public void run() {
runInit(); // superclass
// Haupt-Variablen fuer den Prozess
int ch, i;
float f1, f2, maxGain;
double exp;
Param ampRef = new Param(1.0, Param.ABS_AMP); // transform-Referenz
SpectStreamSlot runInSlot;
SpectStreamSlot runOutSlot;
SpectStream runInStream = null;
SpectStream runOutStream;
SpectFrame runInFr = null;
SpectFrame runOutFr = null;
// Ziel-Frame Berechnung
int srcBands, fftSize, fullFFTsize, winSize, winHalf;
float[] fftBuf, convBuf1, convBuf2, win;
topLevel:
try {
// ------------------------------ Input-Slot ------------------------------
runInSlot = slots.elementAt(SLOT_INPUT);
if (runInSlot.getLinked() == null) {
runStop(); // threadDead = true -> folgendes for() wird uebersprungen
}
// diese while Schleife ist noetig, da beim initReader ein Pause eingelegt werden kann
// und die InterruptException ausgeloest wird; danach versuchen wir es erneut
for (boolean initDone = false; !initDone && !threadDead; ) {
try {
runInStream = runInSlot.getDescr(); // throws InterruptedException
initDone = true;
} catch (InterruptedException ignored) {
}
runCheckPause();
}
if (threadDead) break topLevel;
// ------------------------------ Output-Slot ------------------------------
runOutSlot = slots.elementAt(SLOT_OUTPUT);
runOutStream = new SpectStream(runInStream);
runOutSlot.initWriter(runOutStream);
// ------------------------------ Vorberechnungen ------------------------------
srcBands = runInStream.bands;
winSize = srcBands - 1;
winHalf = winSize >> 1;
win = Filter.createFullWindow(winSize, Filter.WIN_BLACKMAN); // pr.intg[ PR_WINDOW ]);
fftSize = srcBands - 1;
fullFFTsize = fftSize << 1;
fftBuf = new float[fullFFTsize + 2];
exp = (Param.transform(pr.para[PR_CONTRAST], Param.ABS_AMP, ampRef, null)).value - 1.0;
maxGain = (float) (Param.transform(pr.para[PR_MAXBOOST], Param.ABS_AMP, ampRef, null)).value;
// System.out.println( "srcBands "+srcBands+"; fftSize "+fftSize+"; exp "+exp+"; maxGain
// "+maxGain );
// ------------------------------ Hauptschleife ------------------------------
runSlotsReady();
mainLoop:
while (!threadDead) {
// ---------- Frame einlesen ----------
for (boolean readDone = false; (!readDone) && !threadDead; ) {
try {
runInFr = runInSlot.readFrame(); // throws InterruptedException
readDone = true;
runOutFr = runOutStream.allocFrame();
} catch (InterruptedException ignored) {
} catch (EOFException e) {
break mainLoop;
}
runCheckPause();
}
if (threadDead) break mainLoop;
// ---------- Process: Ziel-Frame berechnen ----------
for (ch = 0; ch < runOutStream.chanNum; ch++) {
convBuf1 = runInFr.data[ch];
convBuf2 = runOutFr.data[ch];
fftBuf[0] = 1.0f;
fftBuf[1] = 0.0f;
for (i = 2; i < fullFFTsize; ) {
f2 = (convBuf1[i - 2] + convBuf1[i + 2]);
if (f2 > 0.0f) {
f1 = (float) Math.min(maxGain, Math.pow(2.0f * convBuf1[i] / f2, exp));
} else {
if (convBuf1[i] == 0.0f) {
f1 = 1.0f;
} else {
f1 = maxGain;
}
}
// System.out.println( f1 );
fftBuf[i++] = f1;
fftBuf[i++] = 0.0f;
}
fftBuf[i++] = 1.0f;
fftBuf[i++] = 0.0f;
Fourier.realTransform(fftBuf, fullFFTsize, Fourier.INVERSE);
Util.mult(win, winHalf, fftBuf, 0, winHalf);
for (i = winHalf; i < fullFFTsize - winHalf; ) {
fftBuf[i++] = 0.0f;
}
Util.mult(win, 0, fftBuf, i, winHalf);
// if( (runOutStream.framesWritten < 2) && (ch == 0) ) Debug.view( fftBuf, "time" );
Fourier.realTransform(fftBuf, fullFFTsize, Fourier.FORWARD);
// if( (runOutStream.framesWritten < 2) && (ch == 0) ) Debug.view( fftBuf, "freq" );
for (i = 0; i <= fullFFTsize; ) {
convBuf2[i] = convBuf1[i] * fftBuf[i];
i++;
convBuf2[i] = convBuf1[i];
i++;
}
}
// calculation done
// if( (runOutStream.framesWritten < 2) ) {
// Debug.view( fftBuf, "flt "+runOutStream.framesWritten );
// Debug.view( runInFr.data[0], "in "+runOutStream.framesWritten );
// Debug.view( runOutFr.data[0], "out "+runOutStream.framesWritten );
// }
runInSlot.freeFrame(runInFr);
for (boolean writeDone = false; (!writeDone) && !threadDead; ) {
try { // Unterbrechung
runOutSlot.writeFrame(runOutFr); // throws InterruptedException
writeDone = true;
runFrameDone(runOutSlot, runOutFr);
runOutStream.freeFrame(runOutFr);
} catch (InterruptedException ignored) {
} // mainLoop wird eh gleich verlassen
runCheckPause();
}
} // end of main loop
runInStream.closeReader();
runOutStream.closeWriter();
} // break topLevel
catch (IOException e) {
runQuit(e);
return;
} catch (SlotAlreadyConnectedException e) {
runQuit(e);
return;
}
// catch( OutOfMemoryError e ) {
// abort( e );
// return;
// }
runQuit(null);
}
