--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/khronosfws/openmax_al/src/adaptation/xadynamicsourceitfadaptation.c	Fri Apr 16 15:29:42 2010 +0300
@@ -0,0 +1,103 @@
+/*
+* 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: 
+*
+*/
+
+#include <gst.h>
+#include "XAAdaptation.h"
+#include "XAMediaPlayerAdaptCtx.h"
+#include "XADynamicSourceItfAdaptation.h"
+
+/*
+ * XAresult XADynamicSourceItfAdapt_SetSource(XAAdaptationBaseCtx *bCtx, XADataSource *pDataSource)
+ * @param XAAdaptationBaseCtx *bCtx - Adaptation context, this will be casted to correct type regarding to contextID value
+ * @param XADataSource *pDataSource - new data source
+ * @return XAresult ret - Success value
+ */
+XAresult XADynamicSourceItfAdapt_SetSource(XAAdaptationBaseCtx *bCtx, XADataSource *pDataSource)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    DEBUG_API("->XADynamicSourceItfAdapt_SetSource");
+    if( !bCtx || !pDataSource || !pDataSource->pLocator )
+    {
+        DEBUG_ERR("Invalid NULL parameter");
+        ret = XA_RESULT_PARAMETER_INVALID;
+    }
+    else if(bCtx->ctxId == XAMediaPlayerAdaptation || bCtx->ctxId == XAMDAdaptation )
+    {
+        XAMediaPlayerAdaptationCtx* mCtx = (XAMediaPlayerAdaptationCtx*) bCtx;
+        GstStateChangeReturn gret;
+        GstState origState;
+        GstElement* newSource = XAAdaptationBase_CreateGstSource( pDataSource, "datasrc", &(mCtx->isobjsrc), NULL, NULL);
+        if(!newSource)
+        {
+            DEBUG_ERR("Could not create data source!!!");
+            return XA_RESULT_CONTENT_NOT_FOUND;
+        }
+        DEBUG_INFO("Changing Playback Source");
+        /* store current state */
+        origState = GST_STATE(bCtx->bin);
+        /* unroll pipeline */
+        bCtx->binWantedState = GST_STATE_NULL;
+        XAAdaptationBase_PrepareAsyncWait(bCtx);
+        gret = gst_element_set_state( GST_ELEMENT(bCtx->bin), bCtx->binWantedState);
+        if( gret == GST_STATE_CHANGE_ASYNC )
+        {
+            DEBUG_INFO("Wait for unroll");
+            XAAdaptationBase_StartAsyncWait(bCtx);
+            DEBUG_INFO("Unroll ready");
+        }
+        else if( gret == GST_STATE_CHANGE_FAILURE )
+        {   /*not much we can do*/
+             DEBUG_ERR("WARNING: Failed to unroll pipeline!!")
+             return XA_RESULT_INTERNAL_ERROR;
+        }
+        bCtx->waitingasyncop = XA_BOOLEAN_FALSE;
+
+        /* set new source */
+        gst_element_unlink(mCtx->source,mCtx->codecbin);
+        gst_bin_remove(GST_BIN(bCtx->bin), mCtx->source);
+        mCtx->source = newSource;
+        gst_bin_add(GST_BIN(bCtx->bin), mCtx->source);
+        gst_element_link(mCtx->source, mCtx->codecbin);
+        mCtx->xaSource = pDataSource;
+
+        /* restore pipeline state */
+        bCtx->binWantedState = origState;
+        DEBUG_INFO_A1("Changing pipeline back to state %s",gst_element_state_get_name(origState));
+        XAAdaptationBase_PrepareAsyncWait(bCtx);
+        gret = gst_element_set_state( GST_ELEMENT(bCtx->bin), bCtx->binWantedState);
+        if( gret == GST_STATE_CHANGE_ASYNC )
+        {
+            DEBUG_INFO("Wait for state change");
+            XAAdaptationBase_StartAsyncWait(bCtx);
+        }
+        else if( gret == GST_STATE_CHANGE_FAILURE )
+        {
+            DEBUG_ERR("State change FAILED");
+            return XA_RESULT_INTERNAL_ERROR;
+        }
+        bCtx->waitingasyncop = XA_BOOLEAN_FALSE;
+        DEBUG_INFO_A1("Pipeline in state %s",gst_element_state_get_name(GST_STATE(bCtx->bin)));
+
+        if( GST_STATE(bCtx->bin) > GST_STATE_READY )
+        {   /* let (possible) extraction itf to know new tags  */
+            XAAdaptEvent event = {XA_METADATAEVENTS, XA_ADAPT_MDE_TAGS_AVAILABLE, 0, NULL };
+            XAAdaptationBase_SendAdaptEvents(bCtx, &event );
+        }
+    }
+    DEBUG_API("<-XADynamicSourceItfAdapt_SetSource");
+    return ret;
+}