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windows-nt/Source/XPSP1/NT/multimedia/media/avi/inc.16/compman.h

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2020-09-26 03:20:57 -05:00
/*
* Header file for comunication with AVI installable compressors/decompressors
*
* Copyright (c) 1990-1994, Microsoft Corp. All rights reserved.
*
* Win16:
*
* Installable compressors should be listed in SYSTEM.INI as
* follows:
*
* [Drivers]
* VIDC.MSSQ = mssqcomp.drv
* VIDC.XXXX = foodrv.drv
*
* Win32: (NT)
*
* Installable compressors should be listed in the registration database
* under the key
* HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32
* VIDC.MSSQ = mssqcomp.dll
* VIDC.XXXX = foodrv.dll
*
*
* That is, an identifying FOURCC should be the key, and the value
* should be the driver filename
*
*/
#ifndef _INC_COMPMAN
#define _INC_COMPMAN
#ifndef RC_INVOKED
#ifndef VFWAPI
#ifdef WIN32
#define VFWAPI WINAPI
#ifdef WINAPIV
#define VFWAPIV WINAPIV
#else
#define VFWAPIV FAR CDECL
#endif
#else
#define VFWAPI FAR PASCAL
#define VFWAPIV FAR CDECL
#endif
#endif
#endif
#ifdef __cplusplus
extern "C" { /* Assume C declarations for C++ */
#endif /* __cplusplus */
/************************************************************************
messages and structures.
************************************************************************/
#if !defined HTASK
#define HTASK HANDLE
#endif
#include "compddk.h" // include this file for the messages.
// begin_vfw32
/************************************************************************
ICM function declarations
************************************************************************/
BOOL VFWAPI ICInfo(DWORD fccType, DWORD fccHandler, ICINFO FAR * lpicinfo);
BOOL VFWAPI ICInstall(DWORD fccType, DWORD fccHandler, LPARAM lParam, LPSTR szDesc, UINT wFlags);
BOOL VFWAPI ICRemove(DWORD fccType, DWORD fccHandler, UINT wFlags);
LRESULT VFWAPI ICGetInfo(HIC hic, ICINFO FAR *picinfo, DWORD cb);
HIC VFWAPI ICOpen(DWORD fccType, DWORD fccHandler, UINT wMode);
HIC VFWAPI ICOpenFunction(DWORD fccType, DWORD fccHandler, UINT wMode, FARPROC lpfnHandler);
LRESULT VFWAPI ICClose(HIC hic);
LRESULT VFWAPI ICSendMessage(HIC hic, UINT msg, DWORD dw1, DWORD dw2);
#ifndef WIN32
//this function is unsupported on Win32 as it is non-portable.
LRESULT VFWAPIV ICMessage(HIC hic, UINT msg, UINT cb, ...);
#endif
/* Values for wFlags of ICInstall() */
#define ICINSTALL_FUNCTION 0x0001 // lParam is a DriverProc (function ptr)
#define ICINSTALL_DRIVER 0x0002 // lParam is a driver name (string)
#define ICINSTALL_HDRV 0x0004 // lParam is a HDRVR (driver handle)
/************************************************************************
query macros
************************************************************************/
#define ICMF_CONFIGURE_QUERY 0x00000001
#define ICMF_ABOUT_QUERY 0x00000001
#define ICQueryAbout(hic) \
(ICSendMessage(hic, ICM_ABOUT, (DWORD) -1, ICMF_ABOUT_QUERY) == ICERR_OK)
#define ICAbout(hic, hwnd) \
ICSendMessage(hic, ICM_ABOUT, (DWORD)(UINT)(hwnd), 0)
#define ICQueryConfigure(hic) \
(ICSendMessage(hic, ICM_CONFIGURE, (DWORD) -1, ICMF_CONFIGURE_QUERY) == ICERR_OK)
#define ICConfigure(hic, hwnd) \
ICSendMessage(hic, ICM_CONFIGURE, (DWORD)(UINT)(hwnd), 0)
/************************************************************************
get/set state macros
************************************************************************/
#define ICGetState(hic, pv, cb) \
