javauis/mmapi_qt/baseline/src.dsa/cmmavideoplayer.cpp
changeset 23 98ccebc37403
child 26 dc7c549001d5
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/mmapi_qt/baseline/src.dsa/cmmavideoplayer.cpp	Fri May 14 15:47:24 2010 +0300
@@ -0,0 +1,403 @@
+/*
+* Copyright (c) 2002-2007 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:  This class is used for playing video.
+*
+*/
+
+
+//  INCLUDE FILES
+#include <mmf/server/mmffile.h>
+#include <logger.h>
+
+#include "cmmavideoplayer.h"
+#include "mmmadisplay.h"
+#include "mmafunctionserver.h"
+#include "cmmadsawindow.h"
+
+// CONSTANTS
+_LIT(KVideoControlName, "VideoControl");
+
+CMMAVideoPlayer* CMMAVideoPlayer::NewLC(
+    CMMAMMFResolver* aResolver)
+{
+    CMMAVideoPlayer* self =
+        new(ELeave) CMMAVideoPlayer(aResolver);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    return self;
+}
+
+CMMAVideoPlayer::~CMMAVideoPlayer()
+{
+    LOG( EJavaMMAPI, EInfo, "MMA::CMMAVideoPlayer::~CMMAVideoPlayer");
+    if (iDisplay)
+    {
+        TRAPD(err, iDisplay->SetWindowL(NULL));
+        if (err != KErrNone)
+        {
+            __ASSERT_DEBUG(EFalse, User::Invariant());
+        }
+    }
+    delete iDSAWindow;
+    delete iEmptySnapshotImage;
+    delete iActiveSchedulerWait;
+}
+
+CMMAVideoPlayer::CMMAVideoPlayer(
+    CMMAMMFResolver* aResolver):
+        CMMAAudioPlayer(aResolver),
+        iVideoControllerCustomCommands(iController),
+        iVideoPlayControllerCustomCommands(iController)
+{
+}
+
+void CMMAVideoPlayer::ConstructL()
+{
+    CMMAAudioPlayer::ConstructL();
+    iActiveSchedulerWait = new(ELeave)CActiveSchedulerWait;
+}
+
+EXPORT_C void CMMAVideoPlayer::SetPlayerListenerObjectL(jobject aListenerObject,
+        JNIEnv* aJni,
+        MMMAEventPoster* aEventPoster)
+{
+    CMMAPlayer::SetPlayerListenerObjectL(aListenerObject,
+                                         aJni,
+                                         aEventPoster);
+
+    // this method must be called only ones
+    __ASSERT_DEBUG(!iDSAWindow, User::Invariant());
+
+    // create window for videoplayer
+    // event poster is always MMAFunctionServer type.
+
+    iDSAWindow = CMMADSAWindow::NewL(
+                     static_cast< MMAFunctionServer* >(iEventPoster),
+                     this,
+                     &iVideoPlayControllerCustomCommands);
+}
+
+EXPORT_C void CMMAVideoPlayer::SetDisplayL(MMMADisplay* aDisplay)
+{
+    // now it is ready to draw
+    iDisplay = aDisplay;
+    iDisplay->SetWindowL(iDSAWindow);
+
+    // if state < prefeteched then we dont know actual source size yet
+    // and it will be set after prefetch
+    if (iState >= EPrefetched)
+    {
+        SourceSizeChanged();
+    }
+}
+void CMMAVideoPlayer::RealizeL()
+{
+    LOG( EJavaMMAPI, EInfo, "CMMAVideoPlayer::RealizeL");
+    // DataSource must have at least 1 stream or
+    // we must have file to play
+    if ((iSourceStreams.Count() == 0) && !iFileName)
+    {
+        User::Leave(KErrNotEnoughStreams);
+    }
+
+    // If file locator is used, then file is prefetched
+    // in realized state so that FramePositioningControl
+    // can acquire frame count in REALIZED state
+    if (iFileName)
+    {
+        PrefetchFileL();
+        if (!iActiveSchedulerWait->IsStarted())
+        {
+            iActiveSchedulerWait->Start();
+        }
+        // If the player has not changed state during wait,
+        // Then there is an error condition.
+        if (iState != ERealized)
+        {
+            User::Leave(KErrNotSupported);
+        }
+    }
+    else
+    {
+        CMMAPlayer::RealizeL();
+    }
+}
+
+void CMMAVideoPlayer::PrefetchL()
+{
+    LOG( EJavaMMAPI, EInfo, "CMMAVideoPlayer::PrefetchL");
+    if (iFileName)
+    {
+        // File has already been prefetched when realizing
+
+        // If initDisplayMode was called before prefetch,
+        // then the display must notified about source size.
