AudioCache* AudioEngineImpl::preload(const std::string& filePath, std::function<void(bool)> callback)
{
AudioCache* audioCache = nullptr;
do
{
auto it = _audioCaches.find(filePath);
if (it == _audioCaches.end()) {
FileFormat fileFormat = FileFormat::UNKNOWN;
std::string fileExtension = FileUtils::getInstance()->getFileExtension(filePath);
if (fileExtension == ".wav")
{
fileFormat = FileFormat::WAV;
}
else if (fileExtension == ".ogg")
{
fileFormat = FileFormat::OGG;
}
else if (fileExtension == ".mp3")
{
fileFormat = FileFormat::MP3;
}
else
{
log("Unsupported media type file: %s\n", filePath.c_str());
break;
}
audioCache = &_audioCaches[filePath];
audioCache->_fileFormat = fileFormat;
std::string fullPath = FileUtils::getInstance()->fullPathForFilename(filePath);
audioCache->_fileFullPath = fullPath;
AudioEngine::addTask(std::bind(&AudioCache::readDataTask, audioCache));
}
else
{
audioCache = &it->second;
}
} while (false);
if (callback)
{
if (audioCache)
{
audioCache->addLoadCallback(callback);
}
else
{
callback(false);
}
}
return audioCache;
}
AudioCache* AudioEngineImpl::preload(const std::string& filePath, std::function<void(bool)> callback)
{
AudioCache* audioCache = nullptr;
do
{
auto it = _audioCaches.find(filePath);
if (it != _audioCaches.end())
{
audioCache = &it->second;
if (callback && audioCache->_alBufferReady)
{
callback(true);
}
break;
}
AudioCache::FileFormat fileFormat = AudioCache::FileFormat::UNKNOWN;
std::string fileExtension = FileUtils::getInstance()->getFileExtension(filePath);
if (fileExtension == ".ogg")
{
fileFormat = AudioCache::FileFormat::OGG;
}
else if (fileExtension == ".mp3")
{
fileFormat = AudioCache::FileFormat::MP3;
if (MPG123_LAZYINIT)
{
auto error = mpg123_init();
if (error == MPG123_OK)
{
MPG123_LAZYINIT = false;
}
else
{
log("Basic setup goes wrong: %s", mpg123_plain_strerror(error));
break;
}
}
}
else
{
log("Unsupported media type file: %s\n", filePath.c_str());
break;
}
audioCache = &_audioCaches[filePath];
audioCache->_fileFormat = fileFormat;
audioCache->_fileFullPath = FileUtils::getInstance()->fullPathForFilename(filePath);
AudioEngine::addTask(std::bind(&AudioCache::readDataTask, audioCache));
} while (false);
if (callback)
{
if (audioCache)
{
audioCache->addLoadCallback(callback);
}
else
{
callback(false);
}
}
return audioCache;
}
