www.pudn.com > shrinkVideo.rar > mAVIDecs.bas
Attribute VB_Name = "mAVIDecs"
Option Explicit
'/**************************************************************************
' *
' * mAVIDecs - Declarations for using Win32 AVIFile functions in VB
' * Created 9/4/99 By Ray Mercer
' *
' * Version 1.0 uploaded to www.shrinkwrapvb.com on
' * 2/14/2000 by Ray Mercer. Please refer people to the
' * latest version on the web rather than redistributing
' * this file itself.
' * Latest version at http://www.shrinkwrapvb.com
' *
' * THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
' * KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
' * IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
' * PURPOSE.
' *
' * Copyright (C) 1999 - 2000 by Ray Mercer. All Rights Reserved.
' * Please see the licensing and distribution page at Shrinkwrap Visual Basic
' * for more information about copyright restrictions.
' *
' **************************************************************************/
' /**************************************************************************
' *
' * AVIFile* Declares (converted from C function prototypes)
' *
' ***************************************************************************/
Public Declare Function mmioStringToFOURCC Lib "winmm.dll" Alias "mmioStringToFOURCCA" (ByVal sz As String, ByVal uFlags As Long) As Long 'returns fourcc
'note* functions that return MMRESULT return 0 on success
'note* mmioOpen()'s second parameter is declared as Any instead of as MMIOINFO because we sometimes pass a ByVal NULL (0&) which causes VB to choke
' mmioDescend()'s third parameter is As Any instead of As MMCKINFO for the same reason
'Private Declare Function mmioOpen Lib "winmm.dll" Alias "mmioOpenA" (ByVal szFileName As String, ByRef lpmmioinfo As Any, ByVal dwOpenFlags As Long) As Long 'returns hmmio
'Private Declare Function mmioDescend Lib "winmm.dll" (ByVal hmmio As Long, ByRef lpck As MMCKINFO, ByRef lpckParent As Any, ByVal wFlags As Long) As Long 'MMRESULT );
'Private Declare Function mmioRead Lib "winmm.dll" (ByVal hmmio As Long, ByVal pBuf As Long, ByVal lenBuf As Long) As Long 'returns num bytes read
'Private Declare Function mmioClose Lib "winmm.dll" (ByVal hmmio As Long, ByVal wFlags As Long) As Long ' MMRESULT
Public Declare Function VideoForWindowsVersion Lib "msvfw32.dll" () As Long
'Public Declare Function AVIFileInfo Lib "avifil32.dll" (ByVal pfile As Long, pfi As AVI_FILE_INFO, ByVal lSize As Long) As Long 'HRESULT
Public Declare Sub AVIFileInit Lib "avifil32.dll" ()
'note! - the ppfile argument is ByRef because it is a pointer to a pointer :-)
Public Declare Function AVIFileOpen Lib "avifil32.dll" (ByRef ppfile As Long, ByVal szFile As String, ByVal uMode As Long, ByVal pclsidHandler As Long) As Long 'HRESULT
Public Declare Function AVIFileInfo Lib "avifil32.dll" (ByVal pfile As Long, pfi As AVI_FILE_INFO, ByVal lSize As Long) As Long 'HRESULT
Public Declare Function AVIFileCreateStream Lib "avifil32.dll" Alias "AVIFileCreateStreamA" _
(ByVal pfile As Long, ByRef ppavi As Long, ByRef psi As AVI_STREAM_INFO) As Long
'Careful! this function is awkward to use in VB
' the only way to make it work is to pass a pointer to a AVI_COMPRESS_OPTIONS UDT (last parameter) ByRef
' This means in your code you should Dim a long variable and get a pointer to your AVI_COMPRESS_OPTIONS UDT
' using VarPtr() - e.g. mylong = VarPtr(myUDT) - and then pass the mylong BYREF
' this will give you a pointer to a pointer to an (array of) UDT (yech!) -Ray
