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403 lines
13 KiB
C
403 lines
13 KiB
C
//------------------------------------------------------------------------------
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// File: AVIRIFF.h
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//
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// Desc: Structures and defines for the RIFF AVI file format extended to
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// handle very large/long files.
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//
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// Copyright (c) 1996-2001, Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------------------------
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// Disable some compiler warnings
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#pragma warning(disable: 4097 4511 4512 4514 4705)
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#if !defined AVIRIFF_H
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#define AVIRIFF_H
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#if !defined NUMELMS
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#define NUMELMS(aa) (sizeof(aa)/sizeof((aa)[0]))
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#endif
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// all structures in this file are packed on word boundaries
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//
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#include <pshpack2.h>
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/*
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* heres the general layout of an AVI riff file (new format)
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*
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* RIFF (3F??????) AVI <- not more than 1 GB in size
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* LIST (size) hdrl
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* avih (0038)
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* LIST (size) strl
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* strh (0038)
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* strf (????)
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* indx (3ff8) <- size may vary, should be sector sized
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* LIST (size) strl
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* strh (0038)
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* strf (????)
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* indx (3ff8) <- size may vary, should be sector sized
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* LIST (size) odml
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* dmlh (????)
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* JUNK (size) <- fill to align to sector - 12
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* LIST (7f??????) movi <- aligned on sector - 12
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* 00dc (size) <- sector aligned
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* 01wb (size) <- sector aligned
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* ix00 (size) <- sector aligned
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* idx1 (00??????) <- sector aligned
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* RIFF (7F??????) AVIX
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* JUNK (size) <- fill to align to sector -12
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* LIST (size) movi
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* 00dc (size) <- sector aligned
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* RIFF (7F??????) AVIX <- not more than 2GB in size
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* JUNK (size) <- fill to align to sector - 12
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* LIST (size) movi
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* 00dc (size) <- sector aligned
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*
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*-===================================================================*/
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//
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// structures for manipulating RIFF headers
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//
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#define FCC(ch4) ((((DWORD)(ch4) & 0xFF) << 24) | \
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(((DWORD)(ch4) & 0xFF00) << 8) | \
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(((DWORD)(ch4) & 0xFF0000) >> 8) | \
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(((DWORD)(ch4) & 0xFF000000) >> 24))
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typedef struct _riffchunk {
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FOURCC fcc;
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DWORD cb;
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} RIFFCHUNK, * LPRIFFCHUNK;
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typedef struct _rifflist {
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FOURCC fcc;
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DWORD cb;
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FOURCC fccListType;
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} RIFFLIST, * LPRIFFLIST;
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#define RIFFROUND(cb) ((cb) + ((cb)&1))
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#define RIFFNEXT(pChunk) (LPRIFFCHUNK)((LPBYTE)(pChunk) \
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+ sizeof(RIFFCHUNK) \
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+ RIFFROUND(((LPRIFFCHUNK)pChunk)->cb))
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//
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// ==================== avi header structures ===========================
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//
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// main header for the avi file (compatibility header)
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//
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#define ckidMAINAVIHEADER FCC('avih')
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typedef struct _avimainheader {
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FOURCC fcc; // 'avih'
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DWORD cb; // size of this structure -8
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DWORD dwMicroSecPerFrame; // frame display rate (or 0L)
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DWORD dwMaxBytesPerSec; // max. transfer rate
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DWORD dwPaddingGranularity; // pad to multiples of this size; normally 2K.
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DWORD dwFlags; // the ever-present flags
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#define AVIF_HASINDEX 0x00000010 // Index at end of file?
