1100 lines
37 KiB
C
1100 lines
37 KiB
C
/****************************************************************************
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*
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* capmci.c
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*
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* Control of MCI devices during capture.
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*
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* Microsoft Video for Windows Sample Capture Class
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*
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* Copyright (c) 1992 - 1995 Microsoft Corporation. All Rights Reserved.
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*
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* You have a royalty-free right to use, modify, reproduce and
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* distribute the Sample Files (and/or any modified version) in
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* any way you find useful, provided that you agree that
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* Microsoft has no warranty obligations or liability for any
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* Sample Application Files which are modified.
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*
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***************************************************************************/
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#define INC_OLE2
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#pragma warning(disable:4103)
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#include <windows.h>
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#include <windowsx.h>
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#include <win32.h>
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#include <mmsystem.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include <vfw.h>
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#include <mmddk.h>
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#include "ivideo32.h"
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#include "avicapi.h"
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#include "mmdebug.h"
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#ifdef _DEBUG
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#define DSTATUS(lpcs, sz) statusUpdateStatus(lpcs, IDS_CAP_INFO, (LPTSTR) TEXT(sz))
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#else
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#define DSTATUS(lpcs, sz)
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#endif
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DWORD SendDriverFormat (LPCAPSTREAM lpcs, LPBITMAPINFOHEADER lpbih, DWORD dwInfoHeaderSize);
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/*--------------------------------------------------------------+
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| TimeMSToSMPTE() - change milliseconds into SMPTE time |
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+--------------------------------------------------------------*/
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void FAR PASCAL TimeMSToSMPTE (DWORD dwMS, LPSTR lpTime)
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{
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DWORD dwTotalSecs;
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LONG lHundredths;
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WORD wSecs;
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WORD wMins;
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WORD wHours;
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/* convert to number of seconds */
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dwTotalSecs = dwMS / 1000;
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/* keep the remainder part */
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lHundredths = (dwMS - (dwTotalSecs * 1000)) / 10;
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/* break down into other components */
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wHours = (WORD)(dwTotalSecs / 3600); // get # Hours
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dwTotalSecs -= (wHours * 3600);
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wMins = (WORD)(dwTotalSecs / 60); // get # Mins
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dwTotalSecs -= (wMins * 60);
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wSecs = (WORD)dwTotalSecs; // what's left is # seconds
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/* build the string */
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/* KLUDGE, force hundredths to SMPTE approximation of PAL frames */
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wsprintfA((LPSTR)lpTime, "%02u:%02u:%02u:%02lu", wHours, wMins,
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wSecs, (lHundredths * 25) / 100);
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}
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/*--------------------------------------------------------------+
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| START OF MCI CONTROL SECTION |
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+--------------------------------------------------------------*/
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/*
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* CountMCIDevicesByType
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* Returns a count of the number of VCR or Videodisc
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* devices that MCI claims to know about.
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*/
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int CountMCIDevicesByType ( UINT wType )
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{
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int nTotal = 0;
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DWORD dwCount;
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MCI_SYSINFO_PARMS mciSIP;
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mciSIP.dwCallback = 0;
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mciSIP.lpstrReturn = (LPTSTR) (LPVOID) &dwCount;
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mciSIP.dwRetSize = sizeof (dwCount);
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mciSIP.wDeviceType = wType;
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if (!mciSendCommand (0, MCI_SYSINFO, MCI_SYSINFO_QUANTITY,
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(DWORD_PTR) (LPVOID) &mciSIP))
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nTotal = (int) *( (LPDWORD) mciSIP.lpstrReturn);
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return nTotal;
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}
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/*
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* MCIDeviceClose
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* This routine closes the open MCI device.
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*/
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void MCIDeviceClose (LPCAPSTREAM lpcs)
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{
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mciSendString( TEXT("close mciframes"), NULL, 0, NULL );
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}
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/*
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* MCIDeviceOpen
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* This routine opens the mci device for use, and sets the
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* time format to milliseconds.
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* Return FALSE on error;
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*/
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BOOL MCIDeviceOpen (LPCAPSTREAM lpcs)
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{
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TCHAR ach[160];
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wsprintf( ach, TEXT("open %s shareable alias mciframes"),
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(LPTSTR) lpcs->achMCIDevice);
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lpcs->dwMCIError = mciSendString( ach, NULL, 0, NULL );
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if( lpcs->dwMCIError ) {
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DPF (" MCI Error, open %s shareable alias mciframes", lpcs->achMCIDevice);
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goto err_return;
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}
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lpcs->dwMCIError = mciSendString( TEXT("set mciframes time format milliseconds"),
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NULL, 0, NULL );
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if( lpcs->dwMCIError ) {
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DPF (" MCI Error, set mciframes time format milliseconds");
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goto err_close;
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}
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return ( TRUE );
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err_close:
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MCIDeviceClose (lpcs);
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err_return:
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return ( FALSE );
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}
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/*
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* MCIDeviceGetPosition
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* Stores the current device position in milliseconds in lpdwPos.
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* Returns TRUE on success, FALSE if error.
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*/
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BOOL FAR PASCAL MCIDeviceGetPosition (LPCAPSTREAM lpcs, LPDWORD lpdwPos)
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{
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TCHAR ach[80];
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LPTSTR p;
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LONG lv;
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lpcs->dwMCIError = mciSendString( TEXT("status mciframes position wait"),
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ach, sizeof(ach)/sizeof(TCHAR), NULL );
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if( lpcs->dwMCIError ) {
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DPF (" MCI Error, status mciframes position wait");
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*lpdwPos = 0L;
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return FALSE;
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}
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p = ach;
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while (*p == ' ') p++;
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for (lv = 0; *p >= '0' && *p <= '9'; p++)
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lv = (10 * lv) + (*p - '0');
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*lpdwPos = lv;
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return TRUE;
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}
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/*
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* MCIDeviceSetPosition
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* Sets the current device position in milliseconds.
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* Returns TRUE on success, FALSE if error.