Public Declare Function AVISaveOptions Lib "avifil32.dll" (ByVal hWnd As Long, _
ByVal uiFlags As Long, _
ByVal nStreams As Long, _
ByRef ppavi As Long, _
ByRef ppOptions As Long) As Long 'TRUE if user pressed OK, False if cancel, or error if error
'This is actually the AVISaveV function aliased to be called as AVISave from VB because
'AVISave seems to be compiled using CDECL calling convention ;-(
'ALSO - see note above AVISaveOptions declare - this function also requires a pointer to a pointer to (an array of) UDT
Public Declare Function AVISave Lib "avifil32.dll" Alias "AVISaveVA" (ByVal szFile As String, _
ByVal pclsidHandler As Long, _
ByVal lpfnCallback As Long, _
ByVal nStreams As Long, _
ByRef ppaviStream As Long, _
ByRef ppCompOptions As Long) As Long
'See note above AVISaveOptions declare - this function also requires a pointer to a pointer to (an array of) UDT
Public Declare Function AVISaveOptionsFree Lib "avifil32.dll" (ByVal nStreams As Long, _
ByRef ppOptions As Long) As Long
Public Declare Function AVIMakeCompressedStream Lib "avifil32.dll" (ByRef ppsCompressed As Long, _
ByVal psSource As Long, _
ByRef lpOptions As AVI_COMPRESS_OPTIONS, _
ByVal pclsidHandler As Long) As Long '
Public Declare Function AVIStreamSetFormat Lib "avifil32.dll" (ByVal pavi As Long, _
ByVal lPos As Long, _
ByRef lpFormat As Any, _
ByVal cbFormat As Long) As Long
Public Declare Function AVIStreamWrite Lib "avifil32.dll" (ByVal pavi As Long, _
ByVal lStart As Long, _
ByVal lSamples As Long, _
ByVal lpBuffer As Long, _
ByVal cbBuffer As Long, _
ByVal dwFlags As Long, _
ByRef plSampWritten As Long, _
ByRef plBytesWritten As Long) As Long
Public Declare Function AVIStreamReadFormat Lib "avifil32.dll" (ByVal pAVIStream As Long, _
ByVal lPos As Long, _
ByVal lpFormatBuf As Long, _
ByRef sizeBuf As Long) As Long
Public Declare Function AVIStreamRead Lib "avifil32.dll" (ByVal pAVIStream As Long, _
ByVal lStart As Long, _
ByVal lSamples As Long, _
ByVal lpBuffer As Long, _
ByVal cbBuffer As Long, _
ByRef pBytesWritten As Long, _
ByRef pSamplesWritten As Long) As Long
Public Declare Function AVIStreamGetFrameOpen Lib "avifil32.dll" (ByVal pAVIStream As Long, _
ByRef bih As Any) As Long 'returns pointer to GETFRAME object on success (or NULL on error)
Public Declare Function AVIStreamGetFrame Lib "avifil32.dll" (ByVal pGetFrameObj As Long, _
ByVal lPos As Long) As Long 'returns pointer to packed DIB on success (or NULL on error)
Public Declare Function AVIStreamGetFrameClose Lib "avifil32.dll" (ByVal pGetFrameObj As Long) As Long ' returns zero on success (error number) after calling this function the GETFRAME object pointer is invalid
Public Declare Function AVIFileGetStream Lib "avifil32.dll" (ByVal pfile As Long, ByRef ppaviStream As Long, ByVal fccType As Long, ByVal lParam As Long) As Long
Public Declare Function AVIMakeFileFromStreams Lib "avifil32.dll" (ByRef ppfile As Long, ByVal nStreams As Long, ByVal pAVIStreamArray As Long) As Long
Public Declare Function AVIStreamInfo Lib "avifil32.dll" (ByVal pAVIStream As Long, ByRef psi As AVI_STREAM_INFO, ByVal lSize As Long) As Long
Public Declare Function AVIStreamStart Lib "avifil32.dll" (ByVal pavi As Long) As Long
Public Declare Function AVIStreamLength Lib "avifil32.dll" (ByVal pavi As Long) As Long
Public Declare Function AVIStreamRelease Lib "avifil32.dll" (ByVal pavi As Long) As Long 'ULONG
Public Declare Function AVIStreamClose Lib "avifil32.dll" Alias "AVIStreamRelease" (ByVal pavi As Long) As Long 'ULONG
Public Declare Function AVIFileRelease Lib "avifil32.dll" (ByVal pfile As Long) As Long
