size_t produced);
     ndk::ScopedAStatus getParameterEqualizer(const Equalizer::Tag& tag,
diff --git a/media/libeffects/lvm/wrapper/Aidl/GlobalSession.h b/media/libeffects/lvm/wrapper/Aidl/GlobalSession.h
index 9226274..d31763b 100644
--- a/media/libeffects/lvm/wrapper/Aidl/GlobalSession.h
+++ b/media/libeffects/lvm/wrapper/Aidl/GlobalSession.h
@@ -21,6 +21,7 @@
 #include <unordered_map>
 
 #include <android-base/logging.h>
+#include <android-base/thread_annotations.h>
 
 #include "BundleContext.h"
 #include "BundleTypes.h"
@@ -40,7 +41,10 @@
         return instance;
     }
 
-    bool isSessionIdExist(int sessionId) const { return mSessionMap.count(sessionId); }
+    bool isSessionIdExist(int sessionId) {
+        std::lock_guard lg(mMutex);
+        return mSessionMap.count(sessionId);
+    }
 
     static bool findBundleTypeInList(std::vector<std::shared_ptr<BundleContext>>& list,
                                      const lvm::BundleEffectType& type, bool remove = false) {
diff --git a/media/libeffects/lvm/wrapper/Android.bp b/media/libeffects/lvm/wrapper/Android.bp
index a32188a..aef9295 100644
--- a/media/libeffects/lvm/wrapper/Android.bp
+++ b/media/libeffects/lvm/wrapper/Android.bp
@@ -122,6 +122,9 @@
     shared_libs: [
         "liblog",
     ],
+    cflags: [
+        "-Wthread-safety",
+    ],
     visibility: [
         "//hardware/interfaces/audio/aidl/default",
     ],
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index c307c94..cf7e135 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -232,7 +232,7 @@
 BINDER_METHOD_ENTRY(setDeviceConnectedState) \
 BINDER_METHOD_ENTRY(setRequestedLatencyMode) \
 BINDER_METHOD_ENTRY(getSupportedLatencyModes) \
-BINDER_METHOD_ENTRY(registerSoundDoseCallback) \
+BINDER_METHOD_ENTRY(getSoundDoseInterface) \
 
 // singleton for Binder Method Statistics for IAudioFlinger
 static auto& getIAudioFlingerStatistics() {
@@ -1667,8 +1667,13 @@
     return thread->getSupportedLatencyModes(modes);
 }
 
-status_t AudioFlinger::registerSoundDoseCallback(const sp<media::ISoundDoseCallback>& callback) {
-    mMelReporter->registerSoundDoseCallback(callback);
+status_t AudioFlinger::getSoundDoseInterface(const sp<media::ISoundDoseCallback>& callback,
+                                             sp<media::ISoundDose>* soundDose) {
+    if (soundDose == nullptr) {
+        return BAD_VALUE;
+    }
+
+    *soundDose = mMelReporter->getSoundDoseInterface(callback);
     return NO_ERROR;
 }
 
@@ -4638,7 +4643,7 @@
         case TransactionCode::SET_MASTER_VOLUME:
         case TransactionCode::SET_MASTER_MUTE:
         case TransactionCode::MASTER_MUTE:
-        case TransactionCode::REGISTER_SOUND_DOSE_CALLBACK:
+        case TransactionCode::GET_SOUND_DOSE_INTERFACE:
         case TransactionCode::SET_MODE:
         case TransactionCode::SET_MIC_MUTE:
         case TransactionCode::SET_LOW_RAM_DEVICE:
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 333c57b..4d3c074 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -306,7 +306,8 @@
     virtual status_t getSupportedLatencyModes(audio_io_handle_t output,
             std::vector<audio_latency_mode_t>* modes);
 
-    virtual status_t registerSoundDoseCallback(const sp<media::ISoundDoseCallback>& callback);
+    virtual status_t getSoundDoseInterface(const sp<media::ISoundDoseCallback>& callback,
+                                           sp<media::ISoundDose>* soundDose);
 
     status_t onTransactWrapper(TransactionCode code, const Parcel& data, uint32_t flags,
         const std::function<status_t()>& delegate) override;
diff --git a/services/audioflinger/MelReporter.cpp b/services/audioflinger/MelReporter.cpp
index 279f30d..8cc7eab 100644
--- a/services/audioflinger/MelReporter.cpp
+++ b/services/audioflinger/MelReporter.cpp
@@ -108,10 +108,10 @@
     }
 }
 
