void MplVideoPlayerBackend::handleEof()
{
qDebug() << "EOF\n";
VideoState old = m_state;
m_state = Done;
emit stateChanged(m_state, old);
emit endOfStream();
}
void Player::onFrameDisplayed(const SharedFrame& frame)
{
int position = frame.get_position();
if (position < m_duration) {
m_position = position;
m_positionSpinner->blockSignals(true);
m_positionSpinner->setValue(position);
m_positionSpinner->blockSignals(false);
m_scrubber->onSeek(position);
}
if (position >= m_duration)
emit endOfStream();
}
STDMETHODIMP Run(REFERENCE_TIME start)
{
HRESULT hr = QBaseFilter::Run(start);
m_start = start;
if (m_inputPin->connected() == 0) {
endOfStream();
} else {
::SetEvent(m_receiveCanWait); //unblocks the flow (this event will block then again)
}
#ifdef FPS_COUNTER
fpsTime.restart();
nbFramesProcessed = 0;
nbFramesDisplayed = 0;
#endif
return hr;
}
void MediaSource::endOfStream(ExceptionCode& ec)
{
endOfStream(emptyAtom, ec);
}
/* Caution: This function is executed on all sorts of strange threads, which should
* not be excessively delayed, deadlocked, or used for anything GUI-related. Primarily,
* we want to emit signals (which will result in queued slot calls) or do queued method
* invocation to handle GUI updates. */
GstBusSyncReply GstVideoPlayerBackend::busHandler(GstBus *bus, GstMessage *msg)
{
Q_UNUSED(bus);
switch (GST_MESSAGE_TYPE(msg))
{
case GST_MESSAGE_BUFFERING:
{
gint percent = 0;
gst_message_parse_buffering(msg, &percent);
qDebug() << "gstreamer: buffering" << percent << "%";
emit bufferingStatus(percent);
}
break;
case GST_MESSAGE_STATE_CHANGED:
{
if (m_state == PermanentError)
break;
GstState oldState, newState;
gst_message_parse_state_changed(msg, &oldState, &newState, 0);
VideoState vpState = m_state;
switch (newState)
{
case GST_STATE_VOID_PENDING:
case GST_STATE_NULL:
if (m_state == Error)
break;
case GST_STATE_READY:
vpState = Stopped;
break;
case GST_STATE_PAUSED:
vpState = Paused;
emit durationChanged(duration());
break;
case GST_STATE_PLAYING:
vpState = Playing;
emit durationChanged(duration());
setSpeed(m_lastspeed);
break;
}
if (vpState != m_state)
{
VideoState old = m_state;
m_state = vpState;
emit stateChanged(m_state, old);
}
}
break;
case GST_MESSAGE_DURATION:
emit durationChanged(duration());
break;
case GST_MESSAGE_EOS:
{
qDebug("gstreamer: end of stream");
VideoState old = m_state;
m_state = Done;
emit stateChanged(m_state, old);
emit endOfStream();
}
break;
case GST_MESSAGE_ERROR:
{
gchar *debug;
GError *error;
gst_message_parse_error(msg, &error, &debug);
qDebug() << "gstreamer: Error:" << error->message;
qDebug() << "gstreamer: Debug:" << debug;
/* Set the error message, but don't move to the error state, because that will stop playback,
* possibly incorrectly. */
m_errorMessage = QString::fromLatin1(error->message);
g_free(debug);
g_error_free(error);
}
break;
case GST_MESSAGE_WARNING:
{
gchar *debug;
GError *error;
gst_message_parse_warning(msg, &error, &debug);
qDebug() << "gstreamer: Warning:" << error->message;
qDebug() << "gstreamer: Debug:" << debug;
g_free(debug);
g_error_free(error);
}
break;
default:
break;
}
return GST_BUS_PASS;
}
Player::Player(QWidget *parent)
: QWidget(parent)
, m_position(0)
, m_isMeltedPlaying(-1)
, m_zoomToggleFactor(Settings.playerZoom() == 0.0f? 1.0f : Settings.playerZoom())
, m_pauseAfterOpen(false)
, m_monitorScreen(-1)
, m_currentTransport(0)
{
setObjectName("Player");
Mlt::Controller::singleton();
setupActions(this);
m_playIcon = actionPlay->icon();
m_pauseIcon = actionPause->icon();
// Create a layout.
