Java uses JMF to realize camera function

I split the program into two, interesting and uninteresting, and recently made a couple of interesting projects, one of which should be even a camera-taking program. Used for scene photography, photo generation, and primarily for the Java Media Framework (JMF).

First go to Sun to download the latest JMF, and then install. http://java.sun.com/products/java-media/jmf/index.jsp

Then, say the need

1. Take a picture with a camera

2. Enter a file name in the text box

3. Press the photo button to get the image inside the camera

4. There is a red box on the photo that captures the fixed size of the picture.

5. Save as a local image in JPG format, no compression

The key to the technology, I believe the most interesting part is how to get a camera to work, and take a picture.

With JMF, the code is simple:

Using these three classes to get the camera driver, and to obtain the image stream inside the camera, the image stream is captured by a swing component component class

public　static　Player　player　=　null;
private　CaptureDeviceInfo 　di　=　null;
private　MediaLocator　ml　=　null;
String　str1　=　"vfw:Logitech　USB 　Video　Camera:0";
String　str2　= 　"vfw:Microsoft　WDM　Image　Capture　(Win32):0";
di　=　 CaptureDeviceManager.getDevice(str2);
ml　=　di.getLocator();
try
{
player　=　 Manager.createRealizedPlayer (ml);
player.start();
Component　comp;
if　((comp　=　player.getVisualComponent()) 　!=　null)
{
add(comp,　BorderLayout.NORTH);
}
}
catch　(Exception　e)
{
e.printStackTrace ();
}