Gstreamer Java"没有这样的Gstreamer工厂" - 为什么？

Question

我正在尝试运行Gstreamer Java教程(https://code.google.com/p/gstreamer-java/wiki/Tutorials).但我现在遇到了"没有这样的Gstreamer工厂"的错误.

从在互联网上寻找它似乎与计算机架构(32或64位)有关,但我看不出如何解决问题.

我正在运行OSX 10.8.5(64位),Java 1.7.

有任何想法吗？

谢谢!埃德

编辑: java -version

java version "1.7.0_45" Java(TM) SE Runtime Environment (build 1.7.0_45-b18) Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode)

并且运行的代码是:

import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.NativeLibrary;
import java.awt.BorderLayout;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.*;
import org.gstreamer.*;
import org.gstreamer.swing.VideoComponent;

public class VideoTest {

    public VideoTest() {
    }
    private static Pipeline pipe;
    private static String libDir;
    private static final Object[][] DEPENDENCIES = {
        // glib libraries
        {"gio-2.0", new String[]{}, true},
        {"glib-2.0", new String[]{}, true},
        {"gmodule-2.0", new String[]{}, true},
        {"gobject-2.0", new String[]{}, true},
        {"gthread-2.0", new String[]{}, true},
        // Core gstreamer libraries  
        {"gstapp-0.10", new String[]{}, true},
        {"gstaudio-0.10", new String[]{}, true},
        {"gstbase-0.10", new String[]{}, true},
        {"gstbasevideo-0.10", new String[]{}, true},
        //{"gstcdda-0.10", new String[]{}, true},
        {"gstcontroller-0.10", new String[]{}, true},
        {"gstdataprotocol-0.10", new String[]{}, true},
        {"gstfft-0.10", new String[]{}, true},
        {"gstinterfaces-0.10", new String[]{}, true},
        //{"gstnet-0.10", new String[]{}, true},
        {"gstnetbuffer-0.10", new String[]{}, true},
        {"gstpbutils-0.10", new String[]{}, true},
        {"gstphotography-0.10", new String[]{}, true},
        {"gstreamer-0.10", new String[]{}, true},
        {"gstriff-0.10", new String[]{}, true},
        {"gstrtp-0.10", new String[]{}, true},
        {"gstrtsp-0.10", new String[]{}, true},
        {"gstsdp-0.10", new String[]{}, true},
        //{"gstsignalprocessor-0.10", new String[]{}, true},
        {"gsttag-0.10", new String[]{}, true},
        {"gstvideo-0.10", new String[]{}, true},};

    public static void main(String[] args) {

        libDir = System.getProperty("user.dir");
        //MAC64
        if (System.getProperty("os.name").contains("OS")) {
            if (System.getProperty("sun.arch.data.model").contains("64")) {
                libDir = libDir + "/MAC64";
            }
        }
        //PC64
        if (System.getProperty("os.name").contains("Win")) {
            if (System.getProperty("sun.arch.data.model").contains("64")) {
                libDir = libDir + "\\PC64";
            }
        }
        //PC32
        if (System.getProperty("os.name").contains("Win")) {
            if (System.getProperty("sun.arch.data.model").contains("32")) {
                libDir = libDir + "\\PC32";
            }
        }

        for (Object[] a : DEPENDENCIES) {
            try {
                NativeLibrary.addSearchPath(a[0].toString(), libDir);
                Native.loadLibrary(a[0].toString(), DummyLibrary.class);
            } catch (UnsatisfiedLinkError ex) {
                System.out.println("Error loading: " + a[0].toString());
            }
        }


        Gst.setUseDefaultContext(false);

        args = Gst.init("VideoTest", args);

        pipe = new Pipeline("VideoTest");
        final Element videosrc = ElementFactory.make("videotestsrc", "source");
        final Element videofilter = ElementFactory.make("capsfilter", "filter");
        videofilter.setCaps(Caps.fromString("video/x-raw-yuv, width=720, height=576"
                + ", bpp=32, depth=32, framerate=25/1"));
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                VideoComponent videoComponent = new VideoComponent();
                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(720, 576));
                frame.pack();
                frame.setVisible(true);

                // Start the pipeline processing
                pipe.setState(State.PLAYING);
            }
        });
    }

    public interface DummyLibrary extends Library {
    }
}

目录中包含lib/dylib文件.这是基于Praxis LIVE(https://code.google.com/p/praxis/)的代码.

Answer 1

从他们的网站：

GStreamer 团队很高兴地宣布 GStreamer 1.0.7 的二进制版本、插件模块及其所有依赖项...目前提供适用于 Windows（32/64 位）、Mac OS X（32/64 位 x86）和 Android 的版本（手臂）。未来的版本将包括对 iOS 的支持。2013-06-10

您没有遇到兼容性问题，但此错误No such Gstreamer factory应该是缺少包含您尝试使用的工厂的 GStreamer 包。

通过运行检查您的安装gst-launch videotestsrc ! autovideosink并查找任何问题