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*/
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BOOL FAR PASCAL MCIDeviceSetPosition (LPCAPSTREAM lpcs, DWORD dwPos)
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{
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TCHAR achCommand[40];
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TCHAR ach[80];
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lpcs->dwMCIError = mciSendString( TEXT("pause mciframes wait"), ach, sizeof(ach)/sizeof(TCHAR), NULL );
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if (lpcs->dwMCIError) {
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DPF (" MCI Error, pause mciframes wait");
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return FALSE;
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}
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wsprintf(achCommand, TEXT("seek mciframes to %ld wait"), dwPos);
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lpcs->dwMCIError = mciSendString( achCommand, ach, sizeof(ach)/sizeof(TCHAR), NULL );
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if (lpcs->dwMCIError)
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DPF (" MCI Error, seek mciframes to %ld wait", dwPos);
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return ( lpcs->dwMCIError == 0 ? TRUE : FALSE );
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}
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/*
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* MCIDevicePlay
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* Start playing the current MCI device from the current position
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* Returns TRUE on success, FALSE if error.
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*/
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BOOL FAR PASCAL MCIDevicePlay (LPCAPSTREAM lpcs)
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{
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TCHAR ach[80];
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lpcs->dwMCIError = mciSendString( TEXT("play mciframes"), ach, sizeof(ach)/sizeof(TCHAR), NULL );
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if (lpcs->dwMCIError)
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DPF (" MCI Error, play mciframes");
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return ( lpcs->dwMCIError == 0 ? TRUE : FALSE );
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}
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/*
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* MCIDevicePause
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* Pauses the current MCI device at the current position
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* Returns TRUE on success, FALSE if error.
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*/
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BOOL FAR PASCAL MCIDevicePause (LPCAPSTREAM lpcs)
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{
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TCHAR ach[80];
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lpcs->dwMCIError = mciSendString( TEXT("pause mciframes wait"), ach, sizeof(ach)/sizeof(TCHAR), NULL );
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if (lpcs->dwMCIError)
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DPF (" MCI Error, pause mciframes wait");
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return ( lpcs->dwMCIError == 0 ? TRUE : FALSE );
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}
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/*
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* MCIDeviceStop
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* Stops the current MCI device
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* Returns TRUE on success, FALSE if error.
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*/
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BOOL FAR PASCAL MCIDeviceStop (LPCAPSTREAM lpcs)
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{
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TCHAR ach[80];
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lpcs->dwMCIError = mciSendString( TEXT("stop mciframes wait"), ach, sizeof(ach)/sizeof(TCHAR), NULL );
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if (lpcs->dwMCIError)
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DPF (" MCI Error, stop mciframes wait");
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return ( lpcs->dwMCIError == 0 ? TRUE : FALSE );
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}
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/*
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* MCIDeviceStep
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* Step the current MCI at the current position
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* Returns TRUE on success, FALSE if error.
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*/
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BOOL FAR PASCAL MCIDeviceStep (LPCAPSTREAM lpcs, BOOL fForward)
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{
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TCHAR ach[80];
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lpcs->dwMCIError = mciSendString(
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fForward ? TEXT("step mciframes wait") :
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TEXT("step mciframes reverse wait"), ach, sizeof(ach)/sizeof(TCHAR), NULL );
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if (lpcs->dwMCIError)
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DPF (" MCI Error, step mciframes wait");
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return ( lpcs->dwMCIError == 0 ? TRUE : FALSE );
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}
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/*
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* MCIDeviceFreeze
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* freeze the current frame
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* Returns TRUE on success, FALSE if error.
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*/
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BOOL FAR PASCAL MCIDeviceFreeze(LPCAPSTREAM lpcs, BOOL fFreeze)
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{
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lpcs->dwMCIError = mciSendString( fFreeze ? TEXT("freeze mciframes wait") :
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TEXT("unfreeze mciframes wait"), NULL, 0, NULL);
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if (lpcs->dwMCIError)
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DPF (" MCI Error, freeze mciframes wait");
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return ( lpcs->dwMCIError == 0 ? TRUE : FALSE );
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}
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/*
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* MCIStepCapture
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* Main routine for performing MCI step capture.
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*
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*/
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void FAR PASCAL _LOADDS MCIStepCapture (LPCAPSTREAM lpcs)
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{
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BOOL fOK = TRUE;
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BOOL fT;
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BOOL fStopping; // True when finishing capture
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DWORD dw;
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int iNumAudio;
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UINT wError; // Error String ID
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LPVIDEOHDR lpVidHdr;
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LPWAVEHDR lpWaveHdr;
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DWORD dwTimeToStop; // Lesser of MCI capture time or frame limit
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BOOL fTryToPaint = FALSE;
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HDC hdc;
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HPALETTE hpalT;
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RECT rcDrawRect;
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#define PROMPTFORSTEPCAPTURE
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#ifdef PROMPTFORSTEPCAPTURE
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TCHAR ach[128];
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TCHAR achMsg[128];
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#endif
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statusUpdateStatus(lpcs, IDS_CAP_BEGIN); // Always the first message
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// Verify capture parameters
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if ((!lpcs->sCapParms.fMCIControl) ||
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(!lpcs->sCapParms.fStepMCIDevice))
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goto EarlyExit;
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lpcs->MCICaptureState = CAPMCI_STATE_Uninitialized;
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lpcs->fCaptureFlags |= (CAP_fCapturingNow | CAP_fStepCapturingNow);
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lpcs->dwReturn = DV_ERR_OK;
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// If not 1 Meg. free, give it up!!!
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if (GetFreePhysicalMemory () < (1024L * 1024L)) {
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errorUpdateError (lpcs, IDS_CAP_OUTOFMEM);
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goto EarlyExit;
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}
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statusUpdateStatus(lpcs, IDS_CAP_STAT_CAP_INIT);
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// Try painting the DIB only if Live window
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fTryToPaint = lpcs->fLiveWindow;
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if (fTryToPaint) {
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hdc = GetDC(lpcs->hwnd);
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SetWindowOrgEx(hdc, lpcs->ptScroll.x, lpcs->ptScroll.y, NULL);
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hpalT = DrawDibGetPalette (lpcs->hdd);
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if (hpalT)
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hpalT = SelectPalette( hdc, hpalT, FALSE);
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RealizePalette(hdc);
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if (lpcs->fScale)
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GetClientRect (lpcs->hwnd, &rcDrawRect);
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else
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SetRect (&rcDrawRect, 0, 0, lpcs->dxBits, lpcs->dyBits);
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}
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// -------------------------------------------------------
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// When should capture stop?
