StreamPlayer.java 文件源码

/**
 * Returns all available mixers.
 *
 * @return A List of available Mixers
 */
public List<String> getMixers() {
    List<String> mixers = new ArrayList<>();

    // Obtains an array of mixer info objects that represents the set of
    // audio mixers that are currently installed on the system.
    Mixer.Info[] mixerInfos = AudioSystem.getMixerInfo();

    if (mixerInfos != null)
        Arrays.stream(mixerInfos).forEach(mInfo -> {
            // line info
            Line.Info lineInfo = new Line.Info(SourceDataLine.class);
            Mixer mixer = AudioSystem.getMixer(mInfo);

            // if line supported
            if (mixer.isLineSupported(lineInfo))
                mixers.add(mInfo.getName());

        });

    return mixers;
}