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/*
* UBAudioQueueRecorder.h
*
* Created on: Sep 11, 2009
* Author: luc
*/
#ifndef UBAUDIOQUEUERECORDER_H_
#define UBAUDIOQUEUERECORDER_H_
#include <QtCore>
#include <ApplicationServices/ApplicationServices.h>
#include <AudioToolbox/AudioToolbox.h>
class UBAudioQueueRecorder : public QObject
{
Q_OBJECT;
public:
UBAudioQueueRecorder(QObject* pObject = 0);
virtual ~UBAudioQueueRecorder();
bool init(const QString& waveInDeviceName = QString(""));
bool close();
static QStringList waveInDevices();
static AudioDeviceID deviceIDFromDeviceName(const QString& name);
static QString deviceNameFromDeviceID(AudioDeviceID id);
static QString deviceUIDFromDeviceID(AudioDeviceID id);
static QList<AudioDeviceID> inputDeviceIDs();
static AudioDeviceID defaultInputDeviceID();
QString lastErrorMessage()
{
return mLastErrorMessage;
}
static AudioStreamBasicDescription audioFormat()
{
return sAudioFormat;
}
signals:
void newWaveBuffer(void* pBuffer, long pLength, int inNumberPacketDescriptions, const AudioStreamPacketDescription *inPacketDescs);
void audioLevelChanged(quint8 level);
private:
static void audioQueueInputCallback (void *inUserData, AudioQueueRef inAQ,
AudioQueueBufferRef inBuffer, const AudioTimeStamp *inStartTime,
UInt32 inNumberPacketDescriptions, const AudioStreamPacketDescription *inPacketDescs);
void emitNewWaveBuffer(AudioQueueBufferRef pBuffer, int inNumberPacketDescriptions, const AudioStreamPacketDescription *inPacketDescs);
void emitAudioLevelChanged(quint8 level);
void setLastErrorMessage(const QString& pLastErrorMessage)
{
mLastErrorMessage = pLastErrorMessage;
qWarning() << "UBAudioQueueRecorder error:" << mLastErrorMessage;
}
bool isRecording() const
{
return mIsRecording;
}
AudioQueueRef mQueue;
QList<AudioQueueBufferRef> mBuffers;
QString mLastErrorMessage;
volatile bool mIsRecording;
int mBufferLengthInMs;
volatile long mMsTimeStamp;
UInt32 mSampleBufferSize;
static AudioStreamBasicDescription sAudioFormat;
};
#endif /* UBAUDIOQUEUERECORDER_H_ */