diff --git a/camera/CameraMetadata.cpp b/camera/CameraMetadata.cpp
index 135384a..7e4c91e 100644
--- a/camera/CameraMetadata.cpp
+++ b/camera/CameraMetadata.cpp
@@ -22,6 +22,7 @@
 
 #include <binder/Parcel.h>
 #include <camera/CameraMetadata.h>
+#include <camera_metadata_hidden.h>
 
 namespace android {
 
@@ -872,5 +873,8 @@
     return OK;
 }
 
+metadata_vendor_id_t CameraMetadata::getVendorId() {
+    return get_camera_metadata_vendor_id(mBuffer);
+}
 
 }; // namespace android
diff --git a/camera/VendorTagDescriptor.cpp b/camera/VendorTagDescriptor.cpp
index d713d2d..24fa912 100644
--- a/camera/VendorTagDescriptor.cpp
+++ b/camera/VendorTagDescriptor.cpp
@@ -660,6 +660,16 @@
     return sGlobalVendorTagDescriptorCache;
 }
 
+bool VendorTagDescriptorCache::isVendorCachePresent(metadata_vendor_id_t vendorId) {
+    Mutex::Autolock al(sLock);
+    if ((sGlobalVendorTagDescriptorCache.get() != nullptr) &&
+            (sGlobalVendorTagDescriptorCache->getVendorIdsAndTagDescriptors().find(vendorId) !=
+             sGlobalVendorTagDescriptorCache->getVendorIdsAndTagDescriptors().end())) {
+        return true;
+    }
+    return false;
+}
+
 extern "C" {
 
 int vendor_tag_descriptor_get_tag_count(const vendor_tag_ops_t* /*v*/) {
diff --git a/camera/include/camera/CameraMetadata.h b/camera/include/camera/CameraMetadata.h
index 9d1b5c7..83abdb6 100644
--- a/camera/include/camera/CameraMetadata.h
+++ b/camera/include/camera/CameraMetadata.h
@@ -237,6 +237,11 @@
     static status_t getTagFromName(const char *name,
             const VendorTagDescriptor* vTags, uint32_t *tag);
 
+    /**
+     * Return the current vendor tag id associated with this metadata.
+     */
+    metadata_vendor_id_t getVendorId();
+
   private:
     camera_metadata_t *mBuffer;
     mutable bool       mLocked;
diff --git a/camera/include/camera/VendorTagDescriptor.h b/camera/include/camera/VendorTagDescriptor.h
index b2fbf3a..b3440d5 100644
--- a/camera/include/camera/VendorTagDescriptor.h
+++ b/camera/include/camera/VendorTagDescriptor.h
@@ -249,6 +249,12 @@
      */
     static void clearGlobalVendorTagCache();
 
+    /**
+     * Return true if given vendor id is present in the vendor tag caches, return
+     * false otherwise.
+     */
+    static bool isVendorCachePresent(metadata_vendor_id_t vendorId);
+
 };
 
 } /* namespace android */