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Diffstat (limited to 'src/com/jsyn/util/soundfile/AudioFileParser.java')
-rw-r--r-- | src/com/jsyn/util/soundfile/AudioFileParser.java | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/src/com/jsyn/util/soundfile/AudioFileParser.java b/src/com/jsyn/util/soundfile/AudioFileParser.java deleted file mode 100644 index e7bb066..0000000 --- a/src/com/jsyn/util/soundfile/AudioFileParser.java +++ /dev/null @@ -1,129 +0,0 @@ -/* - * Copyright 2001 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.util.soundfile; - -import java.io.IOException; -import java.util.HashMap; - -import com.jsyn.data.FloatSample; -import com.jsyn.data.SampleMarker; - -/** - * Base class for various types of audio specific file parsers. - * - * @author (C) 2001 Phil Burk, SoftSynth.com - */ - -abstract class AudioFileParser implements ChunkHandler { - IFFParser parser; - protected byte[] byteData; - boolean ifLoadData = true; /* If true, load sound data into memory. */ - long dataPosition; /* - * Number of bytes from beginning of file where sound data resides. - */ - protected int bitsPerSample; - protected int bytesPerFrame; // in the file - protected int bytesPerSample; // in the file - protected HashMap<Integer, SampleMarker> cueMap = new HashMap<Integer, SampleMarker>(); - protected short samplesPerFrame; - protected double frameRate; - protected int numFrames; - protected double originalPitch = 60.0; - protected int sustainBegin = -1; - protected int sustainEnd = -1; - - public AudioFileParser() { - } - - /** - * @return Number of bytes from beginning of stream where sound data resides. - */ - public long getDataPosition() { - return dataPosition; - } - - /** - * This can be read by another thread when load()ing a sample to determine how many bytes have - * been read so far. - */ - public synchronized long getNumBytesRead() { - IFFParser p = parser; // prevent race - if (p != null) - return p.getOffset(); - else - return 0; - } - - /** - * This can be read by another thread when load()ing a sample to determine how many bytes need - * to be read. - */ - public synchronized long getFileSize() { - IFFParser p = parser; // prevent race - if (p != null) - return p.getFileSize(); - else - return 0; - } - - protected SampleMarker findOrCreateCuePoint(int uniqueID) { - SampleMarker cuePoint = cueMap.get(uniqueID); - if (cuePoint == null) { - cuePoint = new SampleMarker(); - cueMap.put(uniqueID, cuePoint); - } - return cuePoint; - } - - public FloatSample load(IFFParser parser) throws IOException { - this.parser = parser; - parser.parseAfterHead(this); - return finish(); - } - - abstract FloatSample finish() throws IOException; - - FloatSample makeSample(float[] floatData) throws IOException { - FloatSample floatSample = new FloatSample(floatData, samplesPerFrame); - - floatSample.setChannelsPerFrame(samplesPerFrame); - floatSample.setFrameRate(frameRate); - floatSample.setPitch(originalPitch); - - if (sustainBegin >= 0) { - floatSample.setSustainBegin(sustainBegin); - floatSample.setSustainEnd(sustainEnd); - } - - for (SampleMarker marker : cueMap.values()) { - floatSample.addMarker(marker); - } - - /* Set Sustain Loop by assuming first two markers are loop points. */ - if (floatSample.getMarkerCount() >= 2) { - floatSample.setSustainBegin(floatSample.getMarker(0).position); - floatSample.setSustainEnd(floatSample.getMarker(1).position); - } - return floatSample; - } - - protected String parseString(IFFParser parser, int textLength) throws IOException { - byte[] bar = new byte[textLength]; - parser.read(bar); - return new String(bar); - } -} |