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#include "stdafx.h"
#include "SpeechApi51.h"
#include "SpeechApi51Lexicon.h"
#include <sapi.h>
#include <sphelper.h>
#include <sstream>
#include <memory>
namespace
{
//------------------------------------------------------------------------------
// Description : implement callback
//------------------------------------------------------------------------------
/*class Sapi51Callback : public ISpNotifyCallback
{
public:
Sapi51Callback();
virtual STDMETHODIMP NotifyCallback(WPARAM wParam, LPARAM lParam)
{
return S_OK;
}
};*/
}
//------------------------------------------------------------------------------
SpeechApi51::SpeechApi51() : m_sapi(0), m_state(TextToSpeech::State_Unloaded), m_voice(L""), m_volume(50), m_pitch(50), m_rate(50)
{
}
//------------------------------------------------------------------------------
SpeechApi51::~SpeechApi51()
{
unload();
CoUninitialize();
}
//------------------------------------------------------------------------------
bool SpeechApi51::isAvailable()
{
CoInitialize(NULL);
ISpVoice *sapi;
bool ret = true;
if (FAILED(CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, reinterpret_cast<void **>(&sapi))))
{
ret = false;
}
else
{
sapi->Release();
}
return ret;
}
//------------------------------------------------------------------------------
bool SpeechApi51::load()
{
if (isLoaded())
{
return true;
}
CoInitialize(NULL);
if (FAILED(CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, reinterpret_cast<void **>(&m_sapi))))
{
return false;
}
m_state = TextToSpeech::State_Loaded;
// adjust the volume and rate settings
setVoice(m_voice);
setVolume(m_volume);
setRate(m_rate);
return true;
}
//------------------------------------------------------------------------------
bool SpeechApi51::unload()
{
if (isLoaded())
{
m_sapi->Release();
m_sapi = 0;
}
m_state = TextToSpeech::State_Unloaded;
return true;
}
//------------------------------------------------------------------------------
bool SpeechApi51::isLoaded() const
{
return (TextToSpeech::State_Loaded == m_state);
}
//------------------------------------------------------------------------------
bool SpeechApi51::say(const std::wstring &sentence)
{
if (!isLoaded())
{
return false;
}
// prepend the pitch setting
std::wstringstream output;
output << "<pitch middle='" << m_pitch << "'/> " << sentence;
const std::wstring& wstr = output.str(); // extends lifetime of temporary
const LPCWSTR p = wstr.c_str();
//std::auto_ptr<wchar_t> sapi_sentence(new wchar_t[output.str().size() + 1]);
//mbstowcs(sapi_sentence.get(), output.str().c_str(), output.str().size() + 1);
// speak the sentence
if (FAILED(m_sapi->Speak(p, SPF_IS_XML | SPF_ASYNC, NULL)))
{
return false;
}
return true;
}
//------------------------------------------------------------------------------
bool SpeechApi51::setVolume(int volume)
{
m_volume = volume;
if (isLoaded() && FAILED(m_sapi->SetVolume(volume)))
{
return false;
}
return true;
}
//------------------------------------------------------------------------------
bool SpeechApi51::setPitch(int pitch)
{
m_pitch = (pitch / 5) - 10;
return true;
}
//------------------------------------------------------------------------------
bool SpeechApi51::setRate(int rate)
{
m_rate = rate;
// convert it to the range -10 to 10
if (isLoaded() && FAILED(m_sapi->SetRate((rate / 5.0) - 10)))
{
return false;
}
return true;
}
//------------------------------------------------------------------------------
bool SpeechApi51::setVoice(const std::wstring &voice)
{
m_voice = voice;
if (!isLoaded())
{
return true;
}
// get a voice enumerator
CComPtr<IEnumSpObjectTokens> cpEnum;
if (FAILED(SpEnumTokens(SPCAT_VOICES, NULL, NULL, &cpEnum)))
{
return false;
}
// iterate through the list till we find a matching voice
ISpObjectToken *voice_token;
while (S_OK == cpEnum->Next(1, &voice_token, NULL))
{
CSpDynamicString voice_str;
if (SUCCEEDED(SpGetDescription(voice_token, &voice_str))
&& (voice == voice_str.Copy()))
{
m_sapi->SetVoice(voice_token);
return true;
}
}
return false;
}
//------------------------------------------------------------------------------
std::vector<std::wstring> SpeechApi51::getVoices() const
{
std::vector<std::wstring> ret;
CoInitialize(NULL);
// get a voice enumerator
CComPtr<IEnumSpObjectTokens> cpEnum;
if (S_OK != SpEnumTokens(SPCAT_VOICES, NULL, NULL, &cpEnum))
{
return ret;
}
// iterate through the voices and add them to the string vector
ISpObjectToken *voice_token;
while (S_OK == cpEnum->Next(1, &voice_token, NULL))
{
CSpDynamicString voice_str;
if (SUCCEEDED(SpGetDescription(voice_token, &voice_str)))
{
ret.push_back(voice_str.Copy());
}
}
return ret;
}
//------------------------------------------------------------------------------
bool SpeechApi51::lexiconDialog(HWND window)
{
// open the dialog
SpeechApi51Lexicon dialog(window);
if (!dialog.display())
{
return false;
}
return true;
}
//------------------------------------------------------------------------------
std::wstring SpeechApi51::getDescription()
{
return L"Microsoft SAPI v5.1";
}
//------------------------------------------------------------------------------
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