blob: 5ba2990cc4f2f3b6e3f7ac0a94d27288ec9cf696 (
plain) (
tree)
|
|
//------------------------------------------------------------------------------
// File: AVIRIFF.h
//
// Desc: Structures and defines for the RIFF AVI file format extended to
// handle very large/long files.
//
// Copyright (c) 1996-2001, Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------------
// Disable some compiler warnings
#pragma warning(disable: 4097 4511 4512 4514 4705)
#if !defined AVIRIFF_H
#define AVIRIFF_H
#if !defined NUMELMS
#define NUMELMS(aa) (sizeof(aa)/sizeof((aa)[0]))
#endif
// all structures in this file are packed on word boundaries
//
#include <pshpack2.h>
/*
* heres the general layout of an AVI riff file (new format)
*
* RIFF (3F??????) AVI <- not more than 1 GB in size
* LIST (size) hdrl
* avih (0038)
* LIST (size) strl
* strh (0038)
* strf (????)
* indx (3ff8) <- size may vary, should be sector sized
* LIST (size) strl
* strh (0038)
* strf (????)
* indx (3ff8) <- size may vary, should be sector sized
* LIST (size) odml
* dmlh (????)
* JUNK (size) <- fill to align to sector - 12
* LIST (7f??????) movi <- aligned on sector - 12
* 00dc (size) <- sector aligned
* 01wb (size) <- sector aligned
* ix00 (size) <- sector aligned
* idx1 (00??????) <- sector aligned
* RIFF (7F??????) AVIX
* JUNK (size) <- fill to align to sector -12
* LIST (size) movi
* 00dc (size) <- sector aligned
* RIFF (7F??????) AVIX <- not more than 2GB in size
* JUNK (size) <- fill to align to sector - 12
* LIST (size) movi
* 00dc (size) <- sector aligned
*
*-===================================================================*/
//
// structures for manipulating RIFF headers
//
#define FCC(ch4) ((((DWORD)(ch4) & 0xFF) << 24) | \
(((DWORD)(ch4) & 0xFF00) << 8) | \
(((DWORD)(ch4) & 0xFF0000) >> 8) | \
(((DWORD)(ch4) & 0xFF000000) >> 24))
typedef struct _riffchunk {
FOURCC fcc;
DWORD cb;
} RIFFCHUNK, * LPRIFFCHUNK;
typedef struct _rifflist {
FOURCC fcc;
DWORD cb;
FOURCC fccListType;
} RIFFLIST, * LPRIFFLIST;
#define RIFFROUND(cb) ((cb) + ((cb)&1))
#define RIFFNEXT(pChunk) (LPRIFFCHUNK)((LPBYTE)(pChunk) \
+ sizeof(RIFFCHUNK) \
+ RIFFROUND(((LPRIFFCHUNK)pChunk)->cb))
//
// ==================== avi header structures ===========================
//
// main header for the avi file (compatibility header)
//
#define ckidMAINAVIHEADER FCC('avih')
typedef struct _avimainheader {
FOURCC fcc; // 'avih'
DWORD cb; // size of this structure -8
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
#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
DWORD dwTotalFrames; // # frames in first movi list
DWORD dwInitialFrames;
DWORD dwStreams;
DWORD dwSuggestedBufferSize;
DWORD dwWidth;
DWORD dwHeight;
DWORD dwReserved[4];
} AVIMAINHEADER;
#define ckidODML FCC('odml')
#define ckidAVIEXTHEADER FCC('dmlh')
typedef struct _aviextheader {
FOURCC fcc; // 'dmlh'
DWORD cb; // size of this structure -8
DWORD dwGrandFrames; // total number of frames in the file
DWORD dwFuture[61]; // to be defined later
} AVIEXTHEADER;
//
// structure of an AVI stream header riff chunk
//
#define ckidSTREAMLIST FCC('strl')
#ifndef ckidSTREAMHEADER
#define ckidSTREAMHEADER FCC('strh')
#endif
typedef struct _avistreamheader {
FOURCC fcc; // 'strh'
DWORD cb; // size of this structure - 8
FOURCC fccType; // stream type codes
#ifndef streamtypeVIDEO
#define streamtypeVIDEO FCC('vids')
#define streamtypeAUDIO FCC('auds')
#define streamtypeMIDI FCC('mids')
#define streamtypeTEXT FCC('txts')
#endif
FOURCC fccHandler;
DWORD dwFlags;
#define AVISF_DISABLED 0x00000001
#define AVISF_VIDEO_PALCHANGES 0x00010000
WORD wPriority;
WORD wLanguage;
DWORD dwInitialFrames;
DWORD dwScale;
DWORD dwRate; // dwRate/dwScale is stream tick rate in ticks/sec
DWORD dwStart;
DWORD dwLength;
DWORD dwSuggestedBufferSize;
DWORD dwQuality;
DWORD dwSampleSize;
struct {
short int left;
short int top;
short int right;
short int bottom;
} rcFrame;
} AVISTREAMHEADER;
//
// structure of an AVI stream format chunk
//
#ifndef ckidSTREAMFORMAT
#define ckidSTREAMFORMAT FCC('strf')
#endif
//
// avi stream formats are different for each stream type
//
// BITMAPINFOHEADER for video streams
// WAVEFORMATEX or PCMWAVEFORMAT for audio streams
// nothing for text streams
// nothing for midi streams
#pragma warning(disable:4200)
//
// structure of old style AVI index
//
#define ckidAVIOLDINDEX FCC('idx1')
typedef struct _avioldindex {
FOURCC fcc; // 'idx1'
DWORD cb; // size of this structure -8
struct _avioldindex_entry {
DWORD dwChunkId;
DWORD dwFlags;
#ifndef AVIIF_LIST
#define AVIIF_LIST 0x00000001
#define AVIIF_KEYFRAME 0x00000010
#endif
#define AVIIF_NO_TIME 0x00000100
#define AVIIF_COMPRESSOR 0x0FFF0000 // unused?
