Project import generated by Copybara.

GitOrigin-RevId: b2062656e5b3d33264e28ed0cbca31c4b93fe1bf

mediapipe/calculators/video/BUILD

@@ -316,6 +316,7 @@ cc_library(
         "//mediapipe/util/tracking",
         "//mediapipe/util/tracking:box_tracker",
         "//mediapipe/util/tracking:tracking_visualization_utilities",
+        "@com_google_absl//absl/container:node_hash_set",
         "@com_google_absl//absl/strings",
     ],
     alwayslink = 1,

mediapipe/calculators/video/box_tracker_calculator.cc

@@ -18,6 +18,7 @@
 #include <unordered_map>
 #include <unordered_set>
 
+#include "absl/container/node_hash_set.h"
 #include "absl/strings/numbers.h"
 #include "mediapipe/calculators/video/box_tracker_calculator.pb.h"
 #include "mediapipe/framework/calculator_framework.h"
@@ -193,12 +194,12 @@ class BoxTrackerCalculator : public CalculatorBase {
   TimedBoxProtoList initial_pos_;
 
   // Keeps tracks boxes that have already been initialized.
-  std::unordered_set<int> initialized_ids_;
+  absl::node_hash_set<int> initialized_ids_;
 
   // Non empty for batch mode tracking.
   std::string cache_dir_;
   // Ids to be tracked in batch_mode.
-  std::unordered_set<int> batch_track_ids_;
+  absl::node_hash_set<int> batch_track_ids_;
 
   int frame_num_ = 0;