AudioInjector* AudioInjector::playSound(const QString& soundUrl, const float volume, const float stretchFactor, const glm::vec3 position) {
if (soundUrl.isEmpty()) {
return NULL;
}
auto soundCache = DependencyManager::get<SoundCache>();
if (soundCache.isNull()) {
return NULL;
}
SharedSoundPointer sound = soundCache->getSound(QUrl(soundUrl));
if (sound.isNull() || !sound->isReady()) {
return NULL;
}
AudioInjectorOptions options;
options.stereo = sound->isStereo();
options.position = position;
options.volume = volume;
QByteArray samples = sound->getByteArray();
if (stretchFactor == 1.0f) {
return playSound(samples, options, NULL);
}
soxr_io_spec_t spec = soxr_io_spec(SOXR_INT16_I, SOXR_INT16_I);
soxr_quality_spec_t qualitySpec = soxr_quality_spec(SOXR_MQ, 0);
const int channelCount = sound->isStereo() ? 2 : 1;
const int standardRate = AudioConstants::SAMPLE_RATE;
const int resampledRate = standardRate * stretchFactor;
const int nInputSamples = samples.size() / sizeof(int16_t);
const int nOutputSamples = nInputSamples * stretchFactor;
QByteArray resampled(nOutputSamples * sizeof(int16_t), '\0');
const int16_t* receivedSamples = reinterpret_cast<const int16_t*>(samples.data());
soxr_error_t soxError = soxr_oneshot(standardRate, resampledRate, channelCount,
receivedSamples, nInputSamples, NULL,
reinterpret_cast<int16_t*>(resampled.data()), nOutputSamples, NULL,
&spec, &qualitySpec, 0);
if (soxError) {
qCDebug(audio) << "Unable to resample" << soundUrl << "from" << nInputSamples << "@" << standardRate << "to" << nOutputSamples << "@" << resampledRate;
resampled = samples;
}
return playSound(resampled, options, NULL);
}
AudioInjector* AudioInjector::playSound(const QString& soundUrl, const float volume, const float stretchFactor, const glm::vec3 position) {
if (soundUrl.isEmpty()) {
return NULL;
}
auto soundCache = DependencyManager::get<SoundCache>();
if (soundCache.isNull()) {
return NULL;
}
SharedSoundPointer sound = soundCache->getSound(QUrl(soundUrl));
if (sound.isNull() || !sound->isReady()) {
return NULL;
}
AudioInjectorOptions options;
options.stereo = sound->isStereo();
options.position = position;
options.volume = volume;
QByteArray samples = sound->getByteArray();
if (stretchFactor == 1.0f) {
return playSoundAndDelete(samples, options, NULL);
}
const int standardRate = AudioConstants::SAMPLE_RATE;
const int resampledRate = standardRate * stretchFactor;
const int channelCount = sound->isStereo() ? 2 : 1;
AudioSRC resampler(standardRate, resampledRate, channelCount);
const int nInputFrames = samples.size() / (channelCount * sizeof(int16_t));
const int maxOutputFrames = resampler.getMaxOutput(nInputFrames);
QByteArray resampled(maxOutputFrames * channelCount * sizeof(int16_t), '\0');
int nOutputFrames = resampler.render(reinterpret_cast<const int16_t*>(samples.data()),
reinterpret_cast<int16_t*>(resampled.data()),
nInputFrames);
Q_UNUSED(nOutputFrames);
return playSoundAndDelete(resampled, options, NULL);
}
AudioInjector::AudioInjector(SharedSoundPointer sound, const AudioInjectorOptions& injectorOptions) :
_sound(sound),
_audioData(sound->getAudioData()),
_options(injectorOptions)
{
}
QScriptValue soundSharedPointerToScriptValue(QScriptEngine* engine, SharedSoundPointer const& in) {
return engine->newQObject(in.data());
}
SoundScriptingInterface::SoundScriptingInterface(SharedSoundPointer sound) : _sound(sound) {
QObject::connect(sound.data(), &Sound::ready, this, &SoundScriptingInterface::ready);
}
