1 files changed, 53 insertions, 0 deletions
diff --git a/src/main/java/com/jsyn/unitgen/StereoStreamWriter.java b/src/main/java/com/jsyn/unitgen/StereoStreamWriter.java
new file mode 100644
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--- /dev/null
+++ b/src/main/java/com/jsyn/unitgen/StereoStreamWriter.java
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+/*
+ * Copyright 2009 Phil Burk, Mobileer Inc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jsyn.unitgen;
+
+import java.io.IOException;
+
+import com.jsyn.io.AudioOutputStream;
+import com.jsyn.ports.UnitInputPort;
+
+/**
+ * Write two samples per audio frame to an AudioOutputStream as interleaved samples.
+ *
+ * Note that you must call start() on this unit because it does not have an output for pulling data.
+ *
+ * @author Phil Burk (C) 2009 Mobileer Inc
+ */
+public class StereoStreamWriter extends UnitStreamWriter {
+    public StereoStreamWriter() {
+        addPort(input = new UnitInputPort(2, "Input"));
+    }
+
+    @Override
+    public void generate(int start, int limit) {
+        double[] leftInputs = input.getValues(0);
+        double[] rightInputs = input.getValues(1);
+        AudioOutputStream output = outputStream;
+        if (output != null) {
+            try {
+                for (int i = start; i < limit; i++) {
+                    output.write(leftInputs[i]);
+                    output.write(rightInputs[i]);
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+                output = null;
+            }
+        }
+    }
+}