CaptureDeviceInfo this instance started to create
* the preview of.
* * Because the creation of the preview is asynchronous, it's possible to * request the preview of one and the same device multiple times. Which may * lead to failures because of, for example, busy devices and/or resources * (as is the case with LTI-CIVIL and video4linux2). *
*/ private CaptureDeviceInfo videoDeviceInPreview; /** * ThePlayer depicting the preview of the currently selected
* CaptureDeviceInfo.
*/
private Player videoPlayerInPreview;
/**
* Creates the panel.
*/
public MediaConfigurationPanel()
{
super(new GridLayout(0, 1, HGAP, VGAP));
int[] types
= new int[]
{
DeviceConfigurationComboBoxModel.AUDIO,
DeviceConfigurationComboBoxModel.VIDEO
};
for (int type : types)
add(createControls(type));
}
/**
* Listens and shows the video in the video container when needed.
* @param event the event when player has ready visual component.
* @param videoContainer the container.
*/
private void controllerUpdateForPreview(ControllerEvent event,
Container videoContainer)
{
if (event instanceof ConfigureCompleteEvent)
{
Processor player = (Processor) event.getSourceController();
/*
* Use SwScaler for the scaling since it produces an image with
* better quality.
*/
TrackControl[] trackControls = player.getTrackControls();
if ((trackControls != null) && (trackControls.length != 0))
try
{
for (TrackControl trackControl : trackControls)
{
SwScaler playerScaler = new SwScaler();
trackControl.setCodecChain(
new Codec[] { playerScaler });
break;
}
}
catch (UnsupportedPlugInException upiex)
{
logger.warn("Failed to add SwScaler to codec chain", upiex);
}
// Turn the Processor into a Player.
try
{
player.setContentDescriptor(null);
}
catch (NotConfiguredError nce)
{
logger.error(
"Failed to set ContentDescriptor of Processor",
nce);
}
player.realize();
}
else if (event instanceof RealizeCompleteEvent)
{
Player player = (Player) event.getSourceController();
Component video = player.getVisualComponent();
showPreview(videoContainer, video, player);
player.start();
}
}
/**
* Creates the ui controls for portaudio.
* @param portAudioPanel the panel
* @param parentPanel the parent panel
*/
private void createPortAudioControls(
JPanel portAudioPanel, JPanel parentPanel)
{
GridBagConstraints constraints = new GridBagConstraints();
constraints.fill = GridBagConstraints.HORIZONTAL;
constraints.anchor = GridBagConstraints.NORTHWEST;
constraints.gridx = 0;
constraints.weightx = 0;
constraints.weighty = 0;
constraints.gridy = 0;
portAudioPanel.add(new JLabel(getLabelText(
DeviceConfigurationComboBoxModel.AUDIO_CAPTURE)), constraints);
constraints.gridy = 1;
portAudioPanel.add(new JLabel(getLabelText(
DeviceConfigurationComboBoxModel.AUDIO_PLAYBACK)), constraints);
constraints.gridy = 2;
portAudioPanel.add(new JLabel(getLabelText(
DeviceConfigurationComboBoxModel.AUDIO_NOTIFY)), constraints);
constraints.weightx = 1;
constraints.gridx = 1;
constraints.gridy = 0;
JComboBox captureCombo = new JComboBox();
captureCombo.setEditable(false);
captureCombo.setModel(
new DeviceConfigurationComboBoxModel(
mediaService.getDeviceConfiguration(),
DeviceConfigurationComboBoxModel.AUDIO_CAPTURE));
portAudioPanel.add(captureCombo, constraints);
constraints.gridy = 1;
JComboBox playbackCombo = new JComboBox();
playbackCombo.setEditable(false);
playbackCombo.setModel(
new DeviceConfigurationComboBoxModel(
mediaService.getDeviceConfiguration(),
DeviceConfigurationComboBoxModel.AUDIO_PLAYBACK));
portAudioPanel.add(playbackCombo, constraints);
