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diff --git a/media/mca/filterfw/jni/jni_native_buffer.h b/media/mca/filterfw/jni/jni_native_buffer.h
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+++ b/media/mca/filterfw/jni/jni_native_buffer.h
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+/*
+ * Copyright (C) 2011 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_FILTEFW_JNI_NATIVE_BUFFER_H
+#define ANDROID_FILTEFW_JNI_NATIVE_BUFFER_H
+
+#include <jni.h>
+
+// Internal Buffer Unwrapping functions ////////////////////////////////////////////////////////////
+/**
+ * Given a Java NativeBuffer instance, get access to the underlying C pointer and its size. The
+ * size argument may be NULL, in which case the object is not queried for its size.
+ **/
+char* GetJBufferData(JNIEnv* env, jobject buffer, int* size);
+
+/**
+ * Attach a given C data buffer and its size to a given allocated Java NativeBuffer instance. After
+ * this call, the java instance will have the given C buffer as its backing. Note, that the Java
+ * instance contains the flag on whether or not it owns the buffer or not, so make sure it is what
+ * you expect.
+ **/
+bool AttachDataToJBuffer(JNIEnv* env, jobject buffer, char* data, int size);
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// JNI Wrappers ////////////////////////////////////////////////////////////////////////////////////
+JNIEXPORT jboolean JNICALL
+Java_android_filterfw_core_NativeBuffer_allocate(JNIEnv* env, jobject thiz, jint size);
+
+JNIEXPORT jboolean JNICALL
+Java_android_filterfw_core_NativeBuffer_deallocate(JNIEnv* env, jobject thiz, jboolean owns_data);
+
+JNIEXPORT jboolean JNICALL
+Java_android_filterfw_core_NativeBuffer_nativeCopyTo(JNIEnv* env, jobject thiz, jobject new_buffer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // ANDROID_FILTEFW_JNI_NATIVE_BUFFER_H