ICSendMessage(hic, ICM_GETSTATE, (DWORD)(LPVOID)(pv), (DWORD)(cb))
#define ICSetState(hic, pv, cb) \
ICSendMessage(hic, ICM_SETSTATE, (DWORD)(LPVOID)(pv), (DWORD)(cb))
#define ICGetStateSize(hic) \
ICGetState(hic, NULL, 0)
/************************************************************************
get value macros
************************************************************************/
static DWORD dwICValue;
#define ICGetDefaultQuality(hic) \
(ICSendMessage(hic, ICM_GETDEFAULTQUALITY, (DWORD)(LPVOID)&dwICValue, sizeof(DWORD)), dwICValue)
#define ICGetDefaultKeyFrameRate(hic) \
(ICSendMessage(hic, ICM_GETDEFAULTKEYFRAMERATE, (DWORD)(LPVOID)&dwICValue, sizeof(DWORD)), dwICValue)
/************************************************************************
draw window macro
************************************************************************/
#define ICDrawWindow(hic, prc) \
ICSendMessage(hic, ICM_DRAW_WINDOW, (DWORD)(LPVOID)(prc), sizeof(RECT))
/************************************************************************
compression functions
************************************************************************/
/*
* ICCompress()
*
* compress a single frame
*
*/
DWORD VFWAPIV ICCompress(
HIC hic,
DWORD dwFlags, // flags
LPBITMAPINFOHEADER lpbiOutput, // output format
LPVOID lpData, // output data
LPBITMAPINFOHEADER lpbiInput, // format of frame to compress
LPVOID lpBits, // frame data to compress
LPDWORD lpckid, // ckid for data in AVI file
LPDWORD lpdwFlags, // flags in the AVI index.
LONG lFrameNum, // frame number of seq.
DWORD dwFrameSize, // reqested size in bytes. (if non zero)
DWORD dwQuality, // quality within one frame
LPBITMAPINFOHEADER lpbiPrev, // format of previous frame
LPVOID lpPrev); // previous frame
/*
* ICCompressBegin()
*
* start compression from a source format (lpbiInput) to a dest
* format (lpbiOuput) is supported.
*
*/
#define ICCompressBegin(hic, lpbiInput, lpbiOutput) \
ICSendMessage(hic, ICM_COMPRESS_BEGIN, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))
/*
* ICCompressQuery()
*
* determines if compression from a source format (lpbiInput) to a dest
* format (lpbiOuput) is supported.
*
*/
#define ICCompressQuery(hic, lpbiInput, lpbiOutput) \
ICSendMessage(hic, ICM_COMPRESS_QUERY, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))
/*
* ICCompressGetFormat()
*
* get the output format, (format of compressed data)
* if lpbiOutput is NULL return the size in bytes needed for format.
*
*/
#define ICCompressGetFormat(hic, lpbiInput, lpbiOutput) \
ICSendMessage(hic, ICM_COMPRESS_GET_FORMAT, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))
#define ICCompressGetFormatSize(hic, lpbi) \
ICCompressGetFormat(hic, lpbi, NULL)
/*
* ICCompressSize()
*
* return the maximal size of a compressed frame
*
*/
#define ICCompressGetSize(hic, lpbiInput, lpbiOutput) \
ICSendMessage(hic, ICM_COMPRESS_GET_SIZE, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))
#define ICCompressEnd(hic) \
ICSendMessage(hic, ICM_COMPRESS_END, 0, 0)
/************************************************************************
decompression functions
************************************************************************/
/*
* ICDecompress()
*
* decompress a single frame
*
*/
#define ICDECOMPRESS_HURRYUP 0x80000000L // don't draw just buffer (hurry up!)
DWORD VFWAPIV ICDecompress(
HIC hic,
DWORD dwFlags, // flags (from AVI index...)
