diff -r 095bea5f582e -r 0ac9a5310753 khronosfws/openmax_al/src/common/xametadataextractionitf.c
--- a/khronosfws/openmax_al/src/common/xametadataextractionitf.c	Tue Aug 31 15:43:02 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,713 +0,0 @@
-/*
- * 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: Metadata Extraction Interface Implementation
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-
-#include "xametadataextractionitf.h"
-#include "xadebug.h"
-
-#include "xametadataadaptation.h"
-
-#include "xaadaptationmmf.h"
-#include "xametadataadaptctxmmf.h"
-#include "xamediaplayeradaptctxmmf.h"
-#include "cmetadatautilityitf.h"
-
-/* XAMetadataExtractionItfImpl* GetImpl(XAMetadataExtractionItf self)
- * Description: Validate interface pointer and cast it to implementation pointer.
- **/
-static XAMetadataExtractionItfImpl* GetImpl(XAMetadataExtractionItf self)
-    {
-    if (self)
-        {
-        XAMetadataExtractionItfImpl* impl =
-                (XAMetadataExtractionItfImpl*) (*self);
-        if (impl && (impl == impl->self))
-            {
-            return impl;
-            }
-        }
-    return NULL;
-    }
-
-static void* GetMetadataUtilityContext(XAAdaptationMMFCtx* adaptCtx)
-    {
-    if (adaptCtx)
-        {
-        switch (adaptCtx->baseObj.ctxId)
-            {
-            case XAMediaPlayerAdaptation:
-                return ((XAMediaPlayerAdaptationMMFCtx*) adaptCtx)->mmfMetadataContext;
-            case XAMDAdaptation:
-                return ((XAMetadataAdaptationMMFCtx*) adaptCtx)->mmfContext;
-            default:
-                break;
-            }
-
-        }
-    return NULL;
-    }
-/*****************************************************************************
- * Base interface XAMetadataExtractionItf implementation
- *****************************************************************************/
-
-/*
- * Returns the number of metadata items within the current scope of the object.
- * @XAuint32 *pItemCount
- *      Number of metadata items.  Must be non-NULL
- */
-XAresult XAMetadataExtractionItfImpl_GetItemCount(
-        XAMetadataExtractionItf self, XAuint32 *pItemCount)
-    {
-    XAMetadataExtractionItfImpl *impl = NULL;
-    XAresult res = XA_RESULT_SUCCESS;
-    DEBUG_API("->XAMetadataExtractionItfImpl_GetItemCount");
-
-    impl = GetImpl(self);
-    /* check parameters */
-    if (!impl || !pItemCount)
-        {
-        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-        res = XA_RESULT_PARAMETER_INVALID;
-        }
-    else
-        {
-
-        if (impl->adaptCtx)
-            {
-
-            if (impl->adaptCtx->fwtype == FWMgrFWMMF)
-                {
-                void *mmfCtx = GetMetadataUtilityContext(
-                        (XAAdaptationMMFCtx*) impl->adaptCtx);
-                if (mmfCtx)
-                    {
-                    res = mmf_get_item_count(mmfCtx, pItemCount);
-                    }
-                else
-                    {
-                    res = XA_RESULT_PARAMETER_INVALID;
-                    }
-                }
-            else
-                {
-                if (impl->filteringOn)
-                    {
-                    *pItemCount = impl->filteredcount;
-                    }
-                else
-                    {
-                    *pItemCount = impl->currentTags.itemcount;
-                    }
-                res = XA_RESULT_SUCCESS;
-                }
-            }
-        else
-            {
-            res = XA_RESULT_INTERNAL_ERROR;
-            }
-
-        DEBUG_INFO_A1("itemCount = %d", (int)*pItemCount);
-        }
-
-    DEBUG_API_A1("<-XAMetadataExtractionItfImpl_GetItemCount (%d)", (int)res);
-    return res;
-    }
-
-/*
- * Returns the byte size of a given metadata key
- *
- * @XAuint32 index
- *      Metadata item Index. Range is [0, GetItemCount)
- * @XAuint32 *pKeySize
- *      Address to store key size. size must be greater than 0.  Must be non-NULL
- */
