/**
* Inits AudioInputStream and AudioFileFormat from the data source.
*
* @throws BasicPlayerException
*/
protected void initAudioInputStream() throws BasicPlayerException {
try {
reset();
notifyEvent(BasicPlayerEvent.OPENING, getEncodedStreamPosition(), -1, m_dataSource);
if (m_dataSource instanceof URL) {
initAudioInputStream((URL) m_dataSource);
} else if (m_dataSource instanceof File) {
initAudioInputStream((File) m_dataSource);
} else if (m_dataSource instanceof InputStream) {
initAudioInputStream((InputStream) m_dataSource);
}
createLine();
// Notify listeners with AudioFileFormat properties.
Map properties = null;
if (m_audioFileFormat instanceof TAudioFileFormat) {
// Tritonus SPI compliant audio file format.
properties = ((TAudioFileFormat) m_audioFileFormat).properties();
// Clone the Map because it is not mutable.
properties = deepCopy(properties);
} else {
properties = new HashMap();
}
// Add JavaSound properties.
if (m_audioFileFormat.getByteLength() > 0) {
properties.put("audio.length.bytes", new Integer(m_audioFileFormat.getByteLength()));
}
if (m_audioFileFormat.getFrameLength() > 0) {
properties.put("audio.length.frames", new Integer(m_audioFileFormat.getFrameLength()));
}
if (m_audioFileFormat.getType() != null) {
properties.put("audio.type", (m_audioFileFormat.getType().toString()));
}
// Audio format.
AudioFormat audioFormat = m_audioFileFormat.getFormat();
if (audioFormat.getFrameRate() > 0) {
properties.put("audio.framerate.fps", new Float(audioFormat.getFrameRate()));
}
if (audioFormat.getFrameSize() > 0) {
properties.put("audio.framesize.bytes", new Integer(audioFormat.getFrameSize()));
}
if (audioFormat.getSampleRate() > 0) {
properties.put("audio.samplerate.hz", new Float(audioFormat.getSampleRate()));
}
if (audioFormat.getSampleSizeInBits() > 0) {
properties.put("audio.samplesize.bits", new Integer(audioFormat.getSampleSizeInBits()));
}
if (audioFormat.getChannels() > 0) {
properties.put("audio.channels", new Integer(audioFormat.getChannels()));
}
if (audioFormat instanceof TAudioFormat) {
// Tritonus SPI compliant audio format.
Map addproperties = ((TAudioFormat) audioFormat).properties();
properties.putAll(addproperties);
}
// Add SourceDataLine
properties.put("basicplayer.sourcedataline", m_line);
Iterator<BasicPlayerListener> it = laucher.getBasicPlayerListeners().iterator();
while (it.hasNext()) {
BasicPlayerListener bpl = it.next();
bpl.opened(m_dataSource, properties);
}
m_status = OPENED;
notifyEvent(BasicPlayerEvent.OPENED, getEncodedStreamPosition(), -1, null);
} catch (LineUnavailableException e) {
throw new BasicPlayerException(e);
} catch (UnsupportedAudioFileException e) {
throw new BasicPlayerException(e);
} catch (IOException e) {
throw new BasicPlayerException(e);
}
}
/**
* Main loop.
*
* <p>Player Status == STOPPED || SEEKING => End of Thread + Freeing Audio Ressources.<br>
* Player Status == PLAYING => Audio stream data sent to Audio line.<br>
* Player Status == PAUSED => Waiting for another status.
*/
public void run() {
log.info("Thread Running");
int nBytesRead = 1;
byte[] abData = new byte[EXTERNAL_BUFFER_SIZE];
int readIndex = 0; // 所有读进缓冲区的数量
int writeIndex = 0; // 所有写出数量
// Lock stream while playing.
synchronized (m_audioInputStream) {
boolean buffering = false;
// Main play/pause loop.
while ((nBytesRead != -1)
&& (m_status != STOPPED)
&& (m_status != SEEKING)
&& (m_status != UNKNOWN)) {
if (m_status == PLAYING) {
// Play.
try {
nBytesRead = m_audioInputStream.read(abData, 0, abData.length);
if (nBytesRead >= 0) {
byte[] pcm = new byte[nBytesRead];
System.arraycopy(abData, 0, pcm, 0, nBytesRead);
if (m_line.available() >= m_line.getBufferSize()) {
// buffering = true;
log.fine("缓冲区空虚 : " + m_line.available() + "/" + m_line.getBufferSize());
}
// if(m_line.available()==0){
// buffering=false;
// }
if (buffering == false) {
int nBytesWritten = m_line.write(abData, 0, nBytesRead);
// Compute position in bytes in encoded stream.
int nEncodedBytes = getEncodedStreamPosition();
// Notify listeners
Iterator<BasicPlayerListener> it = laucher.getBasicPlayerListeners().iterator();
while (it.hasNext()) {
BasicPlayerListener bpl = it.next();
if (m_audioInputStream instanceof PropertiesContainer) {
// Pass audio parameters such as instant bitrate, ...
Map properties = ((PropertiesContainer) m_audioInputStream).properties();
bpl.progress(nEncodedBytes, m_line.getMicrosecondPosition(), pcm, properties);
} else {
bpl.progress(nEncodedBytes, m_line.getMicrosecondPosition(), pcm, empty_map);
}
}
}
}
} catch (IOException e) {
log.log(Level.SEVERE, "Thread cannot run()", e);
m_status = STOPPED;
notifyEvent(BasicPlayerEvent.STOPPED, getEncodedStreamPosition(), -1, null);
}
// Nice CPU usage.
if (threadSleep > 0) {
try {
Thread.sleep(threadSleep);
} catch (InterruptedException e) {
log.log(Level.SEVERE, "Thread cannot sleep(" + threadSleep + ")", e);
}
}
} else {
synchronized (m_audioInputStream) {
try {
log.log(Level.INFO, "状态是不正在播放,要无限期的等待了.....");
m_audioInputStream.wait();
log.log(Level.INFO, "状态改过来了,等待被唤醒了.......");
} catch (InterruptedException ex) {
Logger.getLogger(BasicPlayer.class.getName()).log(Level.SEVERE, null, ex);
}
}
// Pause
// try {
// Thread.sleep(500);
// } catch (InterruptedException e) {
// log.log(Level.SEVERE, "Thread cannot sleep(500)", e);
// }
}
}
// Free audio resources.
if (m_line != null) {
m_line.drain();
m_line.stop();
m_line.close();
m_line = null;
}
// Notification of "End Of Media"
if (nBytesRead == -1) {
notifyEvent(BasicPlayerEvent.EOM, getEncodedStreamPosition(), -1, null);
}
// Close stream.
closeStream();
}
m_status = STOPPED;
notifyEvent(BasicPlayerEvent.STOPPED, getEncodedStreamPosition(), -1, null);
log.info("Thread completed");
}
/**
* Return registered listeners.
*
* @return
*/
public Collection getListeners() {
return laucher.getBasicPlayerListeners();
}