diff --git a/drm/libmediadrm/Android.bp b/drm/libmediadrm/Android.bp
index 55a32ae..b49ec75 100644
--- a/drm/libmediadrm/Android.bp
+++ b/drm/libmediadrm/Android.bp
@@ -51,6 +51,7 @@
         "android.hardware.drm@1.1",
         "android.hardware.drm@1.2",
         "android.hardware.drm@1.3",
+        "android.hardware.drm@1.4",
         "libhidlallocatorutils",
         "libhidlbase",
     ],
diff --git a/drm/libmediadrm/DrmHal.cpp b/drm/libmediadrm/DrmHal.cpp
index f218041..295c459 100644
--- a/drm/libmediadrm/DrmHal.cpp
+++ b/drm/libmediadrm/DrmHal.cpp
@@ -387,6 +387,7 @@
     mPlugin.clear();
     mPluginV1_1.clear();
     mPluginV1_2.clear();
+    mPluginV1_4.clear();
 }
 
 std::vector<sp<IDrmFactory>> DrmHal::makeDrmFactories() {
@@ -622,6 +623,7 @@
                 mPlugin = plugin;
                 mPluginV1_1 = drm::V1_1::IDrmPlugin::castFrom(mPlugin);
                 mPluginV1_2 = drm::V1_2::IDrmPlugin::castFrom(mPlugin);
+                mPluginV1_4 = drm::V1_4::IDrmPlugin::castFrom(mPlugin);
                 break;
             }
         }
@@ -642,6 +644,7 @@
             mPlugin.clear();
             mPluginV1_1.clear();
             mPluginV1_2.clear();
+            mPluginV1_4.clear();
         }
     }
 
@@ -1564,4 +1567,22 @@
     }
 }
 
+bool DrmHal::requiresSecureDecoder(const char *mime) const {
+    Mutex::Autolock autoLock(mLock);
+    if (mPluginV1_4 == NULL) {
+        return false;
+    }
+    return mPluginV1_4->requiresSecureDecoderDefault(hidl_string(mime));
+}
+
+bool DrmHal::requiresSecureDecoder(const char *mime,
+        DrmPlugin::SecurityLevel securityLevel) const {
+    Mutex::Autolock autoLock(mLock);
+    if (mPluginV1_4 == NULL) {
+        return false;
+    }
+    auto hLevel = toHidlSecurityLevel(securityLevel);
+    return mPluginV1_4->requiresSecureDecoder(hidl_string(mime), hLevel);
+}
+
 }  // namespace android
diff --git a/drm/libmediadrm/fuzzer/Android.bp b/drm/libmediadrm/fuzzer/Android.bp
index 6f2d054..5e389b4 100644
--- a/drm/libmediadrm/fuzzer/Android.bp
+++ b/drm/libmediadrm/fuzzer/Android.bp
@@ -47,6 +47,7 @@
         "android.hardware.drm@1.1",
         "android.hardware.drm@1.2",
         "android.hardware.drm@1.3",
+        "android.hardware.drm@1.4",
         "libhidlallocatorutils",
         "libhidlbase",
     ],
diff --git a/drm/libmediadrm/include/mediadrm/DrmHal.h b/drm/libmediadrm/include/mediadrm/DrmHal.h
index 3b4639b..4705de0 100644
--- a/drm/libmediadrm/include/mediadrm/DrmHal.h
+++ b/drm/libmediadrm/include/mediadrm/DrmHal.h
@@ -25,7 +25,9 @@
 #include <android/hardware/drm/1.2/IDrmFactory.h>
 #include <android/hardware/drm/1.2/IDrmPlugin.h>
 #include <android/hardware/drm/1.2/IDrmPluginListener.h>
+#include <android/hardware/drm/1.4/IDrmPlugin.h>
 
+#include <media/drm/DrmAPI.h>
 #include <mediadrm/DrmMetrics.h>
 #include <mediadrm/DrmSessionManager.h>
 #include <mediadrm/IDrm.h>
@@ -176,6 +178,12 @@
 
     virtual status_t setListener(const sp<IDrmClient>& listener);
 
+    virtual bool requiresSecureDecoder(const char *mime) const;
+
+    virtual bool requiresSecureDecoder(
+            const char *mime,
+            DrmPlugin::SecurityLevel securityLevel) const;
+
     // Methods of IDrmPluginListener
     Return<void> sendEvent(EventType eventType,
             const hidl_vec<uint8_t>& sessionId, const hidl_vec<uint8_t>& data);
@@ -202,6 +210,7 @@
     sp<IDrmPlugin> mPlugin;
     sp<drm::V1_1::IDrmPlugin> mPluginV1_1;
     sp<drm::V1_2::IDrmPlugin> mPluginV1_2;
+    sp<drm::V1_4::IDrmPlugin> mPluginV1_4;
     String8 mAppPackageName;
 
     // Mutable to allow modification within GetPropertyByteArray.
diff --git a/drm/libmediadrm/include/mediadrm/IDrm.h b/drm/libmediadrm/include/mediadrm/IDrm.h
index 0177c24..c117cec 100644
--- a/drm/libmediadrm/include/mediadrm/IDrm.h
+++ b/drm/libmediadrm/include/mediadrm/IDrm.h
@@ -145,6 +145,13 @@
 
     virtual status_t setListener(const sp<IDrmClient>& listener) = 0;
 
+    virtual bool requiresSecureDecoder(
+            const char *mime) const = 0;
+
+    virtual bool requiresSecureDecoder(
+            const char *mime,
+            DrmPlugin::SecurityLevel securityLevel) const = 0;
+
 protected:
     IDrm() {}