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MediaPipe Team
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// Copyright 2019 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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syntax = "proto2";
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package mediapipe;
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import "mediapipe/util/color.proto";
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// A RenderData is a collection of multiple RenderAnnotations. For example, a
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// face can be rendered using a group of annotations: a bounding box around the
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// face (rectangle) and annotations for various face parts such as eyes, nose
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// etc (2D points).
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message RenderData {
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repeated RenderAnnotation render_annotations = 1;
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// An optional string that uniquely identifies this class of annotations.
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optional string scene_class = 2;
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// An optional viewport to which this set of annotations are intended to be
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// rendered. If left unset, the annotations are meant to render overtop of the
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// existing camera feed in the "main" viewport. If set, the annotations are to
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// be rendered in a separate viewport.
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optional RenderViewport scene_viewport = 3;
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}
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message RenderAnnotation {
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message Rectangle {
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// Left and top refer to the x and y coordinates of the top-left corner
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// of rectangle, whereas right and bottom refer to the x and y coordinates
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// of the bottom-right corner of rectangle.
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optional double left = 1;
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optional double top = 2;
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optional double right = 3;
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optional double bottom = 4;
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optional bool normalized = 5 [default = false];
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}
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message FilledRectangle {
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optional Rectangle rectangle = 1;
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// Color to fill in the rectangle.
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optional Color fill_color = 2;
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}
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message RoundedRectangle {
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// A rounded rectangle is specified by a rectangle and a corner radius to
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// round each corner by. A corner radius of 0 implies a standard non-rounded
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// rectangle (i.e. sharp edges) but as the radius increases proportionally
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// to the width and height of the overall rectangle size, the corners
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// increasingly round.
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optional Rectangle rectangle = 1;
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// The radius of the round corners.
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optional int32 corner_radius = 2 [default = 0];
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// Use one of the following:
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// -1: a filled line (FILLED)
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// 4: a 4-connected line (LINE_4)
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// 8: a 8-connected line (LINE_8)
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// 16: an antialiased line (LINE_AA).
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optional int32 line_type = 3 [default = 4];
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}
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message FilledRoundedRectangle {
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optional RoundedRectangle rounded_rectangle = 1;
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// Color to fill in the rounded rectangle.
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optional Color fill_color = 2;
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}
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message Oval {
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// An oval is specified by the rectangle that encloses the oval. For
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// example, a circle with center at (x,y) and radius r can be specified as a
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// Rectangle with left = x - r, right = y - r, and width = height = 2 * r.
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optional Rectangle rectangle = 1;
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}
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message FilledOval {
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optional Oval oval = 1;
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// Color to fill in the oval.
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optional Color fill_color = 2;
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}
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message Point {
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optional double x = 1;
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optional double y = 2;
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optional bool normalized = 3 [default = false];
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}
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message Line {
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optional double x_start = 1;
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optional double y_start = 2;
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optional double x_end = 3;
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optional double y_end = 4;
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optional bool normalized = 5 [default = false];
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enum LineType {
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UNKNOWN = 0;
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SOLID = 1;
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DASHED = 2;
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}
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optional LineType line_type = 6 [default = SOLID];
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}
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message Arrow {
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// The arrow head will be drawn at (x_end, y_end).
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optional double x_start = 1;
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optional double y_start = 2;
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optional double x_end = 3;
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optional double y_end = 4;
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optional bool normalized = 5 [default = false];
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}
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message Text {
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optional string display_text = 1;
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// The location to render the text. Left and baseline refer to the x and y
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// coordinates of the start location of text respectively.
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optional double left = 2;
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optional double baseline = 3;
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// The height of the text from top to baseline. When normalized=true, font
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// height is specified wrt the image height.
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optional double font_height = 4 [default = 8];
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optional bool normalized = 5 [default = false];
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// Specifies the font for the text. Font must be one of the following from
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// OpenCV:
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// cv::FONT_HERSHEY_SIMPLEX (0)
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// cv::FONT_HERSHEY_PLAIN (1)
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// cv::FONT_HERSHEY_DUPLEX (2)
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// cv::FONT_HERSHEY_COMPLEX (3)
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// cv::FONT_HERSHEY_TRIPLEX (4)
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// cv::FONT_HERSHEY_COMPLEX_SMALL (5)
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// cv::FONT_HERSHEY_SCRIPT_SIMPLEX (6)
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// cv::FONT_HERSHEY_SCRIPT_COMPLEX (7)
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optional int32 font_face = 6 [default = 0];
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}
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// The RenderAnnotation can be one of the below formats.
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oneof data {
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Rectangle rectangle = 1;
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FilledRectangle filled_rectangle = 2;
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Oval oval = 3;
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FilledOval filled_oval = 4;
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Point point = 5;
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Line line = 6;
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Arrow arrow = 7;
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Text text = 8;
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RoundedRectangle rounded_rectangle = 9;
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FilledRoundedRectangle filled_rounded_rectangle = 10;
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}
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// Thickness for drawing the annotation.
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optional double thickness = 11 [default = 1.0];
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// Color for drawing the annotation. For FilledRectangle and FilledOval, this
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// color is used only for drawing the boundary.
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optional Color color = 12;
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// A hint regarding what this annotation is for. Should be unique across all
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// annotation types.
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optional string scene_tag = 13;
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}
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// Represents a destination viewport to render annotations into, when specified
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// in RenderData.
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message RenderViewport {
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// A unique identifier for this viewport.
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optional string id = 1;
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// The width and height of this viewport in absolute pixels.
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// Normalized coordinates on annotations destined for this viewport as
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// normalized relative to these absolute pixel dimensions.
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// Camera feeds destined for this viewport will be rescaled to match these
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// dimensions.
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// Note: It is not expected that mid-stream resizing should be possible --
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// the visualizer is epxected to use the first dimensions it sees for a given
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// viewport and ignore any ignore subsequent changes.
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optional int32 width_px = 2;
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optional int32 height_px = 3;
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// Set to true if this viewport should render its annotations overtop of a
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// (rescaled to width/height) copy of the camera feed.
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optional bool compose_on_video = 4;
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}
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