QVBoxLayout *vlayout = new QVBoxLayout(this);
vlayout->setObjectName("playerLayout");
vlayout->setContentsMargins(0, 0, 0, 0);
vlayout->setSpacing(4);
// Add tab bar to indicate/select what is playing: clip, playlist, timeline.
m_tabs = new QTabBar;
m_tabs->setShape(QTabBar::RoundedSouth);
m_tabs->addTab(tr("Source"));
m_tabs->addTab(tr("Program"));
m_tabs->setTabEnabled(ProgramTabIndex, false);
QHBoxLayout* tabLayout = new QHBoxLayout;
tabLayout->addWidget(m_tabs);
tabLayout->addStretch();
connect(m_tabs, SIGNAL(tabBarClicked(int)), SLOT(onTabBarClicked(int)));
// Add the layouts for managing video view, scroll bars, and audio controls.
m_videoLayout = new QHBoxLayout;
m_videoLayout->setSpacing(4);
m_videoLayout->setContentsMargins(0, 0, 0, 0);
vlayout->addLayout(m_videoLayout, 10);
vlayout->addStretch();
m_videoScrollWidget = new QWidget;
m_videoLayout->addWidget(m_videoScrollWidget, 10);
m_videoLayout->addStretch();
QGridLayout* glayout = new QGridLayout(m_videoScrollWidget);
glayout->setSpacing(0);
glayout->setContentsMargins(0, 0, 0, 0);
// Add the video widgets.
m_videoWidget = QWidget::createWindowContainer(qobject_cast<QWindow*>(MLT.videoWidget()));
m_videoWidget->setMinimumSize(QSize(320, 180));
glayout->addWidget(m_videoWidget, 0, 0);
m_verticalScroll = new QScrollBar(Qt::Vertical);
glayout->addWidget(m_verticalScroll, 0, 1);
m_verticalScroll->hide();
m_horizontalScroll = new QScrollBar(Qt::Horizontal);
glayout->addWidget(m_horizontalScroll, 1, 0);
m_horizontalScroll->hide();
// Add the volume and signal level meter
m_volumePopup = new QFrame(this, Qt::Popup);
QVBoxLayout *volumeLayoutV = new QVBoxLayout(m_volumePopup);
volumeLayoutV->setContentsMargins(0, 0, 0, 0);
volumeLayoutV->addSpacerItem(new QSpacerItem(0, 0, QSizePolicy::Minimum, QSizePolicy::Expanding));
QBoxLayout *volumeLayoutH = new QHBoxLayout;
volumeLayoutH->setSpacing(0);
volumeLayoutH->setContentsMargins(0, 0, 0, 0);
volumeLayoutH->addWidget(new AudioScale);
m_volumeSlider = new QSlider(Qt::Vertical);
m_volumeSlider->setFocusPolicy(Qt::NoFocus);
m_volumeSlider->setMinimumHeight(VOLUME_SLIDER_HEIGHT);
m_volumeSlider->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
volumeLayoutH->addWidget(m_volumeSlider);
volumeLayoutV->addLayout(volumeLayoutH);
m_volumeSlider->setRange(0, 99);
m_volumeSlider->setValue(Settings.playerVolume());
onVolumeChanged(m_volumeSlider->value());
m_savedVolume = MLT.volume();
m_volumeSlider->setToolTip(tr("Adjust the audio volume"));
connect(m_volumeSlider, SIGNAL(valueChanged(int)), this, SLOT(onVolumeChanged(int)));
// Add mute-volume buttons layout
#ifdef Q_OS_MAC
if (Settings.theme() == "system")
volumeLayoutH = new QVBoxLayout;
else
#endif
volumeLayoutH = new QHBoxLayout;
volumeLayoutH->setContentsMargins(0, 0, 0, 0);
volumeLayoutH->setSpacing(0);
volumeLayoutV->addLayout(volumeLayoutH);
// Add mute button
QPushButton* muteButton = new QPushButton(this);
muteButton->setFocusPolicy(Qt::NoFocus);
muteButton->setObjectName(QString::fromUtf8("muteButton"));
muteButton->setIcon(QIcon::fromTheme("dialog-cancel", QIcon(":/icons/oxygen/16x16/actions/dialog-cancel.png")));
muteButton->setToolTip(tr("Silence the audio"));
muteButton->setCheckable(true);
muteButton->setChecked(Settings.playerMuted());
onMuteButtonToggled(Settings.playerMuted());
volumeLayoutH->addWidget(muteButton);
connect(muteButton, SIGNAL(toggled(bool)), this, SLOT(onMuteButtonToggled(bool)));
// This hack realizes the volume popup geometry for on_actionVolume_triggered().
m_volumePopup->show();
m_volumePopup->hide();
// Add the scrub bar.
m_scrubber = new ScrubBar(this);
m_scrubber->setFocusPolicy(Qt::NoFocus);
m_scrubber->setObjectName("scrubBar");
m_scrubber->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
vlayout->addWidget(m_scrubber);
// Add toolbar for transport controls.
