void
TrackMarker::resetOffset()
{
KnobDoublePtr knob = getOffsetKnob();
for (int i = 0; i < knob->getDimension(); ++i) {
knob->resetToDefaultValue(i);
}
}
void
TrackMarker::setKeyFrameOnCenterAndPatternAtTime(int time)
{
KnobDoublePtr center = _imp->center.lock();
for (int i = 0; i < center->getDimension(); ++i) {
double v = center->getValueAtTime(time, i);
center->setValueAtTime(time, v, ViewSpec::all(), i);
}
KnobDoublePtr patternCorners[4] = {_imp->patternBtmLeft.lock(), _imp->patternTopLeft.lock(), _imp->patternTopRight.lock(), _imp->patternBtmRight.lock()};
for (int c = 0; c < 4; ++c) {
KnobDoublePtr k = patternCorners[c];
for (int i = 0; i < k->getDimension(); ++i) {
double v = k->getValueAtTime(time, i);
k->setValueAtTime(time, v, ViewSpec::all(), i);
}
}
}
void
TrackMarkerPM::initializeKnobs()
{
TrackMarker::initializeKnobs();
NodePtr thisNode = getContext()->getNode();
QObject::connect( getContext().get(), SIGNAL(onNodeInputChanged(int)), this, SLOT(onTrackerNodeInputChanged(int)) );
NodePtr node;
{
CreateNodeArgs args( PLUGINID_OFX_TRACKERPM, NodeCollectionPtr() );
args.setProperty<bool>(kCreateNodeArgsPropOutOfProject, true);
args.setProperty<bool>(kCreateNodeArgsPropNoNodeGUI, true);
args.setProperty<std::string>(kCreateNodeArgsPropNodeInitialName, "TrackerPMNode");
node = getContext()->getNode()->getApp()->createNode(args);
if (!node) {
throw std::runtime_error("Couldn't create plug-in " PLUGINID_OFX_TRACKERPM);
}
if (thisNode) {
NodePtr inputNode = thisNode->getInput(0);
if (inputNode) {
node->connectInput(inputNode, 0);
}
}
trackerNode = node;
}
trackPrevButton = getNodeKnob<KnobButton>(node, kTrackerPMParamTrackingPrevious);
trackNextButton = getNodeKnob<KnobButton>(node, kTrackerPMParamTrackingNext);
KnobDoublePtr center = getNodeKnob<KnobDouble>(node, kTrackerPMParamTrackingCenterPoint);
centerKnob = center;
// Slave the center knob and unslave when tracking
for (int i = 0; i < center->getDimension(); ++i) {
center->slaveTo(i, getCenterKnob(), i);
}
KnobDoublePtr offset = getNodeKnob<KnobDouble>(node, kTrackerPMParamTrackingOffset);
// Slave the offset knob
for (int i = 0; i < offset->getDimension(); ++i) {
offset->slaveTo(i, getOffsetKnob(), i);
}
offsetKnob = offset;
// Ref frame is set for each
refFrameKnob = getNodeKnob<KnobInt>(node, kTrackerPMParamTrackingReferenceFrame);
// Enable reference frame
KnobBoolPtr enableRefFrameKnob = getNodeKnob<KnobBool>(node, kTrackerPMParamTrackingEnableReferenceFrame);
enableRefFrameKnob->setValue(true);
KnobChoicePtr scoreType = getNodeKnob<KnobChoice>(node, kTrackerPMParamScore);
scoreType->slaveTo(0, getContext()->getCorrelationScoreTypeKnob(), 0);
scoreTypeKnob = scoreType;
KnobDoublePtr correlationScore = getNodeKnob<KnobDouble>(node, kTrackerPMParamTrackingCorrelationScore);
correlationScoreKnob = correlationScore;
KnobDoublePtr patternBtmLeft = getNodeKnob<KnobDouble>(node, kTrackerPMParamTrackingPatternBoxBtmLeft);
patternBtmLeftKnob = patternBtmLeft;
// Slave the search window and pattern of the node to the parameters of the marker
for (int i = 0; i < patternBtmLeft->getDimension(); ++i) {
patternBtmLeft->slaveTo(i, getPatternBtmLeftKnob(), i);
}
KnobDoublePtr patternTopRight = getNodeKnob<KnobDouble>(node, kTrackerPMParamTrackingPatternBoxTopRight);
patternTopRightKnob = patternTopRight;
