Improved Tracker & Object Detector Effects (Faster Drawing, Corner Radius, New Style)

src/Clip.h

@@ -131,13 +131,13 @@ namespace openshot {
 		void apply_background(std::shared_ptr<openshot::Frame> frame, std::shared_ptr<openshot::Frame> background_frame);
 
 		/// Apply effects to the source frame (if any)
-		void apply_effects(std::shared_ptr<openshot::Frame> frame, std::shared_ptr<openshot::Frame> background_frame, TimelineInfoStruct* options, bool before_keyframes);
+		void apply_effects(std::shared_ptr<openshot::Frame> frame, int64_t timeline_frame_number, TimelineInfoStruct* options, bool before_keyframes);
 
 		/// Apply keyframes to an openshot::Frame and use an existing background frame (if any)
-		void apply_keyframes(std::shared_ptr<Frame> frame, std::shared_ptr<Frame> background_frame);
+		void apply_keyframes(std::shared_ptr<Frame> frame, QSize timeline_size);
 
 		/// Apply waveform image to an openshot::Frame and use an existing background frame (if any)
-		void apply_waveform(std::shared_ptr<Frame> frame, std::shared_ptr<Frame> background_frame);
+		void apply_waveform(std::shared_ptr<Frame> frame, QSize timeline_size);
 
 		/// Adjust frame number for Clip position and start (which can result in a different number)
 		int64_t adjust_timeline_framenumber(int64_t clip_frame_number);
@@ -154,15 +154,14 @@ namespace openshot {
 		/// Adjust the audio and image of a time mapped frame
 		void apply_timemapping(std::shared_ptr<openshot::Frame> frame);
 
-		/// Compare 2 floating point numbers
-		bool isEqual(double a, double b);
+		/// Compare 2 floating point numbers and return true if they are extremely close
+		bool isNear(double a, double b);
 
 		/// Sort effects by order
 		void sort_effects();
 
-		/// Reverse an audio buffer
-		void reverse_buffer(juce::AudioBuffer<float>* buffer);
-
+		/// Scale a source size to a target size (given a specific scale-type)
+		QSize scale_size(QSize source_size, ScaleType source_scale, int target_width, int target_height);
 
 	public:
 		openshot::GravityType gravity;   ///< The gravity of a clip determines where it snaps to its parent
@@ -224,6 +223,12 @@ namespace openshot {
 		/// Close the internal reader
 		void Close() override;
 
+		/// Return the associated ParentClip (if any)
+		openshot::Clip* GetParentClip();
+
+		/// Return the associated Parent Tracked Object (if any)
+		std::shared_ptr<openshot::TrackedObjectBase> GetParentTrackedObject();
+
 		/// Return the list of effects on the timeline
 		std::list<openshot::EffectBase*> Effects() { return effects; };
 

src/KeyFrame.cpp

@@ -374,18 +374,25 @@
 	Points.clear();
 	Points.shrink_to_fit();
 
-	if (!root["Points"].isNull())
-		// loop through points
-		for (const auto existing_point : root["Points"]) {
-			// Create Point
-			Point p;
-
-			// Load Json into Point
-			p.SetJsonValue(existing_point);
-
-			// Add Point to Keyframe
-			AddPoint(p);
-		}
+	if (root.isObject() && !root["Points"].isNull()) {
+        // loop through points in JSON Object
+        for (const auto existing_point : root["Points"]) {
+            // Create Point
+            Point p;
+
+            // Load Json into Point
+            p.SetJsonValue(existing_point);
+
+            // Add Point to Keyframe
+            AddPoint(p);
+        }
+    } else if (root.isNumeric()) {
+        // Create Point from Numeric value
+        Point p(root.asFloat());
+
+        // Add Point to Keyframe
+        AddPoint(p);
+	}
 }
 
