metadata_extractor.cc | Explore in Territory

/* Copyright 2022 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/metadata/metadata_extractor.h"

#include <string>

#include "absl/cleanup/cleanup.h"
#include "absl/memory/memory.h"
#include "absl/status/status.h"
#include "absl/strings/match.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/str_format.h"
#include "absl/strings/string_view.h"
#include "flatbuffers/flatbuffers.h"
#include "mediapipe/framework/port/status_macros.h"
#include "mediapipe/tasks/cc/common.h"
#include "mediapipe/tasks/cc/metadata/metadata_parser.h"
#include "mediapipe/tasks/cc/metadata/metadata_version_utils.h"
#include "mediapipe/tasks/cc/metadata/utils/zip_utils.h"
#include "mediapipe/tasks/metadata/metadata_schema_generated.h"
#include "tensorflow/lite/schema/schema_generated.h"

namespace mediapipe {
namespace tasks {
namespace metadata {

namespace {
constexpr char kMetadataBufferName[] = …;

StatusCode;
Offset;
Vector;
CreateStatusWithPayload;
MediaPipeTasksStatus;
TensorMetadata;

// Util to get item from src_vector specified by index.
template <typename T>
const T* GetItemFromVector(
    const flatbuffers::Vector<flatbuffers::Offset<T>>* src_vector, int index) { … }
}  // namespace

/* static */
absl::StatusOr<std::unique_ptr<ModelMetadataExtractor>>
ModelMetadataExtractor::CreateFromModelBuffer(const char* buffer_data,
                                              size_t buffer_size) { … }

/* static */
absl::StatusOr<const tflite::ProcessUnit*>
ModelMetadataExtractor::FindFirstProcessUnit(
    const tflite::TensorMetadata& tensor_metadata,
    tflite::ProcessUnitOptions type) { … }

/* static */
std::string ModelMetadataExtractor::FindFirstAssociatedFileName(
    const tflite::TensorMetadata& tensor_metadata,
    tflite::AssociatedFileType type, absl::string_view locale) { … }

absl::Status ModelMetadataExtractor::InitFromModelBuffer(
    const char* buffer_data, size_t buffer_size) { … }

absl::Status ModelMetadataExtractor::ExtractAssociatedFiles(
    const char* buffer_data, size_t buffer_size) { … }

absl::StatusOr<absl::string_view> ModelMetadataExtractor::GetAssociatedFile(
    const std::string& filename) const { … }

absl::StatusOr<std::string> ModelMetadataExtractor::GetModelVersion() const { … }

const flatbuffers::Vector<flatbuffers::Offset<tflite::TensorMetadata>>*
ModelMetadataExtractor::GetInputTensorMetadata() const { … }

const tflite::TensorMetadata* ModelMetadataExtractor::GetInputTensorMetadata(
    int index) const { … }

int ModelMetadataExtractor::GetInputTensorCount() const { … }

const Vector<Offset<TensorMetadata>>*
ModelMetadataExtractor::GetOutputTensorMetadata() const { … }

const tflite::TensorMetadata* ModelMetadataExtractor::GetOutputTensorMetadata(
    int index) const { … }

int ModelMetadataExtractor::GetOutputTensorCount() const { … }

const Vector<flatbuffers::Offset<tflite::ProcessUnit>>*
ModelMetadataExtractor::GetInputProcessUnits() const { … }

const tflite::ProcessUnit* ModelMetadataExtractor::GetInputProcessUnit(
    int index) const { … }

int ModelMetadataExtractor::GetInputProcessUnitsCount() const { … }

const Vector<flatbuffers::Offset<tflite::ProcessUnit>>*
ModelMetadataExtractor::GetOutputProcessUnits() const { … }

const tflite::ProcessUnit* ModelMetadataExtractor::GetOutputProcessUnit(
    int index) const { … }

int ModelMetadataExtractor::GetOutputProcessUnitsCount() const { … }

const flatbuffers::Vector<flatbuffers::Offset<tflite::CustomMetadata>>*
ModelMetadataExtractor::GetCustomMetadataList() const { … }

const tflite::CustomMetadata* ModelMetadataExtractor::GetCustomMetadata(
    int index) const { … }

int ModelMetadataExtractor::GetCustomMetadataCount() const { … }

}  // namespace metadata
}  // namespace tasks
}  // namespace mediapipe
chromium/third_party/mediapipe/src/mediapipe/tasks/cc/metadata/metadata_extractor.cc
