Songdb java version, source. only 1.5 compatible

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7101 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 127 insertions, 0 deletions

diff --git a/songdbj/de/jarnbjo/ogg/OnDemandUrlStream.java b/songdbj/de/jarnbjo/ogg/OnDemandUrlStream.java
new file mode 100644
index 0000000000..98159c4e7c
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+++ b/songdbj/de/jarnbjo/ogg/OnDemandUrlStream.java
@@ -0,0 +1,127 @@
+/*
+ * $ProjectName$
+ * $ProjectRevision$
+ * -----------------------------------------------------------
+ * $Id$
+ * -----------------------------------------------------------
+ *
+ * $Author$
+ *
+ * Description:
+ *
+ * Copyright 2002-2003 Tor-Einar Jarnbjo
+ * -----------------------------------------------------------
+ *
+ * Change History
+ * -----------------------------------------------------------
+ * $Log$
+ * Revision 1.1  2005/07/11 15:42:36  hcl
+ * Songdb java version, source. only 1.5 compatible
+ *
+ * Revision 1.1.1.1  2004/04/04 22:09:12  shred
+ * First Import
+ *
+ * Revision 1.1  2003/04/10 19:48:22  jarnbjo
+ * no message
+ *
+ * Revision 1.1  2003/03/31 00:23:04  jarnbjo
+ * no message
+ *
+ */
+
+package de.jarnbjo.ogg;
+
+import java.io.*;
+import java.net.*;
+import java.util.*;
+
+/**
+ * Implementation of the <code>PhysicalOggStream</code> interface for reading
+ * an Ogg stream from a URL. This class performs
+ *  no internal caching, and will not read data from the network before
+ *  requested to do so. It is intended to be used in non-realtime applications
+ *  like file download managers or similar.
+ */
+
+public class OnDemandUrlStream implements PhysicalOggStream {
+
+   private boolean closed=false;
+   private URLConnection source;
+   private InputStream sourceStream;
+   private Object drainLock=new Object();
+   private LinkedList pageCache=new LinkedList();
+   private long numberOfSamples=-1;
+   private int contentLength=0;
+   private int position=0;
+
+   private HashMap logicalStreams=new HashMap();
+   private OggPage firstPage;
+
+   private static final int PAGECACHE_SIZE = 20;
+
+   public OnDemandUrlStream(URL source) throws OggFormatException, IOException {
+      this.source=source.openConnection();
+      this.sourceStream=this.source.getInputStream();
+
+      contentLength=this.source.getContentLength();
+
+      firstPage=OggPage.create(sourceStream);
+      position+=firstPage.getTotalLength();
+      LogicalOggStreamImpl los=new LogicalOggStreamImpl(this, firstPage.getStreamSerialNumber());
+      logicalStreams.put(new Integer(firstPage.getStreamSerialNumber()), los);
+      los.checkFormat(firstPage);
+   }
+
+   public Collection getLogicalStreams() {
+      return logicalStreams.values();
+   }
+
+   public boolean isOpen() {
+      return !closed;
+   }
+
+   public void close() throws IOException {
+      closed=true;
+      sourceStream.close();
+   }
+
+   public int getContentLength() {
+      return contentLength;
+   }
+
+   public int getPosition() {
+      return position;
+   }
+
+   int pageNumber=2;
+
+   public OggPage getOggPage(int index) throws IOException {
+      if(firstPage!=null) {
+         OggPage tmp=firstPage;
+         firstPage=null;
+         return tmp;
+      }
+      else {
+         OggPage page=OggPage.create(sourceStream);
+         position+=page.getTotalLength();
+         return page;
+      }
+   }
+
+   private LogicalOggStream getLogicalStream(int serialNumber) {
+      return (LogicalOggStream)logicalStreams.get(new Integer(serialNumber));
+   }
+
+   public void setTime(long granulePosition) throws IOException {
+      throw new UnsupportedOperationException("Method not supported by this class");
+   }
+
+        /** 
+         *  @return always <code>false</code>
+         */
+
+   public boolean isSeekable() {
+      return false;
+   }
+
+}
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