/*

* 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 "xaplayitf.h"

#ifdef _GSTREAMER_BACKEND_  

#include "XAPlayItfAdaptation.h"

#endif

#include "xaplayitfadaptationmmf.h"

#include "xathreadsafety.h"

#include <string.h>

void* vfHandle;

/* XAPlayItfImpl* GetImpl

 * Description: Validate interface pointer and cast it to implementation pointer.

 */

static XAPlayItfImpl* GetImpl(XAPlayItf self)

{

    if(self)

    {

        XAPlayItfImpl* impl = (XAPlayItfImpl*)(*self);

        if(impl && impl == impl->self)

        {

            return impl;

        }

    }

    return NULL;

}

/**

 * Base interface XAPlayItf implementation

 */

/**

 * XAresult XAPlayItfImpl_SetPlayState(XAPlayItf self, XAuint32 state)

 * Description: Requests a transition of the player into the given play state.

 **/

XAresult XAPlayItfImpl_SetPlayState(XAPlayItf self, XAuint32 state)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API_A1("->XAPlayItfImpl_SetPlayState %s",PLAYSTATENAME(state));

    XA_IMPL_THREAD_SAFETY_ENTRY( XATSMediaPlayer );

    if( !impl || state < XA_PLAYSTATE_STOPPED || state > XA_PLAYSTATE_PLAYING )

    {

        /* invalid parameter */

        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_SetPlayState");

        return XA_RESULT_PARAMETER_INVALID;

    }

    /* check is play state changed, if not do nothing */

    if(state != impl->playbackState)

    {

        if(state == XA_PLAYSTATE_PLAYING)

        {

#ifdef _GSTREAMER_BACKEND_

        XAPlayItfAdapt_GetPosition(impl->adapCtx, &(impl->lastPosition));

#endif        

        }

        if(impl->isMMFPlayback)

        {

           ret = XAPlayItfAdaptMMF_SetPlayState(impl->adaptCtxMMF, state);    

        }

        else

        {

#ifdef _GSTREAMER_BACKEND_

        ret = XAPlayItfAdapt_SetPlayState(impl->adapCtx, state);

#endif        

        }

        if(ret == XA_RESULT_SUCCESS)

        {

            impl->playbackState = state;

            if(state == XA_PLAYSTATE_STOPPED || state == XA_PLAYSTATE_PAUSED)

            {

                impl->isMarkerPosCbSend = XA_BOOLEAN_FALSE;

                impl->lastPosition = 0;

            }

        }

    }

    XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );

    DEBUG_API("<-XAPlayItfImpl_SetPlayState");

    return ret;

}

/**

 * XAresult XAPlayItfImpl_GetPlayState(XAPlayItf self, XAuint32 *pState)

 * Description: Gets the player's current play state.

 **/

XAresult XAPlayItfImpl_GetPlayState(XAPlayItf self, XAuint32 *pState)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API("->XAPlayItfImpl_GetPlayState");

    if(!impl || !pState)

    {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_GetPlayState");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

    }

    *pState = impl->playbackState;

    DEBUG_API_A1("<-XAPlayItfImpl_GetPlayState: %s",PLAYSTATENAME(impl->playbackState));

    return ret;

}

/**

 * XAresult XAPlayItfImpl_GetDuration(XAPlayItf self, XAmillisecond *pMsec)

 * Description: Gets the duration of the current content, in milliseconds.

 **/

XAresult XAPlayItfImpl_GetDuration(XAPlayItf self, XAmillisecond *pMsec)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API("->XAPlayItfImpl_GetDuration");

    XA_IMPL_THREAD_SAFETY_ENTRY( XATSMediaPlayer );

    if(!impl || !pMsec)

    {

        /* invalid parameter */

        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_GetDuration");

        return XA_RESULT_PARAMETER_INVALID;

    }

#ifdef _GSTREAMER_BACKEND_

    ret = XAPlayItfAdapt_GetDuration(impl->adapCtx, pMsec);

#endif

    XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );

    DEBUG_API("<-XAPlayItfImpl_GetDuration");

    return ret;

}

/**

 * XAresult XAPlayItfImpl_GetPosition(XAPlayItf self, XAmillisecond *pMsec)

 * Description: Returns the current position of the playback head relative

 * to the beginning of the content.

