1 | /* Copyright 2020 The TensorFlow Authors. 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 | #ifndef TENSORFLOW_CORE_DATA_COMPRESSION_UTILS_H_ |
16 | #define TENSORFLOW_CORE_DATA_COMPRESSION_UTILS_H_ |
17 | |
18 | #include "tensorflow/core/common_runtime/dma_helper.h" |
19 | #include "tensorflow/core/data/dataset.pb.h" |
20 | #include "tensorflow/core/platform/status.h" |
21 | |
22 | namespace tensorflow { |
23 | namespace data { |
24 | |
25 | // Compresses the components of `element` into the `CompressedElement` proto. |
26 | // |
27 | // In addition to writing the actual compressed bytes, `Compress` fills |
28 | // out the per-component metadata for the `CompressedElement`. |
29 | // |
30 | // Returns an error if the uncompressed size of the element exceeds 4GB. |
31 | Status CompressElement(const std::vector<Tensor>& element, |
32 | CompressedElement* out); |
33 | |
34 | // Uncompresses a `CompressedElement` into a vector of tensor components. |
35 | Status UncompressElement(const CompressedElement& compressed, |
36 | std::vector<Tensor>* out); |
37 | |
38 | } // namespace data |
39 | } // namespace tensorflow |
40 | |
41 | #endif // TENSORFLOW_CORE_DATA_COMPRESSION_UTILS_H_ |
42 | |