/*
* Copyright (c) 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: 
*
*/

#ifndef XAMETADATAEXTRACTIONITF_H
#define XAMETADATAEXTRACTIONITF_H

#include "openmaxalwrapper.h"
#ifdef _GSTREAMER_BACKEND_  
#include "XAAdaptationContextBase.h"
#include "XAMetadataAdaptation.h"
#endif
/** MACROS **/

/** TYPES **/

/** ENUMERATIONS **/

/** STRUCTURES **/
/* Definition of XAMetadataExtractionItf implementation */
typedef struct XAMetadataExtractionItfImpl_
{
    /* parent interface */
    struct XAMetadataExtractionItf_ itf;
    /* pointer to self */
    struct XAMetadataExtractionItfImpl_* self;

    /* variables */
    XAuint32                filteredcount;
    XAboolean*              tagmatchesfilter;
    XAboolean               filteringOn;
#ifdef _GSTREAMER_BACKEND_  
    XAMetadataImplTagList   currentTags;

    XAAdaptationBaseCtx *adaptCtx;
#endif
} XAMetadataExtractionItfImpl;

/** METHODS **/

/* Base interface XAMetadataExtractionItf implementation */
XAresult XAMetadataExtractionItfImpl_GetItemCount(XAMetadataExtractionItf self,
                                                  XAuint32 *pItemCount);

XAresult XAMetadataExtractionItfImpl_GetKeySize(XAMetadataExtractionItf self,
                                                XAuint32 index,
                                                XAuint32 *pKeySize);

XAresult XAMetadataExtractionItfImpl_GetKey(XAMetadataExtractionItf self,
                                            XAuint32 index,
                                            XAuint32 keySize,
                                            XAMetadataInfo *pKey);

XAresult XAMetadataExtractionItfImpl_GetValueSize(XAMetadataExtractionItf self,
                                                  XAuint32 index,
                                                  XAuint32 *pValueSize);

XAresult XAMetadataExtractionItfImpl_GetValue(XAMetadataExtractionItf self,
                                              XAuint32 index,
                                              XAuint32 valueSize,
                                              XAMetadataInfo *pValue);

XAresult XAMetadataExtractionItfImpl_AddKeyFilter(XAMetadataExtractionItf self,
                                                  XAuint32 keySize,
                                                  const void *pKey,
                                                  XAuint32 keyEncoding,
                                                  const XAchar *pValueLangCountry,
                                                  XAuint32 valueEncoding,
                                                  XAuint8 filterMask);

XAresult XAMetadataExtractionItfImpl_ClearKeyFilter(XAMetadataExtractionItf self);

#ifdef _GSTREAMER_BACKEND_  
/* XAMetadataExtractionItfImpl -specific methods */
XAMetadataExtractionItfImpl* XAMetadataExtractionItfImpl_Create( XAAdaptationBaseCtx *adaptCtx);
void XAMetadataExtractionItfImp_AdaptCb( void *pHandlerCtx, XAAdaptEvent *event );
#endif
void XAMetadataExtractionItfImpl_Free(XAMetadataExtractionItfImpl* self);

/* internal methods */
XAresult CheckAndUnfilterIndex(XAMetadataExtractionItfImpl *impl,
                               XAuint32 oldidx, XAuint32 *newidx);

#endif /* XAMETADATAEXTRACTIONITF_H */