Viewing live video to Java Applications

[ypl]

Since I have been unsuccessful thus far, I thought I might throw out the question "is this even possible?" Much like JMStudio, I would like to view the live video stream from my webcam in a java application. Eventually I would like to take still shots of the video stream and save them... for now I just would like to view the stream. So far I have learned how to capture the device info, create a DataSource using a MediaLocator and create a processor to store it to a DataSink. I DON'T want to capture, store, then playback... I want to view this all in real time but I am having some problems figuring this out and what type of functions need to be used... sample code (not the stuff from JMF Solutions website because I have been through ALL of them quite thoroughly) would help.
Thanks.

Stephanie

 

[jmfguru]

Hi,

If you only want to take still shots of the video stream while viewing it live, you don't need a datasink. You can find the required capture device via the CaptureDeviceManager, create a Player for the media locator provided in the CaptureDeviceInfo and start the player (don't forget the Player.getVisualComponent).

To take a snapshot, you would need to ask the player for a FrameGrabbingControl. With this control, you can grab the current frame that is being displayed. You will get a Buffer object. You can then use javax.media.util.BufferToImage class to convert the Buffer to an Image.

After you get an image you can use one of the JDK 1.4 Image I/O APIs to save to a jpeg or any other image formats that are supported by that API.

-jmfGuru