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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/learning/common/feature_dictionary.h"
namespace media {
namespace learning {
FeatureDictionary::FeatureDictionary() = default;
FeatureDictionary::~FeatureDictionary() = default;
void FeatureDictionary::Lookup(const LearningTask& task,
FeatureVector* features) const {
const size_t num_features = task.feature_descriptions.size();
if (features->size() < num_features)
features->resize(num_features);
for (size_t i = 0; i < num_features; i++) {
const auto& name = task.feature_descriptions[i].name;
auto entry = dictionary_.find(name);
if (entry == dictionary_.end())
continue;
// |name| appears in the dictionary, so add its value to |features|.
(*features)[i] = entry->second;
}
}
void FeatureDictionary::Add(const std::string& name,
const FeatureValue& value) {
dictionary_[name] = value;
}
} // namespace learning
} // namespace media
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