video-pc/libs/Recorder/record_audio_wasapi.h

#ifndef RECORD_AUDIO_WASAPI
#define RECORD_AUDIO_WASAPI

#include "record_audio.h"

#ifdef _WIN32

#include "headers_mmdevice.h"

#endif // _WIN32

namespace am {
class record_audio_wasapi : public record_audio
{
public:
    record_audio_wasapi();
    ~record_audio_wasapi();

    virtual int init(const std::string &device_name, const std::string &device_id, bool is_input);

    virtual int start();

    virtual int pause();

    virtual int resume();

    virtual int stop();

    virtual const AVRational get_time_base();

    virtual int64_t get_start_time();

private:
    int64_t convert_layout(DWORD layout, WORD channels);

    void init_format(WAVEFORMATEX *wfex);

    int init_render();

    void render_loop();

    void process_data(AVFrame *frame, uint8_t *data, uint32_t sample_count, uint64_t device_ts);

    int do_record(AVFrame *frame);

    void record_loop();

    void clean_wasapi();

private:
    WAVEFORMATEX *_wfex;

    IMMDeviceEnumerator *_enumerator;

    IMMDevice *_device;

    IAudioClient *_capture_client;

    IAudioCaptureClient *_capture;

    IAudioRenderClient *_render;

    IAudioClient *_render_client;

    std::thread _render_thread;

    uint32_t _capture_sample_count;
    uint32_t _render_sample_count;

    HANDLE _ready_event;
    HANDLE _stop_event;
    HANDLE _render_event;

    bool _co_inited;

    bool _is_default;

    bool _use_device_ts;

    //define time stamps here
    int64_t _start_time;
};
} // namespace am

#endif // !RECORD_AUDIO_WASAPI