LPBITMAPINFOHEADER lpbiFormat, // BITMAPINFO of compressed data
// biSizeImage has the chunk size
LPVOID lpData, // data
LPBITMAPINFOHEADER lpbi, // DIB to decompress to
LPVOID lpBits);
/*
* ICDecompressBegin()
*
* start compression from a source format (lpbiInput) to a dest
* format (lpbiOutput) is supported.
*
*/
#define ICDecompressBegin(hic, lpbiInput, lpbiOutput) \
ICSendMessage(hic, ICM_DECOMPRESS_BEGIN, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))
/*
* ICDecompressQuery()
*
* determines if compression from a source format (lpbiInput) to a dest
* format (lpbiOutput) is supported.
*
*/
#define ICDecompressQuery(hic, lpbiInput, lpbiOutput) \
ICSendMessage(hic, ICM_DECOMPRESS_QUERY, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))
/*
* ICDecompressGetFormat()
*
* get the output format, (format of un-compressed data)
* if lpbiOutput is NULL return the size in bytes needed for format.
*
*/
#define ICDecompressGetFormat(hic, lpbiInput, lpbiOutput) \
((LONG) ICSendMessage(hic, ICM_DECOMPRESS_GET_FORMAT, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput)))
#define ICDecompressGetFormatSize(hic, lpbi) \
ICDecompressGetFormat(hic, lpbi, NULL)
/*
* ICDecompressGetPalette()
*
* get the output palette
*
*/
#define ICDecompressGetPalette(hic, lpbiInput, lpbiOutput) \
ICSendMessage(hic, ICM_DECOMPRESS_GET_PALETTE, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))
#define ICDecompressSetPalette(hic, lpbiPalette) \
ICSendMessage(hic, ICM_DECOMPRESS_SET_PALETTE, (DWORD)(LPVOID)(lpbiPalette), 0)
#define ICDecompressEnd(hic) \
ICSendMessage(hic, ICM_DECOMPRESS_END, 0, 0)
/************************************************************************
decompression (ex) functions
************************************************************************/
// end_vfw32
#ifdef WIN32
// begin_vfw32
//
// on Win16 these functions are macros that call ICMessage. ICMessage will
// not work on NT. rather than add new entrypoints we have given
// them as static inline functions
//
/*
* ICDecompressEx()
*
* decompress a single frame
*
*/
static __inline LRESULT VFWAPI
ICDecompressEx(
HIC hic,
DWORD dwFlags,
LPBITMAPINFOHEADER lpbiSrc,
LPVOID lpSrc,
int xSrc,
int ySrc,
int dxSrc,
int dySrc,
LPBITMAPINFOHEADER lpbiDst,
LPVOID lpDst,
int xDst,
int yDst,
int dxDst,
int dyDst)
{
ICDECOMPRESSEX ic;
ic.dwFlags = dwFlags;
ic.lpbiSrc = lpbiSrc;
ic.lpSrc = lpSrc;
ic.xSrc = xSrc;
ic.ySrc = ySrc;
ic.dxSrc = dxSrc;
ic.dySrc = dySrc;
ic.lpbiDst = lpbiDst;
ic.lpDst = lpDst;
ic.xDst = xDst;
ic.yDst = yDst;
ic.dxDst = dxDst;
ic.dyDst = dyDst;
// note that ICM swaps round the length and pointer
// length in lparam2, pointer in lparam1
return ICSendMessage(hic, ICM_DECOMPRESSEX, (DWORD)&ic, sizeof(ic));
}
/*
* ICDecompressExBegin()
*
* start compression from a source format (lpbiInput) to a dest
* format (lpbiOutput) is supported.
