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• RegistryDefaults.java

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net.sf.fmj.media.RegistryDefaults Maven / Gradle / Ivy

package net.sf.fmj.media;

import java.util.*;

import javax.media.*;
import javax.media.format.*;
import javax.media.pim.PlugInManager;
import javax.media.protocol.*;

import net.sf.fmj.registry.*;
import net.sf.fmj.utility.*;

import com.lti.utils.*;

/**
 * Defaults for the FMJ registry. Broken out into fmj, jmf, and third-party. fmj
 * ones are fmj-specific. jmf ones are to duplicate what is in jmf (useful if
 * jmf is in the classpath). third-party ones are those that are not included
 * with fmj but might be in the classpath (like fobs4jmf). The flags give us the
 * flexibility to make the registry the same as JMF's or JMF's + FMJ's, or just
 * FMJ's. Making it the same as JMF's is useful for unit testing.
 *
 * @author Ken Larson
 */
public class RegistryDefaults
{
    // com.sun and com.ibm are added only for compatibility with the reference
    // implementation.
    // FMJ does not provide any of the sun or ibm implementations.

    /** JMF registry entries. */
    public static final int JMF = 0x0001;
    /** FMJ registry entries. */
    public static final int FMJ = 0x0002;
    /** FMJ (native library required) registry entries. */
    public static final int FMJ_NATIVE = 0x0008;
    /** Third-party (not JMF or FMJ) registry entries. */
    public static final int THIRD_PARTY = 0x0004;
    /** No registry entries. */
    public static final int NONE = 0;
    /** All registry entries. */
    public static final int ALL = JMF | FMJ | FMJ_NATIVE | THIRD_PARTY;

    private static final boolean ENABLE_GSTREAMER = false; // GStreamer plugin
                                                           // is still a bit
                                                           // flaky, we'll
                                                           // disable by
                                                           // default.

    public static boolean DISABLE_OGG = false; // if ogg is not needed, class
                                               // loading is faster

    private static int defaultFlags = -1;

    public static List contentPrefixList(int flags)
    {
        final List contentPrefixList = new ArrayList();

        if ((flags & JMF) != 0)
        {
            contentPrefixList.add("javax");
            contentPrefixList.add("com.sun");
            contentPrefixList.add("com.ibm");
        }
        if ((flags & FMJ_NATIVE) != 0)
        {
            if (OSUtils.isMacOSX() || OSUtils.isWindows())
            {
                // Quicktime:
                contentPrefixList.add("net.sf.fmj.qt");
            }
            if (OSUtils.isWindows())
            {
                // DirectShow:
                contentPrefixList.add("net.sf.fmj.ds");
            }
            if (ENABLE_GSTREAMER && OSUtils.isLinux()) // TODO: we could add
                                                       // these for other OS's,
                                                       // as gstreamer is
                                                       // cross-platform.
            {
                // DirectShow:
                contentPrefixList.add("net.sf.fmj.gst");
            }
        }
        if ((flags & FMJ) != 0)
        {
            contentPrefixList.add("net.sf.fmj");

        }
        if ((flags & THIRD_PARTY) != 0)
        {
            // none to add
        }
        return contentPrefixList;
    }

    public static int getDefaultFlags()
    {
        if (defaultFlags == -1)
        {
            boolean jmfDefaults = false;

            try
            {
                jmfDefaults = System.getProperty(
                        "net.sf.fmj.utility.JmfRegistry.JMFDefaults", "false")
                        .equals("true");
            } catch (SecurityException e)
            { // we must be an applet.
            }

            defaultFlags = jmfDefaults ? RegistryDefaults.JMF
                    : RegistryDefaults.ALL;
        }
        return defaultFlags;
    }

    /**
     * List items are either classnames (String) or PlugInInfo.
     */
    public static List