bool TransitionHandler::addTransition(QString tag, int a_track, int b_track, GenTime in, GenTime out, QDomElement xml)
{
if (in >= out) return false;
double fps = m_tractor->get_fps();
QMap<QString, QString> args = getTransitionParamsFromXml(xml);
QScopedPointer<Mlt::Field> field(m_tractor->field());
Mlt::Transition transition(*m_tractor->profile(), tag.toUtf8().constData());
if (!transition.is_valid()) return false;
if (out != GenTime())
transition.set_in_and_out((int) in.frames(fps), (int) out.frames(fps) - 1);
QMap<QString, QString>::Iterator it;
QString key;
if (xml.attribute(QStringLiteral("automatic")) == QLatin1String("1")) transition.set("automatic", 1);
////qDebug() << " ------ ADDING TRANSITION PARAMs: " << args.count();
if (xml.hasAttribute(QStringLiteral("id")))
transition.set("kdenlive_id", xml.attribute(QStringLiteral("id")).toUtf8().constData());
if (xml.hasAttribute(QStringLiteral("force_track")))
transition.set("force_track", xml.attribute(QStringLiteral("force_track")).toInt());
for (it = args.begin(); it != args.end(); ++it) {
key = it.key();
if (!it.value().isEmpty())
transition.set(key.toUtf8().constData(), it.value().toUtf8().constData());
////qDebug() << " ------ ADDING TRANS PARAM: " << key << ": " << it.value();
}
// attach transition
m_tractor->lock();
plantTransition(field.data(), transition, a_track, b_track);
// field->plant_transition(*transition, a_track, b_track);
m_tractor->unlock();
return true;
}
bool TransitionHandler::moveTransition(QString type, int startTrack, int newTrack, int newTransitionTrack, GenTime oldIn, GenTime oldOut, GenTime newIn, GenTime newOut)
{
double fps = m_tractor->get_fps();
int new_in = (int)newIn.frames(fps);
int new_out = (int)newOut.frames(fps) - 1;
if (new_in >= new_out) return false;
int old_in = (int)oldIn.frames(fps);
int old_out = (int)oldOut.frames(fps) - 1;
bool doRefresh = true;
// Check if clip is visible in monitor
int position = mlt_producer_position(m_tractor->get_producer());
int diff = old_out - position;
if (diff < 0 || diff > old_out - old_in) doRefresh = false;
if (doRefresh) {
diff = new_out - position;
if (diff < 0 || diff > new_out - new_in) doRefresh = false;
}
QScopedPointer<Mlt::Field> field(m_tractor->field());
field->lock();
mlt_service nextservice = mlt_service_get_producer(field->get_service());
mlt_properties properties = MLT_SERVICE_PROPERTIES(nextservice);
QString resource = mlt_properties_get(properties, "mlt_service");
int old_pos = (int)(old_in + old_out) / 2;
bool found = false;
mlt_service_type mlt_type = mlt_service_identify( nextservice );
while (mlt_type == transition_type) {
Mlt::Transition transition((mlt_transition) nextservice);
nextservice = mlt_service_producer(nextservice);
int currentTrack = transition.get_b_track();
int currentIn = (int) transition.get_in();
int currentOut = (int) transition.get_out();
if (resource == type && startTrack == currentTrack && currentIn <= old_pos && currentOut >= old_pos) {
found = true;
if (newTrack - startTrack != 0) {
Mlt::Properties trans_props(transition.get_properties());
Mlt::Transition new_transition(*m_tractor->profile(), transition.get("mlt_service"));
Mlt::Properties new_trans_props(new_transition.get_properties());
// We cannot use MLT's property inherit because it also clones internal values like _unique_id which messes up the playlist
cloneProperties(new_trans_props, trans_props);
new_transition.set_in_and_out(new_in, new_out);
field->disconnect_service(transition);
plantTransition(field.data(), new_transition, newTransitionTrack, newTrack);
} else transition.set_in_and_out(new_in, new_out);
break;
}
if (nextservice == NULL) break;
properties = MLT_SERVICE_PROPERTIES(nextservice);
mlt_type = mlt_service_identify( nextservice );
resource = mlt_properties_get(properties, "mlt_service");
}
field->unlock();
if (doRefresh) refresh();
//if (m_isBlocked == 0) m_mltConsumer->set("refresh", 1);
return found;
}
// adds the transition by keeping the instance order from topmost track down to background
void TransitionHandler::plantTransition(Mlt::Transition &tr, int a_track, int b_track)
{
QScopedPointer<Mlt::Field> field(m_tractor->field());
plantTransition(field.data(), tr, a_track, b_track);
}
