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fix a divide by zero and output number of clients mixed in last frame

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This commit is contained in:
Stephen Birarda 2014-03-21 18:16:47 -07:00
parent 42de3047ab
commit 88348b12d2
2 changed files with 15 additions and 3 deletions
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17
assignment-client/src/audio/AudioMixer.cpp
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@ -66,7 +66,8 @@ void attachNewBufferToNode(Node *newNode) {
AudioMixer::AudioMixer(const QByteArray& packet) :
ThreadedAssignment(packet),
_trailingSleepRatio(1.0f),
_minAudibilityThreshold(LOUDNESS_TO_DISTANCE_RATIO / 2.0f)
_minAudibilityThreshold(LOUDNESS_TO_DISTANCE_RATIO / 2.0f),
_numClientsMixedInFrame(0)
{
}
@ -80,15 +81,22 @@ void AudioMixer::addBufferToMixForListeningNodeWithBuffer(PositionalAudioRingBuf
if (bufferToAdd != listeningNodeBuffer) {
// if the two buffer pointers do not match then these are different buffers
glm::vec3 relativePosition = bufferToAdd->getPosition() - listeningNodeBuffer->getPosition();
if (bufferToAdd->getAverageLoudness() / glm::length(relativePosition) <= _minAudibilityThreshold) {
float distanceBetween = glm::length(relativePosition);
if (distanceBetween < EPSILON) {
distanceBetween = EPSILON;
}
if (bufferToAdd->getAverageLoudness() / distanceBetween <= _minAudibilityThreshold) {
// according to mixer performance we have decided this does not get to be mixed in
// bail out
return;
}
++_numClientsMixedInFrame;
glm::quat inverseOrientation = glm::inverse(listeningNodeBuffer->getOrientation());
float distanceSquareToSource = glm::dot(relativePosition, relativePosition);
@ -441,6 +449,9 @@ void AudioMixer::run() {
nodeList->writeDatagram(clientMixBuffer, NETWORK_BUFFER_LENGTH_BYTES_STEREO + numBytesPacketHeader, node);
}
}
qDebug() << "There were" << _numClientsMixedInFrame << "clients mixed in the last frame";
_numClientsMixedInFrame = 0;
// push forward the next output pointers for any audio buffers we used
foreach (const SharedNodePointer& node, nodeList->getNodeHash()) {

1
assignment-client/src/audio/AudioMixer.h
View file

@ -42,6 +42,7 @@ private:
float _trailingSleepRatio;
float _minAudibilityThreshold;
int _numClientsMixedInFrame;
};
#endif /* defined(__hifi__AudioMixer__) */