1 // Copyright 2018 Google Inc. All rights reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at: 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #import "tensorflow/lite/experimental/objc/apis/TFLInterpreter.h" 16 17 @class TFLTensor; 18 19 NS_ASSUME_NONNULL_BEGIN 20 21 @interface TFLInterpreter (Internal) 22 23 /** 24 * Copies the given data into the input tensor at the given index. This is allowed only before the 25 * interpreter is invoked. 26 * 27 * @param data The data to set. The byte size of the data must match what's required by the input 28 * tensor at the given index. 29 * @param index An input tensor index. 30 * @param error An optional error parameter populated when there is an error in setting the data. 31 * 32 * @return Whether the data was copied into the input tensor at the given index successfully. 33 * Returns NO if an error occurred. 34 */ 35 - (BOOL)copyData:(NSData *)data toInputTensorAtIndex:(NSUInteger)index error:(NSError **)error; 36 37 /** 38 * Retrieves a copy of the data from the given tensor. For an output tensor, the interpreter 39 * invocation has to complete before the data can be retrieved. 40 * 41 * @param tensor A tensor. 42 * @param error An optional error parameter populated when there is an error in getting the data. 43 * 44 * @return The data of the given tensor. `nil` if there is an error or data is not available. 45 */ 46 - (nullable NSData *)dataFromTensor:(TFLTensor *)tensor error:(NSError **)error; 47 48 /** 49 * Retrieves the shape of the given tensor, an array of positive unsigned integer(s) containing the 50 * size of each dimension. For example: shape of [[[1, 1, 1], [2, 2, 2]], [[3, 3, 3], [4, 4, 4]]] is 51 * [2, 2, 3]. 52 * 53 * @param tensor An input or output tensor. 54 * @param error An optional error parameter populated when there is an error in retrieving the 55 * shape. 56 * 57 * @return The shape of the tensor. `nil` if there is an error in retrieving the shape. 58 */ 59 - (nullable NSArray<NSNumber *> *)shapeOfTensor:(TFLTensor *)tensor error:(NSError **)error; 60 61 @end 62 63 NS_ASSUME_NONNULL_END 64