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// -------------------------------------------------------
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// If using MCI, capture for the shorter of the MCI period,
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// or the capture limit
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if (lpcs->sCapParms.fLimitEnabled)
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dwTimeToStop = (DWORD) ((DWORD) 1000 * lpcs->sCapParms.wTimeLimit);
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else
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dwTimeToStop = (DWORD) -1L; // very large
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if (lpcs->sCapParms.fMCIControl) {
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// if MCI stop time not given, use lpcs->sCapParms.wTimeLimit
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if (lpcs->sCapParms.dwMCIStopTime == lpcs->sCapParms.dwMCIStartTime)
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lpcs->sCapParms.dwMCIStopTime = lpcs->sCapParms.dwMCIStartTime +
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(DWORD) ((DWORD)1000 * lpcs->sCapParms.wTimeLimit);
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dw = lpcs->sCapParms.dwMCIStopTime - lpcs->sCapParms.dwMCIStartTime;
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if (lpcs->sCapParms.fLimitEnabled)
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dwTimeToStop = min (dw, dwTimeToStop);
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else
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dwTimeToStop = dw;
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}
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//
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// never ever try to capture more than the index size!
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//
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if (lpcs->fCaptureFlags & CAP_fCapturingToDisk) {
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dw = MulDiv(lpcs->sCapParms.dwIndexSize,
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lpcs->sCapParms.dwRequestMicroSecPerFrame,
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1000l);
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dwTimeToStop = min (dw, dwTimeToStop);
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}
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fOK = FALSE; // Assume the worst
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if (MCIDeviceOpen (lpcs)) {
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if (MCIDeviceSetPosition (lpcs, lpcs->sCapParms.dwMCIStartTime))
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if (MCIDeviceStep (lpcs, TRUE))
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fOK = TRUE;
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}
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if (!fOK) {
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errorUpdateError (lpcs, IDS_CAP_MCI_CONTROL_ERROR);
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statusUpdateStatus(lpcs, 0); // Clear status
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goto EarlyExit;
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}
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// -------------------------------------------------------
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// Spatial and temporal averaging
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// -------------------------------------------------------
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// Frame Averaging, capture the same frame multiple times...
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lpcs->lpia = NULL;
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if (lpcs->sCapParms.wStepCaptureAverageFrames == 0)
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lpcs->sCapParms.wStepCaptureAverageFrames = 1;
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// Only allow averaging if an RGB format
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if (lpcs->lpBitsInfo->bmiHeader.biCompression != BI_RGB)
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lpcs->sCapParms.wStepCaptureAverageFrames = 1;
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// 2x Scaling
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lpcs->lpbmih2x = NULL;
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lpcs->VidHdr2x = lpcs->VidHdr; // Init the 2x copy
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if (lpcs->sCapParms.fStepCaptureAt2x &&
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lpcs->lpBitsInfo->bmiHeader.biCompression == BI_RGB) {
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lpcs->VidHdr2x.lpData = NULL;
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lpcs->lpbmih2x = (LPBITMAPINFOHEADER) GlobalAllocPtr (GHND,
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sizeof (BITMAPINFOHEADER) +
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256 * sizeof (RGBQUAD));
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CopyMemory (lpcs->lpbmih2x, lpcs->lpBitsInfo,
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sizeof (BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD));
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// Try to force the driver into 2x mode
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lpcs->lpbmih2x->biHeight *= 2;
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lpcs->lpbmih2x->biWidth *= 2;
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lpcs->lpbmih2x->biSizeImage *= 4;
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if (!SendDriverFormat (lpcs, lpcs->lpbmih2x, sizeof (BITMAPINFOHEADER))) {
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// Success, allocate new bitspace
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lpcs->VidHdr2x.lpData = GlobalAllocPtr (GHND,
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lpcs->lpbmih2x->biSizeImage);
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lpcs->VidHdr2x.dwBufferLength = lpcs->lpbmih2x->biSizeImage;
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}
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// Something went wrong, no memory, or driver failed request
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// so revert back to original settings
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if (!lpcs->VidHdr2x.lpData) {
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SendDriverFormat (lpcs, (LPBITMAPINFOHEADER) lpcs->lpBitsInfo,
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sizeof (BITMAPINFOHEADER));
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lpcs->sCapParms.fStepCaptureAt2x = FALSE;
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lpcs->VidHdr2x = lpcs->VidHdr; // Back to the original settings
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}
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}
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else
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lpcs->sCapParms.fStepCaptureAt2x = FALSE;
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DPF (" StepCaptureAt2x = %d\r\n", (int) lpcs->sCapParms.fStepCaptureAt2x);
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//
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// If we're compressing while capturing, warm up the compressor
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//
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#ifdef NEW_COMPMAN
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if (lpcs->CompVars.hic) {
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if (ICSeqCompressFrameStart(&lpcs->CompVars, lpcs->lpBitsInfo) == 0) {
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// !!! We're in trouble here!
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dprintf("ICSeqCompressFrameStart failed !!!\n");
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errorUpdateError (lpcs, IDS_CAP_COMPRESSOR_ERROR);
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goto EarlyExit;
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}
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// Kludge, offset the lpBitsOut ptr
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// Compman allocates the compress buffer too large by
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// 2048 + 16 so we will still have room
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((LPBYTE) lpcs->CompVars.lpBitsOut) += 8;
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}
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// No compression desired
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if (!lpcs->CompVars.hic)
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WinAssert(lpcs->CompVars.lpbiOut == NULL);
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#endif
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// -------------------------------------------------------
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// Open the output file
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// -------------------------------------------------------
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if (lpcs->fCaptureFlags & CAP_fCapturingToDisk) {
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if (!CapFileInit(lpcs)) {
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errorUpdateError (lpcs, IDS_CAP_FILE_OPEN_ERROR);
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goto EarlyExit;
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}
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}
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/* Make sure the parent has been repainted */
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UpdateWindow(lpcs->hwnd);
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//
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// AVIInit will allocate sound buffers, but not video buffers
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// when performing step capture.
