mpeg1vid.h

一个不错的硬盘播放器程序,包含VFD显示程序,红外线遥控程序,硬盘读写程序,及解码程序等.

/* Copyright 1996, ESS Technology, Inc.					*/
/* SCCSID @(#)mpeg1vid.h	1.25 2/23/98 */

/*
 * $Log$
 */

/************************************************************
 * provide external interfacing for mpeg1vid.c
 ************************************************************/
#ifndef _MPEG1VID_H_
#define _MPEG1VID_H_

/************************************************************
 * Variables visible to outside
 ************************************************************/
GBLDEF_0(int VID_decoding_in_progress, 0);
GBLDEF_0(int VID_pic_type_next, 0);
GBLDEF_0(int VID_current_row, 0);
GBLDEF_0(int VID_pic_rate, 0);
GBLDEF_0(int VID_frame_count, 0);
GBLDEF_0(int VID_error_concealment, 0);
GBLDEF(int VID_first_time_seek, 1);
GBLDEF_0(int VID_pic_type, 0);
#if 0
GBLDEF_0(int VID_error_timeout, 0);
#endif

/************************************************************
 * global functions to be exported
 ************************************************************/
EXPORT void 	VID_init(void);
EXPORT int	VID_decode(void);
EXPORT int	VID_save_q_matrices(int *save);
EXPORT void	VID_restore_q_matrices(int status, int *save);
#ifdef PLAY20
EXPORT void	VID_reset_MB_parameters(void);
#endif
#ifdef ERROR_CONCEALMENT
EXPORT void 	VID_copy(void);
#endif
/************************************************************
 * Picture coding type vars - MPEG-2, p.47 
 ************************************************************/
typedef enum {
    PIC_RESERVED1		=0,
    PIC_INTRA			=1,
    PIC_PRED			=2,
    PIC_BIDER 			=3,
    PIC_DC 			=4,
    PIC_RESERVED2		=5,
    PIC_RESERVED3		=6,
    PIC_RESERVED4		=7,
} PIC_TYPE;

#endif /*_MPEG1VID_H_*/