下面列出了javax.sound.sampled.AudioSystem#NOT_SPECIFIED 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
public int write(AudioInputStream stream, AudioFileFormat.Type fileType, OutputStream out) throws IOException {
//$$fb the following check must come first ! Otherwise
// the next frame length check may throw an IOException and
// interrupt iterating File Writers. (see bug 4351296)
// throws IllegalArgumentException if not supported
WaveFileFormat waveFileFormat = (WaveFileFormat)getAudioFileFormat(fileType, stream);
//$$fb when we got this far, we are committed to write this file
// we must know the total data length to calculate the file length
if( stream.getFrameLength() == AudioSystem.NOT_SPECIFIED ) {
throw new IOException("stream length not specified");
}
int bytesWritten = writeWaveFile(stream, waveFileFormat, out);
return bytesWritten;
}
@Override
public void run() {
log("ConversionThread[" + num + "] started.");
try {
InputStream inStream = new ByteArrayInputStream(pcmBuffer);
AudioInputStream pcmStream = new AudioInputStream(
inStream, pcmFormat, AudioSystem.NOT_SPECIFIED);
AudioInputStream alawStream = AudioSystem.getAudioInputStream(alawFormat, pcmStream);
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
int read = 0;
byte[] data = new byte[4096];
while((read = alawStream.read(data)) != -1) {
outStream.write(data, 0, read);
}
alawStream.close();
resultArray = outStream.toByteArray();
} catch (Exception ex) {
log("ConversionThread[" + num + "] exception:");
log(ex);
}
log("ConversionThread[" + num + "] completed.");
}
public int write(AudioInputStream stream, AudioFileFormat.Type fileType, OutputStream out) throws IOException {
//$$fb the following check must come first ! Otherwise
// the next frame length check may throw an IOException and
// interrupt iterating File Writers. (see bug 4351296)
// throws IllegalArgumentException if not supported
AiffFileFormat aiffFileFormat = (AiffFileFormat)getAudioFileFormat(fileType, stream);
// we must know the total data length to calculate the file length
if( stream.getFrameLength() == AudioSystem.NOT_SPECIFIED ) {
throw new IOException("stream length not specified");
}
int bytesWritten = writeAiffFile(stream, aiffFileFormat, out);
return bytesWritten;
}
/**
* Returns AudioFileFormat from URL.
*/
@Override
public AudioFileFormat getAudioFileFormat(URL url) throws UnsupportedAudioFileException, IOException
{
if (TDebug.TraceAudioFileReader) {TDebug.out("MpegAudioFileReader.getAudioFileFormat(URL): begin"); }
long lFileLengthInBytes = AudioSystem.NOT_SPECIFIED;
URLConnection conn = url.openConnection();
// Tell shoucast server (if any) that SPI support shoutcast stream.
conn.setRequestProperty ("Icy-Metadata", "1");
InputStream inputStream = conn.getInputStream();
AudioFileFormat audioFileFormat = null;
try
{
audioFileFormat = getAudioFileFormat(inputStream, lFileLengthInBytes);
}
finally
{
inputStream.close();
}
if (TDebug.TraceAudioFileReader) {TDebug.out("MpegAudioFileReader.getAudioFileFormat(URL): end"); }
return audioFileFormat;
}
public int write(AudioInputStream stream, AudioFileFormat.Type fileType, OutputStream out) throws IOException {
//$$fb the following check must come first ! Otherwise
// the next frame length check may throw an IOException and
// interrupt iterating File Writers. (see bug 4351296)
// throws IllegalArgumentException if not supported
AiffFileFormat aiffFileFormat = (AiffFileFormat)getAudioFileFormat(fileType, stream);
// we must know the total data length to calculate the file length
if( stream.getFrameLength() == AudioSystem.NOT_SPECIFIED ) {
throw new IOException("stream length not specified");
}
int bytesWritten = writeAiffFile(stream, aiffFileFormat, out);
return bytesWritten;
}
@Override
public int write(AudioInputStream stream, AudioFileFormat.Type fileType, File out) throws IOException {
Objects.requireNonNull(stream);
Objects.requireNonNull(fileType);
Objects.requireNonNull(out);
// throws IllegalArgumentException if not supported
WaveFileFormat waveFileFormat = (WaveFileFormat)getAudioFileFormat(fileType, stream);
// first write the file without worrying about length fields
FileOutputStream fos = new FileOutputStream( out ); // throws IOException
BufferedOutputStream bos = new BufferedOutputStream( fos, bisBufferSize );
int bytesWritten = writeWaveFile(stream, waveFileFormat, bos );
bos.close();
// now, if length fields were not specified, calculate them,
// open as a random access file, write the appropriate fields,
// close again....