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//
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wError = IDS_CAP_AVI_INIT_ERROR;
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lpcs->hCaptureEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
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if (lpcs->hCaptureEvent)
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{
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#ifdef CHICAGO
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lpcs->hRing0CapEvt = OpenVxDHandle (lpcs->hCaptureEvent);
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if ( ! lpcs->hRing0CapEvt)
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CloseHandle (lpcs->hCaptureEvent), lpcs->hCaptureEvent = NULL;
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else
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#endif
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wError = AVIInit(lpcs);
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}
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if (wError) {
|
|
lpcs->sCapParms.fUsingDOSMemory = FALSE;
|
|
wError = AVIInit(lpcs);
|
|
}
|
|
|
|
if (wError) {
|
|
/* Error in initalization - return */
|
|
errorUpdateError (lpcs, wError);
|
|
AVIFini(lpcs);
|
|
AVIFileFini(lpcs, TRUE /* fWroteJunkChunks */, TRUE /* fAbort */);
|
|
statusUpdateStatus(lpcs, 0); // Clear status
|
|
// assert(lpcs->dwReturn == wError);
|
|
goto EarlyExit;
|
|
}
|
|
|
|
#ifdef PROMPTFORSTEPCAPTURE
|
|
// -------------------------------------------------------
|
|
// Ready to go, make the user click OK?
|
|
// -------------------------------------------------------
|
|
|
|
// Click OK to capture string (must follow AVIInit)
|
|
//
|
|
LoadString(lpcs->hInst, IDS_CAP_SEQ_MSGSTART, ach, NUMELMS(ach));
|
|
wsprintf(achMsg, ach, (LPBYTE)lpcs->achFile);
|
|
|
|
if (lpcs->sCapParms.fMakeUserHitOKToCapture && (lpcs->fCaptureFlags & CAP_fCapturingToDisk))
|
|
{
|
|
UINT idBtn;
|
|
|
|
idBtn = MessageBox (lpcs->hwnd, achMsg, TEXT(""),
|
|
MB_OKCANCEL | MB_ICONEXCLAMATION);
|
|
|
|
if (idBtn == IDCANCEL)
|
|
{
|
|
AVIFini(lpcs);
|
|
AVIFileFini (lpcs, TRUE, TRUE);
|
|
statusUpdateStatus (lpcs, 0);
|
|
goto EarlyExit;
|
|
}
|
|
}
|
|
#endif // PROMPTFORSTEPCAPTURE
|
|
|
|
/* update the status, so the user knows how to stop */
|
|
statusUpdateStatus(lpcs, IDS_CAP_SEQ_MSGSTOP);
|
|
UpdateWindow(lpcs->hwnd);
|
|
|
|
|
|
if (lpcs->sCapParms.fStepCaptureAt2x || (lpcs->sCapParms.wStepCaptureAverageFrames != 1)) {
|
|
LPIAVERAGE FAR * lppia = (LPIAVERAGE FAR *) &lpcs->lpia;
|
|
|
|
statusUpdateStatus (lpcs, IDS_CAP_STAT_PALETTE_BUILD);
|
|
if (!iaverageInit (lppia, lpcs->lpBitsInfo, lpcs->hPalCurrent)) {
|
|
lpcs->dwReturn = IDS_CAP_OUTOFMEM;
|
|
goto CompressFrameFailure;
|
|
}
|
|
statusUpdateStatus(lpcs, 0);
|
|
}
|
|
DPF (" Averaging %d frames\r\n", lpcs->sCapParms.wStepCaptureAverageFrames);
|
|
|
|
GetAsyncKeyState(lpcs->sCapParms.vKeyAbort);
|
|
GetAsyncKeyState(VK_ESCAPE);
|
|
GetAsyncKeyState(VK_LBUTTON);
|
|
GetAsyncKeyState(VK_RBUTTON);
|
|
|
|
|
|
// -------------------------------------------------------
|
|
// MAIN VIDEO CAPTURE LOOP
|
|
// -------------------------------------------------------
|
|
|
|
fOK=TRUE; // Set FALSE on write errors
|
|
fStopping = FALSE; // TRUE when we need to stop
|
|
|
|
lpVidHdr = &lpcs->VidHdr;
|
|
lpWaveHdr = lpcs->alpWaveHdr[lpcs->iNextWave];
|
|
|
|
lpcs->MCICaptureState = CAPMCI_STATE_Initialized;
|
|
lpcs->dwTimeElapsedMS = 0;
|
|
|
|
// Move back to the starting position
|
|
MCIDeviceSetPosition (lpcs, lpcs->sCapParms.dwMCIStartTime);
|
|
MCIDevicePause (lpcs);
|
|
|
|
// Where are we *really*
|
|
MCIDeviceGetPosition (lpcs, &lpcs->dwMCIActualStartMS);
|
|
|
|
// freeze video
|
|
MCIDeviceFreeze(lpcs, TRUE);
|
|
|
|
while (lpcs->MCICaptureState != CAPMCI_STATE_AllFini) {
|
|
|
|
// -------------------------------------------------------
|
|
// is there any reason to stop or change states
|
|
// -------------------------------------------------------
|
|
if (lpcs->sCapParms.vKeyAbort) {
|
|
if (GetAsyncKeyState(lpcs->sCapParms.vKeyAbort & 0x00ff) & 0x0001) {
|
|
fT = TRUE;
|
|
if (lpcs->sCapParms.vKeyAbort & 0x8000) // Ctrl?
|
|
fT = fT && (GetAsyncKeyState(VK_CONTROL) & 0x8000);
|
|
if (lpcs->sCapParms.vKeyAbort & 0x4000) // Shift?
