/*
* Copyright (c) 2007, 2008 Wayne Meissner
*
* 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.awt.BorderLayout;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import org.gstreamer.Bin;
import org.gstreamer.Bus;
import org.gstreamer.Caps;
import org.gstreamer.Element;
import org.gstreamer.ElementFactory;
import org.gstreamer.GhostPad;
import org.gstreamer.Gst;
import org.gstreamer.GstObject;
import org.gstreamer.Pad;
import org.gstreamer.Pipeline;
import org.gstreamer.Structure;
import org.gstreamer.elements.DecodeBin2;
import org.gstreamer.swing.VideoComponent;
/**
* An example of playing audio/video files using a decodebin and manually linking
* the pads, instead of using a playbin element.
*/
public class DecodeBinPlayer {
static final String name = "DecodeBinPlayer";
static JFrame frame;
static VideoComponent videoComponent;
static Pipeline pipe;
public static void main(String[] args) {
// Quartz is abysmally slow at scaling video for some reason, so turn it off.
System.setProperty("apple.awt.graphics.UseQuartz", "false");
args = Gst.init(name, args);
if (args.length < 1) {
System.err.println("Usage: " + name + " <filename>");
System.exit(1);
}
Element src = ElementFactory.make("filesrc", "Input File");
src.set("location", args[0]);
DecodeBin2 decodeBin = new DecodeBin2("Decode Bin");
pipe = new Pipeline("main pipeline");
Element decodeQueue = ElementFactory.make("queue", "Decode Queue");
pipe.addMany(src, decodeQueue, decodeBin);
Element.linkMany(src, decodeQueue, decodeBin);
/* create audio output */
final Bin audioBin = new Bin("Audio Bin");
Element conv = ElementFactory.make("audioconvert", "Audio Convert");
Element resample = ElementFactory.make("audioresample", "Audio Resample");
Element sink = ElementFactory.make("autoaudiosink", "sink");
audioBin.addMany(conv, resample, sink);
Element.linkMany(conv, resample, sink);
audioBin.addPad(new GhostPad("sink", conv.getStaticPad("sink")));
pipe.add(audioBin);
decodeBin.connect(new DecodeBin2.NEW_DECODED_PAD() {
public void newDecodedPad(DecodeBin2 elem, Pad pad, boolean last) {
/* only link once */
if (pad.isLinked()) {
return;
}
/* check media type */
Caps caps = pad.getCaps();
Structure struct = caps.getStructure(0);
if (struct.getName().startsWith("audio/")) {
System.out.println("Linking audio pad: " + struct.getName());
pad.link(audioBin.getStaticPad("sink"));
} else if (struct.getName().startsWith("video/")) {
System.out.println("Linking video pad: " + struct.getName());
pad.link(videoComponent.getElement().getStaticPad("sink"));
// Make the video frame visible
SwingUtilities.invokeLater(new Runnable() {
public void run() {
frame.setVisible(true);
}
});
} else {
System.out.println("Unknown pad [" + struct.getName() + "]");
}
}
});
Bus bus = pipe.getBus();
bus.connect(new Bus.ERROR() {
public void errorMessage(GstObject source, int code, String message) {
System.out.println("Error: code=" + code + " message=" + message);
}
});
bus.connect(new Bus.EOS() {
public void endOfStream(GstObject source) {
pipe.stop();
System.exit(0);
}
});
//
// Do the remainder of the initialization on the Swing EDT
//
SwingUtilities.invokeLater(new Runnable() {
public void run() {
frame = new JFrame("DecodeBin Player");
videoComponent = new VideoComponent();
videoComponent.setPreferredSize(new Dimension(640, 480));
frame.add(videoComponent, BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
// Wait until a video pad is linked to make it visible
frame.setVisible(false);
pipe.add(videoComponent.getElement());
pipe.play();
}
});
}
}