Not working on 32 bit windows

[lancevalour]

Video freezes at the first frame when running on 32 bit windows. Works fine on 64 bit windows.

I am using gst1-java-core-0.9-SNAPSHOT.jar and jna-3.4.0.jar, and GStreamer 1.0 32 bit. GStreamer command line works fine too.

Did anyone see this and how to solve it? Thanks.

[woglinde]

Try to run your application from cmdline or yout IDE with GST_DEBUG=3 set. Here is an overview about all enviroment variables you can set. https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gst-running.html

[neilcsmith-net]

Please can you provide a bit more information -

• What exactly are you running - Pipeline.launch(), the example, something more complex?
• What date is the snapshot jar?
• Are you really running JNA 3.4.0? I'm surprised that works at all as gst1-java-core uses features added in JNA 3.5. Please try with an up-to-date JNA.
• Which actual version of GStreamer 1.x are you using?

Thanks, Neil

[lancevalour]

• Code I am running:

private static void loadGStreamerLibraries() {
    String binpath = "C:\\Users\\ZhangY\\Desktop\\gstreamer\\1.0\\x86\\bin";

    File dir = new File(binpath);
    for (File f : dir.listFiles()) {
        if (f.toString().endsWith(".dll")) {
            try {
                Native.loadLibrary(f.toString(), DummyLibrary.class);       
            }
            catch (Exception e) {

            }
        }
    }
}

public static void main(String[] args) {

    loadGStreamerLibraries();

    Gst.init("Test", args);

    final Bin bin = Bin.launch("autovideosrc ! videoconvert ! capsfilter caps=video/x-raw,width=640,height=480", true);

    final Pipeline pipe = new Pipeline();

    SwingUtilities.invokeLater(new Runnable() {
                @Override
        public void run() {
            SimpleVideoComponent vc = new SimpleVideoComponent();
            vc.setLayout(null);

            pipe.addMany(bin, vc.getElement());
            Pipeline.linkMany(bin, vc.getElement());

            JFrame f = new JFrame("Camera Test");
            JPanel panel = new JPanel();
            panel.add(vc);

            f.add(panel);
                        vc.setPreferredSize(new Dimension(640, 480));
            f.pack();
            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

            pipe.setState(State.PLAYING);

            f.setVisible(true);
        }
    });
        Gst.main();
    pipe.setState(State.NULL);

}

• Snapshot jar I use
  I clone from https://github.com/gstreamer-java/gst1-java-core and do mvn package and get the gst1-java-core-0.9-SNAPSHOT in target folder. That is what I use.
• JNA
  I am using JNA 3.4.0 and JNA 3.5.1, both have the same problem. However, when I use the JNA 4.2.2, it is working.
• GStreamer
  I am using GStreamer 1.7.1 from https://gstreamer.freedesktop.org/data/pkg/windows/1.7.1/

[lancevalour]

Btw, I am using JRE 1.8.0_77 32 bit. And my machine is Windows 7 64 bit.

[neilcsmith-net]

However, when I use the JNA 4.2.2, it is working.

In which case, I'd guess you're triggering a bug in JNA that's been fixed. Sorry, but if it works with latest JNA then I'm going to close this.