// 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.

syntax = "proto2";

// TODO: Switch to package mediapipe.
package mediapipe;

import "mediapipe/framework/calculator.proto";

message PacketLatencyCalculatorOptions {
  extend mediapipe.CalculatorOptions {
    optional PacketLatencyCalculatorOptions ext = 172681421;
  }

  // Number of intervals for the latency histogram output.
  optional int64 num_intervals = 1 [default = 10];

  // Interval size (in microseconds) for the histogram.
  optional int64 interval_size_usec = 2 [default = 10000];

  // Reset time (in microseconds) for histogram and average. The histogram and
  // running average are initialized to zero periodically based on the specified
  // duration. Negative value implies never resetting the statistics.
  optional int64 reset_duration_usec = 3 [default = -1];

  // Identifier labels for each input packet stream. The order of labels must
  // correspond 1:1 with the input streams order. The labels are copied to the
  // latency information output by the calculator.
  repeated string packet_labels = 4;
}
