videorendererrgb.h

《Visual C++视频/音频开发实用工程案例精选》一书的源代码

/**************************************************************************************
 *                                                                                    *
 *                                                                                    *
 **************************************************************************************/

#ifndef VIDEORENDERER_RGB_H
#define VIDEORENDERER_RGB_H

/*
 * 基类
 */

#include "MediaClasses.h"
#include "Resizer.h"

/*
 * 包括直接显示
 *
 */

#include <ddraw.h>

/*
 * 叠加视频缓冲器类
 */

class MediaVideoRendererRGB : public MediaItemVideoRenderer {

private:

	MediaItemSubtitler  *subtitler;

	LPDIRECTDRAW7        lpdd;
	LPDIRECTDRAWSURFACE7 lpddsPrimary;
	LPDIRECTDRAWCLIPPER  lpddClipper;
	LPDIRECTDRAWSURFACE7 lpddsBack;
	LPDIRECTDRAWSURFACE7 lpddsImage;

	unsigned int         width;
	unsigned int         height;
	unsigned int         bpp;
	media_video_mode_t   videoMode;

	unsigned int         fullscreenWidth;
	unsigned int         fullscreenHeight;
	BOOL                 fullscreenFlip;
	unsigned int         fullscreenVideoHeight;

	HWND                 hwndPlayback;

public:

	MediaVideoRendererRGB();
	~MediaVideoRendererRGB();

	/*
	 * 媒体项方法
	 */

	media_type_t  GetType();
	char         *GetName();

	MP_RESULT     Connect(MediaItem *item);
	MP_RESULT     ReleaseConnections();

	DWORD         GetCaps();
	MP_RESULT     Configure(HINSTANCE hInstance, HWND hwnd);

	/*
	 * 视频补偿方法
	 */

	MP_RESULT Init(HWND hwnd, unsigned int width, unsigned int height);
	MP_RESULT InitFullscreen(HWND hwnd, unsigned int width, unsigned int height);

	media_video_mode_t GetVideoMode();
	MP_RESULT          Stop();
	RECT              *GetFullscreenRects(); 

	MP_RESULT Draw(MediaBuffer *buffer, RECT *rect, int frameNumber, int invertFlag);
	MP_RESULT DrawFullscreen(MediaBuffer *buffer, int frameNumber, int invertFlag, int desktopMode);

	MP_RESULT Close();
};

#endif