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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 [DartPackage="mojo_services", JavaPackage="org.chromium.mojo.speech_recognizer"] | 5 [DartPackage="mojo_services", |
| 6 JavaPackage="org.chromium.mojo.speech_recognizer"] |
| 6 module speech_recognizer; | 7 module speech_recognizer; |
| 7 | 8 |
| 8 enum Error { | 9 enum Error { |
| 9 NETWORK_TIMEOUT = 1, | 10 NETWORK_TIMEOUT = 1, |
| 10 NETWORK = 2, | 11 NETWORK = 2, |
| 11 AUDIO = 3, | 12 AUDIO = 3, |
| 12 SERVER = 4, | 13 SERVER = 4, |
| 13 CLIENT = 5, | 14 CLIENT = 5, |
| 14 SPEECH_TIMEOUT = 6, | 15 SPEECH_TIMEOUT = 6, |
| 15 NO_MATCH = 7, | 16 NO_MATCH = 7, |
| 16 RECOGNIZER_BUSY = 8, | 17 RECOGNIZER_BUSY = 8, |
| 17 INSUFFICIENT_PERMISSIONS = 9 | 18 INSUFFICIENT_PERMISSIONS = 9, |
| 18 }; | 19 }; |
| 19 | 20 |
| 20 struct UtteranceCandidate { | 21 struct UtteranceCandidate { |
| 21 // Utterance text candidate returned by speech recognition service. | 22 // Utterance text candidate returned by speech recognition service. |
| 22 string text; | 23 string text; |
| 23 | 24 |
| 24 // Confidence score in [0,1]. | 25 // Confidence score in [0,1]. |
| 25 float confidence_score; | 26 float confidence_score; |
| 26 }; | 27 }; |
| 27 | 28 |
| 28 union ResultOrError { | 29 union ResultOrError { |
| 29 Error error_code; | 30 Error error_code; |
| 30 array<UtteranceCandidate> results; | 31 array<UtteranceCandidate> results; |
| 31 }; | 32 }; |
| 32 | 33 |
| 33 // |SpeechRecognizerService| provides access to a speech recognition service. | 34 // |SpeechRecognizerService| provides access to a speech recognition service. |
| 34 // It is responsible for reading microphone input, deciding when the user is | 35 // It is responsible for reading microphone input, deciding when the user is |
| 35 // done speaking, and performing speech recognition on the result. | 36 // done speaking, and performing speech recognition on the result. |
| 36 [ServiceName="speech_recognizer::SpeechRecognizerService"] | 37 [ServiceName="speech_recognizer::SpeechRecognizerService"] |
| 37 interface SpeechRecognizerService { | 38 interface SpeechRecognizerService { |
| 38 // Starts listening to the user. When listening has finished or an error | 39 // Starts listening to the user. When listening has finished or an error |
| 39 // occurs, returns |result_or_error|. Any call to Listen() made while another | 40 // occurs, returns |result_or_error|. Any call to Listen() made while another |
| 40 // is in progress will immediately return an error. | 41 // is in progress will immediately return an error. |
| 41 Listen() => (ResultOrError result_or_error); | 42 Listen() => (ResultOrError result_or_error); |
| 42 | 43 |
| 43 // Stops the SpeechRecognizer from listening and finishes any previous call | 44 // Stops the SpeechRecognizer from listening and finishes any previous call |
| 44 // to Listen() causing it to return. | 45 // to Listen() causing it to return. |
| 45 StopListening(); | 46 StopListening(); |
| 46 }; | 47 }; |
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