 // Get the change in Y value (from the previous Y value)

src/TrackedObjectBBox.cpp

@@ -26,20 +26,19 @@
 
 // Default Constructor, delegating
 TrackedObjectBBox::TrackedObjectBBox()
-	: TrackedObjectBBox::TrackedObjectBBox(0, 0, 255, 0) {}
+	: TrackedObjectBBox::TrackedObjectBBox(0, 0, 255, 255) {}
 
 // Constructor that takes RGBA values for stroke, and sets the bounding-box
 // displacement as 0 and the scales as 1 for the first frame
 TrackedObjectBBox::TrackedObjectBBox(int Red, int Green, int Blue, int Alfa)
 	: delta_x(0.0), delta_y(0.0),
 	  scale_x(1.0), scale_y(1.0), rotation(0.0),
-	  background_alpha(1.0), background_corner(0),
-	  stroke_width(2) , stroke_alpha(0.0),
+	  background_alpha(0.0), background_corner(12),
+	  stroke_width(2) , stroke_alpha(0.7),
 	  stroke(Red, Green, Blue, Alfa),
-	  background(0, 0, 255, 0)
+	  background(0, 0, 255, Alfa)
 {
 	this->TimeScale = 1.0;
-	return;
 }
 
 // Add a BBox to the BoxVec map
@@ -315,7 +314,6 @@
 	root["BaseFPS"]["num"] = BaseFps.num;
 	root["BaseFPS"]["den"] = BaseFps.den;
 	root["TimeScale"] = TimeScale;
-	root["child_clip_id"] = ChildClipId();
 
 	// Keyframe's properties
 	root["delta_x"] = delta_x.JsonValue();
@@ -380,11 +378,6 @@
 	if (!root["protobuf_data_path"].isNull())
 		protobufDataPath = root["protobuf_data_path"].asString();
 
-	// Set the id of the child clip
-	if (!root["child_clip_id"].isNull() && root["child_clip_id"].asString() != Id()){
-		ChildClipId(root["child_clip_id"].asString());
-	}
-
 	// Set the Keyframes by the given JSON object
 	if (!root["delta_x"].isNull())
 		delta_x.SetJsonValue(root["delta_x"]);
@@ -426,26 +419,23 @@
 	// Add the ID of this object to the JSON object
 	root["box_id"] = add_property_json("Box ID", 0.0, "string", Id(), NULL, -1, -1, true, requested_frame);
 
-	// Add the ID of this object's child clip to the JSON object
-	root["child_clip_id"] = add_property_json("Child Clip ID", 0.0, "string", ChildClipId(), NULL, -1, -1, false, requested_frame);
-
 	// Add the data of given frame bounding-box to the JSON object
-	root["x1"] = add_property_json("X1", box.cx-(box.width/2), "float", "", NULL, 0.0, 1.0, false, requested_frame);
-	root["y1"] = add_property_json("Y1", box.cy-(box.height/2), "float", "", NULL, 0.0, 1.0, false, requested_frame);
-	root["x2"] = add_property_json("X2", box.cx+(box.width/2), "float", "", NULL, 0.0, 1.0, false, requested_frame);
-	root["y2"] = add_property_json("Y2", box.cy+(box.height/2), "float", "", NULL, 0.0, 1.0, false, requested_frame);
+	root["x1"] = add_property_json("X1", box.cx-(box.width/2), "float", "", NULL, 0.0, 1.0, true, requested_frame);
+	root["y1"] = add_property_json("Y1", box.cy-(box.height/2), "float", "", NULL, 0.0, 1.0, true, requested_frame);
+	root["x2"] = add_property_json("X2", box.cx+(box.width/2), "float", "", NULL, 0.0, 1.0, true, requested_frame);
+	root["y2"] = add_property_json("Y2", box.cy+(box.height/2), "float", "", NULL, 0.0, 1.0, true, requested_frame);
 
