#include "audiosignal.h"
-#include <KLocale>
+#include <KDebug>
-#include <QVBoxLayout>
-#include <QLabel>
-#include <QAction>
#include <QPainter>
-#include <QDebug>
-#include <QList>
+#include <QMenu>
+#include <QTime>
#include <math.h>
-AudioSignal::AudioSignal(QWidget *parent): QWidget(parent)
+AudioSignal::AudioSignal(QWidget *parent): AbstractAudioScopeWidget(false, parent)
{
- //QVBoxLayout *vbox=new QVBoxLayout(this);
- //label=new QLabel();
- //vbox->addWidget(label);
setMinimumHeight(10);
setMinimumWidth(10);
dbscale << 0 << -1 << -2 << -3 << -4 << -5 << -6 << -8 << -10 << -20 << -40 ;
- setContextMenuPolicy(Qt::ActionsContextMenu);
- m_aMonitoringEnabled = new QAction(i18n("Monitor audio signal"), this);
- m_aMonitoringEnabled->setCheckable(true);
- m_aMonitoringEnabled->setChecked(true);
- connect(m_aMonitoringEnabled, SIGNAL(toggled(bool)), this, SLOT(slotSwitchAudioMonitoring(bool)));
+ m_menu->removeAction(m_aRealtime);
connect(&m_timer,SIGNAL(timeout()),this,SLOT(slotNoAudioTimeout()));
- addAction(m_aMonitoringEnabled);
+ init();
}
AudioSignal::~AudioSignal()
{
- delete m_aMonitoringEnabled;
}
-bool AudioSignal::monitoringEnabled() const
-{
- return m_aMonitoringEnabled->isChecked();
-}
-
-void AudioSignal::slotReceiveAudio(const QVector<int16_t>& data, int, int num_channels, int samples)
+QImage AudioSignal::renderAudioScope(uint, const QVector<int16_t> &audioFrame,
+ const int, const int num_channels, const int samples, const int)
{
+ QTime start = QTime::currentTime();
int num_samples = samples > 200 ? 200 : samples;
QByteArray channels;
- int num_oversample=0;
- for (int i = 0; i < num_channels; i++) {
+ for (int i = 0; i < num_channels; ++i) {
long val = 0;
- double over1=0.0;
- double over2=0.0;
for (int s = 0; s < num_samples; s ++) {
- int sample=abs(data[i+s*num_channels] / 128);
- val += sample;
- if (sample==128){
- num_oversample++;
- }else{
- num_oversample=0;
- }
- //if 3 samples over max => 1 peak over 0 db (0db=40.0)
- if (num_oversample>3){
- over1=41.0/42.0*127;
- }
- // 10 samples @max => show max signal
- if (num_oversample>10){
- over2=127;
- }
-
-
-
+ val += abs(audioFrame[i+s*num_channels] / 128);
}
- //max amplitude = 40/42, 3to10 oversamples=41, more then 10 oversamples=42
- if (over2>0.0){
- channels.append(over2);
- } else if (over1>0.0){
- channels.append(over1);
- }else
- channels.append(val / num_samples*40.0/42.0);
+ channels.append(val / num_samples);
}
- showAudio(channels);
- m_timer.start(1000);
-}
-
-void AudioSignal::slotNoAudioTimeout(){
- peeks.fill(0);
- showAudio(QByteArray(2,0));
- m_timer.stop();
-}
-void AudioSignal::showAudio(const QByteArray arr)
-{
- channels = arr;
if (peeks.count()!=channels.count()){
peeks=QByteArray(channels.count(),0);
peekage=QByteArray(channels.count(),0);
}
for (int chan=0;chan<peeks.count();chan++)
{
- peekage[chan]=peekage[chan]+1;
- if ( peeks.at(chan)<arr.at(chan) || peekage.at(chan)>50 )
+ peekage[chan] = peekage[chan]+1;
+ if ( peeks.at(chan)<channels.at(chan) || peekage.at(chan)>50 )
{
peekage[chan]=0;
- peeks[chan]=arr[chan];
+ peeks[chan]=channels[chan];
}
}
- update();
-}
-double AudioSignal::valueToPixel(double in)
-{
- //in=0 -> return 0 (null length from max), in=127/127 return 1 (max length )
- return 1.0- log10( in)/log10(1.0/127.0);
-}
-
-void AudioSignal::paintEvent(QPaintEvent* /*e*/)
-{
- if (!m_aMonitoringEnabled->isChecked()) {
- return;
- }
- QPainter p(this);
+ QImage image(m_scopeRect.size(), QImage::Format_ARGB32);
