bool EventFilter::eventFilter(QObject *watched, QEvent *event)
{
Q_UNUSED(watched);
AVPlayer *player = static_cast<AVPlayer*>(parent());
if (!player || !player->renderer() || !player->renderer()->widget())
return false;
if (qobject_cast<QWidget*>(watched) != player->renderer()->widget()) {
return false;
}
#ifndef QT_NO_DYNAMIC_CAST //dynamic_cast is defined as a macro to force a compile error
if (player->renderer() != dynamic_cast<VideoRenderer*>(watched)) {
// return false;
}
#endif
QEvent::Type type = event->type();
switch (type) {
case QEvent::KeyPress: {
QKeyEvent *key_event = static_cast<QKeyEvent*>(event);
int key = key_event->key();
Qt::KeyboardModifiers modifiers = key_event->modifiers();
switch (key) {
case Qt::Key_C: //capture
player->captureVideo();
break;
case Qt::Key_N: //check playing?
player->playNextFrame();
break;
case Qt::Key_P:
player->play();
break;
case Qt::Key_Q:
case Qt::Key_Escape:
qApp->quit();
break;
case Qt::Key_S:
player->stop(); //check playing?
break;
case Qt::Key_Space: //check playing?
qDebug("isPaused = %d", player->isPaused());
player->pause(!player->isPaused());
break;
case Qt::Key_F: { //TODO: move to gui
QWidget *w = qApp->activeWindow();
if (!w)
return false;
if (w->isFullScreen())
w->showNormal();
else
w->showFullScreen();
}
break;
case Qt::Key_Up: {
AudioOutput *ao = player->audio();
if (modifiers == Qt::ControlModifier) {
qreal s = player->speed();
if (s < 1.4)
s += 0.02;
else
s += 0.05;
if (qAbs<qreal>(s-1.0) <= 0.01)
s = 1.0;
player->setSpeed(s);
return true;
}
if (ao && ao->isAvailable()) {
qreal v = player->audio()->volume();
if (v > 0.5)
v += 0.1;
else if (v > 0.1)
v += 0.05;
else
v += 0.025;
player->audio()->setVolume(v);
qDebug("vol = %.3f", player->audio()->volume());
}
}
break;
case Qt::Key_Down: {
AudioOutput *ao = player->audio();
if (modifiers == Qt::ControlModifier) {
qreal s = player->speed();
if (s < 1.4)
s -= 0.02;
else
s -= 0.05;
if (qAbs<qreal>(s-1.0) <= 0.01)
s = 1.0;
s = qMax<qreal>(s, 0.0);
player->setSpeed(s);
return true;
}
if (ao && ao->isAvailable()) {
qreal v = player->audio()->volume();
if (v > 0.5)
v -= 0.1;
else if (v > 0.1)
v -= 0.05;
else
v -= 0.025;
player->audio()->setVolume(v);
qDebug("vol = %.3f", player->audio()->volume());
}
}
break;
case Qt::Key_O: {
if (modifiers == Qt::ControlModifier) {
//TODO: emit a signal so we can use custome dialogs?
openLocalFile();
} else/* if (m == Qt::NoModifier) */{
//foreach renderer, or just current widget? add shortcuts for all vo?
