1 files changed, 59 insertions, 0 deletions
diff --git a/src/main/java/com/jsyn/unitgen/FixedRateStereoReader.java b/src/main/java/com/jsyn/unitgen/FixedRateStereoReader.java
new file mode 100644
index 0000000..6dcf72c
--- /dev/null
+++ b/src/main/java/com/jsyn/unitgen/FixedRateStereoReader.java
@@ -0,0 +1,59 @@
+/*
+ * 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 com.jsyn.ports.UnitOutputPort;
+
+/**
+ * Simple stereo sample player. Play one sample per audio frame with no interpolation.
+ *
+ * @author Phil Burk (C) 2009 Mobileer Inc
+ */
+public class FixedRateStereoReader extends SequentialDataReader {
+    public FixedRateStereoReader() {
+        addPort(output = new UnitOutputPort(2, "Output"));
+        dataQueue.setNumChannels(2);
+    }
+
+    @Override
+    public void generate(int start, int limit) {
+        double[] amplitudes = amplitude.getValues();
+        double[] output0s = output.getValues(0);
+        double[] output1s = output.getValues(1);
+
+        for (int i = start; i < limit; i++) {
+            if (dataQueue.hasMore()) {
+                dataQueue.beginFrame(getFramePeriod());
+                double fdata = dataQueue.readCurrentChannelDouble(0);
+                // LOGGER.debug("SampleReader_16F2: left = " + fdata );
+                double amp = amplitudes[i];
+                output0s[i] = fdata * amp;
+                fdata = dataQueue.readCurrentChannelDouble(1);
+                // LOGGER.debug("SampleReader_16F2: right = " + fdata );
+                output1s[i] = fdata * amp;
+                dataQueue.endFrame();
+            } else {
+                output0s[i] = 0.0;
+                output1s[i] = 0.0;
+                if (dataQueue.testAndClearAutoStop()) {
+                    autoStop();
+                }
+            }
+            dataQueue.firePendingCallbacks();
+        }
+    }
+}