static espeak_ng_STATUS Synthesize(unsigned int unique_identifier, const void *text, int flags)
{
// Fill the buffer with output sound
int length;
int finished = 0;
int count_buffers = 0;
if ((outbuf == NULL) || (event_list == NULL))
return ENS_NOT_INITIALIZED;
option_ssml = flags & espeakSSML;
option_phoneme_input = flags & espeakPHONEMES;
option_endpause = flags & espeakENDPAUSE;
count_samples = 0;
espeak_ng_STATUS status;
if (translator == NULL) {
status = espeak_ng_SetVoiceByName("en");
if (status != ENS_OK)
return status;
}
if (p_decoder == NULL)
p_decoder = create_text_decoder();
status = text_decoder_decode_string_multibyte(p_decoder, text, translator->encoding, flags);
if (status != ENS_OK)
return status;
SpeakNextClause(0);
for (;;) {
out_ptr = outbuf;
out_end = &outbuf[outbuf_size];
event_list_ix = 0;
WavegenFill();
length = (out_ptr - outbuf)/2;
count_samples += length;
event_list[event_list_ix].type = espeakEVENT_LIST_TERMINATED; // indicates end of event list
event_list[event_list_ix].unique_identifier = unique_identifier;
event_list[event_list_ix].user_data = my_user_data;
count_buffers++;
if ((my_mode & ENOUTPUT_MODE_SPEAK_AUDIO) == ENOUTPUT_MODE_SPEAK_AUDIO) {
finished = create_events((short *)outbuf, length, event_list);
if (finished < 0)
return ENS_AUDIO_ERROR;
} else if (synth_callback)
finished = synth_callback((short *)outbuf, length, event_list);
if (finished) {
SpeakNextClause(2); // stop
return ENS_SPEECH_STOPPED;
}
if (Generate(phoneme_list, &n_phoneme_list, 1) == 0) {
if (WcmdqUsed() == 0) {
// don't process the next clause until the previous clause has finished generating speech.
// This ensures that <audio> tag (which causes end-of-clause) is at a sound buffer boundary
event_list[0].type = espeakEVENT_LIST_TERMINATED;
event_list[0].unique_identifier = my_unique_identifier;
event_list[0].user_data = my_user_data;
if (SpeakNextClause(1) == 0) {
finished = 0;
if ((my_mode & ENOUTPUT_MODE_SPEAK_AUDIO) == ENOUTPUT_MODE_SPEAK_AUDIO) {
if (dispatch_audio(NULL, 0, NULL) < 0)
return ENS_AUDIO_ERROR;
} else if (synth_callback)
finished = synth_callback(NULL, 0, event_list); // NULL buffer ptr indicates end of data
if (finished) {
SpeakNextClause(2); // stop
return ENS_SPEECH_STOPPED;
}
return ENS_OK;
}
}
}
}
}
static espeak_ERROR Synthesize(unsigned int unique_identifier, const void *text, int flags)
{//========================================================================================
// Fill the buffer with output sound
int length;
int finished = 0;
int count_buffers = 0;
#ifdef USE_ASYNC
uint32_t a_write_pos=0;
#endif
#ifdef DEBUG_ENABLED
ENTER("Synthesize");
if (text)
{
SHOW("Synthesize > uid=%d, flags=%d, >>>text=%s<<<\n", unique_identifier, flags, text);
}
#endif
if((outbuf==NULL) || (event_list==NULL))
return(EE_INTERNAL_ERROR); // espeak_Initialize() has not been called
option_multibyte = flags & 7;
option_ssml = flags & espeakSSML;
option_phoneme_input = flags & espeakPHONEMES;
option_endpause = flags & espeakENDPAUSE;
count_samples = 0;
#ifdef USE_ASYNC
if(my_mode == AUDIO_OUTPUT_PLAYBACK)
{
a_write_pos = wave_get_write_position(my_audio);
}
#endif
if(translator == NULL)
{
SetVoiceByName("default");
}
SpeakNextClause(NULL,text,0);
if(my_mode == AUDIO_OUTPUT_SYNCH_PLAYBACK)
{
for(;;)
{
#ifdef PLATFORM_WINDOWS
Sleep(300); // 0.3s
#else
#ifdef USE_NANOSLEEP
struct timespec period;
struct timespec remaining;
period.tv_sec = 0;
period.tv_nsec = 300000000; // 0.3 sec
nanosleep(&period,&remaining);
#else
sleep(1);
#endif
#endif
if(SynthOnTimer() != 0)
break;
}
return(EE_OK);
}
for(;;)
{
#ifdef DEBUG_ENABLED
SHOW("Synthesize > %s\n","for (next)");
#endif
out_ptr = outbuf;
out_end = &outbuf[outbuf_size];
event_list_ix = 0;
WavegenFill(0);
length = (out_ptr - outbuf)/2;
count_samples += length;
event_list[event_list_ix].type = espeakEVENT_LIST_TERMINATED; // indicates end of event list
event_list[event_list_ix].unique_identifier = my_unique_identifier;
event_list[event_list_ix].user_data = my_user_data;
count_buffers++;
if (my_mode==AUDIO_OUTPUT_PLAYBACK)
{
#ifdef USE_ASYNC
finished = create_events((short *)outbuf, length, event_list, a_write_pos);
if(finished < 0)
return EE_INTERNAL_ERROR;
length = 0; // the wave data are played once.
#endif
}
else
{
finished = synth_callback((short *)outbuf, length, event_list);
}
if(finished)
{
SpeakNextClause(NULL,0,2); // stop
break;
}
if(Generate(phoneme_list,&n_phoneme_list,1)==0)
{
if(WcmdqUsed() == 0)
{
// don't process the next clause until the previous clause has finished generating speech.
// This ensures that <audio> tag (which causes end-of-clause) is at a sound buffer boundary
event_list[0].type = espeakEVENT_LIST_TERMINATED;
event_list[0].unique_identifier = my_unique_identifier;
event_list[0].user_data = my_user_data;
if(SpeakNextClause(NULL,NULL,1)==0)
{
#ifdef USE_ASYNC
if (my_mode==AUDIO_OUTPUT_PLAYBACK)
{
if(dispatch_audio(NULL, 0, NULL) < 0) // TBD: test case
return err = EE_INTERNAL_ERROR;
}
else
{
synth_callback(NULL, 0, event_list); // NULL buffer ptr indicates end of data
}
#else
synth_callback(NULL, 0, event_list); // NULL buffer ptr indicates end of data
#endif
break;
}
}
}
}
return(EE_OK);
} // end of Synthesize