|
|
fT = fT && (GetAsyncKeyState(VK_SHIFT) & 0x8000);
|
|
fStopping = fT; // User aborts
|
|
}
|
|
}
|
|
#if 0
|
|
// Ignore Left mouse on MCI Capture!!!
|
|
if (lpcs->sCapParms.fAbortLeftMouse)
|
|
if (GetAsyncKeyState(VK_LBUTTON) & 0x0001)
|
|
fStopping = TRUE; // User aborts
|
|
#endif
|
|
|
|
if (lpcs->sCapParms.fAbortRightMouse)
|
|
if (GetAsyncKeyState(VK_RBUTTON) & 0x0001)
|
|
fStopping = TRUE; // User aborts
|
|
if (lpcs->fCaptureFlags & CAP_fAbortCapture) {
|
|
fStopping = TRUE; // Somebody above wants us to quit
|
|
}
|
|
if (lpcs->dwTimeElapsedMS > dwTimeToStop)
|
|
fStopping = TRUE; // all done
|
|
|
|
|
|
// -------------------------------------------------------
|
|
// State machine
|
|
// -------------------------------------------------------
|
|
switch (lpcs->MCICaptureState) {
|
|
|
|
case CAPMCI_STATE_Initialized:
|
|
// Begin video step capture
|
|
DSTATUS(lpcs, "MCIState: Initialized");
|
|
lpcs->MCICaptureState = CAPMCI_STATE_StartVideo;
|
|
break;
|
|
|
|
case CAPMCI_STATE_StartVideo:
|
|
// Begin video step capture
|
|
lpcs->dwTimeElapsedMS = 0;
|
|
lpcs->MCICaptureState = CAPMCI_STATE_CapturingVideo;
|
|
break;
|
|
|
|
case CAPMCI_STATE_CapturingVideo:
|
|
// In the state of capturing video
|
|
if ((lpcs->fCaptureFlags & CAP_fStopCapture) || (lpcs->fCaptureFlags & CAP_fAbortCapture))
|
|
fStopping = TRUE;
|
|
|
|
if (fStopping) {
|
|
MCIDeviceGetPosition (lpcs, &lpcs->dwMCIActualEndMS);
|
|
MCIDevicePause (lpcs);
|
|
|
|
DSTATUS(lpcs, "MCIState: StoppingVideo");
|
|
|
|
if (fOK && !(lpcs->fCaptureFlags & CAP_fAbortCapture))
|
|
lpcs->MCICaptureState = CAPMCI_STATE_VideoFini;
|
|
else
|
|
lpcs->MCICaptureState = CAPMCI_STATE_AllFini;
|
|
|
|
lpcs->fCaptureFlags &= ~CAP_fStopCapture;
|
|
lpcs->fCaptureFlags &= ~CAP_fAbortCapture;
|
|
fStopping = FALSE;
|
|
}
|
|
break;
|
|
|
|
case CAPMCI_STATE_VideoFini:
|
|
// Wait for all buffers to be returned from the driver
|
|
// Then move on to audio capture
|
|
lpcs->MCICaptureState = CAPMCI_STATE_StartAudio;
|
|
DSTATUS(lpcs, "MCIState: VideoFini");
|
|
break;
|
|
|
|
case CAPMCI_STATE_StartAudio:
|
|
// If no audio, go to AllFini state
|
|
if (!lpcs->sCapParms.fCaptureAudio || !fOK) {
|
|
lpcs->MCICaptureState = CAPMCI_STATE_AllFini;
|
|
break;
|
|
}
|
|
|
|
// Move back to the starting position
|
|
MCIDeviceSetPosition (lpcs, lpcs->dwMCIActualStartMS);
|
|
MCIDeviceGetPosition (lpcs, &lpcs->dwMCICurrentMS);
|
|
DSTATUS(lpcs, "MCIState: StartAudio");
|
|
MCIDevicePlay (lpcs);
|
|
waveInStart(lpcs->hWaveIn);
|
|
lpcs->MCICaptureState = CAPMCI_STATE_CapturingAudio;
|
|
lpcs->dwTimeElapsedMS = 0;
|
|
fStopping = FALSE;
|
|
break;
|
|
|
|
case CAPMCI_STATE_CapturingAudio:
|
|
// In the state of capturing audio
|
|
if ((lpcs->fCaptureFlags & CAP_fStopCapture) || (lpcs->fCaptureFlags & CAP_fAbortCapture))
|
|
fStopping = TRUE;
|
|
|
|
MCIDeviceGetPosition (lpcs, &lpcs->dwMCICurrentMS);
|
|
if (lpcs->dwMCICurrentMS + 100 > lpcs->dwMCIActualEndMS)
|
|
fStopping = TRUE;
|
|
if (fStopping) {
|
|
waveInStop(lpcs->hWaveIn);
|
|
MCIDevicePause (lpcs);
|
|
waveInReset(lpcs->hWaveIn);
|
|
lpcs->MCICaptureState = CAPMCI_STATE_AudioFini;
|
|
}
|
|
break;
|
|
|
|
case CAPMCI_STATE_AudioFini:
|
|
// While more audio buffers to process
|
|
if (lpWaveHdr->dwFlags & WHDR_DONE)
|
|
break;
|
|
lpcs->MCICaptureState = CAPMCI_STATE_AllFini;
|
|
break;
|
|
|
|
case CAPMCI_STATE_AllFini:
|
|
DSTATUS(lpcs, "MCIState: AllFini");
|
|
if (fOK)
|
|
statusUpdateStatus(lpcs, IDS_CAP_STAT_CAP_FINI, lpcs->dwVideoChunkCount);
|
|
else
|
|
statusUpdateStatus(lpcs, IDS_CAP_RECORDING_ERROR2);
|
|
break;
|
|
}
|
|
|
|
// -------------------------------------------------------
|
|
// If we are in the video capture phase
|
|
// -------------------------------------------------------
|
|
|
|
if (lpcs->MCICaptureState == CAPMCI_STATE_CapturingVideo) {
|
|
BOOL fKeyFrame;
|
|
LPBYTE lpData;
|
|
DWORD dwBytesUsed;
|
|
|
|
// if averaging...
