AudioSystem.java 文件源码

/**
 * Like getMixerInfo, but return List.
 *
 * @param  providers The list of MixerProviders
 * @return a List of info objects for the currently installed mixers. If no
 *         mixers are available on the system, an empty List is returned.
 * @see #getMixerInfo()
 */
private static List<Mixer.Info> getMixerInfoList(List<MixerProvider> providers) {
    List<Mixer.Info> infos = new ArrayList<>();

    Mixer.Info[] someInfos; // per-mixer
    Mixer.Info[] allInfos;  // for all mixers

    for(int i = 0; i < providers.size(); i++ ) {
        someInfos = providers.get(i).getMixerInfo();

        for (int j = 0; j < someInfos.length; j++) {
            infos.add(someInfos[j]);
        }
    }

    return infos;
}