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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_IMPL_H_ | 5 #ifndef CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_IMPL_H_ |
6 #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_IMPL_H_ | 6 #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_IMPL_H_ |
7 | 7 |
8 #include <list> | 8 #include <list> |
9 #include <utility> | 9 #include <utility> |
10 | 10 |
11 #include "base/compiler_specific.h" | 11 #include "base/compiler_specific.h" |
12 #include "base/memory/scoped_ptr.h" | 12 #include "base/memory/scoped_ptr.h" |
13 #include "content/browser/speech/audio_encoder.h" | 13 #include "content/browser/speech/audio_encoder.h" |
14 #include "content/browser/speech/endpointer/endpointer.h" | 14 #include "content/browser/speech/endpointer/endpointer.h" |
15 #include "content/browser/speech/speech_recognition_request.h" | 15 #include "content/browser/speech/speech_recognition_request.h" |
16 #include "content/public/browser/speech_recognizer.h" | 16 #include "content/public/browser/speech_recognizer.h" |
17 #include "content/public/common/speech_recognition_result.h" | 17 #include "content/public/common/speech_recognition_result.h" |
18 #include "media/audio/audio_input_controller.h" | 18 #include "media/audio/audio_input_controller.h" |
19 | 19 |
20 class AudioManager; | |
21 | |
22 namespace content { | 20 namespace content { |
23 class SpeechRecognitionEventListener; | 21 class SpeechRecognitionEventListener; |
24 } | 22 } |
25 | 23 |
| 24 namespace media { |
| 25 class AudioManager; |
| 26 } |
| 27 |
26 namespace speech { | 28 namespace speech { |
27 | 29 |
28 // Records audio, sends recorded audio to server and translates server response | 30 // Records audio, sends recorded audio to server and translates server response |
29 // to recognition result. | 31 // to recognition result. |
30 class CONTENT_EXPORT SpeechRecognizerImpl | 32 class CONTENT_EXPORT SpeechRecognizerImpl |
31 : NON_EXPORTED_BASE(public content::SpeechRecognizer), | 33 : NON_EXPORTED_BASE(public content::SpeechRecognizer), |
32 public media::AudioInputController::EventHandler, | 34 public media::AudioInputController::EventHandler, |
33 public SpeechRecognitionRequestDelegate { | 35 public SpeechRecognitionRequestDelegate { |
34 public: | 36 public: |
35 static const int kAudioSampleRate; | 37 static const int kAudioSampleRate; |
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78 void SendRecordedAudioToServer(); | 80 void SendRecordedAudioToServer(); |
79 | 81 |
80 void HandleOnError(int error_code); // Handles OnError in the IO thread. | 82 void HandleOnError(int error_code); // Handles OnError in the IO thread. |
81 | 83 |
82 // Handles OnData in the IO thread. Takes ownership of |raw_audio|. | 84 // Handles OnData in the IO thread. Takes ownership of |raw_audio|. |
83 void HandleOnData(AudioChunk* raw_audio); | 85 void HandleOnData(AudioChunk* raw_audio); |
84 | 86 |
85 // Helper method which closes the audio controller and blocks until done. | 87 // Helper method which closes the audio controller and blocks until done. |
86 void CloseAudioControllerSynchronously(); | 88 void CloseAudioControllerSynchronously(); |
87 | 89 |
88 void SetAudioManagerForTesting(AudioManager* audio_manager); | 90 void SetAudioManagerForTesting(media::AudioManager* audio_manager); |
89 | 91 |
90 content::SpeechRecognitionEventListener* listener_; | 92 content::SpeechRecognitionEventListener* listener_; |
91 int caller_id_; | 93 int caller_id_; |
92 std::string language_; | 94 std::string language_; |
93 std::string grammar_; | 95 std::string grammar_; |
94 bool filter_profanities_; | 96 bool filter_profanities_; |
95 std::string hardware_info_; | 97 std::string hardware_info_; |
96 std::string origin_url_; | 98 std::string origin_url_; |
97 | 99 |
98 scoped_ptr<SpeechRecognitionRequest> request_; | 100 scoped_ptr<SpeechRecognitionRequest> request_; |
99 scoped_refptr<media::AudioInputController> audio_controller_; | 101 scoped_refptr<media::AudioInputController> audio_controller_; |
100 scoped_refptr<net::URLRequestContextGetter> context_getter_; | 102 scoped_refptr<net::URLRequestContextGetter> context_getter_; |
101 AudioEncoder::Codec codec_; | 103 AudioEncoder::Codec codec_; |
102 scoped_ptr<AudioEncoder> encoder_; | 104 scoped_ptr<AudioEncoder> encoder_; |
103 Endpointer endpointer_; | 105 Endpointer endpointer_; |
104 int num_samples_recorded_; | 106 int num_samples_recorded_; |
105 float audio_level_; | 107 float audio_level_; |
106 AudioManager* audio_manager_; | 108 media::AudioManager* audio_manager_; |
107 | 109 |
108 DISALLOW_COPY_AND_ASSIGN(SpeechRecognizerImpl); | 110 DISALLOW_COPY_AND_ASSIGN(SpeechRecognizerImpl); |
109 }; | 111 }; |
110 | 112 |
111 } // namespace speech | 113 } // namespace speech |
112 | 114 |
113 #endif // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_IMPL_H_ | 115 #endif // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_IMPL_H_ |
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