Public Declare Function AVIFileClose Lib "avifil32.dll" Alias "AVIFileRelease" (ByVal pfile As Long) As Long
Public Declare Sub AVIFileExit Lib "avifil32.dll" ()
'/****************************************************************************
' *
' * Clipboard routines
' *
' ***************************************************************************/
Public Declare Function AVIMakeStreamFromClipboard Lib "avifil32.dll" (ByVal cfFormat As Long, ByVal hGlobal As Long, ByRef ppstream As Long) As Long
Public Declare Function AVIPutFileOnClipboard Lib "avifil32.dll" (ByVal pAVIFile As Long) As Long
Public Declare Function AVIGetFromClipboard Lib "avifil32.dll" (ByRef ppAVIFile As Long) As Long
Public Declare Function AVIClearClipboard Lib "avifil32.dll" () As Long
'Public Declare Function GetObjectAPI Lib "gdi32.dll" Alias "GetObjectA" (ByVal hGDIObj As Long, ByVal sizBuf As Long, ByRef lpBuf As Any) As Long
'Public Declare Function CreateCompatibleDC Lib "gdi32.dll" (ByVal hdc As Long) As Long
'Public Declare Function DeleteDC Lib "gdi32.dll" (ByVal hdc As Long) As Long 'BOOL
'Public Declare Function GetDIBits Lib "gdi32.dll" (ByVal hdc As Long, ByVal hBmp As Long, _
' ByVal startScan As Long, ByVal numScanLines As Long, _
' ByVal lpvBits As Long, ByRef BI As BITMAPINFOHEADER, ByVal uUsage As Long) As Long
'Public Declare Function LoadBitmapByNumber Lib "user32.dll" Alias "LoadBitmapA" (ByVal hInstance As Long, ByVal lpResID As Long) As Long 'hBitmap
'Public Declare Function DeleteObject Lib "gdi32.dll" (ByVal hObject As Long) As Long 'BOOL
' /**************************************************************************
' *
' * AVIFile* Types (UDTS converted from C structs)
' *
' ***************************************************************************/
Private Const BMP_MAGIC_COOKIE As Integer = 19778 'this is equivalent to ascii string "BM"
Public Type BITMAPFILEHEADER '14 bytes
bfType As Integer '"magic cookie" - must be "BM" (19778)
bfSize As Long
bfReserved1 As Integer
bfReserved2 As Integer
bfOffBits As Long
End Type
'//BITMAP DEFINES (from mmsystem.h)
Public Type BITMAPINFOHEADER '40 bytes
biSize As Long
biWidth As Long
biHeight As Long
biPlanes As Integer
biBitCount As Integer
biCompression As Long
biSizeImage As Long
biXPelsPerMeter As Long
biYPelsPerMeter As Long
biClrUsed As Long
biClrImportant As Long
End Type
Public Type BITMAPINFOHEADER_MJPEG '68 bytes
biSize As Long
biWidth As Long
biHeight As Long
biPlanes As Integer
biBitCount As Integer
biCompression As Long
biSizeImage As Long
biXPelsPerMeter As Long
biYPelsPerMeter As Long
biClrUsed As Long
biClrImportant As Long
'/* extended BITMAPINFOHEADER fields */
biExtDataOffset As Long
'/* compression-specific fields */
'/* these fields are defined for 'JPEG' and 'MJPG' */
JPEGSize As Long
JPEGProcess As Long
'/* Process specific fields */
JPEGColorSpaceID As Long
JPEGBitsPerSample As Long
JPEGHSubSampling As Long
JPEGVSubSampling As Long
End Type
Public Type AVI_RECT
left As Long
top As Long
right As Long
bottom As Long
End Type
Public Type AVI_STREAM_INFO
fccType As Long
fccHandler As Long
dwFlags As Long
dwCaps As Long
wPriority As Integer
wLanguage As Integer
dwScale As Long
dwRate As Long
dwStart As Long
dwLength As Long
dwInitialFrames As Long
dwSuggestedBufferSize As Long
dwQuality As Long
dwSampleSize As Long
rcFrame As AVI_RECT
dwEditCount As Long
dwFormatChangeCount As Long
szName As String * 64
End Type
'for use with AVIFIleInfo
Public Type AVI_FILE_INFO '108 bytes?
