Mirrors/overte-thingvellir
3
0
Fork 0
mirror of https://thingvellir.net/git/overte synced 2025-03-27 23:52:03 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

check for silent samples befor limiting

Browse source
This commit is contained in:
Zach Pomerantz 2017-03-08 02:59:48 -05:00
parent e69d6d8b5f
commit 7e2f1a6455
1 changed files with 7 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
assignment-client/src/audio/AudioMixerSlave.cpp
View file

@ -222,17 +222,19 @@ bool AudioMixerSlave::prepareMix(const SharedNodePointer& listener) {
stats.mixTime += mixTime.count();
#endif
// use the per listener AudioLimiter to render the mixed data...
listenerData->audioLimiter.render(_mixSamples, _bufferSamples, AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL);
// check for silent audio after the peak limiter has converted the samples
// check for silent audio before limiting
// limiting uses a dither and can only guarantee abs(sample) <= 1
bool hasAudio = false;
for (int i = 0; i < AudioConstants::NETWORK_FRAME_SAMPLES_STEREO; ++i) {
if (_bufferSamples[i] != 0) {
if (_mixSamples[i] != 0.0f) {
hasAudio = true;
break;
}
}
// use the per listener AudioLimiter to render the mixed data
listenerData->audioLimiter.render(_mixSamples, _bufferSamples, AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL);
return hasAudio;
}