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-rw-r--r--src/com/jsyn/data/ShortSample.java123
1 files changed, 0 insertions, 123 deletions
diff --git a/src/com/jsyn/data/ShortSample.java b/src/com/jsyn/data/ShortSample.java
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--- a/src/com/jsyn/data/ShortSample.java
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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 com.jsyn.engine.SynthesisEngine;
-import com.jsyn.unitgen.FixedRateMonoReader;
-import com.jsyn.unitgen.FixedRateStereoReader;
-import com.jsyn.unitgen.VariableRateMonoReader;
-import com.jsyn.unitgen.VariableRateStereoReader;
-import com.jsyn.util.SampleLoader;
-
-/**
- * Store multi-channel short audio data in an interleaved buffer.
- *
- * @author Phil Burk (C) 2010 Mobileer Inc
- * @see SampleLoader
- * @see FixedRateMonoReader
- * @see FixedRateStereoReader
- * @see VariableRateMonoReader
- * @see VariableRateStereoReader
- */
-public class ShortSample extends AudioSample {
- private short[] buffer;
-
- public ShortSample() {
- }
-
- public ShortSample(int numFrames, int channelsPerFrame) {
- allocate(numFrames, channelsPerFrame);
- }
-
- /** Constructor for mono samples with data. */
- public ShortSample(short[] data) {
- this(data.length, 1);
- write(data);
- }
-
- /** Constructor for multi-channel samples with data. */
- public ShortSample(short[] data, int channelsPerFrame) {
- this(data.length / channelsPerFrame, channelsPerFrame);
- write(data);
- }
-
- @Override
- public void allocate(int numFrames, int channelsPerFrame) {
- buffer = new short[numFrames * channelsPerFrame];
- this.numFrames = numFrames;
- this.channelsPerFrame = channelsPerFrame;
- }
-
- /**
- * Note that in a stereo sample, a frame has two values.
- *
- * @param startFrame index of frame in the sample
- * @param data data to be written
- * @param startIndex index of first value in array
- * @param numFrames
- */
- public void write(int startFrame, short[] data, int startIndex, int numFrames) {
- int numSamplesToWrite = numFrames * channelsPerFrame;
- int firstSampleIndexToWrite = startFrame * channelsPerFrame;
- System.arraycopy(data, startIndex, buffer, firstSampleIndexToWrite, numSamplesToWrite);
- }
-
- /**
- * Note that in a stereo sample, a frame has two values.
- *
- * @param startFrame index of frame in the sample
- * @param data array to receive the data from the sample
- * @param startIndex index of first location in array to start filling
- * @param numFrames
- */
- public void read(int startFrame, short[] data, int startIndex, int numFrames) {
- int numSamplesToRead = numFrames * channelsPerFrame;
- int firstSampleIndexToRead = startFrame * channelsPerFrame;
- System.arraycopy(buffer, firstSampleIndexToRead, data, startIndex, numSamplesToRead);
- }
-
- public void write(short[] data) {
- write(0, data, 0, data.length);
- }
-
- public void read(short[] data) {
- read(0, data, 0, data.length);
- }
-
- public short readShort(int index) {
- return buffer[index];
- }
-
- public void writeShort(int index, short value) {
- buffer[index] = value;
- }
-
- /** Read a sample converted to a double in the range -1.0 to almost 1.0. */
- @Override
- public double readDouble(int index) {
- return SynthesisEngine.convertShortToDouble(buffer[index]);
- }
-
- /**
- * Write a double that will be clipped to the range -1.0 to almost 1.0 and converted to a short.
- */
- @Override
- public void writeDouble(int index, double value) {
- buffer[index] = SynthesisEngine.convertDoubleToShort(value);
- }
-
-}