myvtm/Other/libvideorender/ivideorenderinterface.h

#pragma  once

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

#include <stdint.h>
#include <stdarg.h>

typedef enum
{
	RVC_FLIP_NONE = 0x00000000,     /**< Do not flip */
	RVC_FLIP_HORIZONTAL = 0x00000001,    /**< flip horizontally */
	RVC_FLIP_VERTICAL = 0x00000002     /**< flip vertically */
} RVC_RendererFlip;

struct video_frame;

typedef struct videorender_param_s {
	int icx;
	int icy;
	uint32_t uvideowidth;
	uint32_t uvideoheight;
	uint32_t uwidth;
	uint32_t uheight;
	int ivideoformat;
	bool bmoveable;
}videorender_param_t;

enum render_loglevel {
	RENDER_LOG_DEBUG,
	RENDER_LOG_INFO,
	RENDER_LOG_WARN,
	RENDER_LOG_ERROR,
	RENDER_LOG_FATAL
};

typedef struct videorender_callback_s
{
	void (*debug)(render_loglevel elevel, void* user_data, const char* fmt, va_list arg);
	void (*onrenderfailed)();
	void (*onvideorenderexcption)();
	void* user_data;
}videorender_callback_t;


class IVideoRender 
{
public:
	virtual int VideoRenderSetParam(videorender_param_t* tparam) = 0;
	virtual int StartVideoRender() = 0;
	virtual int StopVideoRender() = 0;
	virtual void VideoRenderDestroy() = 0;
	virtual int ShowVideoWindow() = 0;
	virtual int HideVideoWindow() = 0;
	virtual int RenderVideoFrame(video_frame* pframe, RVC_RendererFlip eFlipType = RVC_FLIP_NONE) = 0;
};


extern "C" LIBVIDEORENDER_API IVideoRender* CreateVideoRenderObj(videorender_callback_t* pCallback);
extern "C" LIBVIDEORENDER_API void DestroyVideoRenderObj(IVideoRender* pIVideoRender);
extern "C" LIBVIDEORENDER_API int VideoRender_Init();
extern "C" LIBVIDEORENDER_API int VideoRender_Term();