if( waveFileFormat.getByteLength()== AudioSystem.NOT_SPECIFIED ) {
int dataLength=bytesWritten-waveFileFormat.getHeaderSize();
int riffLength=dataLength + waveFileFormat.getHeaderSize() - 8;
RandomAccessFile raf=new RandomAccessFile(out, "rw");
// skip RIFF magic
raf.skipBytes(4);
raf.writeInt(big2little( riffLength ));
// skip WAVE magic, fmt_ magic, fmt_ length, fmt_ chunk, data magic
raf.skipBytes(4+4+4+WaveFileFormat.getFmtChunkSize(waveFileFormat.getWaveType())+4);
raf.writeInt(big2little( dataLength ));
// that's all
raf.close();
}
return bytesWritten;
}
public final long getMicrosecondPosition() {
long microseconds = getLongFramePosition();
if (microseconds != AudioSystem.NOT_SPECIFIED) {
microseconds = Toolkit.frames2micros(getFormat(), microseconds);
}
return microseconds;
}
public int getMaxLines(Line.Info info) {
if (info.getLineClass() == SourceDataLine.class)
return AudioSystem.NOT_SPECIFIED;
if (info.getLineClass() == Clip.class)
return AudioSystem.NOT_SPECIFIED;
return 0;
}
public static AudioFloatInputStream getInputStream(AudioFormat format,
byte[] buffer, int offset, int len) {
AudioFloatConverter converter = AudioFloatConverter
.getConverter(format);
if (converter != null)
return new BytaArrayAudioFloatInputStream(converter, buffer,
offset, len);
InputStream stream = new ByteArrayInputStream(buffer, offset, len);
long aLen = format.getFrameSize() == AudioSystem.NOT_SPECIFIED
? AudioSystem.NOT_SPECIFIED : len / format.getFrameSize();
AudioInputStream astream = new AudioInputStream(stream, format, aLen);
return getInputStream(astream);
}
public float getLevel() {
return AudioSystem.NOT_SPECIFIED;
}
@Override
public int write(AudioInputStream stream, AudioFileFormat.Type fileType, File out) throws IOException {
Objects.requireNonNull(stream);
Objects.requireNonNull(fileType);
Objects.requireNonNull(out);
// throws IllegalArgumentException if not supported
AiffFileFormat aiffFileFormat = (AiffFileFormat)getAudioFileFormat(fileType, stream);
// first write the file without worrying about length fields
final int bytesWritten;
try (final FileOutputStream fos = new FileOutputStream(out);
final BufferedOutputStream bos = new BufferedOutputStream(fos)) {
bytesWritten = writeAiffFile(stream, aiffFileFormat, bos);
}
// now, if length fields were not specified, calculate them,
// open as a random access file, write the appropriate fields,
// close again....
if( aiffFileFormat.getByteLength()== AudioSystem.NOT_SPECIFIED ) {
// $$kk: 10.22.99: jan: please either implement this or throw an exception!