 **/

XAresult XAPlayItfImpl_GetPosition(XAPlayItf self, XAmillisecond *pMsec)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API("->XAPlayItfImpl_GetPosition");

    XA_IMPL_THREAD_SAFETY_ENTRY( XATSMediaPlayer );

    if(!impl || !pMsec)

    {

        /* invalid parameter */

        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_GetPosition");

        return XA_RESULT_PARAMETER_INVALID;

    }

    if ( impl->playbackState == XA_PLAYSTATE_STOPPED )

    {

    	*pMsec = 0;

    	DEBUG_API("<-XAPlayItfImpl_GetPosition");

      XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );    	

    	return XA_RESULT_SUCCESS;

    }

#ifdef _GSTREAMER_BACKEND_

    ret = XAPlayItfAdapt_GetPosition(impl->adapCtx, pMsec);

#endif

    XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );

    DEBUG_API("<-XAPlayItfImpl_GetPosition");

    return ret;

}

/**

 * XAresult XAPlayItfImpl_RegisterCallback(XAPlayItf self, xaPlayCallback callback,

 *                                         void *pContext)

 * Description: Sets the playback callback function.

 **/

XAresult XAPlayItfImpl_RegisterCallback(XAPlayItf self, xaPlayCallback callback,

                                        void *pContext)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API("->XAPlayItfImpl_RegisterCallback");

    if(!impl)

    {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_RegisterCallback");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

    }

    /* callback may be NULL (to remove callback) */

    impl->callback = callback;

    impl->cbcontext = pContext;

    impl->cbPtrToSelf = self;

    DEBUG_API("<-XAPlayItfImpl_RegisterCallback");

    return ret;

}

/**

 * XAresult XAPlayItfImpl_SetCallbackEventsMask(XAPlayItf self, XAuint32 eventFlags)

 * Description: Enables/disables notification of playback events.

 **/

XAresult XAPlayItfImpl_SetCallbackEventsMask(XAPlayItf self, XAuint32 eventFlags)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API("->XAPlayItfImpl_SetCallbackEventsMask");

    XA_IMPL_THREAD_SAFETY_ENTRY( XATSMediaPlayer );

    if(!impl || ( eventFlags > (XA_PLAYEVENT_HEADATEND | XA_PLAYEVENT_HEADATMARKER |

                  XA_PLAYEVENT_HEADATNEWPOS | XA_PLAYEVENT_HEADMOVING | XA_PLAYEVENT_HEADSTALLED) ) )

    {

        /* invalid parameter */

        XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_SetCallbackEventsMask");

        return XA_RESULT_PARAMETER_INVALID;

    }

    impl->eventFlags = eventFlags;

#ifdef _GSTREAMER_BACKEND_

    /* enable position tracking if client wants so */

    if( (eventFlags & (XA_PLAYEVENT_HEADATMARKER | XA_PLAYEVENT_HEADATNEWPOS))

        &&  impl->adapCtx && !impl->positionupdateOn)

    {

        ret = XAPlayItfAdapt_EnablePositionTracking(impl->adapCtx, XA_BOOLEAN_TRUE);

        if( ret == XA_RESULT_SUCCESS )

        {

            impl->positionupdateOn = XA_BOOLEAN_TRUE;

        }

    }

    else if( !(eventFlags & (XA_PLAYEVENT_HEADATMARKER | XA_PLAYEVENT_HEADATNEWPOS))

            &&  impl->adapCtx && impl->positionupdateOn)

    {

        ret = XAPlayItfAdapt_EnablePositionTracking(impl->adapCtx, XA_BOOLEAN_FALSE);

        if( ret == XA_RESULT_SUCCESS )

        {

            impl->positionupdateOn = XA_BOOLEAN_FALSE;

        }

    }

#endif

    XA_IMPL_THREAD_SAFETY_EXIT( XATSMediaPlayer );

    DEBUG_API("<-XAPlayItfImpl_SetCallbackEventsMask");

    return ret;

}

/**

 * XAresult XAPlayItfImpl_GetCallbackEventsMask(XAPlayItf self, XAuint32 *pEventFlags)

 * Description: Queries for the notification state (enabled/disabled) of playback events.

