videoplayerengine.cpp

《基于Symbian OS的手机开发与应用实践》这本书的配套源码。

/*
* ============================================================================
*  Name     : CVideoPlayerEngine from VideoPlayerEngine.cpp
*  Part of  : VideoPlayer
*  Created  : 31.01.2006 by ToBeReplacedByAuthor
*  Implementation notes:
*  
*  Version  :
*  Copyright: ToBeReplacedByCopyright
* ============================================================================
*/

// INCLUDE FILES
#include <coemain.h>
#include <mmf\common\mmferrors.h>
#include "VideoPlayerEngine.h"

// ================= MEMBER FUNCTIONS =======================

// Two-phased constructor.
CVideoPlayerEngine* CVideoPlayerEngine::NewL(MObserver& aObserver, 
    RWindowBase& aWindow)
    {
    CVideoPlayerEngine* self = new(ELeave) CVideoPlayerEngine(aObserver, aWindow);
    CleanupStack::PushL( self );
    self->ConstructL();
    CleanupStack::Pop();

    return self;
    }

// destructor
CVideoPlayerEngine::~CVideoPlayerEngine()
    {
    delete iVideoPlayer;
    }

// from MVideoPlayerUtilityObserver
void CVideoPlayerEngine::MvpuoOpenComplete(TInt aError)
    {
    if(aError==KErrNone)
        {
        iVideoPlayer->Prepare();
        }
    else
        {
        iObserver.OnComplete(aError);
        }
    }

void CVideoPlayerEngine::MvpuoPrepareComplete(TInt aError)
    {
    if((aError==KErrNone)||(aError==KErrMMPartialPlayback))
        {
        iVideoPlayer->Play();
        }
    else
        {
        iObserver.OnComplete(aError);
        }
    }

void CVideoPlayerEngine::MvpuoFrameReady(CFbsBitmap& aFrame,TInt aError)
    {
    }

void CVideoPlayerEngine::MvpuoPlayComplete(TInt aError)
    {
    iVideoPlayer->Close();
    iObserver.OnComplete(aError);
    }

void CVideoPlayerEngine::MvpuoEvent(const TMMFEvent& aEvent)
    {
    iVideoPlayer->Stop();
    }

// new functions
void CVideoPlayerEngine::PlayL(const TFileName& aFileName)
    {
    delete iVideoPlayer;
    iVideoPlayer = NULL;
    CCoeEnv* coeEnv = CCoeEnv::Static();
    TRect rect(iWindow.Position(), iWindow.Size());
    iVideoPlayer = CVideoPlayerUtility::NewL( *this, EMdaPriorityNormal, 
        EMdaPriorityPreferenceNone, coeEnv->WsSession(), 
        *(coeEnv->ScreenDevice()), iWindow, rect, rect);
    iVideoPlayer->OpenFileL(aFileName);
    }


void CVideoPlayerEngine::Play()
    {
    if(iVideoPlayer!=NULL)
        {
        iVideoPlayer->Play();
        }
    }

void CVideoPlayerEngine::PauseL()
    {
    if(iVideoPlayer!=NULL)
        {
        iVideoPlayer->PauseL();
        }
    }

void CVideoPlayerEngine::Stop()
    {
    if(iVideoPlayer!=NULL)
        {
        iVideoPlayer->Stop();
        }
    }

// constructor
CVideoPlayerEngine::CVideoPlayerEngine(MObserver& aObserver, RWindowBase& aWindow)
: iObserver(aObserver), iWindow(aWindow)
    {
    }

// EPOC default constructor can leave.
void CVideoPlayerEngine::ConstructL()
    {
    }

// End of File