--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/khronosfws/openmax_al/src/mediaplayer/xaseekitf.c	Fri Apr 16 15:29:42 2010 +0300
@@ -0,0 +1,254 @@
+/*
+* 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 <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include "xaseekitf.h"
+
+#ifdef _GSTREAMER_BACKEND_
+#include "XASeekItfAdaptation.h"
+#include "XAPlayItfAdaptation.h"
+#endif
+#include "xathreadsafety.h"
+
+
+/**
+ * XASeekItfImpl* GetImpl(XASeekItf self)
+ * Description: Validate interface pointer and cast it to implementation pointer.
+ */
+static XASeekItfImpl* GetImpl(XASeekItf self)
+{
+    if(self)
+    {
+        XASeekItfImpl* impl = (XASeekItfImpl*)(*self);
+        if(impl && impl == impl->self)
+        {
+            return impl;
+        }
+    }
+    return NULL;
+}
+
+/**
+ * Base interface XASeekItf implementation
+ */
+
+/**
+ * XAresult XASeekItfImpl_SetPosition(XASeekItf self, XAmillisecond pos,
+ *                                    XAuint32 seekMode)
+ * Description: Sets the position of the playback head.
+ **/
+XAresult XASeekItfImpl_SetPosition(XASeekItf self, XAmillisecond pos,
+                                   XAuint32 seekMode)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    XAmillisecond duration = 0;
+    XASeekItfImpl* impl = GetImpl(self);
+    DEBUG_API("->XASeekItfImpl_SetPosition");
+    XA_IMPL_THREAD_SAFETY_ENTRY( XATSMediaPlayer );
+
+    if(!impl)
+    {
+        /* invalid parameter */
+        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XASeekItfImpl_SetPosition");
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+#ifdef _GSTREAMER_BACKEND_
+    /* Get duration of the content */
+    if(XAPlayItfAdapt_GetDuration(impl->adapCtx, &duration) != XA_RESULT_SUCCESS)
+    {
+        /* invalid parameter */
+        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XASeekItfImpl_SetPosition");
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+#endif
+    
+    if(pos > duration)
+    {
+        /* invalid parameter */
+        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XASeekItfImpl_SetPosition");
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+    if(seekMode != XA_SEEKMODE_FAST && seekMode != XA_SEEKMODE_ACCURATE)
+    {
+        /* seek mode unsupported */
+        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );
+        DEBUG_ERR("XA_RESULT_FEATURE_UNSUPPORTED");
+        DEBUG_API("<-XASeekItfImpl_SetPosition");
+        return XA_RESULT_FEATURE_UNSUPPORTED;
+    }
+
+#ifdef _GSTREAMER_BACKEND_
+    ret = XASeekItfAdapt_SetPosition(impl->adapCtx, pos, seekMode);
+#endif
+    if(ret == XA_RESULT_SUCCESS)
+    {
+        impl->playbackPosition = pos;
+        impl->seekMode = seekMode;
+    }
+
+    XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );
+    DEBUG_API("<-XASeekItfImpl_SetPosition");
+    return ret;
+}
+
+/**
+ * XAresult XASeekItfImpl_SetLoop(XASeekItf self, XAboolean loopEnable,
+ *                                XAmillisecond startPos, XAmillisecond endPos)
+ * Description: Enables or disables looping and sets the start and end points of looping.