+        if (iDisplay)
+        {
+            SourceSizeChanged();
+        }
+
+        ChangeState(EPrefetched);
+        PostActionCompleted(KErrNone);
+    }
+    else
+    {
+        // Using TDes -- load the whole video
+        iSourceStreams[ 0 ]->ReadAllL();
+    }
+    // CMMASourceStream will notify with ReadCompleted
+}
+
+EXPORT_C void CMMAVideoPlayer::ReadCompletedL(TInt aStatus, const TDesC8& aData)
+{
+    LOG1( EJavaMMAPI, EInfo, "CMMAVideoPlayer::ReadCompletedL: status = %d", aStatus);
+    if (aStatus < KErrNone)
+    {
+        PostActionCompleted(aStatus);
+    }
+    else
+    {
+        TRAPD(err, PrefetchDataL(aData));
+        if (err != KErrNone)
+        {
+            PostActionCompleted(err);
+        }
+        // action completed event will be delivered from handleEvent
+    }
+}
+
+void CMMAVideoPlayer::HandleEvent(const TMMFEvent& aEvent)
+{
+    LOG1( EJavaMMAPI, EInfo, "MMA:CMMAVideoPlayer::HandleEvent %d", aEvent.iEventType.iUid);
+
+    // KNotCompleteVideoError can be notified when video is not complete
+    // ( missing sound ) but still can be played. Because
+    // CMMAAudioPlayer::HandleEvent fails with all negative error codes,
+    // do not call it with KNotCompleteVideoError error when preparing.
+    if ((aEvent.iErrorCode != KNotCompleteVideoError) ||
+            (aEvent.iEventType != KMMFEventCategoryVideoPrepareComplete))
+    {
+        CMMAAudioPlayer::HandleEvent(aEvent);
+    }
+
+    // video opened, preparing
+    if (aEvent.iEventType == KMMFEventCategoryVideoOpenComplete)
+    {
+        if (aEvent.iErrorCode == KErrNone)
+        {
+            TInt prepareError(iVideoPlayControllerCustomCommands.Prepare());
+            if (prepareError != KErrNone)
+            {
+                // opening failed, notifying java
+                PostActionCompleted(prepareError);
+            }
+        }
+        else
+        {
+            // opening failed, notifying java
+            PostActionCompleted(aEvent.iErrorCode);
+        }
+    }
+    // final state of prefetch ( prepare completed )
+    else if (aEvent.iEventType == KMMFEventCategoryVideoPrepareComplete)
+    {
+        // This callback must be handled differently depending on whether
+        // player is created for a file locator or for a stream. When file
+        // locator is used, this callback is made in realized state. For
+        // stream it is made in prefetched state.
+        PrepareDisplay();
+        if (iFileName)
+        {
+            LOG( EJavaMMAPI, EInfo, "CMMAVideoPlayer::HandleEvent: Using filename, change state to REALIZED");
+
+            // If there is an error condition, then the player state is not
+            // changed, which indicates the error condition to StartL when
+            // the ActiveSchedulerWait returns. KNotCompleteVideoError is not
+            // considered as an error condition, instead it indicates that some
+            // elements of the media cannot be played (e.g. video OR audio)
+            if (aEvent.iErrorCode == KErrNone ||
+                    aEvent.iErrorCode == KNotCompleteVideoError)
+            {
+                ChangeState(ERealized);
+            }
+            __ASSERT_DEBUG(iActiveSchedulerWait->IsStarted(), User::Invariant());
+            iActiveSchedulerWait->AsyncStop();
+        }
+        else
+        {
+            LOG( EJavaMMAPI, EInfo, "CMMAVideoPlayer::HandleEvent: Not using filename, change state to PREFETCHED");
+            CompletePrefetch(aEvent.iErrorCode);
+        }
+    }
+    else            // in case of any other event
+    {
+        if (aEvent.iErrorCode != KErrNone)
+        {
+            PostActionCompleted(aEvent.iErrorCode);   //some other error
+        }
+    }
+}
+
+void CMMAVideoPlayer::CompletePrefetch(TInt aError)
+{
+    ELOG1( EJavaMMAPI, "CMMAVideoPlayer::CompletePrefetch + error = %d",aError);
+    // Post KNotCompleteVideoError as KErrNone to the Java side, because
+    // video can be played.