QToolBar* toolbar = new QToolBar(tr("Transport Controls"), this);
int s = style()->pixelMetric(QStyle::PM_SmallIconSize);
toolbar->setIconSize(QSize(s, s));
toolbar->setContentsMargins(0, 0, 0, 0);
QWidget *spacer = new QWidget(this);
spacer->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
m_positionSpinner = new TimeSpinBox(this);
m_positionSpinner->setToolTip(tr("Current position"));
m_positionSpinner->setEnabled(false);
m_positionSpinner->setKeyboardTracking(false);
m_durationLabel = new QLabel(this);
m_durationLabel->setToolTip(tr("Total Duration"));
m_durationLabel->setText(" / 00:00:00:00");
m_durationLabel->setFixedWidth(m_positionSpinner->width());
m_inPointLabel = new QLabel(this);
m_inPointLabel->setText("--:--:--:--");
m_inPointLabel->setToolTip(tr("In Point"));
m_inPointLabel->setFixedWidth(m_inPointLabel->width());
m_selectedLabel = new QLabel(this);
m_selectedLabel->setText("--:--:--:--");
m_selectedLabel->setToolTip(tr("Selected Duration"));
m_selectedLabel->setFixedWidth(m_selectedLabel->width());
toolbar->addWidget(m_positionSpinner);
toolbar->addWidget(m_durationLabel);
toolbar->addWidget(spacer);
toolbar->addAction(actionSkipPrevious);
toolbar->addAction(actionRewind);
toolbar->addAction(actionPlay);
toolbar->addAction(actionFastForward);
toolbar->addAction(actionSkipNext);
// Add zoom button to toolbar.
m_zoomButton = new QToolButton;
QMenu* zoomMenu = new QMenu(this);
m_zoomFitAction = zoomMenu->addAction(
QIcon::fromTheme("zoom-fit-best", QIcon(":/icons/oxygen/32x32/actions/zoom-fit-best")),
tr("Zoom Fit"), this, SLOT(zoomFit()));
m_zoomOriginalAction = zoomMenu->addAction(
QIcon::fromTheme("zoom-original", QIcon(":/icons/oxygen/32x32/actions/zoom-original")),
tr("Zoom 100%"), this, SLOT(zoomOriginal()));
m_zoomOutAction = zoomMenu->addAction(
QIcon::fromTheme("zoom-out", QIcon(":/icons/oxygen/32x32/actions/zoom-out")),
tr("Zoom 50%"), this, SLOT(zoomOut()));
m_zoomInAction = zoomMenu->addAction(
QIcon::fromTheme("zoom-in", QIcon(":/icons/oxygen/32x32/actions/zoom-in")),
tr("Zoom 200%"), this, SLOT(zoomIn()));
connect(m_zoomButton, SIGNAL(toggled(bool)), SLOT(toggleZoom(bool)));
m_zoomButton->setMenu(zoomMenu);
m_zoomButton->setPopupMode(QToolButton::MenuButtonPopup);
m_zoomButton->setCheckable(true);
m_zoomButton->setToolTip(tr("Toggle zoom"));
toolbar->addWidget(m_zoomButton);
toolbar->addAction(actionVolume);
m_volumeWidget = toolbar->widgetForAction(actionVolume);
// Add in-point and selected duration labels to toolbar.
spacer = new QWidget(this);
spacer->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
toolbar->addWidget(spacer);
toolbar->addWidget(m_inPointLabel);
toolbar->addWidget(m_selectedLabel);
vlayout->addWidget(toolbar);
vlayout->addLayout(tabLayout);
connect(MLT.videoWidget(), SIGNAL(frameDisplayed(const SharedFrame&)), this, SLOT(onFrameDisplayed(const SharedFrame&)));
connect(actionPlay, SIGNAL(triggered()), this, SLOT(togglePlayPaused()));
connect(actionPause, SIGNAL(triggered()), this, SLOT(pause()));
connect(actionFastForward, SIGNAL(triggered()), this, SLOT(fastForward()));
connect(actionRewind, SIGNAL(triggered()), this, SLOT(rewind()));
connect(m_scrubber, SIGNAL(seeked(int)), this, SLOT(seek(int)));
connect(m_scrubber, SIGNAL(inChanged(int)), this, SLOT(onInChanged(int)));
connect(m_scrubber, SIGNAL(outChanged(int)), this, SLOT(onOutChanged(int)));
connect(m_positionSpinner, SIGNAL(valueChanged(int)), this, SLOT(seek(int)));
connect(m_positionSpinner, SIGNAL(editingFinished()), this, SLOT(setFocus()));
connect(this, SIGNAL(endOfStream()), this, SLOT(pause()));
connect(this, SIGNAL(zoomChanged(float)), MLT.videoWidget(), SLOT(setZoom(float)));
connect(m_horizontalScroll, SIGNAL(valueChanged(int)), MLT.videoWidget(), SLOT(setOffsetX(int)));
connect(m_verticalScroll, SIGNAL(valueChanged(int)), MLT.videoWidget(), SLOT(setOffsetY(int)));
setFocusPolicy(Qt::StrongFocus);
}