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, 132 insertions, 0 deletions

diff --git a/songdbj/javazoom/jl/decoder/SampleBuffer.java b/songdbj/javazoom/jl/decoder/SampleBuffer.java
new file mode 100644
index 0000000000..ba4bfa060f
--- /dev/null
+++ b/songdbj/javazoom/jl/decoder/SampleBuffer.java
@@ -0,0 +1,132 @@
+/* 
+ * 11/19/04      1.0 moved to LGPL.
+ * 
+ * 12/12/99  Initial Version based on FileObuffer.      mdm@techie.com.
+ * 
+ * FileObuffer:
+ * 15/02/99  Java Conversion by E.B ,javalayer@javazoom.net
+ *
+ *-----------------------------------------------------------------------
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License as published
+ *   by the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU Library General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Library General Public
+ *   License along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *----------------------------------------------------------------------
+ */
+
+package javazoom.jl.decoder;
+
+/**
+ * The <code>SampleBuffer</code> class implements an output buffer
+ * that provides storage for a fixed size block of samples. 
+ */
+public class SampleBuffer extends Obuffer
+{
+  private short[]               buffer;
+  private int[]                 bufferp;
+  private int                   channels;
+  private int                   frequency;
+  
+  /**
+   * Constructor
+   */
+  public SampleBuffer(int sample_frequency, int number_of_channels)
+  {
+        buffer = new short[OBUFFERSIZE];
+        bufferp = new int[MAXCHANNELS];
+        channels = number_of_channels;
+        frequency = sample_frequency;
+        
+        for (int i = 0; i < number_of_channels; ++i) 
+                bufferp[i] = (short)i;
+        
+  }
+
+  public int getChannelCount()
+  {
+        return this.channels;  
+  }
+  
+  public int getSampleFrequency()
+  {
+          return this.frequency;
+  }
+  
+  public short[] getBuffer()
+  {
+        return this.buffer;  
+  }
+  
+  public int getBufferLength()
+  {
+          return bufferp[0];
+  }
+  
+  /**
+   * Takes a 16 Bit PCM sample.
+   */
+  public void append(int channel, short value)
+  {
+        buffer[bufferp[channel]] = value;
+        bufferp[channel] += channels;           
+  }
+  
+        public void appendSamples(int channel, float[] f)
+        {
+            int pos = bufferp[channel];
+                
+                short s;
+                float fs;
+            for (int i=0; i<32;)
+            {
+                        fs = f[i++];
+                        fs = (fs>32767.0f ? 32767.0f 
+                                                   : (fs < -32767.0f ? -32767.0f : fs));
+                        
+                        s = (short)fs;
+                        buffer[pos] = s;
+                        pos += channels;
+            }
+                
+                bufferp[channel] = pos;
+        }
+  
+  
+  /**
+   * Write the samples to the file (Random Acces).
+   */
+  public void write_buffer(int val)
+  {
+                                  
+        //for (int i = 0; i < channels; ++i) 
+        //      bufferp[i] = (short)i;
+
+  }
+
+  public void close()
+  {}
+  
+  /**
+   *
+   */
+  public void clear_buffer()
+  {
+        for (int i = 0; i < channels; ++i) 
+                bufferp[i] = (short)i;
+  }
+
+  /**
+   *
+   */
+  public void set_stop_flag()
+  {}
+}