ogmreader.h

一个播放器 使用了evc 大家可以参考下 哦

 /***************************************************************************************
 *This program is free software; you can redistribute it and/or modify					*
 * it under the terms of the GNU General Public License as published by					*
 * the Free Software Foundation; either version 2 of the License, or					*
 * (at your option) any later version.													*
 *																						*
 * The GPL can be found at: http://www.gnu.org/copyleft/gpl.html						*
 *																						*
 *																						*	
 ****************************************************************************************
 * Authors:																			  *
 *          Marc Dukette                                                              *
 **************************************************************************************/

#ifdef __cplusplus
extern "C" {
#endif 

#ifndef AVI_DECAPS_H
#define AVI_DECAPS_H

/*
 * includes
 */
#include <windows.h>
#include <windowsx.h>
#include <malloc.h>
#include <stdlib.h>
#include "../avinterface.h"

/*
 * SOME USEFUL MACROS
 */

//#define AVI_MAX_LEN 2000000000
//#define HEADERBYTES 2048
#define PAD_EVEN(x) ( ((x)+1) & ~1 )
#define AVIIF_KEYFRAME	0x00000010L

/*
 * INDEX TYPES
 */

typedef struct
{
  long pos;
  long len;
  BYTE flags;

} video_index_entry;

typedef struct
{
   long pos;
   long len;
   long tot;

} audio_index_entry;


/*
 * Main Class
 */

typedef struct _ogminfo
{
	HANDLE             hIOMutex;
} ogminfo;




	int AVIDecaps_IsAVI();
	int AVIDecaps_FillHeader(int getIndex);
	int AVIDecaps_AddIndexEntry(char *tag, 
			          long flags, 
			          long pos, 
			          long len);
	BOOL AVIDecaps_isKeyframe(long frame);
	int AVIDecaps_ReadAudio(char *audbuf, int bytes);


	int               AVIDecaps_Open(LPTSTR lpFilename, int Cache, int CacheSize,videoinfo** vidinfo);
	double            AVIDecaps_FrameRate();
	int               AVIDecaps_NextVideoFrame(char *buffer, int drop);

	int               AVIDecaps_VideoSeek(long frame);
	int               AVIDecaps_AudioSeek(long bytes);

	int               AVIDecaps_NextKeyFrame();
	int				  AVIDecaps_PreviousKeyFrame();

	int               AVIDecaps_Seek(int percent, int isFrame);
	int               AVIDecaps_ReSeekAudio();

//	int               AVIDecaps_SampleSize();

	int AVIDecaps_Rewind();

	double AVIDecaps_GetProgress();

	int AVIDecaps_Close();
	void InitializeReader(reader* rd);

#endif
#ifdef __cplusplus
}
#endif