Header for callback_packet_calculator to allow dynamic registration for superusers
PiperOrigin-RevId: 556977122
This commit is contained in:
parent
9c5bdd2eb9
commit
a183212a13
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@ -31,12 +31,14 @@ mediapipe_proto_library(
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cc_library(
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cc_library(
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name = "callback_packet_calculator",
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name = "callback_packet_calculator",
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srcs = ["callback_packet_calculator.cc"],
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srcs = ["callback_packet_calculator.cc"],
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hdrs = ["callback_packet_calculator.h"],
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visibility = ["//mediapipe/framework:__subpackages__"],
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visibility = ["//mediapipe/framework:__subpackages__"],
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deps = [
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deps = [
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":callback_packet_calculator_cc_proto",
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":callback_packet_calculator_cc_proto",
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"//mediapipe/framework:calculator_base",
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"//mediapipe/framework:calculator_base",
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"//mediapipe/framework:calculator_registry",
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"//mediapipe/framework:calculator_registry",
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"//mediapipe/framework:output_side_packet",
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"//mediapipe/framework:output_side_packet",
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"@com_google_absl//absl/status",
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],
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],
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alwayslink = 1,
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alwayslink = 1,
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)
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)
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@ -11,10 +11,12 @@
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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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// See the License for the specific language governing permissions and
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// limitations under the License.
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// limitations under the License.
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#include "mediapipe/calculators/internal/callback_packet_calculator.h"
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#include <functional>
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#include <functional>
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#include <string>
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#include <string>
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#include "absl/status/status.h"
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#include "mediapipe/calculators/internal/callback_packet_calculator.pb.h" // NOLINT
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#include "mediapipe/calculators/internal/callback_packet_calculator.pb.h" // NOLINT
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#include "mediapipe/framework/calculator_base.h"
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#include "mediapipe/framework/calculator_base.h"
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#include "mediapipe/framework/calculator_registry.h"
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#include "mediapipe/framework/calculator_registry.h"
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@ -39,64 +41,55 @@ void DumpPostStreamPacket(Packet* post_stream_packet, const Packet& packet) {
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*post_stream_packet = packet;
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*post_stream_packet = packet;
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}
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}
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}
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}
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} // namespace
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} // namespace
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// Creates a callback which takes a packet and stores it either in a
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absl::Status CallbackPacketCalculator::GetContract(CalculatorContract* cc) {
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// vector of packets or stores only the packet at PostStream timestamp.
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const auto& options = cc->Options<CallbackPacketCalculatorOptions>();
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// The kind of callback is controlled by an option. The callback is
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switch (options.type()) {
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// a std::function and is directly usable by CallbackCalculator.
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case CallbackPacketCalculatorOptions::VECTOR_PACKET:
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// Since the options for the packet generator include a serialized pointer
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case CallbackPacketCalculatorOptions::POST_STREAM_PACKET:
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// value, the resulting callback is only valid on the original machine
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cc->OutputSidePackets()
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// while that pointer is still alive.
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.Index(0)
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class CallbackPacketCalculator : public CalculatorBase {
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.Set<std::function<void(const Packet&)>>();
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public:
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break;
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static absl::Status GetContract(CalculatorContract* cc) {
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default:
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const auto& options = cc->Options<CallbackPacketCalculatorOptions>();
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switch (options.type()) {
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case CallbackPacketCalculatorOptions::VECTOR_PACKET:
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case CallbackPacketCalculatorOptions::POST_STREAM_PACKET:
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cc->OutputSidePackets()
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.Index(0)
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.Set<std::function<void(const Packet&)>>();
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break;
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default:
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return mediapipe::InvalidArgumentErrorBuilder(MEDIAPIPE_LOC)
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<< "Invalid type of callback to produce.";
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}
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return absl::OkStatus();
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}
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absl::Status Open(CalculatorContext* cc) override {
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const auto& options = cc->Options<CallbackPacketCalculatorOptions>();
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void* ptr;
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if (sscanf(options.pointer().c_str(), "%p", &ptr) != 1) {
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return mediapipe::InvalidArgumentErrorBuilder(MEDIAPIPE_LOC)
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return mediapipe::InvalidArgumentErrorBuilder(MEDIAPIPE_LOC)
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<< "Stored pointer value in options is invalid.";
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<< "Invalid type of callback to produce.";
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}
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switch (options.type()) {
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case CallbackPacketCalculatorOptions::VECTOR_PACKET:
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cc->OutputSidePackets().Index(0).Set(
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MakePacket<std::function<void(const Packet&)>>(std::bind(
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&DumpToVector, reinterpret_cast<std::vector<Packet>*>(ptr),
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std::placeholders::_1)));
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break;
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case CallbackPacketCalculatorOptions::POST_STREAM_PACKET:
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cc->OutputSidePackets().Index(0).Set(
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MakePacket<std::function<void(const Packet&)>>(
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std::bind(&DumpPostStreamPacket, reinterpret_cast<Packet*>(ptr),
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std::placeholders::_1)));
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break;
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default:
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return mediapipe::InvalidArgumentErrorBuilder(MEDIAPIPE_LOC)
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<< "Invalid type to dump into.";
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}
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return absl::OkStatus();
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}
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}
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return absl::OkStatus();
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}
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absl::Status Process(CalculatorContext* cc) override {
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absl::Status CallbackPacketCalculator::Open(CalculatorContext* cc) {
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return absl::OkStatus();
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const auto& options = cc->Options<CallbackPacketCalculatorOptions>();
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void* ptr;
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if (sscanf(options.pointer().c_str(), "%p", &ptr) != 1) {
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return mediapipe::InvalidArgumentErrorBuilder(MEDIAPIPE_LOC)
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<< "Stored pointer value in options is invalid.";
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}
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}
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};
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switch (options.type()) {
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case CallbackPacketCalculatorOptions::VECTOR_PACKET:
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cc->OutputSidePackets().Index(0).Set(
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MakePacket<std::function<void(const Packet&)>>(std::bind(
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&DumpToVector, reinterpret_cast<std::vector<Packet>*>(ptr),
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std::placeholders::_1)));
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break;
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case CallbackPacketCalculatorOptions::POST_STREAM_PACKET:
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cc->OutputSidePackets().Index(0).Set(
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MakePacket<std::function<void(const Packet&)>>(
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std::bind(&DumpPostStreamPacket, reinterpret_cast<Packet*>(ptr),
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std::placeholders::_1)));
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break;
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default:
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return mediapipe::InvalidArgumentErrorBuilder(MEDIAPIPE_LOC)
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<< "Invalid type to dump into.";
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}
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return absl::OkStatus();
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}
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absl::Status CallbackPacketCalculator::Process(CalculatorContext* cc) {
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return absl::OkStatus();
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}
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REGISTER_CALCULATOR(CallbackPacketCalculator);
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REGISTER_CALCULATOR(CallbackPacketCalculator);
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39
mediapipe/calculators/internal/callback_packet_calculator.h
Normal file
39
mediapipe/calculators/internal/callback_packet_calculator.h
Normal file
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@ -0,0 +1,39 @@
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// 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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