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MediaPipe Team
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Hadon Nash
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Feb 10, 2020
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116 changes: 116 additions & 0 deletions
116
mediapipe/calculators/core/constant_side_packet_calculator.cc
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| // 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. | ||
|
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| #include <string> | ||
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| #include "mediapipe/calculators/core/constant_side_packet_calculator.pb.h" | ||
| #include "mediapipe/framework/calculator_framework.h" | ||
| #include "mediapipe/framework/collection_item_id.h" | ||
| #include "mediapipe/framework/port/canonical_errors.h" | ||
| #include "mediapipe/framework/port/ret_check.h" | ||
| #include "mediapipe/framework/port/status.h" | ||
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| namespace mediapipe { | ||
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| // Generates an output side packet or multiple output side packets according to | ||
| // the specified options. | ||
| // | ||
| // Example configs: | ||
| // node { | ||
| // calculator: "ConstantSidePacketCalculator" | ||
| // output_side_packet: "PACKET:packet" | ||
| // options: { | ||
| // [mediapipe.ConstantSidePacketCalculatorOptions.ext]: { | ||
| // packet { int_value: 2 } | ||
| // } | ||
| // } | ||
| // } | ||
| // | ||
| // node { | ||
| // calculator: "ConstantSidePacketCalculator" | ||
| // output_side_packet: "PACKET:0:int_packet" | ||
| // output_side_packet: "PACKET:1:bool_packet" | ||
| // options: { | ||
| // [mediapipe.ConstantSidePacketCalculatorOptions.ext]: { | ||
| // packet { int_value: 2 } | ||
| // packet { bool_value: true } | ||
| // } | ||
| // } | ||
| // } | ||
| class ConstantSidePacketCalculator : public CalculatorBase { | ||
| public: | ||
| static ::mediapipe::Status GetContract(CalculatorContract* cc) { | ||
| const auto& options = cc->Options().GetExtension( | ||
| ::mediapipe::ConstantSidePacketCalculatorOptions::ext); | ||
| RET_CHECK_EQ(cc->OutputSidePackets().NumEntries(kPacketTag), | ||
| options.packet_size()) | ||
| << "Number of output side packets has to be same as number of packets " | ||
| "configured in options."; | ||
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| int index = 0; | ||
| for (CollectionItemId id = cc->OutputSidePackets().BeginId(kPacketTag); | ||
| id != cc->OutputSidePackets().EndId(kPacketTag); ++id, ++index) { | ||
| const auto& packet_options = options.packet(index); | ||
| auto& packet = cc->OutputSidePackets().Get(id); | ||
| if (packet_options.has_int_value()) { | ||
| packet.Set<int>(); | ||
| } else if (packet_options.has_float_value()) { | ||
| packet.Set<float>(); | ||
| } else if (packet_options.has_bool_value()) { | ||
| packet.Set<bool>(); | ||
| } else if (packet_options.has_string_value()) { | ||
| packet.Set<std::string>(); | ||
| } else { | ||
| return ::mediapipe::InvalidArgumentError( | ||
| "None of supported values were specified in options."); | ||
| } | ||
| } | ||
| return ::mediapipe::OkStatus(); | ||
| } | ||
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| ::mediapipe::Status Open(CalculatorContext* cc) override { | ||
| const auto& options = cc->Options().GetExtension( | ||
| ::mediapipe::ConstantSidePacketCalculatorOptions::ext); | ||
| int index = 0; | ||
| for (CollectionItemId id = cc->OutputSidePackets().BeginId(kPacketTag); | ||
| id != cc->OutputSidePackets().EndId(kPacketTag); ++id, ++index) { | ||
| auto& packet = cc->OutputSidePackets().Get(id); | ||
| const auto& packet_options = options.packet(index); | ||
| if (packet_options.has_int_value()) { | ||
| packet.Set(MakePacket<int>(packet_options.int_value())); | ||
| } else if (packet_options.has_float_value()) { | ||
| packet.Set(MakePacket<float>(packet_options.float_value())); | ||
| } else if (packet_options.has_bool_value()) { | ||
| packet.Set(MakePacket<bool>(packet_options.bool_value())); | ||
| } else if (packet_options.has_string_value()) { | ||
| packet.Set(MakePacket<std::string>(packet_options.string_value())); | ||
| } else { | ||
| return ::mediapipe::InvalidArgumentError( | ||
| "None of supported values were specified in options."); | ||
| } | ||
| } | ||
| return ::mediapipe::OkStatus(); | ||
| } | ||
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| ::mediapipe::Status Process(CalculatorContext* cc) override { | ||
| return ::mediapipe::OkStatus(); | ||
| } | ||
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| private: | ||
| static constexpr const char* kPacketTag = "PACKET"; | ||
| }; | ||
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| REGISTER_CALCULATOR(ConstantSidePacketCalculator); | ||
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| } // namespace mediapipe |
36 changes: 36 additions & 0 deletions
36
mediapipe/calculators/core/constant_side_packet_calculator.proto
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| // 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. | ||
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| syntax = "proto2"; | ||
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| package mediapipe; | ||
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| import "mediapipe/framework/calculator.proto"; | ||
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| message ConstantSidePacketCalculatorOptions { | ||
| extend CalculatorOptions { | ||
| optional ConstantSidePacketCalculatorOptions ext = 291214597; | ||
| } | ||
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| message ConstantSidePacket { | ||
| oneof value { | ||
| int32 int_value = 1; | ||
| float float_value = 2; | ||
| bool bool_value = 3; | ||
| string string_value = 4; | ||
| } | ||
| } | ||
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| repeated ConstantSidePacket packet = 1; | ||
| } |
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