 	// Add the bounding-box Keyframes to the JSON object
 	root["delta_x"] = add_property_json("Displacement X-axis", delta_x.GetValue(requested_frame), "float", "", &delta_x, -1.0, 1.0, false, requested_frame);
 	root["delta_y"] = add_property_json("Displacement Y-axis", delta_y.GetValue(requested_frame), "float", "", &delta_y, -1.0, 1.0, false, requested_frame);
 	root["scale_x"] = add_property_json("Scale (Width)", scale_x.GetValue(requested_frame), "float", "", &scale_x, 0.0, 1.0, false, requested_frame);
 	root["scale_y"] = add_property_json("Scale (Height)", scale_y.GetValue(requested_frame), "float", "", &scale_y, 0.0, 1.0, false, requested_frame);
 	root["rotation"] = add_property_json("Rotation", rotation.GetValue(requested_frame), "float", "", &rotation, 0, 360, false, requested_frame);
-	root["visible"] = add_property_json("Visible", visible.GetValue(requested_frame), "int", "", &visible, 0, 1, false, requested_frame);
+	root["visible"] = add_property_json("Visible", visible.GetValue(requested_frame), "int", "", &visible, 0, 1, true, requested_frame);
 
-	root["draw_box"] = add_property_json("Draw Box", draw_box.GetValue(requested_frame), "int", "", &draw_box, -1, 1.0, false, requested_frame);
-	root["draw_box"]["choices"].append(add_property_choice_json("Off", 0, draw_box.GetValue(requested_frame)));
-	root["draw_box"]["choices"].append(add_property_choice_json("On", 1, draw_box.GetValue(requested_frame)));
+	root["draw_box"] = add_property_json("Draw Box", draw_box.GetValue(requested_frame), "int", "", &draw_box, 0, 1, false, requested_frame);
+    root["draw_box"]["choices"].append(add_property_choice_json("Yes", true, draw_box.GetValue(requested_frame)));
+	root["draw_box"]["choices"].append(add_property_choice_json("No", false, draw_box.GetValue(requested_frame)));
 
 	root["stroke"] = add_property_json("Border", 0.0, "color", "", NULL, 0, 255, false, requested_frame);
 	root["stroke"]["red"] = add_property_json("Red", stroke.red.GetValue(requested_frame), "float", "", &stroke.red, 0, 255, false, requested_frame);
@@ -455,7 +445,7 @@
 	root["stroke_alpha"] = add_property_json("Stroke alpha", stroke_alpha.GetValue(requested_frame), "float", "", &stroke_alpha, 0.0, 1.0, false, requested_frame);
 
 	root["background_alpha"] = add_property_json("Background Alpha", background_alpha.GetValue(requested_frame), "float", "", &background_alpha, 0.0, 1.0, false, requested_frame);
-	root["background_corner"] = add_property_json("Background Corner Radius", background_corner.GetValue(requested_frame), "int", "", &background_corner, 0.0, 60.0, false, requested_frame);
+	root["background_corner"] = add_property_json("Background Corner Radius", background_corner.GetValue(requested_frame), "int", "", &background_corner, 0.0, 150.0, false, requested_frame);
 
 	root["background"] = add_property_json("Background", 0.0, "color", "", NULL, 0, 255, false, requested_frame);
 	root["background"]["red"] = add_property_json("Red", background.red.GetValue(requested_frame), "float", "", &background.red, 0, 255, false, requested_frame);
@@ -530,36 +520,3 @@
 
