javax.sound.sampled.SourceDataLine#Info ( )源码实例Demo

public static void main(String[] args) throws LineUnavailableException, IOException {
  AudioPlayerManager manager = new DefaultAudioPlayerManager();
  AudioSourceManagers.registerRemoteSources(manager);
  manager.getConfiguration().setOutputFormat(COMMON_PCM_S16_BE);

  AudioPlayer player = manager.createPlayer();

  manager.loadItem("ytsearch: epic soundtracks", new FunctionalResultHandler(null, playlist -> {
    player.playTrack(playlist.getTracks().get(0));
  }, null, null));

  AudioDataFormat format = manager.getConfiguration().getOutputFormat();
  AudioInputStream stream = AudioPlayerInputStream.createStream(player, format, 10000L, false);
  SourceDataLine.Info info = new DataLine.Info(SourceDataLine.class, stream.getFormat());
  SourceDataLine line = (SourceDataLine) AudioSystem.getLine(info);

  line.open(stream.getFormat());
  line.start();

  byte[] buffer = new byte[COMMON_PCM_S16_BE.maximumChunkSize()];
  int chunkSize;

  while ((chunkSize = stream.read(buffer)) >= 0) {
    line.write(buffer, 0, chunkSize);
  }
}
 

public static void printAudioInfo() {
		P.out("----------------- printAudioInfo -------------------");
		Mixer.Info[] mixerInfo = AudioSystem.getMixerInfo();
		for(int i = 0; i < mixerInfo.length; i++) {
			P.out("########## mixerInfo["+i+"]", mixerInfo[i].getName());

//			Mixer mixer = AudioSystem.getMixer(null); // default mixer
			Mixer mixer = AudioSystem.getMixer(mixerInfo[i]); // default mixer
			try {
				mixer.open();
			} catch (LineUnavailableException e) {
				e.printStackTrace();
			}
	
			P.out("Supported SourceDataLines of default mixer (%s):\n\n", mixer.getMixerInfo().getName());
			for(Line.Info info : mixer.getSourceLineInfo()) {
			    if(SourceDataLine.class.isAssignableFrom(info.getLineClass())) {
			        SourceDataLine.Info info2 = (SourceDataLine.Info) info;
			        P.out(info2);
			        System.out.printf("  max buffer size: \t%d\n", info2.getMaxBufferSize());
			        System.out.printf("  min buffer size: \t%d\n", info2.getMinBufferSize());
			        AudioFormat[] formats = info2.getFormats();
			        P.out("  Supported Audio formats: ");
			        for(AudioFormat format : formats) {
			        	P.out("    "+format);
			          System.out.printf("      encoding:           %s\n", format.getEncoding());
			          System.out.printf("      channels:           %d\n", format.getChannels());
			          System.out.printf(format.getFrameRate()==-1?"":"      frame rate [1/s]:   %s\n", format.getFrameRate());
			          System.out.printf("      frame size [bytes]: %d\n", format.getFrameSize());
			          System.out.printf(format.getSampleRate()==-1?"":"      sample rate [1/s]:  %s\n", format.getSampleRate());
			          System.out.printf("      sample size [bit]:  %d\n", format.getSampleSizeInBits());
			          System.out.printf("      big endian:         %b\n", format.isBigEndian());
			          
			          Map<String,Object> prop = format.properties();
			          if(!prop.isEmpty()) {
			        	  P.out("      Properties: ");
			              for(Map.Entry<String, Object> entry : prop.entrySet()) {
			                  System.out.printf("      %s: \t%s\n", entry.getKey(), entry.getValue());
			              }
			          }
			        }
			        P.out();
			    } else {
			    	P.out(info.toString());
			    }
			    P.out();
			}
			mixer.close();
		}
	}