private IEnumerator LoadAudioClip(string filename, ECachingMode cachingMode, Action <AudioClip> resultHandler)
{
string fullFilePath = Path.Combine(FilesystemCachePath, filename);
string url = string.Format(@"file:///{0}", Path.GetDirectoryName(Application.dataPath) + "/" + fullFilePath.Replace(@"\", @"/"));
WWW www = new WWW(url);
yield return(www);
if (!string.IsNullOrEmpty(www.error))
{
Debug.LogError(www.error);
}
resultHandler(www.GetAudioClip(false, false, AudioType.WAV));
if (cachingMode == ECachingMode.NoCaching)
{
File.Delete(fullFilePath);
}
else if (cachingMode == ECachingMode.CacheInUnity && Application.isEditor)
{
string fullUnityPath = GetFullUnityCachePath();
string fullUnityFilePath = Path.Combine(fullUnityPath, filename);
if (!File.Exists(fullUnityFilePath))
{
Directory.CreateDirectory(fullUnityPath);
File.Move(fullFilePath, Path.Combine(fullUnityPath, filename));
}
else
{
Debug.LogWarning("Tried to duplicate TTS cache. Seems that the Unity TTS cache is not yet imported. Try refreshing the project view.");
}
}
}
private void PrepareAudioClip(string filename, ECachingMode cachingMode, Action <AudioClip> onPreparedHandler)
{
StartCoroutine(
LoadAudioClip(
filename,
cachingMode,
onPreparedHandler
)
);
}
internal void Prepare(TTSText ttsText, TTS tts, Action <Action <Action> > onPreparedHandler, ECachingMode cachingMode = ECachingMode.CacheInFileSystem)
{
if (ChatterBox.Instance == null)
{
Debug.LogError("Unable to speak text. ChatterBox not ready.");
return;
}
string cacheName = tts.TextToSpeech.GetCacheFilename(ttsText.SpokenText);
if (cachingMode == ECachingMode.CacheInUnity)
{
string resourceName = cacheName.Substring(0, cacheName.Length - Path.GetExtension(cacheName).Length);
AudioClip audioClip = Resources.Load <AudioClip>(resourceName);
if (audioClip != null)
{
onPreparedHandler(onTssEndedAction => tts.PlayAudioClip(audioClip, ttsText, onTssEndedAction));
return;
}
}
if (cachingMode != ECachingMode.NoCaching)
{
string fileSystemName = Path.Combine(FilesystemCachePath, cacheName);
if (File.Exists(fileSystemName))
{
PrepareAudioClip(
cacheName,
cachingMode,
audioClip => onPreparedHandler(onTssEndedAction => tts.PlayAudioClip(audioClip, ttsText, onTssEndedAction))
);
return;
}
}
// no cache hit. Needs to be generated.
tts.TextToSpeech.CreateAudioFileFromText(
ttsText.SpokenText,
filename => PrepareAudioClip(
filename,
cachingMode,
audioClip => onPreparedHandler(onTssEndedAction => tts.PlayAudioClip(audioClip, ttsText, onTssEndedAction))
),
error => Debug.LogError(error)
);
}