|
|
if (lpcs->lpia) {
|
|
int j;
|
|
|
|
iaverageZero (lpcs->lpia);
|
|
|
|
// sum together a bunch of frames
|
|
for (j = 0; j < (int)lpcs->sCapParms.wStepCaptureAverageFrames; j++) {
|
|
|
|
videoFrame( lpcs->hVideoIn, &lpcs->VidHdr2x);
|
|
|
|
// Shrink by 2x??
|
|
if (lpcs->sCapParms.fStepCaptureAt2x) {
|
|
CrunchDIB(
|
|
lpcs->lpia, // image averaging structure
|
|
(LPBITMAPINFOHEADER) lpcs->lpbmih2x, // BITMAPINFO src
|
|
(LPVOID) lpcs->VidHdr2x.lpData, // input bits
|
|
(LPBITMAPINFOHEADER) lpcs->lpBitsInfo, // BITMAPINFO dst
|
|
(LPVOID) lpcs->VidHdr.lpData); // output bits
|
|
}
|
|
iaverageSum (lpcs->lpia, lpcs->lpBits);
|
|
}
|
|
iaverageDivide (lpcs->lpia, lpcs->lpBits);
|
|
}
|
|
// otherwise, not averaging, just get a frame
|
|
else {
|
|
videoFrame( lpcs->hVideoIn, &lpcs->VidHdr);
|
|
}
|
|
|
|
fKeyFrame = lpVidHdr->dwFlags & VHDR_KEYFRAME;
|
|
|
|
#ifdef NEW_COMPMAN
|
|
//
|
|
// If we are automatically compressing during capture
|
|
// compress the frame before we write it
|
|
//
|
|
if (lpcs->CompVars.hic)
|
|
{
|
|
LPRIFF priff;
|
|
|
|
dwBytesUsed = 0;
|
|
lpData = ICSeqCompressFrame(&lpcs->CompVars, 0,
|
|
lpVidHdr->lpData,
|
|
&fKeyFrame,
|
|
&dwBytesUsed);
|
|
|
|
// so what if compression fails??
|
|
// Note: the next line is a HACK and relies on the knowledge of how
|
|
// the compression buffer has been allocated.
|
|
|
|
priff = ((LPRIFF)lpData) -1;
|
|
priff->dwType = MAKEAVICKID(cktypeDIBbits, 0);
|
|
priff->dwSize = dwBytesUsed;
|
|
} else
|
|
#endif // NEW_COMPMAN
|
|
{
|
|
lpData = lpVidHdr->lpData;
|
|
dwBytesUsed = lpVidHdr->dwBytesUsed;
|
|
}
|
|
|
|
if (lpcs->CallbackOnVideoFrame)
|
|
lpcs->CallbackOnVideoFrame(lpcs->hwnd, &lpcs->VidHdr);
|
|
|
|
// Update the display
|
|
InvalidateRect(lpcs->hwnd, NULL, TRUE);
|
|
UpdateWindow(lpcs->hwnd);
|
|
|
|
if (lpcs->fCaptureFlags & CAP_fCapturingToDisk) {
|
|
UINT wError;
|
|
BOOL bPending;
|
|
if (!AVIWriteVideoFrame (lpcs,
|
|
lpData,
|
|
dwBytesUsed,
|
|
fKeyFrame,
|
|
(UINT)-1, 0, &wError, &bPending)) {
|
|
fStopping = TRUE;
|
|
if (wError)
|
|
{
|
|
fOK = FALSE;
|
|
errorUpdateError(lpcs, wError);
|
|
}
|
|
assert (!bPending);
|
|
}
|
|
} // endif fCapturingToDisk
|
|
// Warning: Kludge to create frame chunk count when net capture
|
|
// follows.
|
|
else
|
|
lpcs->dwVideoChunkCount++;
|
|
|
|
// if there is still more time, (or at least every 100 frames)
|
|
// show status if we're not ending the capture
|
|
if ((!fStopping) && (lpcs->fCaptureFlags & CAP_fCapturingToDisk) &&
|
|
(lpcs->dwVideoChunkCount)) {
|
|
|
|
// "Captured %ld frames (Dropped %ld) %d.%03d sec. Hit Escape to Stop"
|
|
statusUpdateStatus(lpcs, IDS_CAP_STAT_VIDEOCURRENT,
|
|
lpcs->dwVideoChunkCount, lpcs->dwFramesDropped,
|
|
(int)(lpcs->dwTimeElapsedMS/1000),
|
|
(int)(lpcs->dwTimeElapsedMS%1000)
|
|
);
|
|
} // endif next buffer not ready
|
|
|
|
// Move the MCI source to the next capture point
|
|
// unfreeze video
|
|
MCIDeviceFreeze(lpcs, FALSE);
|
|
{
|
|
DWORD dwPrevMS = lpcs->dwMCICurrentMS;
|
|
UINT nNonAdvanceCount = 0;
|
|
DWORD dwTargetMS = lpcs->dwMCIActualStartMS
|
|
+ MulDiv (lpcs->dwVideoChunkCount,
|
|
lpcs->sCapParms.dwRequestMicroSecPerFrame,
|
|
1000L);
|
|
for (;;)
|
|
{
|
|
MCIDeviceGetPosition (lpcs, &lpcs->dwMCICurrentMS);
|
|
if (lpcs->dwMCICurrentMS > dwTargetMS)
|
|
break;
|
|
|
|
if (lpcs->dwMCICurrentMS <= dwPrevMS)
|
|
{
|
|
if (++nNonAdvanceCount > 5)
|
|
{
|
|
fStopping = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
nNonAdvanceCount = 0;
|
|
|
|
MCIDeviceStep (lpcs, TRUE);
|
|
}
|
|
}
|
|
// freeze video
|
|
MCIDeviceFreeze(lpcs, TRUE);
|
|
lpcs->dwTimeElapsedMS =
|
|
lpcs->dwMCICurrentMS - lpcs->dwMCIActualStartMS;
|
|
|
|
/* return the emptied buffer to the que */
|
|
lpVidHdr->dwFlags &= ~VHDR_DONE;
|
|
}
|
|
|
|
if (lpcs->CallbackOnYield) {
|
|
// If the yield callback returns FALSE, abort
|
|
if ( ! lpcs->CallbackOnYield(lpcs->hwnd))
|
|
fStopping = TRUE;
|
|
}
|
|
|
|
if (lpcs->sCapParms.fYield) {
|
|
MSG msg;
|
|
|
|
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) {
|
|
// Kludge to get rid of timers from lpcs->hwnd
|
|
if (msg.message == WM_TIMER && msg.hwnd == lpcs->hwnd)
|
|
;
|
|
else {
|
|
TranslateMessage(&msg);
|
|
DispatchMessage(&msg);
|
|
}
|
|
}
|
|
}
|
|
|
|
// -------------------------------------------------------
|
|
// Is audio buffer ready to be written?
