video
Class CameraUtils

java.lang.Object
  video.CameraUtils

public class CameraUtils
extends java.lang.Object

Created by IntelliJ IDEA. User: dlyon Date: Apr 13, 2005 Time: 5:10:33 PM Copyright DocJava, 2005

Field Summary

static java.lang.String	CAMERA2
static java.lang.String	CAMERA3
static java.lang.String	CAMERA4
static java.lang.String	DEFAULT_FORMAT_ENCODING Used for the default VideoFormat.
static float	DEFAULT_FORMAT_FRAME_RATE Used for the default VideoFormat.
static int	DEFAULT_FORMAT_MAX_LENGTH Used for the default VideoFormat.
static byte[]	DEFAULT_FORMAT_TYPE Used for the default VideoFormat.
static java.awt.Dimension	DEFAULT_IMAGE_DIMENSION Used for the default VideoFormat.
static javax.media.format.VideoFormat	DEFAULT_VIDEO_FORMAT Used for the default VideoFormat.
static int	DISPLAY_ALL_VIDEO Mode simply for debugging where the live video is simply displayed in a window.
static int	DISPLAY_NOTHING Default mode where the images are not displayable *
static int	DISPLAY_ON_EVENT Mode where the user may press 'i' to display a frame from the image stream *

Constructor Summary

CameraUtils()

Method Summary

static void	close(javax.media.Player player)
static void	displayCameraSource(CameraSource cameraSource)
static void	findCamera()
static javax.media.Format[]	getAllSupportedVideoFormats() Returns a Format[] of ALL the supported formats of all camera capture devices.
static java.lang.String	getDeviceNameFromCombo() Returns a user selected camera from a cambo box that shows a list of camera names.
static java.lang.String[]	getDeviceNameList() Returns a Vector of names of devices that support the video format requested by this object.
static java.lang.String[]	getDeviceNameList(javax.media.format.VideoFormat videoFormat) Returns a Vector of names of devices that support the video format requested by this object.
static java.awt.image.BufferedImage	getImageFromCamera()
static java.awt.image.BufferedImage	getImageFromCamera(javax.media.Player player)
static javax.media.Player	getPlayer()
static javax.media.Format[]	getSupportedVideoFormats(java.lang.String deviceName) Returns a Format[] of the supported formats of the camera name passed as a parameter.
static java.lang.String	getWebCameraString()
static java.net.URL	getWebcameraUrl()
static java.net.URL	getWebCameraUrl()
static java.awt.image.BufferedImage	getWebCamImage(java.lang.String cameraUrl) Uses the web camera defined in the camera variable in camerautils to get an image.
static void	listDeviceFormats(java.io.PrintStream ps, java.lang.String deviceID) Prints all available capture formats of the given device to a PrintStream
static void	listDeviceFormats(java.lang.String deviceID) Prints all available capture formats of the given device to the console
static void	listDevices() Lists all connected capture devices to the console
static void	listDevices(java.io.PrintStream ps, boolean showFormats) Writes details of all connected capture devices to the given PrintStream and optionally shows available capture formats too
static void	main(java.lang.String[] args)
static void	webCaptureDialog()
static void	webMosaicCaptureDialog(Main main)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DISPLAY_NOTHING

public static final int DISPLAY_NOTHING

Default mode where the images are not displayable *

See Also:

Constant Field Values

DISPLAY_ON_EVENT

public static final int DISPLAY_ON_EVENT

Mode where the user may press 'i' to display a frame from the image stream *

See Also:

Constant Field Values

DISPLAY_ALL_VIDEO

public static final int DISPLAY_ALL_VIDEO

Mode simply for debugging where the live video is simply displayed in a window. processImage() is not called. *

See Also:

Constant Field Values

DEFAULT_IMAGE_DIMENSION

public static final java.awt.Dimension DEFAULT_IMAGE_DIMENSION

Used for the default VideoFormat. Set to (320, 240). *

DEFAULT_FORMAT_ENCODING

public static final java.lang.String DEFAULT_FORMAT_ENCODING

Used for the default VideoFormat. Set to "rgb". *

See Also:

Constant Field Values

DEFAULT_FORMAT_MAX_LENGTH

public static final int DEFAULT_FORMAT_MAX_LENGTH

Used for the default VideoFormat. Set to 230400. *

See Also:

Constant Field Values

DEFAULT_FORMAT_TYPE

public static final byte[] DEFAULT_FORMAT_TYPE

Used for the default VideoFormat. Set to byte[DEFAULT_FORMAT_MAX_LENGTH]. *

DEFAULT_FORMAT_FRAME_RATE

public static final float DEFAULT_FORMAT_FRAME_RATE

Used for the default VideoFormat. Set to 15f. *

See Also:

