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A port of the Free Lossless Audio Codec (FLAC) decoder to Java and a FLAC encoder implemented in Java.
package org.kc7bfi.jflac.metadata;
/**
* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2001,2002,2003 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
import java.io.IOException;
import org.kc7bfi.jflac.io.BitInputStream;
/**
* An entry into the cue sheet.
* @author kc7bfi
*/
public class CueTrack {
private static final int CUESHEET_TRACK_OFFSET_LEN = 64; // bits
private static final int CUESHEET_TRACK_NUMBER_LEN = 8; // bits
private static final int CUESHEET_TRACK_ISRC_LEN = 12 * 8; // bits
private static final int CUESHEET_TRACK_TYPE_LEN = 1; // bit
private static final int CUESHEET_TRACK_PRE_EMPHASIS_LEN = 1; // bit
private static final int CUESHEET_TRACK_RESERVED_LEN = 6 + 13 * 8; // bits
private static final int CUESHEET_TRACK_NUM_INDICES_LEN = 8; // bits
protected long offset; // Track offset in samples, relative to the beginning of the FLAC audio stream.
protected byte number; // The track number.
protected byte[] isrc = new byte[13]; // Track ISRC. This is a 12-digit alphanumeric code plus a trailing '\0'
protected int type; // The track type: 0 for audio, 1 for non-audio.
protected int preEmphasis; // The pre-emphasis flag: 0 for no pre-emphasis, 1 for pre-emphasis.
protected byte numIndices; // The number of track index points.
protected CueIndex[] indices; // NULL if num_indices == 0, else pointer to array of index points.
/**
* The constructor.
* @param is The InputBitStream
* @throws IOException Thrown if error reading from InputBitStream
*/
public CueTrack(BitInputStream is) throws IOException {
offset = is.readRawULong(CUESHEET_TRACK_OFFSET_LEN);
number = (byte) is.readRawUInt(CUESHEET_TRACK_NUMBER_LEN);
is.readByteBlockAlignedNoCRC(isrc, CUESHEET_TRACK_ISRC_LEN / 8);
type = is.readRawUInt(CUESHEET_TRACK_TYPE_LEN);
preEmphasis = is.readRawUInt(CUESHEET_TRACK_PRE_EMPHASIS_LEN);
is.skipBitsNoCRC(CUESHEET_TRACK_RESERVED_LEN);
numIndices = (byte) is.readRawUInt(CUESHEET_TRACK_NUM_INDICES_LEN);
if (numIndices > 0) {
indices = new CueIndex[numIndices];
for (int j = 0; j < numIndices; j++) {
indices[j] = new CueIndex(is);
}
}
}
}
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