*
*/
static __inline LRESULT VFWAPI
ICDecompressExBegin(
HIC hic,
DWORD dwFlags,
LPBITMAPINFOHEADER lpbiSrc,
LPVOID lpSrc,
int xSrc,
int ySrc,
int dxSrc,
int dySrc,
LPBITMAPINFOHEADER lpbiDst,
LPVOID lpDst,
int xDst,
int yDst,
int dxDst,
int dyDst)
{
ICDECOMPRESSEX ic;
ic.dwFlags = dwFlags;
ic.lpbiSrc = lpbiSrc;
ic.lpSrc = lpSrc;
ic.xSrc = xSrc;
ic.ySrc = ySrc;
ic.dxSrc = dxSrc;
ic.dySrc = dySrc;
ic.lpbiDst = lpbiDst;
ic.lpDst = lpDst;
ic.xDst = xDst;
ic.yDst = yDst;
ic.dxDst = dxDst;
ic.dyDst = dyDst;
// note that ICM swaps round the length and pointer
// length in lparam2, pointer in lparam1
return ICSendMessage(hic, ICM_DECOMPRESSEX_BEGIN, (DWORD)&ic, sizeof(ic));
}
/*
* ICDecompressExQuery()
*
*/
static __inline LRESULT VFWAPI
ICDecompressExQuery(
HIC hic,
DWORD dwFlags,
LPBITMAPINFOHEADER lpbiSrc,
LPVOID lpSrc,
int xSrc,
int ySrc,
int dxSrc,
int dySrc,
LPBITMAPINFOHEADER lpbiDst,
LPVOID lpDst,
int xDst,
int yDst,
int dxDst,
int dyDst)
{
ICDECOMPRESSEX ic;
ic.dwFlags = dwFlags;
ic.lpbiSrc = lpbiSrc;
ic.lpSrc = lpSrc;
ic.xSrc = xSrc;
ic.ySrc = ySrc;
ic.dxSrc = dxSrc;
ic.dySrc = dySrc;
ic.lpbiDst = lpbiDst;
ic.lpDst = lpDst;
ic.xDst = xDst;
ic.yDst = yDst;
ic.dxDst = dxDst;
ic.dyDst = dyDst;
// note that ICM swaps round the length and pointer
// length in lparam2, pointer in lparam1
return ICSendMessage(hic, ICM_DECOMPRESSEX_QUERY, (DWORD)&ic, sizeof(ic));
}
// end_vfw32
#else
// these macros need to be functions for WIN32 because ICMessage is
// essentially unsupportable on NT
/*
* ICDecompressEx()
*
* decompress a single frame
*
*/
#define ICDecompressEx(hic, dwFlags, lpbiSrc, lpSrc, xSrc, ySrc, dxSrc, dySrc, lpbiDst, lpDst, xDst, yDst, dxDst, dyDst) \
ICMessage(hic, ICM_DECOMPRESSEX, sizeof(ICDECOMPRESSEX), \
(DWORD)(dwFlags), \
(LPBITMAPINFOHEADER)(lpbiSrc), (LPVOID)(lpSrc), \
(LPBITMAPINFOHEADER)(lpbiDst), (LPVOID)(lpDst), \
(int)(xDst), (int)(yDst), (int)(dxDst), (int)(dyDst), \
(int)(xSrc), (int)(ySrc), (int)(dxSrc), (int)(dySrc))
/*
* ICDecompressBegin()
*
* start compression from a source format (lpbiInput) to a dest
* format (lpbiOutput) is supported.
