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Change to use dedicated speech recognition engine instead of shared

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This commit is contained in:
David Rowe 2014-10-22 14:35:09 -07:00
parent 375c71d2ef
commit e514f345e1
2 changed files with 29 additions and 2 deletions

30
interface/src/SpeechRecognizer.cpp
View file

@ -12,6 +12,8 @@
#include <QtGlobal>
#include <QDebug>
#include <sphelper.h>
#include "SpeechRecognizer.h"
#ifdef Q_OS_WIN
@ -21,6 +23,7 @@ SpeechRecognizer::SpeechRecognizer() :
_enabled(false),
_commands(),
_comInitialized(false),
_speechRecognizer(NULL),
_speechRecognizerContext(NULL),
_speechRecognizerGrammar(NULL),
_commandRecognizedEvent(NULL),
@ -43,6 +46,7 @@ SpeechRecognizer::~SpeechRecognizer() {
if (_enabled) {
_speechRecognizerContext.Release();
_speechRecognizer.Release();
}
if (_comInitialized) {
@ -65,9 +69,27 @@ void SpeechRecognizer::setEnabled(bool enabled) {
HRESULT hr = S_OK;
// Create a shared recognizer.
// Set up dedicated recognizer instead of using shared Windows recognizer.
// - By default, shared recognizer's commands like "move left" override any added here.
// - Unless do SetGrammarState(SPGS_EXCLUSIVE) on shared recognizer but then non-Interface commands don't work at all.
// - With dedicated recognizer, user can choose whether to have Windows recognizer running in addition to Interface's.
if (SUCCEEDED(hr)) {
hr = _speechRecognizerContext.CoCreateInstance(CLSID_SpSharedRecoContext);
hr = _speechRecognizer.CoCreateInstance(CLSID_SpInprocRecognizer);
}
if (SUCCEEDED(hr))
{
CComPtr<ISpObjectToken> cpAudioToken;
hr = SpGetDefaultTokenFromCategoryId(SPCAT_AUDIOIN, &cpAudioToken);
if (SUCCEEDED(hr))
{
hr = _speechRecognizer->SetInput(cpAudioToken, TRUE);
}
}
if (SUCCEEDED(hr)) {
hr = _speechRecognizer->CreateRecoContext(&_speechRecognizerContext);
if (FAILED(hr)) {
_speechRecognizer.Release();
}
}
// Set up event notification mechanism.
@ -99,9 +121,13 @@ void SpeechRecognizer::setEnabled(bool enabled) {
_enabled = SUCCEEDED(hr);
qDebug() << "Speech recognition" << (_enabled ? "enabled" : "enable failed");
} else {
_commandRecognizedNotifier->setEnabled(false);
_speechRecognizerContext.Release();
_speechRecognizer.Release();
qDebug() << "Speech recognition disabled";
}
emit enabledUpdated(_enabled);

1
interface/src/SpeechRecognizer.h
View file

@ -52,6 +52,7 @@ private:
void* _speechRecognizer;
#elif defined(Q_OS_WIN)
bool _comInitialized;
CComPtr<ISpRecognizer> _speechRecognizer;
CComPtr<ISpRecoContext> _speechRecognizerContext;
CComPtr<ISpRecoGrammar> _speechRecognizerGrammar;
HANDLE _commandRecognizedEvent;