-XAresult XAMetadataExtractionItfImpl_GetKeySize(XAMetadataExtractionItf self,
-        XAuint32 index, XAuint32 *pKeySize)
-    {
-    XAMetadataExtractionItfImpl *impl = NULL;
-    XAresult res = XA_RESULT_SUCCESS;
-    XAuint32 newidx = 0;
-    DEBUG_API("->XAMetadataExtractionItfImpl_GetKeySize");
-
-    impl = GetImpl(self);
-    if (!impl || !pKeySize)
-        {
-        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-        DEBUG_API("<-XAMetadataExtractionItfImpl_GetKeySize");
-        return XA_RESULT_PARAMETER_INVALID;
-        }
-    *pKeySize = 0;
-
-    if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWMMF)
-        {
-        void *mmfCtx = GetMetadataUtilityContext(
-                (XAAdaptationMMFCtx*) impl->adaptCtx);
-        if (mmfCtx)
-            {
-            res = mmf_get_key_size(mmfCtx, index, pKeySize);
-            }
-        else
-            {
-            res = XA_RESULT_PARAMETER_INVALID;
-            }
-        }
-    else
-        {
-        /* check index and return unfiltered index */
-        if (CheckAndUnfilterIndex(impl, index, &newidx) != XA_RESULT_SUCCESS)
-            {
-            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-            DEBUG_API("<-XAMetadataExtractionItfImpl_GetKeySize");
-            return XA_RESULT_PARAMETER_INVALID;
-            }
-
-        /* size = size of struct + size of data - 1 (struct size already includes one char) */
-        *pKeySize = sizeof(XAMetadataInfo)
-                + impl->currentTags.mdeKeys[newidx]->size - 1;
-        }
-
-    DEBUG_API_A1("<-XAMetadataExtractionItfImpl_GetKeySize (%d)", (int)res);
-    return res;
-    }
-
-/*
- * Returns a XAMetadataInfo structure and associated data referenced by the structure for a key.
- * @XAuint32 index
- *      Metadata item Index. Range is [0, GetItemCount())
- * @XAuint32 keySize
- *      Size of the memory block passed as key. Range is [1, GetKeySize].
- * @XAMetadataInfo *pKey
- *      Address to store the key.  Must be non-NULL
- */
-XAresult XAMetadataExtractionItfImpl_GetKey(XAMetadataExtractionItf self,
-        XAuint32 index, XAuint32 keySize, XAMetadataInfo *pKey)
-    {
-    XAMetadataExtractionItfImpl *impl = NULL;
-    XAresult res = XA_RESULT_SUCCESS;
-    XAuint32 newidx = 0;
-
-    XAuint32 neededsize = 0;
-
-    XAuint32 newdatasize = 0;
-    DEBUG_API("->XAMetadataExtractionItfImpl_GetKey");
-
-    impl = GetImpl(self);
-    if (!impl || !pKey)
-        {
-        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-        DEBUG_API("<-XAMetadataExtractionItfImpl_GetKey");
-        return XA_RESULT_PARAMETER_INVALID;
-        }
-
-    memset(pKey, 0, keySize);
-
-    if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWMMF)
-        {
-        void *mmfCtx = GetMetadataUtilityContext(
-                (XAAdaptationMMFCtx*) impl->adaptCtx);
-        if (mmfCtx)
-            {
-            res = mmf_get_key(mmfCtx, index, keySize, pKey);
-            }
-        else
-            {
-            res = XA_RESULT_PARAMETER_INVALID;
-            }
-        }
-    else
-        {
-
-        /* check index and return unfiltered index */
-        if (CheckAndUnfilterIndex(impl, index, &newidx) != XA_RESULT_SUCCESS)
-            {
-            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-            DEBUG_API("<-XAMetadataExtractionItfImpl_GetKey");
-            return XA_RESULT_PARAMETER_INVALID;
-            }
-
-        /* needed size = size of struct + size of data - 1 (struct size already includes one char) */
-        neededsize = sizeof(XAMetadataInfo)
-                + impl->currentTags.mdeKeys[newidx]->size - 1;
-        if (keySize < neededsize)
-            { /* cannot fit all of key data */
-            newdatasize = impl->currentTags.mdeKeys[newidx]->size
-                    - (neededsize - keySize);
-            DEBUG_ERR("XA_RESULT_BUFFER_INSUFFICIENT");
-            res = XA_RESULT_BUFFER_INSUFFICIENT;
-            }
-        else