|
|
// -------------------------------------------------------
|
|
if (lpcs->sCapParms.fCaptureAudio &&
|
|
(lpcs->MCICaptureState == CAPMCI_STATE_CapturingAudio ||
|
|
lpcs->MCICaptureState == CAPMCI_STATE_StartAudio ||
|
|
lpcs->MCICaptureState == CAPMCI_STATE_AudioFini)) {
|
|
int iLastWave;
|
|
|
|
//
|
|
// we may need to yield for audio to get converted.
|
|
//
|
|
if (lpcs->fAudioYield)
|
|
Yield();
|
|
|
|
//
|
|
// if all buffers are done, we have broke audio.
|
|
//
|
|
iLastWave = lpcs->iNextWave == 0 ?
|
|
lpcs->iNumAudio -1 : lpcs->iNextWave-1;
|
|
|
|
if (!fStopping &&
|
|
lpcs->alpWaveHdr[iLastWave]->dwFlags & WHDR_DONE)
|
|
lpcs->fAudioBreak = TRUE;
|
|
|
|
iNumAudio = lpcs->iNumAudio; // don't get stuck here forever...
|
|
// We should probably assert that iNumAudio is >= 0...
|
|
|
|
while (iNumAudio && fOK && (lpWaveHdr->dwFlags & WHDR_DONE)) {
|
|
iNumAudio--;
|
|
if (lpWaveHdr->dwBytesRecorded) {
|
|
/* Chunk info is included in the wave data */
|
|
/* Reset Chunk Size in buffer */
|
|
((LPRIFF)(lpWaveHdr->lpData))[-1].dwSize =
|
|
lpWaveHdr->dwBytesRecorded;
|
|
if (lpcs->CallbackOnWaveStream) {
|
|
lpcs->CallbackOnWaveStream(lpcs->hwnd, lpWaveHdr);
|
|
}
|
|
if (lpcs->fCaptureFlags & CAP_fCapturingToDisk) {
|
|
BOOL bPending = FALSE;
|
|
UINT wError;
|
|
|
|
if(!AVIWriteAudio(lpcs, lpWaveHdr, lpcs->iNextWave, &wError, &bPending)) {
|
|
fStopping = TRUE;
|
|
if (wError) {
|
|
fOK = FALSE;
|
|
errorUpdateError (lpcs, wError);
|
|
}
|
|
}
|
|
} // endif capturing to disk
|
|
// Warning: Kludge to create wave chunk count when net capture
|
|
// follows.
|
|
else {
|
|
lpcs->dwWaveChunkCount++;
|
|
lpcs->dwWaveBytes += lpWaveHdr->dwBytesRecorded;
|
|
}
|
|
} // endif dwBytesRecorded
|
|
|
|
lpWaveHdr->dwBytesRecorded = 0;
|
|
lpWaveHdr->dwFlags &= ~WHDR_DONE;
|
|
|
|
/* return the emptied buffer to the device que */
|
|
if(waveInAddBuffer(lpcs->hWaveIn, lpWaveHdr, sizeof(WAVEHDR))) {
|
|
fOK = FALSE;
|
|
fStopping = TRUE;
|
|
errorUpdateError(lpcs, IDS_CAP_WAVE_ADD_ERROR);
|
|
}
|
|
|
|
/* increment the next wave buffer pointer */
|
|
if(++lpcs->iNextWave >= lpcs->iNumAudio)
|
|
lpcs->iNextWave = 0;
|
|
|
|
lpWaveHdr = lpcs->alpWaveHdr[lpcs->iNextWave];
|
|
|
|
} // endwhile buffer available
|
|
} // endif sound enabled
|
|
} // end of forever
|
|
|
|
CompressFrameFailure:
|
|
|
|
iaverageFini (lpcs->lpia);
|
|
|
|
// Switch back to the normal format
|
|
if (lpcs->sCapParms.fStepCaptureAt2x) {
|
|
SendDriverFormat (lpcs, (LPBITMAPINFOHEADER) lpcs->lpBitsInfo,
|
|
sizeof (BITMAPINFOHEADER));
|
|
GlobalFreePtr (lpcs->VidHdr2x.lpData);
|
|
lpcs->VidHdr2x.lpData = NULL;
|
|
}
|
|
|
|
// And free the 2x memory
|
|
if (lpcs->lpbmih2x) {
|
|
GlobalFreePtr (lpcs->lpbmih2x);
|
|
lpcs->lpbmih2x = NULL;
|
|
}
|
|
|
|
// -------------------------------------------------------
|
|
// END OF MAIN CAPTURE LOOP
|
|
// -------------------------------------------------------
|
|
|
|
lpcs->dwTimeElapsedMS = lpcs->dwMCIActualEndMS - lpcs->dwMCIActualStartMS;
|
|
|
|
/* eat any keys that have been pressed */
|
|
while(GetKey(FALSE))
|
|
;
|
|
|
|
AVIFini(lpcs); // does the Reset, and frees all buffers
|
|
AVIFileFini(lpcs, TRUE /* fWroteJunkChunks */, FALSE /* fAbort */);
|
|
|
|
|
|
/* Notify if there was an error while recording */
|
|
|
|
if(!fOK) {
|
|
dprintf("Replacing error %x with %x (IDS_CAP_RECORDING_ERROR)\n", lpcs->dwReturn, IDS_CAP_RECORDING_ERROR);
|
|
errorUpdateError (lpcs, IDS_CAP_RECORDING_ERROR);
|
|
}
|
|
|
|
if (lpcs->fCaptureFlags & CAP_fCapturingToDisk) {
|
|
if (lpcs->dwVideoChunkCount)
|
|
dw = MulDiv(lpcs->dwVideoChunkCount,1000000,lpcs->dwTimeElapsedMS);
|
|
else
|
|
dw = 0; // The MulDiv doesn't give 0 if numerator is zero
|
|
|
|
if(lpcs->sCapParms.fCaptureAudio) {
|
|
// "Captured %d.%03d sec. %ld frames (%d dropped) (%d.%03d fps). %ld audio bytes (%d.%03d sps)"
|
|
statusUpdateStatus(lpcs, IDS_CAP_STAT_VIDEOAUDIO,
|
|
(UINT)(lpcs->dwTimeElapsedMS/1000),
|
|
(UINT)(lpcs->dwTimeElapsedMS%1000),
|
|
lpcs->dwVideoChunkCount,
|
|
lpcs->dwFramesDropped,
|
|
(UINT)(dw / 1000),
|
|
(UINT)(dw % 1000),
|
|
lpcs->dwWaveBytes,
|
|
(UINT) lpcs->lpWaveFormat->nSamplesPerSec / 1000,
|
|
(UINT) lpcs->lpWaveFormat->nSamplesPerSec % 1000);
|
|
} else {
|
|
// "Captured %d.%03d sec. %ld frames (%d dropped) (%d.%03d fps)."
