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// Copyright (c) 2013 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_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_
#define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "content/common/content_export.h"
namespace content {
class SpeechRecognitionEventListener;
// Handles speech recognition for a session (identified by |session_id|).
class CONTENT_EXPORT SpeechRecognizer
: public base::RefCountedThreadSafe<SpeechRecognizer> {
public:
SpeechRecognizer(SpeechRecognitionEventListener* listener, int session_id)
: listener_(listener), session_id_(session_id) {
DCHECK(listener_);
}
virtual void StartRecognition(const std::string& device_id) = 0;
virtual void AbortRecognition() = 0;
virtual void StopAudioCapture() = 0;
virtual bool IsActive() const = 0;
virtual bool IsCapturingAudio() const = 0;
protected:
friend class base::RefCountedThreadSafe<SpeechRecognizer>;
virtual ~SpeechRecognizer() {}
SpeechRecognitionEventListener* listener() const { return listener_; }
int session_id() const { return session_id_; }
private:
SpeechRecognitionEventListener* listener_;
int session_id_;
DISALLOW_COPY_AND_ASSIGN(SpeechRecognizer);
};
} // namespace content
#endif // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_
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