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diff --git a/media/mca/filterfw/native/core/gl_buffer_interface.h b/media/mca/filterfw/native/core/gl_buffer_interface.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_FILTERFW_CORE_GL_BUFFER_INTERFACE_H
+#define ANDROID_FILTERFW_CORE_GL_BUFFER_INTERFACE_H
+
+#include <GLES2/gl2.h>
+
+namespace android {
+namespace filterfw {
+
+class GLTextureHandle {
+  public:
+    virtual ~GLTextureHandle() { }
+
+    // Returns the held texture id.
+    virtual GLuint GetTextureId() const = 0;
+
+    // Binds the held texture. This may result in creating the texture if it
+    // is not yet available.
+    virtual bool FocusTexture() = 0;
+
+    // Generates the mipmap chain of the held texture. Returns true, iff
+    // generating was successful.
+    virtual bool GenerateMipMap() = 0;
+
+    // Set a texture parameter (see glTextureParameter documentation). Returns
+    // true iff the parameter was set successfully.
+    virtual bool SetTextureParameter(GLenum pname, GLint value) = 0;
+
+    // Returns the texture target used.
+    // Texture Target should be: GL_TEXTURE_2D, GL_TEXTURE_EXTERNAL_OES.
+    virtual GLuint GetTextureTarget() const = 0;
+};
+
+class GLFrameBufferHandle {
+  public:
+    virtual ~GLFrameBufferHandle() { }
+
+    // Returns the held FBO id.
+    virtual GLuint GetFboId() const = 0;
+
+    // Binds the held FBO. This may result in creating the FBO if it
+    // is not yet available.
+    virtual bool FocusFrameBuffer() = 0;
+};
+
+// Interface to instances that hold GL textures and frame-buffer-objects.
+// The GLFrame class implements this interface.
+class GLBufferHandle : public GLTextureHandle, public GLFrameBufferHandle {
+  public:
+    virtual ~GLBufferHandle() { }
+};
+
+} // namespace filterfw
+} // namespace android
+
+#endif  // ANDROID_FILTERFW_CORE_GL_BUFFER_INTERFACE_H