/** Signals that a PooledThread has started. Creates the Thread's line and buffer. */
protected void threadStarted() {
// wait for the SoundManager constructor to finish
synchronized (this) {
try {
wait();
} catch (InterruptedException ex) {
}
}
// use a short, 100ms (1/10th sec) buffer for filters that
// change in real-time
int bufferSize =
playbackFormat.getFrameSize() * Math.round(playbackFormat.getSampleRate() / 10);
// create, open, and start the line
SourceDataLine line;
DataLine.Info lineInfo = new DataLine.Info(SourceDataLine.class, playbackFormat);
try {
line = (SourceDataLine) AudioSystem.getLine(lineInfo);
line.open(playbackFormat, bufferSize);
} catch (LineUnavailableException ex) {
// the line is unavailable - signal to end this thread
Thread.currentThread().interrupt();
return;
}
line.start();
// create the buffer
byte[] buffer = new byte[bufferSize];
// set this thread's locals
localLine.set(line);
localBuffer.set(buffer);
}
public void play(InputStream source) {
int bufferSize = format.getFrameSize() * Math.round(format.getSampleRate() / 10);
byte[] buffer = new byte[bufferSize];
SourceDataLine line;
try {
DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
line = (SourceDataLine) AudioSystem.getLine(info);
line.open(format, bufferSize);
} catch (LineUnavailableException e) {
e.printStackTrace();
return;
}
line.start();
try {
int numBytesRead = 0;
while (numBytesRead != -1) {
numBytesRead = source.read(buffer, 0, buffer.length);
if (numBytesRead != -1) line.write(buffer, 0, numBytesRead);
}
} catch (IOException e) {
e.printStackTrace();
}
line.drain();
line.close();
}
public static Clip loadClip(URL url) {
Clip clip = null;
String fnm = "" + url;
try {
AudioInputStream stream = AudioSystem.getAudioInputStream(url);
AudioFormat format = stream.getFormat();
if ((format.getEncoding() == AudioFormat.Encoding.ULAW)
|| (format.getEncoding() == AudioFormat.Encoding.ALAW)) {
AudioFormat newFormat =
new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
format.getSampleRate(),
format.getSampleSizeInBits() * 2,
format.getChannels(),
format.getFrameSize() * 2,
format.getFrameRate(),
true); // big endian
stream = AudioSystem.getAudioInputStream(newFormat, stream);
// System.out.println("Converted Audio format: " + newFormat);
format = newFormat;
}
DataLine.Info info = new DataLine.Info(Clip.class, format);
// make sure sound system supports data line
if (!AudioSystem.isLineSupported(info)) {
System.out.println("Unsupported Clip File: " + fnm);
return null;
}
// get clip line resource
clip = (Clip) AudioSystem.getLine(info);
clip.open(stream); // open the sound file as a clip
stream.close(); // we're done with the input stream
// duration (in secs) of the clip
double duration = clip.getMicrosecondLength() / 1000000.0; // new
if (duration <= 1.0) {
System.out.println("WARNING. Duration <= 1 sec : " + duration + " secs");
System.out.println(
" The clip in " + fnm + " may not play in J2SE 1.5 -- make it longer");
}
// else
// System.out.println(fnm + ": Duration: " + duration + " secs");
} // end of try block
catch (UnsupportedAudioFileException audioException) {
System.out.println("Unsupported audio file: " + fnm);
} catch (LineUnavailableException noLineException) {
System.out.println("No audio line available for : " + fnm);
} catch (IOException ioException) {
System.out.println("Could not read: " + fnm);
} catch (Exception e) {
System.out.println("Problem with " + fnm);
}
return clip;
} // end of loadClip()
public byte[] getSamples(AudioInputStream stream) {
int length = (int) (stream.getFrameLength() * format.getFrameSize());
byte[] samples = new byte[length];
DataInputStream in = new DataInputStream(stream);
try {
in.readFully(samples);
} catch (IOException e) {
e.printStackTrace();
}
return samples;
}
// 取得音频样本
private byte[] getAudioSamples(AudioInputStream MusicStream, AudioFormat format) {
int AudioSampleLengh = (int) (MusicStream.getFrameLength() * format.getFrameSize());
byte aAudioSamples[] = new byte[AudioSampleLengh];
DataInputStream dataInputStream = new DataInputStream(MusicStream);
try {
dataInputStream.readFully(aAudioSamples);
} catch (Exception e) {
e.printStackTrace();
}
return aAudioSamples;
}
/**
* Constructs an audio input stream that reads its data from the target data line indicated. The
* format of the stream is the same as that of the target data line, and the length is
* AudioSystem#NOT_SPECIFIED.
*
* @param line the target data line from which this stream obtains its data.
