AudioSystem.java 文件源码

/** From a List of MixerProviders, return a Mixer with a given name.
    This method never requires the returned Mixer to do mixing.
    @param mixerName The name of the Mixer to be returned.
    @param providers The List of MixerProviders to check for Mixers.
    @param info The type of line the returned Mixer is required to
    support.
    @return A Mixer matching the requirements, or null if none is found.
 */
private static Mixer getNamedMixer(String mixerName,
                                   List providers,
                                   Line.Info info) {
    for(int i = 0; i < providers.size(); i++) {
        MixerProvider provider = (MixerProvider) providers.get(i);
        Mixer mixer = getNamedMixer(mixerName, provider, info);
        if (mixer != null) {
            return mixer;
        }
    }
    return null;
}