OSDFilter *osd = player->renderer()->osdFilter();
if (osd)
osd->useNextShowType();
}
}
break;
case Qt::Key_Left:
qDebug("<-");
player->seekBackward();
break;
case Qt::Key_Right:
qDebug("->");
player->seekForward();
break;
case Qt::Key_M:
if (player->audio()) {
player->audio()->setMute(!player->audio()->isMute());
}
break;
case Qt::Key_R: {
VideoRenderer* renderer = player->renderer();
VideoRenderer::OutAspectRatioMode r = renderer->outAspectRatioMode();
renderer->setOutAspectRatioMode(VideoRenderer::OutAspectRatioMode(((int)r+1)%2));
}
break;
case Qt::Key_T: {
QWidget *w = qApp->activeWindow();
if (!w)
return false;
Qt::WindowFlags wf = w->windowFlags();
if (wf & Qt::WindowStaysOnTopHint) {
qDebug("Window not stays on top");
w->setWindowFlags(wf & ~Qt::WindowStaysOnTopHint);
} else {
qDebug("Window stays on top");
w->setWindowFlags(wf | Qt::WindowStaysOnTopHint);
}
//call setParent() when changing the flags, causing the widget to be hidden
w->show();
}
break;
case Qt::Key_F1:
help();
break;
default:
return false;
}
break;
}
case QEvent::DragEnter:
case QEvent::DragMove: {
QDropEvent *e = static_cast<QDropEvent*>(event);
e->acceptProposedAction();
}
break;
case QEvent::Drop: {
QDropEvent *e = static_cast<QDropEvent*>(event);
QString path = e->mimeData()->urls().first().toLocalFile();
player->stop();
player->load(path);
player->play();
e->acceptProposedAction();
}
break;
case QEvent::GraphicsSceneContextMenu: {
QGraphicsSceneContextMenuEvent *e = static_cast<QGraphicsSceneContextMenuEvent*>(event);
showMenu(e->screenPos());
}
break;
case QEvent::ContextMenu: {
QContextMenuEvent *e = static_cast<QContextMenuEvent*>(event);
showMenu(e->globalPos());
}
break;
default:
return false;
}
return true; //false: for text input
}
void init_audio_synth()
{
AudioOutput::Buffer buf;
buf.dataSize = BUFFER_SIZE * CHANNEL_NUM * sizeof(int16_t);
buf.data = (uint8_t *)&g_outBuf[0][0];
g_audioOut.add_buffer(&buf);
buf.data = (uint8_t *)&g_outBuf[1][0];
g_audioOut.add_buffer(&buf);
g_audioOut.set_source(&g_audioOutConverter);
AudioBuffer audioBuf(&g_audioBuf[0], BUFFER_SIZE);
g_audioOutConverter.set_buffer(audioBuf);
g_audioOutConverter.set_source(&g_mixer);
g_kickSeq.set_sample_rate(kSampleRate);
g_kickSeq.set_tempo(100.0f);
// g_kickSeq.set_sequence("x---x---x---x-x-x---x---x---x---xx--x--x--xxx-x-");
g_kickSeq.set_sequence("x---------x---------"); //x-x----xx---");
g_kickSeq.init();
g_kickGen.set_sample_rate(kSampleRate);
g_kickGen.set_sequence(&g_kickSeq);
g_kickGen.set_freq(50.0f);
g_kickGen.enable_sustain(false);
g_kickGen.init();
g_kickGen.set_attack(0.01f);
g_kickGen.set_release(0.6f);
g_bassSeq.set_sample_rate(kSampleRate);
g_bassSeq.set_tempo(100.0f);
g_bassSeq.set_sequence("--s>>>>p--------"); //"--s>>>p-----s>>>>>>p----");
g_bassSeq.init();
g_bassGen.set_sample_rate(kSampleRate);
g_bassGen.set_sequence(&g_bassSeq);
g_bassGen.set_freq(80.0f);
g_bassGen.enable_sustain(true);
g_bassGen.init();
g_bassGen.set_attack(0.3f);
g_bassGen.set_release(3.0f);
g_filter.set_sample_rate(kSampleRate);
g_filter.set_frequency(120.0f);
g_filter.set_q(0.4f);
g_filter.recompute_coefficients();
g_filter.set_input(&g_bassGen);
g_delay.set_sample_rate(kSampleRate);
g_delay.set_maximum_delay_seconds(0.4f);
g_delay.set_delay_samples(g_kickSeq.get_samples_per_beat());
g_delay.set_feedback(0.7f);
g_delay.set_wet_mix(0.5f);
g_delay.set_dry_mix(0.8f);
g_delay.set_input(&g_kickGen);
AudioBuffer mixBuf(&g_mixBuf[0], BUFFER_SIZE);
g_mixer.set_buffer(mixBuf);
g_mixer.set_input_count(2);
g_mixer.set_input(0, &g_delay, 0.5f);
g_mixer.set_input(1, &g_bassGen, 0.34f);
// g_mixer.set_input(2, &g_tickGen, 0.3f);
}
