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// Copyright 2016 The Cobalt Authors. All Rights Reserved.
//
// 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.
#ifndef COBALT_SPEECH_SPEECH_RECOGNITION_ALTERNATIVE_H_
#define COBALT_SPEECH_SPEECH_RECOGNITION_ALTERNATIVE_H_
#include <string>
#include "base/basictypes.h"
#include "cobalt/script/wrappable.h"
namespace cobalt {
namespace speech {
// The SpeechRecognitionAlternative represents a simple view of the response
// that gets used in a n-best list.
// https://dvcs.w3.org/hg/speech-api/raw-file/9a0075d25326/speechapi.html#speechreco-alternative
class SpeechRecognitionAlternative : public script::Wrappable {
public:
struct Data {
// The transcript string represents the raw words that the user spoke.
std::string transcript;
// The confidence represents a numeric estimate between 0 and 1 of how
// confident the recognition system is that the recognition is correct. A
// higher number means the system is more confident.
float confidence;
};
SpeechRecognitionAlternative(const std::string& transcript, float confidence)
: data_({transcript, confidence}) {}
explicit SpeechRecognitionAlternative(Data&& data) : data_(std::move(data)) {}
const std::string& transcript() const { return data_.transcript; }
float confidence() const { return data_.confidence; }
DEFINE_WRAPPABLE_TYPE(SpeechRecognitionAlternative);
private:
~SpeechRecognitionAlternative() override {}
const Data data_;
DISALLOW_COPY_AND_ASSIGN(SpeechRecognitionAlternative);
};
} // namespace speech
} // namespace cobalt
#endif // COBALT_SPEECH_SPEECH_RECOGNITION_ALTERNATIVE_H_