DWORD dwOffset; // offset of riff chunk header for the data
DWORD dwSize; // size of the data (excluding riff header size)
} aIndex[]; // size of this array
} AVIOLDINDEX;
//
// ============ structures for timecode in an AVI file =================
//
#ifndef TIMECODE_DEFINED
#define TIMECODE_DEFINED
// defined
// timecode time structure
//
typedef union _timecode {
struct {
WORD wFrameRate;
WORD wFrameFract;
LONG cFrames;
};
DWORDLONG qw;
} TIMECODE;
#endif // TIMECODE_DEFINED
#define TIMECODE_RATE_30DROP 0 // this MUST be zero
// struct for all the SMPTE timecode info
//
typedef struct _timecodedata {
TIMECODE time;
DWORD dwSMPTEflags;
DWORD dwUser;
} TIMECODEDATA;
// dwSMPTEflags masks/values
//
#define TIMECODE_SMPTE_BINARY_GROUP 0x07
#define TIMECODE_SMPTE_COLOR_FRAME 0x08
//
// ============ structures for new style AVI indexes =================
//
// index type codes
//
#define AVI_INDEX_OF_INDEXES 0x00
#define AVI_INDEX_OF_CHUNKS 0x01
#define AVI_INDEX_OF_TIMED_CHUNKS 0x02
#define AVI_INDEX_OF_SUB_2FIELD 0x03
#define AVI_INDEX_IS_DATA 0x80
// index subtype codes
//
#define AVI_INDEX_SUB_DEFAULT 0x00
// INDEX_OF_CHUNKS subtype codes
//
#define AVI_INDEX_SUB_2FIELD 0x01
// meta structure of all avi indexes
//
typedef struct _avimetaindex {
FOURCC fcc;
UINT cb;
WORD wLongsPerEntry;
BYTE bIndexSubType;
BYTE bIndexType;
DWORD nEntriesInUse;
DWORD dwChunkId;
DWORD dwReserved[3];
DWORD adwIndex[];
} AVIMETAINDEX;
#define STDINDEXSIZE 0x4000
#define NUMINDEX(wLongsPerEntry) ((STDINDEXSIZE-32)/4/(wLongsPerEntry))
#define NUMINDEXFILL(wLongsPerEntry) ((STDINDEXSIZE/4) - NUMINDEX(wLongsPerEntry))
// structure of a super index (INDEX_OF_INDEXES)
//
#define ckidAVISUPERINDEX FCC('indx')
typedef struct _avisuperindex {
FOURCC fcc; // 'indx'
UINT cb; // size of this structure
WORD wLongsPerEntry; // ==4
BYTE bIndexSubType; // ==0 (frame index) or AVI_INDEX_SUB_2FIELD
BYTE bIndexType; // ==AVI_INDEX_OF_INDEXES
DWORD nEntriesInUse; // offset of next unused entry in aIndex
DWORD dwChunkId; // chunk ID of chunks being indexed, (i.e. RGB8)
DWORD dwReserved[3]; // must be 0
struct _avisuperindex_entry {
DWORDLONG qwOffset; // 64 bit offset to sub index chunk
DWORD dwSize; // 32 bit size of sub index chunk
DWORD dwDuration; // time span of subindex chunk (in stream ticks)
} aIndex[NUMINDEX(4)];
} AVISUPERINDEX;
#define Valid_SUPERINDEX(pi) (*(DWORD *)(&((pi)->wLongsPerEntry)) == (4 | (AVI_INDEX_OF_INDEXES << 24)))
// struct of a standard index (AVI_INDEX_OF_CHUNKS)
//
typedef struct _avistdindex_entry {
DWORD dwOffset; // 32 bit offset to data (points to data, not riff header)
DWORD dwSize; // 31 bit size of data (does not include size of riff header), bit 31 is deltaframe bit
} AVISTDINDEX_ENTRY;
#define AVISTDINDEX_DELTAFRAME ( 0x80000000) // Delta frames have the high bit set
#define AVISTDINDEX_SIZEMASK (~0x80000000)
typedef struct _avistdindex {
FOURCC fcc; // 'indx' or '##ix'
UINT cb; // size of this structure
WORD wLongsPerEntry; // ==2
BYTE bIndexSubType; // ==0
BYTE bIndexType; // ==AVI_INDEX_OF_CHUNKS
DWORD nEntriesInUse; // offset of next unused entry in aIndex