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#define AVIF_MUSTUSEINDEX 0x00000020
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#define AVIF_ISINTERLEAVED 0x00000100
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#define AVIF_TRUSTCKTYPE 0x00000800 // Use CKType to find key frames
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#define AVIF_WASCAPTUREFILE 0x00010000
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#define AVIF_COPYRIGHTED 0x00020000
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DWORD dwTotalFrames; // # frames in first movi list
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DWORD dwInitialFrames;
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DWORD dwStreams;
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DWORD dwSuggestedBufferSize;
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DWORD dwWidth;
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DWORD dwHeight;
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DWORD dwReserved[4];
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} AVIMAINHEADER;
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#define ckidODML FCC('odml')
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#define ckidAVIEXTHEADER FCC('dmlh')
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typedef struct _aviextheader {
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FOURCC fcc; // 'dmlh'
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DWORD cb; // size of this structure -8
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DWORD dwGrandFrames; // total number of frames in the file
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DWORD dwFuture[61]; // to be defined later
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} AVIEXTHEADER;
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//
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// structure of an AVI stream header riff chunk
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//
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#define ckidSTREAMLIST FCC('strl')
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#ifndef ckidSTREAMHEADER
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#define ckidSTREAMHEADER FCC('strh')
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#endif
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typedef struct _avistreamheader {
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FOURCC fcc; // 'strh'
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DWORD cb; // size of this structure - 8
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FOURCC fccType; // stream type codes
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#ifndef streamtypeVIDEO
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#define streamtypeVIDEO FCC('vids')
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#define streamtypeAUDIO FCC('auds')
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#define streamtypeMIDI FCC('mids')
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#define streamtypeTEXT FCC('txts')
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#endif
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FOURCC fccHandler;
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DWORD dwFlags;
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#define AVISF_DISABLED 0x00000001
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#define AVISF_VIDEO_PALCHANGES 0x00010000
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WORD wPriority;
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WORD wLanguage;
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DWORD dwInitialFrames;
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DWORD dwScale;
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DWORD dwRate; // dwRate/dwScale is stream tick rate in ticks/sec
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DWORD dwStart;
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DWORD dwLength;
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DWORD dwSuggestedBufferSize;
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DWORD dwQuality;
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DWORD dwSampleSize;
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struct {
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short int left;
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short int top;
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short int right;
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short int bottom;
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} rcFrame;
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} AVISTREAMHEADER;
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//
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// structure of an AVI stream format chunk
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//
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#ifndef ckidSTREAMFORMAT
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#define ckidSTREAMFORMAT FCC('strf')
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#endif
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//
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// avi stream formats are different for each stream type
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//
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// BITMAPINFOHEADER for video streams
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// WAVEFORMATEX or PCMWAVEFORMAT for audio streams
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// nothing for text streams
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// nothing for midi streams
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#pragma warning(disable:4200)
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//
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// structure of old style AVI index
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//
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#define ckidAVIOLDINDEX FCC('idx1')
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typedef struct _avioldindex {
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FOURCC fcc; // 'idx1'
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DWORD cb; // size of this structure -8
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struct _avioldindex_entry {
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DWORD dwChunkId;
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DWORD dwFlags;
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#ifndef AVIIF_LIST
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#define AVIIF_LIST 0x00000001
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#define AVIIF_KEYFRAME 0x00000010
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#endif
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#define AVIIF_NO_TIME 0x00000100
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#define AVIIF_COMPRESSOR 0x0FFF0000 // unused?
