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// Copyright (c) 2012 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.
#ifndef CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNIZER_H_
#define CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNIZER_H_
#include <string>
#include "base/memory/ref_counted.h"
#include "content/common/content_export.h"
namespace net {
class URLRequestContextGetter;
}
namespace content {
class SpeechRecognizerDelegate;
// Records audio, sends recorded audio to server and translates server response
// to recognition result.
class SpeechRecognizer : public base::RefCountedThreadSafe<SpeechRecognizer> {
public:
CONTENT_EXPORT static SpeechRecognizer* Create(
SpeechRecognizerDelegate* delegate,
int caller_id,
const std::string& language,
const std::string& grammar,
net::URLRequestContextGetter* context_getter,
bool filter_profanities,
const std::string& hardware_info,
const std::string& origin_url);
virtual ~SpeechRecognizer() {}
// Starts audio recording and does recognition after recording ends. The same
// SpeechRecognizer instance can be used multiple times for speech recognition
// though each recognition request can be made only after the previous one
// completes (i.e. after receiving
// SpeechRecognizerDelegate::DidCompleteRecognition).
virtual bool StartRecording() = 0;
// Stops recording audio and cancels recognition. Any audio recorded so far
// gets discarded.
virtual void CancelRecognition() = 0;
};
} // namespace speech
#endif // CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNIZER_H_
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