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diff --git a/omx/openmax/NVOMX_CustomProtocol.h b/omx/openmax/NVOMX_CustomProtocol.h
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+/* Copyright (c) 2008 NVIDIA Corporation.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject
+ * to the following conditions:
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/** 
+ * @file
+ * <b>NVIDIA Tegra: OpenMAX Custom Protocol Registration Interface</b>
+ *
+ */
+
+/**
+ * @defgroup nv_omx_il_protocol Custom Protocol Plug-in Interface
+ *   
+ * This interface is meant to allow registering of a custom set of file I/O 
+ * operations that are then associated with a URI protocol. This can be used 
+ * to implement various network streaming protocols or simple forms of 
+ * full-file DRM decryption. See \c NVOMX_RegisterNVCustomProtoReader()
+ * for how to register a protocol.
+ *
+ * This is essentially a simplified version of an OpenMAX ContentPipe.
+ *
+ * @ingroup nvomx_plugins
+ * @{
+ */
+
+#ifndef NVOMX_CUSTOMPROTOCOL_H_
+#define NVOMX_CUSTOMPROTOCOL_H_
+
+#include "OMX_Types.h"
+#include "OMX_ContentPipe.h"
+#include "nvcustomprotocol.h"
+
+/** Registers an NV_CUSTOM_PROTOCOL interface to handle protocol \a szProto. 
+ *
+ * Associates a protocol (eg, "drm://") with an ::NVMM_CUSTOM_PROTOCOL 
+ * structure. Any files then opened with the protocol prefix will use the
+ * functions in \a pProtocol for all file access.
+ *
+ * @param szProto   The protocol name to register, must include '://'
+ * @param pProtocol A pointer to an NVMM_CUSTOM_PROTOCOL implementation.
+ */
+CPresult NVOMX_RegisterNVCustomProtocol(OMX_STRING szProto, 
+                                        NV_CUSTOM_PROTOCOL *pProtocol);
+
+#endif
+
+/** @} */
+/* File EOF */