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DWORD dwOffset; // offset of riff chunk header for the data
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DWORD dwSize; // size of the data (excluding riff header size)
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} aIndex[]; // size of this array
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} AVIOLDINDEX;
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//
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// ============ structures for timecode in an AVI file =================
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//
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#ifndef TIMECODE_DEFINED
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#define TIMECODE_DEFINED
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// defined
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// timecode time structure
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//
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typedef union _timecode {
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struct {
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WORD wFrameRate;
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WORD wFrameFract;
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LONG cFrames;
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};
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DWORDLONG qw;
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} TIMECODE;
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#endif // TIMECODE_DEFINED
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#define TIMECODE_RATE_30DROP 0 // this MUST be zero
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// struct for all the SMPTE timecode info
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//
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typedef struct _timecodedata {
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TIMECODE time;
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DWORD dwSMPTEflags;
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DWORD dwUser;
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} TIMECODEDATA;
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// dwSMPTEflags masks/values
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//
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#define TIMECODE_SMPTE_BINARY_GROUP 0x07
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#define TIMECODE_SMPTE_COLOR_FRAME 0x08
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//
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// ============ structures for new style AVI indexes =================
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//
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// index type codes
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//
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#define AVI_INDEX_OF_INDEXES 0x00
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#define AVI_INDEX_OF_CHUNKS 0x01
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#define AVI_INDEX_OF_TIMED_CHUNKS 0x02
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#define AVI_INDEX_OF_SUB_2FIELD 0x03
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#define AVI_INDEX_IS_DATA 0x80
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// index subtype codes
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//
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#define AVI_INDEX_SUB_DEFAULT 0x00
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// INDEX_OF_CHUNKS subtype codes
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//
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#define AVI_INDEX_SUB_2FIELD 0x01
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// meta structure of all avi indexes
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//
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typedef struct _avimetaindex {
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FOURCC fcc;
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UINT cb;
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WORD wLongsPerEntry;
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BYTE bIndexSubType;
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BYTE bIndexType;
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DWORD nEntriesInUse;
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DWORD dwChunkId;
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DWORD dwReserved[3];
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DWORD adwIndex[];
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} AVIMETAINDEX;
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#define STDINDEXSIZE 0x4000
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#define NUMINDEX(wLongsPerEntry) ((STDINDEXSIZE-32)/4/(wLongsPerEntry))
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#define NUMINDEXFILL(wLongsPerEntry) ((STDINDEXSIZE/4) - NUMINDEX(wLongsPerEntry))
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// structure of a super index (INDEX_OF_INDEXES)
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//
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#define ckidAVISUPERINDEX FCC('indx')
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typedef struct _avisuperindex {
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FOURCC fcc; // 'indx'
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UINT cb; // size of this structure
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WORD wLongsPerEntry; // ==4
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BYTE bIndexSubType; // ==0 (frame index) or AVI_INDEX_SUB_2FIELD
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BYTE bIndexType; // ==AVI_INDEX_OF_INDEXES
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DWORD nEntriesInUse; // offset of next unused entry in aIndex
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DWORD dwChunkId; // chunk ID of chunks being indexed, (i.e. RGB8)
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DWORD dwReserved[3]; // must be 0
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struct _avisuperindex_entry {
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DWORDLONG qwOffset; // 64 bit offset to sub index chunk
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DWORD dwSize; // 32 bit size of sub index chunk
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DWORD dwDuration; // time span of subindex chunk (in stream ticks)
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} aIndex[NUMINDEX(4)];
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} AVISUPERINDEX;
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#define Valid_SUPERINDEX(pi) (*(DWORD *)(&((pi)->wLongsPerEntry)) == (4 | (AVI_INDEX_OF_INDEXES << 24)))
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// struct of a standard index (AVI_INDEX_OF_CHUNKS)
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//
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typedef struct _avistdindex_entry {
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DWORD dwOffset; // 32 bit offset to data (points to data, not riff header)
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DWORD dwSize; // 31 bit size of data (does not include size of riff header), bit 31 is deltaframe bit
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} AVISTDINDEX_ENTRY;
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#define AVISTDINDEX_DELTAFRAME ( 0x80000000) // Delta frames have the high bit set
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#define AVISTDINDEX_SIZEMASK (~0x80000000)
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typedef struct _avistdindex {
