From c56ef735d7f8bf4fb7482c2b7dd01a61c3d0ffc4 Mon Sep 17 00:00:00 2001
From: Prianka Liz Kariat <prianka.kariat@ymedialabs.com>
Date: Wed, 21 Dec 2022 01:22:57 +0530
Subject: [PATCH] Added classifier options helpers

---
 .../ios/components/processors/utils/BUILD     | 29 ++++++++++++++
 .../sources/MPPClassifierOptions+Helpers.h    | 25 ++++++++++++
 .../sources/MPPClassifierOptions+Helpers.mm   | 38 +++++++++++++++++++
 3 files changed, 92 insertions(+)
 create mode 100644 mediapipe/tasks/ios/components/processors/utils/BUILD
 create mode 100644 mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.h
 create mode 100644 mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.mm

diff --git a/mediapipe/tasks/ios/components/processors/utils/BUILD b/mediapipe/tasks/ios/components/processors/utils/BUILD
new file mode 100644
index 000000000..820c6bb56
--- /dev/null
+++ b/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",
+    ]
+)
+
diff --git a/mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.h b/mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.h
new file mode 100644
index 000000000..6644a6255
--- /dev/null
+++ b/mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.h
@@ -0,0 +1,25 @@
+// 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
diff --git a/mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.mm b/mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.mm
new file mode 100644
index 000000000..25e657599
--- /dev/null
+++ b/mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.mm
@@ -0,0 +1,38 @@
+// 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