From d4fb0bb63b03224f3f395100631400719ac64041 Mon Sep 17 00:00:00 2001
From: Georges Berenger <gberenger@meta.com>
Date: Mon, 20 Nov 2023 16:50:17 -0800
Subject: [PATCH] Add helper method to set decimation

Summary: Simple time base decimation is too complex to set. This helper will help...

Reviewed By: kiminoue7

Differential Revision: D51460326

fbshipit-source-id: d9fa723b7c0f729c8f8a093bcb27e935ed9c1255
---
 vrs/utils/FilteredFileReader.cpp | 6 ++++++
 vrs/utils/FilteredFileReader.h   | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/vrs/utils/FilteredFileReader.cpp b/vrs/utils/FilteredFileReader.cpp
index 8cad3836..0ad65943 100644
--- a/vrs/utils/FilteredFileReader.cpp
+++ b/vrs/utils/FilteredFileReader.cpp
@@ -276,6 +276,12 @@ void FilteredFileReader::constrainTimeRange(double& inOutStartTimestamp, double&
   }
 }
 
+void FilteredFileReader::decimateByInterval(double minIntervalSec) {
+  utils::DecimationParams params;
+  params.bucketInterval = minIntervalSec;
+  decimator_ = make_unique<utils::Decimator>(*this, params);
+}
+
 void FilteredFileReader::getConstrainedTimeRange(
     double& outStartTimestamp,
     double& outEndTimestamp) {
diff --git a/vrs/utils/FilteredFileReader.h b/vrs/utils/FilteredFileReader.h
index 9e882917..a97055d9 100644
--- a/vrs/utils/FilteredFileReader.h
+++ b/vrs/utils/FilteredFileReader.h
@@ -173,6 +173,9 @@ struct FilteredFileReader {
   // Constrain the given time range to the current filter's time constraints
   void constrainTimeRange(double& inOutStartTimestamp, double& inOutEndTimestamp) const;
 
+  // Decimate data record with a minimum time interval
+  void decimateByInterval(double minIntervalSec);
+
   // Apply filters, which can only be done after the file was opened already
   void applyFilters(const RecordFilterParams& filters);
   void applyRecordableFilters(const vector<string>& filter);