- 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
+ * āmod.somethingsomethingsomethingdarksideā).
+ *
+ * @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;