diff --git a/media/codec2/sfplugin/CCodecBufferChannel.cpp b/media/codec2/sfplugin/CCodecBufferChannel.cpp
index 39f3f35..6ba129f 100644
--- a/media/codec2/sfplugin/CCodecBufferChannel.cpp
+++ b/media/codec2/sfplugin/CCodecBufferChannel.cpp
@@ -826,10 +826,8 @@
     bool secure = mComponent->getName().find(".secure") != std::string::npos;
 
     std::shared_ptr<C2AllocatorStore> allocatorStore = GetCodec2PlatformAllocatorStore();
-    int poolMask = property_get_int32(
-            "debug.stagefright.c2-poolmask",
-            1 << C2PlatformAllocatorStore::ION |
-            1 << C2PlatformAllocatorStore::BUFFERQUEUE);
+    int poolMask = GetCodec2PoolMask();
+    C2PlatformAllocatorStore::id_t preferredLinearId = GetPreferredLinearAllocatorId(poolMask);
 
     if (inputFormat != nullptr) {
         bool graphic = (iStreamFormat.value == C2BufferData::GRAPHIC);
@@ -839,7 +837,7 @@
 
             // set default allocator ID.
             pools->inputAllocatorId = (graphic) ? C2PlatformAllocatorStore::GRALLOC
-                                                : C2PlatformAllocatorStore::ION;
+                                                : preferredLinearId;
 
             // query C2PortAllocatorsTuning::input from component. If an allocator ID is obtained
             // from component, create the input block pool with given ID. Otherwise, use default IDs.
@@ -978,7 +976,7 @@
 
             // set default allocator ID.
             pools->outputAllocatorId = (graphic) ? C2PlatformAllocatorStore::GRALLOC
-                                                 : C2PlatformAllocatorStore::ION;
+                                                 : preferredLinearId;
 
             // query C2PortAllocatorsTuning::output from component, or use default allocator if
             // unsuccessful.
diff --git a/media/codec2/vndk/C2Buffer.cpp b/media/codec2/vndk/C2Buffer.cpp
index 2d99b53..0b08f31 100644
--- a/media/codec2/vndk/C2Buffer.cpp
+++ b/media/codec2/vndk/C2Buffer.cpp
@@ -22,14 +22,17 @@
 #include <map>
 #include <mutex>
 
-#include <C2AllocatorIon.h>
+#include <C2AllocatorBlob.h>
 #include <C2AllocatorGralloc.h>
+#include <C2AllocatorIon.h>
 #include <C2BufferPriv.h>
 #include <C2BlockInternal.h>
+#include <C2PlatformSupport.h>
 #include <bufferpool/ClientManager.h>
 
 namespace {
 
+using android::C2AllocatorBlob;
 using android::C2AllocatorGralloc;
 using android::C2AllocatorIon;
 using android::hardware::media::bufferpool::BufferPoolData;
@@ -393,10 +396,29 @@
 std::shared_ptr<C2LinearBlock> _C2BlockFactory::CreateLinearBlock(
         const C2Handle *handle) {
     // TODO: get proper allocator? and mutex?
-    static std::unique_ptr<C2AllocatorIon> sAllocator = std::make_unique<C2AllocatorIon>(0);
+    static std::unique_ptr<C2Allocator> sAllocator = []{
+        std::unique_ptr<C2Allocator> allocator;
+        if (android::GetPreferredLinearAllocatorId(android::GetCodec2PoolMask()) ==
+                android::C2PlatformAllocatorStore::BLOB) {
+            allocator = std::make_unique<C2AllocatorBlob>(android::C2PlatformAllocatorStore::BLOB);
+        } else {
+            allocator = std::make_unique<C2AllocatorIon>(android::C2PlatformAllocatorStore::ION);
+        }
+        return allocator;
+    }();
+
+    if (sAllocator == nullptr)
+        return nullptr;
+
+    bool isValidHandle = false;
+    if (sAllocator->getId() == android::C2PlatformAllocatorStore::BLOB) {
+        isValidHandle = C2AllocatorBlob::isValid(handle);
+    } else {
+        isValidHandle = C2AllocatorIon::isValid(handle);
+    }
 
