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// enginemicrophone.cpp
// created 3/16/2011 by RJ Ryan (rryan@mit.edu)
#include "engine/enginemicrophone.h"
#include <QtDebug>
#include "preferences/usersettings.h"
#include "control/control.h"
#include "control/controlaudiotaperpot.h"
#include "effects/effectsmanager.h"
#include "engine/effects/engineeffectsmanager.h"
#include "util/sample.h"
EngineMicrophone::EngineMicrophone(const ChannelHandleAndGroup& handle_group,
EffectsManager* pEffectsManager)
: EngineChannel(handle_group, EngineChannel::CENTER, pEffectsManager, true),
m_pInputConfigured(new ControlObject(ConfigKey(getGroup(), "input_configured"))),
m_pPregain(new ControlAudioTaperPot(ConfigKey(getGroup(), "pregain"), -12, 12, 0.5)),
m_wasActive(false) {
// Make input_configured read-only.
m_pInputConfigured->setReadOnly();
ControlDoublePrivate::insertAlias(ConfigKey(getGroup(), "enabled"),
ConfigKey(getGroup(), "input_configured"));
setMaster(false); // Use "talkover" button to enable microphones
}
EngineMicrophone::~EngineMicrophone() {
delete m_pPregain;
}
bool EngineMicrophone::isActive() {
bool enabled = m_pInputConfigured->toBool();
if (enabled && m_sampleBuffer) {
m_wasActive = true;
} else if (m_wasActive) {
m_vuMeter.reset();
m_wasActive = false;
}
return m_wasActive;
}
void EngineMicrophone::onInputConfigured(AudioInput input) {
if (input.getType() != AudioPath::MICROPHONE) {
// This is an error!
qWarning() << "EngineMicrophone connected to AudioInput for a non-Microphone type!";
return;
}
m_sampleBuffer = NULL;
m_pInputConfigured->forceSet(1.0);
}
void EngineMicrophone::onInputUnconfigured(AudioInput input) {
if (input.getType() != AudioPath::MICROPHONE) {
// This is an error!
qWarning() << "EngineMicrophone connected to AudioInput for a non-Microphone type!";
return;
}
m_sampleBuffer = NULL;
m_pInputConfigured->forceSet(0.0);
}
void EngineMicrophone::receiveBuffer(AudioInput input, const CSAMPLE* pBuffer,
unsigned int nFrames) {
Q_UNUSED(input);
Q_UNUSED(nFrames);
m_sampleBuffer = pBuffer;
}
void EngineMicrophone::process(CSAMPLE* pOut, const int iBufferSize) {
// If configured read into the output buffer.
// Otherwise, skip the appropriate number of samples to throw them away.
const CSAMPLE* sampleBuffer = m_sampleBuffer; // save pointer on stack
double pregain = m_pPregain->get();
if (sampleBuffer) {
SampleUtil::copyWithGain(pOut, sampleBuffer, pregain, iBufferSize);
EngineEffectsManager* pEngineEffectsManager = m_pEffectsManager->getEngineEffectsManager();
if (pEngineEffectsManager != nullptr) {
pEngineEffectsManager->processPreFaderInPlace(
m_group.handle(), m_pEffectsManager->getMasterHandle(),
pOut, iBufferSize, m_pSampleRate->get());
}
} else {
SampleUtil::clear(pOut, iBufferSize);
}
m_sampleBuffer = NULL;
// Update VU meter
m_vuMeter.process(pOut, iBufferSize);
}
void EngineMicrophone::collectFeatures(GroupFeatureState* pGroupFeatures) const {
m_vuMeter.collectFeatures(pGroupFeatures);
}
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