ColorBalance.java

/* 
 * Copyright (c) 2009 Tamas Korodi <kotyo@zamba.fm>
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package org.gstreamer.example;

import java.util.List;

import org.gstreamer.Element;
import org.gstreamer.ElementFactory;
import org.gstreamer.Gst;
import org.gstreamer.Pipeline;
import org.gstreamer.interfaces.ColorBalanceChannel;
import org.gstreamer.interfaces.VideoOrientation;

public class ColorBalance {
	public static void main(String[] args) {
		args = Gst.init("ColorBalance video test", args);

		Pipeline pipe = new Pipeline("pipeline");
		final Element videosrc = ElementFactory.make("v4l2src", "source");
		videosrc.set("device", "/dev/video1");
		final Element videosink = ElementFactory.make("xvimagesink", "xv");

		pipe.addMany(videosrc, videosink);
		Element.linkMany(videosrc, videosink);

		pipe.play();

		try {
			Thread.sleep(1000);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}

		VideoOrientation vo = VideoOrientation.wrap(videosrc);
		System.out.println("VideoOrientation: " + vo.getHflip(true));
		vo.setHflip(false);
		System.out.println("VideoOrientation: " + vo.getHflip(true));

		org.gstreamer.interfaces.ColorBalance cb = org.gstreamer.interfaces.ColorBalance.wrap(videosrc);
		List<ColorBalanceChannel> cbcList = cb.getChannelList();
		for (ColorBalanceChannel cbc : cbcList) {
			System.out.println("ColorBalance channels: " + cbc.getName() + " "
					+ cbc.getMinValue() + " - " + cbc.getMaxValue());
		}

		for (int i = 0; i < 1000; ++i) {
			try {
				Thread.sleep(1000);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			cbcList.get(0).setValue(60000);
			cbcList.get(1).setValue(60000);
			cbcList.get(2).setValue(60000);
			cbcList.get(3).setValue(60000);

			switch (i % 4) {
			case 0:
				cbcList.get(0).setValue(10000);
				break;
			case 1:
				cbcList.get(1).setValue(10000);
				break;
			case 2:
				cbcList.get(2).setValue(10000);
				break;
			case 3:
				cbcList.get(3).setValue(10000);
				break;
			}
		}
	}
}