-            {
-            newdatasize = impl->currentTags.mdeKeys[newidx]->size;
-            res = XA_RESULT_SUCCESS;
-            }
-        /* copy data up to given size */
-        memcpy(pKey, impl->currentTags.mdeKeys[newidx], keySize - 1);
-        /* ensure null-termination */
-
-        memset(pKey->data + newdatasize - 1, 0, 1);
-        pKey->size = newdatasize;
-        }
-
-    DEBUG_API_A1("<-XAMetadataExtractionItfImpl_GetKey (%d)", (int)res);
-    return res;
-    }
-
-/*
- * Returns the byte size of a given metadata value
- * @XAuint32 index
- *      Metadata item Index. Range is [0, GetItemCount())
- * @XAuint32 *pValueSize
- *      Address to store value size. size must be greater than 0.  Must be non-NULL
- */
-XAresult XAMetadataExtractionItfImpl_GetValueSize(
-        XAMetadataExtractionItf self, XAuint32 index, XAuint32 *pValueSize)
-    {
-    XAMetadataExtractionItfImpl *impl = NULL;
-    XAresult res = XA_RESULT_SUCCESS;
-    XAuint32 newidx = 0;
-    DEBUG_API("->XAMetadataExtractionItfImpl_GetValueSize");
-
-    impl = GetImpl(self);
-    if (!impl || !pValueSize)
-        {
-        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-        DEBUG_API("<-XAMetadataExtractionItfImpl_GetValueSize");
-        return XA_RESULT_PARAMETER_INVALID;
-        }
-    *pValueSize = 0;
-
-    if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWMMF)
-        {
-        void *mmfCtx = GetMetadataUtilityContext(
-                (XAAdaptationMMFCtx*) impl->adaptCtx);
-        if (mmfCtx)
-            {
-            res = mmf_get_value_size(mmfCtx, index, pValueSize);
-            }
-        else
-            {
-            res = XA_RESULT_PARAMETER_INVALID;
-            }
-        }
-    else
-        {
-        /* check index and return unfiltered index */
-        if (CheckAndUnfilterIndex(impl, index, &newidx) != XA_RESULT_SUCCESS)
-            {
-            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-            DEBUG_API("<-XAMetadataExtractionItfImpl_GetValueSize");
-            return XA_RESULT_PARAMETER_INVALID;
-            }
-
-        /* size = size of struct + size of data - 1 (struct size already includes one char) */
-        *pValueSize = sizeof(XAMetadataInfo)
-                + impl->currentTags.mdeValues[newidx]->size - 1;
-        }
-
-    DEBUG_API_A1("<-XAMetadataExtractionItfImpl_GetValueSize (%d)", (int)res);
-    return res;
-    }
-
-/*
- * Returns a XAMetadataInfo structure and associated data referenced by the structure for a value.
- *  @XAuint32 index
- *      Metadata item Index. Range is [0, GetItemCount())
- *  @XAuint32 valueSize
- *      Size of the memory block passed as value. Range is [0, GetValueSize]
- *  @XAMetadataInfo *pValue
- *      Address to store the value.  Must be non-NULL
- */
-XAresult XAMetadataExtractionItfImpl_GetValue(XAMetadataExtractionItf self,
-        XAuint32 index, XAuint32 valueSize, XAMetadataInfo *pValue)
-    {
-    XAMetadataExtractionItfImpl *impl = NULL;
-    XAresult res = XA_RESULT_SUCCESS;
-    XAuint32 newidx = 0;
-
-    XAuint32 neededsize = 0;
-
-    XAuint32 newdatasize = 0;
-    DEBUG_API("->XAMetadataExtractionItfImpl_GetValue");
-
-    impl = GetImpl(self);
-    if (!impl || !pValue)
-        {
-        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-        DEBUG_API("<-XAMetadataExtractionItfImpl_GetValue");
-        return XA_RESULT_PARAMETER_INVALID;
-        }
-
-    memset(pValue, 0, valueSize);
-
-    if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWMMF)
-        {
-        void *mmfCtx = GetMetadataUtilityContext(
-                (XAAdaptationMMFCtx*) impl->adaptCtx);
-        if (mmfCtx)
-            {
-            res = mmf_get_value(mmfCtx, index, valueSize, pValue);
-            }
-        else
-            {
-            res = XA_RESULT_PARAMETER_INVALID;
-            }
-        }
-    else
-        {
-        /* check index and return unfiltered index */
