Added iOS pose landmarker options

mediapipe/tasks/ios/vision/pose_landmarker/BUILD

@@ -27,3 +27,13 @@ objc_library(
     ],
 )
 
+objc_library(
+    name = "MPPPoseLandmarkerOptions",
+    srcs = ["sources/MPPPoseLandmarkerOptions.m"],
+    hdrs = ["sources/MPPPoseLandmarkerOptions.h"],
+    deps = [
+        ":MPPPoseLandmarkerResult",
+        "//mediapipe/tasks/ios/core:MPPTaskOptions",
+        "//mediapipe/tasks/ios/vision/core:MPPRunningMode",
+    ],
+)

mediapipe/tasks/ios/vision/pose_landmarker/sources/MPPPoseLandmarkerOptions.h

@@ -0,0 +1,107 @@
+// Copyright 2023 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.
+
+#import <Foundation/Foundation.h>
+
+#import "mediapipe/tasks/ios/core/sources/MPPTaskOptions.h"
+#import "mediapipe/tasks/ios/vision/core/sources/MPPRunningMode.h"
+#import "mediapipe/tasks/ios/vision/pose_landmarker/sources/MPPPoseLandmarkerResult.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class MPPPoseLandmarker;
+
+/**
+ * This protocol defines an interface for the delegates of `PoseLandmarker` to receive
+ * results of performing asynchronous pose landmark detection on images (i.e, when `runningMode` =
+ * `.liveStream`).
+ *
+ * The delegate of `PoseLandmarker` must adopt `PoseLandmarkerLiveStreamDelegate` protocol.
+ * The methods in this protocol are optional.
+ */
+NS_SWIFT_NAME(PoseLandmarkerLiveStreamDelegate)
+@protocol MPPPoseLandmarkerLiveStreamDelegate <NSObject>
+
+/**
+ * This method notifies a delegate that the results of asynchronous pose landmark detection of an
+ * image submitted to the `PoseLandmarker` is available.
+ *
+ * This method is called on a private serial dispatch queue created by the `PoseLandmarker`
+ * for performing the asynchronous delegates calls.
+ *
+ * @param poseLandmarker The pose landmarker which performed the pose landmark detection.
+ * This is useful to test equality when there are multiple instances of `PoseLandmarker`.
+ * @param result The `PoseLandmarkerResult` object that contains a list of landmark.
+ * @param timestampInMilliseconds The timestamp (in milliseconds) which indicates when the input
+ * image was sent to the pose landmarker.
+ * @param error An optional error parameter populated when there is an error in performing pose
+ * landmark detection on the input live stream image data.
+ */
+- (void)poseLandmarker:(MPPPoseLandmarker *)poseLandmarker
+    didFinishDetectionWithResult:(nullable MPPPoseLandmarkerResult *)result
+         timestampInMilliseconds:(NSInteger)timestampInMilliseconds
+                           error:(nullable NSError *)error
+    NS_SWIFT_NAME(poseLandmarker(_:didFinishDetection:timestampInMilliseconds:error:));
+@end
+
+/** Options for setting up a `PoseLandmarker`. */
+NS_SWIFT_NAME(PoseLandmarkerOptions)
+@interface MPPPoseLandmarkerOptions : MPPTaskOptions <NSCopying>
+
+/**
+ * Running mode of the pose landmark dection task. Defaults to `.image`. `PoseLandmarker` can be
+ * created with one of the following running modes:
+ *  1. `.image`: The mode for performing pose landmark detection on single image inputs.
+ *  2. `.video`: The mode for performing pose landmark detection on the decoded frames of a video.
+ *  3. `.liveStream`: The mode for performing pose landmark detection on a live stream of input
+ * data, such as from the camera.
+ */
+@property(nonatomic) MPPRunningMode runningMode;
+
+/**
+ * An object that confirms to `PoseLandmarkerLiveStreamDelegate` protocol. This object must
+ * implement `poseLandmarker(_:didFinishDetectionWithResult:timestampInMilliseconds:error:)` to
+ * receive the results of performing asynchronous pose landmark detection on images (i.e, when
+ * `runningMode` = `.liveStream`).
+ */
+@property(nonatomic, weak, nullable) id<MPPPoseLandmarkerLiveStreamDelegate>
+    poseLandmarkerLiveStreamDelegate;
+
+/** The maximum number of poses that can be detected by the `PoseLandmarker`. Defaults to 1. */
+@property(nonatomic) NSInteger numPoses;
+
+/**
+ * The minimum confidence score for pose detection to be considered successful. Defaults to 0.5.
+ */
+@property(nonatomic) float minPoseDetectionConfidence;
+
+/**
+ * The minimum confidence score of pose presence score in the pose landmark detection. Defaults to
+ * 0.5.
+ */
+@property(nonatomic) float minPosePresenceConfidence;
+
+/**
+ * The minimum confidence score for pose tracking to be considered successful. Defaults to 0.5.
+ */
+@property(nonatomic) float minTrackingConfidence;
+
+/**
+ * Whether to output segmentation masks. Defaults to `false`.
+ */
+@property(nonatomic) BOOL shouldOutputSegmentationMasks;
+
+@end
+
+NS_ASSUME_NONNULL_END

mediapipe/tasks/ios/vision/pose_landmarker/sources/MPPPoseLandmarkerOptions.m

@@ -0,0 +1,45 @@
+// Copyright 2023 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.
+
+#import "mediapipe/tasks/ios/vision/pose_landmarker/sources/MPPPoseLandmarkerOptions.h"
+
+@implementation MPPPoseLandmarkerOptions
+
+- (instancetype)init {
+  self = [super init];
+  if (self) {
+    _numPoses = 1;
+    _minPoseDetectionConfidence = 0.5f;
+    _minPosePresenceConfidence = 0.5f;
+    _minTrackingConfidence = 0.5f;
+    _shouldOutputSegmentationMasks = NO;
+  }
+  return self;
+}
+
+- (id)copyWithZone:(NSZone *)zone {
+  MPPPoseLandmarkerOptions *poseLandmarkerOptions = [super copyWithZone:zone];
+
+  poseLandmarkerOptions.runningMode = self.runningMode;
+  poseLandmarkerOptions.numPoses = self.numPoses;
+  poseLandmarkerOptions.minPoseDetectionConfidence = self.minPoseDetectionConfidence;
+  poseLandmarkerOptions.minPosePresenceConfidence = self.minPosePresenceConfidence;
+  poseLandmarkerOptions.minTrackingConfidence = self.minTrackingConfidence;
+  poseLandmarkerOptions.shouldOutputSegmentationMasks = self.shouldOutputSegmentationMasks;
+  poseLandmarkerOptions.poseLandmarkerLiveStreamDelegate = self.poseLandmarkerLiveStreamDelegate;
+
+  return poseLandmarkerOptions;
+}
+
+@end