Package org.gstreamer.example

Source Code of org.gstreamer.example.ColorBalance

/*
* 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 (Exception e) {
    }

    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 (Exception e) {
      }
      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;
      }
    }
  }
}
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