avi.h

来自「ESS3890+SL原代码（1*16内存）」· C头文件 代码 · 共 152 行

/* Copyright 2002, ESS Technology, Inc.                                 */
/* SCCSID @(#)avi.h	4.1 11/05/02 */

/* 
 * AVI Header file
 */

#ifndef _AVIFMT_H
#define _AVIFMT_H

/* some usefull types */

typedef unsigned short WORD;
typedef unsigned long  DWORD;
typedef signed long    LONG;
typedef unsigned char  uCHAR;
typedef signed char    sCHAR;
typedef DWORD          FOURCC;    /* Type of FOUR Character Codes */

#define MAX_V_STREAM 2
#define MAX_A_STREAM 2

/* Macro to convert expressions of form 'F','O','U','R' to
   numbers of type FOURCC: */

#define MAKEFOURCC(a,b,c,d) ( ((DWORD)a)      | (((DWORD)b)<< 8) | \
                             (((DWORD)c)<<16) | (((DWORD)d)<<24)  )

#define UNIX
#ifdef UNIX 
#define SWAPW(x)  ((x << 8) | ((x >> 8) & 0xff))
#define SWAPL(x)  (((x >> 24) & 0xff)      | ((x >> 8) & 0xff00)     | \
                   ((x << 8) & 0xff0000L) | ((x << 24) & 0xff000000L))
#define SWAP24(x) (((x >> 16) & 0xff) | (x & 0xff00) | ((x << 16) & 0xff0000L))
#else
#define SWAPW(x)  (x)
#define SWAPL(x)  (x)
#define SWAP24(x) (x)
#endif

/* The only FOURCCs interpreted by this program: */

#define NULLtag MAKEFOURCC('0','0','0','0')
#define RIFFtag MAKEFOURCC('R','I','F','F')
#define LISTtag MAKEFOURCC('L','I','S','T')
#define AVItag  MAKEFOURCC('A','V','I',' ')
#define hdrltag MAKEFOURCC('h','d','r','l')
#define avihtag MAKEFOURCC('a','v','i','h')
#define strltag MAKEFOURCC('s','t','r','l')
#define strhtag MAKEFOURCC('s','t','r','h')
#define strftag MAKEFOURCC('s','t','r','f')
#define movitag MAKEFOURCC('m','o','v','i')
#define Tag00db MAKEFOURCC('0','0','d','b')
#define Tag00dc MAKEFOURCC('0','0','d','c')
#define Tag01wb MAKEFOURCC('0','1','w','b')
#define JUNKtag MAKEFOURCC('J','U','N','K')
#define VIDStag MAKEFOURCC('v','i','d','s')
#define AUDStag MAKEFOURCC('a','u','d','s')

/* possible video formats */
#define TagMJPG MAKEFOURCC('M','J','P','G')
#define TagDIB  MAKEFOURCC('D','I','B',' ')
#define TagRGB  MAKEFOURCC('R','G','B',' ')

/* structs of the AVI header */

typedef struct {
  DWORD dwMicroSecPerFrame;
  DWORD dwMaxBytesPerSec;
  DWORD dwReserved1;
  DWORD dwFlags;
  DWORD dwTotalFrames;
  DWORD dwInitialFrames;
  DWORD dwStreams;
  DWORD dwSuggestedBufferSize;
  DWORD dwWidth;
  DWORD dwHeight;
  DWORD dwReserved2;
} tMainAVIHeader;

typedef struct {
  FOURCC fccType;
  FOURCC fccHandler;
  DWORD dwFlags;
  DWORD dwReserved1;
  DWORD dwInitialFrames;
  DWORD dwScale;
  DWORD dwRate;
  DWORD dwStart;
  DWORD dwLength;
  DWORD dwSuggestedBufferSize;
  DWORD dwQuality;
  DWORD dwSampleSize;
  DWORD dwReserved2;
  DWORD dwReserved3;
} tAVIStreamHeader;

typedef struct {
  DWORD biSize;
  LONG  biWidth;
  LONG  biHeight;
  WORD  biPlanes;
  WORD  biBitCount;
  DWORD biCompression;
  DWORD biSizeImage;
  LONG  biXPelsPerMeter;
  LONG  biYPelsPerMeter;
  DWORD biClrUsed;
  DWORD biClrImportant;
} tBitmapInfoHeader;

typedef struct {
  WORD  wFormatTag;
  WORD  nChannels;
  DWORD nSamplesPerSec;
  DWORD nAvgBytesPerSec;
  WORD  nBlockAlign;
  WORD  wBitsPerSample;
} tWaveFormatEx;

typedef struct {
  WORD  Width;
  WORD  Height;
  DWORD Frames;
  DWORD MSPerFrame;
  DWORD vHandler;
  DWORD vCompression;
  WORD  vPlanes;
  WORD  vBitsPerPixel;
  WORD  aFormat;
  WORD  aChannels;
  DWORD aSamplesPerSec;
  WORD  aBitsPerSample;
} tGlobalInfo;

typedef struct {
  FOURCC listId;     /* 'LIST' */
  DWORD  dwSize;     /* chunk size */
  FOURCC ckId;       /* chunk id */
} tListHdr;

typedef struct {
  FOURCC ckId;
  DWORD  dwSize;
} tChunkHdr;

/* Function phototype */
void AVI_init(void);
int  AVI_demux(void);
void ABV_fill_up(int *);
#endif