*
*/
#define ICDecompressExBegin(hic, dwFlags, lpbiSrc, lpSrc, xSrc, ySrc, dxSrc, dySrc, lpbiDst, lpDst, xDst, yDst, dxDst, dyDst) \
ICMessage(hic, ICM_DECOMPRESSEX_BEGIN, sizeof(ICDECOMPRESSEX), \
(DWORD)(dwFlags), \
(LPBITMAPINFOHEADER)(lpbiSrc), (LPVOID)(lpSrc), \
(LPBITMAPINFOHEADER)(lpbiDst), (LPVOID)(lpDst), \
(int)(xDst), (int)(yDst), (int)(dxDst), (int)(dyDst), \
(int)(xSrc), (int)(ySrc), (int)(dxSrc), (int)(dySrc))
/*
* ICDecompressExQuery()
*
*/
#define ICDecompressExQuery(hic, dwFlags, lpbiSrc, lpSrc, xSrc, ySrc, dxSrc, dySrc, lpbiDst, lpDst, xDst, yDst, dxDst, dyDst) \
ICMessage(hic, ICM_DECOMPRESSEX_QUERY, sizeof(ICDECOMPRESSEX), \
(DWORD)(dwFlags), \
(LPBITMAPINFOHEADER)(lpbiSrc), (LPVOID)(lpSrc), \
(LPBITMAPINFOHEADER)(lpbiDst), (LPVOID)(lpDst), \
(int)(xDst), (int)(yDst), (int)(dxDst), (int)(dyDst), \
(int)(xSrc), (int)(ySrc), (int)(dxSrc), (int)(dySrc))
#endif
// begin_vfw32
#define ICDecompressExEnd(hic) \
ICSendMessage(hic, ICM_DECOMPRESSEX_END, 0, 0)
/************************************************************************
drawing functions
************************************************************************/
/*
* ICDrawBegin()
*
* start decompressing data with format (lpbiInput) directly to the screen
*
* return zero if the decompressor supports drawing.
*
*/
#define ICDRAW_QUERY 0x00000001L // test for support
#define ICDRAW_FULLSCREEN 0x00000002L // draw to full screen
#define ICDRAW_HDC 0x00000004L // draw to a HDC/HWND
DWORD VFWAPIV ICDrawBegin(
HIC hic,
DWORD dwFlags, // flags
HPALETTE hpal, // palette to draw with
HWND hwnd, // window to draw to
HDC hdc, // HDC to draw to
int xDst, // destination rectangle
int yDst,
int dxDst,
int dyDst,
LPBITMAPINFOHEADER lpbi, // format of frame to draw
int xSrc, // source rectangle
int ySrc,
int dxSrc,
int dySrc,
DWORD dwRate, // frames/second = (dwRate/dwScale)
DWORD dwScale);
/*
* ICDraw()
*
* decompress data directly to the screen
*
*/
#define ICDRAW_HURRYUP 0x80000000L // don't draw just buffer (hurry up!)
#define ICDRAW_UPDATE 0x40000000L // don't draw just update screen
DWORD VFWAPIV ICDraw(
HIC hic,
DWORD dwFlags, // flags
LPVOID lpFormat, // format of frame to decompress
LPVOID lpData, // frame data to decompress
DWORD cbData, // size of data
LONG lTime); // time to draw this frame
// end_vfw32
#ifdef WIN32
// begin_vfw32
// ICMessage is not supported on Win32, so provide a static inline function
// to do the same job
static __inline LRESULT VFWAPI
ICDrawSuggestFormat(
HIC hic,
LPBITMAPINFOHEADER lpbiIn,
LPBITMAPINFOHEADER lpbiOut,
int dxSrc,
int dySrc,
int dxDst,
int dyDst,
HIC hicDecomp)
{
ICDRAWSUGGEST ic;
ic.lpbiIn = lpbiIn;
ic.lpbiSuggest = lpbiOut;
ic.dxSrc = dxSrc;
ic.dySrc = dySrc;
ic.dxDst = dxDst;
ic.dyDst = dyDst;
ic.hicDecompressor = hicDecomp;
// note that ICM swaps round the length and pointer
// length in lparam2, pointer in lparam1
return ICSendMessage(hic, ICM_DRAW_SUGGESTFORMAT, (DWORD)&ic, sizeof(ic));
}
// end_vfw32
#else
#define ICDrawSuggestFormat(hic,lpbiIn,lpbiOut,dxSrc,dySrc,dxDst,dyDst,hicDecomp) \
ICMessage(hic, ICM_DRAW_SUGGESTFORMAT, sizeof(ICDRAWSUGGEST), \
(LPBITMAPINFOHEADER)(lpbiIn),(LPBITMAPINFOHEADER)(lpbiOut), \
(int)(dxSrc),(int)(dySrc),(int)(dxDst),(int)(dyDst), (HIC)(hicDecomp))
#endif
// begin_vfw32
/*
* ICDrawQuery()
*
* determines if the compressor is willing to render the specified format.
