X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fdemoscenemusic%2Futils%2FAudioCodecs.java;h=4329fccb438d75992224423b7e4428c341a288c7;hb=70e99ae2ccefa4cebec5b282ff0d528ab1654d74;hp=a3c90c36206d0a4e97e0f54e4329050c2b921265;hpb=19389257f2b497d8edc6eb6d3ea1ca5f3a4bcbbc;p=demoscenemusic.git

diff --git a/src/main/java/net/pterodactylus/demoscenemusic/utils/AudioCodecs.java b/src/main/java/net/pterodactylus/demoscenemusic/utils/AudioCodecs.java
index a3c90c3..4329fcc 100644
--- a/src/main/java/net/pterodactylus/demoscenemusic/utils/AudioCodecs.java
+++ b/src/main/java/net/pterodactylus/demoscenemusic/utils/AudioCodecs.java
@@ -31,13 +31,42 @@ public class AudioCodecs {
 	public static final Map<String, AudioCodecDescription> codecDescriptions = new HashMap<String, AudioCodecDescription>();
 
 	static {
-		codecDescriptions.put("mp3", new AudioCodecDescription("MPEG 1 Layer 3", "MP3", "audio/mpeg", true, false));
-		codecDescriptions.put("vorbis", new AudioCodecDescription("Ogg Vorbis", "Vorbis", "audio/vorbis", true, false));
-		codecDescriptions.put("aac", new AudioCodecDescription("Advanced Audio Coding", "AAC", "audio/x-aac", true, false));
-		codecDescriptions.put("flac", new AudioCodecDescription("Free Lossless Audio Codec", "FLAC", "audio/ogg", true, true));
-		codecDescriptions.put("WAV", new AudioCodecDescription("Waveform Audio", "WAV", "audio/vnc.wave", true, true));
-		codecDescriptions.put("mod", new AudioCodecDescription("Module", "MOD", "audio/mod", false, true));
-		codecDescriptions.put("ft2", new AudioCodecDescription("FastTracker II Module", "XM", "audio/xm", false, true));
+		codecDescriptions.put("mp3", new AudioCodecDescription("mp3", "MPEG 1 Layer 3", "MP3", "audio/mpeg", true, false));
+		codecDescriptions.put("vorbis", new AudioCodecDescription("vorbis", "Ogg Vorbis", "Vorbis", "audio/vorbis", true, false));
+		codecDescriptions.put("aac", new AudioCodecDescription("aac", "Advanced Audio Coding", "AAC", "audio/x-aac", true, false));
+		codecDescriptions.put("flac", new AudioCodecDescription("flac", "Free Lossless Audio Codec", "FLAC", "audio/ogg", true, true));
+		codecDescriptions.put("wav", new AudioCodecDescription("wav", "Waveform Audio", "WAV", "audio/vnc.wave", true, true));
+		codecDescriptions.put("mod", new AudioCodecDescription("mod", "Module", "MOD", "audio/mod", false, true));
+		codecDescriptions.put("ft2", new AudioCodecDescription("ft2", "FastTracker II Module", "XM", "audio/xm", false, true));
+	}
+
+	/**
+	 * Tries to automatically detect the audio codec from the filename. In most
+	 * cases this will match the {@link AudioCodecDescription#code} of the codec
+	 * but in some cases other extensions are possible, too. Also, on Amiga
+	 * filenames usually start with the extension (mod files are often named
+	 * “mod.somethingsomethingsomethingdarkside”).
+	 *
+	 * @param filename
+	 *            The name of the file
+	 * @return The audio codec of the file, or {@code null} if no codec could be
+	 *         detected
+	 */
+	public static AudioCodecDescription detect(String filename) {
+		String extension = filename.substring(filename.lastIndexOf('.') + 1).toLowerCase();
+		if (codecDescriptions.containsKey(extension)) {
+			return codecDescriptions.get(extension);
+		}
+		if (extension.equals("ogg")) {
+			return codecDescriptions.get("vorbis");
+		}
+		if (extension.equals("mp4")) {
+			return codecDescriptions.get("aac");
+		}
+		if (extension.equals("xm")) {
+			return codecDescriptions.get("ft2");
+		}
+		return null;
 	}
 
 	/**
@@ -49,6 +78,9 @@ public class AudioCodecs {
 	 */
 	public final static class AudioCodecDescription {
 
+		/** The code of this codec. */
+		public final String code;
+
 		/** The full name of the codec. */
 		public final String name;
 
@@ -67,6 +99,8 @@ public class AudioCodecs {
 		/**
 		 * Creates a new audio codec description.
 		 *
+		 * @param code
+		 *            The code of the codec
 		 * @param name
 		 *            The full name of the codec
 		 * @param shortName
@@ -80,7 +114,8 @@ public class AudioCodecs {
 		 *            {@code true} if the codec is a lossless audio codec,
 		 *            {@code false} otherwise
 		 */
-		AudioCodecDescription(String name, String shortName, String mimeType, boolean streaming, boolean lossless) {
+		AudioCodecDescription(String code, String name, String shortName, String mimeType, boolean streaming, boolean lossless) {
+			this.code = code;
 			this.name = name;
 			this.shortName = shortName;
 			this.mimeType = mimeType;
@@ -88,6 +123,18 @@ public class AudioCodecs {
 			this.lossless = lossless;
 		}
 
+		//
+		// OBJECT METHODS
+		//
+
+		/**
+		 * {@inheritDoc}
+		 */
+		@Override
+		public String toString() {
+			return String.format("AudioCodec[%s,%s,%s,%s,%s,%s]", code, name, shortName, mimeType, streaming, lossless);
+		}
+
 	}
 
 }