89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
// Copyright 2022 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.
|
|
|
|
#ifndef MEDIAPIPE_FRAMEWORK_TOOL_PACKET_PROCESSOR_H_
|
|
#define MEDIAPIPE_FRAMEWORK_TOOL_PACKET_PROCESSOR_H_
|
|
|
|
#include <memory>
|
|
|
|
#include "mediapipe/framework/collection_item_id.h"
|
|
#include "mediapipe/framework/packet.h"
|
|
#include "mediapipe/framework/port/status.h"
|
|
|
|
namespace mediapipe {
|
|
|
|
// PacketConsumer accepts several tagged streams of packets.
|
|
class PacketConsumer {
|
|
public:
|
|
virtual ~PacketConsumer() = default;
|
|
|
|
// Accepts a tagged input packet.
|
|
virtual absl::Status AddPacket(CollectionItemId id, Packet packet) = 0;
|
|
|
|
// Returns the id for each input tag.
|
|
virtual std::shared_ptr<tool::TagMap> InputTags() = 0;
|
|
};
|
|
|
|
// PacketConsumer delivers several tagged streams of packets.
|
|
class PacketProducer {
|
|
public:
|
|
virtual ~PacketProducer() = default;
|
|
|
|
// Connects a consumer to recieve packets from this producer.
|
|
virtual void SetConsumer(PacketConsumer* consumer) = 0;
|
|
};
|
|
|
|
// SidePacketConsumer accepts several tagged constant packets.
|
|
class SidePacketConsumer {
|
|
public:
|
|
virtual ~SidePacketConsumer() = default;
|
|
|
|
// Accepts a tagged input side-packet.
|
|
virtual absl::Status SetSidePacket(CollectionItemId id, Packet packet) = 0;
|
|
|
|
// Returns the id for each input side-packet tag.
|
|
virtual std::shared_ptr<tool::TagMap> SideInputTags() = 0;
|
|
};
|
|
|
|
// SidePacketProducer delivers several tagged constant packets.
|
|
class SidePacketProducer {
|
|
public:
|
|
virtual ~SidePacketProducer() = default;
|
|
|
|
// Connects a consumer to recieve packets from this producer.
|
|
virtual void SetSideConsumer(SidePacketConsumer* consumer) = 0;
|
|
};
|
|
|
|
// PacketProcessor consumes and produces packet streams and constant packets.
|
|
class PacketProcessor : public PacketConsumer,
|
|
public PacketProducer,
|
|
public SidePacketConsumer,
|
|
public SidePacketProducer {
|
|
public:
|
|
virtual ~PacketProcessor() = default;
|
|
|
|
// Activate this PacketProcessor.
|
|
virtual absl::Status Start() = 0;
|
|
|
|
// Block until this PacketProcessor has no remaining work to do.
|
|
virtual absl::Status WaitUntilIdle() = 0;
|
|
|
|
// Deactivate this PacketProcessor.
|
|
virtual absl::Status Shutdown() = 0;
|
|
};
|
|
|
|
} // namespace mediapipe
|
|
|
|
#endif // MEDIAPIPE_FRAMEWORK_TOOL_PACKET_PROCESSOR_H_
|