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Stereo injectors now handled same as mono

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Except of course no HRTF.
This commit is contained in:
David Kelly 2016-07-11 11:31:47 -07:00
parent 4f80c77b77
commit c84ef5f626
2 changed files with 26 additions and 42 deletions
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65
libraries/audio-client/src/AudioClient.cpp
View file

@ -788,24 +788,37 @@ void AudioClient::mixLocalAudioInjectors(int16_t* inputBuffer) {
memset(_hrtfBuffer, 0, sizeof(_hrtfBuffer));
QVector<AudioInjector*> injectorsToRemove;
static const float INT16_TO_FLOAT_SCALE_FACTOR = 1/32768.0f;
bool injectorsHaveData = false;
for (AudioInjector* injector : getActiveLocalAudioInjectors()) {
if (injector->getLocalBuffer()) {
// get one (mono) frame from the injector
if (0 < injector->getLocalBuffer()->readData((char*)_scratchBuffer, AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL*sizeof(int16_t)) ) {
qint64 samplesToRead = injector->isStereo() ?
AudioConstants::NETWORK_FRAME_BYTES_STEREO :
AudioConstants::NETWORK_FRAME_BYTES_PER_CHANNEL;
// get one frame from the injector (mono or stereo)
if (0 < injector->getLocalBuffer()->readData((char*)_scratchBuffer, samplesToRead)) {
injectorsHaveData = true;
// calculate gain and azimuth for hrtf
glm::vec3 relativePosition = injector->getPosition() - _positionGetter();
float gain = gainForSource(relativePosition, injector->getVolume());
float azimuth = azimuthForSource(relativePosition);
if (injector->isStereo() ) {
for(int i=0; i<AudioConstants::NETWORK_FRAME_SAMPLES_STEREO; i++) {
_hrtfBuffer[i] += (float)(_scratchBuffer[i]) * INT16_TO_FLOAT_SCALE_FACTOR;
}
} else {
// calculate gain and azimuth for hrtf
glm::vec3 relativePosition = injector->getPosition() - _positionGetter();
float gain = gainForSource(relativePosition, injector->getVolume());
float azimuth = azimuthForSource(relativePosition);
injector->getLocalHRTF().render(_scratchBuffer, _hrtfBuffer, 1, azimuth, gain, AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL);
injector->getLocalHRTF().render(_scratchBuffer, _hrtfBuffer, 1, azimuth, gain, AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL);
}
} else {
@ -828,7 +841,7 @@ void AudioClient::mixLocalAudioInjectors(int16_t* inputBuffer) {
// mix network into the hrtfBuffer
for(int i=0; i<AudioConstants::NETWORK_FRAME_SAMPLES_STEREO; i++) {
_hrtfBuffer[i] += (float)(inputBuffer[i]) * 1/32678.0f;
_hrtfBuffer[i] += (float)(inputBuffer[i]) * INT16_TO_FLOAT_SCALE_FACTOR;
}
// now, use limiter to write back to the inputBuffer
@ -920,42 +933,12 @@ void AudioClient::setIsStereoInput(bool isStereoInput) {
bool AudioClient::outputLocalInjector(bool isStereo, AudioInjector* injector) {
if (injector->getLocalBuffer() && _audioInput ) {
if(isStereo) {
QAudioFormat localFormat = _desiredOutputFormat;
localFormat.setChannelCount(isStereo ? 2 : 1);
QAudioOutput* localOutput = new QAudioOutput(getNamedAudioDeviceForMode(QAudio::AudioOutput, _outputAudioDeviceName),
localFormat,
injector->getLocalBuffer());
// move the localOutput to the same thread as the local injector buffer
localOutput->moveToThread(injector->getLocalBuffer()->thread());
// have it be stopped when that local buffer is about to close
// We don't want to stop this localOutput and injector whenever this AudioClient singleton goes idle,
// only when the localOutput does. But the connection is to localOutput, so that it happens on the right thread.
connect(localOutput, &QAudioOutput::stateChanged, localOutput, [=](QAudio::State state) {
if (state == QAudio::IdleState) {
localOutput->stop();
injector->stop();
}
});
connect(injector->getLocalBuffer(), &QIODevice::aboutToClose, localOutput, &QAudioOutput::stop);
qCDebug(audioclient) << "Starting QAudioOutput for local injector" << localOutput;
localOutput->start(injector->getLocalBuffer());
return localOutput->state() == QAudio::ActiveState;
} else {
// just add it to the vector of active local injectors
// TODO: deal with concurrency perhaps? Maybe not
qDebug() << "adding new injector!!!!!!!";
_activeLocalAudioInjectors.append(injector);
return true;
}
qDebug() << "adding new injector!!!!!!!";
_activeLocalAudioInjectors.append(injector);
return true;
}
return false;

3
libraries/audio/src/AudioInjector.h
View file

@ -59,7 +59,8 @@ public:
bool isLocalOnly() const { return _options.localOnly; }
float getVolume() const { return _options.volume; }
glm::vec3 getPosition() const { return _options.position; }
glm::vec3 getPosition() const { return _options.position; }
bool isStereo() const { return _options.stereo; }
void setLocalAudioInterface(AbstractAudioInterface* localAudioInterface) { _localAudioInterface = localAudioInterface; }
static AudioInjector* playSoundAndDelete(const QByteArray& buffer, const AudioInjectorOptions options, AbstractAudioInterface* localInterface);