// $$fb: 2001-07-13: done. Fixes Bug 4479981
int channels = aiffFileFormat.getFormat().getChannels();
int sampleSize = aiffFileFormat.getFormat().getSampleSizeInBits();
int ssndBlockSize = channels * ((sampleSize + 7) / 8);
int aiffLength=bytesWritten;
int ssndChunkSize=aiffLength-aiffFileFormat.getHeaderSize()+16;
long dataSize=ssndChunkSize-16;
//TODO possibly incorrect round
int numFrames = (int) (dataSize / ssndBlockSize);
try (final RandomAccessFile raf = new RandomAccessFile(out, "rw")) {
// skip FORM magic
raf.skipBytes(4);
raf.writeInt(aiffLength - 8);
// skip aiff2 magic, fver chunk, comm magic, comm size, channel count,
raf.skipBytes(4 + aiffFileFormat.getFverChunkSize() + 4 + 4 + 2);
// write frame count
raf.writeInt(numFrames);
// skip sample size, samplerate, SSND magic
raf.skipBytes(2 + 10 + 4);
raf.writeInt(ssndChunkSize - 8);
// that's all
}
}
return bytesWritten;
}
AlawCodecStream(AudioInputStream stream, AudioFormat outputFormat) {
super(stream, outputFormat, -1);
AudioFormat inputFormat = stream.getFormat();
// throw an IllegalArgumentException if not ok
if ( ! (isConversionSupported(outputFormat, inputFormat)) ) {
throw new IllegalArgumentException("Unsupported conversion: " + inputFormat.toString() + " to " + outputFormat.toString());
}
//$$fb 2002-07-18: fix for 4714846: JavaSound ULAW (8-bit) encoder erroneously depends on endian-ness
boolean PCMIsBigEndian;
// determine whether we are encoding or decoding
if (AudioFormat.Encoding.ALAW.equals(inputFormat.getEncoding())) {
encode = false;
encodeFormat = inputFormat;
decodeFormat = outputFormat;
PCMIsBigEndian = outputFormat.isBigEndian();
} else {
encode = true;
encodeFormat = outputFormat;
decodeFormat = inputFormat;
PCMIsBigEndian = inputFormat.isBigEndian();
tempBuffer = new byte[tempBufferSize];
}
if (PCMIsBigEndian) {
tabByte1 = ALAW_TABH;
tabByte2 = ALAW_TABL;
highByte = 0;
lowByte = 1;
} else {
tabByte1 = ALAW_TABL;
tabByte2 = ALAW_TABH;
highByte = 1;
lowByte = 0;
}
// set the AudioInputStream length in frames if we know it
if (stream instanceof AudioInputStream) {
frameLength = ((AudioInputStream)stream).getFrameLength();
}
// set framePos to zero
framePos = 0;
frameSize = inputFormat.getFrameSize();
if( frameSize==AudioSystem.NOT_SPECIFIED ) {
frameSize=1;
}
}
/**
* Constructs a new AbstractLine.
*/
protected AbstractDataLine(DataLine.Info info, AbstractMixer mixer, Control[] controls) {
this(info, mixer, controls, null, AudioSystem.NOT_SPECIFIED);
}
PCMtoPCMCodecStream(AudioInputStream stream, AudioFormat outputFormat) {
super(stream, outputFormat, -1);
int sampleSizeInBits = 0;
AudioFormat.Encoding inputEncoding = null;
AudioFormat.Encoding outputEncoding = null;
boolean inputIsBigEndian;
boolean outputIsBigEndian;
AudioFormat inputFormat = stream.getFormat();
// throw an IllegalArgumentException if not ok
if ( ! (isConversionSupported(inputFormat, outputFormat)) ) {
throw new IllegalArgumentException("Unsupported conversion: " + inputFormat.toString() + " to " + outputFormat.toString());
}
inputEncoding = inputFormat.getEncoding();
outputEncoding = outputFormat.getEncoding();
inputIsBigEndian = inputFormat.isBigEndian();
outputIsBigEndian = outputFormat.isBigEndian();
sampleSizeInBits = inputFormat.getSampleSizeInBits();
sampleSizeInBytes = sampleSizeInBits/8;
// determine conversion to perform
if( sampleSizeInBits==8 ) {
if( AudioFormat.Encoding.PCM_UNSIGNED.equals(inputEncoding) &&
AudioFormat.Encoding.PCM_SIGNED.equals(outputEncoding) ) {
conversionType = PCM_SWITCH_SIGNED_8BIT;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_SWITCH_SIGNED_8BIT");