constraints.gridy = 2;
JComboBox notifyCombo = new JComboBox();
notifyCombo.setEditable(false);
notifyCombo.setModel(
new DeviceConfigurationComboBoxModel(
mediaService.getDeviceConfiguration(),
DeviceConfigurationComboBoxModel.AUDIO_NOTIFY));
portAudioPanel.add(notifyCombo, constraints);
constraints.gridy = 3;
constraints.insets = new Insets(10,0,0,0);
final SIPCommCheckBox echoCancelCheckBox = new SIPCommCheckBox(
NeomediaActivator.getResources().getI18NString(
"impl.media.configform.ECHOCANCEL"));
// first set the selected one than add the listener
// in order to avoid saving tha value when using the default one
// and only showing to user without modification
echoCancelCheckBox.setSelected(
mediaService.getDeviceConfiguration().isEchoCancelEnabled());
echoCancelCheckBox.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e)
{
mediaService.getDeviceConfiguration().setEchoCancel(
echoCancelCheckBox.isSelected(), true);
}
});
portAudioPanel.add(echoCancelCheckBox, constraints);
constraints.gridy = 4;
constraints.insets = new Insets(0,0,0,0);
final SIPCommCheckBox denoiseCheckBox = new SIPCommCheckBox(
NeomediaActivator.getResources().getI18NString(
"impl.media.configform.DENOISE"));
// first set the selected one than add the listener
// in order to avoid saving tha value when using the default one
// and only showing to user without modification
denoiseCheckBox.setSelected(
mediaService.getDeviceConfiguration().isDenoiseEnabled());
denoiseCheckBox.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e)
{
mediaService.getDeviceConfiguration().setDenoise(
denoiseCheckBox.isSelected(), true);
}
});
portAudioPanel.add(denoiseCheckBox, constraints);
parentPanel.setBorder(
BorderFactory.createTitledBorder(
NeomediaActivator.getResources().getI18NString(
"impl.media.configform.DEVICES")));
}
/**
* Creates all the controls for a type(AUDIO or VIDEO)
* @param type the type.
* @return the build Component.
*/
private Component createControls(int type)
{
final JComboBox comboBox = new JComboBox();
comboBox.setEditable(false);
comboBox
.setModel(
new DeviceConfigurationComboBoxModel(
mediaService.getDeviceConfiguration(),
type));
/*
* We provide additional configuration properties for PortAudio such as
* input audio device, output audio device and audio device for playback
* of notifications.
*/
final JPanel portAudioPanel;
final JPanel portAudioParentPanel;
if (type == DeviceConfigurationComboBoxModel.AUDIO)
{
portAudioPanel
= new TransparentPanel(new GridBagLayout());
portAudioParentPanel = new TransparentPanel(new BorderLayout());
comboBox.addItemListener(new ItemListener()
{
public void itemStateChanged(ItemEvent e)
{
if(e.getStateChange() == ItemEvent.SELECTED)
{
if(DeviceConfiguration
.AUDIO_SYSTEM_PORTAUDIO.equals(e.getItem()))
{
createPortAudioControls(
portAudioPanel, portAudioParentPanel);
}
else
{
portAudioPanel.removeAll();
portAudioParentPanel.setBorder(null);
revalidate();
repaint();
}
}
}
});
if(comboBox
.getSelectedItem()
.equals(DeviceConfiguration.AUDIO_SYSTEM_PORTAUDIO))
createPortAudioControls(portAudioPanel, portAudioParentPanel);
}
else
{
portAudioPanel = null;
portAudioParentPanel = null;
}
JLabel label = new JLabel(getLabelText(type));
label.setDisplayedMnemonic(getDisplayedMnemonic(type));
label.setLabelFor(comboBox);
Container firstContainer = new TransparentPanel(new GridBagLayout());
GridBagConstraints firstConstraints = new GridBagConstraints();
firstConstraints.anchor = GridBagConstraints.NORTHWEST;
firstConstraints.gridx = 0;
