public void Enqueue(TTSMessage message)
{
if (null == _parentTTS)
{
throw new InvalidOperationException("No associated Text-To-Speech subsystem for injection");
}
else if (message.AlreadySpoken())
{
throw new InvalidOperationException($"{GetType().Name}: message has already been spoken");
}
_parentTTS.TTSInitialize();
uint messageKey;
message.Voice = _parentTTS.CurrentVoice;
vx_tts_status status = VivoxCoreInstance.vx_tts_speak(_parentTTS.TTSManagerId, message.Voice.Key, message.Text, (vx_tts_destination)message.Destination, out messageKey);
if (TextToSpeech.IsNotTTSError(status))
{
message.Key = messageKey;
message.TTS = _parentTTS;
message.State = TTSMessageState.Enqueued;
message.PropertyChanged += OnMessage_PropertyChanged;
_messages.Add(message);
AfterMessageAdded?.Invoke(this, new ITTSMessageQueueEventArgs(message));
}
else
{
throw new VivoxApiException((int)status);
}
}
public void CancelDestination(TTSDestination destination)
{
ReadOnlyCollection <TTSMessage> destCol = GetMessagesFromDestination(destination);
if (destCol.Count == 0)
{
return;
}
_client.TTSInitialize();
vx_tts_status status = VivoxCoreInstance.vx_tts_cancel_all_in_dest(TTSManagerId, (vx_tts_destination)destination);
if (IsNotTTSError(status))
{
foreach (TTSMessage message in destCol)
{
_ttsMessages.Cleanup(message);
}
}
else
{
throw new VivoxApiException((int)status);
}
}
public bool Remove(TTSMessage message)
{
if (!_messages.Contains(message))
{
return(false);
}
if (null == _parentTTS)
{
throw new InvalidOperationException("No associated Text-To-Speech subsystem for cancellation");
}
_parentTTS.TTSInitialize();
vx_tts_status status = VivoxCoreInstance.vx_tts_cancel_utterance(_parentTTS.TTSManagerId, message.Key);
if (TextToSpeech.IsNotTTSError(status))
{
BeforeMessageRemoved?.Invoke(this, new ITTSMessageQueueEventArgs(message));
return(_messages.Remove(message));
}
else
{
throw new VivoxApiException((int)status);
}
}
internal bool TTSInitialize()
{
if (!_ttsIsInitialized)
{
// NB: once there's more than one tts_engine type available we'll need to make a public TTSInitialize() method.
vx_tts_status status = VivoxCoreInstance.vx_tts_initialize(vx_tts_engine_type.tts_engine_vivox_default, out _ttsManagerId);
if (vx_tts_status.tts_status_success == status)
{
_ttsIsInitialized = true;
}
}
return(_ttsIsInitialized);
}
public void CancelAll()
{
if (_ttsMessages.Count == 0)
{
return;
}
_client.TTSInitialize();
vx_tts_status status = VivoxCoreInstance.vx_tts_cancel_all(TTSManagerId);
if (IsNotTTSError(status))
{
_ttsMessages.Cleanup();
}
else
{
throw new VivoxApiException((int)status);
}
}
internal static bool IsNotTTSError(vx_tts_status status)
{
return(status == vx_tts_status.tts_status_success ||
status == vx_tts_status.tts_status_input_text_was_enqueued ||
status == vx_tts_status.tts_status_enqueue_not_necessary);
}