|
|
statusUpdateStatus(lpcs, IDS_CAP_STAT_VIDEOONLY,
|
|
(UINT)(lpcs->dwTimeElapsedMS/1000),
|
|
(UINT)(lpcs->dwTimeElapsedMS%1000),
|
|
lpcs->dwVideoChunkCount,
|
|
lpcs->dwFramesDropped,
|
|
(UINT)(dw / 1000),
|
|
(UINT)(dw % 1000));
|
|
}
|
|
} // endif capturing to disk (no warnings or errors if to net)
|
|
|
|
if (fOK) {
|
|
// No frames captured, warn user that interrupts are probably not enabled.
|
|
if (lpcs->dwVideoChunkCount == 0) {
|
|
errorUpdateError (lpcs, IDS_CAP_NO_FRAME_CAP_ERROR);
|
|
}
|
|
// No audio captured, (but enabled), warn user audio card is hosed
|
|
else if (lpcs->sCapParms.fCaptureAudio && (lpcs->dwWaveBytes == 0)) {
|
|
errorUpdateError (lpcs, IDS_CAP_NO_AUDIO_CAP_ERROR);
|
|
}
|
|
|
|
// Audio underrun, inform user
|
|
else if (lpcs->sCapParms.fCaptureAudio && lpcs->fAudioBreak) {
|
|
if(lpcs->CompVars.hic) {
|
|
errorUpdateError (lpcs, IDS_CAP_AUDIO_DROP_COMPERROR);
|
|
} else {
|
|
errorUpdateError (lpcs, IDS_CAP_AUDIO_DROP_ERROR);
|
|
}
|
|
}
|
|
|
|
// If frames dropped, or changed capture rate, warn the user
|
|
else if (lpcs->dwVideoChunkCount && (lpcs->fCaptureFlags & CAP_fCapturingToDisk)) {
|
|
|
|
// Warn user if dropped > 10% (default) of the frames
|
|
if ((DWORD)100 * lpcs->dwFramesDropped / lpcs->dwVideoChunkCount >
|
|
lpcs->sCapParms.wPercentDropForError) {
|
|
|
|
// "%d of %ld frames (%d.%03d\%) dropped during capture."
|
|
errorUpdateError (lpcs, IDS_CAP_STAT_FRAMESDROPPED,
|
|
lpcs->dwFramesDropped,
|
|
lpcs->dwVideoChunkCount,
|
|
(UINT)(MulDiv(lpcs->dwFramesDropped,10000,lpcs->dwVideoChunkCount)/100),
|
|
(UINT)(MulDiv(lpcs->dwFramesDropped,10000,lpcs->dwVideoChunkCount)%100)/10
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
EarlyExit:
|
|
|
|
//
|
|
// If we were compressing while capturing, close it down
|
|
//
|
|
#ifdef NEW_COMPMAN
|
|
if (lpcs->CompVars.hic) {
|
|
// Kludge, reset the lpBitsOut pointer
|
|
if (lpcs->CompVars.lpBitsOut)
|
|
((LPBYTE) lpcs->CompVars.lpBitsOut) -= 8;
|
|
ICSeqCompressFrameEnd(&lpcs->CompVars);
|
|
}
|
|
#endif
|
|
|
|
if (fTryToPaint) {
|
|
if (hpalT)
|
|
SelectPalette(hdc, hpalT, FALSE);
|
|
ReleaseDC (lpcs->hwnd, hdc);
|
|
}
|
|
|
|
if (lpcs->sCapParms.fMCIControl)
|
|
MCIDeviceClose (lpcs);
|
|
|
|
// Let the user see where capture stopped
|
|
if ((!lpcs->fLiveWindow) && (!lpcs->fOverlayWindow))
|
|
videoFrame( lpcs->hVideoIn, &lpcs->VidHdr );
|
|
InvalidateRect( lpcs->hwnd, NULL, TRUE);
|
|
|
|
lpcs->fCapFileExists = (lpcs->dwReturn == DV_ERR_OK);
|
|
lpcs->fCaptureFlags &= ~CAP_fCapturingNow;
|
|
lpcs->fCaptureFlags &= ~CAP_fStepCapturingNow;
|
|
|
|
statusUpdateStatus(lpcs, IDS_CAP_END); // Always the last message
|
|
|
|
return;
|
|
}
|