73 lines
3.0 KiB
Protocol Buffer
73 lines
3.0 KiB
Protocol Buffer
// 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";
|
|
|
|
package mediapipe;
|
|
|
|
import "mediapipe/framework/calculator.proto";
|
|
|
|
message TimeSeriesFramerCalculatorOptions {
|
|
extend CalculatorOptions {
|
|
optional TimeSeriesFramerCalculatorOptions ext = 50631621;
|
|
}
|
|
|
|
// Frame duration in seconds. Required. Must be greater than 0. This is
|
|
// rounded to the nearest integer number of samples.
|
|
optional double frame_duration_seconds = 1;
|
|
|
|
// Frame overlap in seconds.
|
|
//
|
|
// If emulate_fractional_frame_overlap is false (the default), then the frame
|
|
// overlap is rounded to the nearest integer number of samples, and the step
|
|
// from one frame to the next will be the difference between the number of
|
|
// samples in a frame and the number of samples in the overlap.
|
|
//
|
|
// If emulate_fractional_frame_overlap is true, then frame overlap will be a
|
|
// variable number of samples, such that the long-time average time step from
|
|
// one frame to the next will be the difference between the (nominal, not
|
|
// rounded) frame_duration_seconds and frame_overlap_seconds. This is useful
|
|
// where the desired time step is not an integral number of input samples.
|
|
//
|
|
// A negative frame_overlap_seconds corresponds to skipping some input samples
|
|
// between each frame of emitted samples.
|
|
//
|
|
// Required that frame_overlap_seconds < frame_duration_seconds.
|
|
optional double frame_overlap_seconds = 2 [default = 0.0];
|
|
|
|
// See frame_overlap_seconds for semantics.
|
|
optional bool emulate_fractional_frame_overlap = 5 [default = false];
|
|
|
|
// Whether to pad the final packet with zeros. If true, guarantees that all
|
|
// input samples (other than those that fall in gaps implied by negative
|
|
// frame_overlap_seconds) will be emitted. If set to false, any partial
|
|
// packet at the end of the stream will be dropped.
|
|
optional bool pad_final_packet = 3 [default = true];
|
|
|
|
// Optional windowing function. The default is NONE (no windowing function).
|
|
enum WindowFunction {
|
|
NONE = 0;
|
|
HAMMING = 1;
|
|
HANN = 2;
|
|
}
|
|
optional WindowFunction window_function = 4 [default = NONE];
|
|
|
|
// If use_local_timestamp is true, the output packet's timestamp is based on
|
|
// the last sample of the packet and it's inferred from the latest input
|
|
// packet's timestamp. If false, the output packet's timestamp is based on
|
|
// the cumulative timestamping, which is inferred from the intial input
|
|
// timestamp and the cumulative number of samples.
|
|
optional bool use_local_timestamp = 6 [default = false];
|
|
}
|