dwMaxBytesPerSecond As Long
dwFlags As Long
dwCaps As Long
dwStreams As Long
dwSuggestedBufferSize As Long
dwWidth As Long
dwHeight As Long
dwScale As Long
dwRate As Long
dwLength As Long
dwEditCount As Long
szFileType As String * 64
End Type
Public Type AVI_COMPRESS_OPTIONS
fccType As Long '/* stream type, for consistency */
fccHandler As Long '/* compressor */
dwKeyFrameEvery As Long '/* keyframe rate */
dwQuality As Long '/* compress quality 0-10,000 */
dwBytesPerSecond As Long '/* bytes per second */
dwFlags As Long '/* flags... see below */
lpFormat As Long '/* save format */
cbFormat As Long
lpParms As Long '/* compressor options */
cbParms As Long
dwInterleaveEvery As Long '/* for non-video streams only */
End Type
' /**************************************************************************
' *
' * AVIFile* Constants (converted from C defines)
' *
' ***************************************************************************/
Global Const AVIERR_OK As Long = 0&
'AVIERR MACRO BREAKDOWN (You gotta love those Windows error codes ;-()
'FROM WINERROR.H
'#define SEVERITY_ERROR 1
'#define FACILITY_ITF 4
'MAKE_SCODE(SEVERITY_ERROR, FACILITY_ITF, 0x4000 + error)
'#define MAKE_AVIERR(error) MAKE_SCODE(sev,fac,code) \ ((SCODE) (((unsigned long)(sev)<<31) | ((unsigned long)(fac)<<16) | ((unsigned long)(code))) )
'Since we can't use the error macro from VB, we need these defined a little more concretely:
'(IOW - Man! those C -Programmers are lazy! ;-)
Private Const SEVERITY_ERROR As Long = &H80000000
Private Const FACILITY_ITF As Long = &H40000
Private Const AVIERR_BASE As Long = &H4000
'#define AVIERR_UNSUPPORTED MAKE_AVIERR(101)
'#define AVIERR_BADFORMAT MAKE_AVIERR(102)
'#define AVIERR_MEMORY MAKE_AVIERR(103)
'#define AVIERR_INTERNAL MAKE_AVIERR(104)
Global Const AVIERR_BADFLAGS As Long = SEVERITY_ERROR Or FACILITY_ITF Or (AVIERR_BASE + 105) '-2147205015
Global Const AVIERR_BADPARAM As Long = SEVERITY_ERROR Or FACILITY_ITF Or (AVIERR_BASE + 106) '-2147205014
Global Const AVIERR_BADSIZE As Long = SEVERITY_ERROR Or FACILITY_ITF Or (AVIERR_BASE + 107) '-2147205013
'#define AVIERR_BADHANDLE MAKE_AVIERR(108)
'#define AVIERR_FILEREAD MAKE_AVIERR(109)
'#define AVIERR_FILEWRITE MAKE_AVIERR(110)
'#define AVIERR_FILEOPEN MAKE_AVIERR(111)
'#define AVIERR_COMPRESSOR MAKE_AVIERR(112)
'#define AVIERR_NOCOMPRESSOR MAKE_AVIERR(113)
'#define AVIERR_READONLY MAKE_AVIERR(114)
'#define AVIERR_NODATA MAKE_AVIERR(115)
'#define AVIERR_BUFFERTOOSMALL MAKE_AVIERR(116)
'#define AVIERR_CANTCOMPRESS MAKE_AVIERR(117)
Global Const AVIERR_USERABORT As Long = SEVERITY_ERROR Or FACILITY_ITF Or (AVIERR_BASE + 198) '-2147204922
'#define AVIERR_ERROR MAKE_AVIERR(199)
'// Flags for dwFlags
Global Const AVIFILEINFO_HASINDEX As Long = &H10
Global Const AVIFILEINFO_MUSTUSEINDEX As Long = &H20
Global Const AVIFILEINFO_ISINTERLEAVED As Long = &H100
Global Const AVIFILEINFO_WASCAPTUREFILE As Long = &H10000
Global Const AVIFILEINFO_COPYRIGHTED As Long = &H20000
'// Flags for dwCaps
Global Const AVIFILECAPS_CANREAD As Long = &H1
Global Const AVIFILECAPS_CANWRITE As Long = &H2
Global Const AVIFILECAPS_ALLKEYFRAMES As Long = &H10
Global Const AVIFILECAPS_NOCOMPRESSION As Long = &H20
'//
'// Defines for the dwFlags field of the AVICOMPRESSOPTIONS struct
'// Each of these flags determines if the appropriate field in the structure
'// (dwInterleaveEvery, dwBytesPerSecond, and dwKeyFrameEvery) is payed
'// attention to. See the autodoc in avisave.c for details.