-        if (CheckAndUnfilterIndex(impl, index, &newidx) != XA_RESULT_SUCCESS)
-            {
-            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-            DEBUG_API("<-XAMetadataExtractionItfImpl_GetValue");
-            return XA_RESULT_PARAMETER_INVALID;
-            }
-
-        /* needed size = size of struct + size of data - 1 (struct size already includes one char) */
-        neededsize = sizeof(XAMetadataInfo)
-                + impl->currentTags.mdeValues[newidx]->size - 1;
-        if (valueSize < neededsize)
-            { /* cannot fit all of key data */
-            newdatasize = impl->currentTags.mdeValues[newidx]->size
-                    - (neededsize - valueSize);
-            DEBUG_ERR("XA_RESULT_BUFFER_INSUFFICIENT");
-            res = XA_RESULT_BUFFER_INSUFFICIENT;
-            }
-        else
-            {
-            newdatasize = impl->currentTags.mdeValues[newidx]->size;
-            res = XA_RESULT_SUCCESS;
-            }
-        /* copy data up to given size */
-        memcpy(pValue, impl->currentTags.mdeValues[newidx], valueSize - 1);
-        /* ensure null-termination */
-
-        memset(pValue->data + newdatasize - 1, 0, 1);
-
-        pValue->size = newdatasize;
-        }
-
-    DEBUG_API_A1("<-XAMetadataExtractionItfImpl_GetValue (%d)",(int)res);
-    return res;
-    }
-
-/*
- * Adds a filter for a specific key
- * @XAuint32 keySize
- *      Size in bytes, of the pKey parameter. Ignored if filtering by key is disabled
- * @const void *pKey
- *      The key to filter by. The entire key must match. Ignored if filtering by key is disabled.
- * @XAuint32 keyEncoding
- *      Character encoding of the pKey parameter. Ignored if filtering by key is disabled
- * @const XAchar *pValueLangCountry
- *      Language / country code of the value to filter by. Ignored if filtering by language / country is disabled
- * @XAuint32 valueEncoding
- *      Encoding of the value to filter by. Ignored if filtering by encoding is disabled
- * @XAuint8 filterMask
- *      Bitmask indicating which criteria to filter by. Should be one of the XA_METADATA_FILTER macros
- */
-XAresult XAMetadataExtractionItfImpl_AddKeyFilter(
-        XAMetadataExtractionItf self, XAuint32 keySize, const void *pKey,
-        XAuint32 keyEncoding, const XAchar *pValueLangCountry,
-        XAuint32 valueEncoding, XAuint8 filterMask)
-    {
-    XAresult res = XA_RESULT_SUCCESS;
-
-    XAuint32 idx = 0;
-    XAuint8 matchMask = 0;
-
-    XAMetadataExtractionItfImpl *impl = NULL;
-    const XAchar* parsedkey;
-    impl = GetImpl(self);
-
-    DEBUG_API("->XAMetadataExtractionItfImpl_AddKeyFilter");
-
-    if (!impl)
-        {
-        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-        DEBUG_API("<-XAMetadataExtractionItfImpl_AddKeyFilter");
-        return XA_RESULT_PARAMETER_INVALID;
-        }
-    else
-        {
-
-        if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWMMF)
-            {
-            DEBUG_API("<-XAMetadataExtractionItfImpl_AddKeyFilter Not Supported in MMF");
-            res = XA_RESULT_PARAMETER_INVALID;
-            }
-        else
-            {
-            impl->filteringOn = XA_BOOLEAN_TRUE;
-            for (idx = 0; idx < impl->currentTags.itemcount; idx++)
-                {
-                if ((filterMask & XA_METADATA_FILTER_KEY) && pKey)
-                    {
-                    parsedkey = XAMetadataAdapt_ParseKhronosKey(pKey);
-                    if (strcmp((char*) parsedkey,
-                            (char*) impl->currentTags.mdeKeys[idx]->data)
-                            == 0)
-                        {
-                        matchMask |= XA_METADATA_FILTER_KEY;
-                        }
-                    }
-                if (filterMask & XA_METADATA_FILTER_LANG && pValueLangCountry)
-                    {
-                    if (strcmp(
-                            (char*) pValueLangCountry,
-                            (char*) impl->currentTags.mdeKeys[idx]->langCountry)
