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PiperOrigin-RevId: 253489161

mediapipe/framework/packet_set.h

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+// 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.
+
+#ifndef MEDIAPIPE_FRAMEWORK_PACKET_SET_H_
+#define MEDIAPIPE_FRAMEWORK_PACKET_SET_H_
+
+#include "mediapipe/framework/collection.h"
+#include "mediapipe/framework/packet.h"
+
+namespace mediapipe {
+
+// A PacketSet is used to hold a collection of Packets accessed either
+// by index or by tag name.
+typedef internal::Collection<Packet> PacketSet;
+
+// A similar construct for output side packets.
+class OutputSidePacket;
+typedef internal::Collection<OutputSidePacket,
+                             internal::CollectionStorage::kStorePointer>
+    OutputSidePacketSet;
+
+// Similar constructs for input and output streams.
+// TODO: Remove InputStreamSet and OutputStreamSet.
+class InputStream;
+typedef internal::Collection<InputStream*> InputStreamSet;
+class OutputStream;
+typedef internal::Collection<OutputStream*> OutputStreamSet;
+
+// Similar constructs for input and output stream shards.
+// TODO: Rename to InputStreamSet and OutputStreamSet.
+class InputStreamShard;
+typedef internal::Collection<InputStreamShard> InputStreamShardSet;
+class OutputStreamShard;
+typedef internal::Collection<OutputStreamShard> OutputStreamShardSet;
+
+}  // namespace mediapipe
+
+#endif  // MEDIAPIPE_FRAMEWORK_PACKET_SET_H_