Added a readme file and bumped to JDK 17

.classpath

@@ -2,11 +2,7 @@
 <classpath>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="src" path="res"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-12">
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17"/>
-		<attributes>
-			<attribute name="module" value="true"/>
-		</attributes>
-	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/javaFlacEncoder"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/Apache Commons IO"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/JColor"/>

.settings/org.eclipse.jdt.core.prefs

@@ -1,8 +1,8 @@
 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.targetPlatform=17
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=12
+org.eclipse.jdt.core.compiler.compliance=17
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
@@ -11,4 +11,4 @@ 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
+org.eclipse.jdt.core.compiler.source=17

README.md

@@ -0,0 +1,64 @@
+## Ridge Racer 6 Audio Extractor
+
+*RR6AudioExtractor* is a tool to extract, convert, and repackage audio from Ridge Racer 6 audio packs.
+
+### Requirements
+
+- *RR6AudioExtractor* requires that you have Java SE 17 or higher installed to run. 
+	- To install, download the latest JRE (recommended) or JDK from [Adoptium](https://adoptium.net/temurin/archive/?version=17), or JDK from [Oracle](https://www.oracle.com/java/technologies/downloads/#java17).
+
+### Usage
+
+Launch console interface
+```
+java -jar RR6AudioExtractor.java
+```
+
+Identify a file
+```
+java -jar RR6AudioExtractor.java identify <file>
+```
+
+Extract audio files from a RR6 audio pack (`BIN` → `WAV`/`XMA`)
+```
+java -jar RR6AudioExtractor.java extract <package file>
+```
+
+Convert audio files between supported formats (`WAV` ↔ `XMA` ↔ `FLAC`)
+```
+java -jar RR6AudioExtractor.java convert <audio file> <format>
+```
+
+Patch an audio file to repeat (`WAV`)
+```
+java - jar RR6AudioExtractor.java patch <audio file>
+```
+
+Pack audio files into a RR6 audio pack (`WAV`/`XMA` → `BIN`)
+```
+java -jar RR6AudioExtractor.java pack <audio directory>
+```
+
+Print a Ridge Racer 6 style ASCII logo
+```
+java -jar RR6AudioExtractor.java print <color> <text>
+``` 
+
+### About
+
+*RR6AudioExtractor* is developed by [Nes](https://gitea.goblincave.synology.me/Nes).
+
+### Referenced Libraries
+
+*RR6AudioExtractor* makes use of several Java libraries:
+- [Apache Commons Codec](https://commons.apache.org/proper/commons-codec/) v1.17.1
+- [Apache Commons CSV](https://commons.apache.org/proper/commons-csv/) v1.11.0
+- [Apache Commons IO](https://commons.apache.org/proper/commons-io/) v2.16.1
+- [javaFlacEncoder](https://javaflacencoder.sourceforge.net/) v0.3.2
+- [JColor](https://github.com/dialex/JColor) v5.5.1
+
+### Recommended Software
+
+- [*Xbox Image Browser*](https://digiex.net/threads/xbox-360-image-browser-2-9-0-350-xiso-browser-and-extractor.3136/) by Redline99
+	- For extracting and replacing files from Xbox Disc Images (`ISO`).
+

src/goblincave/gitea/nes/AudioExtractor.java

@@ -129,9 +129,14 @@ public class AudioExtractor {
 					}
 					
 					case "convert": {
-//						File audioFile = retrieveAudio(reader);
+						File audioFile = retrieveAudio(reader); // Confirms file has WAV/XMA/FLAC extension + header
-//						if(audioFile.isFile())
+						if(audioFile.isFile()) {
+							String extension = FilenameUtils.getExtension(audioFile.getName());
+							// Ensure file has the right encoding (differentiate between WAV/XMA)
+							int encoding = 0;
+//							RandomAccessFile raf = new RandomAccessFile(audioFile, "r");
 //							convert(audioFile, encoding);
+						}
 						
 					}
 					
@@ -162,6 +167,81 @@ public class AudioExtractor {
 		
 	}
 	
+	/**
+	 * Helper function to prompt user to select a convertible audio file.
+	 * 
+	 * @param reader
+	 * @return audio file
+	 */
+	private static File retrieveAudio(BufferedReader reader) {
+		
+		File file = null;
+		
+		String input = null;
+		boolean valid = false;
+		do {
+			System.out.print("Please enter the path of a file\t" + ANSI_BEIGE);
+			try {
+				input = reader.readLine();
+				file = new File(input);
+				if(file.exists()) {
+					if(file.isFile()) {
+						
+						String name = file.getName().toLowerCase();
+						String extension = FilenameUtils.getExtension(name);
+						
+						if(extension.equals("wav") || extension.equals("xma")) {
+							// check for RIFF header
+							byte[] bytes = new byte[4];
+							RandomAccessFile raf = new RandomAccessFile(file, "r");
+							raf.seek(0x0);
+							if(raf.readInt() == ASCII_RIFF) {
+								raf.seek(0x14);
+								raf.read(bytes);
+								int encoding = littleEndianToInt(bytes);
+								if(encoding == 0x0001)
+									valid = true;
+								else if(encoding == 0x0165)
+									valid = true;
+								else {
+									System.out.println("Unsupported encoding" + identifyEncoding(encoding) + ".");
+								}
+							}
+							else System.out.println("Not a valid RIFF file.");
+							
+						} else if (name.endsWith(".flac")) {
+							// check for FLAC header
+							byte[] bytes = new byte[4];
+							RandomAccessFile raf = new RandomAccessFile(file, "r");
+							raf.seek(0);
+							if(raf.readInt() == ASCII_fLaC)
+								valid = true;
+							else System.out.println("Not a valid FLAC file.");
+							
+						} else System.out.println(Ansi.colorize("File does not have a supported file extension."));
+						
+					}
+				} else System.out.println(Ansi.colorize("File does not exist."));
+			} catch (IOException e) {
+				System.out.println(Ansi.colorize("Invalid file."));
+			}
+		} while(!valid);
+		
+		return file;
+		
+	}
+
+	/**
+	 * Get the name of a WAVE encoding from its value.
+	 * 
+	 * @param encoding
+	 * @return
+	 */
+	private static String identifyEncoding(int encoding) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
 	/**
 	 * Examines a given file and reads some of its properties.
 	 * 
@@ -253,7 +333,8 @@ public class AudioExtractor {
 			RandomAccessFile file = new RandomAccessFile(packageFile, "r");
 			LinkedHashMap<Integer, Integer> tracklist = findAudioTracks(file);
 			
-			File dir = new File(packageFile.getAbsoluteFile().getParentFile().toPath() + "/" + FilenameUtils.removeExtension(packageFile.getName()));
+			File dir = new File(packageFile.getAbsoluteFile().getParentFile().toPath() + "/" 
+					+ FilenameUtils.removeExtension(packageFile.getName()));
 			if(!dir.exists())
 				dir.mkdir();
 			
@@ -622,7 +703,7 @@ public class AudioExtractor {
 		boolean valid = false;
 		do {
 			
-			// Retrieve an audio file
+			// Retrieve a file or folder
 			packageFile = retrieveFileOrFolder(reader, prompt);
 			
 			if(packageFile.isFile()) {