static int
spk_construct (volatile SpeechSynthesizer *spk, char **parameters) {
int code;
spk->setVolume = spk_setVolume;
spk->setRate = spk_setRate;
loadSynthesisLibrary();
if ((speechQueue = newQueue(deallocateSpeechItem, NULL))) {
if (mpChannelInitEx) {
if (!(code = mpChannelInitEx(&speechChannel, NULL, NULL, NULL))) {
memset(&speechParameters, 0, sizeof(speechParameters));
speechParameters.nWriteWavHeader = 0;
speechParameters.pfnWrite = writeSound;
speechParameters.pWriteData = NULL;
{
const char *name = parameters[PARM_NAME];
if (name && *name) {
char tag[0X100];
snprintf(tag, sizeof(tag), "<voice name=\"%s\"/>", name);
enqueueTag(tag);
}
}
{
const char *pitch = parameters[PARM_PITCH];
if (pitch && *pitch) {
int setting = 0;
static const int minimum = -10;
static const int maximum = 10;
if (validateInteger(&setting, pitch, &minimum, &maximum)) {
char tag[0X100];
snprintf(tag, sizeof(tag), "<pitch absmiddle=\"%d\"/>", setting);
enqueueTag(tag);
} else {
logMessage(LOG_WARNING, "%s: %s", "invalid pitch specification", pitch);
}
}
}
return 1;
} else {
logSynthesisError(code, "channel initialization");
}
}
} else {
logMessage(LOG_ERR, "Cannot allocate speech queue.");
}
spk_destruct(spk);
return 0;
}
static void myerror(volatile SpeechSynthesizer *spk, char *fmt, ...)
{
char buf[ERRBUFLEN];
int offs;
va_list argp;
va_start(argp, fmt);
offs = snprintf(buf, ERRBUFLEN, "ExternalSpeech: ");
if(offs < ERRBUFLEN) {
offs += vsnprintf(buf+offs, ERRBUFLEN-offs, fmt, argp);
}
buf[ERRBUFLEN-1] = 0;
va_end(argp);
logMessage(LOG_ERR, "%s", buf);
spk_destruct(spk);
}
