Java Code Examples for javax.sound.sampled.AudioFormat.Encoding#PCM_SIGNED

/**
 * Convert the audio bytes into the stream
 * 
 * @param format The audio format being decoded
 * @param audio_bytes The audio byts
 * @param two_bytes_data True if we using double byte data
 * @return The byte bufer of data
 */
private static ByteBuffer convertAudioBytes(AudioFormat format, byte[] audio_bytes, boolean two_bytes_data) {
	ByteBuffer dest = ByteBuffer.allocateDirect(audio_bytes.length);
	dest.order(ByteOrder.nativeOrder());
	ByteBuffer src = ByteBuffer.wrap(audio_bytes);
	src.order(ByteOrder.BIG_ENDIAN);
	if (two_bytes_data) {
		ShortBuffer dest_short = dest.asShortBuffer();
		ShortBuffer src_short = src.asShortBuffer();
		while (src_short.hasRemaining())
			dest_short.put(src_short.get());
	} else {
		while (src.hasRemaining()) {
			byte b = src.get();
			if (format.getEncoding() == Encoding.PCM_SIGNED) {
				b = (byte) (b + 127);
			}
			dest.put(b);
		}
	}
	dest.rewind();
	return dest;
}
 

public static javax.sound.sampled.AudioFormat toAudioFormat(Format fmt) {
    // We always use PCM_SIGNED or PCM_UNSIGNED
    return new javax.sound.sampled.AudioFormat(
            !fmt.containsKey(SignedKey) || fmt.get(SignedKey) ? Encoding.PCM_SIGNED : Encoding.PCM_UNSIGNED,
            fmt.get(SampleRateKey).floatValue(),
            fmt.get(SampleSizeInBitsKey, 16),
            fmt.get(ChannelsKey, 1),
            fmt.containsKey(FrameSizeKey) ? fmt.get(FrameSizeKey) : (fmt.get(SampleSizeInBitsKey, 16) + 7) / 8 * fmt.get(ChannelsKey, 1),
            fmt.containsKey(FrameRateKey) ? fmt.get(FrameRateKey).floatValue() : fmt.get(SampleRateKey).floatValue(),
            fmt.containsKey(ByteOrderKey) ? fmt.get(ByteOrderKey) == ByteOrder.BIG_ENDIAN : true);
}
 

public Encoding[] getSourceEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public WavPCMAudioInputStreamFilter(AudioInputStream audioIn) {
	super(audioIn);
	sourceFormat = audioIn.getFormat();
	Set<Conversion> conversions = getRequiredConversions(sourceFormat);
	applyConversions = conversions.size() > 0;
	frameSize = sourceFormat.getFrameSize();
	sampleSize = sourceFormat.getSampleSizeInBits() / 8;
	Encoding encoding;
	if (conversions.contains(Conversion.TO_SIGNED)) {
		encoding = Encoding.PCM_SIGNED;
		if (sampleSize == 1) {
			// values are input unsigned as [0, 255], and output to
			// [-128,127]
			valueDelta = -128;
		} else {
			// values are input unsigned as [0, 65535], and output to
			// [-32768,32767]
			valueDelta = -32768;
		}
	} else if (conversions.contains(Conversion.TO_UNSIGNED)) {
		encoding = Encoding.PCM_UNSIGNED;
		if (sampleSize == 1) {
			// values are input unsigned as [-128,127], and output to [0,
			// 255]
			valueDelta = 128;
		} else {
			// values are input unsigned as [-32768,32767], and output to
			// [0, 65535]
			valueDelta = 32768;
		}
	} else {
		encoding = sourceFormat.getEncoding();
		valueDelta = 0;
	}
	destFormat = new AudioFormat(encoding, sourceFormat.getSampleRate(),
			sourceFormat.getSampleSizeInBits(), sourceFormat.getChannels(),
			sourceFormat.getFrameSize(), sourceFormat.getFrameRate(),
			false, sourceFormat.properties());
	samplesPerFrame = frameSize / sampleSize;

	isSourceBigEndian = sourceFormat.isBigEndian();
	isDestBigEndian = destFormat.isBigEndian();
	isSourceSigned = sourceFormat.getEncoding().equals(Encoding.PCM_SIGNED);
	isDestSigned = destFormat.getEncoding().equals(Encoding.PCM_SIGNED);
}
 

public Encoding[] getTargetEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getSourceEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getSourceEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            AudioFloatConverter.PCM_FLOAT };
}
 

public Encoding[] getTargetEncodings(AudioFormat sourceFormat) {
    if (AudioFloatConverter.getConverter(sourceFormat) == null)
        return new Encoding[0];
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getTargetEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getSourceEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

@Override
public AudioFormat.Encoding[] getSourceEncodings() {
    return new Encoding[]{Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED};
}
 

public Encoding[] getSourceEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getSourceEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getTargetEncodings(AudioFormat sourceFormat) {
    if (AudioFloatConverter.getConverter(sourceFormat) == null)
        return new Encoding[0];
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getTargetEncodings(AudioFormat sourceFormat) {
    if (AudioFloatConverter.getConverter(sourceFormat) == null)
        return new Encoding[0];
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getTargetEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getTargetEncodings(AudioFormat sourceFormat) {
    if (AudioFloatConverter.getConverter(sourceFormat) == null)
        return new Encoding[0];
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getTargetEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getTargetEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}
 

public Encoding[] getTargetEncodings() {
    return new Encoding[] { Encoding.PCM_SIGNED, Encoding.PCM_UNSIGNED,
            Encoding.PCM_FLOAT };
}