AudioSystem.java 文件源码

public static boolean isLineSupported(Line.Info info) {

        for (Iterator providers = ProviderService.getProviders(
                mixerProviderPath).iterator(); providers.hasNext();) {
            try {
                MixerProvider pr = (MixerProvider) providers.next();
                Mixer.Info[] mixinfos = pr.getMixerInfo();
                for (Mixer.Info mixinfo : mixinfos) {
                    Mixer mix = pr.getMixer(mixinfo);
                    if (mix.isLineSupported(info)) {
                        return true;
                    }
                }
            } catch (ClassCastException e) {}
        }
        return false;
    }