+ **/
+XAresult XASeekItfImpl_SetLoop(XASeekItf self, XAboolean loopEnable,
+                               XAmillisecond startPos, XAmillisecond endPos)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    XAmillisecond duration = 0;
+    XASeekItfImpl* impl = GetImpl(self);
+    DEBUG_API_A2("->XASeekItfImpl_SetLoop, startPos:%lu, endPos:%lu", startPos, endPos);
+    XA_IMPL_THREAD_SAFETY_ENTRY( XATSMediaPlayer );
+
+    if(!impl || (startPos > endPos))
+    {
+        /* invalid parameter */
+        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XASeekItfImpl_SetLoop");
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+#ifdef _GSTREAMER_BACKEND_
+    /* Get duration of the content */
+    if(XAPlayItfAdapt_GetDuration(impl->adapCtx, &duration) != XA_RESULT_SUCCESS)
+    {
+        /* invalid parameter */
+        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XASeekItfImpl_SetLoop");
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+#endif
+    if(endPos > duration && endPos != XA_TIME_UNKNOWN)
+    {
+        /* invalid parameter */
+        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XASeekItfImpl_SetLoop");
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+#ifdef _GSTREAMER_BACKEND_
+    ret = XASeekItfAdapt_SetLoop(impl->adapCtx, loopEnable, startPos, endPos);
+#endif
+    if(ret == XA_RESULT_SUCCESS)
+    {
+        impl->loopEnable = loopEnable;
+        impl->startPos = startPos;
+        impl->endPos = endPos;
+    }
+
+    XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );
+    DEBUG_API("<-XASeekItfImpl_SetLoop");
+    return ret;
+}
+
+/**
+ * XAresult XASeekItfImpl_GetLoop(XASeekItf self, XAboolean *pLoopEnabled,
+ *                                XAmillisecond *pStartPos,
+ *                                XAmillisecond *pEndPos)
+ * Description: Queries whether looping is enabled or disabled, and retrieves loop points.
+ **/
+XAresult XASeekItfImpl_GetLoop(XASeekItf self, XAboolean *pLoopEnabled,
+                               XAmillisecond *pStartPos,
+                               XAmillisecond *pEndPos)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+
+    XASeekItfImpl* impl = GetImpl(self);
+    DEBUG_API("->XASeekItfImpl_GetLoop");
+
+    if(!impl || !pLoopEnabled || !pStartPos || !pEndPos)
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XASeekItfImpl_GetLoop");
+        /* invalid parameter */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+    *pLoopEnabled = impl->loopEnable;
+    *pStartPos = impl->startPos;
+    *pEndPos = impl->endPos;
+
+    DEBUG_API("<-XASeekItfImpl_GetLoop");
+    return ret;
+}
+
+/**
+ * XASeekItfImpl -specific methods
+ **/
+#ifdef _GSTREAMER_BACKEND_
+
+/**
+ * XASeekItfImpl* XASeekItfImpl_Create()
+ * Description: Allocate and initialize SeekItfImpl.
+ **/
+XASeekItfImpl* XASeekItfImpl_Create( XAAdaptationBaseCtx *adapCtx )
+{
+    XASeekItfImpl *self = (XASeekItfImpl*)
+        calloc(1,sizeof(XASeekItfImpl));
+    DEBUG_API("->XASeekItfImpl_Create");
+    if(self)
+    {
+        /* init itf default implementation */
+        self->itf.GetLoop = XASeekItfImpl_GetLoop;
+        self->itf.SetLoop = XASeekItfImpl_SetLoop;
+        self->itf.SetPosition = XASeekItfImpl_SetPosition;
+
+        /* init variables */
+        self->playbackPosition = 0;
+        self->seekMode = 0;
+        self->loopEnable = XA_BOOLEAN_FALSE;
+        self->startPos = 0;
+        self->endPos = 0;
+
+        self->adapCtx = adapCtx;
+
+        self->self = self;
+    }
+    DEBUG_API("<-XASeekItfImpl_Create");
+    return self;
+}
+#endif
+/**
+ * void XASeekItfImpl_Free(XASeekItfImpl* self)
+ * Description: Free all resources reserved at XASeekItfImpl_Create.
+ **/
+void XASeekItfImpl_Free(XASeekItfImpl* self)
+{
+    DEBUG_API("->XASeekItfImpl_Free");
+    assert(self==self->self);
+    free(self);
+    DEBUG_API("<-XASeekItfImpl_Free");
+}