73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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==============================================================================*/
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#ifndef TENSORFLOW_LITE_TOOLS_OPTIMIZE_CALIBRATION_CALIBRATION_LOGGER_H_
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#define TENSORFLOW_LITE_TOOLS_OPTIMIZE_CALIBRATION_CALIBRATION_LOGGER_H_
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#include <limits>
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#include <unordered_map>
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#include "tensorflow/lite/c/common.h"
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#include "tensorflow/lite/core/api/error_reporter.h"
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namespace tflite {
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namespace optimize {
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namespace calibration {
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class MinMax {
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public:
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TfLiteStatus Update(const float* values, size_t tensor_size,
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ErrorReporter* error_reporter);
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bool HasValues() const { return has_values_; }
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TfLiteStatus Get(float* min_val, float* max_val) const {
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if (!has_values_) return kTfLiteError;
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*min_val = min_;
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*max_val = max_;
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return kTfLiteOk;
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}
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private:
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bool has_values_ = false;
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float min_ = std::numeric_limits<float>::max();
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float max_ = std::numeric_limits<float>::min();
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};
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// Captures min max values for tensors.
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class Logger {
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public:
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// Log the value for tensor at |tensor_index| which has |tensor_values|
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TfLiteStatus LogTensorValue(int tensor_index, const float* tensor_values,
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size_t tensor_size,
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ErrorReporter* error_reporter) {
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return tensor_id_to_stats_map_[tensor_index].Update(
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tensor_values, tensor_size, error_reporter);
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}
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// Returns a map from tensor_index -> observed min max values.
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const std::unordered_map<int, MinMax>& GetCalibrationValues() const {
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return tensor_id_to_stats_map_;
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}
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private:
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std::unordered_map<int, MinMax> tensor_id_to_stats_map_;
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};
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} // namespace calibration
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} // namespace optimize
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} // namespace tflite
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#endif // TENSORFLOW_LITE_TOOLS_OPTIMIZE_CALIBRATION_CALIBRATION_LOGGER_H_
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