diff --git a/include/media/DescramblerImpl.h b/include/media/DescramblerImpl.h
new file mode 100644
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+++ b/include/media/DescramblerImpl.h
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+/*
+ * Copyright (C) 2017 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 DESCRAMBLER_IMPL_H_
+#define DESCRAMBLER_IMPL_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <android/media/BnDescrambler.h>
+
+namespace android {
+using namespace media;
+using namespace MediaDescrambler;
+using binder::Status;
+class DescramblerPlugin;
+class SharedLibrary;
+
+class DescramblerImpl : public BnDescrambler {
+public:
+    DescramblerImpl(const sp<SharedLibrary>& library, DescramblerPlugin *plugin);
+    virtual ~DescramblerImpl();
+
+    virtual Status setMediaCasSession(
+            const CasSessionId& sessionId) override;
+
+    virtual Status requiresSecureDecoderComponent(
+            const String16& mime, bool *result) override;
+
+    virtual Status descramble(
+            const DescrambleInfo& descrambleInfo, int32_t *result) override;
+
+    virtual Status release() override;
+
+private:
+    sp<SharedLibrary> mLibrary;
+    DescramblerPlugin *mPlugin;
+
+    DISALLOW_EVIL_CONSTRUCTORS(DescramblerImpl);
+};
+
+} // namespace android
+
+#endif // DESCRAMBLER_IMPL_H_