-void AudioFlinger::MelReporter::registerSoundDoseCallback(
+sp<media::ISoundDose> AudioFlinger::MelReporter::getSoundDoseInterface(
         const sp<media::ISoundDoseCallback>& callback) {
-    // no need to lock since registerSoundDoseCallback is synchronized
-    mSoundDoseManager.registerSoundDoseCallback(callback);
+    // no need to lock since getSoundDoseInterface is synchronized
+    return mSoundDoseManager.getSoundDoseInterface(callback);
 }
 
 std::string AudioFlinger::MelReporter::dump() {
diff --git a/services/audioflinger/MelReporter.h b/services/audioflinger/MelReporter.h
index 3625a86..f73b3d6 100644
--- a/services/audioflinger/MelReporter.h
+++ b/services/audioflinger/MelReporter.h
@@ -44,7 +44,7 @@
     // For now only support internal MelReporting
     [[nodiscard]] bool isHalReportingEnabled() const { return false; }
 
-    void registerSoundDoseCallback(const sp<media::ISoundDoseCallback>& callback);
+    sp<media::ISoundDose> getSoundDoseInterface(const sp<media::ISoundDoseCallback>& callback);
 
     std::string dump();
 
diff --git a/services/audioflinger/sounddose/Android.bp b/services/audioflinger/sounddose/Android.bp
index 6149472..0e409d3 100644
--- a/services/audioflinger/sounddose/Android.bp
+++ b/services/audioflinger/sounddose/Android.bp
@@ -20,6 +20,7 @@
         "audioflinger-aidl-cpp",
         "libaudioutils",
         "libbase",
+        "libbinder",
         "liblog",
         "libutils",
     ],
diff --git a/services/audioflinger/sounddose/SoundDoseManager.cpp b/services/audioflinger/sounddose/SoundDoseManager.cpp
index 474d0ce..46f310c 100644
--- a/services/audioflinger/sounddose/SoundDoseManager.cpp
+++ b/services/audioflinger/sounddose/SoundDoseManager.cpp
@@ -52,6 +52,7 @@
             (processor = streamProcessor->second.promote())) {
         ALOGV("%s: found callback for stream %d", __func__, streamHandle);
         processor->setDeviceId(deviceId);
+        processor->setOutputRs2(mRs2Value);
         return processor;
     } else {
         ALOGV("%s: creating new callback for device %d", __func__, streamHandle);
@@ -66,12 +67,14 @@
     ALOGV("%s", __func__);
     std::lock_guard _l(mLock);
 
+    mRs2Value = rs2Value;
+
     for (auto& streamProcessor : mActiveProcessors) {
         sp<audio_utils::MelProcessor> processor = streamProcessor.second.promote();
         if (processor != nullptr) {
-            status_t result = processor->setOutputRs2(rs2Value);
+            status_t result = processor->setOutputRs2(mRs2Value);
             if (result != NO_ERROR) {
-                ALOGW("%s: could not set RS2 value %f for stream %d", __func__, rs2Value,
+                ALOGW("%s: could not set RS2 value %f for stream %d", __func__, mRs2Value,
                       streamProcessor.first);
             }
         }
@@ -86,6 +89,51 @@
     }
 }
 
+void SoundDoseManager::SoundDose::binderDied(__unused const wp<IBinder>& who) {
+    ALOGV("%s", __func__);
+
+    auto soundDoseManager = mSoundDoseManager.promote();
+    if (soundDoseManager != nullptr) {
+        soundDoseManager->resetSoundDose();
+    }
+}
+
+binder::Status SoundDoseManager::SoundDose::setOutputRs2(float value) {
+    ALOGV("%s", __func__);
+    auto soundDoseManager = mSoundDoseManager.promote();
+    if (soundDoseManager != nullptr) {
+        soundDoseManager->setOutputRs2(value);
+    }
+    return binder::Status::ok();
+}
+
+binder::Status SoundDoseManager::SoundDose::resetCsd(
+        float currentCsd, const std::vector<media::SoundDoseRecord>& records) {
+    ALOGV("%s", __func__);
+    auto soundDoseManager = mSoundDoseManager.promote();
+    if (soundDoseManager != nullptr) {
+        soundDoseManager->resetCsd(currentCsd, records);
+    }
+    return binder::Status::ok();
+}
+
+void SoundDoseManager::resetSoundDose() {
+    std::lock_guard lock(mLock);
+    mSoundDose = nullptr;
+}
+
+void SoundDoseManager::resetCsd(float currentCsd,
+                                const std::vector<media::SoundDoseRecord>& records) {
+    std::lock_guard lock(mLock);
+    std::vector<audio_utils::CsdRecord> resetRecords;
+    for (const auto& record : records) {
+        resetRecords.emplace_back(record.timestamp, record.duration, record.value,
+                                  record.averageMel);
+    }
+
+    mMelAggregator->reset(currentCsd, resetRecords);
+}
+
 void SoundDoseManager::onNewMelValues(const std::vector<float>& mels, size_t offset, size_t length,
                                       audio_port_handle_t deviceId) const {
     ALOGV("%s", __func__);
@@ -120,28 +168,31 @@
 
