/*

#define ENABLE_GRAPHICS_SURFACE_INTEGRATION

#include "openmaxalwrapper.h"

#ifdef __cplusplus

#include <e32base.h>

#include <mdaaudiosampleplayer.h>  

#include <f32file.h>

#include <videoplayer.h>

#include <videoplayer2.h>

#include <e32std.h>

#include <mmf/common/mmferrors.h>

#include <mmf/common/Mmfbase.h>

#include <MMFMetadataEventConfigConstants.h>

#include <mmf/common/mmfstandardcustomcommands.h>

#ifdef ENABLE_GRAPHICS_SURFACE_INTEGRATION

#include <graphics/surface.h> //TSurfaceId

#include <mmf/common/mmfvideo.h> //TVideoAspectRatio

#include <mediaclientvideodisplay.h>

#include <surfaceeventhandler.h>

#include <mdaaudiosampleeditor.h>

#include <AudioInput.h>

#include "sfmrlocaltimer.h"

#endif

// MetaDataWrite Custom Command UID

#define MAX_EXTENSION_SIZE 10

class CMarkerPositionTimer;

class CPositionUpdateTimer;

NONSHARABLE_CLASS(CMMFBackendEngine) : public CBase,

    {

        ENoUtility,

        EVideoPlayerUtility,

        EAudioPlayerUtility,

        EAudioRecorderUtility

public:

    static CMMFBackendEngine* NewL();

    ~CMMFBackendEngine();

    void Close();

    void Destroy();

    TInt SetRecorderState(TRecorderState state, XAboolean stopCalled);

    TInt GetRecordPosition(XAuint64* position);

    TInt SetPositionUpdatePerioed(XAmillisecond period);

    TInt SetAdaptContext(void* adaptcontext);

    TInt GetCodecId(XAuint32* encoderId);

    TInt GetBitRate(XAuint32* bitrate);

    TInt GetSampleRate(XAmilliHertz* samplerate);

    TInt GetChannels(XAuint32* channels);

    TInt SetDestinationBitRate(XAuint32* bitrate);

    TInt SetDestinationSampleRate(XAmilliHertz* samplerate);

    TInt SetDestinationChannels(XAuint32* channels);

    XAresult CreateAndConfigureWindowL();

    XAresult SetNativeDisplayInformation(void* display_info);

    XAresult ResumePlayback();

    XAresult StopPlayback();

    XAresult GetPlayState(XAuint32 *pState);

    XAresult GetDuration(XAmillisecond *pMsec);

    XAresult GetPosition(XAmillisecond *pMsec);

    XAresult SetPlayAdaptContext(void * adaptcontext);

    XAresult RegisterCallback(xaPlayCallback cbFunction);

    XAresult SetCallbackEventsMask(XAuint32 eventflags);

    XAresult SetMarkerPosition(XAmillisecond mSec);

    XAresult ClearMarkerPosition();

    XAresult SetPositionUpdatePeriod(XAmillisecond mSec);

    XAresult SetPosition(XAmillisecond pMsec);

    XAresult SetRepeats(XAboolean repeat);

    XAresult SetPlayWindow(XAmillisecond start, XAmillisecond end);

    XAresult GetNumStreams(XAuint32* numstreams);

    XAresult GetStreamInfo(XAuint32 streamindex, XAuint32* streamtype);

    XAresult SetActiveState(XAuint32 streamindex, XAboolean active);

    XAresult SetVolume(XAuint32 volume);

    XAresult GetVolume(XAuint32* volume);

    XAresult GetMaxVolume(XAuint32* maxvolume);

public:

    // MMdaObjectStateChangeObserver

    //MMdaAudioPlayerCallback

            const TTimeIntervalMicroSeconds& aDuration);

    void MapcPlayComplete(TInt aError);

    //From MVidePlayerUtilityObserver

    void MvpuoOpenComplete(TInt aError);

    void MvpuoPrepareComplete(TInt aError);

    void MvpuoFrameReady(CFbsBitmap& aFrame, TInt aError);

    void MvpuoPlayComplete(TInt aError);

    void MvpuoEvent(const TMMFEvent& aEvent);

    // From MRebufferCallback

    void MvloLoadingStarted();

    enum TPlayerState

private:

    CMMFBackendEngine();

    void ConstructL();

    void InitAudioRecorderUtilityL();

    void InitAudioPlayerUtilityL();

    void InitVideoPlayerUtilityL();

    void InitPlayerTimersL();

    TInt DetermineAPIToUse(char *uri, TFuncInUse aFunc);

    XAresult DoHandlePlayItfAttributesChanged();

    void DoPostEvent(XAuint32 event);

    TInt InitializeURIForMMFUtil(char *uri);

private:

#ifdef USE_LOCAL_WINDOW_RESOURCES

    CMediaClientVideoDisplay* iMediaClientVideoDisplay;

    TRect m_clipRect;

    TRect m_cropRegion;

    TVideoAspectRatio m_pixelAspectRatio;

    RWindow m_Window;

