diff --git a/media/libmediaplayerservice/DeathNotifier.cpp b/media/libmediaplayerservice/DeathNotifier.cpp
index ab22f67..241c52d 100644
--- a/media/libmediaplayerservice/DeathNotifier.cpp
+++ b/media/libmediaplayerservice/DeathNotifier.cpp
@@ -17,11 +17,18 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "MediaPlayerService-DeathNotifier"
 #include <android-base/logging.h>
+#include <map>
 
 #include "DeathNotifier.h"
 
 namespace android {
 
+// Only dereference the cookie if it's valid (if it's in this set)
+// Only used with ndk
+static uintptr_t sCookieKeyCounter = 0;
+static std::map<uintptr_t, wp<DeathNotifier::DeathRecipient>> sCookies;
+static std::mutex sCookiesMutex;
+
 class DeathNotifier::DeathRecipient :
         public IBinder::DeathRecipient,
         public hardware::hidl_death_recipient {
@@ -44,13 +51,32 @@
     }
 
     static void OnBinderDied(void *cookie) {
-        DeathRecipient *thiz = (DeathRecipient *)cookie;
-        thiz->mNotify();
+        std::unique_lock<std::mutex> guard(sCookiesMutex);
+        if (auto it = sCookies.find(reinterpret_cast<uintptr_t>(cookie)); it != sCookies.end()) {
+            sp<DeathRecipient> recipient = it->second.promote();
+            sCookies.erase(it);
+            guard.unlock();
+
+            if (recipient) {
+                LOG(INFO) << "Notifying DeathRecipient from OnBinderDied.";
+                recipient->mNotify();
+            } else {
+                LOG(INFO) <<
+                    "Tried to notify DeathRecipient from OnBinderDied but could not promote.";
+            }
+        }
     }
 
     AIBinder_DeathRecipient *getNdkRecipient() {
         return mNdkRecipient.get();;
     }
+    ~DeathRecipient() {
+        // lock must be taken so object is not used in OnBinderDied"
+        std::lock_guard<std::mutex> guard(sCookiesMutex);
+        sCookies.erase(mCookieKey);
+    }
+
+    uintptr_t mCookieKey;
 
 private:
     Notify mNotify;
@@ -73,8 +99,15 @@
       : mService{std::in_place_index<3>, service},
         mDeathRecipient{new DeathRecipient(notify)} {
     mDeathRecipient->initNdk();
+    {
+        std::lock_guard<std::mutex> guard(sCookiesMutex);
+        mDeathRecipient->mCookieKey = sCookieKeyCounter++;
+        sCookies[mDeathRecipient->mCookieKey] = mDeathRecipient;
+    }
     AIBinder_linkToDeath(
-            service.get(), mDeathRecipient->getNdkRecipient(), mDeathRecipient.get());
+            service.get(),
+            mDeathRecipient->getNdkRecipient(),
+            reinterpret_cast<void*>(mDeathRecipient->mCookieKey));
 }
 
 DeathNotifier::DeathNotifier(DeathNotifier&& other)
@@ -94,10 +127,11 @@
         std::get<2>(mService)->unlinkToDeath(mDeathRecipient);
         break;
     case 3:
+
         AIBinder_unlinkToDeath(
                 std::get<3>(mService).get(),
                 mDeathRecipient->getNdkRecipient(),
-                mDeathRecipient.get());
+                reinterpret_cast<void*>(mDeathRecipient->mCookieKey));
         break;
     default:
         CHECK(false) << "Corrupted service type during destruction.";
diff --git a/media/libmediaplayerservice/DeathNotifier.h b/media/libmediaplayerservice/DeathNotifier.h
index 24e45a3..0fd7c65 100644
--- a/media/libmediaplayerservice/DeathNotifier.h
+++ b/media/libmediaplayerservice/DeathNotifier.h
@@ -37,10 +37,11 @@
     DeathNotifier(DeathNotifier&& other);
     ~DeathNotifier();
 
+    class DeathRecipient;
+
 private:
     std::variant<std::monostate, sp<IBinder>, sp<HBase>, ::ndk::SpAIBinder> mService;
 
-    class DeathRecipient;
     sp<DeathRecipient> mDeathRecipient;
 };
 
diff --git a/media/libmediaplayerservice/StagefrightRecorder.cpp b/media/libmediaplayerservice/StagefrightRecorder.cpp
index 3ab32f0..f0e1b9e 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.cpp
+++ b/media/libmediaplayerservice/StagefrightRecorder.cpp
@@ -2119,6 +2119,11 @@
 
     if (tsLayers > 1) {
         uint32_t bLayers = std::min(2u, tsLayers - 1); // use up-to 2 B-layers
+        // TODO(b/341121900): Remove this once B frames are handled correctly in screen recorder
+        // use case in case of mic only
+        if (mAudioSource == AUDIO_SOURCE_MIC && mVideoSource == VIDEO_SOURCE_SURFACE) {
+            bLayers = 0;
+        }
         uint32_t pLayers = tsLayers - bLayers;
         format->setString(
                 "ts-schema", AStringPrintf("android.generic.%u+%u", pLayers, bLayers));
diff --git a/media/module/libmediatranscoding/TranscodingResourcePolicy.cpp b/media/module/libmediatranscoding/TranscodingResourcePolicy.cpp
index af53f64..43a4628 100644
--- a/media/module/libmediatranscoding/TranscodingResourcePolicy.cpp
+++ b/media/module/libmediatranscoding/TranscodingResourcePolicy.cpp
@@ -21,6 +21,7 @@
 #include <aidl/android/media/IResourceObserverService.h>
 #include <android/binder_manager.h>
 #include <android/binder_process.h>
+#include <map>
 #include <media/TranscodingResourcePolicy.h>
 #include <utils/Log.h>
 
