diff --git a/cas/1.0/default/SharedLibrary.h b/cas/1.0/default/SharedLibrary.h
new file mode 100644
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--- /dev/null
+++ b/cas/1.0/default/SharedLibrary.h
@@ -0,0 +1,50 @@
+/*
+ * 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 ANDROID_HARDWARE_CAS_V1_0_SHARED_LIBRARY_H_
+#define ANDROID_HARDWARE_CAS_V1_0_SHARED_LIBRARY_H_
+
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_0 {
+namespace implementation {
+
+class SharedLibrary : public RefBase {
+public:
+    explicit SharedLibrary(const String8 &path);
+    ~SharedLibrary();
+
+    bool operator!() const;
+    void *lookup(const char *symbol) const;
+    const char *lastError() const;
+
+private:
+    void *mLibHandle;
+    DISALLOW_EVIL_CONSTRUCTORS(SharedLibrary);
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif // ANDROID_HARDWARE_CAS_V1_0_SHARED_LIBRARY_H_