     std::shared_ptr<C2LinearAllocation> alloc;
-    if (C2AllocatorIon::isValid(handle)) {
+    if (isValidHandle) {
         c2_status_t err = sAllocator->priorLinearAllocation(handle, &alloc);
         if (err == C2_OK) {
             std::shared_ptr<C2LinearBlock> block = _C2BlockFactory::CreateLinearBlock(alloc);
@@ -409,10 +431,29 @@
 std::shared_ptr<C2LinearBlock> _C2BlockFactory::CreateLinearBlock(
         const C2Handle *cHandle, const std::shared_ptr<BufferPoolData> &data) {
     // TODO: get proper allocator? and mutex?
-    static std::unique_ptr<C2AllocatorIon> sAllocator = std::make_unique<C2AllocatorIon>(0);
+    static std::unique_ptr<C2Allocator> sAllocator = []{
+        std::unique_ptr<C2Allocator> allocator;
+        if (android::GetPreferredLinearAllocatorId(android::GetCodec2PoolMask()) ==
+                android::C2PlatformAllocatorStore::BLOB) {
+            allocator = std::make_unique<C2AllocatorBlob>(android::C2PlatformAllocatorStore::BLOB);
+        } else {
+            allocator = std::make_unique<C2AllocatorIon>(android::C2PlatformAllocatorStore::ION);
+        }
+        return allocator;
+    }();
+
+    if (sAllocator == nullptr)
+        return nullptr;
+
+    bool isValidHandle = false;
+    if (sAllocator->getId() == android::C2PlatformAllocatorStore::BLOB) {
+        isValidHandle = C2AllocatorBlob::isValid(cHandle);
+    } else {
+        isValidHandle = C2AllocatorIon::isValid(cHandle);
+    }
 
     std::shared_ptr<C2LinearAllocation> alloc;
-    if (C2AllocatorIon::isValid(cHandle)) {
+    if (isValidHandle) {
         c2_status_t err = sAllocator->priorLinearAllocation(cHandle, &alloc);
         const std::shared_ptr<C2PooledBlockPoolData> poolData =
                 std::make_shared<C2PooledBlockPoolData>(data);
diff --git a/media/codec2/vndk/C2Store.cpp b/media/codec2/vndk/C2Store.cpp
index 5b2bd7b..03810e9 100644
--- a/media/codec2/vndk/C2Store.cpp
+++ b/media/codec2/vndk/C2Store.cpp
@@ -18,6 +18,7 @@
 #define LOG_NDEBUG 0
 #include <utils/Log.h>
 
+#include <C2AllocatorBlob.h>
 #include <C2AllocatorGralloc.h>
 #include <C2AllocatorIon.h>
 #include <C2BufferPriv.h>
@@ -26,6 +27,7 @@
 #include <C2Config.h>
 #include <C2PlatformStorePluginLoader.h>
 #include <C2PlatformSupport.h>
+#include <cutils/properties.h>
 #include <util/C2InterfaceHelper.h>
 
 #include <dlfcn.h>
@@ -71,6 +73,9 @@
     ~C2PlatformAllocatorStoreImpl() override = default;
 
 private:
+    /// returns a shared-singleton blob allocator (gralloc-backed)
+    std::shared_ptr<C2Allocator> fetchBlobAllocator();
+
     /// returns a shared-singleton ion allocator
     std::shared_ptr<C2Allocator> fetchIonAllocator();
 
@@ -93,10 +98,12 @@
 c2_status_t C2PlatformAllocatorStoreImpl::fetchAllocator(
         id_t id, std::shared_ptr<C2Allocator> *const allocator) {
     allocator->reset();
+    if (id == C2AllocatorStore::DEFAULT_LINEAR) {
+        id = GetPreferredLinearAllocatorId(GetCodec2PoolMask());
+    }
     switch (id) {
     // TODO: should we implement a generic registry for all, and use that?
     case C2PlatformAllocatorStore::ION:
-    case C2AllocatorStore::DEFAULT_LINEAR:
         *allocator = fetchIonAllocator();
         break;
 
@@ -109,6 +116,10 @@
         *allocator = fetchBufferQueueAllocator();
         break;
 
+    case C2PlatformAllocatorStore::BLOB:
+        *allocator = fetchBlobAllocator();
+        break;
+
     default:
         // Try to create allocator from platform store plugins.
         c2_status_t res =
@@ -218,6 +229,18 @@
     return allocator;
 }
 