 sp<media::ISoundDoseCallback> SoundDoseManager::getSoundDoseCallback() const {
     std::lock_guard _l(mLock);
-    return mSoundDoseCallback;
+    if (mSoundDose == nullptr) {
+        return nullptr;
+    }
+
+    return mSoundDose->mSoundDoseCallback;
 }
 
 void SoundDoseManager::onMomentaryExposure(float currentMel, audio_port_handle_t deviceId) const {
     ALOGV("%s: Momentary exposure for device %d triggered: %f MEL", __func__, deviceId, currentMel);
 
-    sp<media::ISoundDoseCallback> soundDoseCallback;
-    {
-        std::lock_guard _l(mLock);
-        soundDoseCallback = mSoundDoseCallback;
-    }
-
+    auto soundDoseCallback = getSoundDoseCallback();
     if (soundDoseCallback != nullptr) {
-        mSoundDoseCallback->onMomentaryExposure(currentMel, deviceId);
+        soundDoseCallback->onMomentaryExposure(currentMel, deviceId);
     }
 }
 
-void SoundDoseManager::registerSoundDoseCallback(const sp<media::ISoundDoseCallback>& callback) {
+sp<media::ISoundDose> SoundDoseManager::getSoundDoseInterface(
+        const sp<media::ISoundDoseCallback>& callback) {
     ALOGV("%s: Register ISoundDoseCallback", __func__);
 
     std::lock_guard _l(mLock);
-    mSoundDoseCallback = callback;
+    if (mSoundDose == nullptr) {
+        mSoundDose = sp<SoundDose>::make(this, callback);
+    }
+    return mSoundDose;
 }
 
 std::string SoundDoseManager::dump() const {
diff --git a/services/audioflinger/sounddose/SoundDoseManager.h b/services/audioflinger/sounddose/SoundDoseManager.h
index 9a95e8a..b0aa5d6 100644
--- a/services/audioflinger/sounddose/SoundDoseManager.h
+++ b/services/audioflinger/sounddose/SoundDoseManager.h
@@ -17,10 +17,11 @@
 
 #pragma once
 
+#include <android/media/BnSoundDose.h>
 #include <android/media/ISoundDoseCallback.h>
 #include <audio_utils/MelAggregator.h>
 #include <audio_utils/MelProcessor.h>
-#include <utils/Errors.h>
+#include <binder/Status.h>
 #include <mutex>
 #include <unordered_map>
 
@@ -69,10 +70,15 @@
      */
     void setOutputRs2(float rs2Value);
 
-    std::string dump() const;
+    /**
+     * \brief Registers the interface for passing callbacks to the AudioService and gets
+     * the ISoundDose interface.
+     *
+     * \returns the sound dose binder to send commands to the SoundDoseManager
+     **/
+    sp<media::ISoundDose> getSoundDoseInterface(const sp<media::ISoundDoseCallback>& callback);
 
-    /** \brief Registers the interface for passing callbacks to the AudioService. */
-    void registerSoundDoseCallback(const sp<media::ISoundDoseCallback>& callback);
+    std::string dump() const;
 
     // used for testing
     size_t getCachedMelRecordsSize() const;
@@ -86,9 +92,32 @@
 
     void onMomentaryExposure(float currentMel, audio_port_handle_t deviceId) const override;
 
-  private:
-    sp<media::ISoundDoseCallback> getSoundDoseCallback() const;
+private:
+    class SoundDose : public media::BnSoundDose,
+                      public IBinder::DeathRecipient {
+    public:
+        SoundDose(SoundDoseManager* manager, const sp<media::ISoundDoseCallback>& callback)
+            : mSoundDoseManager(manager),
+              mSoundDoseCallback(callback) {};
 