Constant Field Values

DEFAULT_VIDEO_FORMAT

public static final javax.media.format.VideoFormat DEFAULT_VIDEO_FORMAT

Used for the default VideoFormat. Set to VideoFormat(DEFAULT_FORMAT_ENCODING, DEFAULT_IMAGE_DIMENSION, DEFAULT_FORMAT_MAX_LENGTH, DEFAULT_FORMAT_TYPE.getClass(), DEFAULT_FORMAT_FRAME_RATE). *

CAMERA2

public static final java.lang.String CAMERA2

See Also:

Constant Field Values

CAMERA3

public static final java.lang.String CAMERA3

See Also:

Constant Field Values

CAMERA4

public static final java.lang.String CAMERA4

See Also:

Constant Field Values

Constructor Detail

CameraUtils

public CameraUtils()

Method Detail

getImageFromCamera

public static java.awt.image.BufferedImage getImageFromCamera()
                                                       throws java.io.IOException,
                                                              javax.media.NoPlayerException,
                                                              javax.media.CannotRealizeException,
                                                              java.lang.InterruptedException

Throws:

java.io.IOException

javax.media.NoPlayerException

javax.media.CannotRealizeException

java.lang.InterruptedException

getPlayer

public static javax.media.Player getPlayer()
                                    throws java.io.IOException,
                                           javax.media.NoPlayerException,
                                           javax.media.CannotRealizeException,
                                           java.lang.InterruptedException

Throws:

java.io.IOException

javax.media.NoPlayerException

javax.media.CannotRealizeException

java.lang.InterruptedException

getImageFromCamera

public static java.awt.image.BufferedImage getImageFromCamera(javax.media.Player player)

close

public static void close(javax.media.Player player)

findCamera

public static void findCamera()
                       throws java.io.IOException,
                              javax.media.NoProcessorException

Throws:

java.io.IOException

javax.media.NoProcessorException

main

public static void main(java.lang.String[] args)
                 throws java.io.IOException,
                        javax.media.NoPlayerException,
                        javax.media.CannotRealizeException,
                        java.lang.InterruptedException

Throws:

java.io.IOException

javax.media.NoPlayerException

javax.media.CannotRealizeException

java.lang.InterruptedException

getDeviceNameList

public static java.lang.String[] getDeviceNameList(javax.media.format.VideoFormat videoFormat)

Returns a Vector of names of devices that support the video format requested by this object. (This procedure assumes that ALL camera devices will have the prefix "vfw:"!!!)

Parameters:

videoFormat - The video format of the devices you would like to request the names of. (This can be used to get the list of video devices that support the same videoFormat that this camera has been set to have by calling getDeviceNameList(camera.getVideoFormat().)

getDeviceNameFromCombo

public static java.lang.String getDeviceNameFromCombo()

Returns a user selected camera from a cambo box that shows a list of camera names.

getAllSupportedVideoFormats

public static javax.media.Format[] getAllSupportedVideoFormats()

Returns a Format[] of ALL the supported formats of all camera capture devices.

getSupportedVideoFormats

public static javax.media.Format[] getSupportedVideoFormats(java.lang.String deviceName)

Returns a Format[] of the supported formats of the camera name passed as a parameter.

Parameters:

deviceName - Name of the camera who's formats you want.

getDeviceNameList

public static java.lang.String[] getDeviceNameList()

Returns a Vector of names of devices that support the video format requested by this object.

listDevices

public static void listDevices()

Lists all connected capture devices to the console

listDevices

public static void listDevices(java.io.PrintStream ps,
                               boolean showFormats)

Writes details of all connected capture devices to the given PrintStream and optionally shows available capture formats too

Parameters:

ps - a valid PrintStream instance

showFormats - true, if format information is required

listDeviceFormats

public static void listDeviceFormats(java.lang.String deviceID)

Prints all available capture formats of the given device to the console

Parameters:

deviceID - descriptor string of device

listDeviceFormats

public static void listDeviceFormats(java.io.PrintStream ps,
                                     java.lang.String deviceID)

Prints all available capture formats of the given device to a PrintStream

Parameters:

ps - a valid PrintStream instance

deviceID - descriptor string of device

webMosaicCaptureDialog

public static void webMosaicCaptureDialog(Main main)

webCaptureDialog

public static void webCaptureDialog()

getWebCameraString

public static java.lang.String getWebCameraString()

getWebcameraUrl

public static java.net.URL getWebcameraUrl()
                                    throws java.net.MalformedURLException

Throws:

java.net.MalformedURLException

getWebCameraUrl

public static java.net.URL getWebCameraUrl()

getWebCamImage

public static java.awt.image.BufferedImage getWebCamImage(java.lang.String cameraUrl)

Uses the web camera defined in the camera variable in camerautils to get an image.

Returns:

a 24 bit bufferedImage

displayCameraSource

public static void displayCameraSource(CameraSource cameraSource)