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112 changes: 112 additions & 0 deletions
112
...-capture-driver-javacv/src/main/java/com/github/sarxos/webcam/ds/javacv/JavaCvDevice.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package com.github.sarxos.webcam.ds.javacv; | ||
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| import java.awt.Dimension; | ||
| import java.awt.image.BufferedImage; | ||
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| import com.github.sarxos.webcam.WebcamDevice; | ||
| import com.github.sarxos.webcam.WebcamException; | ||
| import com.googlecode.javacv.FrameGrabber; | ||
| import com.googlecode.javacv.FrameGrabber.Exception; | ||
| import com.googlecode.javacv.cpp.videoInputLib.videoInput; | ||
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| /** | ||
| * UNSTABLE, EXPERIMENTALL STUFF !!! | ||
| * | ||
| * @author bfiryn | ||
| */ | ||
| public class JavaCvDevice implements WebcamDevice { | ||
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| private int address = -1; | ||
| private String name = null; | ||
| private boolean open = false; | ||
| private FrameGrabber grabber = null; | ||
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| public JavaCvDevice(int address) { | ||
| this.address = address; | ||
| } | ||
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| @Override | ||
| public String getName() { | ||
| if (name == null) { | ||
| name = videoInput.getDeviceName(address); | ||
| } | ||
| return name; | ||
| } | ||
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| @Override | ||
| public Dimension[] getSizes() { | ||
| throw new WebcamException("Not implemented"); | ||
| } | ||
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| @Override | ||
| public Dimension getSize() { | ||
| throw new WebcamException("Not implemented"); | ||
| } | ||
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| @Override | ||
| public void setSize(Dimension size) { | ||
| throw new WebcamException("Not implemented"); | ||
| } | ||
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| @Override | ||
| public BufferedImage getImage() { | ||
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| if (!open) { | ||
| throw new WebcamException("Cannot grab image - webcam device is not open"); | ||
| } | ||
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| try { | ||
| return grabber.grab().getBufferedImage(); | ||
| } catch (Exception e) { | ||
| throw new WebcamException("Cannot grab image..."); | ||
| } | ||
| } | ||
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| @Override | ||
| public void open() { | ||
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| if (open) { | ||
| return; | ||
| } | ||
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| // CvCapture capture = | ||
| // opencv_highgui.cvCreateCameraCapture(opencv_highgui.CV_CAP_DSHOW); | ||
| // IplImage image = opencv_highgui.cvQueryFrame(capture); | ||
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| try { | ||
| grabber = FrameGrabber.createDefault(address); | ||
| grabber.start(); | ||
| open = true; | ||
| } catch (com.googlecode.javacv.FrameGrabber.Exception e) { | ||
| dispose(); | ||
| throw new WebcamException(e); | ||
| } | ||
| } | ||
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| private void dispose() { | ||
| if (grabber != null) { | ||
| try { | ||
| grabber.release(); | ||
| } catch (com.googlecode.javacv.FrameGrabber.Exception e) { | ||
| throw new WebcamException(e); | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| public void close() { | ||
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| if (!open) { | ||
| return; | ||
| } | ||
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| try { | ||
| grabber.stop(); | ||
| } catch (com.googlecode.javacv.FrameGrabber.Exception e) { | ||
| throw new WebcamException(e); | ||
| } finally { | ||
| dispose(); | ||
| } | ||
| } | ||
| } |
41 changes: 39 additions & 2 deletions
41
...-capture-driver-javacv/src/main/java/com/github/sarxos/webcam/ds/javacv/JavaCvDriver.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,17 +1,54 @@ | ||
| package com.github.sarxos.webcam.ds.javacv; | ||
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| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
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| import com.github.sarxos.webcam.WebcamDevice; | ||
| import com.github.sarxos.webcam.WebcamDriver; | ||
| import com.googlecode.javacv.cpp.videoInputLib.videoInput; | ||
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| /** | ||
| * Webcam driver using JavaCV interface to OpenCV. OpenCV (Open Source Computer | ||
| * Vision Library) is library of programming functions for real time computer | ||
| * vision. JavaCV provides wrappers to commonly used libraries for OpenCV and | ||
| * few others. | ||
| * | ||
| * UNSTABLE, EXPERIMENTALL STUFF !!! | ||
| * | ||
| * @author Bartosz Firyn (SarXos) | ||
| */ | ||
| public class JavaCvDriver implements WebcamDriver { | ||
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| private static List<WebcamDevice> devices = null; | ||
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| @Override | ||
| public List<WebcamDevice> getDevices() { | ||
| // TODO Auto-generated method stub | ||
| return null; | ||
| if (devices == null) { | ||
| devices = new ArrayList<WebcamDevice>(); | ||
| int n = videoInput.listDevices(); | ||
| if (n > 0) { | ||
| for (int i = 0; i < n; i++) { | ||
| devices.add(new JavaCvDevice(i)); | ||
| } | ||
| } else { | ||
| devices = Collections.emptyList(); | ||
| } | ||
| } | ||
| return devices; | ||
| } | ||
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| public static void main(String[] args) { | ||
| new JavaCvDriver().getDevices(); | ||
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| int n = videoInput.listDevices(); | ||
| if (n > 0) { | ||
| for (int i = 0; i < n; i++) { | ||
| System.out.println(videoInput.getDeviceName(i)); | ||
| } | ||
| } | ||
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| } | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -111,5 +111,4 @@ public void close() { | |
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| LOG.info("OpenIMAJ webcam device has been closed"); | ||
| } | ||
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| } | ||
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27 changes: 27 additions & 0 deletions
27
webcam-capture/src/main/java/com/github/sarxos/webcam/util/ImageUtils.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| package com.github.sarxos.webcam.util; | ||
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| import java.awt.Graphics2D; | ||
| import java.awt.image.BufferedImage; | ||
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| public class ImageUtils { | ||
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| public static BufferedImage premultiple(BufferedImage src) { | ||
| BufferedImage pre = new BufferedImage(512, 512, BufferedImage.TYPE_INT_ARGB_PRE); | ||
| Graphics2D g2 = pre.createGraphics(); | ||
| g2.drawImage(src, 0, 0, null); | ||
| g2.dispose(); | ||
| pre.flush(); | ||
| return pre; | ||
| } | ||
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| public static BufferedImage unpremultiple(BufferedImage pre) { | ||
| BufferedImage src = new BufferedImage(512, 512, BufferedImage.TYPE_INT_ARGB); | ||
| Graphics2D g2 = pre.createGraphics(); | ||
| g2.drawImage(src, 0, 0, null); | ||
| g2.dispose(); | ||
| src.flush(); | ||
| return src; | ||
| } | ||
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| } |