firstConstraints.gridy = 0;
firstConstraints.weightx = 0;
firstContainer.add(label, firstConstraints);
firstConstraints.gridx = 1;
firstConstraints.weightx = 1;
firstContainer.add(comboBox, firstConstraints);
Container secondContainer =
new TransparentPanel(new GridLayout(1, 0, HGAP, VGAP));
// if creating controls for audio will add devices panel
// otherwise it is video controls and will add preview panel
if (portAudioPanel != null)
{
// add portAudioPanel in new panel on north, as for some reason
// anchor = GridBagConstraints.NORTHWEST doesn't work
// and all components are vertically centered
portAudioParentPanel.add(portAudioPanel, BorderLayout.NORTH);
secondContainer.add(portAudioParentPanel);
}
else
{
comboBox.setLightWeightPopupEnabled(false);
secondContainer.add(createPreview(type, comboBox));
}
secondContainer.add(createEncodingControls(type));
Container container = new TransparentPanel(new GridBagLayout());
GridBagConstraints constraints = new GridBagConstraints();
constraints.fill = GridBagConstraints.HORIZONTAL;
constraints.gridx = 0;
constraints.gridy = 0;
constraints.weightx = 1;
constraints.weighty = 0;
container.add(firstContainer, constraints);
constraints.fill = GridBagConstraints.BOTH;
constraints.gridy = 1;
constraints.weighty = 1;
container.add(secondContainer, constraints);
return container;
}
/**
* Creates Component for the encodings of type(AUDIO or VIDEO).
* @param type the type
* @return the component.
*/
private Component createEncodingControls(int type)
{
ResourceManagementService resources = NeomediaActivator.getResources();
String key;
final JTable table = new JTable();
table.setShowGrid(false);
table.setTableHeader(null);
key = "impl.media.configform.ENCODINGS";
JLabel label = new JLabel(resources.getI18NString(key));
label.setDisplayedMnemonic(resources.getI18nMnemonic(key));
label.setLabelFor(table);
key = "impl.media.configform.UP";
final JButton upButton = new JButton(resources.getI18NString(key));
upButton.setMnemonic(resources.getI18nMnemonic(key));
upButton.setOpaque(false);
key = "impl.media.configform.DOWN";
final JButton downButton = new JButton(resources.getI18NString(key));
downButton.setMnemonic(resources.getI18nMnemonic(key));
downButton.setOpaque(false);
Container buttonBar = new TransparentPanel(new GridLayout(0, 1));
buttonBar.add(upButton);
buttonBar.add(downButton);
Container container = new TransparentPanel(new GridBagLayout());
GridBagConstraints constraints = new GridBagConstraints();
constraints.anchor = GridBagConstraints.NORTHWEST;
constraints.fill = GridBagConstraints.HORIZONTAL;
constraints.gridwidth = 2;
constraints.gridx = 0;
constraints.gridy = 0;
constraints.weightx = 0;
constraints.weighty = 0;
container.add(label, constraints);
constraints.anchor = GridBagConstraints.CENTER;
constraints.fill = GridBagConstraints.BOTH;
constraints.gridwidth = 1;
constraints.gridx = 0;
constraints.gridy = 1;
constraints.weightx = 1;
constraints.weighty = 1;
container.add(new JScrollPane(table), constraints);
constraints.anchor = GridBagConstraints.NORTHEAST;
constraints.fill = GridBagConstraints.NONE;
constraints.gridwidth = 1;
constraints.gridx = 1;
constraints.gridy = 1;
constraints.weightx = 0;
constraints.weighty = 0;
container.add(buttonBar, constraints);
table.setModel(new EncodingConfigurationTableModel(mediaService
.getEncodingConfiguration(), type));
/*
* The first column contains the check boxes which enable/disable their
* associated encodings and it doesn't make sense to make it wider than
* the check boxes.