 **/

XAresult XAPlayItfImpl_GetCallbackEventsMask(XAPlayItf self, XAuint32 *pEventFlags)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API("->XAPlayItfImpl_GetCallbackEventsMask");

    if(!impl || !pEventFlags)

    {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_GetCallbackEventsMask");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

    }

    *pEventFlags = impl->eventFlags;

    DEBUG_API("<-XAPlayItfImpl_GetCallbackEventsMask");

    return ret;

}

/**

 * XAresult XAPlayItfImpl_SetMarkerPosition(XAPlayItf self, XAmillisecond mSec)

 * Description: Sets the position of the playback marker.

 **/

XAresult XAPlayItfImpl_SetMarkerPosition(XAPlayItf self, XAmillisecond mSec)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAmillisecond duration = 0;

    XAPlayItfImpl* impl = NULL;

    DEBUG_API_A1("->XAPlayItfImpl_SetMarkerPosition: %lu ms", mSec);

    /* Get duration of the content */

    if(XAPlayItfImpl_GetDuration(self, &duration) != XA_RESULT_SUCCESS)

    {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_SetMarkerPosition");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

    }

    impl = GetImpl(self);

    if(!impl || mSec > duration)

    {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_SetMarkerPosition");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

    }

    impl->markerPosition = mSec;

    impl->isMarkerPosCbSend = XA_BOOLEAN_FALSE;

    DEBUG_API("<-XAPlayItfImpl_SetMarkerPosition");

    return ret;

}

/**

 * XAresult XAPlayItfImpl_ClearMarkerPosition(XAPlayItf self)

 * Description: Clears marker.

 **/

XAresult XAPlayItfImpl_ClearMarkerPosition(XAPlayItf self)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API("->XAPlayItfImpl_ClearMarkerPosition");

    if(!impl)

    {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_ClearMarkerPosition");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

    }

    impl->isMarkerPosCbSend = XA_BOOLEAN_FALSE;

    impl->markerPosition = NO_POSITION;

    DEBUG_API("<-XAPlayItfImpl_ClearMarkerPosition");

    return ret;

}

/**

 * XAresult XAPlayItfImpl_GetMarkerPosition(XAPlayItf self, XAmillisecond *pMsec)

 * Description: Queries the position of playback marker.

 **/

XAresult XAPlayItfImpl_GetMarkerPosition(XAPlayItf self, XAmillisecond *pMsec)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API("->XAPlayItfImpl_GetMarkerPosition");

    if(!impl || !pMsec)

    {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_GetMarkerPosition");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

    }

    if(impl->markerPosition == NO_POSITION)

    {

        DEBUG_ERR("XA_RESULT_PRECONDITIONS_VIOLATED");

        DEBUG_API("<-XAPlayItfImpl_GetMarkerPosition");

        /*marker is not set */

        return XA_RESULT_PRECONDITIONS_VIOLATED;

    }

    *pMsec = impl->markerPosition;

    DEBUG_API("<-XAPlayItfImpl_GetMarkerPosition");

    return ret;

}

/**

 * XAresult XAPlayItfImpl_SetPositionUpdatePeriod(XAPlayItf self, XAmillisecond mSec)

 * Description: Sets the interval between periodic position notifications.

 **/

XAresult XAPlayItfImpl_SetPositionUpdatePeriod(XAPlayItf self, XAmillisecond mSec)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API_A1("->XAPlayItfImpl_SetPositionUpdatePeriod, %lu mSec", mSec);

    if(!impl )

    {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_SetPositionUpdatePeriod");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

    }

    impl->positionUpdatePeriod = mSec;

    DEBUG_API("<-XAPlayItfImpl_SetPositionUpdatePeriod");

    return ret;

}

/**

 * XAresult XAPlayItfImpl_GetPositionUpdatePeriod(XAPlayItf self, XAmillisecond *pMsec)

 * Description: Queries the interval between periodic position notifications.

 **/

XAresult XAPlayItfImpl_GetPositionUpdatePeriod(XAPlayItf self, XAmillisecond *pMsec)

{

    XAresult ret = XA_RESULT_SUCCESS;

    XAPlayItfImpl* impl = GetImpl(self);

    DEBUG_API("->XAPlayItfImpl_GetPositionUpdatePeriod");

    if(!impl || !pMsec)

    {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAPlayItfImpl_GetPositionUpdatePeriod");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

    }

    *pMsec = impl->positionUpdatePeriod;

    DEBUG_API("<-XAPlayItfImpl_GetPositionUpdatePeriod");

    return ret;

}

/**

 * XAPlayItfImpl -specific methods

 **/

/**

 * XAPlayItfImpl* XAPlayItfImpl_Create()

