Added iOS text classifier options and result helpers

mediapipe/tasks/ios/text/text_classifier/utils/BUILD

@@ -0,0 +1,41 @@
+# Copyright 2023 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 = "MPPTextClassifierOptionsHelpers",
+    srcs = ["sources/MPPTextClassifierOptions+Helpers.mm"],
+    hdrs = ["sources/MPPTextClassifierOptions+Helpers.h"],
+    deps = [
+        "//mediapipe/tasks/ios/text/text_classifier:MPPTextClassifierOptions",
+        "//mediapipe/tasks/ios/core/utils:MPPBaseOptionsHelpers",
+        "//mediapipe/tasks/ios/core:MPPTaskOptionsProtocol",
+        "//mediapipe/tasks/ios/components/processors/utils:MPPClassifierOptionsHelpers",
+        "//mediapipe/tasks/cc/text/text_classifier/proto:text_classifier_graph_options_cc_proto",
+    ],
+)
+
+objc_library(
+    name = "MPPTextClassifierResultHelpers",
+    srcs = ["sources/MPPTextClassifierResult+Helpers.mm"],
+    hdrs = ["sources/MPPTextClassifierResult+Helpers.h"],
+    deps = [
+        "//mediapipe/tasks/ios/text/text_classifier:MPPTextClassifierResult",
+        "//mediapipe/tasks/ios/components/containers/utils:MPPClassificationResultHelpers",
+        "//mediapipe/framework:packet",
+    ],
+)

mediapipe/tasks/ios/text/text_classifier/utils/sources/MPPTextClassifierOptions+Helpers.h

@@ -0,0 +1,26 @@
+// 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/core/sources/MPPTaskOptionsProtocol.h"
+#import "mediapipe/tasks/ios/text/text_classifier/sources/MPPTextClassifierOptions.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface MPPTextClassifierOptions (Helpers) <MPPTaskOptionsProtocol>
+
+- (void)copyToProto:(mediapipe::CalculatorOptions *)optionsProto;
+
+@end
+
+NS_ASSUME_NONNULL_END

mediapipe/tasks/ios/text/text_classifier/utils/sources/MPPTextClassifierOptions+Helpers.mm

@@ -0,0 +1,36 @@
+// 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.
+
+#include "mediapipe/tasks/cc/text/text_classifier/proto/text_classifier_graph_options.pb.h"
+#import "mediapipe/tasks/ios/components/processors/utils/sources/MPPClassifierOptions+Helpers.h"
+#import "mediapipe/tasks/ios/core/utils/sources/MPPBaseOptions+Helpers.h"
+#import "mediapipe/tasks/ios/text/text_classifier/utils/sources/MPPTextClassifierOptions+Helpers.h"
+
+namespace {
+using CalculatorOptionsProto = ::mediapipe::CalculatorOptions;
+using TextClassifierGraphOptionsProto =
+    ::mediapipe::tasks::text::text_classifier::proto::TextClassifierGraphOptions;
+
+}  // namespace
+
+@implementation MPPTextClassifierOptions (Helpers)
+
+- (void)copyToProto:(CalculatorOptionsProto *)optionsProto {
+  TextClassifierGraphOptionsProto *graph_options =
+      optionsProto->MutableExtension(TextClassifierGraphOptionsProto::ext);
+  [self.baseOptions copyToProto:graph_options->mutable_base_options()];
+  [self.classifierOptions copyToProto:graph_options->mutable_classifier_options()];
+}
+
+@end

mediapipe/tasks/ios/text/text_classifier/utils/sources/MPPTextClassifierResult+Helpers.h

@@ -0,0 +1,28 @@
+// 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/text/text_classifier/sources/MPPTextClassifierResult.h"
+
+#include "mediapipe/framework/packet.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface MPPTextClassifierResult (Helpers)
+
++ (MPPTextClassifierResult *)textClassifierResultWithClassificationsPacket:
+    (const mediapipe::Packet &)packet;
+
+@end
+
+NS_ASSUME_NONNULL_END

mediapipe/tasks/ios/text/text_classifier/utils/sources/MPPTextClassifierResult+Helpers.mm

@@ -0,0 +1,42 @@
+// 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/components/containers/utils/sources/MPPClassificationResult+Helpers.h"
+#import "mediapipe/tasks/ios/text/text_classifier/utils/sources/MPPTextClassifierResult+Helpers.h"
+
+#include "mediapipe/tasks/cc/components/containers/proto/classifications.pb.h"
+
+static const int kMicroSecondsPerMilliSecond = 1000;
+
+namespace {
+using ClassificationResultProto =
+    ::mediapipe::tasks::components::containers::proto::ClassificationResult;
+using ::mediapipe::Packet;
+}  // namespace
+
+#define int kMicroSecondsPerMilliSecond = 1000;
+
+@implementation MPPTextClassifierResult (Helpers)
+
++ (MPPTextClassifierResult *)textClassifierResultWithClassificationsPacket:(const Packet &)packet {
+  MPPClassificationResult *classificationResult = [MPPClassificationResult
+      classificationResultWithProto:packet.Get<ClassificationResultProto>()];
+
+  return [[MPPTextClassifierResult alloc]
+      initWithClassificationResult:classificationResult
+                       timestampMs:(NSInteger)(packet.Timestamp().Value() /
+                                               kMicroSecondsPerMilliSecond)];
+}
+
+@end