+ image.fill(Qt::transparent);
+ QPainter p(&image);
+ p.setPen(Qt::white);
+ p.setRenderHint(QPainter::TextAntialiasing, false);
+ p.setRenderHint(QPainter::Antialiasing, false);
+
int numchan = channels.size();
bool horiz=width() > height();
int dbsize=20;
bool showdb=width()>(dbsize+40);
//valpixel=1.0 for 127, 1.0+(1/40) for 1 short oversample, 1.0+(2/40) for longer oversample
- for (int i = 0; i < numchan; i++) {
+ for (int i = 0; i < numchan; ++i) {
//int maxx= (unsigned char)channels[i] * (horiz ? width() : height() ) / 127;
double valpixel=valueToPixel((double)(unsigned char)channels[i]/127.0);
- int maxx= height() * valpixel;
+ int maxx= height() * valpixel;
int xdelta= height() /42 ;
int _y2= (showdb?width()-dbsize:width () ) / numchan - 1 ;
int _y1= (showdb?width()-dbsize:width() ) *i/numchan;
if (horiz){
dbsize=9;
showdb=height()>(dbsize);
- maxx=width()*valpixel;
+ maxx=width()*valpixel;
xdelta = width() / 42;
_y2=( showdb?height()-dbsize:height() ) / numchan - 1 ;
_y1= (showdb?height()-dbsize:height() ) * i/numchan;
}
}
int xp=valueToPixel((double)peeks.at(i)/127.0)*(horiz?width():height())-2;
- p.fillRect(horiz?xp:_y1,horiz?_y1:height()-xdelta-xp,horiz?3:_y2,horiz?_y2:3,QBrush(Qt::black,Qt::SolidPattern));
+ p.fillRect(horiz?xp:_y1,horiz?_y1:height()-xdelta-xp,horiz?3:_y2,horiz?_y2:3,QBrush(Qt::gray,Qt::SolidPattern));
}
if (showdb){
}
}
p.end();
+ emit signalScopeRenderingFinished((uint) start.elapsed(), 1);
+ return image;
}
-void AudioSignal::slotSwitchAudioMonitoring(bool)
+QRect AudioSignal::scopeRect() { return QRect(0, 0, width(), height()); }
+
+QImage AudioSignal::renderHUD(uint) { return QImage(); }
+QImage AudioSignal::renderBackground(uint) { return QImage(); }
+
+void AudioSignal::slotReceiveAudio(QVector<int16_t> data, int, int num_channels, int samples)
+{
+
+ int num_samples = samples > 200 ? 200 : samples;
+
+ QByteArray channels;
+ int num_oversample=0;
+ for (int i = 0; i < num_channels; ++i) {
+ long val = 0;
+ double over1=0.0;
+ double over2=0.0;
+ for (int s = 0; s < num_samples; s ++) {
+ int sample=abs(data[i+s*num_channels] / 128);
+ val += sample;
+ if (sample==128){
+ num_oversample++;
+ }else{
+ num_oversample=0;
+ }
+ //if 3 samples over max => 1 peak over 0 db (0db=40.0)
+ if (num_oversample>3){
+ over1=41.0/42.0*127;
+ }
+ // 10 samples @max => show max signal
+ if (num_oversample>10){
+ over2=127;
+ }
+
+
+
+ }
+ //max amplitude = 40/42, 3to10 oversamples=41, more then 10 oversamples=42
+ if (over2>0.0){
+ channels.append(over2);
+ } else if (over1>0.0){
+ channels.append(over1);
+ }else
+ channels.append(val / num_samples*40.0/42.0);
+ }
+ showAudio(channels);
+ m_timer.start(1000);
+}
+
+void AudioSignal::slotNoAudioTimeout(){
+ peeks.fill(0);
+ showAudio(QByteArray(2,0));
+ m_timer.stop();
+}
+
+void AudioSignal::showAudio(const QByteArray &arr)
+{
+ channels = arr;
+ if (peeks.count()!=channels.count()){
+ peeks=QByteArray(channels.count(),0);
+ peekage=QByteArray(channels.count(),0);
+ }
+ for (int chan=0;chan<peeks.count();chan++)
+ {
+ peekage[chan]=peekage[chan]+1;
+ if ( peeks.at(chan)<arr.at(chan) || peekage.at(chan)>50 )
+ {
+ peekage[chan]=0;
+ peeks[chan]=arr[chan];
+ }
+ }
+ update();
+}
+
+double AudioSignal::valueToPixel(double in)
{
- emit updateAudioMonitoring();
+ //in=0 -> return 0 (null length from max), in=127/127 return 1 (max length )
+ return 1.0- log10( in)/log10(1.0/127.0);
}
#include "audiosignal.moc"
projects / kdenlive / blobdiff