 * Description: Allocate and initialize PlayItfImpl

 **/

XAPlayItfImpl* XAPlayItfImpl_Create( 

#ifdef _GSTREAMER_BACKEND_

        XAAdaptationBaseCtx *adapCtx,

#endif        

        XAAdaptationBaseMMFCtx *adaptationCtxMMF )

{

    XAPlayItfImpl *self;

    DEBUG_API("->XAPlayItfImpl_Create");

    self = (XAPlayItfImpl*)calloc(1,sizeof(XAPlayItfImpl));

    if(self)

    {

        /* init itf default implementation */

        self->itf.ClearMarkerPosition = XAPlayItfImpl_ClearMarkerPosition;

        self->itf.GetCallbackEventsMask = XAPlayItfImpl_GetCallbackEventsMask;

        self->itf.GetDuration = XAPlayItfImpl_GetDuration;

        self->itf.GetMarkerPosition = XAPlayItfImpl_GetMarkerPosition;

        self->itf.GetPlayState = XAPlayItfImpl_GetPlayState;

        self->itf.GetPosition = XAPlayItfImpl_GetPosition;

        self->itf.GetPositionUpdatePeriod = XAPlayItfImpl_GetPositionUpdatePeriod;

        self->itf.RegisterCallback = XAPlayItfImpl_RegisterCallback;

        self->itf.SetCallbackEventsMask = XAPlayItfImpl_SetCallbackEventsMask;

        self->itf.SetMarkerPosition = XAPlayItfImpl_SetMarkerPosition;

        self->itf.SetPlayState = XAPlayItfImpl_SetPlayState;

        self->itf.SetPositionUpdatePeriod = XAPlayItfImpl_SetPositionUpdatePeriod;

        /* init variables */

        self->callback = NULL;

        self->cbcontext = NULL;

        self->playbackState = XA_PLAYSTATE_STOPPED;

        self->eventFlags = 0;

        self->markerPosition = NO_POSITION;

        self->positionUpdatePeriod = PLAYITF_DEFAULT_UPDATE_PERIOD;

        self->lastPosition = START_POSITION;

#ifdef _GSTREAMER_BACKEND_

        self->adapCtx = adapCtx;

#endif        

        self->adaptCtxMMF = adaptationCtxMMF;

        self->cbPtrToSelf = NULL;

        self->isMarkerPosCbSend = XA_BOOLEAN_FALSE;

#ifdef _GSTREAMER_BACKEND_  

        XAAdaptationBase_AddEventHandler( adapCtx, &XAPlayItfImpl_AdaptCb, XA_PLAYITFEVENTS, self );

#endif

        self->self = self;

    }

    DEBUG_API("<-XAPlayItfImpl_Create");

    return self;

}

/* void XAPlayItfImpl_Free(XAPlayItfImpl* self)

 * Description: Free all resources reserved at XAPlayItfImpl_Create

 */

void XAPlayItfImpl_Free(XAPlayItfImpl* self)

{

    DEBUG_API("->XAPlayItfImpl_Free");

    assert(self==self->self);

#ifdef _GSTREAMER_BACKEND_   

    XAAdaptationBase_RemoveEventHandler( self->adapCtx, &XAPlayItfImpl_AdaptCb );

#endif    

    free(self);

    DEBUG_API("<-XAPlayItfImpl_Free");

}

#ifdef _GSTREAMER_BACKEND_  

/* void XAPlayItfImpl_AdaptCb

 * Description: Listen changes in adaptation

 */

void XAPlayItfImpl_AdaptCb( void *pHandlerCtx, XAAdaptEvent *event )

{

    XAPlayItfImpl* impl = (XAPlayItfImpl*)pHandlerCtx;

    XAuint32 newpos = 0;

    DEBUG_API("->XAPlayItfImpl_AdaptCb");

    XA_IMPL_THREAD_SAFETY_ENTRY_FOR_VOID_FUNCTIONS( XATSMediaPlayer );

    if(!impl)

    {

        DEBUG_ERR("XAPlayItfImpl_AdaptCb, invalid context pointer!");

        DEBUG_API("<-XAPlayItfImpl_AdaptCb");

        XA_IMPL_THREAD_SAFETY_EXIT_FOR_VOID_FUNCTIONS( XATSMediaPlayer );

        return;