// Copyright 2021 The MediaPipe Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef MEDIAPIPE_CALCULATORS_LANDMARKS_TO_TENSOR_CALCULATOR_H_
#define MEDIAPIPE_CALCULATORS_LANDMARKS_TO_TENSOR_CALCULATOR_H_
#include <memory>
#include "mediapipe/framework/api2/node.h"
#include "mediapipe/framework/calculator_framework.h"
#include "mediapipe/framework/formats/landmark.pb.h"
#include "mediapipe/framework/formats/tensor.h"
namespace mediapipe {
namespace api2 {
// A calculator for converting landmars into a Tensor.
//
// Input:
// LANDMARKS (optional) - LandmarkList
// Landmarks to be converted into a Tensor.
// NORM_LANDMARKS (optional) - NormalizedLandmarkList.
// Normalized landmarks to be converted into a Tensor.
// IMAGE_SIZE (optional) - std::pair<int, int>
// Image size to scale NORM_LANDMARKS.
//
// Output:
// TENSORS - std::vector<Tensor>
// Vector containing a single Tensor populated with landmark values.
//
// Example:
// node {
// calculator: "LandmarksToTensorCalculator"
// input_stream: "LANDMARKS:landmarks"
// output_stream: "TENSORS:tensors"
// options: {
// [mediapipe.LandmarksToTensorCalculatorOptions.ext] {
// attributes: [X, Y, Z, VISIBILITY, PRESENCE]
// # flatten: true
// }
// }
// }
class LandmarksToTensorCalculator : public NodeIntf {
public:
static constexpr Input<mediapipe::LandmarkList>::Optional kInLandmarkList{
"LANDMARKS"};
static constexpr Input<mediapipe::NormalizedLandmarkList>::Optional
kInNormLandmarkList{"NORM_LANDMARKS"};
static constexpr Input<std::pair<int, int>>::Optional kImageSize{
"IMAGE_SIZE"};
static constexpr Output<std::vector<Tensor>> kOutTensors{"TENSORS"};
MEDIAPIPE_NODE_INTERFACE(LandmarksToTensorCalculator, kInLandmarkList,
kInNormLandmarkList, kImageSize, kOutTensors);
};
} // namespace api2
} // namespace mediapipe
#endif // MEDIAPIPE_CALCULATORS_LANDMARKS_TO_TENSOR_CALCULATOR_H_