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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 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);
// System.out.println("SampleReader_16F2: left = " + fdata );
double amp = amplitudes[i];
output0s[i] = fdata * amp;
fdata = dataQueue.readCurrentChannelDouble(1);
// System.out.println("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();
}
}
}
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