/*
* Copyright (c) 2008 Wayne Meissner
*
* This file is part of gstreamer-java.
*
* This code is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License version 3 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* version 3 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with this work. If not, see <http://www.gnu.org/licenses/>.
*/
package org.gstreamer.lowlevel;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.io.File;
import java.net.URI;
import java.util.LinkedList;
import java.util.List;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import org.gstreamer.Caps;
import org.gstreamer.Element;
import org.gstreamer.ElementFactory;
import org.gstreamer.Gst;
import org.gstreamer.Pipeline;
import org.gstreamer.Version;
import org.gstreamer.swing.VideoComponent;
import org.gstreamer.swing.VideoPlayer;
/**
* Simple startup tests that can be run via: java -jar gstreamer-java.jar
*/
public class Main {
static Pipeline pipe;
static void diagnostics(String[] args) {
Package pkg = com.sun.jna.Native.class.getPackage();
String title = pkg.getSpecificationTitle();
if (title == null) {
title = "JNA";
}
String version = pkg.getSpecificationVersion();
if (version == null) {
version = "Cannot determine version - no package information present";
}
String implVersion = pkg.getImplementationVersion();
if (implVersion == null) {
implVersion = "unknown";
}
String jnaVersion = String.format(title + " API=%s Version=%s\n", version, implVersion);
final String PREFIX = "DIAG: ";
System.out.flush();
System.out.println(PREFIX + jnaVersion);
args = Gst.init("unknown", args);
Version v = Gst.getVersion();
System.out.println(PREFIX + "Gst.init succeeded. gstreamer version " + v);
System.out.flush();
pipe = new Pipeline();
if (pipe == null) {
throw new RuntimeException("Failed to create Pipeline");
}
System.out.println(PREFIX + "Pipeline created successfully");
System.out.flush();
final Element videosrc = ElementFactory.make("videotestsrc", "source");
System.out.println(PREFIX + "videotestsrc created successfully");
System.out.flush();
final Element videofilter = ElementFactory.make("capsfilter", "flt");
System.out.println(PREFIX + "capsfilter created successfully");
System.out.flush();
final int width = 400, height = 300;
videofilter.setCaps(Caps.fromString("video/x-raw-yuv, width=" + width
+ ", height=" + height
+ ", bpp=32, depth=32, framerate=25/1"));
SwingUtilities.invokeLater(new Runnable() {
public void run() {
// Create the video component and link it in
VideoComponent videoComponent = new VideoComponent();
System.out.println(PREFIX + "VideoComponent created successfully");
System.out.flush();
Element videosink = videoComponent.getElement();
pipe.addMany(videosrc, videofilter, videosink);
Element.linkMany(videosrc, videofilter, videosink);
// Now create a JFrame to display the video output
JFrame frame = new JFrame("Swing Video Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(videoComponent, BorderLayout.CENTER);
videoComponent.setPreferredSize(new Dimension(width, height));
frame.pack();
frame.setVisible(true);
// Start the pipeline processing
pipe.play();
System.out.println(PREFIX + "pipeline set to PLAYING state");
System.out.flush();
}
});
}
private static void play(String[] args) {
args = Gst.init("gstreamer-java", args);
final List<URI> playList = new LinkedList<URI>();
for (String arg : args) {
playList.add(new File(arg).toURI());
}
final String file = args[0];
SwingUtilities.invokeLater(new Runnable() {
public void run() {
JFrame frame = new JFrame("Swing Test");
final VideoPlayer player = new VideoPlayer(file);
player.setPreferredSize(new Dimension(640, 480));
player.setControlsVisible(true);
player.getMediaPlayer().setPlaylist(playList);
frame.add(player, BorderLayout.CENTER);
player.getMediaPlayer().play();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
});
}
public static void main(String[] args) {
String jnaPath = System.getProperty("jna.library.path");
if (jnaPath == null) {
System.setProperty("jna.library.path", "/usr/share/java:/opt/local/lib:/usr/local/lib:/usr/lib");
}
// Quartz is abysmally slow at scaling video for some reason, so turn it off.
System.setProperty("apple.awt.graphics.UseQuartz", "false");
if (args.length == 0) {
diagnostics(args);
} else {
play(args);
}
}
}