Added classifier options helpers

mediapipe/tasks/ios/components/processors/utils/BUILD

@@ -0,0 +1,29 @@
+# Copyright 2022 The MediaPipe Authors. All Rights Reserved.
+#
+# 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.
+
+package(default_visibility = ["//mediapipe/tasks:internal"])
+
+licenses(["notice"])
+
+objc_library(
+    name = "MPPClassifierOptionsHelpers",
+    srcs = ["sources/MPPClassifierOptions+Helpers.mm"],
+    hdrs = ["sources/MPPClassifierOptions+Helpers.h"],
+    deps = [
+       "//mediapipe/tasks/cc/components/processors/proto:classifier_options_cc_proto",
+       "//mediapipe/tasks/ios/components/processors:MPPClassifierOptions",
+       "//mediapipe/tasks/ios/common/utils:NSStringHelpers",
+    ]
+)
+

mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.h

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+// Copyright 2022 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.
+
+#include "mediapipe/tasks/cc/components/processors/proto/classifier_options.pb.h"
+#import "mediapipe/tasks/ios/components/processors/sources/MPPClassifierOptions.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface MPPClassifierOptions (Helpers)
+- (void)copyToProto:
+    (mediapipe::tasks::components::processors::proto::ClassifierOptions *)classifierOptionsProto;
+@end
+
+NS_ASSUME_NONNULL_END

mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.mm

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+// Copyright 2022 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/common/utils/sources/NSString+Helpers.h"
+#import "mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.h"
+
+namespace {
+using ClassifierOptionsProto = ::mediapipe::tasks::components::processors::proto::ClassifierOptions;
+}
+
+@implementation MPPClassifierOptions (Helpers)
+- (void)copyToProto:(ClassifierOptionsProto *)classifierOptionsProto {
+  if (self.displayNamesLocale) {
+    classifierOptionsProto->set_display_names_locale(self.displayNamesLocale.cppString);
+  }
+  classifierOptionsProto->set_max_results((int)self.maxResults);
+  classifierOptionsProto->set_score_threshold(self.scoreThreshold);
+  for (NSString *category in self.labelAllowList) {
+    classifierOptionsProto->add_category_allowlist(category.cppString);
+  }
+
+  for (NSString *category in self.labelDenyList) {
+    classifierOptionsProto->add_category_denylist(category.cppString);
+  }
+}
+
+@end