} else if( AudioFormat.Encoding.PCM_SIGNED.equals(inputEncoding) &&
AudioFormat.Encoding.PCM_UNSIGNED.equals(outputEncoding) ) {
conversionType = PCM_SWITCH_SIGNED_8BIT;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_SWITCH_SIGNED_8BIT");
}
} else {
if( inputEncoding.equals(outputEncoding) && (inputIsBigEndian != outputIsBigEndian) ) {
conversionType = PCM_SWITCH_ENDIAN;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_SWITCH_ENDIAN");
} else if (AudioFormat.Encoding.PCM_UNSIGNED.equals(inputEncoding) && !inputIsBigEndian &&
AudioFormat.Encoding.PCM_SIGNED.equals(outputEncoding) && outputIsBigEndian) {
conversionType = PCM_UNSIGNED_LE2SIGNED_BE;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_UNSIGNED_LE2SIGNED_BE");
} else if (AudioFormat.Encoding.PCM_SIGNED.equals(inputEncoding) && !inputIsBigEndian &&
AudioFormat.Encoding.PCM_UNSIGNED.equals(outputEncoding) && outputIsBigEndian) {
conversionType = PCM_SIGNED_LE2UNSIGNED_BE;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_SIGNED_LE2UNSIGNED_BE");
} else if (AudioFormat.Encoding.PCM_UNSIGNED.equals(inputEncoding) && inputIsBigEndian &&
AudioFormat.Encoding.PCM_SIGNED.equals(outputEncoding) && !outputIsBigEndian) {
conversionType = PCM_UNSIGNED_BE2SIGNED_LE;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_UNSIGNED_BE2SIGNED_LE");
} else if (AudioFormat.Encoding.PCM_SIGNED.equals(inputEncoding) && inputIsBigEndian &&
AudioFormat.Encoding.PCM_UNSIGNED.equals(outputEncoding) && !outputIsBigEndian) {
conversionType = PCM_SIGNED_BE2UNSIGNED_LE;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_SIGNED_BE2UNSIGNED_LE");
}
}
// set the audio stream length in frames if we know it
frameSize = inputFormat.getFrameSize();
if( frameSize == AudioSystem.NOT_SPECIFIED ) {
frameSize=1;
}
if( stream instanceof AudioInputStream ) {
frameLength = stream.getFrameLength();
} else {
frameLength = AudioSystem.NOT_SPECIFIED;
}
// set framePos to zero
framePos = 0;
}
public float getLevel() {
return AudioSystem.NOT_SPECIFIED;
}
PCMtoPCMCodecStream(AudioInputStream stream, AudioFormat outputFormat) {
super(stream, outputFormat, -1);
int sampleSizeInBits = 0;
AudioFormat.Encoding inputEncoding = null;
AudioFormat.Encoding outputEncoding = null;
boolean inputIsBigEndian;
boolean outputIsBigEndian;
AudioFormat inputFormat = stream.getFormat();
// throw an IllegalArgumentException if not ok
if ( ! (isConversionSupported(inputFormat, outputFormat)) ) {
throw new IllegalArgumentException("Unsupported conversion: " + inputFormat.toString() + " to " + outputFormat.toString());
}
inputEncoding = inputFormat.getEncoding();
outputEncoding = outputFormat.getEncoding();
inputIsBigEndian = inputFormat.isBigEndian();
outputIsBigEndian = outputFormat.isBigEndian();
sampleSizeInBits = inputFormat.getSampleSizeInBits();
sampleSizeInBytes = sampleSizeInBits/8;
// determine conversion to perform
if( sampleSizeInBits==8 ) {
if( AudioFormat.Encoding.PCM_UNSIGNED.equals(inputEncoding) &&
AudioFormat.Encoding.PCM_SIGNED.equals(outputEncoding) ) {
conversionType = PCM_SWITCH_SIGNED_8BIT;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_SWITCH_SIGNED_8BIT");
} else if( AudioFormat.Encoding.PCM_SIGNED.equals(inputEncoding) &&
AudioFormat.Encoding.PCM_UNSIGNED.equals(outputEncoding) ) {
conversionType = PCM_SWITCH_SIGNED_8BIT;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_SWITCH_SIGNED_8BIT");
}
} else {
if( inputEncoding.equals(outputEncoding) && (inputIsBigEndian != outputIsBigEndian) ) {
conversionType = PCM_SWITCH_ENDIAN;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_SWITCH_ENDIAN");
