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/****************************************************************************//* *//* AVIFMT.H - Include file for working with AVI files *//* *//* Note: You must include WINDOWS.H and MMSYSTEM.H before *//* including this file. *//* *//* Copyright (c) 1991-1998, Microsoft Corp. All rights reserved. *//* *//* *//****************************************************************************/
#ifndef _INC_AVIFMT
#define _INC_AVIFMT 100 /* version number * 100 + revision */
#ifdef __cplusplus
extern "C" { /* Assume C declarations for C++ */#endif /* __cplusplus */
// begin_vfw32
#ifdef _MSC_VER
#pragma warning(disable:4200)
#endif
/* The following is a short description of the AVI file format. Please
* see the accompanying documentation for a full explanation. * * An AVI file is the following RIFF form: * * RIFF('AVI' * LIST('hdrl' * avih(<MainAVIHeader>) * LIST ('strl' * strh(<Stream header>) * strf(<Stream format>) * ... additional header data * LIST('movi' * { LIST('rec' * SubChunk... * ) * | SubChunk } .... * ) * [ <AVIIndex> ] * ) * * The main file header specifies how many streams are present. For * each one, there must be a stream header chunk and a stream format * chunk, enlosed in a 'strl' LIST chunk. The 'strf' chunk contains * type-specific format information; for a video stream, this should * be a BITMAPINFO structure, including palette. For an audio stream, * this should be a WAVEFORMAT (or PCMWAVEFORMAT) structure. * * The actual data is contained in subchunks within the 'movi' LIST * chunk. The first two characters of each data chunk are the * stream number with which that data is associated. * * Some defined chunk types: * Video Streams: * ##db: RGB DIB bits * ##dc: RLE8 compressed DIB bits * ##pc: Palette Change * * Audio Streams: * ##wb: waveform audio bytes * * The grouping into LIST 'rec' chunks implies only that the contents of * the chunk should be read into memory at the same time. This * grouping is used for files specifically intended to be played from * CD-ROM. * * The index chunk at the end of the file should contain one entry for * each data chunk in the file. * * Limitations for the current software: * Only one video stream and one audio stream are allowed. * The streams must start at the beginning of the file. * * * To register codec types please obtain a copy of the Multimedia * Developer Registration Kit from: * * Microsoft Corporation * Multimedia Systems Group * Product Marketing * One Microsoft Way * Redmond, WA 98052-6399 * */
#ifndef mmioFOURCC
#define mmioFOURCC( ch0, ch1, ch2, ch3 ) \
( (DWORD)(BYTE)(ch0) | ( (DWORD)(BYTE)(ch1) << 8 ) | \ ( (DWORD)(BYTE)(ch2) << 16 ) | ( (DWORD)(BYTE)(ch3) << 24 ) )#endif
/* Macro to make a TWOCC out of two characters */#ifndef aviTWOCC
#define aviTWOCC(ch0, ch1) ((WORD)(BYTE)(ch0) | ((WORD)(BYTE)(ch1) << 8))
#endif
typedef WORD TWOCC;
/* form types, list types, and chunk types */#define formtypeAVI mmioFOURCC('A', 'V', 'I', ' ')
#define listtypeAVIHEADER mmioFOURCC('h', 'd', 'r', 'l')
#define ckidAVIMAINHDR mmioFOURCC('a', 'v', 'i', 'h')
#define listtypeSTREAMHEADER mmioFOURCC('s', 't', 'r', 'l')
#define ckidSTREAMHEADER mmioFOURCC('s', 't', 'r', 'h')
#define ckidSTREAMFORMAT mmioFOURCC('s', 't', 'r', 'f')
#define ckidSTREAMHANDLERDATA mmioFOURCC('s', 't', 'r', 'd')
#define ckidSTREAMNAME mmioFOURCC('s', 't', 'r', 'n')
#define listtypeAVIMOVIE mmioFOURCC('m', 'o', 'v', 'i')
#define listtypeAVIRECORD mmioFOURCC('r', 'e', 'c', ' ')
#define ckidAVINEWINDEX mmioFOURCC('i', 'd', 'x', '1')