 	return boxValues;
 }
-
-// Return a map that contains the properties of this object's parent clip
-std::map<std::string, float> TrackedObjectBBox::GetParentClipProperties(int64_t frame_number) const {
-
-	// Get the parent clip of this object as a Clip pointer
-	Clip* parentClip = (Clip *) ParentClip();
-
-	// Calculate parentClip's frame number
-	long parentClip_start_position = round( parentClip->Position() * parentClip->info.fps.ToDouble() ) + 1;
-	long parentClip_start_frame = ( parentClip->Start() * parentClip->info.fps.ToDouble() ) + 1;
-	float parentClip_frame_number = round(frame_number - parentClip_start_position) + parentClip_start_frame;
-
-	// Get parentClip's Keyframes
-	float parentClip_location_x = parentClip->location_x.GetValue(parentClip_frame_number);
-	float parentClip_location_y = parentClip->location_y.GetValue(parentClip_frame_number);
-	float parentClip_scale_x = parentClip->scale_x.GetValue(parentClip_frame_number);
-	float parentClip_scale_y = parentClip->scale_y.GetValue(parentClip_frame_number);
-	float parentClip_rotation = parentClip->rotation.GetValue(parentClip_frame_number);
-
-	// Initialize the parent clip properties map
-	std::map<std::string, float> parentClipProperties;
-
-	// Set the map properties
-	parentClipProperties["frame_number"] = parentClip_frame_number;
-	parentClipProperties["timeline_frame_number"] = frame_number;
-	parentClipProperties["location_x"] = parentClip_location_x;
-	parentClipProperties["location_y"] = parentClip_location_y;
-	parentClipProperties["scale_x"] = parentClip_scale_x;
-	parentClipProperties["scale_y"] = parentClip_scale_y;
-	parentClipProperties["rotation"] = parentClip_rotation;
-
-	return parentClipProperties;
-}

src/TrackedObjectBBox.h

@@ -211,9 +211,6 @@ namespace openshot
 
 		/// Return a map that contains the bounding box properties and it's keyframes indexed by their names
 		std::map<std::string, float> GetBoxValues(int64_t frame_number) const override;
-		/// Return a map that contains the properties of this object's parent clip
-		std::map<std::string, float> GetParentClipProperties(int64_t frame_number) const override;
-
 	};
 } // namespace openshot
 

src/TrackedObjectBase.cpp

@@ -23,7 +23,7 @@ namespace openshot
 
 	// Constructor
 	TrackedObjectBase::TrackedObjectBase(std::string _id)
-		: visible(1.0), draw_box(1), id(_id), childClipId("") {}
+		: visible(1.0), draw_box(1), id(_id) {}
 
 	Json::Value TrackedObjectBase::add_property_choice_json(
 		std::string name, int value, int selected_value) const

src/TrackedObjectBase.h

@@ -35,13 +35,14 @@ namespace openshot {
 	class TrackedObjectBase {
 	protected:
 		std::string id;
-		std::string childClipId;
-
 		ClipBase* parentClip;
 
 	public:
 
+	    /// Keyframe to track if a box is visible in the current frame (read-only)
 		Keyframe visible;
+
+	    /// Keyframe to determine if a specific box is drawn (or hidden)
 		Keyframe draw_box;
 
 		/// Default constructor
@@ -60,9 +61,6 @@ namespace openshot {
 		/// Get and set the parentClip of this object
 		ClipBase* ParentClip() const { return parentClip; }
 		void ParentClip(ClipBase* clip) { parentClip = clip; }
-		/// Get and set the Id of the childClip of this object
-		std::string ChildClipId() const { return childClipId; };
-		void ChildClipId(std::string _childClipId) { childClipId = _childClipId; };
 
 		/// Check if there is data for the exact frame number
 		virtual bool ExactlyContains(int64_t frame_number) const { return {}; };
@@ -71,8 +69,6 @@ namespace openshot {
 		virtual void ScalePoints(double scale) { return; };
 		/// Return the main properties of a TrackedObjectBBox instance - such as position, size and rotation
 		virtual std::map<std::string, float> GetBoxValues(int64_t frame_number) const { std::map<std::string, float> ret; return ret; };
-		/// Return the main properties of the tracked object's parent clip - such as position, size and rotation
-		virtual std::map<std::string, float> GetParentClipProperties(int64_t frame_number) const { std::map<std::string, float> ret; return ret; }
 		/// Add a bounding box to the tracked object's BoxVec map
 		virtual void AddBox(int64_t _frame_num, float _cx, float _cy, float _width, float _height, float _angle) { return; };