AudioSystem.java 文件源码

/**
 * Obtains the file types that the system can write from the
 * audio input stream specified.
 * @param stream the audio input stream for which audio file type support
 * is queried
 * @return array of file types.  If no file types are supported,
 * an array of length 0 is returned.
 */
public static AudioFileFormat.Type[] getAudioFileTypes(AudioInputStream stream) {
    List providers = getAudioFileWriters();
    Set returnTypesSet = new HashSet();

    for(int i=0; i < providers.size(); i++) {
        AudioFileWriter writer = (AudioFileWriter) providers.get(i);
        AudioFileFormat.Type[] fileTypes = writer.getAudioFileTypes(stream);
        for(int j=0; j < fileTypes.length; j++) {
            returnTypesSet.add(fileTypes[j]);
        }
    }
    AudioFileFormat.Type returnTypes[] = (AudioFileFormat.Type[])
        returnTypesSet.toArray(new AudioFileFormat.Type[0]);
    return returnTypes;
}