*
*/
#define ICDrawQuery(hic, lpbiInput) \
ICSendMessage(hic, ICM_DRAW_QUERY, (DWORD)(LPVOID)(lpbiInput), 0L)
#define ICDrawChangePalette(hic, lpbiInput) \
ICSendMessage(hic, ICM_DRAW_CHANGEPALETTE, (DWORD)(LPVOID)(lpbiInput), 0L)
#define ICGetBuffersWanted(hic, lpdwBuffers) \
ICSendMessage(hic, ICM_GETBUFFERSWANTED, (DWORD)(LPVOID)(lpdwBuffers), 0)
#define ICDrawEnd(hic) \
ICSendMessage(hic, ICM_DRAW_END, 0, 0)
#define ICDrawStart(hic) \
ICSendMessage(hic, ICM_DRAW_START, 0, 0)
#define ICDrawStartPlay(hic, lFrom, lTo) \
ICSendMessage(hic, ICM_DRAW_START_PLAY, (DWORD)(lFrom), (DWORD)(lTo))
#define ICDrawStop(hic) \
ICSendMessage(hic, ICM_DRAW_STOP, 0, 0)
#define ICDrawStopPlay(hic) \
ICSendMessage(hic, ICM_DRAW_STOP_PLAY, 0, 0)
#define ICDrawGetTime(hic, lplTime) \
ICSendMessage(hic, ICM_DRAW_GETTIME, (DWORD)(LPVOID)(lplTime), 0)
#define ICDrawSetTime(hic, lTime) \
ICSendMessage(hic, ICM_DRAW_SETTIME, (DWORD)lTime, 0)
#define ICDrawRealize(hic, hdc, fBackground) \
ICSendMessage(hic, ICM_DRAW_REALIZE, (DWORD)(UINT)(HDC)(hdc), (DWORD)(BOOL)(fBackground))
#define ICDrawFlush(hic) \
ICSendMessage(hic, ICM_DRAW_FLUSH, 0, 0)
#define ICDrawRenderBuffer(hic) \
ICSendMessage(hic, ICM_DRAW_RENDERBUFFER, 0, 0)
/************************************************************************
Status callback functions
************************************************************************/
/*
* ICSetStatusProc()
*
* Set the status callback function
*
*/
// end_vfw32
#ifdef WIN32
// begin_vfw32
// ICMessage is not supported on NT
static __inline LRESULT VFWAPI
ICSetStatusProc(
HIC hic,
DWORD dwFlags,
LRESULT lParam,
LONG (CALLBACK *fpfnStatus)(LPARAM, UINT, LONG) )
{
ICSETSTATUSPROC ic;
ic.dwFlags = dwFlags;
ic.lParam = lParam;
ic.Status = fpfnStatus;
// note that ICM swaps round the length and pointer
// length in lparam2, pointer in lparam1
return ICSendMessage(hic, ICM_SET_STATUS_PROC, (DWORD)&ic, sizeof(ic));
}
// end_vfw32
#else
#define ICSetStatusProc(hic, dwFlags, lParam, fpfnStatus) \
ICMessage(hic, ICM_SET_STATUS_PROC, sizeof(ICSETSTATUSPROC), \
(DWORD)(dwFlags), \
(LRESULT)(lParam), \
(LONG ((CALLBACK *) ()))(fpfnStatus))
#endif
// begin_vfw32
/************************************************************************
helper routines for DrawDib and MCIAVI...