DWORD dwChunkId; // chunk ID of chunks being indexed, (i.e. RGB8)
DWORDLONG qwBaseOffset; // base offset that all index intries are relative to
DWORD dwReserved_3; // must be 0
AVISTDINDEX_ENTRY aIndex[NUMINDEX(2)];
} AVISTDINDEX;
// struct of a time variant standard index (AVI_INDEX_OF_TIMED_CHUNKS)
//
typedef struct _avitimedindex_entry {
DWORD dwOffset; // 32 bit offset to data (points to data, not riff header)
DWORD dwSize; // 31 bit size of data (does not include size of riff header) (high bit is deltaframe bit)
DWORD dwDuration; // how much time the chunk should be played (in stream ticks)
} AVITIMEDINDEX_ENTRY;
typedef struct _avitimedindex {
FOURCC fcc; // 'indx' or '##ix'
UINT cb; // size of this structure
WORD wLongsPerEntry; // ==3
BYTE bIndexSubType; // ==0
BYTE bIndexType; // ==AVI_INDEX_OF_TIMED_CHUNKS
DWORD nEntriesInUse; // offset of next unused entry in aIndex
DWORD dwChunkId; // chunk ID of chunks being indexed, (i.e. RGB8)
DWORDLONG qwBaseOffset; // base offset that all index intries are relative to
DWORD dwReserved_3; // must be 0
AVITIMEDINDEX_ENTRY aIndex[NUMINDEX(3)];
DWORD adwTrailingFill[NUMINDEXFILL(3)]; // to align struct to correct size
} AVITIMEDINDEX;
// structure of a timecode stream
//
typedef struct _avitimecodeindex {
FOURCC fcc; // 'indx' or '##ix'
UINT cb; // size of this structure
WORD wLongsPerEntry; // ==4
BYTE bIndexSubType; // ==0
BYTE bIndexType; // ==AVI_INDEX_IS_DATA
DWORD nEntriesInUse; // offset of next unused entry in aIndex
DWORD dwChunkId; // 'time'
DWORD dwReserved[3]; // must be 0
TIMECODEDATA aIndex[NUMINDEX(sizeof(TIMECODEDATA)/sizeof(LONG))];
} AVITIMECODEINDEX;
// structure of a timecode discontinuity list (when wLongsPerEntry == 7)
//
typedef struct _avitcdlindex_entry {
DWORD dwTick; // stream tick time that maps to this timecode value
TIMECODE time;
DWORD dwSMPTEflags;
DWORD dwUser;
TCHAR szReelId[12];
} AVITCDLINDEX_ENTRY;
typedef struct _avitcdlindex {
FOURCC fcc; // 'indx' or '##ix'
UINT cb; // size of this structure
WORD wLongsPerEntry; // ==7 (must be 4 or more all 'tcdl' indexes
BYTE bIndexSubType; // ==0
BYTE bIndexType; // ==AVI_INDEX_IS_DATA
DWORD nEntriesInUse; // offset of next unused entry in aIndex
DWORD dwChunkId; // 'tcdl'
DWORD dwReserved[3]; // must be 0
AVITCDLINDEX_ENTRY aIndex[NUMINDEX(7)];
DWORD adwTrailingFill[NUMINDEXFILL(7)]; // to align struct to correct size
} AVITCDLINDEX;
typedef struct _avifieldindex_chunk {
FOURCC fcc; // 'ix##'
DWORD cb; // size of this structure
WORD wLongsPerEntry; // must be 3 (size of each entry in
// aIndex array)
BYTE bIndexSubType; // AVI_INDEX_2FIELD
BYTE bIndexType; // AVI_INDEX_OF_CHUNKS
DWORD nEntriesInUse; //
DWORD dwChunkId; // '##dc' or '##db'
DWORDLONG qwBaseOffset; // offsets in aIndex array are relative to this
DWORD dwReserved3; // must be 0
struct _avifieldindex_entry {
DWORD dwOffset;
DWORD dwSize; // size of all fields
// (bit 31 set for NON-keyframes)
DWORD dwOffsetField2; // offset to second field
} aIndex[ ];
} AVIFIELDINDEX, * PAVIFIELDINDEX;
#include <poppack.h>
#endif
|
