61 lines
2.4 KiB
C++
61 lines
2.4 KiB
C++
// Copyright 2019 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/test_service.h"
|
|
|
|
namespace mediapipe {
|
|
|
|
const GraphService<TestServiceObject> kTestService(
|
|
"test_service", GraphServiceBase::kDisallowDefaultInitialization);
|
|
const GraphService<int> kAnotherService(
|
|
"another_service", GraphServiceBase::kAllowDefaultInitialization);
|
|
const GraphService<NoDefaultConstructor> kNoDefaultService(
|
|
"no_default_service", GraphServiceBase::kAllowDefaultInitialization);
|
|
const GraphService<NeedsCreateMethod> kNeedsCreateService(
|
|
"needs_create_service", GraphServiceBase::kAllowDefaultInitialization);
|
|
|
|
absl::Status TestServiceCalculator::GetContract(CalculatorContract* cc) {
|
|
cc->Inputs().Index(0).Set<int>();
|
|
cc->Outputs().Index(0).SetSameAs(&cc->Inputs().Index(0));
|
|
// This service will be required. The graph won't start without it.
|
|
cc->UseService(kTestService);
|
|
// This service is optional for this calculator.
|
|
cc->UseService(kAnotherService).Optional();
|
|
return absl::OkStatus();
|
|
}
|
|
|
|
absl::Status TestServiceCalculator::Open(CalculatorContext* cc) {
|
|
cc->SetOffset(TimestampDiff(0));
|
|
// For an optional service, check whether it's available.
|
|
if (cc->Service(kAnotherService).IsAvailable()) {
|
|
optional_bias_ = cc->Service(kAnotherService).GetObject();
|
|
}
|
|
return absl::OkStatus();
|
|
}
|
|
|
|
absl::Status TestServiceCalculator::Process(CalculatorContext* cc) {
|
|
int value = cc->Inputs().Index(0).Value().Get<int>();
|
|
// A required service is sure to be available, so we can just GetObject.
|
|
TestServiceObject& service_object = cc->Service(kTestService).GetObject();
|
|
int delta = service_object["delta"];
|
|
service_object["count"] += 1;
|
|
int x = value + delta + optional_bias_;
|
|
cc->Outputs().Index(0).Add(new int(x), cc->InputTimestamp());
|
|
return absl::OkStatus();
|
|
}
|
|
|
|
REGISTER_CALCULATOR(TestServiceCalculator);
|
|
|
|
} // namespace mediapipe
|