signbox.cpp

OK视频采集卡VC源代码

// SignBox.cpp : implementation file
//

#include "stdafx.h"
#include "OkMfc.h"
#include "SignBox.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

#include "okapi32.h"

int		videotype;					//视频类型
int		scanlines;					//扫描线数
int		fieldfrq;					//场频

extern	HANDLE		hBoard;			//图像卡句柄

int exAutoSetVideoParams(int videotype, int scanlines, int fieldfrq, int sample43 );

/////////////////////////////////////////////////////////////////////////////
// CSignBox dialog


CSignBox::CSignBox(CWnd* pParent /*=NULL*/)
	: CDialog(CSignBox::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSignBox)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
}


void CSignBox::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSignBox)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CSignBox, CDialog)
	//{{AFX_MSG_MAP(CSignBox)
	ON_BN_CLICKED(IDC_SETVIDEO, OnSetvideo)
	ON_BN_CLICKED(IDC_REDETECT, OnRedetect)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSignBox message handlers

BOOL CSignBox::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here

	char	str[128];
	int		extsign = 0;
	int		vidcolor = -1;
	int		ret;

	//video exist
	extsign = okGetSignalParam(hBoard, SIGNAL_VIDEOEXIST);
	if (extsign == 1)
	{
		sprintf(str, "检测到了信号源");
	}
	else if (extsign == 0)
		sprintf(str, "没有信号源");
	else //-1
		sprintf(str, "不支持");

	if (extsign == 1) 
	{
		vidcolor = okGetSignalParam(hBoard, SIGNAL_VIDEOCOLOR);
		if (vidcolor == 1)
			strcat(str, "(Color)");
		else if (vidcolor == 0)
			strcat(str, "(B/W)");
	}
	SetDlgItemText(IDC_VIDEOEXIST, str);


	//video type
	if (extsign == 1) 
	{
		okWaitSignalEvent(hBoard, EVENT_ODDFIELD, 40);
		videotype = okGetSignalParam(hBoard, SIGNAL_VIDEOTYPE);
		if (videotype == 1)
			sprintf(str, "隔行信号(Interlaced)");
		else if (videotype == 0)
			sprintf(str, "逐行信号(Non-interlaced)");
		else if (videotype == -1)
			sprintf(str, "不支持");
	}
	else 
		sprintf(str, "未知");
		
	SetDlgItemText(IDC_VIDEOTYPE, str);

	//video scanlines
	scanlines = -1;
	if (extsign == 1) 
	{ 
		scanlines = okGetSignalParam(hBoard, SIGNAL_SCANLINES);
		if (scanlines == -1)
			sprintf(str, "不支持");
		else
			sprintf(str, "%d 行数/幅", scanlines);
	}
	else
		sprintf(str, "未知");
	SetDlgItemText(IDC_SCANLINES, str);

	//video field frequency
	if (extsign == 1) 
	{
		fieldfrq = okGetSignalParam(hBoard, SIGNAL_FIELDFREQ);
		if (fieldfrq == -1)
			sprintf(str, "未知");
		else 
			sprintf(str, "%d 场数/秒", fieldfrq);
	}
	else if (extsign == -1) 
		sprintf(str, "未知");
	SetDlgItemText(IDC_FRAMEFREQ, str);


	//extern trigger
	ret = okGetSignalParam(hBoard, SIGNAL_EXTTRIGGER);
	if (ret == -1)
		sprintf(str, "不支持");
	else if (ret == 1)
		sprintf(str, "触发状态");
	else
		sprintf(str, "无触发");
	SetDlgItemText(IDC_EXTTRIGGER, str);

	CheckDlgButton(IDC_SAMPLERATIO43, BST_CHECKED);
	if (scanlines == -1) //can not detect signal infos
	{
		GetDlgItem(IDC_SETVIDEO)->EnableWindow(FALSE);
		GetDlgItem(IDC_SAMPLERATIO43)->EnableWindow(FALSE);
		GetDlgItem(IDC_SAMPLERATIO11)->EnableWindow(FALSE);
	}
	else
	{
		GetDlgItem(IDC_SETVIDEO)->EnableWindow(TRUE);
		GetDlgItem(IDC_SAMPLERATIO43)->EnableWindow(TRUE);
		GetDlgItem(IDC_SAMPLERATIO11)->EnableWindow(TRUE);
	}

	//test out trigger
	okPutSignalParam(hBoard, PUTSIGNAL_TRIGGER, 0xf);

	return (TRUE);
}

void CSignBox::OnSetvideo() 
{
	// TODO: Add your control notification handler code here

	exAutoSetVideoParams(videotype, scanlines, fieldfrq,
				IsDlgButtonChecked(IDC_SAMPLERATIO43) );
	EndDialog(TRUE);
}

//--demo to auto-set video and pcapture params according to input signal infos
//just be used M20, M40, M30, M60. M70
int exAutoSetVideoParams(int videotype, int scanlines, int fieldfrq, int sample43 )
{

	long	tvstandard;
	long	samppixel,sampfreq,videoshift;
	RECT	rect;