* @see AudioSystem#NOT_SPECIFIED
*/
public AudioInputStream(TargetDataLine line) {
TargetDataLineInputStream tstream = new TargetDataLineInputStream(line);
format = line.getFormat();
frameLength = AudioSystem.NOT_SPECIFIED;
frameSize = format.getFrameSize();
if (frameSize == AudioSystem.NOT_SPECIFIED || frameSize <= 0) {
frameSize = 1;
}
this.stream = tstream;
framePos = 0;
markpos = 0;
}
private void soundAbspielen(File sound) {
if (!läuft) return;
try {
audioInputStream = AudioSystem.getAudioInputStream(sound);
af = audioInputStream.getFormat();
size = (int) (af.getFrameSize() * audioInputStream.getFrameLength());
audio = new byte[size];
info = new DataLine.Info(Clip.class, af, size);
audioInputStream.read(audio, 0, size);
clip = (Clip) AudioSystem.getLine(info);
clip.open(af, audio, 0, size);
clip.start();
} catch (Exception e) {
e.printStackTrace();
}
}
public boolean load(File file) {
this.file = file;
if (file != null && file.isFile()) {
try {
errStr = null;
audioInputStream = AudioSystem.getAudioInputStream(file);
fileName = file.getName();
format = audioInputStream.getFormat();
} catch (Exception ex) {
reportStatus(ex.toString());
return false;
}
} else {
reportStatus("Audio file required.");
return false;
}
numChannels = format.getChannels();
sampleRate = (double) format.getSampleRate();
sampleBitSize = format.getSampleSizeInBits();
long frameLength = audioInputStream.getFrameLength();
long milliseconds = (long) ((frameLength * 1000) / audioInputStream.getFormat().getFrameRate());
double audioFileDuration = milliseconds / 1000.0;
if (audioFileDuration > MAX_AUDIO_DURATION) duration = MAX_AUDIO_DURATION;
else duration = audioFileDuration;
frameLength = (int) Math.floor((duration / audioFileDuration) * (double) frameLength);
try {
audioBytes = new byte[(int) frameLength * format.getFrameSize()];
audioInputStream.read(audioBytes);
} catch (Exception ex) {
reportStatus(ex.toString());
return false;
}
getAudioData();
return true;
}
/**
* Constructs an audio input stream that has the requested format and length in sample frames,
* using audio data from the specified input stream.
*
* @param stream the stream on which this <code>AudioInputStream</code> object is based
* @param format the format of this stream's audio data
* @param length the length in sample frames of the data in this stream
*/
public AudioInputStream(InputStream stream, AudioFormat format, long length) {
super();
this.format = format;
this.frameLength = length;
this.frameSize = format.getFrameSize();
// any frameSize that is not well-defined will
// cause that this stream will be read in bytes
if (this.frameSize == AudioSystem.NOT_SPECIFIED || frameSize <= 0) {
this.frameSize = 1;
}
this.stream = stream;
framePos = 0;
markpos = 0;
}
// 播放au,aiff,wav音乐流, 这个函数基本完全为帖子上的代码
private synchronized void play() {
ByteArrayInputStream aMusicInputStream;
AudioFormat format;
AudioInputStream musicInputStream;
byte[] audioSamples;
SourceDataLine line;
try {
File MusicFile = new File(m_filename);
musicInputStream = AudioSystem.getAudioInputStream(MusicFile); // 取得文件的音频输入流
format = musicInputStream.getFormat(); // 取得音频输入流的格式
audioSamples = getAudioSamples(musicInputStream, format); // 取得音频样本
aMusicInputStream = new ByteArrayInputStream(audioSamples);
int bufferSize = format.getFrameSize() * Math.round(format.getSampleRate() / 10);
byte[] buffer = new byte[bufferSize];
try {
DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
line = (SourceDataLine) AudioSystem.getLine(info);
line.open(format, bufferSize);
} catch (LineUnavailableException e) {
e.printStackTrace();
return;
}
if (!line.isRunning()) {
line.start();
}
int numBytesRead = 0;
while (numBytesRead != -1 && !m_stopped) {
numBytesRead = aMusicInputStream.read(buffer, 0, buffer.length);
if (numBytesRead != -1) {
line.write(buffer, 0, numBytesRead);
}
}
line.drain();
line.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
float[] testarray = new float[1024];
for (int i = 0; i < 1024; i++) {
double ii = i / 1024.0;
ii = ii * ii;
testarray[i] = (float) Math.sin(10 * ii * 2 * Math.PI);
testarray[i] += (float) Math.sin(1.731 + 2 * ii * 2 * Math.PI);
testarray[i] += (float) Math.sin(0.231 + 6.3 * ii * 2 * Math.PI);
testarray[i] *= 0.3;
}
// Check conversion using PCM_FLOAT
for (int big = 0; big < 2; big += 1)
for (int bits = 32; bits <= 64; bits += 32) {
AudioFormat frm =
new AudioFormat(
AudioFloatConverter.PCM_FLOAT, 44100, bits, 1, bits / 8, 44100, big == 1);
byte[] buff = new byte[testarray.length * frm.getFrameSize()];
float[] testarray2 = new float[testarray.length];
AudioFloatConverter conv = AudioFloatConverter.getConverter(frm);
conv.toByteArray(testarray, buff);
conv.toFloatArray(buff, testarray2);
for (int i = 0; i < testarray2.length; i++) {
if (Math.abs(testarray[i] - testarray2[i]) > 0.05)
throw new RuntimeException(
"Conversion failed for " + frm + " , arrays not equal enough!\n");
}
}
// Check conversion from float2byte and byte2float.
