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#include "qgstreamerrecordercontrol.h"

#include <QtCore/QDebug>

QGstreamerRecorderControl::QGstreamerRecorderControl(QGstreamerCaptureSession *session)

    :QMediaRecorderControl(session), m_session(session), m_state(QMediaRecorder::StoppedState)

{

    connect(m_session, SIGNAL(stateChanged(QGstreamerCaptureSession::State)), SLOT(updateState()));

    connect(m_session, SIGNAL(error(int,QString)), SIGNAL(error(int,QString)));

    connect(m_session, SIGNAL(durationChanged(qint64)), SIGNAL(durationChanged(qint64)));

    m_hasPreviewState = m_session->captureMode() != QGstreamerCaptureSession::Audio;

}

QGstreamerRecorderControl::~QGstreamerRecorderControl()

{

}

QUrl QGstreamerRecorderControl::outputLocation() const

{

    return m_session->outputLocation();

}

bool QGstreamerRecorderControl::setOutputLocation(const QUrl &sink)

{

    m_session->setOutputLocation(sink);

    return true;

}

QMediaRecorder::State QGstreamerRecorderControl::state() const

{

    switch ( m_session->state() ) {

        case QGstreamerCaptureSession::RecordingState:

            return QMediaRecorder::RecordingState;

        case QGstreamerCaptureSession::PausedState:

            return QMediaRecorder::PausedState;

        case QGstreamerCaptureSession::PreviewState:

        case QGstreamerCaptureSession::StoppedState:

            return QMediaRecorder::StoppedState;

    }

    return QMediaRecorder::StoppedState;

}

void QGstreamerRecorderControl::updateState()

{

    QMediaRecorder::State newState = state();

    if (m_state != newState) {

        m_state = newState;

        emit stateChanged(m_state);

    }

}

qint64 QGstreamerRecorderControl::duration() const

{

    return m_session->duration();

}

void QGstreamerRecorderControl::record()

{

    m_session->dumpGraph("before-record");

    if (!m_hasPreviewState || m_session->state() != QGstreamerCaptureSession::StoppedState)

        m_session->setState(QGstreamerCaptureSession::RecordingState);

    else

        emit error(QMediaRecorder::ResourceError, tr("Service has not been started"));

    m_session->dumpGraph("after-record");

}

void QGstreamerRecorderControl::pause()

{

    m_session->dumpGraph("before-pause");

    if (!m_hasPreviewState || m_session->state() != QGstreamerCaptureSession::StoppedState)

        m_session->setState(QGstreamerCaptureSession::PausedState);

    else

        emit error(QMediaRecorder::ResourceError, tr("Service has not been started"));

}

void QGstreamerRecorderControl::stop()

{

    if (!m_hasPreviewState) {

        m_session->setState(QGstreamerCaptureSession::StoppedState);

    } else {

        if (m_session->state() != QGstreamerCaptureSession::StoppedState)

            m_session->setState(QGstreamerCaptureSession::PreviewState);

    }

}