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fix: Allocate memory to input buffer

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This commit is contained in:
Diadlo 2018-01-16 02:24:19 +03:00
parent 2353a66fde
commit 900f2a1ad3
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GPG Key ID: 5AF9F2E29107C727
3 changed files with 34 additions and 18 deletions
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23
src/audio/backend/openal.cpp
View File

@ -301,6 +301,7 @@ bool OpenAL::initInput(const QString& deviceName, uint32_t channels)
assert(!alInDev);
// TODO: Try to actually detect if our audio source is stereo
this->channels = channels;
int stereoFlag = channels == 1 ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16;
const uint32_t sampleRate = AUDIO_SAMPLE_RATE;
const uint16_t frameDuration = AUDIO_FRAME_DURATION;
@ -316,6 +317,7 @@ bool OpenAL::initInput(const QString& deviceName, uint32_t channels)
return false;
}
inputBuffer = new int16_t[AUDIO_FRAME_SAMPLE_COUNT * channels];
setInputGain(Settings::getInstance().getAudioInGainDecibel());
setInputThreshold(Settings::getInstance().getAudioThreshold());
@ -468,6 +470,8 @@ void OpenAL::cleanupInput()
alInDev = nullptr;
else
qWarning() << "Failed to close input";
delete[] inputBuffer;
}
/**
@ -529,9 +533,9 @@ void OpenAL::playMono16SoundCleanup()
*
* @return volume in percent of max volume
*/
float OpenAL::getVolume(int16_t *buf)
float OpenAL::getVolume()
{
quint32 samples = AUDIO_FRAME_SAMPLE_COUNT * AUDIO_CHANNELS;
quint32 samples = AUDIO_FRAME_SAMPLE_COUNT * channels;
float sum = 0.0;
for (quint32 i = 0; i < samples; i++) {
float sample = (float)buf[i] / (float)std::numeric_limits<int16_t>::max();
@ -567,10 +571,9 @@ void OpenAL::doAudio()
if (static_cast<ALuint>(curSamples) < AUDIO_FRAME_SAMPLE_COUNT)
return;
int16_t buf[AUDIO_FRAME_SAMPLE_COUNT * AUDIO_CHANNELS];
alcCaptureSamples(alInDev, buf, AUDIO_FRAME_SAMPLE_COUNT);
alcCaptureSamples(alInDev, inputBuffer, AUDIO_FRAME_SAMPLE_COUNT);
float volume = getVolume(buf);
float volume = getVolume();
if (volume >= inputThreshold)
{
isActive = true;
@ -583,16 +586,16 @@ void OpenAL::doAudio()
return;
}
for (quint32 i = 0; i < AUDIO_FRAME_SAMPLE_COUNT * AUDIO_CHANNELS; ++i) {
for (quint32 i = 0; i < AUDIO_FRAME_SAMPLE_COUNT * channels; ++i) {
// gain amplification with clipping to 16-bit boundaries
int ampPCM =
qBound<int>(std::numeric_limits<int16_t>::min(), qRound(buf[i] * inputGainFactor()),
int ampPCM = qBound<int>(std::numeric_limits<int16_t>::min(),
qRound(inputBuffer[i] * inputGainFactor()),
std::numeric_limits<int16_t>::max());
buf[i] = static_cast<int16_t>(ampPCM);
inputBuffer[i] = static_cast<int16_t>(ampPCM);
}
emit Audio::frameAvailable(buf, AUDIO_FRAME_SAMPLE_COUNT, AUDIO_CHANNELS, AUDIO_SAMPLE_RATE);
emit Audio::frameAvailable(inputBuffer, AUDIO_FRAME_SAMPLE_COUNT, channels, AUDIO_SAMPLE_RATE);
}
/**

5
src/audio/backend/openal.h
View File

@ -106,11 +106,12 @@ protected:
bool initInput(const QString& deviceName, uint32_t channels);
virtual void doAudio();
float getVolume();
private:
virtual bool initInput(const QString& deviceName);
virtual bool initOutput(const QString& outDevDescr);
void playMono16SoundCleanup();
float getVolume(int16_t *buf);
protected:
QThread* audioThread;
@ -127,6 +128,7 @@ protected:
bool outputInitialized = false;
QList<ALuint> peerSources;
int channels = 0;
qreal gain = 0;
qreal gainFactor = 1;
qreal minInGain = -30;
@ -137,6 +139,7 @@ protected:
QTimer voiceTimer;
qreal minInThreshold = 0.0;
qreal maxInThreshold = 0.4;
int16_t* inputBuffer;
};
#endif // OPENAL_H

22
src/audio/backend/openal2.cpp
View File

@ -361,23 +361,33 @@ void OpenAL2::doInput()
return;
}
int16_t buf[AUDIO_FRAME_SAMPLE_COUNT];
alcCaptureSamples(alInDev, buf, AUDIO_FRAME_SAMPLE_COUNT);
alcCaptureSamples(alInDev, inputBuffer, AUDIO_FRAME_SAMPLE_COUNT);
if (echoCancelSupported && filterer) {
filter_audio(filterer, buf, AUDIO_FRAME_SAMPLE_COUNT);
filter_audio(filterer, inputBuffer, AUDIO_FRAME_SAMPLE_COUNT);
}
float volume = getVolume();
if (volume >= inputThreshold) {
isActive = true;
emit startActive(voiceHold);
}
emit Audio::volumeAvailable(volume);
if (!isActive) {
return;
}
// gain amplification with clipping to 16-bit boundaries
for (quint32 i = 0; i < AUDIO_FRAME_SAMPLE_COUNT; ++i) {
int ampPCM = qBound<int>(std::numeric_limits<int16_t>::min(),
qRound(buf[i] * OpenAL::inputGainFactor()),
qRound(inputBuffer[i] * OpenAL::inputGainFactor()),
std::numeric_limits<int16_t>::max());
buf[i] = static_cast<int16_t>(ampPCM);
inputBuffer[i] = static_cast<int16_t>(ampPCM);
}
emit Audio::frameAvailable(buf, AUDIO_FRAME_SAMPLE_COUNT, 1, AUDIO_SAMPLE_RATE);
emit Audio::frameAvailable(inputBuffer, AUDIO_FRAME_SAMPLE_COUNT, 1, AUDIO_SAMPLE_RATE);
}
/**