/*  This file is part of the KDE project.

Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

This library is free software: you can redistribute it and/or modify

it under the terms of the GNU Lesser General Public License as published by

the Free Software Foundation, either version 2.1 or 3 of the License.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License

along with this library.  If not, see <http://www.gnu.org/licenses/>.

*/

#include "audiooutput.h"

#include "audioplayer.h"

#include "defs.h"

#include "dummyplayer.h"

#include "utils.h"

#include "utils.h"

#ifdef PHONON_MMF_VIDEO_SURFACES

#include "videoplayer_surface.h"

#else

#include "videoplayer_dsa.h"

#endif

#include "videowidget.h"

#include "mediaobject.h"

#include <QDir>

#include <QUrl>

QT_BEGIN_NAMESPACE

using namespace Phonon;

using namespace Phonon::MMF;

/*! \class MMF::MediaObject

  \internal

*/

//-----------------------------------------------------------------------------

// Constructor / destructor

//-----------------------------------------------------------------------------

MMF::MediaObject::MediaObject(QObject *parent) : MMF::MediaNode::MediaNode(parent)

                                               , m_recognizerOpened(false)

                                               , m_nextSourceSet(false)

{

    m_player.reset(new DummyPlayer());

    TRACE_CONTEXT(MediaObject::MediaObject, EAudioApi);

    TRACE_ENTRY_0();

    Q_UNUSED(parent);

    TRACE_EXIT_0();

}

MMF::MediaObject::~MediaObject()

{

    TRACE_CONTEXT(MediaObject::~MediaObject, EAudioApi);

    TRACE_ENTRY_0();

    m_file.Close();

    m_fileServer.Close();

    m_recognizer.Close();

    TRACE_EXIT_0();

}

//-----------------------------------------------------------------------------

// Recognizer

//-----------------------------------------------------------------------------

bool MMF::MediaObject::openRecognizer()

{

    TRACE_CONTEXT(MediaObject::openRecognizer, EAudioInternal);

    if (!m_recognizerOpened) {

        TInt err = m_recognizer.Connect();

        if (KErrNone != err) {

            TRACE("RApaLsSession::Connect error %d", err);

            return false;

        }

        err = m_fileServer.Connect();

        if (KErrNone != err) {

            TRACE("RFs::Connect error %d", err);

            return false;

        }

        // This must be called in order to be able to share file handles with

        // the recognizer server (see fileMediaType function).

        err = m_fileServer.ShareProtected();

        if (KErrNone != err) {

            TRACE("RFs::ShareProtected error %d", err);

            return false;

        }

        m_recognizerOpened = true;

    }

    return true;

}

MMF::MediaType MMF::MediaObject::fileMediaType

(const QString& fileName)

{

    TRACE_CONTEXT(MediaObject::fileMediaType, EAudioInternal);

    MediaType result = MediaTypeUnknown;

    if (openRecognizer()) {

        const QHBufC fileNameSymbian(QDir::toNativeSeparators(fileName));

        m_file.Close();

        TInt err = m_file.Open(m_fileServer, *fileNameSymbian, EFileRead | EFileShareReadersOnly);

        if (KErrNone == err) {

            TDataRecognitionResult recognizerResult;

            err = m_recognizer.RecognizeData(m_file, recognizerResult);

            if (KErrNone == err) {

                const TPtrC mimeType = recognizerResult.iDataType.Des();

                result = Utils::mimeTypeToMediaType(mimeType);

            } else {

                TRACE("RApaLsSession::RecognizeData filename %S error %d", fileNameSymbian.data(), err);

            }

        } else {

            TRACE("RFile::Open filename %S error %d", fileNameSymbian.data(), err);

        }

    }

    return result;

}

//-----------------------------------------------------------------------------

// MediaObjectInterface

//-----------------------------------------------------------------------------

void MMF::MediaObject::play()

{

    m_player->play();

}

void MMF::MediaObject::pause()

{

    m_player->pause();

}

void MMF::MediaObject::stop()

{

    m_player->stop();

}

void MMF::MediaObject::seek(qint64 ms)

{

    m_player->seek(ms);

    if (state() == PausedState or state() == PlayingState) {

        emit tick(currentTime());

    }

}

qint32 MMF::MediaObject::tickInterval() const

{

    return m_player->tickInterval();

}

void MMF::MediaObject::setTickInterval(qint32 interval)

{

    m_player->setTickInterval(interval);

}

bool MMF::MediaObject::hasVideo() const

{

    return m_player->hasVideo();

}

bool MMF::MediaObject::isSeekable() const

{

    return m_player->isSeekable();

}

Phonon::State MMF::MediaObject::state() const

{

    return m_player->state();

}

qint64 MMF::MediaObject::currentTime() const

{

    return m_player->currentTime();

}

QString MMF::MediaObject::errorString() const

{

    return m_player->errorString();

}

Phonon::ErrorType MMF::MediaObject::errorType() const

{

    return m_player->errorType();

}

qint64 MMF::MediaObject::totalTime() const

{

    return m_player->totalTime();

}

MediaSource MMF::MediaObject::source() const

{

    return m_source;

}

void MMF::MediaObject::setSource(const MediaSource &source)

{

    switchToSource(source);

}

void MMF::MediaObject::switchToSource(const MediaSource &source)

{

    createPlayer(source);

    m_source = source;

    m_player->open(m_source, m_file);

    emit currentSourceChanged(m_source);

}

void MMF::MediaObject::createPlayer(const MediaSource &source)

{

    TRACE_CONTEXT(MediaObject::createPlayer, EAudioApi);