@@ -66,11 +67,31 @@
     TranscodingResourcePolicy* mOwner;
 };
 
+// cookie used for death recipients. The TranscodingResourcePolicy
+// that this cookie is associated with must outlive this cookie. It is
+// either deleted by binderDied, or in unregisterSelf which is also called
+// in the destructor of TranscodingResourcePolicy
+class TranscodingResourcePolicyCookie {
+ public:
+    TranscodingResourcePolicyCookie(TranscodingResourcePolicy* policy) : mPolicy(policy) {}
+    TranscodingResourcePolicyCookie() = delete;
+    TranscodingResourcePolicy* mPolicy;
+};
+
+static std::map<uintptr_t, std::unique_ptr<TranscodingResourcePolicyCookie>> sCookies;
+static uintptr_t sCookieKeyCounter;
+static std::mutex sCookiesMutex;
+
 // static
 void TranscodingResourcePolicy::BinderDiedCallback(void* cookie) {
-    TranscodingResourcePolicy* owner = reinterpret_cast<TranscodingResourcePolicy*>(cookie);
-    if (owner != nullptr) {
-        owner->unregisterSelf();
+    std::lock_guard<std::mutex> guard(sCookiesMutex);
+    if (auto it = sCookies.find(reinterpret_cast<uintptr_t>(cookie)); it != sCookies.end()) {
+        ALOGI("BinderDiedCallback unregistering TranscodingResourcePolicy");
+        auto policy = reinterpret_cast<TranscodingResourcePolicy*>(it->second->mPolicy);
+        if (policy) {
+            policy->unregisterSelf();
+        }
+        sCookies.erase(it);
     }
     // TODO(chz): retry to connecting to IResourceObserverService after failure.
     // Also need to have back-up logic if IResourceObserverService is offline for
@@ -88,6 +109,23 @@
 }
 
 TranscodingResourcePolicy::~TranscodingResourcePolicy() {
+    {
+        std::lock_guard<std::mutex> guard(sCookiesMutex);
+
+        // delete all of the cookies associated with this TranscodingResourcePolicy
+        // instance since they are holding pointers to this object that will no
+        // longer be valid.
+        std::erase_if(sCookies, [this](const auto& cookieEntry) {
+            auto const& [key, cookie] = cookieEntry;
+            std::lock_guard guard(mCookieKeysLock);
+            if (const auto& it = mCookieKeys.find(key); it != mCookieKeys.end()) {
+                // No longer need to track this cookie
+                mCookieKeys.erase(key);
+                return true;
+            }
+            return false;
+        });
+    }
     unregisterSelf();
 }
 
@@ -123,7 +161,17 @@
         return;
     }
 
-    AIBinder_linkToDeath(binder.get(), mDeathRecipient.get(), reinterpret_cast<void*>(this));
+    std::unique_ptr<TranscodingResourcePolicyCookie> cookie =
+            std::make_unique<TranscodingResourcePolicyCookie>(this);
+    void* cookiePtr = static_cast<void*>(cookie.get());
+    uintptr_t cookieKey = sCookieKeyCounter++;
+    sCookies.emplace(cookieKey, std::move(cookie));
+    {
+        std::lock_guard guard(mCookieKeysLock);
+        mCookieKeys.insert(cookieKey);
+    }
+
+    AIBinder_linkToDeath(binder.get(), mDeathRecipient.get(), reinterpret_cast<void*>(cookieKey));
 
     ALOGD("@@@ registered observer");
     mRegistered = true;
@@ -141,7 +189,6 @@
     ::ndk::SpAIBinder binder = mService->asBinder();
     if (binder.get() != nullptr) {
         Status status = mService->unregisterObserver(mObserver);
-        AIBinder_unlinkToDeath(binder.get(), mDeathRecipient.get(), reinterpret_cast<void*>(this));
     }
 
     mService = nullptr;
diff --git a/media/module/libmediatranscoding/include/media/TranscodingResourcePolicy.h b/media/module/libmediatranscoding/include/media/TranscodingResourcePolicy.h
index ee232e7..4d762b5 100644
--- a/media/module/libmediatranscoding/include/media/TranscodingResourcePolicy.h
+++ b/media/module/libmediatranscoding/include/media/TranscodingResourcePolicy.h
@@ -22,6 +22,7 @@
 #include <utils/Condition.h>
 
 #include <mutex>
+#include <set>
 namespace aidl {
 namespace android {
 namespace media {
@@ -48,6 +49,8 @@
     bool mRegistered GUARDED_BY(mRegisteredLock);
     std::shared_ptr<IResourceObserverService> mService GUARDED_BY(mRegisteredLock);
     std::shared_ptr<ResourceObserver> mObserver;
+    mutable std::mutex mCookieKeysLock;
+    std::set<uintptr_t> mCookieKeys;
 
     mutable std::mutex mCallbackLock;
     std::weak_ptr<ResourcePolicyCallbackInterface> mResourcePolicyCallback
@@ -59,6 +62,7 @@
     static void BinderDiedCallback(void* cookie);
 
     void registerSelf();
+    // must delete the associated TranscodingResourcePolicyCookie any time this is called
     void unregisterSelf();
     void onResourceAvailable(pid_t pid);
 };  // class TranscodingUidPolicy