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A port of the Free Lossless Audio Codec (FLAC) decoder to Java and a FLAC encoder implemented in Java.

There is a newer version: 1.4.1

/**
 * 
 */
package org.kc7bfi.jflac.sound.spi;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;

import org.kc7bfi.jflac.metadata.StreamInfo;

/**
 * An AudioFormat instance wrapping a FLAC StreamInfo object. With Java 5.0
 * style properties support.
 * 
 * @author Florian Bomers
 */
public class FlacAudioFormat extends AudioFormat {

	private final HashMap props;

	public FlacAudioFormat(StreamInfo streamInfo) {
		super(FlacEncoding.FLAC, streamInfo.getSampleRate(),
				streamInfo.getBitsPerSample(), streamInfo.getChannels(),
				/* streamInfo.maxFrameSize */AudioSystem.NOT_SPECIFIED,
				streamInfo.getSampleRate(), false);
		props = new HashMap<>();
		props.put("bitrate", streamInfo.getBitsPerSample());
		props.put("vbr", true);
	}

	/**
	 * Java 5.0 compatible method to get the full map of properties. The
	 * properties use the KEY_ keys defined in this class.
	 */
	public Map properties() {
		Map ret;
		if (props == null) {
			ret = new HashMap<>(0);
		} else {
			ret = (Map) props.clone();
		}
		return Collections.unmodifiableMap(ret);
	}

	/**
	 * Java 5.0 compatible method to get a property. As key use the KEY_ constants defined in this class.
	 */
	public Object getProperty(String key) {
		if (props == null) {
			return null;
		}
		return props.get(key);
	}

}