mediapipe-rs/mediapipe/modules/face_geometry/env_generator_calculator.cc

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2022-06-11 21:25:48 +02:00
// Copyright 2020 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.
#include "mediapipe/framework/calculator_framework.h"
#include "mediapipe/framework/port/status.h"
#include "mediapipe/framework/port/status_macros.h"
#include "mediapipe/modules/face_geometry/env_generator_calculator.pb.h"
#include "mediapipe/modules/face_geometry/libs/validation_utils.h"
#include "mediapipe/modules/face_geometry/protos/environment.pb.h"
namespace mediapipe {
namespace {
static constexpr char kEnvironmentTag[] = "ENVIRONMENT";
// A calculator that generates an environment, which describes a virtual scene.
//
// Output side packets:
// ENVIRONMENT (`face_geometry::Environment`, required)
// Describes an environment; includes the camera frame origin point location
// as well as virtual camera parameters.
//
// Options:
// environment (`face_geometry.Environment`, required):
// Defines an environment to be packed as the output side packet.
//
// Must be valid (for details, please refer to the proto message definition
// comments and/or `modules/face_geometry/libs/validation_utils.h/cc`)
//
class EnvGeneratorCalculator : public CalculatorBase {
public:
static absl::Status GetContract(CalculatorContract* cc) {
cc->OutputSidePackets()
.Tag(kEnvironmentTag)
.Set<face_geometry::Environment>();
return absl::OkStatus();
}
absl::Status Open(CalculatorContext* cc) override {
cc->SetOffset(mediapipe::TimestampDiff(0));
const face_geometry::Environment& environment =
cc->Options<FaceGeometryEnvGeneratorCalculatorOptions>().environment();
MP_RETURN_IF_ERROR(face_geometry::ValidateEnvironment(environment))
<< "Invalid environment!";
cc->OutputSidePackets()
.Tag(kEnvironmentTag)
.Set(mediapipe::MakePacket<face_geometry::Environment>(environment));
return absl::OkStatus();
}
absl::Status Process(CalculatorContext* cc) override {
return absl::OkStatus();
}
absl::Status Close(CalculatorContext* cc) override {
return absl::OkStatus();
}
};
} // namespace
using FaceGeometryEnvGeneratorCalculator = EnvGeneratorCalculator;
REGISTER_CALCULATOR(FaceGeometryEnvGeneratorCalculator);
} // namespace mediapipe