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); }