for (int big = 0; big < 2; big += 1)
for (int signed = 0; signed < 2; signed += 1)
for (int bits = 6; bits <= 40; bits += 2) {
AudioFormat frm = new AudioFormat(44100, bits, 1, signed == 1, big == 1);
byte[] buff = new byte[testarray.length * frm.getFrameSize()];
float[] testarray2 = new float[testarray.length];
AudioFloatConverter conv = AudioFloatConverter.getConverter(frm);
conv.toByteArray(testarray, buff);
conv.toFloatArray(buff, testarray2);
for (int i = 0; i < testarray2.length; i++) {
if (Math.abs(testarray[i] - testarray2[i]) > 0.05)
throw new RuntimeException(
"Conversion failed for " + frm + " , arrays not equal enough!\n");
}
}
// Check big/little
for (int big = 0; big < 2; big += 1)
for (int signed = 0; signed < 2; signed += 1)
for (int bits = 6; bits <= 40; bits += 2) {
AudioFormat frm = new AudioFormat(44100, bits, 1, signed == 1, big == 1);
byte[] buff = new byte[testarray.length * frm.getFrameSize()];
AudioFloatConverter conv = AudioFloatConverter.getConverter(frm);
conv.toByteArray(testarray, buff);
byte[] buff2 = new byte[testarray.length * frm.getFrameSize()];
int fs = frm.getFrameSize();
for (int i = 0; i < buff2.length; i += fs) {
for (int j = 0; j < fs; j++) {
buff2[i + (fs - j - 1)] = buff[i + j];
}
}
float[] testarray2 = new float[testarray.length];
AudioFormat frm2 = new AudioFormat(44100, bits, 1, signed == 1, big == 0);
AudioFloatConverter.getConverter(frm2).toFloatArray(buff2, testarray2);
for (int i = 0; i < testarray2.length; i++) {
if (Math.abs(testarray[i] - testarray2[i]) > 0.05) {
throw new RuntimeException(
"Conversion failed for " + frm + " to " + frm2 + " , arrays not equal enough!\n");
}
}
}
// Check signed/unsigned
for (int big = 0; big < 2; big += 1)
for (int signed = 0; signed < 2; signed += 1)
for (int bits = 6; bits <= 40; bits += 2) {
AudioFormat frm = new AudioFormat(44100, bits, 1, signed == 1, big == 1);
byte[] b = new byte[testarray.length * frm.getFrameSize()];
AudioFloatConverter conv = AudioFloatConverter.getConverter(frm);
conv.toByteArray(testarray, b);
int fs = frm.getFrameSize();
if (big == 1) {
for (int i = 0; i < b.length; i += fs)
b[i] = (b[i] >= 0) ? (byte) (0x80 | b[i]) : (byte) (0x7F & b[i]);
} else {
for (int i = (0 + fs - 1); i < b.length; i += fs)
b[i] = (b[i] >= 0) ? (byte) (0x80 | b[i]) : (byte) (0x7F & b[i]);
}
float[] testarray2 = new float[testarray.length];
AudioFormat frm2 = new AudioFormat(44100, bits, 1, signed == 0, big == 1);
AudioFloatConverter.getConverter(frm2).toFloatArray(b, testarray2);
for (int i = 0; i < testarray2.length; i++) {
if (Math.abs(testarray[i] - testarray2[i]) > 0.05) {
throw new RuntimeException(
"Conversion failed for " + frm + " to " + frm2 + " , arrays not equal enough!\n");
}
}
}
// Check if conversion 32->24, 24->16, 16->8 result in same float data
AudioFormat frm = new AudioFormat(44100, 40, 1, true, true);
byte[] b = new byte[testarray.length * frm.getFrameSize()];
AudioFloatConverter.getConverter(frm).toByteArray(testarray, b);
for (int bits = 6; bits <= 40; bits += 2) {
AudioFormat frm2 = new AudioFormat(44100, bits, 1, true, true);
byte[] b2 = new byte[testarray.length * frm2.getFrameSize()];
int fs1 = frm.getFrameSize();
int fs2 = frm2.getFrameSize();
int ii = 0;
for (int i = 0; i < b.length; i += fs1) for (int j = 0; j < fs2; j++) b2[ii++] = b[i + j];
float[] testarray2 = new float[testarray.length];
AudioFloatConverter.getConverter(frm2).toFloatArray(b2, testarray2);
for (int i = 0; i < testarray2.length; i++) {
if (Math.abs(testarray[i] - testarray2[i]) > 0.05) {
throw new RuntimeException(
"Conversion failed for " + frm + " to " + frm2 + " , arrays not equal enough!\n");
}
}
}
}