+    if (aError == KNotCompleteVideoError)
+    {
+        LOG( EJavaMMAPI, EInfo, "CMMAVideoPlayer::CompletePrefetch  KNotCompleteVideoError ");
+        // release java
+        PostActionCompleted(KErrNone);
+    }
+    else
+    {
+        LOG( EJavaMMAPI, EInfo, "CMMAVideoPlayer::CompletePrefetch  CompleteVideoError ");
+        // release java
+        PostActionCompleted(aError);
+    }
+
+    if (aError == KErrNone || aError == KNotCompleteVideoError)
+    {
+        ChangeState(EPrefetched);
+    }
+    LOG( EJavaMMAPI, EInfo, "CMMAVideoPlayer::CompletePrefetch - ");
+}
+
+void CMMAVideoPlayer::PrepareDisplay()
+{
+    LOG( EJavaMMAPI, EInfo, "CMMAVideoPlayer::PrepareDisplay +");
+    // construction should have leaved if iDSAWindow does not exist
+    __ASSERT_DEBUG(iDSAWindow,
+                   User::Panic(_L("CMMVideoPlayer::iDSAWindow is null"),
+                               KErrArgument));
+
+    // Video must be initially not visible
+    LOG( EJavaMMAPI, EInfo, "CMMAVideoPlayer::PrepareDisplay: Initially aborting DSA");
+    iVideoPlayControllerCustomCommands.DirectScreenAccessEvent(EAbortDSA);
+
+    //First place where we are certain that source size can be fetched
+    TSize sourceSize;
+
+    TInt err = iVideoControllerCustomCommands.GetVideoFrameSize(sourceSize);
+
+    ELOG1( EJavaMMAPI, "MID::CMMAVideoPlayer::PrepareDisplay: GetVideoFrameSize err = %d", err);
+
+    // Still we did not get the size of video
+    if ((err != KErrNone) ||
+            (sourceSize.iWidth <= 0) ||
+            (sourceSize.iHeight <= 0))
+    {
+        LOG( EJavaMMAPI, EInfo, "MID::CMMAVideoPlayer::PrepareDisplay: No sourcesize found, using DSAWindow size");
+        // setting size to window size (client rect)
+        sourceSize = iDSAWindow->WindowSize();
+    }
+
+    // If 1x1 was got (the default size of form), it must be replaced
+    // with a valid size as controller will not accept 1x1.
+    if ((sourceSize.iWidth < KMMAVideoMinDimension) ||
+            (sourceSize.iHeight < KMMAVideoMinDimension))
+    {
+        LOG( EJavaMMAPI, EInfo, "MID::CMMAVideoPlayer::PrepareDisplay: Unacceptable source size, using failsafe");
+        // This is a special case and ought to be used only in
+        // the rare case that real size is not got from stream.
+        sourceSize = TSize(KMMAVideoMinDimension, KMMAVideoMinDimension);
+    }
+
+    iSourceSize = sourceSize;
+
+    // If init has been already done
+    if (iDisplay)
+    {
+        LOG( EJavaMMAPI, EInfo, "MID::CMMAVideoPlayer::PrepareDisplay: display exists, changing source size");
+        SourceSizeChanged();
+    }
+
+    // Setting (in)visible if something has changed the DSA state
+    // (e.g. prepare). If initDisplayMode is not called, this will always
+    // set visibility to false.
+    iDSAWindow->SetVisible(iDSAWindow->IsVisible(), EFalse);
+    LOG( EJavaMMAPI, EInfo, "CMMAVideoPlayer::PrepareDisplay -");
+}
+
+EXPORT_C const TDesC& CMMAVideoPlayer::Type()
+{
+    return KMMAVideoPlayer;
+}
+
+EXPORT_C TSize CMMAVideoPlayer::SourceSize()
+{
+    return iSourceSize;
+}
+
+EXPORT_C MMMASnapshot::TEncoding CMMAVideoPlayer::TakeSnapshotL(TRequestStatus* aStatus,
+        const TSize& /*aSize*/,
+        const CMMAImageSettings& /*aSettings*/)
+{
+    if (iEmptySnapshotImage)
+    {
+        // Ealier snapshot was not got with SnapshotBitmap method.
+        User::Leave(KErrInUse);
+    }
+    // frame can't be got from video player, but TCK requires that it should
+    // be available. So returning empty image
+    iEmptySnapshotImage = new(ELeave) CFbsBitmap();
+    User::LeaveIfError(iEmptySnapshotImage->Create(TSize(1, 1),
+                       EColor4K));
+
+
+    User::RequestComplete(aStatus, KErrNone);
+
+    // Return raw bitmap encoding and thus SnapshotEncoded() should not
+    // get called later on.
+    return EBitmap;
+}
+
+EXPORT_C CFbsBitmap* CMMAVideoPlayer::SnapshotBitmap()
+{
+    // snapshot is not supported, returning empty image
+    CFbsBitmap* image = iEmptySnapshotImage;
+
+    // ownership is transferred to caller
+    iEmptySnapshotImage = NULL;
+    return image;
+}
+
+EXPORT_C HBufC8* CMMAVideoPlayer::SnapshotEncoded()
+{
+    // This method should never be called.
+    // Asserted in debug build to be sure.
+    __ASSERT_DEBUG(EFalse, User::Invariant());
+
+    return NULL;
+}
+
+EXPORT_C void CMMAVideoPlayer::NotifyWithStringEvent(
+    CMMAPlayerEvent::TEventType aEventType,
+    const TDesC& aStringEventData)
+{
+    PostStringEvent(aEventType, aStringEventData);
+}
+
+EXPORT_C MMMASnapshot* CMMAVideoPlayer::SnapshoterL()
+{
+    return this;
+}
+
+void CMMAVideoPlayer::SourceSizeChanged()
+{
+    iDisplay->SourceSizeChanged(iSourceSize);
+    NotifyWithStringEvent(CMMAPlayerEvent::ESizeChanged, KVideoControlName);
+}
+
+//  END OF FILE