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/*
* Copyright 2010 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.data;
import java.util.ArrayList;
/**
* Base class for FloatSample and ShortSample.
*
* @author Phil Burk (C) 2010 Mobileer Inc
*/
public abstract class AudioSample extends SequentialDataCommon {
protected int numFrames;
protected int channelsPerFrame = 1;
private double frameRate = 44100.0;
private double pitch;
private ArrayList<SampleMarker> markers;
public abstract void allocate(int numFrames, int channelsPerFrame);
@Override
public double getRateScaler(int index, double synthesisRate) {
return 1.0;
}
public double getFrameRate() {
return frameRate;
}
public void setFrameRate(double f) {
this.frameRate = f;
}
@Override
public int getNumFrames() {
return numFrames;
}
@Override
public int getChannelsPerFrame() {
return channelsPerFrame;
}
public void setChannelsPerFrame(int channelsPerFrame) {
this.channelsPerFrame = channelsPerFrame;
}
/**
* Set the recorded pitch as a fractional MIDI semitone value where 60 is Middle C.
*
* @param pitch
*/
public void setPitch(double pitch) {
this.pitch = pitch;
}
public double getPitch() {
return pitch;
}
public int getMarkerCount() {
if (markers == null)
return 0;
else
return markers.size();
}
public SampleMarker getMarker(int index) {
if (markers == null)
return null;
else
return markers.get(index);
}
/**
* Add a marker that will be stored sorted by position. This is normally used internally by the
* SampleLoader.
*
* @param marker
*/
public void addMarker(SampleMarker marker) {
if (markers == null)
markers = new ArrayList<SampleMarker>();
int idx = markers.size();
for (int k = 0; k < markers.size(); k++) {
SampleMarker cue = markers.get(k);
if (cue.position > marker.position) {
idx = k;
break;
}
}
markers.add(idx, marker);
}
}
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