com.github.hoary.javaav

Class Camera

java.lang.Object

com.github.hoary.javaav.Camera

public class Camera
extends Object

This class is used to capture images from input devices. Camera is a convenience class that makes use of Demuxer to retrieve images from input devices.

Author:

Alex Andres

Constructor Summary

Constructors

Constructor and Description
Camera(String device, String source) Creates a new Camera capture for specified device that captures frames from the specified source.

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Close the camera and free associated memory.
BufferedImage	getImage() Retrieve one picture from this camera.
String	getName() Get the camera name or identifier.
boolean	isOpen() Checks whether this camera is opened.
void	open(int width, int height, double frameRate) Open the camera with specified image size and capture frame rate.

Methods inherited from class java.lang.Object

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

Constructor Detail

Camera

public Camera(String device,
      String source)

Creates a new Camera capture for specified device that captures frames from the specified source.

Parameters:

device - device name or identifier, e.g. /dev/video0.

source - input source, e.g. vfwcap, dshow (Windows) or video4linux2, v4l2 (Linux).

Method Detail

getName

public String getName()

Get the camera name or identifier.

Returns:

camera name or identifier

getImage

public BufferedImage getImage()
                       throws JavaAVException

Retrieve one picture from this camera. The picture will be of type 3BYTE_BGR.

Returns:

one picture from this camera, or null if an error occurs.

Throws:

JavaAVException

open

public void open(int width,
        int height,
        double frameRate)
          throws JavaAVException

Open the camera with specified image size and capture frame rate.

Parameters:

width - the image width.

height - the image height.

frameRate - the capture frame rate.

Throws:

JavaAVException - if camera could not be opened.

close

public void close()

Close the camera and free associated memory. Subsequent calls of getImage() will return null.

isOpen

public boolean isOpen()

Checks whether this camera is opened.

Returns:

true if camera is opened, false otherwise.