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only keep the threshold number of frames on mixer as well

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Stephen Birarda 2013-03-11 17:46:57 -07:00
parent 4be337d34b
commit 14e3160d50
1 changed files with 16 additions and 0 deletions
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16
mixer/src/main.cpp
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@ -81,6 +81,22 @@ void *sendBuffer(void *args)
printf("Buffer %d starved.\n", i); printf("Buffer %d starved.\n", i);
agentBuffer->setStarted(false); agentBuffer->setStarted(false);
} else { } else {
// check if we have more than we need to play out
int thresholdFrames = ceilf((BUFFER_LENGTH_SAMPLES_PER_CHANNEL + JITTER_BUFFER_SAMPLES) / (float)BUFFER_LENGTH_SAMPLES_PER_CHANNEL);
int thresholdSamples = thresholdFrames * BUFFER_LENGTH_SAMPLES_PER_CHANNEL;
if (agentBuffer->diffLastWriteNextOutput() > thresholdSamples) {
// we need to push the next output forwards
int samplesToPush = agentBuffer->diffLastWriteNextOutput() - thresholdSamples;
if (agentBuffer->getNextOutput() + samplesToPush > agentBuffer->getBuffer()) {
agentBuffer->setNextOutput(agentBuffer->getBuffer() + (samplesToPush - (agentBuffer->getBuffer() + RING_BUFFER_SAMPLES - agentBuffer->getNextOutput())));
} else {
agentBuffer->setNextOutput(agentBuffer->getNextOutput() + samplesToPush);
}
}
// good buffer, add this to the mix // good buffer, add this to the mix
agentBuffer->setStarted(true); agentBuffer->setStarted(true);
agentBuffer->setAddedToMix(true); agentBuffer->setAddedToMix(true);