#ifndef ZFFAUDIO_H
#define ZFFAUDIO_H
#include <QMutex>
#include <QMutexLocker>
#include <QThread>
#include <QList>
#include <QAudioOutput>

extern "C" {
    #include <libavcodec/avcodec.h>

    #include <libavformat/avformat.h>
    #include <libavformat/version.h>

    #include <libavdevice/avdevice.h>


    #include <libavutil/time.h>
    #include <libavutil/mathematics.h>

    #include <libswscale/swscale.h>
    #include <libswresample/swresample.h>
}

class ZFFaudio : public QThread {
public:

    static ZFFaudio* getInstance();

    float            GetCurTimeSec() {
        return curTimestampSec;
    }

    void start(Priority = InheritPriority);
    void terminate();
    void stop();
    void init(int sampleRate,
              int channel,
              int sampleSize);

private:

    ZFFaudio();
    static QAtomicPointer<ZFFaudio>_instance;
    static QMutex _mutex;

    /* Thread */
    void run() override;

    int  ToPCM(char *,
               AVFrame *);

    /* QMEDIA */
    bool StartPlay();                 // 启动
    void PlayAudio(bool isplay);      // 暂停
    bool Write(const char *data,
               int         datasize); // 将音频写入
    void StopPlay();                  // 停止
    int  GetFree();                   // 获取剩余空间
    int sampleRate = 44100;           // 样本率
    int sampleSize = 32;              // 样本大小
    int channel = 2;                  ///通道数

    /*  */
    float curTimestampSec = 0.0;

    /* Device */
    QIODevice *io = NULL;
    QAudioOutput *output = NULL;

    bool _canBeRun = false;
};

#endif // ZFFAUDIO_H