www in docker support

decompiled-libs/www/acxent-videoj-1.0.0/org/jcodec/audio/Audio.java

@@ -0,0 +1,78 @@
+package org.jcodec.audio;
+
+import java.io.IOException;
+import java.nio.FloatBuffer;
+
+public class Audio {
+  public static void transfer(AudioSource src, AudioSink sink) throws IOException {
+    filterTransfer(src, new DummyFilter(1), sink);
+  }
+  
+  public static void filterTransfer(AudioSource src, AudioFilter filter, AudioSink sink) throws IOException {
+    if (filter.getNInputs() != 1)
+      throw new IllegalArgumentException("Audio filter has # inputs != 1"); 
+    if (filter.getNOutputs() != 1)
+      throw new IllegalArgumentException("Audio filter has # outputs != 1"); 
+    if (filter.getDelay() != 0)
+      throw new IllegalArgumentException("Audio filter has delay"); 
+    FloatBuffer[] ins = { FloatBuffer.allocate(4096) };
+    FloatBuffer[] outs = { FloatBuffer.allocate(8192) };
+    long[] pos = new long[1];
+    while (src.readFloat(ins[0]) != -1) {
+      ins[0].flip();
+      filter.filter(ins, pos, outs);
+      pos[0] = pos[0] + (long)ins[0].position();
+      rotate(ins[0]);
+      outs[0].flip();
+      sink.writeFloat(outs[0]);
+      outs[0].clear();
+    } 
+  }
+  
+  public static void print(FloatBuffer buf) {
+    FloatBuffer dup = buf.duplicate();
+    while (dup.hasRemaining())
+      System.out.print(String.format("%.3f,", dup.get())); 
+    System.out.println();
+  }
+  
+  public static void rotate(FloatBuffer buf) {
+    int pos;
+    for (pos = 0; buf.hasRemaining(); pos++)
+      buf.put(pos, buf.get()); 
+    buf.position(pos);
+    buf.limit(buf.capacity());
+  }
+  
+  public static class DummyFilter implements AudioFilter {
+    private int nInputs;
+    
+    public DummyFilter(int nInputs) {
+      this.nInputs = nInputs;
+    }
+    
+    public void filter(FloatBuffer[] _in, long[] inPos, FloatBuffer[] out) {
+      for (int i = 0; i < _in.length; i++) {
+        if (out[i].remaining() >= _in[i].remaining()) {
+          out[i].put(_in[i]);
+        } else {
+          FloatBuffer duplicate = _in[i].duplicate();
+          duplicate.limit(_in[i].position() + out[i].remaining());
+          out[i].put(duplicate);
+        } 
+      } 
+    }
+    
+    public int getDelay() {
+      return 0;
+    }
+    
+    public int getNInputs() {
+      return this.nInputs;
+    }
+    
+    public int getNOutputs() {
+      return this.nInputs;
+    }
+  }
+}