/*
** Stream types for the <fccType> field of the stream header.*/#define streamtypeVIDEO mmioFOURCC('v', 'i', 'd', 's')
#define streamtypeAUDIO mmioFOURCC('a', 'u', 'd', 's')
#define streamtypeMIDI mmioFOURCC('m', 'i', 'd', 's')
#define streamtypeTEXT mmioFOURCC('t', 'x', 't', 's')
/* Basic chunk types */#define cktypeDIBbits aviTWOCC('d', 'b')
#define cktypeDIBcompressed aviTWOCC('d', 'c')
#define cktypePALchange aviTWOCC('p', 'c')
#define cktypeWAVEbytes aviTWOCC('w', 'b')
/* Chunk id to use for extra chunks for padding. */#define ckidAVIPADDING mmioFOURCC('J', 'U', 'N', 'K')
/*
** Useful macros**** Warning: These are nasty macro, and MS C 6.0 compiles some of them** incorrectly if optimizations are on. Ack.*/
/* Macro to get stream number out of a FOURCC ckid */#define FromHex(n) (((n) >= 'A') ? ((n) + 10 - 'A') : ((n) - '0'))
#define StreamFromFOURCC(fcc) ((WORD) ((FromHex(LOBYTE(LOWORD(fcc))) << 4) + \
(FromHex(HIBYTE(LOWORD(fcc))))))
/* Macro to get TWOCC chunk type out of a FOURCC ckid */#define TWOCCFromFOURCC(fcc) HIWORD(fcc)
/* Macro to make a ckid for a chunk out of a TWOCC and a stream number
** from 0-255.*/#define ToHex(n) ((BYTE) (((n) > 9) ? ((n) - 10 + 'A') : ((n) + '0')))
#define MAKEAVICKID(tcc, stream) \
MAKELONG((ToHex((stream) & 0x0f) << 8) | \ (ToHex(((stream) & 0xf0) >> 4)), tcc)
/*
** Main AVI File Header*/ /* flags for use in <dwFlags> in AVIFileHdr */#define AVIF_HASINDEX 0x00000010 // Index at end of file
#define AVIF_MUSTUSEINDEX 0x00000020
#define AVIF_ISINTERLEAVED 0x00000100
#define AVIF_TRUSTCKTYPE 0x00000800 // Use CKType to find key frames
#define AVIF_WASCAPTUREFILE 0x00010000
#define AVIF_COPYRIGHTED 0x00020000
/* The AVI File Header LIST chunk should be padded to this size */#define AVI_HEADERSIZE 2048 // size of AVI header list
typedef struct{ DWORD dwMicroSecPerFrame; // frame display rate (or 0L)
DWORD dwMaxBytesPerSec; // max. transfer rate
DWORD dwPaddingGranularity; // pad to multiples of this
// size; normally 2K.
DWORD dwFlags; // the ever-present flags
DWORD dwTotalFrames; // # frames in file
DWORD dwInitialFrames; DWORD dwStreams; DWORD dwSuggestedBufferSize;
DWORD dwWidth; DWORD dwHeight;
DWORD dwReserved[4];} MainAVIHeader;
/*
** Stream header*/
#define AVISF_DISABLED 0x00000001
#define AVISF_VIDEO_PALCHANGES 0x00010000
typedef struct { FOURCC fccType; FOURCC fccHandler; DWORD dwFlags; /* Contains AVITF_* flags */ WORD wPriority; WORD wLanguage; DWORD dwInitialFrames; DWORD dwScale; DWORD dwRate; /* dwRate / dwScale == samples/second */ DWORD dwStart; DWORD dwLength; /* In units above... */ DWORD dwSuggestedBufferSize; DWORD dwQuality; DWORD dwSampleSize; RECT rcFrame;} AVIStreamHeader;
/* Flags for index */#define AVIIF_LIST 0x00000001L // chunk is a 'LIST'
#define AVIIF_KEYFRAME 0x00000010L // this frame is a key frame.
#define AVIIF_NOTIME 0x00000100L // this frame doesn't take any time
#define AVIIF_COMPUSE 0x0FFF0000L // these bits are for compressor use
typedef struct{ DWORD ckid; DWORD dwFlags; DWORD dwChunkOffset; // Position of chunk
DWORD dwChunkLength; // Length of chunk
} AVIINDEXENTRY;
/*
** Palette change chunk**** Used in video streams.*/typedef struct{ BYTE bFirstEntry; /* first entry to change */ BYTE bNumEntries; /* # entries to change (0 if 256) */ WORD wFlags; /* Mostly to preserve alignment... */ PALETTEENTRY peNew[]; /* New color specifications */} AVIPALCHANGE;
// end_vfw32
#ifdef __cplusplus
} /* End of extern "C" { */#endif /* __cplusplus */
#endif /* _INC_AVIFMT */
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