AudioSystem.java 文件源码

/**
 * Indicates whether an audio input stream of the specified encoding can be
 * obtained from an audio input stream that has the specified format.
 *
 * @param  targetEncoding the desired encoding after conversion
 * @param  sourceFormat the audio format before conversion
 * @return {@code true} if the conversion is supported, otherwise
 *         {@code false}
 * @throws NullPointerException if {@code targetEncoding} or
 *         {@code sourceFormat} are {@code null}
 */
public static boolean isConversionSupported(AudioFormat.Encoding targetEncoding, AudioFormat sourceFormat) {
    Objects.requireNonNull(targetEncoding);
    Objects.requireNonNull(sourceFormat);
    if (sourceFormat.getEncoding().equals(targetEncoding)) {
        return true;
    }

    List<FormatConversionProvider> codecs = getFormatConversionProviders();

    for(int i=0; i<codecs.size(); i++ ) {
        FormatConversionProvider codec = codecs.get(i);
        if(codec.isConversionSupported(targetEncoding,sourceFormat) ) {
            return true;
        }
    }
    return false;
}