1 #include "engine/channels/enginemicrophone.h"
2
3 #include <QtDebug>
4
5 #include "control/control.h"
6 #include "control/controlaudiotaperpot.h"
7 #include "effects/effectsmanager.h"
8 #include "engine/effects/engineeffectsmanager.h"
9 #include "moc_enginemicrophone.cpp"
10 #include "preferences/usersettings.h"
11 #include "util/sample.h"
12
EngineMicrophone(const ChannelHandleAndGroup & handle_group,EffectsManager * pEffectsManager)13 EngineMicrophone::EngineMicrophone(const ChannelHandleAndGroup& handle_group,
14 EffectsManager* pEffectsManager)
15 : EngineChannel(handle_group, EngineChannel::CENTER, pEffectsManager,
16 /*isTalkoverChannel*/ true,
17 /*isPrimaryDeck*/ false),
18 m_pInputConfigured(new ControlObject(ConfigKey(getGroup(), "input_configured"))),
19 m_pPregain(new ControlAudioTaperPot(ConfigKey(getGroup(), "pregain"), -12, 12, 0.5)),
20 m_wasActive(false) {
21 // Make input_configured read-only.
22 m_pInputConfigured->setReadOnly();
23 ControlDoublePrivate::insertAlias(ConfigKey(getGroup(), "enabled"),
24 ConfigKey(getGroup(), "input_configured"));
25
26 setMaster(false); // Use "talkover" button to enable microphones
27 }
28
~EngineMicrophone()29 EngineMicrophone::~EngineMicrophone() {
30 delete m_pPregain;
31 }
32
isActive()33 bool EngineMicrophone::isActive() {
34 bool enabled = m_pInputConfigured->toBool();
35 if (enabled && m_sampleBuffer) {
36 m_wasActive = true;
37 } else if (m_wasActive) {
38 m_vuMeter.reset();
39 m_wasActive = false;
40 }
41 return m_wasActive;
42 }
43
onInputConfigured(const AudioInput & input)44 void EngineMicrophone::onInputConfigured(const AudioInput& input) {
45 if (input.getType() != AudioPath::MICROPHONE) {
46 // This is an error!
47 qWarning() << "EngineMicrophone connected to AudioInput for a non-Microphone type!";
48 return;
49 }
50 m_sampleBuffer = nullptr;
51 m_pInputConfigured->forceSet(1.0);
52 }
53
onInputUnconfigured(const AudioInput & input)54 void EngineMicrophone::onInputUnconfigured(const AudioInput& input) {
55 if (input.getType() != AudioPath::MICROPHONE) {
56 // This is an error!
57 qWarning() << "EngineMicrophone connected to AudioInput for a non-Microphone type!";
58 return;
59 }
60 m_sampleBuffer = nullptr;
61 m_pInputConfigured->forceSet(0.0);
62 }
63
receiveBuffer(const AudioInput & input,const CSAMPLE * pBuffer,unsigned int nFrames)64 void EngineMicrophone::receiveBuffer(
65 const AudioInput& input, const CSAMPLE* pBuffer, unsigned int nFrames) {
66 Q_UNUSED(input);
67 Q_UNUSED(nFrames);
68 m_sampleBuffer = pBuffer;
69 }
70
process(CSAMPLE * pOut,const int iBufferSize)71 void EngineMicrophone::process(CSAMPLE* pOut, const int iBufferSize) {
72 // If configured read into the output buffer.
73 // Otherwise, skip the appropriate number of samples to throw them away.
74 const CSAMPLE* sampleBuffer = m_sampleBuffer; // save pointer on stack
75 CSAMPLE_GAIN pregain = static_cast<CSAMPLE_GAIN>(m_pPregain->get());
76 if (sampleBuffer) {
77 SampleUtil::copyWithGain(pOut, sampleBuffer, pregain, iBufferSize);
78 EngineEffectsManager* pEngineEffectsManager = m_pEffectsManager->getEngineEffectsManager();
79 if (pEngineEffectsManager != nullptr) {
80 pEngineEffectsManager->processPreFaderInPlace(
81 m_group.handle(), m_pEffectsManager->getMasterHandle(), pOut, iBufferSize,
82 // TODO(jholthuis): Use mixxx::audio::SampleRate instead
83 static_cast<unsigned int>(m_pSampleRate->get()));
84 }
85 } else {
86 SampleUtil::clear(pOut, iBufferSize);
87 }
88 m_sampleBuffer = nullptr;
89
90 // Update VU meter
91 m_vuMeter.process(pOut, iBufferSize);
92 }
93
collectFeatures(GroupFeatureState * pGroupFeatures) const94 void EngineMicrophone::collectFeatures(GroupFeatureState* pGroupFeatures) const {
95 m_vuMeter.collectFeatures(pGroupFeatures);
96 }
97