videoplayback/videohelix/src/mpxvideoseeker.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 15 Mar 2010 12:40:47 +0200
branchRCL_3
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parent 0 96612d01cf9f
child 11 8970fbd719ec
permissions -rw-r--r--
Revision: 201009 Kit: 201010
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/*
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Seek or trickplay
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 *
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*/
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// Version : %version: 8 %
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// INCLUDE FILES
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#include <mpxplaybackpluginobserver.h>
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#include "mpxvideoseeker.h"
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#include "mpxvideoplaybackcontroller.h"
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#include "mpxvideo_debug.h"
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// CONSTANTS
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#if TRICK_PLAY
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const TInt KDefaultPlaySpeed(100);        // 1x
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const TInt KDefaultTrickPlaySpeed(400);   // 4x
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#else
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const TInt KTrickPlayTimeout(5000000);    // 5 sec
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const TInt KSpeedInterval(125000);        // 125 msec
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const TInt KDurationA(90000000);          // 90 sec
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const TInt KDurationB(180000000);         // 180 sec
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const TInt64 KSpeedAIncrements(2000000);  // 2 sec
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const TInt64 KSpeedBIncrements(4000000);  // 4 sec
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#endif
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// ============================ MEMBER FUNCTIONS ===================================================
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// -------------------------------------------------------------------------------------------------
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// CMPXVideoSeeker::CMPXVideoSeeker
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// C++ default constructor can NOT contain any code, that might leave.
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// -------------------------------------------------------------------------------------------------
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//
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CMPXVideoSeeker::CMPXVideoSeeker( CMPXVideoPlaybackController* aVideoPlaybackCtlr )
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    : iVideoPlaybackCtlr( aVideoPlaybackCtlr )
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{
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    MPX_DEBUG(_L("CMPXVideoSeeker::CMPXVideoSeeker()"));
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}
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// -------------------------------------------------------------------------------------------------
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// CMPXVideoSeeker::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -------------------------------------------------------------------------------------------------
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//
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void CMPXVideoSeeker::ConstructL()
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{
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    MPX_DEBUG(_L("CMPXVideoSeeker::ConstructL()"));
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    iTrickPlayTimer = CPeriodic::NewL( CActive::EPriorityStandard );
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    iSeekTimer = CPeriodic::NewL( CActive::EPriorityStandard );
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}
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// -------------------------------------------------------------------------------------------------
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// CMPXVideoSeeker::NewL
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// Two-phased constructor.
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// -------------------------------------------------------------------------------------------------
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//
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CMPXVideoSeeker* CMPXVideoSeeker::NewL( CMPXVideoPlaybackController* aVideoPlaybackCtlr )
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{
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    MPX_DEBUG(_L("CMPXVideoSeeker::NewL()"));
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    CMPXVideoSeeker* self = new( ELeave ) CMPXVideoSeeker( aVideoPlaybackCtlr );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop();
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    return self;
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}
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// -------------------------------------------------------------------------------------------------
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// CMPXVideoSeeker::~CMPXVideoSeeker
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// Destructor
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// -------------------------------------------------------------------------------------------------
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//
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CMPXVideoSeeker::~CMPXVideoSeeker()
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{
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    MPX_DEBUG(_L("CMPXVideoSeeker::~CMPXVideoSeeker()"));
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    if ( iTrickPlayTimer )
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    {
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        iTrickPlayTimer->Cancel();
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        delete iTrickPlayTimer;
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    }
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    if ( iSeekTimer )
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    {
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        iSeekTimer->Cancel();
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        delete iSeekTimer;
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    }
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}
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// -------------------------------------------------------------------------------------------------
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// CMPXVideoSeeker::StartSeeking
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// -------------------------------------------------------------------------------------------------
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//
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void CMPXVideoSeeker::StartSeekingL( TBool aForward,
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                                     TMPXVideoPlaybackState aState,
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                                     TInt64 aPosition,
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                                     TInt64 aDuration )
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{
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   115
    MPX_DEBUG(_L("CMPXVideoSeeker::StartSeekingL() forward = (%d)"), aForward );
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   116
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    TInt err = KErrNone;
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    iPreviousState = aState;
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   119
    iForward = aForward;
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    iPosition = aPosition;
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    iDuration = aDuration;
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   122
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#if TRICK_PLAY
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    if ( iPreviousState == EMPXVideoPaused )
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    {
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        iVideoPlaybackCtlr->iPlayer->Play();
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    }
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    TInt trickplaySpeed = KDefaultTrickPlaySpeed;
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9
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    if ( ! iForward )
0
