/* MMDAgent_chdir: change current directory */
bool MMDAgent_chdir(const char *dir)
{
#ifdef _WIN32
return SetCurrentDirectoryA(dir) != 0 ? true : false;
#else
bool result;
char *path;
path = MMDAgent_pathdup(dir);
result = chdir(path) == 0 ? true : false;
free(path);
return result;
#endif /* _WIN32 */
}
static bool Audio_openAndStart(Audio *audio, const char *alias, char *file)
{
UInt32 size;
OSStatus err1;
OSErr err2;
ComponentResult err3;
char *buff;
FSRef path;
AudioStreamBasicDescription format;
ComponentDescription findComp;
Component comp;
AURenderCallbackStruct input;
buff = MMDAgent_pathdup(file);
/* convert file name */
err1 = FSPathMakeRef ((const UInt8 *) buff, &path, NULL);
free(buff);
if(err1) {
return false;
}
/* open audio file */
err1 = ExtAudioFileOpen(&path, &audio->file);
if(err1) {
return false;
}
/* get audio file format */
size = sizeof(AudioStreamBasicDescription);
err1 = ExtAudioFileGetProperty(audio->file, kExtAudioFileProperty_FileDataFormat, &size, &format);
if(err1) {
ExtAudioFileDispose(audio->file);
return false;
}
/* convert audio format to pcm (32bit stereo with the same sampling rate) */
format.mSampleRate = format.mSampleRate;
format.mFormatID = kAudioFormatLinearPCM;
format.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
format.mBytesPerPacket = 4 * 2;
format.mFramesPerPacket = 1;
format.mBytesPerFrame = 4 * 2;
format.mChannelsPerFrame = 2;
format.mBitsPerChannel = 32;
format.mReserved = format.mReserved;
size = sizeof(AudioStreamBasicDescription);
err1 = ExtAudioFileSetProperty(audio->file, kExtAudioFileProperty_ClientDataFormat, size, &format);
if(err1) {
ExtAudioFileDispose(audio->file);
return false;
}
/* open audio device */
findComp.componentType = kAudioUnitType_Output;
findComp.componentSubType = kAudioUnitSubType_DefaultOutput;
findComp.componentManufacturer = kAudioUnitManufacturer_Apple;
findComp.componentFlags = 0;
findComp.componentFlagsMask = 0;
comp = FindNextComponent(NULL, &findComp);
if(comp == 0) {
ExtAudioFileDispose(audio->file);
return false;
}
err2 = OpenAComponent(comp, &audio->device);
if(err2) {
ExtAudioFileDispose(audio->file);
return false;
}
/* set callback func. */
input.inputProc = renderCallback;
input.inputProcRefCon = audio;
size = sizeof(AURenderCallbackStruct);
err3 = AudioUnitSetProperty(audio->device, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, 0, &input, size);
if(err3) {
CloseComponent(audio->device);
ExtAudioFileDispose(audio->file);
return false;
}
/* prepare audio device */
err3 = AudioUnitInitialize(audio->device);
if(err3) {
CloseComponent(audio->device);
ExtAudioFileDispose(audio->file);
return false;
}
/* start */
err3 = AudioOutputUnitStart(audio->device);
if(err3) {
AudioUnitUninitialize(audio->device);
CloseComponent(audio->device);
ExtAudioFileDispose(audio->file);
return false;
}
return true;
}
/* Julius_Thread::run: main loop */
void Julius_Thread::run()
{
char *tmp;
char buff[MMDAGENT_MAXBUFLEN];
FILE *fp;
if(m_jconf != NULL || m_recog != NULL || m_mmdagent == NULL || m_thread < 0 || m_languageModel == 0 || m_dictionary == 0 || m_acousticModel == 0 || m_triphoneList == 0 || m_configFile == 0)
return;
/* set latency */
sprintf(buff, "PA_MIN_LATENCY_MSEC=%d", JULIUSTHREAD_LATENCY);
putenv(buff);
sprintf(buff, "LATENCY_MSEC=%d", JULIUSTHREAD_LATENCY);
putenv(buff);
/* turn off log */
jlog_set_output(NULL);
/* load models */
tmp = MMDAgent_pathdup(m_languageModel);
sprintf(buff, "-d \"%s\"", tmp);
free(tmp);
m_jconf = j_config_load_string_new(buff);
if (m_jconf == NULL) {
return;
}
tmp = MMDAgent_pathdup(m_dictionary);
sprintf(buff, "-v \"%s\"", tmp);
free(tmp);
if(j_config_load_string(m_jconf, buff) < 0) {
return;
}
tmp = MMDAgent_pathdup(m_acousticModel);
sprintf(buff, "-h \"%s\"", tmp);
free(tmp);
if(j_config_load_string(m_jconf, buff) < 0) {
return;
}
tmp = MMDAgent_pathdup(m_triphoneList);
sprintf(buff, "-hlist \"%s\"", tmp);
free(tmp);
if(j_config_load_string(m_jconf, buff) < 0) {
return;
}
/* load config file */
tmp = MMDAgent_pathdup(m_configFile);
if(j_config_load_file(m_jconf, tmp) < 0) {
free(tmp);
return;
}
free(tmp);
/* load user dictionary */
fp = MMDAgent_fopen(m_userDictionary, "r");
if(fp != NULL) {
fclose(fp);
tmp = MMDAgent_pathdup(m_userDictionary);
j_add_dict(m_jconf->lm_root, tmp);
free(tmp);
}
/* create instance */
m_recog = j_create_instance_from_jconf(m_jconf);
if (m_recog == NULL) {
return;
}
/* register callback functions */
callback_add(m_recog, CALLBACK_EVENT_RECOGNITION_BEGIN, callbackRecogBegin, this);
callback_add(m_recog, CALLBACK_RESULT, callbackRecogResult, this);
if (!j_adin_init(m_recog)) {
return;
}
if (j_open_stream(m_recog, NULL) != 0) {
return;
}
/* setup logger */
m_logger.setup(m_recog);
/* start logger */
m_logger.setActiveFlag(true);
/* start recognize */
j_recognize_stream(m_recog);
}