'//
Global Const AVICOMPRESSF_INTERLEAVE As Long = &H1 '// interleave
Global Const AVICOMPRESSF_DATARATE As Long = &H2 '// use a data rate
Global Const AVICOMPRESSF_KEYFRAMES As Long = &H4 '// use keyframes
Global Const AVICOMPRESSF_VALID As Long = &H8 '// has valid data?
Global Const OF_READ As Long = &H0
Global Const OF_WRITE As Long = &H1
'#define OF_READWRITE 0x00000002
'#define OF_SHARE_COMPAT 0x00000000
'#define OF_SHARE_EXCLUSIVE 0x00000010
Global Const OF_SHARE_DENY_WRITE As Long = &H20
'#define OF_SHARE_DENY_READ 0x00000030
'#define OF_SHARE_DENY_NONE 0x00000040
'#define OF_PARSE 0x00000100
'#define OF_DELETE 0x00000200
'#define OF_VERIFY 0x00000400
'#define OF_CANCEL 0x00000800
Global Const OF_CREATE As Long = &H1000
'#define OF_PROMPT 0x00002000
'#define OF_EXIST 0x00004000
'#define OF_REOPEN 0x00008000
Global Const AVIIF_KEYFRAME As Long = &H10
'/* DIB color table identifiers */
Global Const DIB_RGB_COLORS As Long = 0 '/* color table in RGBs */
Global Const DIB_PAL_COLORS As Long = 1 '/* color table in palette indices */
'/* constants for the biCompression field */
Global Const BI_RGB As Long = 0
Global Const BI_RLE8 As Long = 1
Global Const BI_RLE4 As Long = 2
Global Const BI_BITFIELDS As Long = 3
'Stream types for use in VB (translated from C macros)
Global Const streamtypeVIDEO As Long = 1935960438 'equivalent to: mmioStringToFOURCC("vids", 0&)
Global Const streamtypeAUDIO As Long = 1935963489 'equivalent to: mmioStringToFOURCC("auds", 0&)
Global Const streamtypeMIDI As Long = 1935960429 'equivalent to: mmioStringToFOURCC("mids", 0&)
Global Const streamtypeTEXT As Long = 1937012852 'equivalent to: mmioStringToFOURCC("txts", 0&)
'// For GetFrame::SetFormat - use the best format for the display
Global Const AVIGETFRAMEF_BESTDISPLAYFMT As Long = 1
'// defines for uiFlags (AVISaveOptions)
Global Const ICMF_CHOOSE_KEYFRAME As Long = &H1 '// show KeyFrame Every box
Global Const ICMF_CHOOSE_DATARATE As Long = &H2 '// show DataRate box
Global Const ICMF_CHOOSE_PREVIEW As Long = &H4 '// allow expanded preview dialog
Global Const ICMF_CHOOSE_ALLCOMPRESSORS As Long = &H8 '// don't only show those that
'// can handle the input format
'// or input data
' /**************************************************************************
' *
' * 'STANDARD WIN32 API DECLARES, UDTs and Constants
' *
' ***************************************************************************/
Private Declare Function SetRect Lib "user32.dll" _
(ByRef lprc As AVI_RECT, ByVal xLeft As Long, ByVal yTop As Long, ByVal xRight As Long, ByVal yBottom As Long) As Long 'BOOL
Private Declare Function GetProcessHeap Lib "kernel32.dll" () As Long 'handle
Private Declare Function HeapAlloc Lib "kernel32.dll" (ByVal hHeap As Long, ByVal dwFlags As Long, ByVal dwBytes As Long) As Long 'Pointer to mem