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    {
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        trickplaySpeed *= -1;
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    }
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   135
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    //
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    // Start trick play with 4x speed as default
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    //
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    MPX_TRAP( iVideoPlaybackCtlr->iPlayer->SetPlayVelocityL( trickplaySpeed ) );
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   140
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#else
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    if ( iPreviousState == EMPXVideoPlaying )
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    {
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   144
        iVideoPlaybackCtlr->iPlayer->PauseL();
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   145
    }
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    iIncrements = KSpeedAIncrements / 2;
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    TInt interval = KSpeedInterval * 2;
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   149
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    if ( !iForward )
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    {
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        iIncrements *= -1;
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    }
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9
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    if ( ! iSeekTimer->IsActive() )
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    {
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        iSeekTimer->Start( 0,
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                           interval,
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                           TCallBack( CMPXVideoSeeker::UpdatePosition, this ) );
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    }
0
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#endif
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    if ( err == KErrNone )
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    {
9
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        if ( ! iTrickPlayTimer->IsActive() )
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   166
        {
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            iTrickPlayTimer->Start( KTrickPlayTimeout,
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   168
                                    0,
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   169
                                    TCallBack( CMPXVideoSeeker::StopTrickPlay, this ) );
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        }
0
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   171
    }
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}
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   173
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// -------------------------------------------------------------------------------------------------
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// CMPXVideoSeeker::StopSeekingL
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   176
// -------------------------------------------------------------------------------------------------
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//
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   178
void CMPXVideoSeeker::StopSeekingL()
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{
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    MPX_DEBUG(_L("CMPXVideoSeeker::StopSeekingL()"));
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   181
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    TBool seekTimerActive = EFalse;
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   183
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    if ( iTrickPlayTimer->IsActive() )
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    {
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   186
        iTrickPlayTimer->Cancel();
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   187
    }
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   188
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   189
    if ( iSeekTimer->IsActive() )
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   190
    {
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        seekTimerActive = ETrue;
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   192
        iSeekTimer->Cancel();
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   193
    }
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   194
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    //
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    // If it reaches the end of a clip, issue stop
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   197
    //
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   198
    if ( iDuration <= iPosition )
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   199
    {
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   200
        iVideoPlaybackCtlr->iState->HandleEndOfClip();
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   201
    }
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   202
    else
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   203
    {
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        if ( seekTimerActive )
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        {
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   206
            iVideoPlaybackCtlr->iPlayer->SetPositionL( iPosition );
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   207
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            if ( iPreviousState == EMPXVideoPlaying )
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   209
            {
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   210
                iVideoPlaybackCtlr->DoHandleCommandL( EPbCmdPlay );
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   211
            }
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   212
            else if (iPreviousState == EMPXVideoPaused )
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   213
            {
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   214
                iVideoPlaybackCtlr->DoHandleCommandL( EPbCmdPause );
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   215
            }
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   216
            else
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            {
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   218
                iVideoPlaybackCtlr->ChangeState( iPreviousState );
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   219
            }
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        }
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   221
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   222
#if TRICK_PLAY
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   223
        else
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   224
        {
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            //
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   226
            // Start trick play with default speed
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            //
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            MPX_TRAP( iVideoPlaybackCtlr->iPlayer->SetPlayVelocityL( KDefaultPlaySpeed ) );
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   229
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            if ( iPreviousState == EMPXVideoPaused )
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            {
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                iVideoPlaybackCtlr->DoHandleCommandL( EPbCmdPause );
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            }
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            else if ( iPreviousState == EMPXVideoPlaying )
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            {
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                iVideoPlaybackCtlr->DoHandleCommandL( EPbCmdPlay );
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            }
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        }
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#endif
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    }
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}
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// -------------------------------------------------------------------------------------------------
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// CMPXVideoSeeker::StopTrickPlay
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// -------------------------------------------------------------------------------------------------
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//