-                            == 0)
-                        {
-                        matchMask |= XA_METADATA_FILTER_LANG;
-                        }
-                    }
-                if (filterMask & XA_METADATA_FILTER_ENCODING)
-                    {
-                    if (keyEncoding
-                            == impl->currentTags.mdeKeys[idx]->encoding)
-                        {
-                        matchMask |= XA_METADATA_FILTER_ENCODING;
-                        }
-                    if (valueEncoding
-                            == impl->currentTags.mdeValues[idx]->encoding)
-                        {
-                        matchMask |= XA_METADATA_FILTER_ENCODING;
-                        }
-                    }
-                /* check if all filters apply */
-                if (filterMask == matchMask)
-                    {
-                    if (impl->tagmatchesfilter[idx] == XA_BOOLEAN_FALSE)
-                        {
-                        impl->tagmatchesfilter[idx] = XA_BOOLEAN_TRUE;
-                        impl->filteredcount++;
-                        }
-                    }
-                /*reset matchmask*/
-                matchMask = 0;
-                }
-            }
-        }
-    DEBUG_API_A1("<-XAMetadataExtractionItfImpl_AddKeyFilter (%d)", (int)res);
-    return res;
-    }
-
-/*
- * Clears the key filter
- */
-XAresult XAMetadataExtractionItfImpl_ClearKeyFilter(
-        XAMetadataExtractionItf self)
-    {
-    XAMetadataExtractionItfImpl *impl = NULL;
-    XAresult res = XA_RESULT_SUCCESS;
-
-    XAuint32 idx = 0;
-
-    DEBUG_API("->XAMetadataExtractionItfImpl_ClearKeyFilter");
-    impl = GetImpl(self);
-    if (!impl)
-        {
-        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-        res = XA_RESULT_PARAMETER_INVALID;
-        }
-    else
-        {
-
-        if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWMMF)
-            {
-            DEBUG_API("<-XAMetadataExtractionItfImpl_ClearKeyFilter Not Supported in MMF");
-            res = XA_RESULT_PARAMETER_INVALID;
-            }
-        else
-            {
-            if (impl->tagmatchesfilter)
-                {
-
-                for (idx = 0; idx < impl->currentTags.itemcount; idx++)
-                    {
-                    impl->tagmatchesfilter[idx] = XA_BOOLEAN_FALSE;
-                    }
-
-                }
-            impl->filteredcount = 0;
-            impl->filteringOn = XA_BOOLEAN_FALSE;
-            }
-        }
-
-    DEBUG_API_A1("<-XAMetadataExtractionItfImpl_ClearKeyFilter (%d)", (int)res);
-    return res;
-    }
-
-/*****************************************************************************
- * XAMetadataExtractionItfImpl -specific methods
- *****************************************************************************/
-
-/* XAMetadataExtractionItfImpl* XAMetadataExtractionItfImpl_Create()
- * Description: Allocate and initialize XAMetadataExtractionItfImpl
- */
-XAMetadataExtractionItfImpl* XAMetadataExtractionItfImpl_Create(
-        XAAdaptationBaseCtx *adaptCtx)
-    {
-    XAMetadataExtractionItfImpl *self = NULL;
-    DEBUG_API("->XAMetadataExtractionItfImpl_Create");
-
-    self = (XAMetadataExtractionItfImpl*) calloc(1,
-            sizeof(XAMetadataExtractionItfImpl));
-
-    if (self)
-        {
-        /* init itf default implementation */
-        self->itf.GetItemCount = XAMetadataExtractionItfImpl_GetItemCount;
-        self->itf.GetKeySize = XAMetadataExtractionItfImpl_GetKeySize;
-        self->itf.GetKey = XAMetadataExtractionItfImpl_GetKey;
-        self->itf.GetValueSize = XAMetadataExtractionItfImpl_GetValueSize;
-        self->itf.GetValue = XAMetadataExtractionItfImpl_GetValue;
-        self->itf.AddKeyFilter = XAMetadataExtractionItfImpl_AddKeyFilter;
-        self->itf.ClearKeyFilter = XAMetadataExtractionItfImpl_ClearKeyFilter;
-
-        /* init variables */
-        self->filteredcount = 0;
