n1gp
77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
//////////////////////////////////////////////////////////////////////
|
|
// soundout.h: interface for the CSoundOut class.
|
|
//
|
|
// History:
|
|
// 2010-09-15 Initial creation MSW
|
|
// 2011-03-27 Initial release
|
|
/////////////////////////////////////////////////////////////////////
|
|
#ifndef SOUNDOUT_H
|
|
#define SOUNDOUT_H
|
|
|
|
#include <QObject>
|
|
#include <QThread>
|
|
#include <QList>
|
|
#include <QMutex>
|
|
#include <QAudioOutput>
|
|
#include "fractresampler.h"
|
|
#include <alsa/asoundlib.h>
|
|
#include <alsa/mixer.h>
|
|
|
|
#define OUTQSIZE 16384 //max samples (keep power of 2 for ptr wrap around)
|
|
#define SOUND_WRITEBUFSIZE 8192
|
|
|
|
class CSoundOut : public QThread
|
|
{
|
|
Q_OBJECT
|
|
public:
|
|
explicit CSoundOut(QObject *parent = 0);
|
|
virtual ~CSoundOut();
|
|
|
|
//Exposed functions
|
|
bool Start(int OutDevIndx, bool StereoOut, double UsrDataRate, bool BlockingMode); //starts soundcard output
|
|
void Stop(); //stops soundcard output
|
|
void PutOutQueue(int numsamples, TYPEREAL* pData );
|
|
void PutOutQueue(int numsamples, TYPECPX* pData );
|
|
void ChangeUserDataRate(double UsrDataRate);
|
|
void SetVolume(qint32 vol);
|
|
int GetRateError(){return (int)m_PpmError;}
|
|
|
|
protected:
|
|
void run(); //implements worker thread loop
|
|
int m_BlockTime;
|
|
|
|
private:
|
|
void GetOutQueue(int numsamples, TYPEMONO16* pData );
|
|
void GetOutQueue(int numsamples, TYPESTEREO16* pData );
|
|
void CalcError();
|
|
|
|
QList<QAudioDeviceInfo> m_OutDevices;
|
|
QAudioDeviceInfo m_OutDeviceInfo;
|
|
QAudioFormat m_OutAudioFormat;
|
|
QAudioOutput* m_pAudioOutput;
|
|
QIODevice* m_pOutput; // ptr to internal soundout IODevice
|
|
QObject* m_pParent;
|
|
QMutex m_Mutex;
|
|
CFractResampler m_OutResampler;
|
|
|
|
TYPEMONO16 m_OutQueueMono[OUTQSIZE];
|
|
TYPESTEREO16 m_OutQueueStereo[OUTQSIZE];
|
|
bool m_BlockingMode;
|
|
bool m_ThreadQuit;
|
|
bool m_Startup;
|
|
bool m_StereoOut;
|
|
bool m_UpdateToggle;
|
|
quint32 m_OutQHead;
|
|
quint32 m_OutQTail;
|
|
char m_pData[SOUND_WRITEBUFSIZE];
|
|
int m_RateUpdateCount;
|
|
int m_OutQLevel;
|
|
int m_PpmError;
|
|
double m_Gain;
|
|
double m_UserDataRate;
|
|
double m_OutRatio;
|
|
double m_RateCorrection;
|
|
double m_AveOutQLevel;
|
|
};
|
|
#endif // SOUNDOUT_H
|