commit 5cb99ba836524a68d9dee51eb3690480f159135d Author: Nes370 Date: Mon Jul 15 11:52:50 2024 -0700 Initial commit diff --git a/.classpath b/.classpath new file mode 100644 index 0000000..5f705dd --- /dev/null +++ b/.classpath @@ -0,0 +1,8 @@ + + + + + + + + diff --git a/.project b/.project new file mode 100644 index 0000000..bb77eb5 --- /dev/null +++ b/.project @@ -0,0 +1,17 @@ + + + RR6AudioExtractor + + + + + + org.eclipse.jdt.core.javabuilder + + + + + + org.eclipse.jdt.core.javanature + + diff --git a/.settings/org.eclipse.core.resources.prefs b/.settings/org.eclipse.core.resources.prefs new file mode 100644 index 0000000..99f26c0 --- /dev/null +++ b/.settings/org.eclipse.core.resources.prefs @@ -0,0 +1,2 @@ +eclipse.preferences.version=1 +encoding/=UTF-8 diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs new file mode 100644 index 0000000..71f736f --- /dev/null +++ b/.settings/org.eclipse.jdt.core.prefs @@ -0,0 +1,14 @@ +eclipse.preferences.version=1 +org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled +org.eclipse.jdt.core.compiler.codegen.targetPlatform=12 +org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve +org.eclipse.jdt.core.compiler.compliance=12 +org.eclipse.jdt.core.compiler.debug.lineNumber=generate +org.eclipse.jdt.core.compiler.debug.localVariable=generate +org.eclipse.jdt.core.compiler.debug.sourceFile=generate +org.eclipse.jdt.core.compiler.problem.assertIdentifier=error +org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled +org.eclipse.jdt.core.compiler.problem.enumIdentifier=error +org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning +org.eclipse.jdt.core.compiler.release=enabled +org.eclipse.jdt.core.compiler.source=12 diff --git a/bin/goblincave/gitea/nes/AudioExtractor$1.class b/bin/goblincave/gitea/nes/AudioExtractor$1.class new file mode 100644 index 0000000..f007380 Binary files /dev/null and b/bin/goblincave/gitea/nes/AudioExtractor$1.class differ diff --git a/bin/goblincave/gitea/nes/AudioExtractor$2.class b/bin/goblincave/gitea/nes/AudioExtractor$2.class new file mode 100644 index 0000000..d5456f9 Binary files /dev/null and b/bin/goblincave/gitea/nes/AudioExtractor$2.class differ diff --git a/bin/goblincave/gitea/nes/AudioExtractor.class b/bin/goblincave/gitea/nes/AudioExtractor.class new file mode 100644 index 0000000..a37d8fb Binary files /dev/null and b/bin/goblincave/gitea/nes/AudioExtractor.class differ diff --git a/src/goblincave/gitea/nes/AudioExtractor.java b/src/goblincave/gitea/nes/AudioExtractor.java new file mode 100644 index 0000000..5bba95d --- /dev/null +++ b/src/goblincave/gitea/nes/AudioExtractor.java @@ -0,0 +1,268 @@ +package goblincave.gitea.nes; + +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.FilenameFilter; +import java.io.IOException; +import java.io.RandomAccessFile; +import java.net.URISyntaxException; +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.LinkedHashMap; +import java.util.Set; + +import org.apache.commons.io.FilenameUtils; + +import javaFlacEncoder.*; + +/** + * Ridge Racer 6 Audio Extractor + * @author Nes + * @version 1.0, 2024-07-14 + */ +public class AudioExtractor { + + /** + * BIN files must first be extracted from game disk to use this program. + * By default uses program directory for I/O and saves audio as WAV.
+ * + * You can simply run this program in the same directory as pack_*.bin files + * to launch with default arguments: 
extract currentDir currentDir wav
+ * + * @param args - 4 optional arguments
    + *
  1. "extract" or "pack" mode
    2. + *
  2. package directory containing pack_*.bin files
    3. + *
  3. extract directory for unpacked audio files
    4. + *
  4. extract BGM in "WAV" or "FLAC" format
+ * @throws URISyntaxException + */ + public static void main(String[] args) throws URISyntaxException { + + // Confirm input/output mode + boolean packMode = false; + if(args.length > 0) + packMode = args[0].equalsIgnoreCase("pack"); + + // Confirm package directory, else abort + File packDirectory; + if(args.length > 1) + packDirectory = Path.of(args[1]).toFile(); + else packDirectory = new File(new File(AudioExtractor.class.getProtectionDomain().getCodeSource().getLocation().toURI()).getParent()); + if(packMode && !packDirectory.exists() && !packDirectory.mkdir()) { + System.out.println("Package output directory " + packDirectory + " does not exist, and could not be created. Program execution aborted."); + System.exit(1); + } else if(!packMode && !packDirectory.exists()) { + System.out.println("Package input directory " + packDirectory + " does not exist. Program execution aborted."); + System.exit(1); + } + + // Confirm extract directory, else abort + File extractDirectory; + if(args.length > 2) + extractDirectory = Path.of(args[2]).toFile(); + else extractDirectory = packDirectory; + if(!packMode && !extractDirectory.exists() && !extractDirectory.mkdir()) { + System.out.println("Extract output directory " + extractDirectory + " does not exist, and could not be created. Program execution aborted."); + System.exit(2); + } + + // Confirm BGM output format + boolean compressBGM = false; + if(args.length > 3) + compressBGM = args[3].equalsIgnoreCase("FLAC"); + + // Begin operation + if(packMode) + pack(packDirectory, extractDirectory); + else