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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_H_ | 5 #ifndef CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_ |
| 6 #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_ | 6 #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_ |
| 7 | 7 |
| 8 #include <list> | 8 #include <list> |
| 9 #include <string> | 9 #include <string> |
| 10 #include <utility> | 10 #include <utility> |
| (...skipping 87 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 98 bool StartRecording(); | 98 bool StartRecording(); |
| 99 | 99 |
| 100 // Stops recording audio and starts recognition. | 100 // Stops recording audio and starts recognition. |
| 101 void StopRecording(); | 101 void StopRecording(); |
| 102 | 102 |
| 103 // Stops recording audio and cancels recognition. Any audio recorded so far | 103 // Stops recording audio and cancels recognition. Any audio recorded so far |
| 104 // gets discarded. | 104 // gets discarded. |
| 105 void CancelRecognition(); | 105 void CancelRecognition(); |
| 106 | 106 |
| 107 // AudioInputController::EventHandler methods. | 107 // AudioInputController::EventHandler methods. |
| 108 virtual void OnCreated(media::AudioInputController* controller) { } | 108 virtual void OnCreated(media::AudioInputController* controller) OVERRIDE { } |
| 109 virtual void OnRecording(media::AudioInputController* controller) { } | 109 virtual void OnRecording(media::AudioInputController* controller) OVERRIDE { } |
| 110 virtual void OnError(media::AudioInputController* controller, int error_code); | 110 virtual void OnError(media::AudioInputController* controller, |
| 111 int error_code) OVERRIDE; |
| 111 virtual void OnData(media::AudioInputController* controller, | 112 virtual void OnData(media::AudioInputController* controller, |
| 112 const uint8* data, | 113 const uint8* data, |
| 113 uint32 size); | 114 uint32 size) OVERRIDE; |
| 114 | 115 |
| 115 // SpeechRecognitionRequest::Delegate methods. | 116 // SpeechRecognitionRequest::Delegate methods. |
| 116 virtual void SetRecognitionResult(const SpeechInputResult& result); | 117 virtual void SetRecognitionResult(const SpeechInputResult& result) OVERRIDE; |
| 117 | 118 |
| 118 static const int kAudioSampleRate; | 119 static const int kAudioSampleRate; |
| 119 static const int kAudioPacketIntervalMs; // Duration of each audio packet. | 120 static const int kAudioPacketIntervalMs; // Duration of each audio packet. |
| 120 static const ChannelLayout kChannelLayout; | 121 static const ChannelLayout kChannelLayout; |
| 121 static const int kNumBitsPerAudioSample; | 122 static const int kNumBitsPerAudioSample; |
| 122 static const int kNoSpeechTimeoutSec; | 123 static const int kNoSpeechTimeoutSec; |
| 123 static const int kEndpointerEstimationTimeMs; | 124 static const int kEndpointerEstimationTimeMs; |
| 124 | 125 |
| 125 private: | 126 private: |
| 126 void InformErrorAndCancelRecognition(SpeechInputError error); | 127 void InformErrorAndCancelRecognition(SpeechInputError error); |
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| 153 | 154 |
| 154 // This typedef is to workaround the issue with certain versions of | 155 // This typedef is to workaround the issue with certain versions of |
| 155 // Visual Studio where it gets confused between multiple Delegate | 156 // Visual Studio where it gets confused between multiple Delegate |
| 156 // classes and gives a C2500 error. (I saw this error on the try bots - | 157 // classes and gives a C2500 error. (I saw this error on the try bots - |
| 157 // the workaround was not needed for my machine). | 158 // the workaround was not needed for my machine). |
| 158 typedef SpeechRecognizer::Delegate SpeechRecognizerDelegate; | 159 typedef SpeechRecognizer::Delegate SpeechRecognizerDelegate; |
| 159 | 160 |
| 160 } // namespace speech_input | 161 } // namespace speech_input |
| 161 | 162 |
| 162 #endif // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_ | 163 #endif // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_ |
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