*/
TableColumnModel tableColumnModel = table.getColumnModel();
TableColumn tableColumn = tableColumnModel.getColumn(0);
tableColumn.setMaxWidth(tableColumn.getMinWidth());
ListSelectionListener tableSelectionListener =
new ListSelectionListener()
{
public void valueChanged(ListSelectionEvent event)
{
if (table.getSelectedRowCount() == 1)
{
int selectedRow = table.getSelectedRow();
if (selectedRow > -1)
{
upButton.setEnabled(selectedRow > 0);
downButton.setEnabled(selectedRow < (table
.getRowCount() - 1));
return;
}
}
upButton.setEnabled(false);
downButton.setEnabled(false);
}
};
table.getSelectionModel().addListSelectionListener(
tableSelectionListener);
tableSelectionListener.valueChanged(null);
ActionListener buttonListener = new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
Object source = event.getSource();
boolean up;
if (source == upButton)
up = true;
else if (source == downButton)
up = false;
else
return;
move(table, up);
}
};
upButton.addActionListener(buttonListener);
downButton.addActionListener(buttonListener);
return container;
}
/**
* Creates preview for the device(video) in the video container.
* @param device the device
* @param videoContainer the container
* @throws IOException a problem accessing the device.
* @throws MediaException a problem getting preview.
*/
private void createPreview(CaptureDeviceInfo device,
final Container videoContainer)
throws IOException,
MediaException
{
videoContainer.removeAll();
if (videoPlayerInPreview != null)
disposePlayer(videoPlayerInPreview);
if (device == null)
return;
DataSource dataSource = Manager.createDataSource(device.getLocator());
Dimension size = videoContainer.getPreferredSize();
/*
* Don't let the size be uselessly small just because the videoContainer
* has too small a preferred size.
*/
if ((size.width < 128) || (size.height < 96))
{
size.width = 128;
size.height = 96;
}
VideoMediaStreamImpl
.selectVideoSize(dataSource, size.width, size.height);
// A Player is documented to be created on a connected DataSource.
dataSource.connect();
Processor player = Manager.createProcessor(dataSource);
videoPlayerInPreview = player;
player.addControllerListener(new ControllerListener()
{
public void controllerUpdate(ControllerEvent event)
{
controllerUpdateForPreview(event, videoContainer);
}
});
player.configure();
}
/**
* Create preview component.
* @param type type
* @param comboBox the options.
* @return the component.
*/
private Component createPreview(int type, final JComboBox comboBox)
{
final Container preview;
if (type == DeviceConfigurationComboBoxModel.VIDEO)
{
JLabel noPreview =
new JLabel(NeomediaActivator.getResources().getI18NString(
"impl.media.configform.NO_PREVIEW"));
noPreview.setHorizontalAlignment(SwingConstants.CENTER);
noPreview.setVerticalAlignment(SwingConstants.CENTER);
preview = createVideoContainer(noPreview);
final ActionListener comboBoxListener = new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
Object selection = comboBox.getSelectedItem();
CaptureDeviceInfo device = null;
if (selection
instanceof
DeviceConfigurationComboBoxModel.CaptureDevice)
device
= ((DeviceConfigurationComboBoxModel.CaptureDevice)
selection)
.info;
if ((device != null) && device.equals(videoDeviceInPreview))
return;
Exception exception;
try
{
createPreview(device, preview);
exception = null;
}
catch (IOException ex)
{
exception = ex;
}
catch (MediaException ex)
{
exception = ex;
}
if (exception != null)
{
logger.error(
"Failed to create preview for device " + device,
exception);
device = null;
}
videoDeviceInPreview = device;
}
};
comboBox.addActionListener(comboBoxListener);
/*
* We have to initialize the controls to reflect the configuration
* at the time of creating this instance. Additionally, because the
* video preview will stop when it and its associated controls
* become unnecessary, we have to restart it when the mentioned
* controls become necessary again. We'll address the two goals
* described by pretending there's a selection in the video combo
* box when the combo box in question becomes displayable.
*/
comboBox.addHierarchyListener(new HierarchyListener()
{
public void hierarchyChanged(HierarchyEvent event)
{
if (((event.getChangeFlags()
& HierarchyEvent.DISPLAYABILITY_CHANGED)
!= 0)
&& comboBox.isDisplayable())
comboBoxListener.actionPerformed(null);
}
});
} else
preview = new TransparentPanel();
return preview;
}
/**
* Creates the video container.
* @param noVideoComponent the container component.