extract(packDirectory, extractDirectory, compressBGM); + + } + + private static void pack(File packDirectory, File extractDirectory) { + + // 1. Compile list of WAV files in extracted directories + // 2. Check if pack files already exist in package directory + // 3. If pack file already exists, insert WAV files into existing file. + // 4. If pack file doesn't exist, create new file then insert WAV files. + + // Hypothesis 1: Does Ridge Racer 6 use a predetermined address list for reading tracks from package? + // Test 1: Try changing the address of a track and see if the game can handle it successfully. + + // Hypothesis 2: Does Ridge Racer 6 loop tracks in their entirety, or do they use loop points defined in the file header? + // Test 1: Try editing loop information and see if it affects in-game playback. + // Test 2: Try replacing a track with a WAV file without loop data and see if it loops in in-game playback. + + } + + public static void extract(File packDirectory, File extractDirectory, boolean compressBGM) { + + // TODO Delete + System.out.println("packDirectory:\t" + packDirectory); + System.out.println("extractDirectory:\t" + extractDirectory); + + // Identify target binary files + File[] packages = new File(packDirectory.toString()).listFiles(new FilenameFilter() { + public boolean accept(File dir, String name) { + return name.toLowerCase().endsWith(".bin"); + } + }); + + // Identify and extract audio within binary files + for(int i = 0; i < packages.length; i++) { + + RandomAccessFile source; + LinkedHashMap tracklist = null; + try { + source = new RandomAccessFile(packages[i], "r"); + tracklist = findAudioTracks(source); + } catch (FileNotFoundException e) { + System.out.println("Binary file:\t" + packages[i] + "\n was not found. File skipped."); + continue; + } catch (IOException e) { + System.out.println("Binary file:\t" + packages[i] + "\n could not be read. File skipped."); + continue; + } + + //TODO Delete + System.out.println("packages[" + i + "]:\t" + packages[i]); + + File dir = new File(extractDirectory.getPath() + "/" + FilenameUtils.removeExtension(packages[i].getName())); + if(!dir.exists()) + dir.mkdir(); + + // Extract and write WAV files in directory + Set keys = tracklist.keySet(); + int track = 1; + + for(Integer key : keys) { + + String name = String.format("track%04d", track); + { // Extract WAV files + File wav = null; + try { + + // create file for storing WAV data + wav = new File(dir.getPath() + "/" + name + ".wav"); + if(!wav.exists()) + wav.createNewFile(); + + //TODO Delete + System.out.println("Saving track " + String.format("%d (@0x%08X)", track, key) + " to " + wav + String.format(" (%d bytes)", tracklist.get(key))); + + // write selection to file + try ( + FileInputStream inStream = new FileInputStream(packages[i]); + FileOutputStream outStream = new FileOutputStream(wav) + ) { + inStream.skipNBytes(key.intValue()); + byte[] trackBytes = new byte[tracklist.get(key)]; + int readBytes = inStream.read(trackBytes); + outStream.write(trackBytes, 0, readBytes); + } catch (IOException e) { + e.printStackTrace(); + System.exit(3); + } + + } catch (IOException e) { + System.out.println("An error occurred when attempting to write " + name + " to file:\t" + wav); + e.printStackTrace(); + System.exit(3); + } + } + + track++; + + } + + if(compressBGM && packages[i].getName().equals("pack_bgm.bin")) { + + // find WAV files + File[] WAV_Files = dir.listFiles(new FilenameFilter() { + public boolean accept(File dir, String name) { + return name.toLowerCase().endsWith(".wav"); + } + }); + + // convert WAV files to FLAC + FLAC_FileEncoder ffe = new FLAC_FileEncoder(); + + for(File wav : WAV_Files) { + + try { + File flac = new File(dir.getPath() + "/" + FilenameUtils.removeExtension(wav.getName()) + ".flac"); + if(!flac.exists()) + flac.createNewFile(); + + //TODO Delete + System.out.println("Compressing WAV to FLAC:\t" + flac); + + ffe.encode(wav, flac); + } catch (IOException e) { + System.out.println("An error occurred when attempting to write file."); + e.printStackTrace(); + System.exit(3); + } + + } + + System.out.print("Deleting WAV files"); + // delete WAV files + for(File wav : WAV_Files) { + boolean deleted = false; + while(!deleted) { + try { + Files.delete(wav.toPath()); + deleted = true; + } catch(Exception e) { + System.out.print('.'); + } + } + } + + } + + } + + } + + /** + * Creates a map of audio tracks within provided file. + * + * @param file + * @return Tracklist containing address-length pairs + * @throws IOException + */ + public static LinkedHashMap findAudioTracks(RandomAccessFile file) throws IOException { + + LinkedHashMap tracklist = new LinkedHashMap(); + int key = 0x52494646; // "RIFF" in ASCII representation + + // Files start on addresses divisible by 0x800 + for(int a = 0; a + 0x800 < file.length(); a += 0x800) { + + file.seek(a); + + // File header starts with "RIFF" sequence + if(file.readInt() == key) { + + // Next 4 bytes specify file length beyond first 8 bytes, in little-endian representation + int length = 8; + // Calculate remaining length of file + for(int d = 0; d < 4; d++) { + file.seek(a + 4 + d); + length += file.readUnsignedByte() * ((int) Math.pow(16, 2 * d)); + } + + // Record file position in map + tracklist.put(a, length); + } + + } + + return tracklist; + + } + +}