for (int i = 0; i < patternTopRight->getDimension(); ++i) {
patternTopRight->slaveTo(i, getPatternTopRightKnob(), i);
}
KnobDoublePtr searchWindowBtmLeft = getNodeKnob<KnobDouble>(node, kTrackerPMParamTrackingSearchBoxBtmLeft);
searchWindowBtmLeftKnob = searchWindowBtmLeft;
for (int i = 0; i < searchWindowBtmLeft->getDimension(); ++i) {
searchWindowBtmLeft->slaveTo(i, getSearchWindowBottomLeftKnob(), i);
}
KnobDoublePtr searchWindowTopRight = getNodeKnob<KnobDouble>(node, kTrackerPMParamTrackingSearchBoxTopRight);
searchWindowTopRightKnob = searchWindowTopRight;
for (int i = 0; i < searchWindowTopRight->getDimension(); ++i) {
searchWindowTopRight->slaveTo(i, getSearchWindowTopRightKnob(), i);
}
} // TrackMarkerPM::initializeKnobs
bool
TrackMarkerPM::trackMarker(bool forward,
int refFrame,
int frame)
{
KnobButtonPtr button;
if (forward) {
button = trackNextButton.lock();
} else {
button = trackPrevButton.lock();
}
KnobIntPtr refFrameK = refFrameKnob.lock();
refFrameK->setValue(refFrame);
// Unslave the center knob since the trackerNode will update it, then update the marker center
KnobDoublePtr center = centerKnob.lock();
for (int i = 0; i < center->getDimension(); ++i) {
center->unSlave(i, true);
}
trackerNode->getEffectInstance()->onKnobValueChanged_public(button, eValueChangedReasonNatronInternalEdited, frame, ViewIdx(0),
true);
KnobDoublePtr markerCenter = getCenterKnob();
// The TrackerPM plug-in has set a keyframe at the refFrame and frame, copy them
bool ret = true;
double centerPoint[2];
for (int i = 0; i < center->getDimension(); ++i) {
{
int index = center->getKeyFrameIndex(ViewSpec::current(), i, frame);
if (index != -1) {
centerPoint[i] = center->getValueAtTime(frame, i);
markerCenter->setValueAtTime(frame, centerPoint[i], ViewSpec::current(), i);
} else {
// No keyframe at this time: tracking failed
ret = false;
break;
}
}
{
int index = center->getKeyFrameIndex(ViewSpec::current(), i, refFrame);
if (index != -1) {
double value = center->getValueAtTime(refFrame, i);
markerCenter->setValueAtTime(refFrame, value, ViewSpec::current(), i);
}
}
}
// Convert the correlation score of the TrackerPM to the error
if (ret) {
KnobDoublePtr markerError = getErrorKnob();
KnobDoublePtr correlation = correlationScoreKnob.lock();
{
int index = correlation->getKeyFrameIndex(ViewSpec::current(), 0, frame);
if (index != -1) {
// The error is estimated as a percentage of the correlation across the number of pixels in the pattern window
KnobDoublePtr pBtmLeft = patternBtmLeftKnob.lock();
KnobDoublePtr pTopRight = patternTopRightKnob.lock();
Point btmLeft, topRight;
btmLeft.x = pBtmLeft->getValueAtTime(frame, 0);
btmLeft.y = pBtmLeft->getValueAtTime(frame, 1);
topRight.x = pTopRight->getValueAtTime(frame, 0);
topRight.y = pTopRight->getValueAtTime(frame, 1);
double areaPixels = (topRight.x - btmLeft.x) * (topRight.y - btmLeft.y);
NodePtr trackerInput = trackerNode->getInput(0);
if (trackerInput) {
ImageComponents comps = trackerInput->getEffectInstance()->getComponents(-1);
areaPixels *= comps.getNumComponents();
}
double value = correlation->getValueAtTime(frame, 0);
// Convert to a percentage
value /= areaPixels;
markerError->setValueAtTime(frame, value, ViewSpec::current(), 0);
}
}
}
for (int i = 0; i < center->getDimension(); ++i) {
center->slaveTo(i, markerCenter, i);
}
return ret;
} // TrackMarkerPM::trackMarker