+std::shared_ptr<C2Allocator> C2PlatformAllocatorStoreImpl::fetchBlobAllocator() {
+    static std::mutex mutex;
+    static std::weak_ptr<C2Allocator> blobAllocator;
+    std::lock_guard<std::mutex> lock(mutex);
+    std::shared_ptr<C2Allocator> allocator = blobAllocator.lock();
+    if (allocator == nullptr) {
+        allocator = std::make_shared<C2AllocatorBlob>(C2PlatformAllocatorStore::BLOB);
+        blobAllocator = allocator;
+    }
+    return allocator;
+}
+
 std::shared_ptr<C2Allocator> C2PlatformAllocatorStoreImpl::fetchGrallocAllocator() {
     static std::mutex mutex;
     static std::weak_ptr<C2Allocator> grallocAllocator;
@@ -288,6 +311,18 @@
     return gPreferredComponentStore ? gPreferredComponentStore : GetCodec2PlatformComponentStore();
 }
 
+int GetCodec2PoolMask() {
+    return property_get_int32(
+            "debug.stagefright.c2-poolmask",
+            1 << C2PlatformAllocatorStore::ION |
+            1 << C2PlatformAllocatorStore::BUFFERQUEUE);
+}
+
+C2PlatformAllocatorStore::id_t GetPreferredLinearAllocatorId(int poolMask) {
+    return ((poolMask >> C2PlatformAllocatorStore::BLOB) & 1) ? C2PlatformAllocatorStore::BLOB
+                                                              : C2PlatformAllocatorStore::ION;
+}
+
 namespace {
 
 class _C2BlockPoolCache {
@@ -304,11 +339,25 @@
         std::shared_ptr<C2Allocator> allocator;
         c2_status_t res = C2_NOT_FOUND;
 
+        if (allocatorId == C2AllocatorStore::DEFAULT_LINEAR) {
+            allocatorId = GetPreferredLinearAllocatorId(GetCodec2PoolMask());
+        }
         switch(allocatorId) {
             case C2PlatformAllocatorStore::ION:
-            case C2AllocatorStore::DEFAULT_LINEAR:
                 res = allocatorStore->fetchAllocator(
-                        C2AllocatorStore::DEFAULT_LINEAR, &allocator);
+                        C2PlatformAllocatorStore::ION, &allocator);
+                if (res == C2_OK) {
+                    std::shared_ptr<C2BlockPool> ptr =
+                            std::make_shared<C2PooledBlockPool>(
+                                    allocator, poolId);
+                    *pool = ptr;
+                    mBlockPools[poolId] = ptr;
+                    mComponents[poolId] = component;
+                }
+                break;
+            case C2PlatformAllocatorStore::BLOB:
+                res = allocatorStore->fetchAllocator(
+                        C2PlatformAllocatorStore::BLOB, &allocator);
                 if (res == C2_OK) {
                     std::shared_ptr<C2BlockPool> ptr =
                             std::make_shared<C2PooledBlockPool>(
diff --git a/media/codec2/vndk/include/C2PlatformSupport.h b/media/codec2/vndk/include/C2PlatformSupport.h
index f31282c..a14e0d3 100644
--- a/media/codec2/vndk/include/C2PlatformSupport.h
+++ b/media/codec2/vndk/include/C2PlatformSupport.h
@@ -66,6 +66,15 @@
         BUFFERQUEUE,
 
         /**
+         * ID of the gralloc backed platform allocator for linear blob buffer.
+         *
+         * C2Handle layout is not public. Use C2AllocatorGralloc::UnwrapNativeCodec2GrallocHandle
+         * to get the underlying gralloc handle from a C2Handle, and WrapNativeCodec2GrallocHandle
+         * to create a C2Handle from a gralloc handle - for C2Allocator::priorAllocation.
+         */
+        BLOB,
+
+        /**
          * ID of indicating the end of platform allocator definition.
          *
          * \note always put this macro in the last place.
@@ -131,6 +140,20 @@
  */
 void SetPreferredCodec2ComponentStore(std::shared_ptr<C2ComponentStore> store);
 
+/**
+ * Returns the pool mask.
+ * \retval the default pool mask should be adopted if it could not be obtained from property
+ *         "debug.stagefright.c2-poolmask"
+ */
+int GetCodec2PoolMask();
+
+/**
+ * Returns the preferred linear buffer allocator id from param poolMask.
+ * C2PlatformAllocatorStore::ION should be chosen as fallback allocator if BLOB is not enabled from
+ * param poolMask.
+ */
+C2PlatformAllocatorStore::id_t GetPreferredLinearAllocatorId(int poolMask);
+
 } // namespace android
 
 #endif // STAGEFRIGHT_CODEC2_PLATFORM_SUPPORT_H_