* @return the video container.
*/
private Container createVideoContainer(Component noVideoComponent)
{
return new VideoContainer(noVideoComponent);
}
/**
* Dispose the player used for the preview.
* @param player the player.
*/
private void disposePlayer(Player player)
{
player.stop();
player.deallocate();
player.close();
if ((videoPlayerInPreview != null)
&& videoPlayerInPreview.equals(player))
videoPlayerInPreview = null;
}
/**
* The mnemonic for a type.
* @param type audio or video type.
* @return the mnemonic.
*/
private char getDisplayedMnemonic(int type)
{
switch (type)
{
case DeviceConfigurationComboBoxModel.AUDIO:
return NeomediaActivator.getResources().getI18nMnemonic(
"impl.media.configform.AUDIO");
case DeviceConfigurationComboBoxModel.VIDEO:
return NeomediaActivator.getResources().getI18nMnemonic(
"impl.media.configform.VIDEO");
default:
throw new IllegalArgumentException("type");
}
}
/**
* A label for a type.
* @param type the type.
* @return the label.
*/
private String getLabelText(int type)
{
switch (type)
{
case DeviceConfigurationComboBoxModel.AUDIO:
return NeomediaActivator.getResources().getI18NString(
"impl.media.configform.AUDIO");
case DeviceConfigurationComboBoxModel.AUDIO_CAPTURE:
return NeomediaActivator.getResources().getI18NString(
"impl.media.configform.AUDIO_IN");
case DeviceConfigurationComboBoxModel.AUDIO_NOTIFY:
return NeomediaActivator.getResources().getI18NString(
"impl.media.configform.AUDIO_NOTIFY");
case DeviceConfigurationComboBoxModel.AUDIO_PLAYBACK:
return NeomediaActivator.getResources().getI18NString(
"impl.media.configform.AUDIO_OUT");
case DeviceConfigurationComboBoxModel.VIDEO:
return NeomediaActivator.getResources().getI18NString(
"impl.media.configform.VIDEO");
default:
throw new IllegalArgumentException("type");
}
}
/**
* Used to move encoding options.
* @param table the table with encodings
* @param up move direction.
*/
private void move(JTable table, boolean up)
{
int index =
((EncodingConfigurationTableModel) table.getModel()).move(table
.getSelectedRow(), up);
table.getSelectionModel().setSelectionInterval(index, index);
}
/**
* Shows the preview panel.
* @param previewContainer the container
* @param preview the preview component.
* @param player the player.
*/
private void showPreview(final Container previewContainer,
final Component preview, final Player player)
{
if (!SwingUtilities.isEventDispatchThread())
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
showPreview(previewContainer, preview, player);
}
});
return;
}
previewContainer.removeAll();
if (preview != null)
{
HierarchyListener hierarchyListener = new HierarchyListener()
{
private Window window;
private WindowListener windowListener;
public void dispose()
{
if (windowListener != null)
{
if (window != null)
{
window.removeWindowListener(windowListener);
window = null;
}
windowListener = null;
}
preview.removeHierarchyListener(this);
disposePlayer(player);
videoDeviceInPreview = null;
/*
* We've just disposed the player which created the preview
* component so the preview component is of no use
* regardless of whether the Media configuration form will
* be redisplayed or not. And since the preview component
* appears to be a huge object even after its player is
* disposed, make sure to not reference it.
*/
previewContainer.remove(preview);
}
public void hierarchyChanged(HierarchyEvent event)
{
if ((event.getChangeFlags()
& HierarchyEvent.DISPLAYABILITY_CHANGED)
== 0)
return;
if (!preview.isDisplayable())
{
dispose();
return;
}
if (windowListener == null)
{
window = SwingUtilities.windowForComponent(preview);
if (window != null)
{
windowListener = new WindowAdapter()
{
@Override
public void windowClosing(WindowEvent event)
{
dispose();
}
};
window.addWindowListener(windowListener);
}
}
}
};
preview.addHierarchyListener(hierarchyListener);
previewContainer.add(preview);
}
else
disposePlayer(player);
}
}