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TInt CMPXVideoSeeker::StopTrickPlay( TAny* aPtr )
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{
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    MPX_DEBUG(_L("CMPXVideoSeeker::StopTrickPlay()"));
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	static_cast<CMPXVideoSeeker*>(aPtr)->DoStopTrickPlay();
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	return KErrNone;
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}
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// -------------------------------------------------------------------------------------------------
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// CMPXVideoSeeker::DoStopTrickPlay
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// -------------------------------------------------------------------------------------------------
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//
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void CMPXVideoSeeker::DoStopTrickPlay()
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{
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   263
    MPX_DEBUG(_L("CMPXVideoSeeker::DoStopTrickPlay()"));
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    TInt err = KErrNone;
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    //
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    // Stop trick play
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    //
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    if ( iTrickPlayTimer->IsActive() )
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    {
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        iTrickPlayTimer->Cancel();
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    }
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#if TRICK_PLAY
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    MPX_TRAP( err,
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              iVideoPlaybackCtlr->iPlayer->SetPlayVelocityL( KDefaultPlaySpeed );
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              iVideoPlaybackCtlr->iPlayer->PauseL() );
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#endif
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    if ( err == KErrNone )
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    {
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        ConvertToSeeking();
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    }
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}
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// -------------------------------------------------------------------------------------------------
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// CMPXVideoSeeker::ConvertToSeeking
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// -------------------------------------------------------------------------------------------------
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//
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void CMPXVideoSeeker::ConvertToSeeking()
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{
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   293
    MPX_DEBUG(_L("CMPXVideoSeeker::ConvertToSeeking()"));
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   294
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    //
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   296
    // Start seeking (increments in every 125 msec)
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   297
    // - ~ 90sec      : Increment is 2 sec
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   298
    // - 91sec~180sec : Increment is 4 sec
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    // - 181sec~      : Increment depends on the duration
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   300
    //                  ( 0.5 % * duration ) + 3 sec
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   301
    //
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   302
    if ( iDuration < KDurationA )
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   303
    {
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        iIncrements = KSpeedAIncrements;
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   305
    }
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   306
    else
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   307
    {
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   308
        if ( iDuration < KDurationB )
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   309
        {
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   310
            iIncrements = KSpeedBIncrements;
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   311
        }
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   312
        else
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   313
        {
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   314
            iIncrements = (TInt)( iDuration / 200 ) + 3;
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   315
        }
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   316
    }
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   317
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   318
    if ( !iForward )
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   319
    {
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   320
        iIncrements *= -1;
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   321
    }
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   322
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   323
    if ( iSeekTimer->IsActive() )
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   324
    {
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   325
        iSeekTimer->Cancel();
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   326
    }
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parents:
diff changeset
   327
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   328
    iSeekTimer->Start( 0, KSpeedInterval, TCallBack( CMPXVideoSeeker::UpdatePosition, this ) );
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   329
}
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   330
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   331
// -------------------------------------------------------------------------------------------------
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   332
// CMPXVideoSeeker::UpdatePosition
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   333
// -------------------------------------------------------------------------------------------------
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   334
//
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diff changeset
   335
TInt CMPXVideoSeeker::UpdatePosition( TAny* aPtr )
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   336
{
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   337
    MPX_DEBUG(_L("CMPXVideoSeeker::UpdatePosition()"));
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parents:
diff changeset
   338
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diff changeset
   339
    static_cast<CMPXVideoSeeker*>(aPtr)->DoUpdatePosition();
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   340
    return KErrNone;
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   341
}
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parents:
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   342
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   343
// -------------------------------------------------------------------------------------------------
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   344
// CMPXVideoSeeker::DoUpdatePosition
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   345
// -------------------------------------------------------------------------------------------------
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   346
//
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void CMPXVideoSeeker::DoUpdatePosition()
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{
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    MPX_DEBUG(_L("CMPXVideoSeeker::DoUpdatePosition()"));
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    iPosition += iIncrements;
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    if ( iPosition > iDuration )
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    {
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        iPosition = iDuration;
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    }
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    else if ( iPosition < 0 )
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    {
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        iPosition = 0;
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    }
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    iVideoPlaybackCtlr->iPlaybackMode->UpdateSeekPosition( iPosition );
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}
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//  End of File