+        /** IBinder::DeathRecipient. Listen to the death of ISoundDoseCallback. */
+        virtual void binderDied(const wp<IBinder>& who);
+
+        /** BnSoundDose override */
+        binder::Status setOutputRs2(float value) override;
+        binder::Status resetCsd(float currentCsd,
+                                const std::vector<media::SoundDoseRecord>& records) override;
+
+        wp<SoundDoseManager> mSoundDoseManager;
+        const sp<media::ISoundDoseCallback> mSoundDoseCallback;
+    };
+
+    void resetSoundDose();
+
+    void resetCsd(float currentCsd, const std::vector<media::SoundDoseRecord>& records);
+
+    sp<media::ISoundDoseCallback> getSoundDoseCallback() const;
+    
     mutable std::mutex mLock;
 
     // no need for lock since MelAggregator is thread-safe
@@ -99,7 +128,7 @@
 
     float mRs2Value GUARDED_BY(mLock);
 
-    sp<media::ISoundDoseCallback> mSoundDoseCallback GUARDED_BY(mLock);
+    sp<SoundDose> mSoundDose GUARDED_BY(mLock);
 };
 
 }  // namespace android
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 346191f..5d5e4cd 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -3107,6 +3107,10 @@
     status_t status = NO_ERROR;
     IVolumeCurves &curves = getVolumeCurves(attributes);
     VolumeSource vs = toVolumeSource(group);
+    // AUDIO_STREAM_BLUETOOTH_SCO is only used for volume control so we remap
+    // to AUDIO_STREAM_VOICE_CALL to match with relevant playback activity
+    VolumeSource activityVs = (vs == toVolumeSource(AUDIO_STREAM_BLUETOOTH_SCO, false)) ?
+            toVolumeSource(AUDIO_STREAM_VOICE_CALL, false) : vs;
     product_strategy_t strategy = mEngine->getProductStrategyForAttributes(attributes);
 
     status = setVolumeCurveIndex(index, device, curves);
@@ -3145,7 +3149,8 @@
         if (curDevices.erase(AUDIO_DEVICE_OUT_SPEAKER_SAFE)) {
             curDevices.insert(AUDIO_DEVICE_OUT_SPEAKER);
         }
-        if (!(desc->isActive(vs) || isInCall())) {
+
+        if (!(desc->isActive(activityVs) || isInCallOrScreening())) {
             continue;
         }
         if (device != AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME &&
@@ -3179,7 +3184,7 @@
                 bool isPreempted = false;
                 bool isHigherPriority = productStrategy < strategy;
                 for (const auto &client : activeClients) {
-                    if (isHigherPriority && (client->volumeSource() != vs)) {
+                    if (isHigherPriority && (client->volumeSource() != activityVs)) {
                         ALOGV("%s: Strategy=%d (\nrequester:\n"
                               " group %d, volumeGroup=%d attributes=%s)\n"
                               " higher priority source active:\n"
@@ -3192,7 +3197,7 @@
                         break;
                     }
                     // However, continue for loop to ensure no higher prio clients running on output
-                    if (client->volumeSource() == vs) {
+                    if (client->volumeSource() == activityVs) {
                         applyVolume = true;
                     }
                 }
@@ -7707,14 +7712,18 @@
     return is_state_in_call(state);
 }
 
-bool AudioPolicyManager::isCallAudioAccessible()
-{
+bool AudioPolicyManager::isCallAudioAccessible() const {
     audio_mode_t mode = mEngine->getPhoneState();
     return (mode == AUDIO_MODE_IN_CALL)
             || (mode == AUDIO_MODE_CALL_SCREEN)
             || (mode == AUDIO_MODE_CALL_REDIRECT);
 }
 
+bool AudioPolicyManager::isInCallOrScreening() const {
+    audio_mode_t mode = mEngine->getPhoneState();
+    return isStateInCall(mode) || mode == AUDIO_MODE_CALL_SCREEN;
+}
+
 void AudioPolicyManager::cleanUpForDevice(const sp<DeviceDescriptor>& deviceDesc)
 {
     for (ssize_t i = (ssize_t)mAudioSources.size() - 1; i >= 0; i--)  {
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index f9cf9f5..034093c 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -617,7 +617,9 @@
         // true if given state represents a device in a telephony or VoIP call
         virtual bool isStateInCall(int state) const;
         // true if playback to call TX or capture from call RX is possible
-        bool isCallAudioAccessible();
+        bool isCallAudioAccessible() const;
+        // true if device is in a telephony or VoIP call or call screening is active
+        bool isInCallOrScreening() const;
 
         // when a device is connected, checks if an open output can be routed
         // to this device. If none is open, tries to open one of the available outputs.