--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/omxil_generic/omxilcomplib/src/omxilutil.cpp	Wed Aug 25 12:40:50 2010 +0300
@@ -0,0 +1,109 @@
+// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+
+/**
+ @file
+ @internalComponent
+*/
+
+
+#include <openmax/il/common/omxilutil.h>
+#include <openmax/il/common/omxilspecversion.h>
+
+/**
+   This method checks that the size of an OpenMAX IL data structure is
+   correct. It also checks that the OpenMAX IL version stated in the structure
+   is the same as the one returned by TOmxILSpecVersion() (at the time of
+   writting this is 1.1.1). In this version of the component framework,
+   backward compatibility in not supported for OpenMAX IL structures.
+
+   @param apHeader An OpenMAX IL data structure.
+
+   @param aSize sizeof(OMXIL structure)
+
+   @return OMX_ErrorVersionMismatch if the version is not
+   1.1.1. OMX_ErrorBadParameter if versions are the same but the nSize is
+   different. OMX_ErrorNone otherwise
+ */
+EXPORT_C OMX_ERRORTYPE
+TOmxILUtil::CheckOmxStructSizeAndVersion(OMX_PTR apHeader, OMX_U32 aSize)
+	{
+
+	if (!apHeader || aSize == 0)
+		{
+		return OMX_ErrorBadParameter;
+		}
+
+#ifdef _OMXIL_COMMON_SPEC_VERSION_CHECKS_ON
+
+	OMX_U32* const pStructSize =
+		reinterpret_cast<OMX_U32*>(apHeader);
+
+    // In an OpenMAX IL structure the nSize and nVersion fields are used to
+    // detect the difference in spec versions.
+	OMX_VERSIONTYPE* const pOmxVersion =
+		reinterpret_cast<OMX_VERSIONTYPE*>(
+			pStructSize + (sizeof(OMX_U32)/sizeof(OMX_U32)));
+
+	if ( (TOmxILSpecVersion() != *pOmxVersion)&&(TOmxILVersion(OMX_VERSION_MAJOR, OMX_VERSION_MINOR, 1, OMX_VERSION_STEP) != *pOmxVersion) )
+
+		{
+		return OMX_ErrorVersionMismatch;
+		}
+
+	// If the spec versions are the same, then the struct sizes must be the
+	// same too...
+	if (*pStructSize != aSize)
+		{
+		return OMX_ErrorBadParameter;
+		}
+
+#endif // _OMXIL_COMMON_SPEC_VERSION_CHECKS_ON
+
+	return OMX_ErrorNone;
+
+	}
+
+/**
+   This method simply resets the following fields in the OMX IL 1.1.x buffer header:
+   nFilledLen
+   hMarkTargetComponent
+   pMarkData
+   nTickCount
+   nTimeStamp
+   nFlags
+
+   @param apBufferHeader An OpenMAX IL buffer header structure.
+
+ */
+EXPORT_C void
+TOmxILUtil::ClearBufferContents(
+	OMX_BUFFERHEADERTYPE* apBufferHeader)
+	{
+
+	if (!apBufferHeader)
+		{
+		return;
+		}
+
+	apBufferHeader->nFilledLen			 = 0;
+	apBufferHeader->hMarkTargetComponent = 0;
+	apBufferHeader->pMarkData			 = 0;
+	apBufferHeader->nTickCount			 = 0;
+	apBufferHeader->nTimeStamp			 = 0;
+	apBufferHeader->nFlags				 = 0;
+
+	}