} else if (AudioFormat.Encoding.PCM_UNSIGNED.equals(inputEncoding) && !inputIsBigEndian &&
AudioFormat.Encoding.PCM_SIGNED.equals(outputEncoding) && outputIsBigEndian) {
conversionType = PCM_UNSIGNED_LE2SIGNED_BE;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_UNSIGNED_LE2SIGNED_BE");
} else if (AudioFormat.Encoding.PCM_SIGNED.equals(inputEncoding) && !inputIsBigEndian &&
AudioFormat.Encoding.PCM_UNSIGNED.equals(outputEncoding) && outputIsBigEndian) {
conversionType = PCM_SIGNED_LE2UNSIGNED_BE;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_SIGNED_LE2UNSIGNED_BE");
} else if (AudioFormat.Encoding.PCM_UNSIGNED.equals(inputEncoding) && inputIsBigEndian &&
AudioFormat.Encoding.PCM_SIGNED.equals(outputEncoding) && !outputIsBigEndian) {
conversionType = PCM_UNSIGNED_BE2SIGNED_LE;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_UNSIGNED_BE2SIGNED_LE");
} else if (AudioFormat.Encoding.PCM_SIGNED.equals(inputEncoding) && inputIsBigEndian &&
AudioFormat.Encoding.PCM_UNSIGNED.equals(outputEncoding) && !outputIsBigEndian) {
conversionType = PCM_SIGNED_BE2UNSIGNED_LE;
if(Printer.debug) Printer.debug("PCMtoPCMCodecStream: conversionType = PCM_SIGNED_BE2UNSIGNED_LE");
}
}
// set the audio stream length in frames if we know it
frameSize = inputFormat.getFrameSize();
if( frameSize == AudioSystem.NOT_SPECIFIED ) {
frameSize=1;
}
if( stream instanceof AudioInputStream ) {
frameLength = stream.getFrameLength();
} else {
frameLength = AudioSystem.NOT_SPECIFIED;
}
// set framePos to zero
framePos = 0;
}
UlawCodecStream(AudioInputStream stream, AudioFormat outputFormat) {
super(stream, outputFormat, AudioSystem.NOT_SPECIFIED);
AudioFormat inputFormat = stream.getFormat();
// throw an IllegalArgumentException if not ok
if (!(isConversionSupported(outputFormat, inputFormat))) {
throw new IllegalArgumentException("Unsupported conversion: " + inputFormat.toString() + " to " + outputFormat.toString());
}
//$$fb 2002-07-18: fix for 4714846: JavaSound ULAW (8-bit) encoder erroneously depends on endian-ness
boolean PCMIsBigEndian;
// determine whether we are encoding or decoding
if (AudioFormat.Encoding.ULAW.equals(inputFormat.getEncoding())) {
encode = false;
encodeFormat = inputFormat;
decodeFormat = outputFormat;
PCMIsBigEndian = outputFormat.isBigEndian();
} else {
encode = true;
encodeFormat = outputFormat;
decodeFormat = inputFormat;
PCMIsBigEndian = inputFormat.isBigEndian();
tempBuffer = new byte[tempBufferSize];
}
// setup tables according to byte order
if (PCMIsBigEndian) {
tabByte1 = ULAW_TABH;
tabByte2 = ULAW_TABL;
highByte = 0;
lowByte = 1;
} else {
tabByte1 = ULAW_TABL;
tabByte2 = ULAW_TABH;
highByte = 1;
lowByte = 0;
}
// set the AudioInputStream length in frames if we know it
if (stream instanceof AudioInputStream) {
frameLength = ((AudioInputStream)stream).getFrameLength();
}
// set framePos to zero
framePos = 0;
frameSize = inputFormat.getFrameSize();
if (frameSize == AudioSystem.NOT_SPECIFIED) {
frameSize = 1;
}
}
/**
* Constructs a new AbstractLine.
*/
protected AbstractDataLine(DataLine.Info info, AbstractMixer mixer, Control[] controls) {
this(info, mixer, controls, null, AudioSystem.NOT_SPECIFIED);
}
/**
* Return the frame position in a long value
* This implementation returns AudioSystem.NOT_SPECIFIED.
*/
public long getLongFramePosition() {
return AudioSystem.NOT_SPECIFIED;
}
/**
* Return the frame position in a long value
* This implementation returns AudioSystem.NOT_SPECIFIED.
*/
public long getLongFramePosition() {
return AudioSystem.NOT_SPECIFIED;
}