************************************************************************/
#define ICDecompressOpen(fccType, fccHandler, lpbiIn, lpbiOut) \
ICLocate(fccType, fccHandler, lpbiIn, lpbiOut, ICMODE_DECOMPRESS)
#define ICDrawOpen(fccType, fccHandler, lpbiIn) \
ICLocate(fccType, fccHandler, lpbiIn, NULL, ICMODE_DRAW)
HIC VFWAPI ICLocate(DWORD fccType, DWORD fccHandler, LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut, WORD wFlags);
HIC VFWAPI ICGetDisplayFormat(HIC hic, LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut, int BitDepth, int dx, int dy);
/************************************************************************
Higher level functions
************************************************************************/
HANDLE VFWAPI ICImageCompress(
HIC hic, // compressor to use
UINT uiFlags, // flags (none yet)
LPBITMAPINFO lpbiIn, // format to compress from
LPVOID lpBits, // data to compress
LPBITMAPINFO lpbiOut, // compress to this (NULL ==> default)
LONG lQuality, // quality to use
LONG FAR * plSize); // compress to this size (0=whatever)
HANDLE VFWAPI ICImageDecompress(
HIC hic, // compressor to use
UINT uiFlags, // flags (none yet)
LPBITMAPINFO lpbiIn, // format to decompress from
LPVOID lpBits, // data to decompress
LPBITMAPINFO lpbiOut); // decompress to this (NULL ==> default)
//
// Structure used by ICSeqCompressFrame and ICCompressorChoose routines
// Make sure this matches the autodoc in icm.c!
//
typedef struct {
LONG cbSize; // set to sizeof(COMPVARS) before
// calling ICCompressorChoose
DWORD dwFlags; // see below...
HIC hic; // HIC of chosen compressor
DWORD fccType; // basically ICTYPE_VIDEO
DWORD fccHandler; // handler of chosen compressor or
// "" or "DIB "
LPBITMAPINFO lpbiIn; // input format
LPBITMAPINFO lpbiOut; // output format - will compress to this
LPVOID lpBitsOut;
LPVOID lpBitsPrev;
LONG lFrame;
LONG lKey; // key frames how often?
LONG lDataRate; // desired data rate KB/Sec
LONG lQ; // desired quality
LONG lKeyCount;
LPVOID lpState; // state of compressor
LONG cbState; // size of the state
} COMPVARS, FAR *PCOMPVARS;
// FLAGS for dwFlags element of COMPVARS structure:
// set this flag if you initialize COMPVARS before calling ICCompressorChoose
#define ICMF_COMPVARS_VALID 0x00000001 // COMPVARS contains valid data
//
// allows user to choose compressor, quality etc...
//
BOOL VFWAPI ICCompressorChoose(
HWND hwnd, // parent window for dialog
UINT uiFlags, // flags
LPVOID pvIn, // input format (optional)
LPVOID lpData, // input data (optional)
PCOMPVARS pc, // data about the compressor/dlg
LPSTR lpszTitle); // dialog title (optional)
// defines for uiFlags
#define ICMF_CHOOSE_KEYFRAME 0x0001 // show KeyFrame Every box
#define ICMF_CHOOSE_DATARATE 0x0002 // show DataRate box
#define ICMF_CHOOSE_PREVIEW 0x0004 // allow expanded preview dialog
#define ICMF_CHOOSE_ALLCOMPRESSORS 0x0008 // don't only show those that
// can handle the input format
// or input data
BOOL VFWAPI ICSeqCompressFrameStart(PCOMPVARS pc, LPBITMAPINFO lpbiIn);
void VFWAPI ICSeqCompressFrameEnd(PCOMPVARS pc);
LPVOID VFWAPI ICSeqCompressFrame(
PCOMPVARS pc, // set by ICCompressorChoose
UINT uiFlags, // flags
LPVOID lpBits, // input DIB bits
BOOL FAR *pfKey, // did it end up being a key frame?
LONG FAR *plSize); // size to compress to/of returned image
void VFWAPI ICCompressorFree(PCOMPVARS pc);
// end_vfw32
#ifdef __cplusplus
} /* End of extern "C" { */
#endif /* __cplusplus */
#endif /* _INC_COMPMAN */
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