Initial commit
Nes370
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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" path="src"/>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-12"/>
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<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/javaFlacEncoder"/>
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<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/Apache Commons IO"/>
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<classpathentry kind="output" path="bin"/>
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</classpath>
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@ -0,0 +1,17 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>RR6AudioExtractor</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.jdt.core.javanature</nature>
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</natures>
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</projectDescription>
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eclipse.preferences.version=1
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encoding/<project>=UTF-8
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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=12
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org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
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org.eclipse.jdt.core.compiler.compliance=12
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org.eclipse.jdt.core.compiler.debug.lineNumber=generate
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org.eclipse.jdt.core.compiler.debug.localVariable=generate
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org.eclipse.jdt.core.compiler.debug.sourceFile=generate
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org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
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org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
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org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
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org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
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org.eclipse.jdt.core.compiler.release=enabled
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org.eclipse.jdt.core.compiler.source=12
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package goblincave.gitea.nes;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.FilenameFilter;
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import java.io.IOException;
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import java.io.RandomAccessFile;
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import java.net.URISyntaxException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.LinkedHashMap;
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import java.util.Set;
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import org.apache.commons.io.FilenameUtils;
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import javaFlacEncoder.*;
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/**
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* Ridge Racer 6 Audio Extractor
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* @author Nes
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* @version 1.0, 2024-07-14
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*/
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public class AudioExtractor {
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/**
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* BIN files must first be extracted from game disk to use this program.
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* By default uses program directory for I/O and saves audio as WAV.<br>
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*
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* You can simply run this program in the same directory as <b>pack_*.bin</b> files
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* to launch with default arguments: <pre>extract currentDir currentDir wav</pre>
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*
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* @param args - 4 optional arguments<ol>
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* <li>"extract" or "pack" mode</li>
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* <li>package directory containing <b>pack_*.bin</b> files</li>
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* <li>extract directory for unpacked audio files</li>
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* <li>extract BGM in "WAV" or "FLAC" format</li></ol>
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* @throws URISyntaxException
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*/
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public static void main(String[] args) throws URISyntaxException {
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// Confirm input/output mode
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boolean packMode = false;
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if(args.length > 0)
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packMode = args[0].equalsIgnoreCase("pack");
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// Confirm package directory, else abort
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File packDirectory;
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if(args.length > 1)
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packDirectory = Path.of(args[1]).toFile();
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else packDirectory = new File(new File(AudioExtractor.class.getProtectionDomain().getCodeSource().getLocation().toURI()).getParent());
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if(packMode && !packDirectory.exists() && !packDirectory.mkdir()) {
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System.out.println("Package output directory " + packDirectory + " does not exist, and could not be created. Program execution aborted.");
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System.exit(1);
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} else if(!packMode && !packDirectory.exists()) {
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System.out.println("Package input directory " + packDirectory + " does not exist. Program execution aborted.");
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System.exit(1);
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}
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// Confirm extract directory, else abort
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File extractDirectory;
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if(args.length > 2)
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extractDirectory = Path.of(args[2]).toFile();
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else extractDirectory = packDirectory;
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if(!packMode && !extractDirectory.exists() && !extractDirectory.mkdir()) {
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System.out.println("Extract output directory " + extractDirectory + " does not exist, and could not be created. Program execution aborted.");
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System.exit(2);
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}
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// Confirm BGM output format
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boolean compressBGM = false;
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if(args.length > 3)
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compressBGM = args[3].equalsIgnoreCase("FLAC");
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// Begin operation
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if(packMode)
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pack(packDirectory, extractDirectory);
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else extract(packDirectory, extractDirectory, compressBGM);
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}
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private static void pack(File packDirectory, File extractDirectory) {
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// 1. Compile list of WAV files in extracted directories
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// 2. Check if pack files already exist in package directory
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// 3. If pack file already exists, insert WAV files into existing file.
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// 4. If pack file doesn't exist, create new file then insert WAV files.
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// Hypothesis 1: Does Ridge Racer 6 use a predetermined address list for reading tracks from package?
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// Test 1: Try changing the address of a track and see if the game can handle it successfully.
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// Hypothesis 2: Does Ridge Racer 6 loop tracks in their entirety, or do they use loop points defined in the file header?
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// Test 1: Try editing loop information and see if it affects in-game playback.
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// Test 2: Try replacing a track with a WAV file without loop data and see if it loops in in-game playback.
