videoplayback/videohelix/src/mpxvideoseeker.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 12 Mar 2010 15:43:00 +0200
branchRCL_3
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parent 0 96612d01cf9f
child 9 5294c000a26d
permissions -rw-r--r--
Revision: 201007 Kit: 201008
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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: 7 %
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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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   114
{
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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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   128
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    TInt trickplaySpeed = KDefaultTrickPlaySpeed;
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   130
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    if ( !iForward )
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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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   138
    //
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    MPX_TRAP( iVideoPlaybackCtlr->iPlayer->SetPlayVelocityL( trickplaySpeed ) );
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   140
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   141
#else
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    if ( iPreviousState == EMPXVideoPlaying )
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    {
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        iVideoPlaybackCtlr->iPlayer->PauseL();
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   145
    }
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   146
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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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   151
    {
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        iIncrements *= -1;
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   153
    }
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   154
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    iSeekTimer->Start( 0,
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                       interval,
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                       TCallBack( CMPXVideoSeeker::UpdatePosition, this ) );
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   158
#endif
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   159
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   160
    if ( err == KErrNone )
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   161
    {
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   162
        iTrickPlayTimer->Start( KTrickPlayTimeout,
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   163
                                0,
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   164
                                TCallBack( CMPXVideoSeeker::StopTrickPlay, this ) );
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   165
    }
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}
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   167
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// -------------------------------------------------------------------------------------------------
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// CMPXVideoSeeker::StopSeekingL
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// -------------------------------------------------------------------------------------------------
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   171
//
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   172
void CMPXVideoSeeker::StopSeekingL()
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{
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   174
    MPX_DEBUG(_L("CMPXVideoSeeker::StopSeekingL()"));
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   175
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   176
    TBool seekTimerActive = EFalse;
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   177
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    if ( iTrickPlayTimer->IsActive() )
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    {
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        iTrickPlayTimer->Cancel();
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   181
    }
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   182
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   183
    if ( iSeekTimer->IsActive() )
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   184
    {
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   185
        seekTimerActive = ETrue;
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   186
        iSeekTimer->Cancel();
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   187
    }
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   188
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   189
    //
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   190
    // If it reaches the end of a clip, issue stop
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   191
    //
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   192
    if ( iDuration <= iPosition )
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   193
    {
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   194
        iVideoPlaybackCtlr->iState->HandleEndOfClip();
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   195
    }
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   196
    else
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   197
    {
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   198
        if ( seekTimerActive )
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   199
        {
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   200
            iVideoPlaybackCtlr->iPlayer->SetPositionL( iPosition );
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   201
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   202
            if ( iPreviousState == EMPXVideoPlaying )
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   203
            {
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   204
                iVideoPlaybackCtlr->DoHandleCommandL( EPbCmdPlay );
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   205
            }
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   206
            else if (iPreviousState == EMPXVideoPaused )
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   207
            {
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   208
                iVideoPlaybackCtlr->DoHandleCommandL( EPbCmdPause );
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   209
            }
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   210
            else
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   211
            {
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   212
                iVideoPlaybackCtlr->ChangeState( iPreviousState );
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   213
            }
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   214
        }
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   215
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   216
#if TRICK_PLAY
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   217
        else
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   218
        {
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   219
            //
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   220
            // Start trick play with default speed
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   221
            //
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   222
            MPX_TRAP( iVideoPlaybackCtlr->iPlayer->SetPlayVelocityL( KDefaultPlaySpeed ) );
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   223
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   224
            if ( iPreviousState == EMPXVideoPaused )
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   225
            {
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   226
                iVideoPlaybackCtlr->DoHandleCommandL( EPbCmdPause );
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   227
            }
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            else if ( iPreviousState == EMPXVideoPlaying )
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   229
            {
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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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    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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    MPX_DEBUG(_L("CMPXVideoSeeker::ConvertToSeeking()"));
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    //
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    // Start seeking (increments in every 125 msec)
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    // - ~ 90sec      : Increment is 2 sec
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    // - 91sec~180sec : Increment is 4 sec
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    // - 181sec~      : Increment depends on the duration
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    //                  ( 0.5 % * duration ) + 3 sec
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    //
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    if ( iDuration < KDurationA )
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    {
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        iIncrements = KSpeedAIncrements;
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   299
    }
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    else
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    {
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   302
        if ( iDuration < KDurationB )
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        {
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            iIncrements = KSpeedBIncrements;
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   305
        }
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        else
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        {
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            iIncrements = (TInt)( iDuration / 200 ) + 3;
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        }
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    }
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   311
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    if ( !iForward )
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   313
    {
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   314
        iIncrements *= -1;
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   315
    }
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   316
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   317
    if ( iSeekTimer->IsActive() )
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   318
    {
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   319
        iSeekTimer->Cancel();
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   320
    }
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   321
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   322
    iSeekTimer->Start( 0, KSpeedInterval, TCallBack( CMPXVideoSeeker::UpdatePosition, this ) );
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   323
}
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   324
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// -------------------------------------------------------------------------------------------------
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   326
// CMPXVideoSeeker::UpdatePosition
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// -------------------------------------------------------------------------------------------------
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   328
//
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   329
TInt CMPXVideoSeeker::UpdatePosition( TAny* aPtr )
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{
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   331
    MPX_DEBUG(_L("CMPXVideoSeeker::UpdatePosition()"));
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   332
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   333
    static_cast<CMPXVideoSeeker*>(aPtr)->DoUpdatePosition();
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   334
    return KErrNone;
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   335
}
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   336
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   337
// -------------------------------------------------------------------------------------------------
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   338
// CMPXVideoSeeker::DoUpdatePosition
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// -------------------------------------------------------------------------------------------------
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   340
//
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   341
void CMPXVideoSeeker::DoUpdatePosition()
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{
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   343
    MPX_DEBUG(_L("CMPXVideoSeeker::DoUpdatePosition()"));
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   344
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   345
    iPosition += iIncrements;
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   346
96612d01cf9f Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
    if ( iPosition > iDuration )
96612d01cf9f Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
    {
96612d01cf9f Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
        iPosition = iDuration;
96612d01cf9f Revision: 201001
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parents:
diff changeset
   350
    }
96612d01cf9f Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
    else if ( iPosition < 0 )
96612d01cf9f Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
    {
96612d01cf9f Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
        iPosition = 0;
96612d01cf9f Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
    }
96612d01cf9f Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
    iVideoPlaybackCtlr->iPlaybackMode->UpdateSeekPosition( iPosition );
96612d01cf9f Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
}
96612d01cf9f Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
//  End of File