	//1.video type, 2. sample mode as video type
	okSetVideoParam(hBoard, VIDEO_SIGNALTYPE, videotype);	
	okSetCaptureParam(hBoard, CAPTURE_SAMPLEFIELD, videotype); //0: field 1: frame

	//3.video standard 4.hp and vl, 5.frq segment 
	//6 vidoe shift 7, sample rect
	//4:3
	if ((scanlines==625) && (videotype==1))  //interlace
	{
		if (sample43)   //4:3
		{
			tvstandard = 0; //PAL
			okSetVideoParam(hBoard, VIDEO_TVSTANDARD, tvstandard);	
			okSetVideoParam(hBoard, VIDEO_FREQSEG, 0); //lo seg
			SetRect(&rect, 0, 0, 768, 576);
		}
		else  //1:1
		{
			//first do vidoe rect shift   
			videoshift = MAKELONG((short)100, HIWORD(okSetVideoParam(hBoard,VIDEO_RECTSHIFT,-1)));
			okSetVideoParam(hBoard, VIDEO_RECTSHIFT, videoshift);

			tvstandard = 2; //non-standard
			okSetVideoParam(hBoard, VIDEO_TVSTANDARD, tvstandard);	
			okSetVideoParam(hBoard, VIDEO_FREQSEG, 0); //lo seg
			okSetCaptureParam(hBoard, CAPTURE_HORZPIXELS, 709);
			okSetCaptureParam(hBoard, CAPTURE_VERTLINES, 625);
			SetRect(&rect, 0, 0, 576, 576);
		}
	}else if(sample43 && (scanlines==525) && (videotype==1)) 
	{ 
		if (sample43)  //4:3
		{
			tvstandard = 1; //NTSC
			okSetVideoParam(hBoard, VIDEO_TVSTANDARD, tvstandard);	
			okSetVideoParam(hBoard, VIDEO_FREQSEG, 0); //lo seg
			SetRect(&rect, 0, 0, 640, 480);
		}
		else  //1:1
		{
			//first do vidoe rect shift   
			videoshift = MAKELONG((short)70, HIWORD(okSetVideoParam(hBoard, VIDEO_RECTSHIFT,-1)));
			okSetVideoParam(hBoard, VIDEO_RECTSHIFT, videoshift);

			tvstandard = 2; //non-standard
			okSetVideoParam(hBoard, VIDEO_TVSTANDARD, tvstandard);	
			okSetVideoParam(hBoard, VIDEO_FREQSEG, 0); //lo seg
			okSetCaptureParam(hBoard, CAPTURE_HORZPIXELS, 591);
			okSetCaptureParam(hBoard, CAPTURE_VERTLINES, 525);
			SetRect(&rect, 0, 0, 480, 480);
		}
	}
	else
	{ 
		tvstandard = 2;//non-standard
		okSetVideoParam(hBoard, VIDEO_TVSTANDARD, tvstandard);	

		if (sample43)
			samppixel = (long)(scanlines*1.5104); //1.0 sample in 4:3
		else
			samppixel = (long)(scanlines*1.1328); //0.76 sample in 1:1
re_calc:
		sampfreq = scanlines*samppixel/1000*fieldfrq/1000; //to unit MHz
		if (videotype == 1) //interlaced 
			sampfreq /= 2;
	
		if (sampfreq < 14.75)
			sampfreq = 0; //low
		else if (sampfreq < 30)
			sampfreq = 1; //middle
		else if (sampfreq <= 60)
			sampfreq = 2; //high
		else 
		{
			samppixel = 60000000/(scanlines*(fieldfrq>>videotype)); //
			goto re_calc;
		}

		okSetCaptureParam(hBoard, CAPTURE_HORZPIXELS, samppixel);
		okSetCaptureParam(hBoard, CAPTURE_VERTLINES, scanlines);
		okSetVideoParam(hBoard, VIDEO_FREQSEG, sampfreq); 

		//vidoe rect shift   
		//videoshift=MAKELONG( (short)(samppixel*0.165),(short)(samppixel*0.0512));
		videoshift = MAKELONG((short)(samppixel*0.18), (short)(scanlines*0.08));
		okSetVideoParam(hBoard, VIDEO_RECTSHIFT, videoshift);
		//do again after set shift
		okSetVideoParam(hBoard, VIDEO_TVSTANDARD, tvstandard);	

		SetRect(&rect, 0, 0, (long)(samppixel*0.8), (long)(scanlines*0.9));
	}
	okSetTargetRect(hBoard, VIDEO, &rect);
	okSetTargetRect(hBoard, BUFFER, &rect);

	return tvstandard;
}

BOOL CSignBox::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext) 
{
	return CDialog::Create(IDD, pParentWnd);
}

void CSignBox::OnRedetect() 
{
	SendMessage(WM_INITDIALOG, 0, 0);
}