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}
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public static void extract(File packDirectory, File extractDirectory, boolean compressBGM) {
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// TODO Delete
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System.out.println("packDirectory:\t" + packDirectory);
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System.out.println("extractDirectory:\t" + extractDirectory);
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// Identify target binary files
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File[] packages = new File(packDirectory.toString()).listFiles(new FilenameFilter() {
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public boolean accept(File dir, String name) {
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return name.toLowerCase().endsWith(".bin");
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}
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});
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// Identify and extract audio within binary files
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for(int i = 0; i < packages.length; i++) {
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RandomAccessFile source;
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LinkedHashMap<Integer, Integer> tracklist = null;
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try {
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source = new RandomAccessFile(packages[i], "r");
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tracklist = findAudioTracks(source);
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} catch (FileNotFoundException e) {
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System.out.println("Binary file:\t" + packages[i] + "\n was not found. File skipped.");
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continue;
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} catch (IOException e) {
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System.out.println("Binary file:\t" + packages[i] + "\n could not be read. File skipped.");
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continue;
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}
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//TODO Delete
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System.out.println("packages[" + i + "]:\t" + packages[i]);
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File dir = new File(extractDirectory.getPath() + "/" + FilenameUtils.removeExtension(packages[i].getName()));
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if(!dir.exists())
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dir.mkdir();
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// Extract and write WAV files in directory
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Set<Integer> keys = tracklist.keySet();
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int track = 1;
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for(Integer key : keys) {
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String name = String.format("track%04d", track);
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{ // Extract WAV files
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File wav = null;
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try {
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// create file for storing WAV data
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wav = new File(dir.getPath() + "/" + name + ".wav");
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if(!wav.exists())
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wav.createNewFile();
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//TODO Delete
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System.out.println("Saving track " + String.format("%d (@0x%08X)", track, key) + " to " + wav + String.format(" (%d bytes)", tracklist.get(key)));
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// write selection to file
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try (
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FileInputStream inStream = new FileInputStream(packages[i]);
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FileOutputStream outStream = new FileOutputStream(wav)
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) {
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inStream.skipNBytes(key.intValue());
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byte[] trackBytes = new byte[tracklist.get(key)];
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int readBytes = inStream.read(trackBytes);
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outStream.write(trackBytes, 0, readBytes);
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} catch (IOException e) {
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e.printStackTrace();
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System.exit(3);
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}
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} catch (IOException e) {
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System.out.println("An error occurred when attempting to write " + name + " to file:\t" + wav);
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e.printStackTrace();
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System.exit(3);
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}
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}
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track++;
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}
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if(compressBGM && packages[i].getName().equals("pack_bgm.bin")) {
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// find WAV files
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File[] WAV_Files = dir.listFiles(new FilenameFilter() {
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public boolean accept(File dir, String name) {
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return name.toLowerCase().endsWith(".wav");
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}
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});
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// convert WAV files to FLAC
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FLAC_FileEncoder ffe = new FLAC_FileEncoder();
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for(File wav : WAV_Files) {
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try {
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File flac = new File(dir.getPath() + "/" + FilenameUtils.removeExtension(wav.getName()) + ".flac");
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if(!flac.exists())
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flac.createNewFile();
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//TODO Delete
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System.out.println("Compressing WAV to FLAC:\t" + flac);
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ffe.encode(wav, flac);
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} catch (IOException e) {
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System.out.println("An error occurred when attempting to write file.");
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e.printStackTrace();
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System.exit(3);
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}
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}
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System.out.print("Deleting WAV files");
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// delete WAV files
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for(File wav : WAV_Files) {
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boolean deleted = false;
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while(!deleted) {
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try {
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Files.delete(wav.toPath());
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deleted = true;
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} catch(Exception e) {
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System.out.print('.');
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}
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}
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}
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}
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}
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}
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/**
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* Creates a map of audio tracks within provided file.
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*
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* @param file
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* @return Tracklist containing address-length pairs
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* @throws IOException
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*/
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public static LinkedHashMap<Integer, Integer> findAudioTracks(RandomAccessFile file) throws IOException {
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LinkedHashMap<Integer, Integer> tracklist = new LinkedHashMap<Integer, Integer>();
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int key = 0x52494646; // "RIFF" in ASCII representation
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// Files start on addresses divisible by 0x800
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for(int a = 0; a + 0x800 < file.length(); a += 0x800) {
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file.seek(a);
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// File header starts with "RIFF" sequence
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if(file.readInt() == key) {
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// Next 4 bytes specify file length beyond first 8 bytes, in little-endian representation
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int length = 8;
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// Calculate remaining length of file
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for(int d = 0; d < 4; d++) {
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file.seek(a + 4 + d);
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length += file.readUnsignedByte() * ((int) Math.pow(16, 2 * d));
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}
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// Record file position in map
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tracklist.put(a, length);
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}
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}
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return tracklist;
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}
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}
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Loading…
Reference in New Issue