    TRect m_cropRect;

    TSurfaceId m_surfaceId;

    TVideoRotation m_rotation;

    TReal32 m_scaleWidth;

    TReal32 m_scaleHeight;

    TInt m_horizPos;

    /*TBool m_bWindowReferencePassed;*/

    RWsSession m_ws;

#endif /* USE_LOCAL_WINDOW_RESOURCES */

    /* Holds duration of the media clip opend for playback */

    TTimeIntervalMicroSeconds iMediaDuration;

    /* Holds the playback position to be used for next play command */

    TTimeIntervalMicroSeconds iPlaybackHead;

    /* Holds current XA state of media player object */

    XAuint32 iMediaPlayerState;

    /* Owns */

    CMarkerPositionTimer* iMarkerPositionTimer;

    CPositionUpdateTimer* iPlayItfPositionUpdateTimer;

    /* Owns */

    CWsScreenDevice* m_pScr;

    /* Holds mmf state of media player object */

    TPlayerState iMMFPlayerState;

    /* Property set by client */

    XAuint32 iPlayItfEventFlags;

    /* Property set by client */

    xaPlayCallback iPlayItfCBFunction;

    /* Property set by client */

    XAmillisecond iMarkerPosition;

    /* Property set by client */

    XAmillisecond iPositionUpdatePeriod;

    /* Property set by client (for file without file:///) */

    HBufC* iUri; /* owns */

    TPtr iUriPtr;

    TUriType iUriType;

    /* Property set by client */

    RWsSession* m_pWs;

    /* Property set by client */

    };

#else  /* __cplusplus */

extern int mmf_backend_engine_init(void** engine);

extern int mmf_backend_engine_deinit(void* engine);

extern int mmf_set_recorder_uri(void* context, char* uri, XAuint32 format);

extern void mmf_close(void* context);

extern int mmf_set_adapt_context(void* context, void* adaptcontext);

extern int mmf_start_recording(void* context);

extern int mmf_stop_recording(void* context, XAboolean stopCalled);

extern int mmf_get_record_position(void* context, XAuint64* position);

extern int mmf_set_record_position_update_period(void* context, XAmillisecond msec);

extern int mmf_get_codec_id(void* context, XAuint32* encoderId);

extern int mmf_get_channels(void* context, XAuint32* channelsIn);

extern int mmf_get_samplerate(void* context, XAmilliHertz* sampleRate);

extern int mmf_get_bitrate(void* context, XAuint32* bitRate);

extern int mmf_set_destination_channels(void* context, XAuint32* channelsIn);

extern int mmf_set_destination_samplerate(void* context, XAmilliHertz* sampleRate);

extern int mmf_set_destination_bitrate(void* context, XAuint32* bitRate);

extern XAresult mmf_set_play_adapt_context(void * context, void * adaptcontext);

extern XAresult mmf_set_player_uri(void * context, char * uri, XAuint32 format);

/*extern XAresult mmf_set_window_handle(void * context, void * display_infos);*/

extern XAresult mmf_setup_native_display(void * context, void * display_info);

/*Functions for XAPlayItf*/

extern XAresult mmf_playitf_resume_playback(void * context);

extern XAresult mmf_playitf_pause_playback(void * context);

extern XAresult mmf_playitf_stop_playback(void * context);

extern XAresult mmf_playitf_get_play_state(void * context, XAuint32 * pState);

extern XAresult mmf_playitf_get_duration(void * context, XAmillisecond * pMsec);

extern XAresult mmf_playitf_get_position(void * context, XAmillisecond * pMsec);

extern XAresult mmf_playitf_register_callback(void * context, xaPlayCallback callback);

extern XAresult mmf_playitf_set_callback_events_mask(void * context, XAuint32 eventflags);

extern XAresult mmf_playitf_set_marker_position(void * context, XAmillisecond mSec);

extern XAresult mmf_playitf_clear_marker_position(void * context);

extern XAresult mmf_playitf_set_position_update_period(void * context, XAmillisecond mSec);

extern XAresult mmf_seekitf_set_position(void * context, XAmillisecond mSec);

extern XAresult mmf_seekitf_set_playwindow(void * context, XAmillisecond start, XAmillisecond end);

extern XAresult mmf_seekitf_set_repeats(void * context, XAboolean repeat);

extern XAresult mmf_streaminformationitf_get_numstreams(void * context, XAuint32* numstreams);

extern XAresult mmf_streaminformationitf_get_streaminfo(void * context, XAuint32 streamindex,

extern XAresult mmf_streaminformationitf_get_videoframesize(void * context, XAuint32* height,

extern XAresult mmf_streaminformationitf_set_activestream(void * context, XAuint32 streamindex,

extern XAresult mmf_volumeitf_set_volume(void * context, XAuint32 volume);

extern XAresult mmf_volumeitf_get_volume(void * context, XAuint32* volume);

extern XAresult mmf_volumeitf_get_maxvolume(void * context, XAuint32* volume);

#endif /* __cplusplus */