Added MPPEmbedding
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@ -28,3 +28,10 @@ objc_library(
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hdrs = ["sources/MPPClassificationResult.h"],
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deps = [":MPPCategory"],
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)
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objc_library(
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name = "MPPEmbedding",
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srcs = ["sources/MPPEmbedding.m"],
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hdrs = ["sources/MPPEmbedding.h"],
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)
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@ -0,0 +1,70 @@
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// Copyright 2023 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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/**
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* Represents the embedding for a given embedder head. Typically used in embedding tasks.
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*
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* One and only one of the two 'floatEmbedding' and 'quantizedEmbedding' will contain data, based on
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* whether or not the embedder was configured to perform scala quantization.
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*/
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NS_SWIFT_NAME(Embedding)
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@interface MPPEmbedding : NSObject
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/**
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* @brief The Floating-point embedding.
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* Empty if the embedder was configured to perform scalar quantization.
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*/
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@property(nonatomic, readonly, nullable) float *floatEmbedding;
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/**
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* @brief The Quantized embedding.
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* Empty if the embedder was not configured to perform scalar quantization.
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*/
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@property(nonatomic, readonly, nullable) char *quantizedEmbedding;
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/** The index of the embedder head these entries refer to. This is useful for multi-head models. */
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@property(nonatomic, readonly) NSInteger headIndex;
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/** The optional name of the embedder head, which is the corresponding tensor metadata name. */
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@property(nonatomic, readonly, nullable) NSString *headName;
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/**
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* Initializes a new `MPPEmbedding` with the given float embedding, quantized embedding, head index
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* and head name.
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*
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* @param floatEmbedding The optional Floating-point embedding.
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* @param quantizedEmbedding The optional Quantized embedding.
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* @param headIndex The index of the embedder head.
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* @param headName The optional name of the embedder head.
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*
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* @return An instance of `MPPEmbedding` initialized with the given float embedding, quantized
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* embedding, head index and head name.
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*
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*/
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- (instancetype)initWithFloatEmbedding:(nullable float *)floatEmbedding
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quantizedEmbedding:(nullable char *)quantizedEmbedding
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headIndex:(NSInteger)headIndex
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headName:(nullable NSString *)headName NS_DESIGNATED_INITIALIZER;
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- (instancetype)init NS_UNAVAILABLE;
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+ (instancetype)new NS_UNAVAILABLE;
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@end
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NS_ASSUME_NONNULL_END
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@ -0,0 +1,34 @@
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// Copyright 2023 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#import "mediapipe/tasks/ios/components/containers/sources/MPPEmbedding.h"
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@implementation MPPEmbedding
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- (instancetype)initWithFloatEmbedding:(nullable float *)floatEmbedding
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quantizedEmbedding:(nullable char *)quantizedEmbedding
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headIndex:(NSInteger)headIndex
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headName:(nullable NSString *)headName {
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// TODO: Should null check for embeddings be done here ?
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self = [super init];
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if (self) {
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_headIndex = headIndex;
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_headName = headName;
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_floatEmbedding = floatEmbedding;
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_quantizedEmbedding = quantizedEmbedding;
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}
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return self;
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}
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@end
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