Added MPPEmbeddingResultHelpers

mediapipe/tasks/ios/components/containers/utils/BUILD

@@ -49,3 +49,15 @@ objc_library(
         "//mediapipe/tasks/ios/components/containers:MPPEmbedding",
     ]
 )
+
+objc_library(
+    name = "MPPEmbeddingResultHelpers",
+    srcs = ["sources/MPPEmbeddingResult+Helpers.mm"],
+    hdrs = ["sources/MPPEmbeddingResult+Helpers.h"],
+    deps = [
+        ":MPPEmbeddingHelpers",
+        "//mediapipe/tasks/cc/components/containers/proto:embeddings_cc_proto",
+        "//mediapipe/tasks/ios/common/utils:NSStringHelpers",
+        "//mediapipe/tasks/ios/components/containers:MPPEmbeddingResult",
+    ],
+)

mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+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.
+
+#include "mediapipe/tasks/cc/components/containers/proto/embeddings.pb.h"
+#import "mediapipe/tasks/ios/components/containers/sources/MPPEmbeddingResult.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface MPPEmbeddingResult (Helpers)
+
++ (MPPEmbeddingResult *)embeddingResultWithProto:(const ::mediapipe::tasks::components::containers::proto::EmbeddingResult &)embeddingResultProto;
+
+@end
+
+NS_ASSUME_NONNULL_END

mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+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/MPPEmbeddingResult+Helpers.h"
+
+#import "mediapipe/tasks/ios/common/utils/sources/NSString+Helpers.h"
+#import "mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbedding+Helpers.h"
+
+namespace {
+using EmbeddingResultProto = ::mediapipe::tasks::components::containers::proto::EmbeddingResult;
+}
+
+@implementation MPPEmbeddingResult (Helpers)
+
++ (MPPEmbeddingResult *)embeddingResultWithProto:(const EmbeddingResultProto &)embeddingResultProto {
+  NSMutableArray *embeddings = [NSMutableArray
+      arrayWithCapacity:(NSUInteger)embeddingResultProto.embeddings_size()];
+  for (const auto &embeddingProto : embeddingResultProto.embeddings()) {
+    [embeddings addObject:[MPPEmbedding embeddingWithProto:embeddingProto]];
+  }
+
+  NSInteger timestampMs = 0;
+  if (embeddingResultProto.has_timestamp_ms()) {
+    timestampMs = (NSInteger)embeddingResultProto.timestamp_ms();
+  }
+
+  return [[MPPEmbeddingResult alloc] initWithEmbeddings:embeddings
+                                                      timestampMs:timestampMs];
+}
+
+@end