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Add xrun counter to device manager

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This commit is contained in:
hogliux 2017-09-26 11:01:27 +01:00
parent 3627603c83
commit 06c7fb5b01
2 changed files with 23 additions and 2 deletions
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13
modules/juce_audio_devices/audio_io/juce_AudioDeviceManager.cpp
View file

@ -731,6 +731,9 @@ void AudioDeviceManager::audioDeviceIOCallbackInt (const float** inputChannelDat
const double msTaken = Time::getMillisecondCounterHiRes() - callbackStartTime;
const double filterAmount = 0.2;
cpuUsageMs += filterAmount * (msTaken - cpuUsageMs);
if (msTaken > msPerBlock)
xruns++;
}
else
{
@ -756,13 +759,14 @@ void AudioDeviceManager::audioDeviceIOCallbackInt (const float** inputChannelDat
void AudioDeviceManager::audioDeviceAboutToStartInt (AudioIODevice* const device)
{
cpuUsageMs = 0;
xruns = 0;
const double sampleRate = device->getCurrentSampleRate();
const int blockSize = device->getCurrentBufferSizeSamples();
if (sampleRate > 0.0 && blockSize > 0)
{
const double msPerBlock = 1000.0 * blockSize / sampleRate;
msPerBlock = 1000.0 * blockSize / sampleRate;
timeToCpuScale = (msPerBlock > 0.0) ? (1.0 / msPerBlock) : 0.0;
}
@ -779,6 +783,7 @@ void AudioDeviceManager::audioDeviceStoppedInt()
{
cpuUsageMs = 0;
timeToCpuScale = 0;
xruns = 0;
sendChangeMessage();
const ScopedLock sl (audioCallbackLock);
@ -998,6 +1003,12 @@ void AudioDeviceManager::playTestSound()
}
}
int AudioDeviceManager::getXRunCount() const noexcept
{
auto deviceXRuns = (currentAudioDevice != nullptr ? currentAudioDevice->getXRunCount() : -1);
return (deviceXRuns >= 0 ? deviceXRuns : xruns);
}
double AudioDeviceManager::getCurrentInputLevel() const noexcept { return inputLevelMeter.getCurrentLevel(); }
double AudioDeviceManager::getCurrentOutputLevel() const noexcept { return outputLevelMeter.getCurrentLevel(); }

12
modules/juce_audio_devices/audio_io/juce_AudioDeviceManager.h
View file

@ -436,6 +436,15 @@ public:
*/
CriticalSection& getMidiCallbackLock() noexcept { return midiCallbackLock; }
//==============================================================================
/** Returns the number of under- or over runs reported.
This method will use the underlying device's native getXRunCount if it supports
it. Otherwise it will estimate the number of under-/overruns by measuring the
time it spent in the audio callback.
*/
int getXRunCount() const noexcept;
private:
//==============================================================================
OwnedArray<AudioIODeviceType> availableDeviceTypes;
@ -468,7 +477,8 @@ private:
ScopedPointer<AudioSampleBuffer> testSound;
int testSoundPosition;
double cpuUsageMs, timeToCpuScale;
double cpuUsageMs, timeToCpuScale, msPerBlock;
int xruns;
struct LevelMeter
{