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FOURCC fcc; // 'indx' or '##ix'
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UINT cb; // size of this structure
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WORD wLongsPerEntry; // ==2
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BYTE bIndexSubType; // ==0
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BYTE bIndexType; // ==AVI_INDEX_OF_CHUNKS
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DWORD nEntriesInUse; // offset of next unused entry in aIndex
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DWORD dwChunkId; // chunk ID of chunks being indexed, (i.e. RGB8)
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DWORDLONG qwBaseOffset; // base offset that all index intries are relative to
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DWORD dwReserved_3; // must be 0
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AVISTDINDEX_ENTRY aIndex[NUMINDEX(2)];
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} AVISTDINDEX;
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// struct of a time variant standard index (AVI_INDEX_OF_TIMED_CHUNKS)
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//
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typedef struct _avitimedindex_entry {
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DWORD dwOffset; // 32 bit offset to data (points to data, not riff header)
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DWORD dwSize; // 31 bit size of data (does not include size of riff header) (high bit is deltaframe bit)
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DWORD dwDuration; // how much time the chunk should be played (in stream ticks)
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} AVITIMEDINDEX_ENTRY;
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typedef struct _avitimedindex {
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FOURCC fcc; // 'indx' or '##ix'
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UINT cb; // size of this structure
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WORD wLongsPerEntry; // ==3
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BYTE bIndexSubType; // ==0
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BYTE bIndexType; // ==AVI_INDEX_OF_TIMED_CHUNKS
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DWORD nEntriesInUse; // offset of next unused entry in aIndex
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DWORD dwChunkId; // chunk ID of chunks being indexed, (i.e. RGB8)
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DWORDLONG qwBaseOffset; // base offset that all index intries are relative to
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DWORD dwReserved_3; // must be 0
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AVITIMEDINDEX_ENTRY aIndex[NUMINDEX(3)];
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DWORD adwTrailingFill[NUMINDEXFILL(3)]; // to align struct to correct size
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} AVITIMEDINDEX;
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// structure of a timecode stream
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//
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typedef struct _avitimecodeindex {
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FOURCC fcc; // 'indx' or '##ix'
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UINT cb; // size of this structure
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WORD wLongsPerEntry; // ==4
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BYTE bIndexSubType; // ==0
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BYTE bIndexType; // ==AVI_INDEX_IS_DATA
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DWORD nEntriesInUse; // offset of next unused entry in aIndex
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DWORD dwChunkId; // 'time'
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DWORD dwReserved[3]; // must be 0
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TIMECODEDATA aIndex[NUMINDEX(sizeof(TIMECODEDATA)/sizeof(LONG))];
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} AVITIMECODEINDEX;
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// structure of a timecode discontinuity list (when wLongsPerEntry == 7)
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//
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typedef struct _avitcdlindex_entry {
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DWORD dwTick; // stream tick time that maps to this timecode value
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TIMECODE time;
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DWORD dwSMPTEflags;
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DWORD dwUser;
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TCHAR szReelId[12];
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} AVITCDLINDEX_ENTRY;
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typedef struct _avitcdlindex {
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FOURCC fcc; // 'indx' or '##ix'
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UINT cb; // size of this structure
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WORD wLongsPerEntry; // ==7 (must be 4 or more all 'tcdl' indexes
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BYTE bIndexSubType; // ==0
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BYTE bIndexType; // ==AVI_INDEX_IS_DATA
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DWORD nEntriesInUse; // offset of next unused entry in aIndex
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DWORD dwChunkId; // 'tcdl'
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DWORD dwReserved[3]; // must be 0
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AVITCDLINDEX_ENTRY aIndex[NUMINDEX(7)];
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DWORD adwTrailingFill[NUMINDEXFILL(7)]; // to align struct to correct size
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} AVITCDLINDEX;
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typedef struct _avifieldindex_chunk {
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FOURCC fcc; // 'ix##'
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DWORD cb; // size of this structure
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WORD wLongsPerEntry; // must be 3 (size of each entry in
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// aIndex array)
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BYTE bIndexSubType; // AVI_INDEX_2FIELD
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BYTE bIndexType; // AVI_INDEX_OF_CHUNKS
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DWORD nEntriesInUse; //
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DWORD dwChunkId; // '##dc' or '##db'
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DWORDLONG qwBaseOffset; // offsets in aIndex array are relative to this
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DWORD dwReserved3; // must be 0
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struct _avifieldindex_entry {
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DWORD dwOffset;
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DWORD dwSize; // size of all fields
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// (bit 31 set for NON-keyframes)
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DWORD dwOffsetField2; // offset to second field
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} aIndex[ ];
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} AVIFIELDINDEX, * PAVIFIELDINDEX;
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#include <poppack.h>
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#endif
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