-        self->filteringOn = XA_BOOLEAN_FALSE;
-
-        self->adaptCtx = adaptCtx;
-
-        if (self->adaptCtx->fwtype != FWMgrFWMMF)
-            {
-            XAAdaptationBase_AddEventHandler(adaptCtx,
-                    &XAMetadataExtractionItfImp_AdaptCb, XA_METADATAEVENTS,
-                    self);
-            }
-
-        self->self = self;
-        }
-
-    DEBUG_API("<-XAMetadataExtractionItfImpl_Create");
-    return self;
-    }
-
-/* void XAMetadataExtractionItfImpl_Free(XAMetadataExtractionItfImpl* self)
- * Description: Free all resources reserved at XAMetadataExtractionItfImpl_Create
- */
-void XAMetadataExtractionItfImpl_Free(XAMetadataExtractionItfImpl* self)
-    {
-    DEBUG_API("->XAMetadataExtractionItfImpl_Free");
-    assert(self==self->self);
-
-    if (self->adaptCtx->fwtype != FWMgrFWMMF)
-        {
-        XAAdaptationBase_RemoveEventHandler(self->adaptCtx,
-                &XAMetadataExtractionItfImp_AdaptCb);
-        XAMetadataAdapt_FreeImplTagList(&(self->currentTags), XA_BOOLEAN_TRUE);
-
-        if (self->tagmatchesfilter)
-            {
-            free(self->tagmatchesfilter);
-            }
-        }
-
-    free(self);
-    DEBUG_API("<-XAMetadataExtractionItfImpl_Free");
-    }
-
-/* With this method, adaptation infroms that new tags are found (e.g. if source,
- * has changed, live stream contains metadata...)
- */
-void XAMetadataExtractionItfImp_AdaptCb(void *pHandlerCtx,
-        XAAdaptEvent *event)
-    {
-    XAMetadataExtractionItfImpl* impl = NULL;
-    DEBUG_API("->XAMetadataExtractionItfImp_AdaptCb");
-    impl = (XAMetadataExtractionItfImpl*) pHandlerCtx;
-    if (!impl)
-        {
-        DEBUG_ERR("XAMetadataExtractionItfImp_AdaptCb, invalid context pointer!");
-        DEBUG_API("<-XAMetadataExtractionItfImp_AdaptCb");
-        return;
-        }
-    if (event && event->eventid == XA_ADAPT_MDE_TAGS_AVAILABLE)
-        {
-        /* get the tag list */
-        XAMetadataExtractionItfAdapt_FillTagList(
-                (XAAdaptationGstCtx*) impl->adaptCtx, &(impl->currentTags));
-        if (impl->tagmatchesfilter)
-            {
-            free(impl->tagmatchesfilter);
-            }
-        impl->tagmatchesfilter = calloc(impl->currentTags.itemcount,
-                sizeof(XAboolean));
-        impl->filteredcount = 0;
-        }
-    else
-        {
-        DEBUG_INFO("unhandled");
-        }
-    DEBUG_API("<-XAMetadataExtractionItfImp_AdaptCb");
-    }
-
-/* For given index over filtered array, return index over whole array
- */
-XAresult CheckAndUnfilterIndex(XAMetadataExtractionItfImpl *impl,
-        XAuint32 oldidx, XAuint32 *newidx)
-    {
-    DEBUG_API("->CheckAndUnfilterIndex");
-
-    if (impl->filteringOn)
-        {
-        XAint16 i = -1;
-        if (oldidx >= impl->filteredcount)
-            {
-            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-            DEBUG_API("<-CheckAndUnfilterIndex");
-            return XA_RESULT_PARAMETER_INVALID;
-            }
-        *newidx = 0;
-        while (*newidx < impl->currentTags.itemcount)
-            {
-            if (impl->tagmatchesfilter[*newidx])
-                i++;
-            if (i < oldidx)
-                (*newidx)++;
-            else
-                break;
-            }
-        if (*newidx == impl->currentTags.itemcount)
-            {
-            /* should not end up here */
-            *newidx = 0;
-            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-            DEBUG_API("<-CheckAndUnfilterIndex");
-            return XA_RESULT_PARAMETER_INVALID;
-            }
-        }
-    else
-        {
-        if (oldidx >= impl->currentTags.itemcount)
-            {
-            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
-            DEBUG_API("<-CheckAndUnfilterIndex");
-            return XA_RESULT_PARAMETER_INVALID;
-            }
-        *newidx = oldidx;
-        }
-
-    DEBUG_API("<-CheckAndUnfilterIndex");
-    return XA_RESULT_SUCCESS;
-    }
-