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Diffstat (limited to 'noncore') (more/less context) (ignore whitespace changes)
-rw-r--r--noncore/multimedia/opierec/qtrec.cpp14
-rw-r--r--noncore/multimedia/opierec/waveform.cpp160
-rw-r--r--noncore/multimedia/opierec/waveform.h63
3 files changed, 230 insertions, 7 deletions
diff --git a/noncore/multimedia/opierec/qtrec.cpp b/noncore/multimedia/opierec/qtrec.cpp
index 2bf795f..1e36c96 100644
--- a/noncore/multimedia/opierec/qtrec.cpp
+++ b/noncore/multimedia/opierec/qtrec.cpp
@@ -93,8 +93,8 @@ int sd;
-#if defined(QT_QWS_EBX)
-#define DSPSTROUT "/dev/dsp"
-#define DSPSTRIN "/dev/dsp1"
-#define DSPSTRMIXEROUT "/dev/mixer"
-#define DSPSTRMIXERIN "/dev/mixer1"
-#else
+// #if defined(QT_QWS_EBX)
+// #define DSPSTROUT "/dev/dsp"
+// #define DSPSTRIN "/dev/dsp1"
+// #define DSPSTRMIXEROUT "/dev/mixer"
+// #define DSPSTRMIXERIN "/dev/mixer1"
+// #else
#define DSPSTROUT "/dev/dsp"
@@ -103,3 +103,3 @@ int sd;
#define DSPSTRMIXEROUT "/dev/mixer"
-#endif
+//#endif
diff --git a/noncore/multimedia/opierec/waveform.cpp b/noncore/multimedia/opierec/waveform.cpp
new file mode 100644
index 0000000..05be373
--- a/dev/null
+++ b/noncore/multimedia/opierec/waveform.cpp
@@ -0,0 +1,160 @@
+/**********************************************************************
+ ** Copyright (C) 2000-2002 Trolltech AS. All rights reserved.
+ **
+ ** This file is part of the Qtopia Environment.
+ **
+ ** This file may be distributed and/or modified under the terms of the
+ ** GNU General Public License version 2 as published by the Free Software
+ ** Foundation and appearing in the file LICENSE.GPL included in the
+ ** packaging of this file.
+ **
+ ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ **
+ ** See http://www.trolltech.com/gpl/ for GPL licensing information.
+ **
+ ** Contact info@trolltech.com if any conditions of this licensing are
+ ** not clear to you.
+ **
+ **********************************************************************/
+#include "waveform.h"
+
+#include <qlabel.h>
+#include <qpainter.h>
+
+
+Waveform::Waveform( QWidget *parent, const char *name, WFlags fl )
+ : QWidget( parent, name, fl )
+{
+ pixmap = 0;
+ windowSize = 100;
+ samplesPerPixel = 8000 / (5 * windowSize);
+ currentValue = 0;
+ numSamples = 0;
+ windowPosn = 0;
+ window = 0;
+}
+
+
+void Waveform::changeSettings( int frequency, int channels )
+{
+ makePixmap();
+// qWarning("change waveform %d, %d", frequency, channels);
+ samplesPerPixel = frequency * channels / (5 * windowSize);
+ qWarning("Waveform::changeSettings %d", samplesPerPixel);
+ if ( !samplesPerPixel )
+ samplesPerPixel = 1;
+ currentValue = 0;
+ numSamples = 0;
+ windowPosn = 0;
+ draw();
+}
+
+
+Waveform::~Waveform()
+{
+ if ( window )
+ delete[] window;
+ if ( pixmap )
+ delete pixmap;
+}
+
+
+void Waveform::reset()
+{
+ makePixmap();
+ currentValue = 0;
+ numSamples = 0;
+ windowPosn = 0;
+ draw();
+}
+
+
+void Waveform::newSamples( const short *buf, int len )
+{
+ // Cache the object values in local variables.
+ int samplesPerPixel = this->samplesPerPixel;
+ int currentValue = this->currentValue;
+ int numSamples = this->numSamples;
+ short *window = this->window;
+ int windowPosn = this->windowPosn;
+ int windowSize = this->windowSize;
+
+ // Average the incoming samples to scale them to the window.
+ while ( len > 0 ) {
+ currentValue += *buf++;
+ --len;
+ if ( ++numSamples >= samplesPerPixel ) {
+ window[windowPosn++] = (short)(currentValue / numSamples);
+ if ( windowPosn >= windowSize ) {
+ this->windowPosn = windowPosn;
+ draw();
+ windowPosn = 0;
+ }
+ numSamples = 0;
+ currentValue = 0;
+ }
+ }
+
+ // Copy the final state back to the object.
+//qWarning("%d, %d, %d", currentValue, numSamples, windowPosn);
+ this->currentValue = currentValue;
+ this->numSamples = numSamples;
+ this->windowPosn = windowPosn;
+}
+
+
+void Waveform::makePixmap()
+{
+ if ( !pixmap ) {
+ pixmap = new QPixmap( size() );
+ windowSize = pixmap->width();
+ window = new short [windowSize];
+ }
+}
+
+
+void Waveform::draw()
+{
+ pixmap->fill( Qt::black );
+ QPainter painter;
+ painter.begin( pixmap );
+ painter.setPen( Qt::green );
+
+ int middle = pixmap->height() / 2;
+ int mag;
+ short *window = this->window;
+ int posn;
+ int size = windowPosn;
+ for( posn = 0; posn < size; ++posn )
+ {
+ mag = (window[posn] * middle / 32768);
+ painter.drawLine(posn, middle - mag, posn, middle + mag);
+ }
+ if ( windowPosn < windowSize )
+ {
+ painter.drawLine(windowPosn, middle, windowSize, middle);
+ }
+
+ painter.end();
+
+ paintEvent( 0 );
+}
+
+
+void Waveform::paintEvent( QPaintEvent * )
+{
+ QPainter painter;
+ painter.begin( this );
+
+ if ( pixmap ) {
+ painter.drawPixmap( 0, 0, *pixmap );
+ } else {
+ painter.setPen( Qt::green );
+ QSize sz = size();
+ painter.drawLine(0, sz.height() / 2, sz.width(), sz.height() / 2);
+ }
+
+ painter.end();
+}
+
diff --git a/noncore/multimedia/opierec/waveform.h b/noncore/multimedia/opierec/waveform.h
new file mode 100644
index 0000000..b9a4c70
--- a/dev/null
+++ b/noncore/multimedia/opierec/waveform.h
@@ -0,0 +1,63 @@
+/**********************************************************************
+** Copyright (C) 2000-2002 Trolltech AS. All rights reserved.
+**
+** This file is part of the Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+#ifndef WAVEFORM_H
+#define WAVEFORM_H
+
+#include <qwidget.h>
+#include <qpixmap.h>
+
+
+class QLabel;
+
+
+class Waveform : public QWidget
+{
+public:
+ Waveform( QWidget *parent=0, const char *name=0, WFlags fl=0 );
+ ~Waveform();
+
+public:
+ void changeSettings( int frequency, int channels );
+ void reset();
+ void newSamples( const short *buf, int len );
+
+private:
+
+ void makePixmap();
+ void draw();
+
+protected:
+
+ void paintEvent( QPaintEvent *event );
+
+private:
+ int samplesPerPixel;
+ int currentValue;
+ int numSamples;
+ short *window;
+ int windowPosn;
+ int windowSize;
+ QPixmap *pixmap;
+
+};
+
+
+#endif
+