myvtm/Other/libaudiomgr/iaudiomgrinterface.h

#pragma  once

#ifdef _WIN32
#ifdef LIBAUDIOMGR_EXPORTS
#define LIBAUDIOMGR_API __declspec(dllexport)
#else
#define LIBAUDIOMGR_API __declspec(dllimport)
#endif
# elif ( defined(__GNUC__) &&  __GNUC__ >= 4 )
#define LIBAUDIOMGR_API __attribute__((visibility("default")))
#else // RVC_OS_WIN
#define LIBAUDIOMGR_API
#endif // RVC_OS_WIN

#include <stddef.h>
#include <stdarg.h>

typedef struct audiocap_param_s
{
	/** callbacks */
	int ideviceid;
	int isamprate;
	int ichannels;
	int isampleformat;
	double flatency;

	/* called from inner thread, should not block, can be null */
	void (*on_audio_callback)(const void* input, unsigned long audiolen,void* userdata);
	void* user_data;

}audiocap_param_t;

typedef struct audiomgr_callback_s{
	void (*debug)(void* user_data, const char* fmt, va_list arg);
	void (*on_audio_mgr_failed)();
	void (*on_audio_mgr_excption)();
	void* user_data;
}audiomgr_callback_t;

class IAudioMgr 
{
public:
	virtual int audio_mgr_initialize() = 0;
	virtual int audio_mgr_terminate() = 0;
	/**/
	virtual int audio_get_device_count(bool binput) = 0;
	virtual int audio_get_device_name(char* pstrbuf, size_t ulen, bool binput, int index) = 0;
	virtual int audio_get_device_id(const char* pstrname, bool binput) = 0;

	virtual int audio_get_device_volume(int* ivolume, const char* pstrname, bool binput) = 0;
	virtual int audio_set_device_volume(int ivolume, const char* pstrname, bool binput) = 0;

	virtual int set_audio_capture_params(audiocap_param_t* param) = 0;
	virtual int start_audio_capture() = 0;
	virtual int stop_audio_capture() = 0;
	virtual int audio_mgr_destroy() = 0;
};


extern "C" LIBAUDIOMGR_API IAudioMgr* CreateAudioMgrObj(audiomgr_callback_t* pCallback);
extern "C" LIBAUDIOMGR_API void DestroyIAudioMgrObj(IAudioMgr* pIAudioMgr);