40 lines
1.6 KiB
C++
40 lines
1.6 KiB
C++
// Copyright 2023 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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#ifndef MEDIAPIPE_CALCULATORS_INTERNAL_CALLBACK_PACKET_CALCULATOR_H_
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#define MEDIAPIPE_CALCULATORS_INTERNAL_CALLBACK_PACKET_CALCULATOR_H_
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#include "absl/status/status.h"
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#include "mediapipe/framework/calculator_base.h"
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namespace mediapipe {
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// Creates a callback which takes a packet and stores it either in a
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// vector of packets or stores only the packet at PostStream timestamp.
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// The kind of callback is controlled by an option. The callback is
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// a std::function and is directly usable by CallbackCalculator.
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// Since the options for the packet generator include a serialized pointer
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// value, the resulting callback is only valid on the original machine
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// while that pointer is still alive.
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class CallbackPacketCalculator : public CalculatorBase {
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public:
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static absl::Status GetContract(CalculatorContract* cc);
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absl::Status Open(CalculatorContext* cc) override;
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absl::Status Process(CalculatorContext* cc) override;
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};
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} // namespace mediapipe
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#endif // MEDIAPIPE_CALCULATORS_INTERNAL_CALLBACK_PACKET_CALCULATOR_H_
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