Project import generated by Copybara.

GitOrigin-RevId: 7e1d382a1788ebd8412c5626581b4c4cf2fe75ea

mediapipe/examples/desktop/autoflip/calculators/BUILD

@@ -74,6 +74,7 @@ cc_library(
         ":content_zooming_calculator_state",
         "//mediapipe/examples/desktop/autoflip:autoflip_messages_cc_proto",
         "//mediapipe/framework:calculator_framework",
+        "//mediapipe/framework:packet",
         "//mediapipe/framework/formats:detection_cc_proto",
         "//mediapipe/framework/formats:image_frame",
         "//mediapipe/framework/formats:location_data_cc_proto",

mediapipe/examples/desktop/autoflip/calculators/content_zooming_calculator.cc

@@ -22,6 +22,7 @@
 #include "mediapipe/framework/formats/detection.pb.h"
 #include "mediapipe/framework/formats/image_frame.h"
 #include "mediapipe/framework/formats/location_data.pb.h"
+#include "mediapipe/framework/packet.h"
 #include "mediapipe/framework/port/ret_check.h"
 #include "mediapipe/framework/port/status.h"
 #include "mediapipe/framework/port/status_builder.h"
@@ -57,6 +58,8 @@ constexpr float kFieldOfView = 60;
 constexpr char kStateCache[] = "STATE_CACHE";
 // Tolerance for zooming out recentering.
 constexpr float kPixelTolerance = 3;
+// Returns 'true' when camera is moving (pan/tilt/zoom) & 'false' for no motion.
+constexpr char kCameraActive[] = "CAMERA_ACTIVE";
 
 namespace mediapipe {
 namespace autoflip {
@@ -181,6 +184,9 @@ absl::Status ContentZoomingCalculator::GetContract(
   if (cc->InputSidePackets().HasTag(kStateCache)) {
     cc->InputSidePackets().Tag(kStateCache).Set<StateCacheType*>();
   }
+  if (cc->Outputs().HasTag(kCameraActive)) {
+    cc->Outputs().Tag(kCameraActive).Set<bool>();
+  }
   return absl::OkStatus();
 }
 
@@ -649,6 +655,13 @@ absl::Status ContentZoomingCalculator::Process(
     path_solver_tilt_->ClearHistory();
     path_solver_zoom_->ClearHistory();
   }
+  const bool camera_active =
+      is_animating || pan_state || tilt_state || zoom_state;
+  if (cc->Outputs().HasTag(kCameraActive)) {
+    cc->Outputs()
+        .Tag(kCameraActive)
+        .AddPacket(MakePacket<bool>(camera_active).At(cc->InputTimestamp()));
+  }
 
   // Compute smoothed zoom camera path.
   MP_RETURN_IF_ERROR(path_solver_zoom_->AddObservation(