Private Declare Function HeapFree Lib "kernel32.dll" (ByVal hHeap As Long, ByVal dwFlags As Long, ByVal lpMem As Long) As Long 'BOOL
Private Declare Sub CopyMemory Lib "kernel32.dll" Alias "RtlMoveMemory" (ByRef dest As Any, ByRef src As Any, ByVal dwLen As Long)
Private Const HEAP_ZERO_MEMORY As Long = &H8
Global gfAbort As Boolean 'allows user to abort an AVI Save operation (see Callback function below)
Public Function AVISaveCallback(ByVal nPercent As Long) As Long 'should return C BOOL
'AVISave callback function prototype:
'typedef BOOL (FAR PASCAL * AVISAVECALLBACK)(int);
'
'
'//Display user feedback here using nPercent
'
'
'DoEvents 'allows user to cancel
'If gfAbort = True Then
' AVISaveCallback = AVIERR_USERABORT 'abort file write
'Else
' AVISaveCallback = AVIERR_OK 'continue saving file
'End If
End Function
' /**************************************************************************
' *
' * 'UTILITY FUNCTIONS FOR WORKING WITH AVI FILES
' *
' ***************************************************************************/
Public Sub DebugPrintAVIStreamInfo(asi As AVI_STREAM_INFO)
Debug.Print ""
Debug.Print "**** AVI_STREAM_INFO (START) ****"
With asi
Debug.Print "fccType = " & .fccType
Debug.Print "fccHandler = " & .fccHandler
Debug.Print "dwFlags = " & .dwFlags
Debug.Print "dwCaps = " & .dwCaps
Debug.Print "wPriority = " & .wPriority
Debug.Print "wLanguage = " & .wLanguage
Debug.Print "dwScale = " & .dwScale
Debug.Print "dwRate = " & .dwRate
Debug.Print "dwStart = " & .dwStart
Debug.Print "dwLength = " & .dwLength
Debug.Print "dwInitialFrames = " & .dwInitialFrames
Debug.Print "dwSuggestedBufferSize = " & .dwSuggestedBufferSize
Debug.Print "dwQuality = " & .dwQuality
Debug.Print "dwSampleSize = " & .dwSampleSize
Debug.Print "rcFrame.left = " & .rcFrame.left
Debug.Print "rcFrame.top = " & .rcFrame.top
Debug.Print "rcFrame.right = " & .rcFrame.right
Debug.Print "rcFrame.bottom = " & .rcFrame.bottom
Debug.Print "dwEditCount = " & .dwEditCount
Debug.Print "dwFormatChangeCount = " & .dwFormatChangeCount
Debug.Print "szName = " & .szName
End With
Debug.Print "**** AVI_STREAM_INFO (END) ****"
Debug.Print ""
End Sub
Public Sub DebugPrintAVIFileInfo(afi As AVI_FILE_INFO)
Debug.Print "**** AVI_FILE_INFO (START) ****"
With afi
Debug.Print "dwMaxBytesPerSecond = " & .dwMaxBytesPerSecond
Debug.Print "dwFlags = " & .dwFlags
Debug.Print "dwCaps = " & .dwCaps
Debug.Print "dwStreams = " & .dwStreams
Debug.Print "dwSuggestedBufferSize = " & .dwSuggestedBufferSize
Debug.Print "dwWidth = " & .dwWidth
Debug.Print "dwHeight = " & .dwHeight
Debug.Print "dwScale = " & .dwScale
Debug.Print "dwRate = " & .dwRate
Debug.Print "dwLength = " & .dwLength
Debug.Print "dwEditCount = " & .dwEditCount
Debug.Print "szFileType = " & .szFileType
End With
Debug.Print "**** AVI_FILE_INFO (END) ****"
Debug.Print ""
End Sub