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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 #include "content/browser/speech/speech_recognizer_impl.h" | 5 #include "content/browser/speech/speech_recognizer_impl.h" |
6 | 6 |
7 #include "base/basictypes.h" | 7 #include "base/basictypes.h" |
8 #include "base/bind.h" | 8 #include "base/bind.h" |
9 #include "base/time/time.h" | 9 #include "base/time/time.h" |
10 #include "content/browser/browser_main_loop.h" | 10 #include "content/browser/browser_main_loop.h" |
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99 } // namespace | 99 } // namespace |
100 | 100 |
101 const int SpeechRecognizerImpl::kAudioSampleRate = 16000; | 101 const int SpeechRecognizerImpl::kAudioSampleRate = 16000; |
102 const ChannelLayout SpeechRecognizerImpl::kChannelLayout = | 102 const ChannelLayout SpeechRecognizerImpl::kChannelLayout = |
103 media::CHANNEL_LAYOUT_MONO; | 103 media::CHANNEL_LAYOUT_MONO; |
104 const int SpeechRecognizerImpl::kNumBitsPerAudioSample = 16; | 104 const int SpeechRecognizerImpl::kNumBitsPerAudioSample = 16; |
105 const int SpeechRecognizerImpl::kNoSpeechTimeoutMs = 8000; | 105 const int SpeechRecognizerImpl::kNoSpeechTimeoutMs = 8000; |
106 const int SpeechRecognizerImpl::kEndpointerEstimationTimeMs = 300; | 106 const int SpeechRecognizerImpl::kEndpointerEstimationTimeMs = 300; |
107 media::AudioManager* SpeechRecognizerImpl::audio_manager_for_tests_ = NULL; | 107 media::AudioManager* SpeechRecognizerImpl::audio_manager_for_tests_ = NULL; |
108 | 108 |
109 COMPILE_ASSERT(SpeechRecognizerImpl::kNumBitsPerAudioSample % 8 == 0, | 109 static_assert(SpeechRecognizerImpl::kNumBitsPerAudioSample % 8 == 0, |
110 kNumBitsPerAudioSample_must_be_a_multiple_of_8); | 110 "kNumBitsPerAudioSample must be a multiple of 8"); |
111 | 111 |
112 // SpeechRecognizerImpl::OnDataConverter implementation | 112 // SpeechRecognizerImpl::OnDataConverter implementation |
113 | 113 |
114 SpeechRecognizerImpl::OnDataConverter::OnDataConverter( | 114 SpeechRecognizerImpl::OnDataConverter::OnDataConverter( |
115 const AudioParameters& input_params, | 115 const AudioParameters& input_params, |
116 const AudioParameters& output_params) | 116 const AudioParameters& output_params) |
117 : audio_converter_(input_params, output_params, false), | 117 : audio_converter_(input_params, output_params, false), |
118 input_bus_(AudioBus::Create(input_params)), | 118 input_bus_(AudioBus::Create(input_params)), |
119 output_bus_(AudioBus::Create(output_params)), | 119 output_bus_(AudioBus::Create(output_params)), |
120 input_parameters_(input_params), | 120 input_parameters_(input_params), |
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809 SpeechRecognizerImpl::FSMEventArgs::FSMEventArgs(FSMEvent event_value) | 809 SpeechRecognizerImpl::FSMEventArgs::FSMEventArgs(FSMEvent event_value) |
810 : event(event_value), | 810 : event(event_value), |
811 audio_data(NULL), | 811 audio_data(NULL), |
812 engine_error(SPEECH_RECOGNITION_ERROR_NONE) { | 812 engine_error(SPEECH_RECOGNITION_ERROR_NONE) { |
813 } | 813 } |
814 | 814 |
815 SpeechRecognizerImpl::FSMEventArgs::~FSMEventArgs() { | 815 SpeechRecognizerImpl::FSMEventArgs::~FSMEventArgs() { |
816 } | 816 } |
817 | 817 |
818 } // namespace content | 818 } // namespace content |
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