    TRACE_ENTRY("state %d source.type %d", state(), source.type());

    TRACE_ENTRY("source.type %d", source.type());

    MediaType mediaType = MediaTypeUnknown;

    AbstractPlayer* oldPlayer = m_player.data();

    const bool oldPlayerHasVideo = oldPlayer->hasVideo();

    const bool oldPlayerSeekable = oldPlayer->isSeekable();

    QString errorMessage;

    // Determine media type

    switch (source.type()) {

    case MediaSource::LocalFile:

        mediaType = fileMediaType(source.fileName());

        break;

    case MediaSource::Url:

        {

            const QUrl url(source.url());

            if (url.scheme() == QLatin1String("file")) {

                mediaType = fileMediaType(url.toLocalFile());

            }

            else {

                // Streaming playback is generally not supported by the implementation

                // of the audio player API, so we use CVideoPlayerUtility for both

                // audio and video streaming.

                mediaType = MediaTypeVideo;

            }

        }

        break;

    case MediaSource::Invalid:

    case MediaSource::Disc:

    case MediaSource::Stream:

        errorMessage = tr("Error opening source: type not supported");

        break;

    case MediaSource::Empty:

        TRACE_0("Empty media source");

        break;

    }

    AbstractPlayer* newPlayer = 0;

    // Construct newPlayer using oldPlayer (if not 0) in order to copy

    // parameters (volume, prefinishMark, transitionTime) which may have

    // been set on oldPlayer.

    switch (mediaType) {

    case MediaTypeUnknown:

        TRACE_0("Media type could not be determined");

        newPlayer = new DummyPlayer(oldPlayer);

        errorMessage = tr("Error opening source: media type could not be determined");

        break;

    case MediaTypeAudio:

        newPlayer = new AudioPlayer(this, oldPlayer);

        break;

    case MediaTypeVideo:

#ifdef PHONON_MMF_VIDEO_SURFACES

        newPlayer = SurfaceVideoPlayer::create(this, oldPlayer);

#else

        newPlayer = DsaVideoPlayer::create(this, oldPlayer);

#endif

        break;

    }

    if (oldPlayer)

        emit abstractPlayerChanged(0);

    m_player.reset(newPlayer);

    emit abstractPlayerChanged(newPlayer);

    if (oldPlayerHasVideo != hasVideo()) {

        emit hasVideoChanged(hasVideo());

    }

    if (oldPlayerSeekable != isSeekable()) {

        emit seekableChanged(isSeekable());

    }

    connect(m_player.data(), SIGNAL(totalTimeChanged(qint64)), SIGNAL(totalTimeChanged(qint64)));

    connect(m_player.data(), SIGNAL(stateChanged(Phonon::State,Phonon::State)), SIGNAL(stateChanged(Phonon::State,Phonon::State)));

    connect(m_player.data(), SIGNAL(finished()), SIGNAL(finished()));

    connect(m_player.data(), SIGNAL(bufferStatus(int)), SIGNAL(bufferStatus(int)));

    connect(m_player.data(), SIGNAL(metaDataChanged(QMultiMap<QString,QString>)), SIGNAL(metaDataChanged(QMultiMap<QString,QString>)));

    connect(m_player.data(), SIGNAL(aboutToFinish()), SIGNAL(aboutToFinish()));

    // We need to call setError() after doing the connects, otherwise the

    // error won't be received.

    if (!errorMessage.isEmpty()) {

        Q_ASSERT(m_player);

        m_player->setError(errorMessage);

    }

    TRACE_EXIT_0();

}

void MMF::MediaObject::setNextSource(const MediaSource &source)

{

    m_nextSource = source;

    m_nextSourceSet = true;

}

qint32 MMF::MediaObject::prefinishMark() const

{

    return m_player->prefinishMark();

}

void MMF::MediaObject::setPrefinishMark(qint32 mark)

{

    m_player->setPrefinishMark(mark);

}

qint32 MMF::MediaObject::transitionTime() const

{

    return m_player->transitionTime();

}

void MMF::MediaObject::setTransitionTime(qint32 time)

{

    m_player->setTransitionTime(time);

}

void MMF::MediaObject::volumeChanged(qreal volume)

{

    m_player->volumeChanged(volume);

}

//-----------------------------------------------------------------------------

// MediaNode

//-----------------------------------------------------------------------------

void MMF::MediaObject::connectMediaObject(MediaObject * /*mediaObject*/)

{

    // This function should never be called - see MediaNode::setMediaObject()

    Q_ASSERT_X(false, Q_FUNC_INFO,

        "Connection of MediaObject to MediaObject");

}

void MMF::MediaObject::disconnectMediaObject(MediaObject * /*mediaObject*/)

{

    // This function should never be called - see MediaNode::setMediaObject()

    Q_ASSERT_X(false, Q_FUNC_INFO,

        "Disconnection of MediaObject from MediaObject");

}

//-----------------------------------------------------------------------------

// Video output

//-----------------------------------------------------------------------------

void MMF::MediaObject::setVideoOutput(AbstractVideoOutput* videoOutput)

{

    m_player->setVideoOutput(videoOutput);

}

AbstractPlayer *MMF::MediaObject::abstractPlayer() const

{

    return m_player.data();

}

//-----------------------------------------------------------------------------

// Playlist support

//-----------------------------------------------------------------------------

void MMF::MediaObject::switchToNextSource()

{

    if (m_nextSourceSet) {

        m_nextSourceSet = false;

        switchToSource(m_nextSource);

        play();

    }

}

QT_END_NAMESPACE